JXi - Heating Jandy - Free user manual and instructions

Product Type	Gas-Fired Pool and Spa Heater
Model	JXi (200, 260, 400)
Fuel	Natural Gas (NG) or Liquid Propane (LP)
Gas Connection	3/4 in NPT
Water Connection	2 in unthreaded PVC/CPVC (Jandy threaded union)
Water Flow Rate	30-100 gpm (114-379 lpm)
Working Water Pressure	2 psi (adjustable; max 50 psi)
Electrical Supply	120 VAC (<5A) or 240 VAC (<2.5A)
Weight	Up to 156 lbs (57 kg)
Ignition	Hot Surface Igniter
Temperature Control	Pool/Spa Water Temperature Control (thermistor)
Safety Features	High limit switches (135°F/150°F), water pressure switch, air pressure switch, flue temperature sensor, flame detection
Venting	Outdoor or indoor/outdoor shelter, Category I (vertical) or Category III (vertical/horizontal)
Warranty	Limited factory warranty
Spare Parts Availability	From authorized dealers; part numbers in manual (Section 12)

Frequently Asked Questions - JXi Jandy

How do I install the JXi heater?

Installation must be performed by a qualified professional. Follow the instructions in Section 3 (Location Requirements) and Section 5 (Water Connections). Ensure proper clearances, gas supply, water flow, and electrical connections as per local codes.

What type of gas can I use?

The JXi heater is designed for Natural Gas (NG) or Liquid Propane (LP). Check the rating plate on the combustion chamber to confirm the correct fuel type. Do not convert without proper kit and professional assistance.

What is the minimum water flow required?

The minimum water flow rate is 30 gpm (114 lpm). Insufficient flow may cause nuisance shutdowns and damage. Ensure your pump can deliver at least this flow through the heater.

How do I adjust the water pressure switch?

With the pump running, turn the adjustment sprocket clockwise slowly until the heater turns off. Then turn it counterclockwise 1/4 turn. The heater should restart. Verify that when the pump is off, the heater shuts off. See Section 5.3.

What should I do if I smell gas?

Immediately close the main gas supply. Do not light any appliance or touch electrical switches. Leave the building and call your gas supplier from a neighbor's phone. If you cannot reach them, call the fire department.

How do I winterize the heater?

Refer to Section 9.3 Winterizing. Drain all water from the heat exchanger using the drain plug. Blow out remaining water with compressed air to prevent freeze damage. Follow all steps carefully.

What maintenance is required?

Regularly check water chemistry (pH, chlorine levels). Inspect the heater annually for leaks, corrosion, and proper operation. Clean the burner and heat exchanger as needed. See Section 9 for details.

Where can I purchase spare parts?

Genuine Zodiac parts are available from authorized dealers (Preferred Professional Providers). Use the part numbers listed in Section 12 of the manual. Non-genuine parts void warranty.

How do I reset the heater after a fault?

The ignition control may attempt up to 3 restarts. If the fault persists, check the diagnostic messages on the display (Section 10.2). Common faults include airflow, flame, or temperature issues. Refer to troubleshooting section.

Can the JXi be installed indoors?

Yes, for Natural Gas models. It requires proper venting (Category I or III) and combustion air supply. Follow Section 3.3 for indoor installation. LP gas heaters are not recommended indoors due to higher risk.

USER MANUAL JXi Jandy

Line drawing of a hot air compressor unit (no text or symbols)

JXi™ Gas-Fired Pool and Spa Heater

Model Size 200, 260, 400

Essential installation and startup instructions are included in this manual. Additional operation and troubleshooting information is available online by scanning the QR code with your phone or visiting jandy.com

WARNING

If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury, or death.

Do not store or use gasoline or other fl ammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

• Immediately switch off main gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

- If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency or the gas supplier.

WARNING

FOR YOUR SAFETY: This product must be installed and serviced by a contractor who is licensed and qualified in pool equipment by the jurisdiction in which the product will be installed where such state or local requirements exists. In the event no such state or local requirement exists, the installer or maintainer must be a professional with sufficient experience in pool equipment installation and maintenance so that all of the instructions in this manual can be followed exactly. Before installing this product, read and follow all warning notices and instructions that accompany this product. Failure to follow warning notices and instructions may result in property damage, personal injury, or death. Improper installation and/or operation can create carbon monoxide gas and flue gases which can cause serious injury, property damage, or death. For indoor installations, as an additional measure of safety, Zodiac Pool Systems LLC strongly recommends installation of suitable carbon monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces. Improper installation and/or operation may void the warranty.

EQUIPMENT INFORMATION RECORD

Date of Installation ____

Installer Information

Initial Pressure Gauge Reading (with Clean Filter)

Pump Model ____ Horsepower ____

Notes ____

Table of Contents

Section 1. General Information ....4

1.1 Introduction......4
1.2 Safety Instructions....4
1.3 Warranty....5
1.4 Technical Assistance....5
1.5 Specifications 5
1.6 Dimensions 6
1.7 Certification Codes and Standards...... 6
1.8 Heater Components 7

Section 2. Getting Started....8

2.1 Package Contents 8
2.2 Required Equipment 9

Section 3. Location Requirements .... 10

3.1 Clearances....10
3.2 Outdoor Installations....11
3.3 Indoor and Outdoor Shelter Installation....12

Section 4. Gas Connections....21

4.1 Supply Gas Requirements 21
4.2 Gas Inlet Pressure....22
4.3 Special Precautions for LP Gas......23

Section 5. Water Connections.... 23

5.1 Pump Sizing....24
5.2 Plumbing Connections 25
5.3 Water Pressure Switch Adjustment ..... 27
5.4 Check Valve Installation....28
5.5 Pressure Relief Valve Installation ..... 28
5.6 Auxiliary Components, Chlorinators, Ozone Generators and Sanitizing Chemicals 31

Section 6. Electrical Connections......31

6.1 Service Access 32
6.2 Main Wiring Connections....32
6.3 Input Voltage and Conversion....33
6.4 Bonding 34

Section 7. Optional Remote Controls.....34

7.1 Connecting to Remote Pool-Off-Spa Selector (3-Wire Connection)....34
7.2 Connecting to an AquaLink Control System or Remote TSTAT (2-Wire Connection)....35
7.3 "Smart" Communication via RS-485 ..... 35

Section 8. Operating Instructions......38

8.1 Important Safety Instructions 38
8.2 First-Time Start-Up Procedure ...... 39
8.3 To Turn Off Gas to the Heater 40
8.4 Normal Operation 40
8.5 Operating the Controller 40
8.6 Performing Seasonal Shutdown ...... 41

Section 9. Maintenance 42

9.1 Water Chemistry 42
9.2 Swimming Pool Energy Saving Tips ..... 43
9.3 Winterizing 43
9.4 Spring Startup....44
9.5 Inspection and Service 44

Section 10. Troubleshooting....46

10.1 Common Problems....46
10.2 Service Diagnostic Messages......47
10.3 Ignition Control LED Service Codes ..... 48

Section 11. Professional Service and Maintenance....48

11.1 Header Bypass Reassembly Recommendations....48

Section 12. Spare Parts ...... 49

12.1 Major Components 49
12.2 Cabinet Assembly Spare Parts List and Exploded Parts Diagram....50
12.3 Heat System Spare Parts List and Exploded Parts Diagram....51
12.4 Water System Spare Parts List and Exploded Parts Diagram....53
12.5 Electrical System Spare Parts List and Exploded Parts Diagram....54

Section 13. Appendix A. ASME Header.....55

13.1 Dimensions 55
13.2 Package Contents 55
13.3 Pump Sizing....56
13.4 Cabinet Assembly Spare Parts List and Exploded Parts Diagram....59
13.5 Water System Spare Parts List and Exploded Parts Diagram....61

Section 1. General Information

READ AND FOLLOW ALL INSTRUCTIONS

1.1 Introduction

This manual provides installation and operation instructions for the Jandy JXi pool and spa gas heater product line. Read these installation and operation instructions completely before proceeding with the installation. Consult Zodiac Pool Systems LLC ("Zodiac") with any questions regarding this equipment. To obtain additional copies of this manual contact us at 1.800.822.7933.

Zodiac Pool Systems LLC

2882 Whiptail Loop #100

Carlsbad, CA 92010 USA

The blower draws air and fuel through specially designed orifices, delivering a precise mixture to the burner, located inside the sealed combustion chamber. Water flows through the heat exchanger, which surrounds the burner transferring the heat to the water. Exhaust gases are then directed through a duct where it is vented to the atmosphere.

1.2 Safety Instructions

The heater is designed and manufactured to provide many years of safe and reliable service when installed, operated, and maintained according to the information in this manual and the installation codes referred to throughout. Be sure to read and comply with all warnings and cautions.

WARNING

Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury, or death. For indoor installations, as an additional measure of safety, Zodiac Pool Systems LLC strongly recommends the installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces.

The following “Safety Rules for Hot Tubs”, recommended by the U.S. Consumer Product Safety Commission, should be observed when using the spa:

• Spa or hot tub water temperature should never exceed 104°F (40°C). One hundred degrees Fahrenheit (100°F [38°C]) is considered safe for a healthy adult. Special caution is recommended for young children.
• The drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness which could lead to unconsciousness, and subsequently result in drowning.
• Pregnant women take note! Soaking in water above 102°F (38.5°C) can cause fetal damage during the first three (3) months of pregnancy (which could result in the birth of a brain-damaged or deformed child). If pregnant women are going to use a spa or hot tub, they should make sure the water temperature is below 100°F (38°C) maximum.
• The water temperature should always be checked with an accurate thermometer before entering a spa or hot tub. Temperature controls may vary by as much as 1^ F ( 1^ C).
• Persons with a medical history of heart disease, diabetes, circulatory or blood pressure problems should consult their physician before using a hot tub or spa.
• Persons taking any medication which induces drowsiness (e.g., tranquilizers, antihistamines, or anticoagulants) should not use spas or hot tubs.

Prolonged immersion in hot water can induce hyperthermia.

Hyperthermia occurs when the internal body temperature reaches a level several degrees above the normal body temperature of 98.6^ F ( 37^ C). Symptoms include dizziness, fainting, drowsiness, lethargy, and an increase in the internal body temperature. The effects of hyperthermia include:

• Lack of awareness of impending hazard
• Failure to perceive heat
• Failure to recognize need to leave spa
  • Physical inability to leave spa
  • Fetal damage in pregnant women
• Unconsciousness resulting in a danger of drowning

SAVE THESE INSTRUCTIONS

1.3 Warranty

The Jandy JXi heater is sold with a limited factory warranty.

Make all warranty claims to your Jandy dealer or directly to Jandy. Claims must include the heater serial number and model (this information can be found on the rating plate), installation date, and name of the installer. Shipping costs are not included in the warranty coverage.

The warranty does not cover damage caused by improper assembly, installation, operation, winterizing, field modification, or failure to earth bond and properly ground the unit. Also, damage to the heat exchanger by corrosive water is NOT covered by the warranty.

1.4 Technical Assistance

Consult the Jandy technical support department or your local Jandy dealer with any questions or problems involving your Jandy equipment. An experienced technical support staff is ready to assist you in assuring the proper performance and application of Jandy products. For technical support call the Jandy technical support department at 1.800.822.7933.

1.5 Specifications

Supply Gas
INSTALLATION LOCATION*	NATURAL GAS (NG) CERTIFIED	INDOOR, OUTDOOR / COVERED SHELTER
	LIQUID PROPANE (LP) OUTDOOR / COVERED SHELTER
OUTDOOR OPERATION AMBIENT AIR	ANY OUTDOOR OPERATION IN AMBIENT AIR DOWN TO 40°F (4°C)
GAS PIPE HEATER GAS VALVE CONNECTION†	NATURAL GAS (NG)	3/4 in NPT
	LIQUID PROPANE (LP)
Inlet Gas Supply Pressure ‡		Min
	NATURAL GAS (NG)	4.0 in WC
	LIQUID PROPANE (LP)
Water Pipe/Heater Connection	NATURAL GAS (NG)	PVC/CPVC 2 in unthreadedJandy threaded union
	LIQUID PROPANE (LP)
Water Flow Rate		Min
	NATURAL GAS (NG)	30 gpm(76 lpm)
	LIQUID PROPANE (LP)
Working Water Pressure NATURAL
	GAS (NG)	2 psi**
	LIQUID PROPANE (LP)
Exhaust Vent Connection Size (Category I)§ See Section 3.3.5, Exhaust Venting.	NATURAL GAS (NG)	Model 200: 6 inModel 260: 7 inModel 400: 8 in
	LIQUID PROPANE (LP)
Exhaust Vent Connection Size (Category III)§ See Section 3.3.5, Exhaust Venting.	NATURAL GAS (NG)	All Models: 4 in
	LIQUID PROPANE (LP)
Electrical Supply	NATURAL GAS (NG)	120 VAC@<5amps240 VAC@<2.5amps
	LIQUID PROPANE (LP)
High Altitude	NATURAL GAS (NG)	Appliances are normally derated when installed at high elevation. This is not necessary with the JXi heater because it has a special venturi-type combustion system which self-compensates for changes in barometric pressure. Air flow through the blower inlet pulls the correct flow of gas into the burner regardless of air density. JXi heaters are CSA certifi ed for elevations of up to 4,500 feet above sea level. At elevations above 4,500 ft., the heater BTU output can be expected to be reduced by 4% for every 1,000 feet over 4,500 feet above sea level.
	LIQUID PROPANE (LP)
* Indoor installation is not recommended for liquid propane heaters.**Adjustable water pressure switch factory set to 7 psi.See Section 5.3, Water Pressure Switch Adjustment for adjustment instructions.Review Special Precautions for liquid propane heaters (see Section 4.3, Special Precautions for LP Gas)		Any changes to the heater, gas controls, gas valve, air orifi ce, gas orifi ces, wiring, or improper installation may void the warranty. If change is required to any of the above; contact your local Jandy distributor, visit www.jandy.com or call technical support at 1.800.822.7933.
†For gas pipe size requirements see Section 4, Gas Connections‡Value displayed is for operating (fi red) pressure not static.
§ Use type B double-wall gas vent, per table 13.1(a) NFPA 54

1.6 Dimensions

Figure 1. GeneralDimensions
For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

1.7 Certifi cation Codes and Standards

	USA CANADA
Design Certifi ed CSA (Canadian Standards Association)
Compliant	ANSI® Z21.56California South Coast Air Quality ManagementDistrict's (SCAQMD) Rule 1146.2	CSA 4.7
National Codes	National Fuel Gas Code Natural Gas and NFPA® 54/ANSI Z223.1 CAN/CSA-B149.1	Propane Installation Code
	Pay particular attention to the chapter addressing Venting of Equipment	Minimum combustion air requirements MUST be followed for proper and safe operation. Failures may occur when only the minimum combustion air openings are used.
All Jandy heaters must be installed in accordance with the local building and installation codes as per the utility or Authority Having Jurisdiction (AHJ). In the absence of local codes, please refer to the latest edition of the national codes for installation.JXi pool and spa heaters meet or exceed the requirements of energy conservation regulations such as those in states that have disallowed the use of continuously lit pilot type ignition sources.

1.8 HeaterComponents

a. Flue Temperature Sensor: Monitors temperature at the exhaust flue. If excessive temperatures are detected, combustion will stop and a fault will be displayed.

b. Hot Surface Igniter: When current is passed through the ceramic material of the igniter it will achieve temperatures great enough to initiate combustion of the air/fuel mixture.

c. Ignition Control: Provides energy for ignition, monitors flame quality and controls the gas valve. Upon call for heat, the blower is activated to purge the combustion chamber. Electrical power is then applied to the hot surface igniter. When ignition temperature is attained, the gas valve opens and ignition occurs. If stable flame is detected the igniter will power down. If stable flame is not detected the control system will close the valve to prevent further gas release. If a total of 3 ignition attempts fail an ignition fault is displayed.

d. High Limit Switches: Prevent water of excessive temperatures from being discharged from the heater. If either switch, one at the heat exchanger first pass 135°F (57°C) and one at the heat exchanger outlet 150°F (65°C), senses excessive temperature, the gas valve will close and combustion will stop.

e. Pool/Spa Water Temperature Control: Senses water temperature by means of a thermistor. Heater will operate to attain and maintain the water temperature according to the heater settings. Two separate thermostat settings are supported, typically used to set pool and spa temperatures.

f. Water Pressure Switch: Senses whether or not water is available to the heater by measuring back pressure at the header inlet. If insufficient pressure is detected, the display will indicate a "Check Flow" fault and combustion will stop.

g. Gas Valve: Controls gas flow into the burner. Enables flow when the temperature control calls for heat and all safety controls enable operation. It also regulates gas pressure to -0.2" WC (Water Column) below the air pressure at the blower inlet. Necessary pressure regulation cannot be accomplished with common (positive pressure) gas valves.

h. Combustion Blower and Air Orifice: Draws in air and fuel gas creating an air/fuel mixture that is passed through the burner for combustion. The fan will operate for several seconds before flame initiation and after the flame is extinguished to purge the combustion chamber for a clean burn and to expel any residual exhaust gas.

i. Air Pressure Switch: Monitors the vacuum (negative pressure) within the blower housing. This switch verifies that air is flowing through the combustion system by sensing pressure. If air flow is inadequate, combustion will stop and a fault will be displayed.

Indicates a safety control equipped to protect internal components and extend the life of the heater.

Section 2. Getting Started

Install the JXi in accordance with the procedures in this manual, local codes and ordinances, and in accordance with the latest edition of the appropriate national code. See Section 1.7, Certification Codes and Standards.

If the heater is to operate in below freezing conditions it should be installed in a protected outdoor shelter. See Section 3.3, Indoor and Outdoor Shelter Installation.

All gas-fi red products require correct installation to ensure safe operation.

The requirements for pool heaters include the following:

• Field assembly (if required)
- Appropriate site location, clearances and flooring. See Section 3, Location Requirements
- Suffi cient combustion and ventilation air
• Properly sized gas meter and piping
• Proper electrical wiring
- Suffi cient water flow

This manual provides the information needed to meet these requirements. Review all applications and installation procedures before continuing the installation.

2.1 PackageContents

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please see Section 13, Appendix A. ASME Header.

Before completely unpacking the unit please inspect carton for damage. In addition, please check the carton label to ensure that you have the correct fuel type and BTU rating for your application.

OR

Item Description Qty.
1 JXi Heater 1
2 Versa Plumb® Sweep Elbow 1
3 2 in Universal Union Tailpiece 2
4 2 in Universal Union Cap 1
5 2 in Universal Union 0-ring 3
6 2 in Universal Union Nut	3

2.2 Required Equipment

Please ensure that the following equipment is available to the installer at the time of installation.

2.2.1 Tools

Simple line drawing of a tool inside a circle (no text or symbols)

Symbolic icon of a drill bit inside a circle with plus sign (no text or numbers)

Simple icon of a measuring tape inside a circle (no text or symbols)

PVC Pipe Cutter Power Drill Tape Measure

2.2.2 Materials Supplied by Installer

Please ensure that all materials used during the installation are in accordance with local codes or the authority having jurisdiction (AHJ) requirements. If you have any questions regarding the materials that need to be used during this installation please call the Zodiac customer service center at 1.800.822.7933.

Indoor installations will require additional venting and exhaust conversion materials which are outlined in detail in Section 3.3, Indoor and Outdoor Shelter Installation.

NOTE: Required materials may differ from the materials listed. Be sure to confirm with all local and national codes before beginning the installation.

Gas Supplies	Electrical Supplies	Plumbing Supplies
Appropriately sized Gas Piping (see Section 4.1, Supply Gas Requirements)	120 or 240 VAC	PVC Piping
Manual Gas Shut Off Valve	Conduit Elbow/ Conduit connector.	PVC Cement
Gas Union	Flexible Conduit	PTFE (TeflonTM) Tape
Gas Pipe Cap	Wire Nuts (3 ea.)
Leak Solution
1/16 in Hose “T”
1/8 in - 1/16 in Barbed Adapter
1/16 in Flexible Hose

Section 3. LocationRequirements

The JXi heater is shipped from the factory with an exhaust vent confi gured for outdoor installation. The heater is also design-certifi ed for indoor installations, see Section 3.3, Indoor and Outdoor Shelter Installation for details. In Canada indoor installation must use a two pipe direct vent (combustion air and vent piping), see Section 3.3.2, Direct Venting for details.

Location of the heater below or above the pool water level affects operation of its water pressure switch. See Section 5.3, Water Pressure Switch Adjustment for more information.

Equipment must be installed on a firm, solid, non-absorbent level surface; and per the requirements of local codes and Authority Having Jurisdiction (AHJ). Equipment can weigh up to 156 lbs. (57 kg). Use suitably rated mounting surface materials to avoid risk of settlement, and never use sand to level the equipment as the sand will wash away. Check local building codes for additional requirements.

NOTE: If the heater is to be operated in below freezing conditions it should be installed in a protected outdoor shelter.

CAUTION

When pool equipment is located below the pool surface, a leak from any component can cause large scale water loss or flooding. Zodiac Pool Systems LLC cannot be responsible for such water loss or flooding or resulting damage.

3.1 Clearances

The heater must be installed in a location that allows clearances for maintenance and inspection. Minimum distances from combustible surfaces must also be maintained. All criteria given in the following sections reflect minimum clearances as stated in the national standards. However, each installation must also be evaluated, taking into account prevailing local conditions such as wind speed and direction, proximity and height of obstructions that may block ventilation, and proximity to public access areas.

Service Clearance: 36 inches (92 cm) from top of heater for removal of top panel.

18 inches in the US and 24 inches (61 cm) in Canada from the front panel of the heater. One exception to this is if the top panel is reversed such that the water plumbing is now on the left hand side of the heater and the exhaust is on the right hand side. In this case, you will need the service clearance (18" US/24" Can) from the rear panel of the heater.

Combustible Surfaces: Each heater face requires a 6 inch (15 cm) clearance from combustible surfaces. Although it is not advisable, the heater base can be placed on a combustible surface for operation. However, do not install the heater on carpet.

Combustible Surface 6 in (15 cm)

Service Clearance

TOP: 36 in (92 cm)

FRONT: 18 in (46 cm) USA 24 in (61 cm) Canada required per CSA B149.1, section 4.14.2.

NOTE: Service clearance may be needed from the rear if the top panel is reversed.
NOTE: Clearances are manufacturer's tested values. These are given as minimum values. Where local and national codes apply, and if the clearance values specified in the applicable codes are different than those listed in this manual, use the greater value to ensure safest operation.

Figure 2. Clearances

Combustible Surface 6 in (15 cm)

3.2 Outdoor Installations

Locate the heater:

• On a level solid surface
• 5 ft (1.5 m) from inner pool edge unless separated by a permanent solid barrier, i.e. a wall or fence
• In an open area, not under a deck or other structure
• Away from doors windows or louvers that connect in any way to occupied or inhabited areas of the building

NOTE: In Canada the top of the exhaust vent must be at least 10 feet (3 m) from any building opening.

• Away from rainwater runoff
• Away from potential sprinkler water intrusion
• So that the top of the heater is at least 3 feet (1 m) below any overhang
• So that the top surface of the heater is at least 3 feet (1 m) above any forced air inlet within 10 feet (3 m)
• This heater is approved for use outdoors without additional venting attachments. If there are concerns over extreme weather conditions, we do provide the option to add up to 25 feet (7.5 m) of Category III venting material with an approved vent termination cap. Refer to Section 3.3.8, Outdoor Heater Install with Venting for Extreme Weather Conditions for details.

Figure 3. Location Requirements

WARNING
United StatesDo not install the heater with the top of the vent assembly within 4 feet (1.22 m) horizontally, 4 feet (1.22 m) below or less than 1 ft (300 mm) above of any opening into a building. Local codes and installation requirements may vary.	CanadaDo not install the heater with the top of the vent assembly within 10 feet (3.0 m) of any opening into a building. Local codes and installation requirements may vary.

WARNING

3.2.1 Anchor Bracket Installation

Anchor brackets do not come standard with the JXi. If you require the anchor brackets for your installation please order kit #R0593400.

Anchor brackets should be installed in any circumstance where the heater may be subject to natural risks such as extreme weather or earthquake. In Florida, the heater is required to be securely fastened to the equipment pad to meet the applicable requirements of the Florida Building Code. Other jurisdictions may have similar requirements for extreme weather or other natural hazards. Check your local codes for details.

a. Using an adjustable wrench or equivalent tool loosen (DO NOT REMOVE) the retaining nut on the bracket. The upper and lower anchor bracket should be able to rotate freely about the retaining pin.
b. Slide the bracket into the slot located at the lower corner of the heater base.
c. Rotate lower anchor bracket into final position. Ensure that the lower anchor bracket is flush with the equipment pad surface and level.
d. Tighten the retaining nut so that the anchor bracket assembly is secure.
e. Drill a hole in the concrete using the lower anchor bracket hole as a guide. It is advised that a hammer drill with an appropriate concrete drill bit be used.
f. Place a screw in the hole and tighten to fasten the anchor bracket to the concrete pad. Do not over torque the screws.

NOTE: Depending on the location of and access to the bracket, it may be necessary to mark the drill location using the lower anchor bracket hole as a guide. Remove the bracket from the heater, drill the hole and then reattach the bracket to the heater base.

NOTE: Concrete screws are not provided in the anchor bracket kit. Use size 1/4 in x 2-1/4 in galvanized or plated concrete screws and washers.

3.3 Indoor and Outdoor Shelter Installation

Due to the higher risks and hazards of liquid propane (LP) gas, Zodiac ^® does not encourage installation of LP gas heaters indoors, refer to Section 4.3, Special Precautions for LP Gas.

The heater is CSA design-certified for indoor installations. In Canada indoor installation must use a two pipe direct vent (combustion air and vent piping), see Section 3.3.2, Direct Venting for details. Please keep in mind the service and combustible surface clearances from Section 3.1, Clearances when selecting an installation location. You will also need to make considerations for intake combustion air see Section 3.3.1, Combustion Intake Air Supply and exhaust venting see Section 3.3.5, Exhaust Venting. In addition, when pool equipment is installed indoors, appropriate containment measures and drains should be considered for the prevention of property damage in the event of a water leak.

NOTE: An outdoor shelter is an unoccupied enclosure which does not communicate directly with occupied areas.

If the outdoor shelter is a completely closed structure, air openings in accordance with the size recommendations described in Section 3.3.1, Combustion Intake Air Supply must be maintained. If the structure does not have outside air openings then air must be provided for combustion by using our fresh air vent kit.

3.3.1 Combustion Intake Air Supply

Figure 4. Indoor and Outdoor Shelter Installation

As outlined in the latest edition of ANSI® standard Z223.1 (NFPA® 54), the heater location must be properly vented to provide sufficient air supply for proper combustion.

When combustion air is supplied directly through an outside wall, each opening should have a minimum free area of 1 square inch per 4,000 BTU/h (1.2 kW) input of the total input rating of all appliances in the enclosed area. If combustion air must pass through horizontal ducts, each opening should have a minimum free area of 1 square inch per 2,000 BTU/h (1.2 kW) input of the total input rating of all appliances in the enclosed area. Details can be found in Figure 4.

The “Minimum Net Free Open Area” information from Figure 4 is not applicable in installations where exhaust fans or blowers of any type are used. Any equipment which exhausts air from the room where the heater is installed can deplete the combustion air supply which could lead to poor combustion, decreased heater effi ciency and reliability and increased emissions. This could cause fl ue products to accumulate in the room. Additional air must be supplied to compensate for such exhaust. Consult a professional engineer to ensure that installations where exhaust fans or blowers are used are designed and installed in accordance with all applicable local and national installation codes.

In addition, the heater must be completely isolated and protected from any source of corrosive chemical fumes or corrosive vapors (i.e. chlorine or hydrochloric acid).

WARNING

Do not store any chemicals, cleaners, or other corrosive material near combustion air openings or in the room. Avoid locating appliance vents in the vicinity of combustion air openings. Failure to prevent corrosive materials from mixing with combustion air can result in reduced heater life and unsafe heater operation.

3.3.2 DirectVenting

If you plan to supply the intake air directly to the heater, refer to Section 3.3.3, Direct Air Intake and Section 3.3.4, Exterior Venting and Air Intake.

3.3.3 Direct Air Intake

In certain applications it may be necessary to supply intake air directly to the heater. You will need to order and install the direct air conversion R-Kit R0724600. A total equivalent length of 65 ft (20 m) of 3 in (75 mm) PVC tubing can be used on the JXI200 and JXI 260 models. A total equivalent length of 65 ft (20 m) of 6 in (152 mm) PVC tubing can be used on the JXI400 models. Please be aware that each elbow used will account for 12 ft (3.6 m) of length.

TIP: When removing the air hoses form the air orifice, mark the hoses with tape or a marker to help with reassembly.

For ease of access, remove the rear and top panels.

a. Loosen the two screws securing the air orifi ce and screen in place. Remove the air pressure switch and gas valve hose from the air orifi ce.
b. Remove the air orifi ce, separate and dispose of the orifi ce screen.
c. Align the orifi ce adapter with the orifi ce tabs and secure with four screws.

d. Dry fi t the 3 in (75 mm) PVC tubing into the orifi ce adapter. Mark screw hole locations with a pen. Remove and drill pilot holes in the PVC. Fit the PVC into the orifi ce adapter, align the holes and secure with four screws. In the case of the JXI400 (399,000 BTU models), up to a 6 in (152 mm) length of 3 in (75 mm) PVC can be used before increasing it to 6 in (152 mm) diameter PVC pipe.
e. Reinstall the air orifi ce and air hoses.
f. Install the new rear panel over the PVC and secure with four screws.

3.3.4 Exterior Venting and Air Intake

The JXi must be vented to the outdoors. It must not be vented in common with any other appliance, even if that appliance is of the condensing type. Common venting can result in severe corrosion of the JXi or of the other appliances or their venting, or escape of combustion product gases through such appliances or vents. Do not vent the JXi to a fi replace chimney or building chase.

Combustion air ducting, when provided, must not be shared with any other appliance or with another JXi. Doing so may result in flow of air through the other appliances instead of directly from the outdoors.

The combustion air intake and vent outlet must be located exterior to the building and in the same pressure zone - i.e. both through the roof or both through a side wall. The vent terminal must be located in accordance with local codes, as applicable, and in accordance with the following:

• Locate the vent terminal so that it will not be damaged by pedestrians and other traffic c, and so that the discharge is not offensive. The National Fuel Gas Code requires a through-wall vent terminal be at least 7 feet (2.13 m) above grade if located at a public walkway.
• Locate the vent terminal so the vent exhaust does not settle on building surfaces and other nearby objects. Vent products may corrode such surfaces or objects.
• Locate the vent terminal at a suffi cient horizontal distance from any gas or electric metering, regulating or relief equipment. In the United States, this distance must be at least 4 feet (1.22 m). In Canada, it must be at least 10 feet (3.05 m).
• Locate the vent terminal at a suffi cient horizontal distance from any building opening. Take special care to assure that combustion products do not enter a building through windows, doors, ventilation inlets, etc. In the United States, this distance must be at least 4 feet (1.21 m). In Canada, it must be at least 10 feet (3.04 m).

As shown in Figure 5 and Figure 6, the combustion air intake and the vent outlet must be installed no closer together than 18 in (45.7cm) and no farther apart than 60 in (1.5m). The combustion air inlet opening must face downward to prevent entry of rain or snow. The vent outlet must discharge away from the combustion air inlet - normally in a horizontal direction when on a wall and vertically upward when on a roof. Both should terminate at least 12 in (30.5cm) above the snow accumulation level. In locations with freezing climate, extension of the vent pipe outside of the building should be minimized.

Figure 5. Vent and combustion air terminals at exterior wall

Connect the vent pipe to the heater vent collar with an air-tight corrosion-resistant clamp. The connection must not allow leakage of combustion products into the space but should be removable for service.

Install vent piping with a continuous rise of at least 1/4 in per foot (20 mm per meter) away from the heater. This will assure that any condensate forming in the vent pipe will flow back to the heater where it can be disposed of properly.

Support vent piping with suitable hangers so its weight does not bear on the heater or building penetration and so that piping joints are not strained. Support horizontal runs at intervals no greater than 6 feet (1.82 meters), and closer if necessary to avoid sagging. Sagging can trap condensate water and block the vent.

NOTE: Both combustion air and vent piping joints must be sealed appropriately. Connection of combustion air and vent piping to the heater should be serviceable - i.e. removable for heater service.

Figure 6. Vent and combustion air terminals at roof

3.3.5 Exhaust Venting

When the JXi heater is installed indoors (US only) or in an outdoor shelter it can be vented as a Category I or Category III appliance. In either case, the vent pipe sizing must be in accordance with the specifications listed in Table 1. Category III is required for indoor installation in Canada.

For cases when the heater is installed outdoors and there is concern over extreme weather conditions, we also provide the option of adding Category III venting per the specifications listed in Table 1.

It is recommended that all venting be engineered by a licensed mechanical contractor.

• Category I: Appliance operates with a negative vent static pressure, a vent gas temperature that avoids excessive condensate production and will vent vertically terminating at the roof. Venting materials for Category I must be Type B double wall vent. Category I is not approved for indoor installation in Canada.
• Category III: Appliance operates with a positive vent static pressure, a vent gas temperature that avoids excessive condensate production and can be vented horizontally terminating at a side wall.
• Do not terminate heater vents near air conditioning or air supply fans which could pick up exhaust flue products, such as carbon monoxide and other hazardous effluent, and return them inside the building.
• Vent pipe type and material must be carefully selected and depends on the type of installation.
• Do not locate the vent terminal where exhaust flue products could strike against building materials and cause degradation.
• Vent opening should be well away from landscaping or other obstructions that would prevent free air flow to and from vent terminal.
• Do not terminate vent under decks, stairs, or car ports.
• Do not use the appliance to support the vent pipe.
• Vent piping must be supported with no low spots or sagging which could allow condensate to collect.
• Horizontal runs must be sloped upwards away from the heater to a vent terminal at a minimum of 1/4 in per horizontal foot (2 cm/m). See Figure 4.
• Install the vent pipe so it can expand and contract freely with temperature changes.
• Do not run the heater vent into a common vent with any other appliance.
• It is recommended that vent runs over 18 feet be insulated to reduce condensation and use a condensate trap in the vent run close to the heater, especially in cold climate installations.
• When using Category III vent material, it is acceptable to use a larger diameter pipe size if needed. ‡

- For heaters installed outdoors where there is concern over extreme weather conditions, Category III venting with approved vent termination cap can be installed as noted in Table 1 and Section 3.3.8, Outdoor Heater Install with Venting for Extreme Weather Conditions.‡

WARNING

Vent pipe materials, sizing, and installation must be as required by the National Fuel Gas Code NFPA 54/ANSI® Z223.1 or the Canadian Installation Codes for Gas Appliances CAN/CSA-B149.1. Undersized pipe can result in inadequate venting and oversize pipe can result in vent condensation. Improper selection of vent pipe material, incorrect sizing of the pipe, and incorrect installation of vent piping can result in release of combustion products to the indoors. This can cause serious injury or death by Carbon Monoxide poisoning or asphyxiation.

Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury or death. For indoor installations, as an added measure of safety, Zodiac Pool Systems LLC strongly recommends installation of suitable carbon monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces.

Incorrect design and installation of heater vents and ducts can result in personal injury, damage to property, or death. To avoid such hazards, the heater must be installed only by a qualified professional service technician.

It is recommended that all venting be engineered by a licensed mechanical contractor
Codes*	US	National Fuel Gas code ANSI® Z223.1 (NFPA® 54)
	CA	CAN/CSA-B149.1
Category	Static Press.	Stack Temp.	Condensate	Termination Location	Pipe Sizing
					Model Pipe Size		Special Gas Vent Length†(Vertical or horizontal)
I Negative High Minimal Roof					200 6 in (15 cm) N/A
					260 7 in (18 cm) N/A
					400 8 in (20 cm) N/A
III Positive High Minimal				Roof or Side Wall	200	4 in (10 cm)or larger	65 ft (20 m)
					260	4 in (10 cm)or larger	65 ft (20 m)
					400	4 in (10 cm)or larger	65 ft (20 m)
III Positive High Minimal Outdoor‡					200	4 in (10 cm)or larger	25 ft (7.5 m)
					260	4 in (10 cm)or larger	25 ft (7.5 m)
					400	4 in (10 cm)or larger	25 ft (7.5 m)
*Ensure that you are referencing the latest edition and pay special attention to the chapter addressing “Venting of Equipment”. †For each elbow installed, reduce the run length by 12 feet (3.7 m) ‡Applies to outdoor installed heater with concerns over extreme weather conditions.

Table 1. Vent Pipe Sizing Requirements

3.3.6 Indoor and Outdoor Shelter Exhaust Conversion

For both Category I and Category III vent types the heater must first be converted to an indoor exhaust type. In order to complete the conversion you will need to order exhaust conversion R-Kit R0731100.

a. Remove two screws securing the exhaust grill to the exhaust grill backplate.
b. Remove exhaust grill.
c. Remove the two screws securing the rain shield to the exhaust backplate.
d. Remove the rain shield.

e. Remove the remaining two screws securing the exhaust backplate to the exhaust outlet.
f. Remove the exhaust grill backplate.
g. Using two #10 thread cutting screws secure the vent adapter from R-Kit R0731100 to the exhaust outlet.
h. If venting for Category I, install an appropriate vent pipe increaser to accommodate the correct pipe size from Table 1. Secure to the vent adapter using the screw clamp.
When the installation requires horizontal venting in excess of what is allowed for Category I installations or calls for horizontal discharge, the JXi may be installed with a Category III venting system.
Vent the heater either vertically or horizontally using Al29-4C stainless steel components. Consult manufacturers such as Z-Flex® or Heat Fab® to obtain approved components. Venting materials must comply with UL® 1738 for Category III, Special Gas Vent. Based on the normally expected fl ue temperatures of this appliance. PLASTIC VENTING MUST NOT BE USED.

i. If venting for Category III, install appropriate vent pipe from Table 1. Secure to the vent adapter using the screw clamp to ensure a proper seal.
Double check that there are no possible leak paths between joints. If a leak path is identified or suspected it can be sealed using red RTV 600° F rated silicone adhesive.
When using parts or materials from other manufacturers please be sure to follow the manufacturers instructions completely to ensure harmonious function.

IMPORTANT NOTE: In the Commonwealth of Massachusetts, additional requirements, covered in document CMR 248 5.00, which supersede some of the requirements of ANSI Z223.1 (NFPA 54) apply to Side Wall Horizontally Vented appliances. If installing this product using an approved side-wall horizontal vent system in the Commonwealth of Massachusetts, be sure to adhere to these additional requirements. These requirements include verbiage that says that the property owner is to ensure that Carbon Monoxide Detectors are installed in the vicinity of the appliance and also on all levels of the dwelling in which the appliance is installed. For further instructions, contact Technical Support at 1.800.822.7933.

Figure 7. Side Wall Vent Termination

3.3.7 Indoor and Outdoor Shelter Exhaust Termination

Category I: Appliance must be vented vertically and terminate at the roof. Vent must terminate at least 2 feet (610 mm) above any objects within 10 feet (3.05 m). Termination must pass through a properly installed and approved roof jack, a properly sized storm collar and an listed vent cap. See Figure 4.

Category III: Appliance can be vented vertically to terminate at the roof or vented horizontally to terminate at a side wall. Side wall vents must be installed and located in accordance with the National Fuel Gas Code NFPA® 54 / ANSI® Z223.1 or the Canadian Natural Gas and Propane Installation Code CAN/CSA-B149.1. In addition some local installation codes may have requirements that exceed those of the national codes. The product must be installed in accordance with the codes being enforced by the local Authority Having Jurisdiction (AHJ).

3.3.8 Outdoor Heater Install with Venting for Extreme Weather Conditions

In the event that the heater is installed outdoors and there are concerns over extreme weather conditions, the heater exhaust can be converted using Category III vent material as shown in this section. An approved Category III vent termination cap needs to be installed vertically. We recommend using a vent termination cap from Z-flex (part #: 2SVSRCF04). The vent adapter is also required and can be ordered as R-Kit R0731100.

a. Remove two screws securing the exhaust grill to the exhaust grill backplate.
b. Remove exhaust grill.
c. Remove the two screws securing the rain shield to the exhaust backplate.
d. Remove the rain shield.
e. Remove the remaining two screws securing the exhaust backplate to the exhaust outlet.
f. Remove the exhaust grill backplate.
g. Using two #10 thread cutting screws secure the vent adapter from R-Kit R0731100 to the exhaust outlet.
h. Install 4" elbow to the vent adapter using the screw clamp to ensure a proper seal.
Vent the heater vertically using Al29-4C stainless steel components. Consult manufacturers such as Z-Flex® or Heat Fab® to obtain approved components. Venting materials must comply with UL® 1738 for Category III, Special Gas Vent. Based on the normally expected flue temperatures of this appliance. PLASTIC VENTING MUST NOT BE USED.
i. Install vent cap to the vent elbow. Double check that there are no possible leak paths between joints. If a leak path is identified or suspected it can be sealed using red RTV 600° F rated silicone adhesive.
When using parts or materials from other manufacturers please be sure to follow the manufacturers instructions completely to ensure harmonious function.

IMPORTANT NOTE: In the Commonwealth of Massachusetts, additional requirements, covered in document CMR 248 5.00, which supersede some of the requirements of ANSI Z223.1 (NFPA 54) apply to Side Wall Horizontally Vented appliances. If installing this product using an approved side-wall horizontal vent system in the Commonwealth of Massachusetts, be sure to adhere to these additional requirements. These requirements include verbiage that says that the property owner is to ensure that Carbon Monoxide Detectors are installed in the vicinity of the appliance and also on all levels of the dwelling in which the appliance is installed. For further instructions, contact Technical Support at 1.800.822.7933.

3.3.9 Precautions Against Common Venting

Zodiac Pool Systems LLC does not recommend using a common vent to vent multiple appliances through a common duct. If no other option is deemed available by the installer, seek the assistance of a Registered Professional Engineer for proper design of a common venting system.

A properly designed common venting system must include vent temperature limit switches for each appliance. All vent limit switches must be wired in series so as to prevent any appliance from fi ring in the event of a blocked vent. An outside draft inducer must be installed to pull and create negative pressure in the vent system. Refer to ANSI® Z223.1 or in Canada CAN/CSA B149.1 for more information on common venting multiple appliances. Do not connect vent systems of different categories to the same venting system.

3.3.10 Inspection and Replacement of Existing Vent System with New Components

When replacing an existing pool heater with the JXi, it is recommended that a new appropriate venting system is installed with the new heater.

However, if the existing venting system must be used, be sure to carefully inspect the existing system to ensure that it is in good condition and appropriate for the JXi heater. Replace any parts that are not in serviceable condition before completing the installation.

Section 4. Gas Connections

Gas piping installation must be in accordance with the latest edition of ANSI Z223.1 and all local codes. In Canada, the installation must be in accordance with CAN/CSA B149.1 and all local codes that apply.

The heater must be isolated from the gas supply piping system by closing the individual manual shut off valve during any pressure testing of the gas supply piping system at test pressure greater than or equal to 1/2 psi (3.5kPa).

CAUTION

Permanent damage to the gas valve will occur if the installation procedures are not followed correctly.

WARNING

The JXi pool and spa heaters are designed for use with either natural gas or LP gas. Check the rating plate on the front of the combustion chamber to be sure that the heater is designed to use the type of gas being supplied. CONVERTING THIS HEATER FOR USE WITH ANY OTHER FUEL TYPE IS NOT RECOMMENDED BUT, WHEN NECESSARY, SHOULD ONLY BE PERFORMED BY A LICENSED AND QUALIFIED PROFESSIONAL, AND ONLY AFTER CONTACTING ZODIAC POOL SYSTEMS LLC FOR THE PROPER INSTRUCTIONS AND CONVERSION KIT.

All questions should be directed to the Zodiac customer service center at 1.800.822.7933.

4.1 Supply Gas Requirements

Maximum Equivalent Pipe Length (Sch 40 Metallic Pipe)
Natural Gas 1000BTU/FT3— 0.60 Specific Gravity @ 0.5 in. W.C. Pressure DropPropane Gas 2500BTU/FT3— 1.53 Specific Gravity @ 0.5 in. W.C. Pressure Drop
	3/4" 1" 1-1/4" 1-1/2"
Model	NG LP NG	LP NG LP NG LP
JXi200 25 ft	60 ft 90 ft 215	ft 360 ft
JXi260 15 ft	35 ft 50 ft 125	ft 210 ft 480 ft	445 ft
JXi400	* 15 ft 20	ft 55 ft 95 ft 2	25 ft 215 ft 480 ft
*A 3/4" gas line can be used for up to 5 feet maximum length from the gas valve in addition to the sediment trap.
NOTE:Check supply pressure and local code requirements before proceeding with installation.Consider pipe fittings when determining gas pipe sizing. For every elbow used add three (3) feet to straight pipe length.Table shows the minimum supply gas pipe size required. Larger pipe size can be used if required by local code or if desired.It is critical that the incoming gas supply pressure at the heater is within the maximum and minimum pressure requirements. If the range of acceptable supply pressure is not provided, the gas supply system to the heater must be modified to meet pressure requirements.

Table 2. Natural Gas Pipe Size Requirements

• Refer to Table 2 for correct gas inlet piping length from the gas meter to the heater.
• Check the gas meter to make sure it will supply enough gas to the heater and any other appliances using the same gas supply. If unsure, contact your local gas utility to confirm.
• Install a manual gas shutoff valve outside the heater body for service and safety. Never install the shutoff valve inside the body of the heater.
• Install a sediment trap and union ahead of the gas controls and outside the heater body. See Figure 8.
• Do not use a restrictive gas valve.

NOTE: The gas line from the meter is usually larger than the gas valve. Therefore, you will need to reduce connecting pipe as necessary. Make this reduction as close to the heater as possible.

Figure 8. Manual Shut-off Valve and Sediment Trap

ATTENTION

Do not use fl exible appliance connectors on any gas connections unless the connector is CSA approved for outdoor installation, and is marked with the BTUH capacity (which must be equal to or greater than the heater rated input) and the type of gas (Natural or LP). Also, any fl exible connectors, such as CSST buried underground must be certified for underground installation and meet all applicable codes. Please note, use of fl exible connector still requires the installation of a sediment trap per NFPA 54. See Figure 8.

4.2 Gas Inlet Pressure

Before operating the heater it is necessary to test the input gas pressure to ensure that it falls within the required range as outlined in Table 3.

Inlet Gas Pressure	NG(Natural Gas)	LP(Liquid Propane)
	Inches W.C.
MAX 10.5 14
MIN 4 4
All readings must be made while heater is operating.Relying on any reading taken while heater is off may result in poor performance and diffi culty in operation.

Table 3. Supply Gas Input Pressure Requirements

a. Pull gas inlet grommet away from heater body panel.

b. Remove one screw and the gas valve access panel.

c. Remove 1/8 in NPT plug using a 3/16 in Hex Key.

d. Install a 1/8 in to 1/16 in barbed adapter.

e. Connect positive manometer lead to barbed adapter.

• Inlet gas pressure must be taken while the heater, and if possible, all other gas burning appliances supplied by the same gas delivery system, are operating.
• If the gas supply pressure is less than required, check for an undersized pipe between the meter and the heater, a restrictive fitting, or an undersized gas meter. If needed contact the local gas utility company for assistance.
• Once proper inlet pressure has been confirmed, shut off gas supply.
• Remove manometer, hose and barbed fitting from the gas valve.
• Apply joint compound to the NPT plug and reinstall.
• Before operating the heater, test the gas supply system and all connections for leaks using a soap solution. Do not use an open flame to test for leaks.
• Reinstall the gas valve access panel.
• Secure the gas inlet grommet at heater side panel.

View With Side Panel Hidden

For ALL installations the combustion air openings requirements and NFPA54 / ANSI Z223.1 MUST be followed for safe and proper operation.

4.3 Special Precautions for LP Gas

Under the same environmental conditions, liquid propane (LP) gas is more dense or heavier than air and will more readily collect or pool in enclosed areas if adequate ventilation is not provided. It is not recommended to install LP gas heaters in enclosed areas such as pits. Locate heaters a safe distance from LP gas cylinders and fi lling equipment. Consult the National Fuel Gas Code (NFPA® 54/ANSI® Z223.1, latest edition), the Liquefi ed Petroleum Gas Code (NFPA 58, latest edition), the Natural Gas and Propane Installation Code in Canada (CAN/CSA B149.1, latest edition), and any other local codes and fi re protection authorities about specifi c installation restrictions in your area.

Section 5. WaterConnections

Install pool system components with connections as illustrated in Figure 9. Any configuration other than as illustrated in Figure 9 can affect the operation of the water pressure switch. Locating the heater above or below the pool water surface can also affect operation of the water pressure switch.

NOTE: When pool equipment is located below the pool surface, Zodiac Pool System LLC is not responsible for any large scale water loss, flooding or damage caused by a leak.

CAUTION

The pool equipment must be protected from back-siphoning of water. If there is any chance of back-siphoning, provide a check valve between the pool and the filter pump inlet.

Figure 9. Typical Water Piping Confi guration

5.1 PumpSizing

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

All JXi heaters utilize an internal bypass mechanism and thermal regulator valve (TRV) to accommodate flow rates delivered to the heater from a minimum of 30 gallons per minute (gpm) to a maximum flow of 100 gpm.

CAUTION

The system water pump must be capable of providing no less than 30 gpm of flow through the heater. Flow rates at less than 30 gpm may cause nuisance operation causing damage to the heater or causing the heater to turn off.

Model Min	gpm (lpm)	Max gpm (lpm)
JXi 200 30 (1)	14) 100 (379)
JXi 260 30 (1)	14) 100 (379)
JXi 400 30 (1)	14) 100 (379)

Table 4. Recommended Flow Rate Adjustment

Figure 10. Head Loss Chart

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

5.1.1 Manual Bypass Valve

A manual bypass valve is to be installed in any system in which the pump flow exceeds 100 gpm to the heater.

• Connect a valve between the water inlet and outlet. See inset "a." in Figure 9.
• Adjust the valve to bring the flow rate within the acceptable range. See Table 4.
• Remove the valve handle to avoid tampering.

5.1.2 Pump Sizing for New Pool Construction

When sizing a pump for the system, the head loss for all system components must be added together when determining the design flow rate. Component "Head Loss at Flow" curves are available from equipment manufacturers.

NOTE: In order to properly establish head loss at flow for a filter, remember that a "dirty" filter can typically add 10 psi of additional head loss (23 extra feet of head). This must be considered when sizing a pump for a new pool system.

5.1.3 Pump Sizing for Replacement in an Existing Pool

If the JXi heater replaces a different model of heater, determine if the existing pump is capable of providing the minimum flow of 30 gpm. JXi heaters are high efficiency heaters. Heaters typical of this construction may have higher head loss characteristics than the one being replaced.

CAUTION

Heater failure due to insufficient water flow is not covered under warranty. See measurements in the Head Loss Chart. See Figure 10.

5.2 Plumbing Connections

The heater has a standard 2 inch water manifold and coupling design. With this feature, only nominal two inch PVC or CPVC may be connected to the heater. However, by installing appropriate pipe adapters and two-inch pipe (supplied by the installer), any size existing pipe may be fitted to the heater.

5.2.1 Reverse Plumbing Connection

The JXi heater is shipped with the manifold on the right side by default. If necessary the water connections can be orientated to the left side by rotating the top panel of the appliance.

NOTE: The electrical raceway, transformer, PIB, Ignition control and voltage selector board are all accessed through the default front panel. Special considerations should be made for service clearance, see Figure 2, before the final location and orientation of the appliance is determined.

• Turn off all power to the heater at the breaker.
• Ensure that the pump is off and will remain off for the duration of the procedure.
  a. Remove the four black screws securing the heater top panel to the heater body.
  b. Lift the heater top panel. Be careful not to damage or apply undue stress to the user interface wiring.

c. Rotate the heater top panel 180°.

• Place the heater top panel on the heater body.
• Secure with the four screws removed in step "a".
• Restore power to the heater.
• Return the heater to normal operation.

5.2.2 Water Inlet Plumbing

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

There are two options for water inlet connections on the JXi. Both confi gurations use the same water outlet to return heated water to the pool. Be sure to check flow rates as outlined in Section 5.1, Pump Sizing and if necessary make provisions for and ensure sufficient space for the installation of a manual bypass valve as outlined in Section 5.1.1, Manual Bypass Valve.

The top inlet is intended for use with the Jandy Versa Plumb® sweep elbow. Plumbing in this configuration can increase hydraulic efficiency particularly when used in a system with other Versa Plumb compatible, Jandy Equipment. See Figure 11.

The sweep elbow also provides the advantage of its exclusive interface with the Zodiac AquaLink® RS temperature sensor.

The side inlet is positioned at a 10 1/8 in (255.7 cm) center height providing an ideal height for replacement unit or new construction plumbing.

• Turn off all power to the heater at the breaker.
• Turn off main gas supply to heater.
• Ensure that the pump is off and will remain off for the duration of the procedure.
• Do a dry fit test of cut pipe lengths in order to ensure proper seating of the union tailpiece and o-ring. Make adjustments to pipe length or positioning as needed.
• Clean all adhesion surfaces with an appropriate NSF® approved all purpose cleaner/primer.
• Slide the union nut onto the cut pipe length or sweep elbow. Ensure proper nut orientation with threads directed towards the heater manifold. See Figure 12.
• Use approved NSF adhesive to glue the tailpiece onto the cut pipe, or sweep elbow.

NOTE: Zodiac Pool Systems LLC recommends Weld-On ^® 724 ^TM PVC to CPVC Cement to glue Schedule 40 PVC.

Figure 11. Versa Plumb Heater Inlet

NOTE: Glue Union Tailpiece and Union Nut away from heater to prevent spillage that can affect the VersaFlo gate operation. Remove excess glue.

Figure 12. InletPiping

• Align Tailpiece and manifold orifice.
• Secure to manifold with union nut hand tight only. Do not overtighten. Do not use pipe joint or thread tape.
• If using the sweep elbow. Use approved NSF adhesive to glue the sweep elbow onto the cut pipe.
• Repeat the above steps for the manifold outlet. Again paying special care to ensure proper seating of the union tailpiece o-ring.
• Install the union nut and drain cap with o-ring at the unused inlet on the heater manifold. Be sure that the o-ring is properly seated. Secure hand tight only. Do not overtighten. Do not use pipe joint or thread tape.
• Return all valves to their operating positions.
• Restore power to the heater at the breaker.
• Turn on pump and inspect carefully for leaks.
• Restore main gas supply.
• Start the system and check for proper flow.
• Return heater to normal operation.

WARNING

Black lightning bolt symbol pointing downward on white background (no text or symbols)

To avoid an electrical shock hazard, which can result in serious injury or death, ensure that all electrical power to the system is turned off before approaching, inspecting or troubleshooting any leaking valves or plumbing that may have caused other electrical devices in the surrounding area to get wet.

WARNING

Follow all fi lter manufacturer's instructions. Never attempt to assemble, dis as sem ble or adjust the fi lter when there is pressurized air in the system. Starting the pump while there is any pressurized air in the system can cause the fi lter lid to be blown off, which can cause death, serious personal injury or property damage.

5.3 Water Pressure Switch Adjustment

The water pressure switch is inside the heater jacket on the water connection side. See Section 1.8, Heater Components, item "f".

The switch is preset at the factory. The pressure switch setting must be adjusted If the heater is installed:

• Below the surface level of the pool
• More than two feet above the pool level
- Where the pressure is measured at 1 psi or greater with the filter pump off

Location of the heater above or below the pool water surface can also affect the operation of the switch. The factory installed switch can accommodate elevations of 6 feet above the pool water surface or 11 feet below the pool water surface. If the heater water connections are outside this range Consult your local Zodiac® representative for recommendations.

• Set the heater control to "OFF".

• Remove seven screws securing the side panel to the heater body.

• Remove the side panel to gain access to the water pressure switch. See Figure 13.

• Turn the filter pump on and confirm that the pressure switch closes with a voltmeter.

• If the switch does not close, check that all valves are open to the heater and that there are no restrictions in the line. You may also need to confirm flow rate from your pump as outlined in Section 5.1, Pump Sizing.

• Once an operational and correctly sized pressure switch has been confirmed, set the heater control to either POOL or SPA. Heater should start.

• With your fingers, turn the adjustment sprocket very slowly clockwise until the heater goes off.
• Slowly turn the pressure switch adjustment sprocket counterclockwise one-quarter turn. The heater should come back on. See Figure 13.

Figure 13. Water Pressure Switch Adjustment

• Check the adjustment by turning the fi liter pump OFF. The burner should shut off immediately. If it does not, restart the fi liter pump and repeat the preceding step. Check the adjustment again. If you are still unable to successfully set your water pressure switch please contact your local Jandy distributor or call technical support at 1.800.822.7933. Additional information can be found at www.jandy.com.
• Return the temperature control to the desired temperature.

CAUTION

The water pressure switch should be adjusted to turn the heater off when the pump is off. Setting the switch to close at too low flow can damage the appliance. Adjust the switch to turn the heater off, not on.

NOTE: It is recommended that a Pressure Release Valve (PRV) be installed prior to taking any of the steps below. Please see Section 5.5, Pressure Relief Valve Installation for details.

5.4 Check Valve Installation

When any equipment is located below the surface of the pool or spa, back-siphoning can occur, which can draw water backwards through the circulation system. This can be particularly concerning if chemically treated water is allowed to flow back into equipment such as heaters, fl iters and pumps. Make sure any chemical feeder or chlorination system outlet lines are downstream of the heater and a positive seal noncorrosive check valve is installed between the

sanitation equipment and the heater. Always install a check valve if there is sanitation equipment installed in the system. Do not install any shutoff valve in the piping between the heater outlet and the pool.

WARNING

A check valve can interfere with the proper operation of certain Suction Vacuum Release System (SVRS) products. To avoid possible entrapment hazard, serious injury, or death, make sure to review the operation/owners manual of your particular SVRS product before installing the check valve.

5.5 Pressure Relief Valve Installation

A pressure relief valve (PRV) is recommended in all installations, and is mandatory in any installation in which the water flow can be restricted between the heater outlet and the pool/spa. A pressure relief valve may also be required by local codes. Be sure to check any applicable installation codes in your area to determine whether a pressure relief valve is required.

A pressure relief valve is not supplied with the JXi heater. However, Jandy does offer a PRV Kit #R0336101. The following instructions are for use with this kit only. All other equipment installations need to be in accordance with the manufacturers instructions.

The maximum working pressure of this heater is 50 psi. Be sure to take into consideration the maximum allowable pressure of the other components in the system when installing a PRV. Any pressure relief valve installed must comply with provisions of the standard described in ANSI® Z21.22 for the United States or CSA 4.4 in Canada.

5.5.1 Install Pressure Relief Valve Kit R0336101

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

Early models of JXi heaters utilized a different header design that currently used in production, so this heater may have one of two different header design. See Figure 14 below to identify which header design you have. The header type installed on your JXi heater will determine which parts form this kit are used. Please double check that you have all necessary parts to complete the installation and that all parts are damage free. If any parts are missing or damaged please call 1.800.822.7933 for assistance.

Item	Description	Header Type
		A	B
1	Pressure Relief Valve 3/4 in X 3/4 in 50 PSI	X	X
2	Brass Nipple 3/8 in	X
3	Reducer Bushing 3/8 in M to 3/4 in F NPT	X
4	Brass Nipple 3/8 in		X
5	Elbow 90° 3/4 in NPT Brass	X	X
6	PTFE (Tefl oh ^TM ) Tape	X	X

Table 5. Pressure Relief Valve Kit Components/Usage

Figure 14. Identifying Header Design

• Turn off the electrical power to the heater.
• Turn off the main gas supply to the heater.
• If the heater has been operating, ensure you allow enough time for remaining water in the heat exchanger to cool down before beginning. It is recommended that protective gloves be worn during the entire procedure.
• Make sure the fi Iter pump is off and will remain off for the duration of the installation procedure.
• If the heater is below the surface level of the water in the pool or spa, close all shut-off valves between the heater and the pool.

CAUTION

Use PTFE (Tefl on) tape only on the threads of the pipe nipple attachment to the plastic header. Do not use pipe compound or pipe dope on threads or any part that comes into contact with the plastic header. These compounds may damage the header over a period of time.

a. Remove drain plug from header and allow all water to drain from heat exchanger.
b. Locate the threaded boss on the outlet port of the header, and find the dimple at the center.
c. Use the dimple to center the drill bit.

For header type A: Drill a 1/4 in (6.4 mm) diameter hole through the boss.

For header type B: Drill a 3/8 in (9.5 mm) diameter hole through the boss.

Take care not to damage the plastic threads.

TIP: Drilling a 1/8 in (3 mm) diameter hole first will help prevent thread damage.

d. Each male connection should be first wrapped in 5-6 turns of PTFE (Tefl on) tape.

e. For header type A: Assemble the 3/8 in threaded nipple, reducing bushing, elbow and pressure relief valve. Make sure to get a sung fi t. Do not overtighten.

For header type B: Assemble the 3/4 in threaded nipple, elbow and pressure relief valve. Make sure to get a sung fi t. Do not overtighten.

f. Install the pressure relief valve assembly at the heater header. Make sure to get a sung fi t. Do not overtighten.

g. The final orientation of the pressure relief valve should be vertically aligned with the discharge opening facing away from the heater header.

NOTE: Hardware showing in dotted line is not provided by Zodiac. Pressure Relief Valve hardware is provided on ASME heater models only.
h. Install a discharge pipe from the pressure relief valve discharge opening to a safe area. This is a precaution to prevent the possibility of personal injury or property damage in the event scalding water is discharged from the pressure relief valve.
i. Install the discharge pipe so that there is no trapped or standing water in the piping. Discharge piping must be facing down, terminating with a threadless nipple, no more than 6 in (152 mm) and no less than twice the diameter of the discharge pipe from the floor or drain/receptor.

- Discharge piping must be open with no reducers or shut-off valves or other restrictions.

- Discharge piping must be positioned so that any discharged water will have an appropriate drain or run-off path away from the heater and other pool equipment.

- To ensure the continued proper operation of the pressure relief valve, the valve should be tested once a year. To test, lift the lever with the circulation system running to ensure that water will pass through. When the lever is down, there should be no leaks from the outlet.

5.6 Auxiliary Components, Chlorinators, Ozone Generators and Sanitizing Chemicals

The JXi heater is manufactured with materials that are not compatible with high concentrations of ozone, chlorine, bromine, or other sanitizing chemicals. Heater damage caused by improper water chemistry or plumbing confi gurations are not covered by the Zodiac Pool Systems LLC warranty. All questions should be directed to technical support at 1.800.822.7933. Additional information can be found at www.jandy.com. Be sure to adhere to the following: - All sanitation equipment, including chemical feeders and ozone generators, will need to be installed as the last piece of equipment in the pool circulation system.

- A chemically resistant check valve will also need to be installed between the sanitation equipment and the heater to prevent back-flow of high concentration of sanitizer from entering the heater.

- Wire any electrical sanitation equipment so that it cannot operate unless the fi Iter pump is running.

- Always follow pool chemical manufacturer's instructions when adding chemicals to pool.

Section 6. Electrical Connections

Figure 15. JXi Connections / Schematic Wiring Diagram

Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the heater door. The NEC and CEC also require that the equipment and/or appliances associated with the pool water circulating system, including, but not limited to, pump motors and heaters, be bonded together as part of the equipotential bonding grid. Zodiac Pool Systems LLC provides a special labeled bonding lug on the manifold side of the heater to accommodate this requirement.

All electrical connections and wiring must be done by a certified electrician only. Electrical wiring must also be in accordance with the latest edition of the National Electrical Code® (NEC®), ANSI®/National Fire

Protection Association ^® (NFPA ^® ) 70, or in Canada, the Canadian Electrical Code (CSA ^® C22.1) unless local code requirements indicate otherwise.

The heater comes factory-wired for installation with 240 Volt, 60 Hz AC fi eld electrical supply. If the use of 120 Volt, 60 Hz AC fi eld electrical supply is required, You must fi rst change the position of the voltage selector board on the power distribution board. See Section 6.3, Input Voltage and Conversion for details.

WARNING

ELECTRICAL SHOCK HAZARD. This heater contains wiring that carries high voltage. Contact with these wires may result in severe injury or death.

CAUTION

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

Verify proper operation after servicing.

6.1 ServiceAccess

- Remove the four screws holding the front heater panel in place to expose the raceway.

a. Locate the raceway lock release on the interior of the heater raceway.
b. Using a screwdriver or comparable tool; press into the raceway release orifice until the raceway latch releases, and the raceway swings free.
c. Secure the raceway in place by lifting until the locking latch engages.
d. Push the tab on the locking latch to the left to release.

- Press raceway down and back until an audible click indicates that it is latched in position.

- Replace heater front panel.

TECH TIP: For greater access remove the top panel by removing the 4 black screws on the outside of the heater.

Figure 16. Raceway Rotation for Service Access

6.2 Main Wiring Connections

The main wiring connections should be available externally to the heater at the time it is unpacked. Use fl exible conduit to run the main power lines from the power source to the heater connections. No external junction box is required.

• Ensure that all electrical power is shut off to the heater at the breaker.
• Ensure that the fi Iter pump is off and will stay off for the remainder of the procedure.
• Follow applicable service access instructions from Section 6.1, Service Access.

a. Run conduit and power lines from main power source to the heater side panel.
b. Make wire connections via wire nuts.
c. Push wire connections through the knockout into the heater body. Be careful not to damage or abrade any wiring during this procedure.
d. Secure the conduit to the heater body panel at the knockout using a suitable conduit connector or elbow.

Figure 17. Main Wiring Connections

Maintenance Disconnect Means - The National Electrical Code® (NEC®) requires one or more means to simultaneously disconnect all ungrounded conductors to be provided for all utilization equipment other than lighting. Each means shall be readily accessible and within sight from its equipment and shall be located at least 1.5 m (5 ft) horizontally from the inside walls of a pool or spa unless separated from the open water by a permanently installed barrier that provides a 1.5 m (5 ft) reach path or greater.

GFCI Protection - Circuits serving gas-fi red swimming pool and spa water heaters operating at voltages above the low-voltage contact limit per NEC® shall be provided with GFCI protection.

Canadian Electrical Code requires GFCI protection for all equipment located within 3 m of the inside walls of a pool or spa, unless separated from the pool or spa area by a fence, wall, or other permanent barrier.

6.3 Input Voltage and Conversion

The heater comes factory-wired for installation with 240 Volt, 60 Hz AC fi eld electrical supply. If the use of 120 Volt, 60 Hz AC fi eld electrical supply is required, You must fi rst change the position of the voltage selector board on the power distribution board. See Figure 18.

• Ensure that all electrical power is shut off to the heater at the breaker.
• Ensure that the fi Iter pump is off and will stay off for the remainder of the procedure.
• Follow service access instructions from Section 6.1, Service Access.

a. Locate the power distribution board in the lower right hand section of the raceway.
b. Using scissors, clip the zip tie securing the voltage selector board into the power distribution board.
c. Remove and rotate the voltage selector board 180°. The printed message "FOR 120 VAC" will be displayed above the card connection pins.
d. Reinstall voltage selector board.

NOTE: The voltage selector board is keyed so that it will fit in only one direction for either selected voltage (either side of the board).

WARNING

ELECTRICAL SHOCK HAZARD. To avoid an electrical shock hazard, which can result in serious injury or death, ensure that all electrical power to the system is turned off before approaching, inspecting, or troubleshooting any leaking plumbing that may have caused electrical devices in the surrounding area to get wet.

Figure 18. Input Conversion Process

6.4 Bonding

In the United States the National Electrical Code® (NEC®) and in Canada the Canadian Electrical Code (CEC), require that all metallic components of a pool structure, including reinforcing steel, metal fittings and above ground components be bonded together (forming an equipotential bonding grid) with a solid copper conductor not smaller than an 8 AWG (6 AWG in Canada).

Additionally, Zodiac Pool Systems LLC, requires that the appliance be connected to a bonding loop that includes all electrical equipment in the system and on the equipment pad. Bonding lugs must be connected with a solid copper wire at least 8 AWG (6 AWG in Canada) or larger. Failure to do so may void the Zodiac Pool Systems LLC warranty.

CAUTION

To prevent premature failure of the appliance resulting from stray voltages and voltage differentials, the heater must be bonded to other equipment which is part of the pool plumbing system with a solid copper wire not smaller in diameter than 8 AWG (6 AWG) in Canada).

National Electrical Code® (NEC®) requires bonding of the Pool Water. Where none of the bonded pool equipment, structures, or parts are in direct connection with the pool water; the pool water shall be in direct contact with an approved corrosion-resistant conductive surface that exposes not less than 5800 mm² (9 in²) of the surface area to the pool water at all times. The conductive surface shall be located where it is not exposed to physical damage or dislodgement during usual pool activities, and it shall be bonded in accordance with the bonding requirements of NEC Article 680. Refer to locally enforced codes for any additional bonding requirements.

Section 7. Optional Remote Controls

The JXi heater controls can be wired for remote operation. All Zodiac® AquaLink® Control Systems will permit the heater to be operated by remote control. The instructions in the following sections should be used as a general guideline only. Please follow the instructions that accompany your selected control system thoroughly.

If you are setting up a new pool or spa system, or if you have any questions about your heater control system, please call Jandy technical support at 1.800.822.7933.

Electrical wiring must be in accordance with the latest edition of the National Electrical Code (NEC), ANSI®/National Fire Protection Association® (NFPA70®), unless local code requirements indicate otherwise.

Refer to Figure 15 for a complete diagram of wiring connections and terminals.

Consult with Jandy Technical Support, 1.800.822.7933 for questions about installing non-Zodiac remote controls.

7.1 Connecting to Remote Pool-Off-Spa Selector (3-Wire Connection)

• Turn off the power to both the pool/spa control system and the heater unit.
• Follow service access instructions from Section 6.1, Service Access.
• Run the wires from the pool/spa control system through the low voltage knockout on the right or left hand side of the heater.
• Connect the wiring from the pool/spa control system to the heater remote control terminal. See Figure 15 item "b".
• Connect the three wires to the Spa, Pool & Common terminals of the J6 terminal bar.
• Reinstall front panel.

- Restore power to the heater and the pool/spa control system.

NOTE: When a fireman's switch is being utilized and "hi-lo-com" is selected, the heater will fire automatically when the contacts close even if the user interface on the heater is off.

7.1.1 Configure the Control Panel

• Make sure the pool heater is OFF.
• Press and hold MENU, then the POOL and SPA buttons for 5 seconds to access Service Setup mode.

NOTE: The display will revert back to OFF 1 minute after the last key press.

• Press Up or Down to display REMOTE.
• Press MENU, REMOTE OFF (default) is displayed.
• Use Up or Down to scroll through the Remote options until HI-LO-COM is displayed, then press MENU to select.
• Press POOL or SPA to exit Service Setup mode.

7.2 Connecting to an AquaLink Control System or Remote TSTAT (2-Wire Connection)

An interrupt (on/off-type) remote can be connected as a Remote TSTAT to turn the heater on or off but not perform any other function. When using this type of connection, remember to set the heater control to "POOL" or "SPA" and set the thermostat control to maximum.

NOTE: When a fireman's switch is being utilized and "hi-lo-com" is selected, the heater will fire automatically when the contacts close even if the user interface on the heater is off.

7.2.1 Install the Remote TSTAT

• Turn off the power to both the pool/spa control system and the heater unit.
• Follow service access instructions from Section 6.1, Service Access.
• Run the wires from the pool/spa control system through the low voltage knockout on the right or left hand side of the heater.
• Connect the wiring from the pool/spa control system to the heater remote control terminal.
• Connect the two wires to Pool and Common (not Spa) on the J6 terminal bar. See Figure 15 item "b".
• Reinstall panel.
• Restore power to the heater and the pool/spa control system.

NOTE: If you install a time clock to control the filter pump operation, it is recommended that the time clock have its own low voltage (Fireman's) switch to turn off the heater before turning off the pump. The switch should shut off the heater about 15 minutes before the filter pump shuts off. This will allow for a more efficient operation by removing any residual heat contained in the heat exchanger back to the pool.

CAUTION

To avoid damage to the heater, do not connect the power supply of the heater to the output side of the clock if your time clock simply interrupts the high voltage power supply or has a high voltage output. Doing so will prevent the blower from purging the residual heat from the heater when the heater turns off. The blower must be allowed to run for 45 seconds after the heater shuts off.

7.2.2 Configure the Control Panel

• Make sure the pool heater is OFF.
- Press and hold MENU, then the POOL and SPA buttons for 5 seconds to access Service Setup mode.

NOTE: The display will revert back to OFF 1 minute after the last key press.

• Press MENU, REMOTE OFF (default) is displayed.
• Use Up or Down to scroll through the Remote options until REMOTE TSTAT is displayed, then press MENU to select.
• Press POOL or SPA to exit Service Setup mode.
• Press POOL or SPA to adjust the set point to the maximum 104°F (40°C).

7.3 "Smart" Communication via RS-485

To provide “smart” communication between the JXi and a power center board (PCB) (AquaLink® Infinity, AquaLink RS, AquaLink PDA, and AquaLink Z4) through a red four-pin RS485 connector, your PCB must have the appropriate firmware. To determine the REV of the AquaLink RS PCB firmware in your system, refer to Table 6. All AquaLink Infinity Firmware revisions are RS485 ready.

7.3.1 PCB and Firmware Identification for AquaLink RS and AquaLink PDA Connections

Components	Rev MMM or EARLIER	Rev N or LATER
RS485 Connectors	One set of four Two sets of four
JVA Sockets 24 VAC	Located on top of board	Located on bottom of board
Relay Sockets 24 VDC	10 total sockets.Eight located on bottom, two on top of board	11 total sockets.All located on bottom of board.

Table 6. AquaLink RS Power Center Board Identification Features

Figure 19. Wiring the JXi to a Zodiac® Remote

If your PCB firmware is REV MMM or earlier:

Connect via a 2-wire connection. See Section 7.2, Connecting to an AquaLink Control System or Remote TSTAT (2-Wire Connection) for details.

Figure 20. AquaLink RS PCB with Firmware Rev MMM or Lower

If your PCB firmware is REV N or higher:

Connect via RS485 connection. See Section 7.3, "Smart" Communication via RS-485 for details.

Figure 21. AquaLink RS PCB with Firmware Rev N or Higher

NOTE: Only an AquaLink ^ RS System with firmware revision "N", or higher, will support the heater interface. Refer to Table 6 along with Figure 20 and Figure 21 to determine the REV of your system's firmware. If it is "N" or higher, continue with these procedures. If it is MMM or lower, follow the procedures in Section 7.2, Connecting to an AquaLink Control System or Remote TSTAT (2-Wire Connection) for connecting to a remote TSTAT.

NOTE: Only a PDA System with firmware revision 4.1, or higher, will support the heater interface.

7.3.2 RS-485 Connection Procedure

• Turn off the power to both the heater and the controller.
• Open the power center enclosure and remove the low voltage dead front.
• Use 22 gauge 4-conductor wire to run between the heater and the control system and match the wire color order. See Figure 19.
• The wires coming from the heater can be "doubled up" on the red RS485 terminal bar with the four wires from the indoor controller.
• Check all wiring, then apply power to both the heater and the control system. Verify operation in either Service or Auto mode. Refer to your Control System manual for operating instructions.

When the heater is connected to an external controller, all functionality of the heater control panel is disabled, therefore heater functions can be controlled only from the controller. Control can be restored to the local heater control panel by either disconnecting the red RS485 terminal or by entering the service setup mode selecting REMOTE then STANDALONE. Control can be sent back to the external controller by re-entering the service setup mode and selecting JANDY RS485, unplugging and replugging the RS485, or by cycling power to the heater with the RS485 connected.

Do not connect more than two (2) wires to any of the terminals in the Control System when connecting peripheral devices. If connecting the heater to the control system creates this situation, then a Multiplex PCB Kit, which includes the Multiplex Board (part # 6584) must be used. Call Jandy Technical Support at 1.800.822.7933 with any questions.

7.3.3 To Stop the Heater and Prevent Firing After Connecting to an External Controller

• Turn power to the heater ON. The heater display shows: JANDY REMOTE ONLINE PUSH MENU TO DISABLE.
  • After pressing menu, the display will show JANDY REMOTE OFFLINE PUSH MENU TO ENABLE.

7.3.4 To Revert Heater Control Back to Local Heater User Interface

To revert the heater back to Standalone without disconnecting the RS-485:

• Make sure the pool heater is OFF.
• Press and hold MENU, then the POOL and SPA buttons for 5 seconds to access Service Setup mode.

NOTE: The display will revert back to OFF 1 minute after the last key press.

• Press Up or Down to display REMOTE.
• Press MENU, REMOTE OFF (default) is displayed.
• Use Up or Down to scroll through the Remote options until STANDALONE is displayed, then press MENU to select.
• Press POOL or SPA to exit Service Setup mode.

Section 8. Operating Instructions

Follow the instructions outlined below to start the heater. Refer to the Lighting and Shutdown Instructions label on the inside lid panel of the heater. See Figure 23.

All questions should be directed to technical support at 1.800.822.7933. Additional information can be found at www.jandy.com.

WARNING

If you do not follow the instructions below exactly, a fire or explosion may result, causing property damage, personal injury or loss of life.

8.1 Important Safety Instructions

READ BEFORE YOU START

• This appliance does not have a pilot light. It is equipped with an ignition device, which automatically lights the heater. Do NOT try to light the burners by hand.
• BEFORE OPERATING, smell all around the appliance for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

8.1.1 What To Do If You Smell Gas

• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
• Use only your hand to switch on or off the gas control switch. Never use tools.
• If the gas control switch appears broken or will not move, don't try to repair it, call a qualified service technician. Force or attempted repair may result in fire or explosion.
• Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system which has been under water.

8.2 First-Time Start-Up Procedure

WARNING

Vent pipes and heater tops get hot! These surfaces can cause serious burns. Do not touch these surfaces while the heater is in operation.

Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and replace any part of the control system and any gas control which has been under water.

Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the heater.

Do not attempt repairs on the gas controls or appliance. Tampering is dangerous and voids all warranties.

• Confir rm that pool water is flowing normally through the pool system and equipment.
• If it is a new pool or spa installation, operate the fi lter pump with the heater off long enough to completely clean the water. This will remove any installation residue from the water.
• Clean the fi iter before starting the heater.
• Start the heater in either Pool or Spa mode. See Figure 23.
• Start the heater. See Figure 23.
• When the heater starts, confi rm there is adequate water flow. See Section 5, Water Connections for details.

8.2.1 Operating Instructions

Refer to the Lighting and Shutdown Instructions. See Figure 23 located inside the top panel.

• STOP! Read IMPORTANT SAFETY INFORMATION in previous section.
• This appliance is equipped with an ignition device which automatically lights the heater. DO NOT try to light the burner by hand.
• Set temperature thermostat controls to their lowest setting and turn off the controller. Make sure the display shows GAS HEATER IS OFF.
• Turn off all electrical power to the heater at the junction box.
• Remove the heater rear or top panel.
• Toggle gas control switch to OFF position. See Figure 22.
• Wait fi ve (5) minutes to clear out any gas, then smell for gas, including near the fl oor. IF YOU SMELL GAS, STOP! Follow instructions in Section 8.1.1, What To Do If You Smell Gas.
• If no gas is detected, toggle gas control switch to the ON position.
• Replace the rear panel or top.
• Turn on electrical power to the heater.
• Turn the controller ON by pressing POOL or SPA and set the temperatures as necessary.

Figure 22. GasValve

NOTE: If the heater does not start, check that the fi liter pump is ON, the fi liter is clean and that water is flowing to the pool. If the heater still does not operate, follow the procedure in Section 8.3, To Turn Off Gas to the Heater to turn off gas supply to the heater.

WARNING

When the heater is fi red for the fi rst time, the combustion chamber refractory binder material is driven out by the heat of the fl ame. White smoke and/or sharp odors may be emitted from the vent during this period. Do not inhale combustion product fumes at any time, and especially when these fumes are being emitted. This "burn-in" period will last only a few minutes.

8.2.2 If Ignition Is Unsuccessful

If ignition is unsuccessful, or the flame fails during normal operation, the ignition control shuts off the gas valve. The heater will then go through a post purge process and attempt to establish stable combustion two additional times. If ignition is unsuccessful after three attempts, the system shuts down and will automatically attempt to restart after one hour.

• To reset the heater to provide three (3) attempts to start:
• Turn OFF the control then turn it back ON.
• Access either the Pool or Spa mode.

8.3 To Turn Off Gas to the Heater

• Set temperature thermostat controls to their lowest setting and turn off the controller. Make sure the display shows GAS HEATER IS OFF.
• Turn off all electrical power to the heater at the junction box.
• Remove the rear panel or top.
• Toggle gas control switch to OFF.
• Shut off the external gas supply valve to the heater.
• Replace the rear panel or top.

8.4 Normal Operation

During normal operation, the control system measures the temperature of the water flowing through the heater and will begin the start-up process if the temperature is below the set point. If the blower pressure switch senses adequate airflow when the blower starts, the ignition sequence begins. Following a pre-purge, the igniter is energized, then the gas valve opens. As long as a flame is sensed at the burner, operation continues until the temperature of the water entering the heater reaches the temperature control setting.

If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury, or death.

(A) This appliance does not have a pilot light. It is equipped with an ignition device which automatically lights the heater. Do NOT try to light the burners by hand.
(B) BEFORE OPERATING, smell all around the appliance for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
- Do not try to light any appliance.
- Do not touch any electric switch; do not use any phone in your building.
- Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
- If you cannot reach your gas supplier, call the Fire Department.
(C) Use only your hand to activate the gas control switch. Never use tools. If the switch will not move by hand, do not try to repair it. Call a qualified service technician. Force or attempted repair may result in fire or explosion.
(D) Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system which has been under water.

WHAT TO DO IF YOU SMELL GAS

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above on this label.
   2.* Set the thermostat to lowest setting and turn appliance switch to OFF.
2. Turn off all electric power to the appliance.
3. This appliance is equipped with an ignition device which automatically lights the heater. Do not try to light the burners by hand.
4. Remove the top panel.
5. Tum gas control switch to OFF position
6. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow "B" in the safety information above on this label. If you don't smell gas, go to next step.

7. Turn gas control switch to ON position.

8. Replace the top panel.

9. Tum on all electric power to appliance.
   11.* Set thermostat to desired setting and switch appliance from OFF to either POOL or SPA.
10. If the appliance will not operate, check that the filter pump is on, the filter is clean and water is flowing to the pool. Otherwise, follow the instructions "To Turn Gas Off" and call your service technician or gas supplier.

TO TURN GAS OFF

(1) Remove top panel.

(2) * Set the thermostat to lowest setting and switch appliance to OFF.

(3) Turn off all electrical power to the appliance if service is to be performed.

(4) Turn gas control switch to OFF position.

(5) Replace top panel.

* See manual for details of operation and thermostat control.

Figure 23. Lighting and Shutdown Instructions Label on Top Panel (English)

8.5 Operating the Controller

Unless the heater is connected to a remote controller, all operations are set up and programmed through the control panel on the top of the heater. See Figure 24.

NOTE: The display light reverts to OFF after two minutes of inactivity since the last key was pressed.

Figure 24. Main Control Panel

8.5.1 Setting Up Heater Option

NOTE: Verify the heater is OFF before programming.

Before using the heater for the first time, set up the following options:

• Languages: Set a display language
• Temperature Scale: Set temperatures to be displayed in either Celsius or Fahrenheit scale
- Display Light Timeout: Set the display light to turn off after a specific interval of inactivity

To Program the Display Language:

MENU > SELECT USER SETUP LANGUAGE > MENU

SELECT LANGUAGE ENGLISH (UP or DOWN for different language) > MENU (save) > POOL or SPA (exit)

SELECT LANGUAGE ENGLISH

To Program the Temperature Scale (°F or °C):

MENU > SELECT USER SETUP TEMPERATURE SCALE

MENU > SELECT TEMP SCALE °F (UP or DOWN for °F or °C) > MENU (save) > POOL or SPA (exit)

SELECT TEMP SCALE °F

To Program Display Light to Turn Off Automatically:

MENU > SELECT USER SETUP DISPLAY LIGHT > MENU > SELECT DISPLAY LIGHT 2 MIN TIMEOUT (UP or DOWN for timeout length) > MENU (save) > POOL or SPA (exit)

SELECT DISPLAY LIGHT 2 MIN TIMEOUT

8.5.2 Operating the Heater

To Turn On Pool or Spa Heat:

POOL or SPA > UP or DOWN to change current temperature

NOTE: Five (5) seconds of inactivity will store the new temperature setpoint.

SET: 80°F

To Turn the Heater Off:

• POOL to enter Pool Heat Mode > POOL to turn Off Pool Heat Mode
• SPA to enter Spa Heat Mode > Spa to turn Off Spa Heat Mode

When the control panel is OFF, the screen displays:

GAS HEATER IS OFF PRESS POOL OR SPA.

• Temperature Set Point Lock
Once you have programmed pool temperature and spa temperature set points, you can lock them so that they may not be changed inadvertently.
- POOL or SPA > UP or DOWN to change current temperature
- Press UP and DOWN buttons simultaneously for seven (7) seconds to lock or unlock current temperature setpoint

NOTE: Lock or unlock function depends on current temperature setpoint status.

SET POINT LOCKED SETPOINT UNLOCKED

To Maintain Pool or Spa Heat:

(Requires additional external relay and wiring to pump relay contacts, see wiring diagram Figure 15, and must be setup in installer configuration.)

POOL or SPA > MENU > MAINTAIN POOL HEAT or MAINTAIN SPA HEAT (UP or DOWN for Pool or Spa Mode) > MENU (display current temperature setpoint) > UP or DOWN to change temperature setpoint

NOTE: Five (5) seconds of inactivity will store the new temperature setpoint.

MAINTAIN POOL HEAT MAINTAIN SPA HEAT

SET: 80°F

If connected, the Maintain Heat mode monitors the pool water temperature 24 hours a day by turning the pool pump on and sampling the water temperature. When the water temperature drops below the programmed temperature set point, the controller automatically starts heating the pool.

8.6 Performing Seasonal Shutdown

Complete shutdown instructions are as follows. Refer to Figure 23. For winterization instructions, see Section 9.3, Winterizing.

• Set temperature thermostat controls to their lowest setting and turn off the controller. Make sure the display shows OFF.
• Turn off all electrical power to the heater at the junction box.
• Remove the top panel of the heater.
• Turn the gas valve control switch to OFF.
• Shut off the external gas supply valve to the heater.
• Replace the top panel.

Section 9. Maintenance

If the heater is not going to be used for an extended period of time and in colder climates, follow seasonal shutdown instructions. See Section 8.6, Performing Seasonal Shutdown and Figure 23.

IMPORTANT MAINTENANCE NOTE:

We recommend that before each pool season, the Thermal Regulator Valve (TRV) be inspected for proper operation and replaced if there are signs of scaling or corrosion.

Corrosion and scaling are the result of improperly balanced water please see Section 9.1.1, Saturation Index for complete details on managing your water chemistry.

The TRV ensures the heater operates at its optimal efficiency and if properly maintained will extend the life of the heater.

WARNING

Do not operate the heater if the water temperature is below 40^ F ( 4^ C)

• Short term operation of heater when temps are below 40^ F can continue but continuous flow must be maintained.
• Prolonged operation with water below 50^ F can seriously damage the heater and is not covered by warranty.

9.1 Water Chemistry

Proper Water Balance is the key to the enjoyment of your pool or spa experience and to the long life of your heater.

The pH of your pool or spa's water is one of the factors that has the most impact on indicating how properly balanced the water is. The other factors are: temperature, total alkalinity, calcium hardness and total dissolved solids. Cold water is typically more acidic (corrosive), while hot water tends to lead to a scale forming (basic) condition. While the heater is in operation, if the PH is allowed to rise above 7.8 and the calcium hardness and total alkalinity are not properly maintained; calcium in the water could lose solubility, coating the copper tubes inside the heat exchanger. This will restrict the flow of water resulting in reduced efficiency and possible damage to the heater.

If the pH is allowed to drop below 7.2, and the alkalinity is not properly maintained, the water will become more acidic. Acidic water has a tendency to dissolve metal components in the pool plumbing such as copper tubing in the heat exchanger.

Recommended Levels Fiberglass Pools Fiberglass Spas Other Pool and Spa Types
Water Temperature 66-88 °F (20-31 °C)	89-104 °F (31-40 °C)	68-104 °F (20-40 °C)
pH 7.3 - 7.4 7.3 - 7.4 7.6 - 7.8
Total Alkalinity (ppm)	120 - 150	120 - 150	80 - 120
Calcium Hardness (ppm)	200 - 300	150 - 200	200 - 400
Salt (ppm)	4500 Maximum	4500 Maximum	4500 Maximum
Free Chlorine (ppm)*	2 - 3	2 - 3	2 - 3
Total Dissolved Solids (ppm)	3000 Maximum**	3000 Maximum**	3000 Maximum**
*Free Chlorine MUST NOT EXCEED 5 ppm!.**In saltwater chlorinated pools, the total TDS can be as high as 6000 ppm.

Table 7. Pool Water Chemistry

9.1.1 Saturation Index

PH, Total Alkalinity (TA), temperature, Calcium Hardness and Total Dissolved Solids (TDS) play a role in whether the water is either corrosive or scale forming. These factors are combined in the Langelier Saturation Index, which is a method for determining whether or not water is properly balanced. See Table 8 below.

Saturation Index = pH + AF + CF + TF -12.1*
A-Factor = (AF), C-Factor = (CF), T-Factor = (TF)
Total Alkalinity		Calcium Hardness Temperature
A-Factor C-Factor T-Factor
PPM	Factor Value	PPM	Factor Value	°F	Factor Value
5 = 0.7 5 = 0.9 32 = 0.0
25 = 1.4 25 = 1.0		37 = 0.1
50 = 1.7 50 = 1.3		46 = 0.2
75 = 1.9 75 = 1.5		53 = 0.3
100 = 2.0 100 = 1.6		60 = 0.4
150 = 2.2 150 = 1.8		66 = 0.5
200 = 2.3 200 = 1.9		76 = 0.6
300 = 2.5 300 = 2.1		84 = 0.7
400 = 2.6 400 = 2.2		94 = 0.8
800 = 2.9 800 = 2.5		105 = 0.9
A saturation index of 0 is perfectly balancedA negative saturation index has corrosive tendenciesA positive saturation index has scaling tendenciesA saturation index of +0.3 or -0.3 is ideal*-12.1 should be changed to -12.2 if Total Dissolved Solids (TDS) measure at 1,000 ppm or greater

Table 8. Water Saturation Index

The practice of putting tablet-based sanitizer in the skimmer basket can produce heavily chlorinated water with very low pH. If this comes in contact with metal parts of the heater it can cause serious damage. Practices like this should be discontinued.

If acidic conditions are present, there could be signs of metal in the pool water that could cause staining on the floor of your pool. This might manifest itself in the form of brown stains on the finish of your pool bottom or pool water discoloration. Your local pool dealer can test for metals in your water or can provide you with a test kit.

Every effort should be made to maintain the water balance of your pool or spa in the proper range. Ignoring this very important component of your pool's water chemistry can make the water less enjoyable to bathe in and result in permanent damage to your heater and/or complete failure of individual components.

Zodiac Pool Systems LLC does not warrant heat exchangers damaged by corrosive water issues or from the build-up of calcium in the heater's heat exchanger. Any questions regarding proper water balance can be directed to our product support line at Zodiac® or to your local pool dealer.

NOTE: The Thermal Regulator Valve (TRV) is an indicator of how well the water balance is being maintained. The TRV should be inspected before each pool season to ensure it is clean and operating properly. If you see signs of calcium buildup (scale-forming or base water) or corrosion (acidic water) the TRV should be replaced and your water balanced.

9.2 Swimming Pool Energy Saving Tips

Please review the following recommendations to help conserve fuel and minimize the cost of operating your pool heater without sacrificing comfort.

• The American Red Cross ^ recommends a maximum water temperature of 78°F (26°C). Use an accurate pool thermometer. A difference of 4°F (2°C), between 78°F and 82°F (26°C and 28°C), will use as much as 40% more gas.
• Carefully monitor the water temperature of your pool in the summertime. You can reduce heater usage due to warmer air temperatures.
• Find the proper setting on the pool heater temperature control and use the Set Point Lockout feature to discourage further adjustments.
• Set the pump time clock to start the pump no earlier than 6:00 AM. This is the time when nightly heat loss balances.
• If the pool is only going to be used on weekends, reduce the heater temperature control setting by 8 or 10 degrees during the week. Reset it to the 78°F (26°C) level a day or so before you plan to use the pool.
• During the winter or when on vacation for longer than a week, shut down the heater by following the shutdown instructions found in Section 8.6, Performing Seasonal Shutdown and Figure 23 and on the inside of the heater.
• Where possible, shelter the pool from prevailing winds with well-trimmed hedges or other landscaping, cabanas, or fencing.
• The greatest source of heat loss in a swimming pool is through evaporation. It can account for 50% of pool systems total heat loss. The use of solar blankets, automatic covers or anything that limits the air's access to the surface of the water will help reduce this heat loss and minimize evaporation.

9.3 Winterizing

In areas where freezing temperatures occur in winter and the pool or spa will not be used, the pool should be winterized by a qualified pool service technician:

- Turn off the electrical supply and the main gas supply to the heater.

- Remove the heater access panel.

• Turn off gas supply to the heater following the shut-down instructions. See Section 8.6, Performing Seasonal Shutdown and Figure 23.
• Remove the drain plug from the inlet/outlet header and completely drain the heater before the first frost. See Section 5.5.1, Install Pressure Relief Valve Kit R0336101 step "a".
• Inspect the gasket on the drain plug. Store the drain plug in a safe place for winter.
• Cover the exhaust vent grill with plastic so that snow will not accumulate and freeze on top of the combustion chamber.
• Remove and drain the copper tubing (siphon loop) for the water pressure switch.

Figure 25. Water Pressure Switch Copper Tubing (Siphon Tube)

9.4 Spring Startup

When winterized, the heater should be reassembled by a qualified professional technician in the Spring.

• Reinstall the drain plug.
  • Uncover the vent grill.
• Reattach copper tubing to water pressure switch.
• Make sure power is supplied to the pump.
• Turn on the fi lter pump and circulate water through the heater for 5 minutes. Check for leaks while circulating.
• Turn on the main gas supply to the heater at the gas valve outside the heater jacket.
• Turn on the heater according to Section 8.4, Normal Operation and Figure 23.

9.5 Inspection and Service

WARNING

Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury, or death.

WARNING

For your safety, when starting the heater, keep your head and face away from any exhaust or inlet grill openings to prevent any risk of personal injury. Make sure all doors/panels are securely in place and stand back from the heater.

The heater is designed and constructed to provide long performance life when installed and operated properly under normal conditions. Periodic inspections, especially at spring start-up, are important to keep your heater running safely and efficiently through the years. Zodiac Pool Systems LLC recommends that the homeowner inspect the heater on a regular basis (especially after abnormal weather conditions), and arrange to have a professional inspection at least once a year by a qualified service technician.

9.5.1 Guidelines for Homeowner Inspections

WARNING

Do not store or use gasoline or other fl ammable vapors, liquids or chemicals in the vicinity of this or any other appliance.
Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and replace any part of the control system and any gas control which has been under water.
To Reduce the Risk of Fire, install pool equipment in an area where leaves or other debris will not collect on or around the equipment. Keep surrounding area clear of all debris such as paper, leaves, pine-needles and other combustible materials.

• Ensure the top of the heater, under the heater, and surrounding area clear of all debris and combustible materials such as paper, leaves, etc.
• If there is a pressure relief valve, check for corrosion in and around the valve. If there is corrosion, contact a pool professional for replacement of the pressure relief valve.
• Once a year check that water is running freely through the pressure relief valve. To check, turn on the fi Iter pump and lift the release lever on the top of the valve.
• Be sure combustion air and ventilation openings are not blocked.

9.5.2 Guidelines for Professional Inspection

The following inspections should be made once a year or as needed. Routine inspections are a critical to the safety and long life of your Jandy pool equipment.

• Check for loose or broken wires and terminal connections.
• Check the water pressure switch by turning the filter pump off and on several times. The burner should go off immediately after the pump stops. The fan will run for 45 seconds after the burner shuts down.

CAUTION

If the heater is wired serially to or on the same relay as the fi lter pump, there is a chance that power will be disconnected to the heater before the fan is able to fully purge the combustion chamber. It is inadvisable to install the heater in a manner which would prevent this combustion chamber purge from taking place.

• An ignition sequence should start shortly after the pump is turned back on.
• Inspect the thermal regulator valve (TRV).

- Inspect the electrical controls, specifically:

• High limit switches
  – Water pressure switch
• Automatic gas valve
  – Power interface/Temperature control
• Flue temperature sensor
• Control circuit fuse
• Ignition control

• Air pressure switch

• Inspect the inlet grill at the blower for blockage, leakage, and corrosion.

• Inspect the combustion blower for damage.
• Conduct a normal operating cycle and observe that the sequence proceeds as intended.
• If the heater is equipped with a pressure relief valve, clean any accumulated corrosion and make sure that water runs freely when lever is lifted.
• Inspect combustion chamber and blower exterior for corrosion and indication of improper operation.
• Inspect electrical controls for deterioration. Repair and replace as necessary.
• Visually check the main burner flame. Remove the top of the heater to inspect the sight glass. See Figure 26.

Technical diagram of a mechanical assembly with labeled components, showing internal components and a magnified inset (no readable text or symbols)

View With Heater Top Panel Removed
Figure 26. Remove Heater Top to View Sight Glass

Section 10. Troubleshooting

10.1 Common Problems

Zodiac Pool Systems LLC strongly recommends that you call a qualified service technician to perform all service and repairs on the heater. To locate a licensed or qualified technician service company, call Jandy Technical Support at 1.800.822.7933, or visit www.jandy.com.

The following table lists some of the most common problems when running the heater. Most problems occur when the heater is started for the first time after installation or at spring start-up.

Symptom Possible Cause Remedy
Pump not operating No power.	Pump defective.Incorrectly wired.Time clock settings not synchronized with actual time.	Check circuit breakers and power source.Replace the pump.Recheck wiring.Check time clock setting.
Unstable combustion(1) heater turns off and on(2) heater ignites slowly(3) flame lifts and goes out(4) short yellow streaked flame	Wrong gas.Lean fuel/air mixture — low supply pressure.Lean fuel/air mixture — too much combustion air.Rich fuel/air mixture — high manifold pressure.Rich fuel/air mixture — too little combustion air.	Make sure the gas supply matches the gas type indicated on the rating plate.Correct gas supply inlet pressure to:-(NATURAL GAS) 4.0 in W.C. min - 10.5 in W.C. max-(PROPANE) 4.0 in W.C. min - 14.0 in W.C. maxOffset pressure should be -0.2 in W.C. Use a digital differential manometer to verify correct offset pressure. Adjust offset pressure as needed.Connect a digital differential manometer to blower throat and gas valve port to obtain differential. Make sure the differential value falls within the specified range for the heater size.Gas meter too small.Gas line from meter to heater too small.Check blower inlet grill for obstruction.
Not enough heat(1) heater is slow to heat up(2) heater not maintaining set temperature(3) Low temperature rise	Heater size inadequate.Filter pump not running long enough.Thermal regulator valve (TRV) is opening early or is permanently open.Heater plumbed backwards.	Replace with heater of higher output.Replace TRV.Heater is condensing. Flue product moisture will condense at the start-up until the heater water temperature reaches the normal operating conditions.Correct the plumbing.
Heater pounding or knocking Water flow through heater too low.	Failed Thermal Regulating Valve (TRV).	Look for obstruction or closed valve in system.Check for damaged internal bypass.Variable speed pump set too lowDirty filter or baskets
Igniter lights but heater does not fire	Gas valve is not ON.Air in gas line.No power to gas valve.Low gas pressure/volume.High burner throat pressure.Gas valve failed.	Flip the switch to “on” position.Cycle ignition sequence until air is out of the gas line.Check controls for proper operation.Check supply pressure/volume and verify proper gas supply pipe size.Replace gas valve.NOTE: Gas valve failures are extremely rare. Please confirm this as the root problem before replacing.

10.2 Service Diagnostic Messages

The controller monitors several functions of the heater. In the event of a malfunction, the controller will display a FAULT message. The following table lists the Heater Service Messages along with potential causes and remedies.

Fault Message Possible	Cause Remedy
CHECK FLOW Pump is not running.	Low pump pressure.Pressure switch fault.Variable speed pump set too low.	Check breakers and power source, recheck wiring, set time clock and current time.Clean filter or clear blockage, check position of valve in plumbing system.Make sure return eyeball fittings are installed on the wall of the pool.Adjust or replace pressure switch.Adjust variable speed pump.Refer to qualified service personnel.
FAULT-HIGH LIMIT	Water temperature in heater exceeds the internal limit.Limit switch fault.	Inspect vent for obstructions or blockages.Indoor installations, check vent pipe for bird, insect or rodent activity that could cause a blockage.Replace switches.Refer to qualified service personnel.
FAULT - HIGH FLUE TEMPERATURE	Flue temp limit fault Contact a service professional to review fault condition.Identify and correct loose connections.Replace flue sensor.Refer to qualified service personnel.
FAULT-CHECK IGN CONTROL	Broken, split, pinched or disconnected air pressure switch tubing.Fan not operating.Fan running slowPremature fan failure.Air flow restricted at intake or discharge.Broken igniter.Low gas supply pressure/volume.No flame at burner.	Check tubing and replace if necessary.Correct fault or replace fan.Replace igniter.Verify proper wiring for 120 VAC or 240 VAC.Check for proper clearances around heater and for adequate room ventilation if enclosed. Inspect for blockage or restriction at discharge of flue.Check ignition control LED codes (see Section 10.3, Ignition Control LED Service Codes).Verify that the size, length and number of elbows on the gas supply line meet national codes.Identify and correct loose wiring connections, or problems with igniter, gas valve, or ignition control.Refer to qualified service personnel.
FAULT-SHORTED H2O SENSOR or FAULT-OPEN WATER SENSOR	Faulty wiring or connection.Failured water temperature sensor.	Inspect water temperature sensor wiring.Ensure sensor is connected correctly into the power interface board (PIB).Replace water temperature sensor.Refer to qualified service personnel.
FAULT-PUMP	Status message indicating the filter pump is currently turned OFF when the heater system programmed in Maintain Temp mode.	No Service Required. This is normal when the control is in a Maintain Temp mode.
AUX Monitor Check VersaFlo

10.3 Ignition Control LED Service Codes

In addition to service diagnostic messages, the ignition controller has an LED light that flashes to indicate various ignition control faults. The table below lists the LED codes and the corresponding fault description. To diagnose possible cause and remedy, refer to Section 10.2, Service Diagnostic Messages.

LED Code Fault Description
The LED light is on continuously. Ignition Control Fault. Refer to qualified service personnel.
LED single flash. Air flow fault.
LED double flash. Flame exists when there is NO call for heat. Refer to qualified service personnel.
LED triple flash.	Ignition lockout (heater has made three (3) unsuccessful attempts to fire and is in a soft lockout condition).

Section 11. Professional Service and Maintenance

Call a qualified service technician to perform all service and repairs on the heater. To locate a licensed or qualified technician or independent service company in your area, contact Zodiac Technical Support at:

1.800.822.7933

www.jandy.com

Before servicing the heater:

- Confirm that the heater control is set to either POOL or SPA

- Confirm the temperature set point for either Pool or Spa is set high enough to make the heater operate given the current water temperature.

WARNING

SERVICING SAFETY

Service procedures can be hazardous because they involve fuel gas, electricity, moving parts and procedures which require testing or temporary bypass of safety controls. For this reason, the heater must be serviced only by a qualified professional service technician.

IMPROPER SERVICE HAZARD

The heater incorporates unique design features. Incorrect service of this heater can result in personal injury or damage to property. To avoid such hazards, the heater must be serviced only by a qualified professional service technician.

11.1 Header Bypass Reassembly Recommendations

If you need to remove the access cover or the VersaFlo housing from the header, use the following torque process to re-install them to the header. Start each screw by hand and then follow the torque pattern detailed below.

Figure 27. Header Bypass Reassembly Torque Pattern

Section 12. Spare Parts

Using genuine Zodiac factory replacement parts helps to ensure the ongoing quality and reliability of our products.

Unauthentic parts might seem okay on the surface, but they often fall short of factory standards, and they typically lack the backing you get from an established, global manufacturer like Zodiac. Plus, the use of unauthentic parts voids all factory warranties.

Zodiac does not sell parts directly to pool owners, so when it's time for maintenance, please see your local Preferred Professional Provider (PPP) of genuine parts. You can find a PPP at www.zodiacpoolsystems.com/parts.

NOTE: To identify the correct part, you will need to know the model number, serial number and type of gas when applicable. This information can be found on the rating plate sticker, which is located inside the heater on the outside of the combustion chamber.

12.1 Major Components

Figure 28. Heater Major Components

12.2 Cabinet Assembly Spare Parts List and Exploded Parts Diagram

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

Key No Description Model 200 Model 260 Model 400
1 Heater	Jacket Top Kit (no User Interface) R0592400 R0592400 R0592400
2 Corner	Post Kit, Left/Right (set of 2) R0592500 R0592500 R0592500
3 Heater	Base Kit R0592600 R0592600 R0592600
4	Front or Back Panel Kit	R0592700 R0592700 R0592700
5 Side Panel Kit*	R0592900 R0592900 R0592900
6	Vent Terminal Housing Kit	R0593100 R0593100 R0593100
7	Jacket Hardware Kit	R0593300 R0593300 R0593300
8	Anchor Brackets Kit (set of 4)	R0593400 R0593400 R0593400
9	Jacket Hole Plug Kit	R0591800 R0591800 R0591800
10**	Complete Replacement Box Packaging Kit	R0593600	R0593600	R0593600

*Includes: Exhaust side panel, top panel closure, anti rotation bracket and access door. Header side panel LH, Header side panel RH.
** Not Shown

Figure 29. Cabinet Assembly Components

12.3 Heat System Spare Parts List and Exploded Parts Diagram

The following JXi Models are equipped with a Cupronickel (CuNi) heat exchanger:

• JXI260NN • JXI400NN • JXI260PN • JXI400PN

12.3.1 Combustion Chamber Assembly

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

Key No	Description Model 200 Model 260	Model 260 CuNi	Model 400 Model 400 CuNi
1	Exhaust Elbow Assembly Kit	R0590200	R0590200	R0590200	R0590200
2	Band Clamp Kit	R0590400	R0590400	R0590400	R0590400
3	Refractory Kit, Internal	R0590500	R0590500	R0590500	R0590500
4	Combustion Chamber Shelf (set of 2: Models 200, 260)	R0590700	R0590700	R0590700	N/A
5	Combustion Chamber Lid Kit	R0590800	R0590800	R0590800	R0590800
6	Gasket Kit	R0590900	R0590900	R0590900	R0590900
7	Sight Glass Kit	R0305400	R0305400	R0305400	R0305400
8	Igniter Kit	R0457502	R0457502	R0457502	R0457502
9	Insulation Kit, External	R0591000	R0591000	R0591000	R0591000
10	Isolator Kit (Thermal)	R0593200	R0593200	R0593200	R0593200
11	Heat Exchange Assembly	R0589402	R0589403	R0746903	R0589405
12	Combustion Chamber Assembly (Includes Header)	N/A	R0805803	N/A	R0805805

Figure 30. Combustion Chamber Components

12.3.2 Burner Assembly

Key No Description		Model 200 Model 260 Model 400
		*N **LP	N LP N LP
1 Blower Assembly Kit R0591100 R0591200 R0591200 R0591200 R0591200 R0591200		100 R0591100	R0591100 R0591100 R0591100
2 Air Intake Grate Kit R0591200 R0591200 R0591200 R0591200 R0591200		200 R0591200	R0591200 R0591200 R0591200
3 Blower Intake Orifice Kit R0591302 R0591312 R0591303 R0591313 R0591305 R0591315
4	Fuel Orifice Kit	R0591601	R0591605	R0591602	R0591606	R0591604	R0591608
5	Gas Valve	R0591400	R0591400	R0591400	R0591400	R0591400	R0591400
6	Burner Kit	R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R0591702 R059
7	Capacitor Kit R0614500	R0614500 R0614500 R0614500 R0614500 R0614500

* N - Natural Gas

**LP - Liquid Propane

Figure 31. Burner Components

12.4 Water System Spare Parts List and Exploded Parts Diagram

For ASME heater models JXi400NC, JXi400PC, JXi260NC and JXi260PC please go to Section 13, Appendix A. ASME Header.

Key No	Description Model 200 Model 260 Model 400
1	Access Door Kit (with O-Ring Seal and Screws) R0589600 R0589600 R0589600
1a VersaFlo Bypass (Optional Accessory) JXIVFKIT JXIVFKIT JXIVFKIT
2 Thermal Regulator Valve Kit (TRV) R0589700 R0589700 R0589700
3	Bypass Kit	R0589800 R0589800 R0589800
4	Drain Plug Kit R0446000 R0446000 R0446000
5	Gasket and Seals Kit	R0589500 R0589500 R0589500
6	Manifold Backplate Kit	R0590002 R0590003 R0590005
7	Manifold, 3 Port (no backplate included; must order separately)	R0590100 R0590100 R0590100
8	Water Pressure Switch Kit	R0457001 R0457001 R0457001
9	Goody Bag Kit†	R0593500 R0593500 R0593500
10	Universal Half Union Kit(1 Ea, requires 2 kits for full unit replacement)	R0522900 R0522900 R0522900
11	Sweep Elbow AquaLink® Temp Sensor	SEAQL1001	SEAQL1001	SEAQL1001
12	Drain Cap Assembly Kit	R0523000 R0523000 R0523000
13	Pressure Relief Valve (PRV) Install Kit	R0336101	R0336101	R0336101
14	Flow Plate Assembly	R0725201	R0725202	R0725203

† Goody Bag Kit Also Includes the Installation and Operation Manual and the Universal Controller Quick Guide

Figure 32. Water System Components

12.5 Electrical System Spare Parts List and Exploded Parts Diagram

Key No*	Description Model 200 Model 260 Model 400
1 Ignition	Control Kit R0456900 R0456900 R0456900
2 Transformer Kit R0456301 R0456301 R0456301
3 User Interface Kit R0591901 R0591901 R0591901
4 User Interface Lid Kit R0592000 R0592000 R0592000
5 Wiring Harness Kit R0592100 R0592100 R0592100
6 Air Pressure Switch Kit	R0456400 R0456400 R0456400
7 Flue Temp Sensor§ R0719400 R0719400 R0719400
7a	Fusible Link†	R0524300 R0524300 R0524300
8	Water Pressure Switch Kit	R0013203 R0013203 R0013203
9	Power Interface Board (PIB)§	R0719500 R0719500 R0719500
	Power Interface Board (PIB)‡	R0458200 R0458200 R0458200
10	Power Distribution Board (PDB)	R0458100 R0458100 R0458100
11	Temperature Sensor Kit	R0456500 R0456500 R0456500
12	High Limit Temperature Sensors Kit	R0592300 R0592300 R0592300
13	Igniter Kit	R0457502 R0457502 R0457502
14	Power Interface Harness	R0457701 R0457701 R0457701

† Fusible Link to replace factory installed fusible link on heaters with serial number revision G or earlier.
‡ PIB to replace factory installed PIB on heaters with serial number revision G or earlier.

Upgraded components R0719400 and R0719500 must both be installed for heater to operate properly.

§ Flue Temp Sensor and PIB must be replaced together in Rev G and earlier heaters. Both parts are required in order to install the VersaFlo™ Bypass accessory PN: JXIVFKIT.

Figure 33. Electrical System Components

Section 13. Appendix A. ASME Header

Please use the information below for the following ASME heater Models, JXi400NC, JXi400NS, JXi400PC, JXi400PS, JXi260NC, JXi260NS, JXi260PC and JXi260PS. The corresponding sections from the manual are cross referenced with page numbers at the beginning of each section.

13.1 Dimensions

(From Section 1.6, Dimensions)

Figure 34. General Dimensions

13.2 Package Contents

(From Section 2.1, Package Contents)

Before completely unpacking the unit please inspect carton for damage. In addition, please check the carton label to ensure that you have the correct fuel type and BTU rating for your application.

Included with this heater is a 75 psi pressure relief valve that can be used as an option. Instructions for the pressure relief valve installation are shown in Section 5.5.1, Install Pressure Relief Valve Kit R0336101.

Figure 35. Carton Label BTU, Fuel Type, and Serial Number

Item Description Qty.
1 JXi Heater 1
2 Connector Flange 2
3 2" Sleeve 2
4 2" Gasket 2
5 Flange Bolt 4
6 Flange Washer 4
7	75 psi Pressure Relief Valve Kit	1

13.3 Pump Sizing

(from Section 5.1, Pump Sizing)

All JXi heaters utilize an internal bypass mechanism and thermal regulator valve (TRV) to accommodate flow rates delivered to the heater from a minimum of 30 gallons per minute (gpm) to a maximum flow of 100 gpm.

CAUTION

The system water pump must be capable of providing no less than 30 gpm of flow through the heater. Flow rates at less than 30 gpm may cause nuisance operation causing damage to the heater or causing the heater to turn off.

Model	Min gpm (lpm)	Max gpm (lpm)
JXi 260	30 (114)	100 (379)
JXi 400	30 (114)	100 (379)

Table 9. Recommended Flow Rate Adjustment

Figure 36. Pressure Relief Valve Components

Figure 37. Head Loss Chart

13.3.1 Water Inlet Piping

(from Section 5.2.2, Water Inlet Plumbing)

Check flow rates as outlined in Section 5.1, Pump Sizing and if necessary make provisions for and ensure sufficient space for the installation of a manual bypass valve as outlined in Section 5.1.1, Manual Bypass Valve.

The side inlet is positioned at a 10 1/8 in (255.7 cm) center height providing an ideal height for replacement unit or new construction plumbing.

• Turn off all power to the heater at the breaker.
• Turn off main gas supply to heater.

• Make sure the pump is off and will remain off for the duration of the procedure.

• Do a dry fit test of cut pipe lengths in order to ensure proper alignment.
  • Pass the 2" Sleeve through the 2" gasket.

• Seat the gasket and sleeve into the connector fl ange.
• Secure the connector fl ange to the header using the fl ange bolts and washers. Make sure that the gasket is properly seated at the header.
  • Install 2" threaded pipe into the connector fl ange.
• Repeat the above steps for the manifold outlet. Again paying special care to ensure proper seating of the gasket.

NOTE: When connecting CPVC pipe to the metal receptacle Zodiac Pool Systems LLC recommends LA-CO® PLASTO-JOINT STIK® joint Compound.

Figure 38. 2" Threaded Inlet Pipe

• Return all valves to their operating positions.
• Restore power to the heater at the breaker.
• Turn on pump and inspect carefully for leaks.
• Restore main gas supply.
• Start the system and check for proper flow.
• Return heater to normal operation.

WARNING
	To avoid an electrical shock hazard, which can result in serious injury or death, ensure that all electrical power to the system is turned off before approaching, inspecting or troubleshooting any leaking valves or plumbing that may have caused other electrical devices in the surrounding area to get wet.

WARNING
	Follow all fi lter manufacturer's instructions. Never attempt to assemble, dis as sem ble or adjust the fi lter when there is pressurized air in the system. Starting the pump while there is any pressurized air in the system can cause the fi lter lid to be blown off, which can cause death, serious personal injury or property damage.

13.3.2 Install Pressure Relief Valve Kit #R0336102

Please double check that you have all necessary parts to complete the installation. If any parts are missing or damaged please call 1.800.822.7933 for assistance.

Figure 39. Pressure Relief Valve Kit Components

Item Description		Bronze Header
1	Pressure Relief Valve 3/4" X 3/4" 75 PSI	X
2 Brass Nipple 3/4" X
3 Elbow 90° 3/4" NPT Brass X
4 Teflon Tape X

Prior to installing or replacing this pressure relieve valve (PRV), ensure the following steps have been completed.

• Turn off the electrical power to the heater.
• Turn off the main gas supply to the heater.
• If the heater has been operating, ensure you allow enough time for remaining water in the heat exchanger to cool down before beginning. It is recommended that protective gloves be worn during the entire procedure.
• Make sure the filter pump is off and will remain off for the duration of the installation procedure.
• If the heater is below the surface level of the water in the pool or spa, close all shut-off valves between the heater and the pool.

Figure 40. Remove Drain Plug

a. Remove drain plug from header and allow all water to drain from heat exchanger.
b. Remove the port plug on Thermal Regulating Valve access plate.
c. Each male connection should be first wrapped in 5-6 turns of Teflon™ tape.
d. Assemble the 3/4" threaded nipple and elbow. Make sure to get a sung fit. Do not overtighten.

e. Install the nipple and elbow assembly at the access plate port.

Figure 41. Install the Elbow

f. Install the pressure relief valve. Make sure to get a sung fit. Do not overtighten.
The final orientation of the pressure relief valve should be vertically aligned with the discharge opening facing away from the heater header.
g. Install a discharge pipe from the pressure relief valve discharge opening to a safe area. This is a precaution to prevent the possibility of personal injury or property damage in the event scalding water is discharged from the pressure relief valve.
h. Install the discharge pipe so that there is no trapped or standing water in the piping. Discharge piping must be facing down, terminating with a threadless nipple, no more than 6 in (152 mm) and no less than twice the diameter of the discharge pipe from the floor or drain/receptor.

Figure 42. Install the Discharge Pipe

To ensure the continued proper operation of the pressure relief valve, the valve should be tested once a year. To test, lift the lever with the circulation system running to ensure that water will pass through. When the lever is down, there should be no leaks from the outlet.

13.4 Cabinet Assembly Spare Parts List and Exploded Parts Diagram

(From Section 12.2, Cabinet Assembly Spare Parts List and Exploded Parts Diagram)

Key No Description Model 260 Model 400
1 Heater Jacket Top Kit (no User Interface) R0592400 R0592400
2 Corner Post Kit, Left/Right (set of 2) R0592500 R0592500
3 Heater Base Kit R0592600 R0592600
4	Front or Back Panel Kit	R0592700 R0592700
5*	Side Panel Kit	R0821000 R0821000
6	Vent Terminal Housing Kit	R0593100 R0593100
7	Jacket Hardware Kit	R0593300 R0593300
8	Anchor Brackets Kit (set of 4)	R0593400 R0593400
9	Jacket Hole Plug Kit	R0591800 R0591800
10**	Complete Replacement Box Packaging Kit R0593600	R0593600
*Includes: Exhaust side panel, top panel closure, anti rotation bracket and access door. Header side panel LH, Header side panel RH. **Not Shown in Exploded View

Figure 43. ASME Cabinet Assembly Components

13.4.1 Combustion Chamber Assembly

(From Section 12.3.1, Combustion Chamber Assembly)

Key No Description Model 260 Model 400
1 Exhaust Elbow Assembly Kit R0590200 R0590200
2 Band Clamp Kit R0590400 R0590400
3 Refractory Kit, Internal R0590500 R0590500
4	Combustion Chamber Shelf (set of 2: Models 200, 260)	R0590700	N/A
5 Combustion Chamber Lid Kit R0590800 R0590800
6	Gasket Kit	R0590900 R0590900
7 Sight Glass Kit R0305400 R0305400
8	Igniter Kit	R0457502 R0457502
9 Insulation Kit, External R0591000 R0591000
10 Isolator Kit (Thermal) R0593200 R0593200
11	Combustion Chamber Assembly (Includes Header)	R0810203 R0810205
11a	Combustion Chamber Assembly, ASME CuNi versions (Includes Header)	R0961000	R0961001
12	Heat Exchanger Kit R0828700 R0828701
12a	Heat Exchanger Kit, ASME CuNi versions	R0961100 R0961101

Figure 44. ASME Combustion Chamber Components

13.5 Water System Spare Parts List and Exploded Parts Diagram

(From Section 12.4, Water System Spare Parts List and Exploded Parts Diagram)

Key No Description Model 260 Model 400
1 Thermal	Regulator Valve Access Plate Kit R0820400 R0820400
2 Thermal	Regulator Valve Kit (TRV) R0589700 R0589700
3 Thermal	Regulator Valve Retainer Kit R0820500 R0820500
4 Bypass	Kit R0589800 R0589800
5 Drain Plug Kit	R0820600 R0820600
6 Gasket and Seals Kit	R0820700 R0820700
7 Header	Backplate Kit R0828403 R0828405
8	Header, 2 Port (no backplate included; must order separately)	R0820800	R0820800
9	Water Pressure Switch Kit	R0828501 R0828501
10	Pressure Relief Valve (PRV) Install Kit R0336102	R0336102
11	Flow Plate Assembly	R0828602	R0828603
12	Connector Flange Kit R0461500	R0461500
13	Connector Flange Hardware	R0477800	R0477800
14*	Goody Bag Kit (Goody Bag Kit Includes the Installation and Operation Manual and the Universal Controller Quick Guide)	R0820900	R0820900
*Not Shown in Exploded View

Figure 45. ASME Water System Components

NOTES

NOTES