RSEP1S25N - Water heater Rinnai - Free user manual and instructions

USER MANUAL RSEP1S25N Rinnai

Technical line drawing of a rectangular industrial ventilation duct with cooling fins and ventilation grilles (no text or symbols)

Super High-Efficiency (SE+) Series Infrared Gas Heater

Installation and Operation Manual

Rinnai®

All models approved:

■ ANSI Z83.26-2014 / CSA 2.37-2014
■ Gas-Fired Infrared Patio Heater for Outdoor Commercial / Residential Application
■ ANSI Z83.19a-2011 / CSA 2.35a-2011
■ Gas-Fired High Intensity Infrared Heater for Commercial /Industrial Non-Residential Application for either indoor or outdoor installation

NOTICE:

Rinnai reserves the right to make changes to equipment and specifications without obligation or notification. This publication, or parts thereof, may not be reproduced in any form, without prior written consent from Rinnai. Unauthorized use or distribution of this publication is strictly prohibited.

All models constructed with Marine Grade Stainless Steel Cabinet

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.

Read the installation and operating and maintenance instructions thoroughly before installing or servicing this equipment.

SAFETY ALERT:

This heater must be installed and serviced only by a trained gas service technician. Failure to comply could result in personal injury, death, fire and/or property damage.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other gas fired appliance.

Indoor Applications: The heater cannot be used indoors in a residence.

IF YOU SMELL GAS:

■ Extinguish any open flame
■ Do not attempt to light this or any other appliance
- Don’t touch any electrical switch, or telephone
- Immediately leave the area and call your gas supplier from a neighbor's phone
■ Follow any and all instruction from your gas supplier
■ If your gas supplier is not available, call the fire department

FIELD CONVERTIBILITY:

This appliance is field convertible to LP gas (except RSEP2S50N: NG only).

Only use kit available from Rinnai.

Follow kit instructions and all local and national codes.

INSTALLER: PRESENT THIS MANUAL TO THE END USER.

Keep this manual in a secure place.

Record for future reference:

Model #:

Serial #:

(located on heater rating label)

GAS-FIRED

Gas-fired Infrared Patio Heater for Outdoor Commercial / Residential Application, and Gas-Fired Luminous (High Intensity) Infrared Heater for Commercial / Industrial Non-Residential Application for either indoor or outdoor installation

TABLE OF CONTENTS

TOPIC

PAGE NUMBER

IMPORTANT INFORMATION - READ FIRST

IMPORTANT WARNINGS....4

HEATER EXPANSION 5

GAS CONNECTION....5

VENTING 5,13

MOUNTING & CLEARANCE DISTANCES: OUTDOOR PATIO INSTALLATION ....6 INDOOR INSTALLATION ....9

1. APPLICATION 11

OUTDOOR / PATIO....11

INDOOR INSTALLATION 11

1. AIRCRAFT HANGARS....12

2. GARAGES & PARKING STRUCTURES...... 12

3. OTHER THAN SPACE HEATING....12

4. PRE-INSTALLATION SURVEY 12

5. INSTALLATION REQUIREMENTS....13

6.1 MOUNTING CLEARANCES ..... 13

6.2 HEATER MOUNTING....13

1. GAS SUPPLY PIPING....14

7.1 GAS PRESSURE 14

TOPIC

PAGE NUMBER

1. ELECTRICAL - BASIC REQUIREMENTS ..... 14

2. INSTALLATION PROCEDURES.... 15

3. LIGHTING INSTRUCTIONS.... 16

10.1 SHUT DOWN INSTRUCTIONS ..... 16

1. HEATER FINISH & APPEARANCE 16

2. SERVICING GUIDE...... 17

3. VENTILATION FOR INDOOR APP'S .... 19

4. DIMENSIONS & CONFIGURATION....20

5. MOUNTING KIT OPTIONS....21

6. ELECTRICAL REQUIREMENTS.... 24

16.1 CONTROL OPTIONS....24

1. SEQUENCE OF OPERATION-FENWAL 35-60 DSI....25

2. SPARK IGNITION CIRCUIT 26

3. WIRING DIAGRAM....27

4. TROUBLESHOOTING GUIDE ...... 30

5. COMMISSIONING REPORT 32

6. HIGH ALTITUDE INSTALLATION 34

7. REPLACEMENT PARTS LIST.... .35 - 36

IMPORTANT

Installer: Present this manual to the end user. Acquaint the end user with Important Information: Cover & pages 4 to 10.

END USER: In particular you must be aware of 'Clearances to Combustible' requirements and the limitations of stacking or placing material near the heaters.

Inform your safety personnel and staff of this information.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read and understand this installation and operation manual thoroughly prior to assembly, installation, operation or service to this appliance.

This heater must be installed and serviced only by a trained gas service technician.

Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other gas fired appliance.

Failure to comply to these warnings could result in personal injury, death, fire and/or property damage.

This appliance may have sharp edges and corners. Wear protective clothing such as gloves and protective eye wear when servicing this or any other appliance.

California Proposition 65:

WARNING: This product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

WARNING

DO NOT INSTALL THIS APPLIANCE IN A RECESS, ALCOVE, OR ENCLOSURE.

While minimum clearances to combustibles are stipulated to ensure safe installation, adequate free space must be provided to allow the products of combustion to escape from the heater to atmosphere when installed outdoors, or through mechanical exhaust withdrawal when installed indoors. Also refer to “Outdoor” and “Indoor” definitions and requirements on page 11. Do not allow the products of combustion to accumulate in any space or enclosure.

WARNING

Due to the effects of radiant heat upon certain materials it is not recommended to store or place items that could be damaged or

distorted, directly under this heater....i.e. combustible patio furniture etc.

• Clothing or other flammable materials should not be hung from, or placed near to the heater
- Children and Adults should be alerted to the hazards of high surface temperatures and should be careful to avoid burns or clothing ignition
• Young children should be carefully supervised when in the area of a heater

WARNING

This heater is not for installation in a Class 1 or Class 2 explosive environment, nor for any residential application. If installa-

tion of this equipment is in question, consult with local authorities having jurisdiction (Fire Marshal, labor department, insurance underwriter, or others).

Revisions to codes and/or standards, may require revision to equipment and installation procedures. In case of discrepancy, the latest codes, standards, and installation manual will take priority over prior releases.

IMPORTANT: DO NOT INSTALL THIS HEATER INDOORS IN A STRUCTURE WITH NO INSULATION IN THE ROOF—CONDENSATION WILL OCCUR.

WARNING

Heater Expansion

It is a normal condition that during heat-up and cool-down a radiant heater will expand and contract. Allowances for heater expansion must be made in the gas connection and heater suspension. Improper installation, alteration, or adjustment can result in property damage, injury or death.

WARNING

Gas Connection

Improper installation, connection, or adjustment can result in property damage, toxic gases, asphyxiation, injury or death. Use an approved stainless steel flexible gas connector (field supplied) to connect to the gas supply to the heater in accordance with all local,

state, provincial, and national codes (ANSI Z223.1/NFPA 54 in USA) and as indicated in this manual.

WARNING

Venting

Inadequate venting of a heater may result in asphyxiation, carbon monoxide poisoning, injury or death. When used indoors, this heater is indirectly vented from the space. Venting must be in accordance with all local, state, provincial, and national codes (ANSI Z223.1/

NFPA 54 in USA) and as indicated in this manual. Refer to Page 19

WARNING

Start-up 'Smoke' & Discoloration Condition

During start-up, the heating of material coatings used in the production process of the heater

WHEN INSTALLED AS AN OUTDOOR PATIO HEATER

• See pages 9 - 10 for Indoor installation, and Ventilation Requirements page 19
- Also refer to "Outdoor" and "Indoor" definitions and requirements on page 11

WARNING

Certain materials or items, when stored under the heater, will be subjected to radiant heat and could be seriously damaged.

Location of flammable or explosive objects, liquids or vapors close to the heater may cause fire or explosion and result in property damage, injury or death. Do not use, store or locate flammable or explosive objects, liquids or vapors in proximity of the heater.

The clearance to combustible material represents the minimum distance that must be maintained between the outer heater surface and a nearby surface. The stated clearance to combustibles represents a surface temperature of 117^ ( 65^ ) above ambient temperature when installed outdoors.

It is the installer's responsibility to ensure that building materials with a low heat tolerance which may degrade at lower temperatures are protected to prevent degradation. Examples of low heat tolerance materials include vinyl siding, fabrics, some plastics, filmy materials, etc.

It is beyond the scope of these instructions to consider all conditions that may be encountered. Consult local authorities such as the Fire Marshall, insurance carrier, or safety authorities if you are uncertain as to the safety or applicability of the proposed installation.

Refer to Table 1 & Figure 1 Next Page for the minimum mounting and clearances to combustibles for Outdoor Patio application.

Figure 1: OUTDOOR - MINIMUM CLEARANCES (Indoor Clearances Page 10)
NOTE: ANGLE MOUNT IS MAXIMUM 30° TO AVOID DAMAGE

Table 1: OUTDOOR - MINIMUM CLEARANCES TO COMBUSTIBLES

Application	MODEL NO	Horizontal		30° Angle			Under	Ends
		A	S	T	B	F	U	E
OUTDOOR	RSEP1S25X - NG/LPG	5.5"	7"	9.5"	1"	9.5"	48"	3"
OUTDOOR	RSEP1S35X - NG/LPG	7.5"	9"	9.5"	1.5"	21"	48"	5"
OUTDOOR	RSEP2S50N - NG Only	12"	28"	16"	10"	36"	60"	21"

See Table 2 Next Page for "Suggested Mounting Height for Comfort"
Note: Do not mount less than 8 ft [2438 mm] above floor. Do not store or place anything directly under heater

Table 2: SUGGESTED MOUNTING DISTANCES FOR COMFORT

MOUNTING PARAMETERS ***	MODEL RSEP1S25X 23,000 Btuh		MODEL RSEP1S35X 35,000 Btuh		MODEL RSEP2S50N 50,000/35,000 Btuh
A - Mounting angle	Horizontal	Max. 30^0	Horizontal	Max. 30^0	Horizontal	Max. 30^0
H - Suggested height above deck/floor	8' to 10'	8' to 10'	8' 6" to 11'	8' 6" to 11'	9' to 12'	9' to 12'
S - Side distance to patio edge	3' 6"	3' 6"	4' 0"	4' 0"	5' 0"	5' 0"
Y - Side distance between heaters	6' 0"	6' 0"	8' 0"	8' 0"	9' 0"	9' 0"
W - Distance effective coverage	6' 0"	7' 0"	7' 0"	8' 0"	8' 6"	9' 6"
Z - Front distance between heaters	12' 0"	14' 0"	14' 0"	16' 0"	17' 0"	19' 0"

Figure 2: MOUNTING PARAMETER DISTANCES

S Y C Y

*** Note: Mounting angles and distances are suggested to ensure comfort, and are subject to site and design conditions. If in doubt, please contact your Pinnai

WHEN INSTALLED INDOORS FOR COMFORT OR SPACE HEAT

• Also refer to "Outdoor" definition and requirements on page 11
  • And refer to Indoor Ventilation Requirements page 19

WARNING

Clearance to Combustibles

Location of flammable or explosive objects, liquids or vapors close to the heater may cause fire or explosion and result in property damage, injury or death. Do not use, store or locate flammable or explosive objects, liquids or vapors in proximity of the heater.

The clearance to combustible material represents the minimum distance that must be maintained between the outer heater surface and a nearby surface. The stated clearance to combustibles represents a surface temperature of 90^ ( 50^ ) above room temperature.

It is the installer's responsibility to ensure that building materials with a low heat tolerance which may degrade at lower temperatures are protected to prevent degradation. Examples of low heat tolerance materials include vinyl siding, fabrics, some plastics, filmy materials, etc.

In locations used for the storage of combustible materials, signs must be posted to specify the maximum permissible stacking height to maintain the required clearances from the heater to the combustibles. Such signs must either be posted adjacent to the heater thermostats or in the absence of such thermostats in a conspicuous location.

In addition to stored or stationary material, consideration must also be given to moveable objects such as cranes, vehicles, and overhead doors, and structural objects such as electrical and gas lines, electrical fixtures, and sprinkler heads.

Heaters must be located an appropriate distance from sprinkler heads. This distance may be greater than the certified clearance to combustibles. Check the temperature rating of the sprinkler heads and locate heaters at a safe distance - in some instances the sprinkler heads may need to be replaced by higher temperature heads.

It is beyond the scope of these instructions to consider all conditions that may be encountered.

Figure 3: INDOOR - MOUNTING CLEARANCES (Outdoor Clearances Page 7) NOTE: ANGLE MOUNT IS MAXIMUM 30° TO AVOID DAMAGE

HORIZONTAL INSTALLATION INSTALLATION AT 30° A S U E S T B F U E

Table 3: INDOOR - MINIMUM CLEARANCES TO COMBUSTIBLES

Application	MODEL NO	Horizontal		30° Angle			Under	Ends
		A	S	T	B	F	U	E
INDOOR	RSEP1S25X - NG/LPG	8"	10"	12.5"	2.5"	14"	60"	4"
INDOOR	RSEP1S35X - NG/LPG	10.5"	14.5"	12.5"	2.5"	26"	60"	6"
INDOOR	RSEP2S50N - NG Only	24"	33"	24"	24"	78"	78"	24"

The clearance to combustible material represents the minimum distance that must be maintained between the outer heater surface and a nearby surface. The stated clearance to combustibles represents a surface temperature of 90^ ( 50^ ) above indoor room temperature.

It is the installer's responsibility to ensure that building materials with a low heat tolerance

1. APPLICATION: All models are approved to ANSI Z83.26-2014 / CSA 2.37-2014 for heating of outdoor commercial / industrial / residential patios and areas, and are also approved to ANSI Z83.19a-2011 / CSA 2.35a-2011 for heating indoor and outdoor commercial / industrial / non-residential spaces.

It is beyond the scope of these instructions to consider all conditions that may be encountered. Installation in the USA must conform to all local and national code requirements including the current National Fuel Gas code ANSI Z223.1, and the National Electrical Code ANSI/NFPA No 70 (latest edition). In case of discrepancy due to revisions to standards and codes, the latest standards, codes, and installation manual are in effect and take priority.

DO NOT INSTALL THIS APPLIANCE IN A RECESS, ALCOVE, OR ENCLOSURE.

Adequate free space must be provided to allow the products of combustion to escape from the heater to atmosphere when installed outdoors, or to mechanical exhaust withdrawal when installed indoors. Also refer to "Outdoor" and "Indoor" definitions and requirements below.

Do not allow the products of combustion to accumulate in any space or enclosure.

OUTDOOR / PATIO Installation:

This heater is certified for use outdoors. Rinnai warrants that the heater will operate as designed for patio use in wind conditions up to 10 MPH. Higher wind speeds exceeding 10 MPH can adversely affect heater performance and human comfort conditions on the patio.

What is "Outdoor"?

An appliance approved for "outdoor use" may be installed with shelter no more inclusive than:

• With walls on all sides, but with no overhead cover, (overhead permanently open)
• Or Within a partial enclosure which includes an overhead cover and no more than two side walls. These side walls may be parallel, as in a breezeway, or at right angle to each other. The open sides must be permanently open
• Or Within a partial enclosure which includes an overhead cover and three side walls, as long as 30 percent or more of the horizontal periphery of the enclosure is permanently open.

If an “outdoor” condition is not met, this heater is approved for “indoor use”. Ventilation requirements of local codes apply. See “Indoor Installation” below.

“PROOF! ” ”

2. INSTALLATION IN COMMERCIAL AIRCRAFT HANGARS

Luminous (high intensity) radiant tube heaters are suitable for use in aircraft hangars when installed in accordance with the latest edition of the Standard for Aircraft Hangars, ANSI/NFPA No 409 in the USA.

A. A minimum clearance of 10 ft (3 m) above either the highest fuel storage compartment or the highest engine enclosure of the highest aircraft which may occupy the hangar. The clearance to the bottom of the heater shall be measured from the upper surface of either the fuel storage compartment or the engine enclosure, whichever is higher from the floor.
B. A minimum clearance of 8 ft (2.4 m) must be maintained from the bottom of the heater to the floor in other sections of the aircraft hangar, such as offices and shops, which communicate with areas for servicing or storage. Refer to Table 1 for proper mounting clearances to combustibles.
C. Heaters must be located so as to be protected from damage by aircraft and other objects, such as cranes and movable scaffolding.
D. Heaters must be located so as to be accessible for servicing and adjustment.

3. INSTALLATION IN COMMERCIAL GARAGES AND PARKING STRUCTURES

Luminous (high intensity) radiant heaters are suitable for use in commercial garages when installed in accordance with the latest edition of the Standard for Parking Structures, ANSI/NFPA 88A, or the Standard for Repair Garages, ANSI/NFPA No. 88B.

WARNING

An overhead heater shall be located to maintain the minimum distance to combustibles, as shown on the heater rating plate, from the heater to any vehicles parked below the heater.

Overhead heaters shall be installed at least 8 ft (2.4 m) above the floor.

overhead doors, etc), structural components, and sprinkler system heads. Consideration must also be given to ventilation fan placement (outdoor heaters do not require ventilation). Carefully survey the area to be heated, and for best results place heaters in the coldest area(s) and at sufficient spacing to provide uniform radiant heat coverage.

Installation must conform with all local, state, provincial and national code requirements including the current latest edition ANSI Z223.1 (NFPA 54) in the U.S.A. The latest edition Electrical Code ANSI/NFPA N0 70 in the U.S.A. must also be observed.

The heating system must have gas piping of the correct diameter, length, and arrangement to provide for and satisfy the total system input. A layout drawing is necessary to calculate properly sized gas supply piping.

6. INSTALLATION REQUIREMENTS

6.1 MOUNTING CLEARANCES

The SE+ Series Heaters must be mounted with minimum clearances to combustible materials. Refer to the introductory section "Clearance to Combustibles" pages 6 to 10 and to Table 1 and Figure 1 page 7 (Outdoor) or Table 3 and Figure 3 page 10 (Indoor).

THIS HEATER HAS HOT SURFACES: Minimum mounting height is to be no less than 87" above the floor / deck. Do not locate heater where patrons can come into contact with heater. Do not store or place items directly underneath heater. Maintain clearance to combustibles.

The heater must be located with respect to building construction and equipment so as to provide sufficient clearance and accessibility for servicing of burner and ignition control and cleaning. Provide adequate clearance around air openings into the combustion chamber.

6.2 HEATER MOUNTING

This heater must be rigidly mounted to prevent movement from wind force.

7. GAS SUPPLY PIPING

• All piping must be installed according to applicable local and national codes
• A listed flexible connector (field supplied) must be installed between the heater and gas supply piping. For outdoor installation the connector must be in compliance with ANSI Z21.75 / CSA 6.27. An optional 3/8" x 24" black finish flexible gas connector (part number 903000012 - approved Indoor/Outdoor) is available from Rinnai.
• A drip-pocket must be provided in the gas piping at the inlet connection
• Provide a 1/8" NPT plugged tapping, accessible for test gage connection, immediately upstream of the gas supply connection to the heater.
• On propane-fired units, a main line filter is recommended (field supplied)
• Piping joint compounds must be resistant to the action of liquefied petroleum gases
• All piping joints must be tested for leaks with a soap and water solution.

CAUTION: DO NOT INSTALL ANY GAS PIPING IN HEAT ZONES

7.1 GAS PRESSURE

The maximum supply pressure must be limited to 14"w.c. (0.5 psi). If the line pressure is above 14"w.c., then a separate pressure reducing regulator must be installed. The minimum pressure at the inlet to the heater regulator must be equal to or greater than 6.0"w.c. for natural gas and 11.0"w.c. for propane gas.

Proper manifold pressure must be established during commissioning, and will be maintained when the main burner is operating under the following supply pressure:

Table 5		LINE PRESSURE "w.c.		MANIFOLD PRESSURE "w.c. AT GAS VALVE TEST PORT
MODELS GAS TYPE	MINIMUM MAXIMUM
RSEP1S25X, RSEP1S35X	NATURAL GAS	6.0	14.0	5.0
	PROPANE GAS	11.0	14.0	10.0
RSEP2S50N (2-Stage)	NATURAL GAS (ONLY)	6.0	14.0	5.0 High; 3.0 Low

PROPER WIRING POLARITY MUST BE MAINTAINED, particularly when grouping the heaters in a zone. Total wiring distances of up to 200' must use minimum 16 gauge electrical wire, and wiring distances of over 200' must use minimum 14 gauge electrical wire. The heater must be electrically grounded in accordance with local and national electrical codes. Malfunction of the heating system will result if the voltage varies by more than ±10%.

The heater can be controlled by a line voltage thermostat, a 24 volt thermostat or "off-on" switch. Total load of all heaters must be considered in determining the required contact rating of the controlling thermostat or switch.

9. INSTALLATION PROCEDURES

a) Properly install gas line to all local codes
b) Mount heaters using non-combustible mounting hardware
c) Observe all minimum clearances as indicated: OUTDOOR in Table 1 and Figure 1, page 7; INDOOR in Table 3 and Figure 3, page 10.
d) Suggested mounting distances for comfort in Table 2 and Figure 2 are guidelines based on experience. Site conditions can allow for some deviation from these distances.

WARNING: This heater must be rigidly mounted to prevent movement from wind force. When using Mounting Brackets, ensure that anchoring to the structure is of sufficient strength, integrity and workmanship, to support the weight of the heater and any other loads such as snow and wind force.

e) Connect heater to the main gas line. An approved 1/2" flexible connector (field supplied - available as an option from Rinnai) must be used to absorb heater and gas line expansion and any vibration - check local code requirements.

f) Check gas line for leaks by using soap test or gas meter test. Ensure gas pressure meets the requirements outlined in Section 7.1 (above).

WARNING: When testing the main gas line pressure up to 0.5 psig, ensure that the isolation valve and combination gas valve are "OFF", otherwise damage to the combination gas valve will result. When testing main gas line in excess of 0.5 psig the

10. LIGHTING INSTRUCTIONS

1. Ensure the correct voltage is supplied, gas supply lines have been properly purged, and gas valve is switched to the ON position.
2. Turn on power to heater, set thermostat (if applicable) to above ambient temperature, the heater will light.
3. If heater does not light: Turn off power to heater, turn gas valve to OFF position.
4. Wait for five minutes and repeat steps above. If heater does not light after three attempts, call a qualified service technician.

10.1 SHUT DOWN INSTRUCTIONS

a) For temporary shutdown, turn off the electrical supply circuit.
b) For complete shutdown, turn off the electrical circuit and turn gas control knob to the "OFF" position.

11. HEATER FINISH AND APPEARANCE

All models are constructed with a marine grade stainless steel enclosure cabinet, with optional finish of stainless steel, or high temperature black coating.

Stainless Steel Enclosure Heater: ALL stainless steel heaters will discolor or stain to some extent due to the impact of heat. This is a normal occurrence and does not effect heater performance or the warranty of components.

High Temperature Coating Finish Heater: Exterior heater surfaces, including any stainless steel components, are coated with a black high emissive coating that helps preserve the aesthetic appearance of the heater and improves the radiant heat output.

Handle the heater with care during installation and service to avoid scratching or damaging the finish.

With extended use, the finish coat will discolor and deteriorate to some extent due to the impact of heat, the deposit of ambient air born particles, and environmental factors.

12. SERVICING GUIDE (Also refer to Troubleshooting Guide on page 29)

Servicing of heater is essential for continued efficient operation. Servicing should be carried out annually by a qualified gas service technician as follows:

• Clean the ceramic tiles with compressed air. Avoid directing air stream at gasket material between tile and heater body. The air pressure must be lower than 20 psig.
• Clean venturi tube with compressed air. The air pressure must be lower than 20 psig.
• Ensure gas orifice is clean and the heater cabinet is free of any debris

Indication of back firing:

• Loud ignition noise, followed by distinct hissing sound.
  • Little or no visible burning on the ceramic tile surface.
• Combustion is taking place inside the burner body.

WARNING: If heater backfires during operation, it must be turned off immediately.

Cause & remedy of back firing:

• Improper gas pressure entering the venturi tube: check pressure.
• Breakage of a ceramic tile and or gasketing: - replace damaged part.
• Faulty sealing of the ceramic tile to the burner body, caused by breakdown of gasket material: contact your local distributor or contractor.

HEATER SERVICING POSITION:

WHEN USING WALL MOUNT BRACKET 903000024 (see Figure 4 next page), the heater may need to be rotated 'up' so that access is provided to the service access door at the rear side of the heater that is against the wall.

1. To allow rotation of the heater, slacken the upper bolt fastening the heater bracket to the

Figure 4: HEATER SERVICE POSITION WITH WALL MOUNT BRACKET

FOR SERVICING HEATER: (To simplify illustration the heater is not shown) IT IS NOT NECESSARY TO REMOVE HEATER FROM SUPPORT BRACKET DRAWINGS SHOW JUST THE BRACKET FOR BETTER VIEW

ROTATE TO SERVICE POSTITION

LOWER TO OPERATING POSITION
4
②
②
4

13. VENTILATION REQUIREMENTS FOR INDOOR APPLICATION

WARNING

NING Inadequate venting of a heater may result in asphyxiation, carbon monoxide poisoning, injury or death. Heating system venting must be in accordance with all local, state, provincial, and national codes (ANSI Z223.1/NFPA 54 in USA).

This heater is approved for unvented (indirect venting) application. Ensure that there is adequate ventilation to supply combustion air and to dilute the products of combustion in accordance with all local, state, provincial, and national codes. A balanced exhaust / inlet air system is required to ensure that a negative air condition is not created. See below for a summary of exhaust capacity requirements by the national codes in the U.S.A.

Air Supply: A "loose" building may not require any additional air supply if infiltration rates are sufficient to offset exhaust volume. However, for "tighter" buildings, or if air movement is stagnant in an area, air can typically be supplied via inlet(s) with an area of 1 sq. in. per 1,000 Btuh input (22 sq cm per kW). Locate air inlet(s) up at the level of the heaters to avoid cold drafts at work level, and effectively supply combustion and dilution air to the heaters and balance the system.

Heater Zoning: Exhausters are sized according to the input requirements of each controlled zone of heaters. Multiple smaller zones are usually more effective in both comfort and ventilation control than one large zone. Maximum zone size is limited by the total input that can be handled by the capacity of an exhauster, and by the proximity of the exhauster to heaters in the zone.

Exhaustor Location & Proximity: Exhaust must be located as high as practicable in the structure above the level of the heater(s) to effectively dilute and remove the warm (rising) products of combustion. The exhauster should be as centrally located as practicable in the zone of heaters. Rinnai recommends a maximum 6:1 ratio of the horizontal distance between the exhauster and the furthest heater in a zone, to the height the heaters are mounted above the floor. For example, if heaters are mounted 20 ft above the floor, then the exhaust fan should be located no more than 120 ft from the furthest heater in the zone. Sufficient air supply

14. HEATER DIMENSIONS & CONFIGURATIONS

Table 5: CAPACITIES & CONFIGURATIONS

MODEL Voltage	VAC	Current amps	Btu/hr input Total Weight (Ibs).	Length < A >
RSEP1S25X (NG and LP)	24 40	VA*	23,000	32
RSEP1S35X (NG and LP)			23,000	32
RSEP2S50N (NG)			35,000	44
			35,000	44
			50,000/35,000	49

* For a multiple heater installation, the first heater is sized at 40VA and each consecutive heater is sized at 20VA. The sum total will be the required Transformer size. If total VA exceeds one transformer size select the next higher VA rated transformer.

Figure 5: DIMENSIONS

Front View End View A 10" SCHWANX 13"

1. MOUNTING KIT OPTIONS (NOTE: For unusual mounting application contact

Figure 6: MOUNTING KIT OPTIONS
NOTE: MOUNT HEATER AT MAXIMUM 30° ANGLE TO AVOID DAMAGE This heater must be rigidly mounted to prevent movement from wind force.
ITEM 1: CEILING MOUNT
BRACKET KIT
903000009
Also see
next page

7" [178mm] 2" [51mm] 3-3/8" [86nm] Ø 7/16" [11mm]

ITEM 3: ARM MOUNTING KIT
903000028

903000028 27.5" HEATER TO WALL

ITEM 2: WALL MOUNT BRACKET
903000022

ITEM 4: POST MOUNT BRACKET
903000026

Figure 7: MOUNTING OPTIONS

903000009: Stainless Steel Ceiling Mount Kit for Patio Heaters

Component Quantities and Material Specifications each Kit:

2 x Ceiling Bracket - 12 ga. [0.102"] 316 S/S
2 x 24" [610 MM] Channel Leg - 12 ga. [0.102"] 316 S/S
2 x Heater Attachment Bracket - 12 ga. [0.102"] 316 S/S
12 x 1/4" x 3/4" Stainless Steel Bolts
12 x ¼" Stainless Steel KEP Nuts [lock washer attached]

Note: It is the installer's responsibility to ensure:

■ Adequate mounting strength and integrity to the structure using field supplied 3/8" lag screws or bolts
■ Maintain required clearances to combustibles from heater
■ Refer to manual: heater weights; required clearances

Figure 8: CEILING MOUNT

7" [178mm] 2" 2" 2" [51mm] 3-3/8" [86mm] Ø 7/16" [11mm] ON TOP OF HEATER

Assembly: (Fig 8)

The 24" [610 mm] Channel Leg can be cut to a shorter length

■ Ensure required clearances to combustibles from heater are maintained

Fasten the Ceiling Bracket and Heater Attachment Bracket to the Channel Leg using two supplied 14 " bolts at each connection as illustrated.

The arc of holes in the Ceiling Bracket allows angling of the Channel Leg from the bracket

Figure 10: HEATER INSTALLATION: WALL MOUNT BRACKET

WALL MOUNTING BOLTS ARE NOT INCLUDED IN THE MOUNTING KIT ① ② ③ ④ Wall Mount Bracket Heater Bracket

16. ELECTRICAL REQUIREMENTS AND THERMOSTAT CONTROL

All electrical installations must meet local and the latest edition ANSI/NFPA N0 70 in the U.S.A.. Single heater requires 24 Volt, 60 Hz electrical transformer sized at 40VA. If multiple heaters are connected to a single transformer, the proper transformer is 24 Volt, 60 Hz, sized at 40VA for the first heater, and 20VA each for all subsequent additional heaters. For example, four heaters wired together (parallel), require a transformer of 100 VA. It is recommended to install at most 2 heaters per zone for best comfort control and economy of operation. PROPER WIRING POLARITY MUST BE MAINTAINED, particularly when grouping the heaters in a zone.

Total wiring distances of up to 200' must use minimum 16 gauge electrical wire, and wiring distances of over 200' must use minimum 14 gauge electrical wire. The heater must be electrically grounded in accordance with the local electrical code. Malfunction of the heating system will result if the voltage varies by more than ±10%.

The heater can be controlled by a line moisture proof thermostat "off-on" switch, or Remote Control. Total load of all heaters must be considered in determining the required contact rating of the controlling thermostat or switch.

RINNAI P/N	Transformer Description	Capacity
903000034	120V/24V 100 VA	Up to 4 heaters
903000035	120V/24V 150 VA	Up to 6 heaters
903000036	120V/24V 200 VA	Up to 9 heaters
903000037	120V/24V 250 VA	Up to 11 heaters
903000038	120V/24V 350 VA	Up to 16 heaters

16.1 CONTROL OPTIONS

Patio Heaters can be operated using Remote Control Option: (Except RSEP2S50N 2-stage)

• 903000030 Remote Receiver Kit (field installs in heater)
• 903000031 Remote Handset
• Refer to the manual accompanying the Remote Receiver Kit for installation.

Two-Stage Model RSEP2S50N requires one of the Illuminated Switch Gang 2-Stage Control

17. SEQUENCE OF OPERATION FOR FENWAL 35-60 DSI CONTROL

Start up - Heat Mode:

On a call for heat the Fenwal 35-60 control will reset, perform a self-check routine, flash the diagnostic LED for up to four seconds. The gas valve and spark are energized commencing the trial for ignition period. When flame is detected during the trial for ignition, spark is shutoff immediately and the gas valve remains energized. The thermostat and main burner flame are constantly monitored to ensure the system continues to operate properly. When the thermostat is satisfied and the demand for heat ends, the gas valve is de-energized.

Flame Failure - Multi Trial Model:

Should the main burner fail to light, or the flame is not detected during the first trial for ignition period, the gas valve is de-energized and the control goes through an interpurge delay before another ignition attempt. The control will attempt two additional ignition trials before going into lockout and the valve relay is de-energized.

Recovery from lockout requires a manual reset by either resetting the thermostat or removing 24 volts for a period of 5 seconds. If the thermostat is still calling for heat after one hour the control will automatically reset and attempt to ignite the burner again.

Flame Failure - Re-Ignition:

If the established flame signal is lost while the burner is operating, the control will respond within 0.8 seconds. The HV spark will be energized for a trial ignition period in an attempt to relight the burner.

If the burner does not light the control will make two more attempts to relight the burner before de-energizing the gas valve. If the burner does not relight, the control will go into lockout as noted above in "Failure to light". If flame is re-established, normal operation resumes. Multi-try models will allow three trials for ignition including interpurge delay between trials.

Flame current is the current

which passes through the flame

MULTIPURPOSE METER

Cautions:

1. The ceramic insulator of the igniter assembly should not be in or close to the flame.
2. The electrode assembly should not be disassembled and care must be used in making minor gap adjustment. The spark electrode should have a gap spacing of 1/8"-3/16" (3.12±0.81 mm). If this spacing is not correct, the assembly must be carefully adjusted.
3. Exceeding the temperature limits can cause nuisance lockouts and premature electrode failure.

The control must be secured in an area that will experience a minimum of vibration and remain below the maximum operating temperature of 160^ F.

18. SPARK IGNITION CIRCUIT

The step-up transformer in the ignition control provides spark ignition at 30,000 volts (open circuit). To check the spark ignition circuit, proceed as follows.

1 Shut off gas supply to the gas control
2 Disconnect the ignition cable at the ignition control stud terminal to isolate the circuit from the spark igniter or igniter/sensor
3 Prepare a short jumper lead, using heavily insulated wire such as ignition cable

CAUTION

In the next step, DO NOT allow fingers to touch either the stripped end of the jumper or the stud terminal. This is a very high voltage circuit and electrical shock can result.

1 Perform this test immediately upon energizing the system before the ignition control goes

19. WIRING DIAGRAM: SE+ Series with Fenwal 35-60 DSI Control

System Transformer* (Field Supplied) 120V L1 N1 24V A1 A2 Heater Ignition Module H1 H2 H3 * System transformer rating: 40VA first heater + 20VA each additional heater System Transformer (field supplied) Maintain polarity multi-heater 120V 24V A1 A2 H1 FENWAL IGNITION CONTROL TH V1 BLACK GREEN GND S1 WHITE GAS VALVE OFF ON MV MV GREEN FC+

19-B. WIRING DIAGRAM: RSEP2S50N Two-Stage: Fenwal 35-60 DSI

System Transformer* (Field Supplied) 120Vac N1 24Vac C 24Vac H1 LO HI H2 LO HI H3 LO HI * System transformer capacity: 40VA first heater + 20VA each additional heater 2-STAGE CONTROL: SWITCH/PLATE ASSEMBLIES 903000006 SINGLE SWITCH/PLATE ASSEMBLY - 2 STAGE PATIO 903000007 DOUBLE SWITCH/PLATE ASSEMBLY - 2 STAGE PATIO 903000008 TRIPLE SWITCH/PLATE ASSEMBLY - 2 STAGE PATIO 2-STAGE CONTROL SWITCH SEQUENCE: OFF-ON-ON N1 120Vac 24Vac LO HI C WHITE FENWAL IGNITION CONTROL TH V1 V2 GND S1 BLACK BLUE GREEN RED TWO-STAGE GAS VALVE OFF F COM HI WHITE WHITE FLAME

18-C. WIRING DIAGRAM: Two-Stage Switch Control

2-STAGE PATIO CONTROL SWITCH ASSEMBLY WIRING

• Control from 1 to 4 heaters in a zone with each switch
• 2-Stage switch sequence required: OFF-ON-ON
- LOW STAGE SWITCH MUST BE ACTIVATED FOR HIGH STAGE OPERATION
• 3-Wire from first switch provides common (24Vac) to all heaters
2-Wire from additional switches provides low/high stage control

1 to 4 Heaters/Zone H4 H3 H2 H1 Z2-HIGH Z2-LOW Z1-HIGH Z1-LOW Common to ALL HEATERS RED WHITE BLK RED WHITE C ZONE 2 LO HI LO ZONE 1 BLUE BLUE 24Vac 24Vac 24Vac 120Vac N1 SYSTEM TRANSFORMER* (Field Supplied) SYSTEM TRANSFORMER* (Field Supplied) L1 903000006 SINGLE SWITCH ASSEMBLY 903000007 DOUBLE SWITCH ASSEMBLY 1 to 4 Heaters/Zone *SYSTEM TRANSFORMER (field supplied) Capacity: 40 VA for first heater

1. TROUBLESHOOTING GUIDE
   

graph TD
    A["TURN HEATER ON"] -->|YES| B["24 VOLTS ±10% TO DSI CONTROL"]
    A -->|NO| C["CHECK 120 V AT PRIMARY TRANSFORMER\n*CHECK VOLTAGE OUT AT SECONDARY.\n*IF THERE IS NOT 24V TO SECONDARY....\n......REPLACE THE TRANSFORMER"]
    B -->|YES| D["24 VOLTS OUT FROM CONTROL"]
    B -->|NO| E["CHECK 24V WIRING FROM TRANSFORMER\nTO IGNITION CONTROL / AND CHECK IF\nCORRECT GAUGE OF WIRE FOR DISTANCE.\n*REPLACE WIRES IF NECESSARY."]
    D -->|YES| F["24 VOLTS AT GAS CONTROL"]
    D -->|NO| G["CHECK FOR 24 VAC ACROSS GAS VALVE\nTERMINALS ON CONTROL. IF NO VOLTAGE,\n......REPLACE CONTROL."]
    F -->|YES| H["GAS VALVE OPENS."]
    F -->|NO| I["ENSURE GAS IS TURNED ON AT VALVE.\n*CHECK ELECTRICAL CONNECTIONS AT\nCONTROL & GAS VALVE.\n*CHECK 24V WIRING CONTINUITY FROM DSI\nIGNITION CONTROL TO GAS VALVE, RE-PLACE WIRES IF NECESSARY."]
    H -->|YES| J["IF 24V IS PRESENT AND VALVE DOES NOT OPEN\nREPLACE VALVE"]
    H -->|NO| K["IF 24V IS PRESENT AND VALVE DOES NOT OPEN\nREPLACE VALVE"]

graph TD
    A["MAIN BURNER LIGHTS"] -->|YES| B["SPARK STOPS WHEN BURNER LIT."]
    A -->|NO| C["CHECK FOR CORRECT MANIFOLD GAS PRESSURE\n*CHECK FOR OBSTRUCTION IN GAS SUPPLY OR OR-IFICE (INSECTS, SPIDERS COCOONS ETC.)"]
    B -->|YES| D["DOES FLAME REMAIN STABLE AFTER THE SPARK CYCLE IS COM- PLETE. (NO FLAME FAIL)"]
    B -->|NO| E["CHECK FLAME SIGNAL WITH METER FOR 0.7μA.\nIF READING IS LOW CHECK GAS PRESSURE, IF OK\nCHANGE SENSOR.\nCHECK FOR CONTINUITY OR SENSOR CABLE AND\ngROUND WIRE.\nCHECK THAT BURNER FLAME COVERS ALL ELECTRODES.\nIF CHECKS ARE OKAY, REPLACE CONTROL MODULE."]
    D -->|YES| F["SYSTEM RUNS UNTIL"]
    D -->|NO| G["CHECK SENSOR FLAME SIGNAL WITH METER FOR 0.7μA MINIMUM STEADY READING.\nIF READING IS LOW CHECK GAS PRESSURE\nIF OK ....CHANGE SENSOR.\nCHECK FOR CONTINUITY OR SENSOR CABLE AND\ngROUND WIRE.\nCHECK THAT BURNER FLAME COVERS ALL ELECTRODES. IF CHECKS ARE OKAY, REPLACE CONTROL MODULE.\nNOTE: IF GROUND IS POOR OR ERRATIC, SHUT-DOWN MAY OCCUR OCCASIONALLY EVEN THOUGH OPERATION IAPPEARS NORMAL AT THE TIME."]
    G -->|YES| H["CHECK FOR PROPER TEMPERATURE CONTROLLER OPERATION"]

21. COMMISSIONING REPORT

This heater has been factory fired and tested prior to shipment. However, it is not a 'Plug-in' appliance. Commissioning and field adjustment to correct settings is required.

COMPLETE THIS COMMISSIONING REPORT AND FILE THIS MANUAL AT SITE FOR FUTURE REFERENCE

INSTRUCT THE END USER THAT THIS MANUAL MUST BE KEPT SECURE

COMMISSIONING REPORT

AS PER I&O MANUAL AND LOCAL/NATIONAL CODES

CONTRACTOR:

STREET:

CITY:

STATE/PROV:

ZIP:

PHONE:

CELL:

JOBE NAME:

CITY:

STATE/PROV:

HEATED MODEL NUMBER.

HEATER COMMISSIONING TECHNICAL REPORT TO BE COMPLETED BY QUALIFIED GAS FITTER INSTALLER

TYPE OF GAS NG

HEATER IS EXPOSED TO CHENICAL OR CORROSIVE ATMOSPHERE

OPEN COMBUSTION IS COMPATIBLE WITH THE INSTALLED LOCATION

MINIMUM CLEARANCES CONFORM TO REQUIREMENTS OF THIS MANUAL

WHAT IS THE ALTITUDE OF THIS PROJECT LOCATION ABOVE SEA LEVEL

■ IS ALTITUDE ADJUSTMENT REQUIRED? (See Section 21 next page)

THE HEATER IS INSTALLED LEVEL ON THE LONG AXIS

THE GAS SUPPLY PIPING IS ADEQUATELY SIZED FOR SYSTEM VOLUME

GAS SUPPLY LINES AND BRANCHES HAVE BEEN PURGED OF AIR

INLET GAS SUPPLY PRESSURE WITH ALL HEATERS OPERATING

MANIFOLD PRESSURE WITH HEATER OPERATING

WIRING POLARITY IS MAINTAINED AT EACH IGNITION MODULE IN SYSTEM

VOLTAGE READING AT IGNITION MODULE

FLAME SIGNAL STRENGTH FROM SENSOR (μA microamps)

IS THE HEATER CONTROLLED BY A THERMOSTAT

IS THE THERMOSTAT STRATEGICALLY LOCATED

LP YES NO YES NO YES NO FEET YES NO YES NO YES NO "WC" "WC YES NO VOLTS μA YES NO YES NO

22. HIGH ALTITUDE INSTALLATION / DERATION

This heater not to be installed at altitude above 6,800 feet.

USA: The factory installed orifice for this appliance is approved for altitudes zero to 2000 feet above sea level. When installed above 2000 feet, refer to information below.

When this appliance is installed above the standard altitude stipulated the input must be de-rated by 4% for each 1000 ft above sea level. The orifice must be changed according to the chart below - confirm the correct model. Check with your local utility regarding the gas supply and the de-rating of this appliance.

MODEL	USA ORIFICE DERATIONFOR USE AT ALTITUDES ABOVE (FEET)Gas Orifice Drill Size ^1 / Part #
	Supplied	USA Only
	0	>2000	>3000	>4000	>5000	>6000	DO NOTINSTALL ATALTITUDE ABOVE6,800 FEET
RSEP1S25N (NG)	45 DMS906000140	46 DMS906000141	2 MM906000153	47 DMS906000163	48 DMS906000164	48 DMS906000164
RSEP1S25P (LPG)	54 DMS906000144	54 DMS906000144	55 DMS906000170	55 DMS906000170	55 DMS906000170	55 DMS906000170
RSEP1S35N (NG)	38 DMS906000025	39 DMS906000157	40 DMS906000138	41 DMS906000159	41 DMS906000159	42 DMS906000160
RSEP1S35P (LPG)	50 DMS906000026	51 DMS906000142	51 DMS906000142	51 DMS906000142	51 DMS906000142	52 DMS906000167
RSEP2S50N (NG)	31 DMS906000137	32 DMS906000154	32 DMS906000154	32 DMS906000154	33 DMS906000155	34 DMS906000156

^1 Per ANSI Z223.1 (NFPA 54)

23. Replacement Parts List

Only the following illustrated parts are available. For any other parts please contact Rinnai.

HANGING SUPPORT 902000001 SERVICE DOOR 909000104 DOOR FASTENER 909000105 LATERAL CHIMNEY 902000001 2 SCREEN RETAINER 909000107 PIPE PLATE 906000060 END INSULATION 909000076 WIRE GROMMET 909000051 NIPPLE GROMMET 906000041 ORIFICE HOLDER

23. Replacement Parts List Con't

Replacement parts for the RSEP2S50N 2 stage (50,000/35,000 Btu/hr)

Item Number(page 35)	Part Description Part Number
8	6" Nipple	906000030
9 2 Stage	Gas Valve 906000149
10	2" Nipple With Hole	906000027
11	2 Stage Control Bracket	909000142
13	Pilot Burner Assembly	906000032
	Pilot Gas Tube Assembly	906000135
Pilot Nipple Ferrule 906000152
Flame Sensor 906000034
14	Extended End Plate	903000004
16	Extended Screen Retainer	903000005

NOTES

NOTES

NOTES