Cuddy DC II - Air Conditioning DOMETIC - Free user manual and instructions

USER MANUAL Cuddy DC II DOMETIC

Self-Contained Air Conditioning System

• Self-Contained Air Conditioning System Uzstādīšanas rokasgrāmata p. 202
• EN Copyright © 2024 Dometic Group. The visual appearance of the contents of this manual is protected by copyright and design law. The underlying technical design and the products contained herein may be protected by design, patent or pending patent. The trademarks mentioned in this manual belong to Dometic Sweden AB. All rights are reserved. 2EN English 1 Important notes p. 3
• 2 Explanation of symbols p. 3
• 3 Target group(s) p. 4
• 4 Intended use p. 4
• 5 Explanation of symbols on the device p. 4
• 6 Pre-installation p. 4
• 7 Installation p. 6
• 8 Disposal p. 9
• 9 Technical data p. 9
• 10 Legal p. 10
• 11 Warranty 1 Important notes Please read these instructions carefully and follow all instructions, guidelines, and warnings included in this product manual in order to ensure that you install, use, and maintain the product properly at all times. These instructions MUST stay with this product. By using the product, you hereby confirm that you have read all instructions, guidelines, and warnings carefully and that you understand and agree to abide by the terms and conditions as set forth herein. You agree to use this product only for the intended purpose and application and in accordance with the instructions, guidelines, and warnings as set forth in this product manual as well as in accordance with all applicable laws and regulations. A failure to read and follow the instructions and warnings set forth herein may result in an injury to yourself and others, damage to your product or damage to other property in the vicinity. This product manual, including the instructions, guidelines, and warnings, and related documentation, may be subject to changes and updates. For up-to-date product information, please visit documents.dometic.com. 2 Explanation of symbols A signal word will identify safety messages and property damage messages, and also will indicate the degree or level of hazard seriousness. DANGER! Indicates a hazardous situation that, if not avoided, will result in death or serious injury. WARNING! Indicates a hazardous situation that, if not avoided, could result in death or serious injury. NOTICE! Indicates a situation that, if not avoided, can result in property damage. NOTE Supplementary information for operating the product. p. 10

2.1 Supplemental directives

To reduce the risk of accidents and injuries, please observe the following directives before proceeding to install this appliance:

• Read and follow all safety information and instructions.

• Read and understand these instructions before installing this product.

• The installation must comply with all applicable local or national codes, including the latest edition of the following standards:

• American Boat and Yacht Council (ABYC)

DANGER! Risk of fire or explosion. Some models use flammable refrigerant. Failure to obey the following warnings will result in death or serious injury: To be repaired only by trained service personnel. Do not install or store in a location with continuously operating sources of ignition. Maintain all required ventilation openings free from obstructions. Do not puncture refrigerant tubing. Refer to the product data plate for refrigerant type. WARNING! Fire and/or explosion hazard Failure to obey the following warnings could result in death or serious injury: Do not use potential sources of ignition to detect or search for refrigerant leaks. Do not use a halide torch, or any other detector that uses a naked flame. Be sure that detection equipment is suitable for the refrigerant type used in the product. Refer to the product data plate for the refrigerant type. Electronic leak detectors may be used to detect refrigerant leaks, however, their sensitivity may be inadequate for flammable refrigerants and may need recalibration. Calibrate detection equipment in a refrigerant-free area. WARNING! Carbon monoxide hazard Failure to obey the following warnings could result in death or serious injury: Do not install or operate a self-contained air conditioner in the bilge or engine room areas, or near an internal combustion engine. Ensure that the selected location is sealed from direct access to bilge and/or engine room vapors. Verify the condensate drain line is properly installed and sealed. Do not end the condensate drain line within 3 . (0.91 m) of any outlet of an engine or generator exhaust system, in a compartment containing an engine or generator, or in a bilge, unless the drain is connected properly to a sealed condensate or shower sump pump. If the drain line is not properly installed, dangerous fumes may travel up the drain line and contaminate the living quarters. Do not install the air conditioner in a location where it can circulate carbon monoxide, fuel vapors, or other noxious fumes into the boat’s living spaces. WARNING! Electrocution hazard The installation may only be carried out by a qualified electrician. WARNING! Electrical shock, fire and/or explosion hazard Failure to follow these precautions could result in death or serious injury. This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction about the use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision. This appliance should not be accessible to the general public. WARNING! Explosion hazard Failure to follow these precautions could result in death or serious injury. Do not install the air conditioner in a location containing gasoline engines, tanks, LPG/CPG cylinders, regulators, valves, or fuel line fittings. Unless labeled otherwise, self-contained units do not meet federal requirements for ignition protection. Failure to obey this warning could result in death or serious injury. Electrical components that can arc or spark shall only be replaced with parts specified by the appliance manufacturer. Replacement with other parts may result in the ignition of refrigerant in the event of a leak. 3EN WARNING! Electrical shock hazard Failure to follow these precautions could result in death or serious injury. Be sure to effectively ground the air conditioner to minimize the electrical shock hazard. Refer to the installation guidelines for further information. Each air conditioner installed requires a dedicated circuit breaker. If there is only one air conditioner installed, the seawater pump does not require a dedicated circuit breaker. If two or more air conditioning units use the same seawater pump, the pump wires will be connected to a pump relay panel (PRP), which in turn has its own dedicated circuit breaker sized for the pump (20 A max). Refer to the wiring diagram furnished with the PRP. Electrical connections in the bilge and/or below the waterline should use heat shrink type butt splices. Field wiring must comply with ABYC electrical codes. Power to the unit must be within the operating voltage range indicated on the data plate. Properly sized fuses or HACR circuit breakers must be installed for branch circuit protection. See the data plate for the maximum fuse/circuit breaker size (MFS) and minimum circuit capacity (MCA). NOTICE! This appliance has fluorinated greenhouse gases in hermetically sealed equipment. Refer to the condensing unit’s product data plate label for the quantity of refrigerant shown in weight and GWP. The refrigerant added should be noted on the unit label. NOTICE! Do not use the copper tubing to push, pull, li, or carry the product. 3 Target group(s) The mechanical and electrical installation and setup of the device must be performed by a qualified technician who has demonstrated skill and knowledge related to the construction and operation of marine equipment and installations, and who is familiar with the applicable regulations of the country in which the equipment is to be installed and/or used, and has received safety training to identify and avoid the hazards involved. 4 Intended use This manual is intended for the installation of DCU, DLU, DTG, ECD, GT, GTX, GTX- LP, GVTX, and TX self-contained air conditioning systems (hereinaer referred to as air conditioner). The air conditioner is intended for use on boats and yachts. This air conditioner is only suitable for the intended purpose and application in accordance with these instructions. This product is only suitable for the intended purpose and application in accordance with these instructions. This manual provides information that is necessary for proper installation and/or operation of the product. Poor installation and/or improper operation or maintenance will result in unsatisfactory performance and a possible failure. The manufacturer accepts no liability for any injury or damage to the product resulting from:

• Incorrect installation, assembly or connection, including excess voltage

• Incorrect maintenance or use of spare parts other than original spare parts provided by the manufacturer

• Alterations to the product without express permission from the manufacturer

• Use for purposes other than those described in this manual Dometic reserves the right to change product appearance and product specifications. 5 Explanation of symbols on the device Warning! Risk of fire / Flammable materials Warning! Low burning velocity material. Flammable refrigerant. Refrigerant safety group A2L Read operating manual. Read service manual. 6 Pre-installation NOTICE! The DTG, GTX, GVTX, and TX self-contained condensate base pans are equipped with vibration isolators installed in the bottom of the pan. These isolators are designed to dampen the vibration caused by the operating air conditioner from transferring into the mounted surface. Care must be taken when moving the air conditioner across mounting surfaces as the isolators can be damaged. NOTICE! The air conditioner must be mounted to a low, flat, level surface, like in the bottom of a locker, under a bunk or dinette seat, or in a similar location. Ensure that the cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges, or any other adverse environmental effects, including effects from aging or continual vibration from sources such as compressors or fans. Ensure that protection devices, piping, and fittings are protected as far as possible against adverse environmental effect such as dirt and debris accumulation or water collecting and freezing in relief pipes. Precautions should be taken to avoid excessive vibration or pulsation to the refrigerating piping. 4EN

6.1 Determining the installation location

1. GVTX and TX placement relative to airflow

1 3.00 in (7.62 cm) 4 4.00 in (10.16 cm) 2 Heat sink 5 Return air grille 3 Bulkhead 6 Airflow All other air conditioning units placement relative to airflow

2. Choose a location with enough airflow. The return air grille should have a minimum

of 4.00 in (10.16 cm) of air circulation clearance in front of it, free from any obstruction.

3. If the air conditioner is positioned perpendicular to the return air grille, maintain a

minimum of 3.00 in (7.62 cm) air circulation clearance on the air intake side.

4. GVTX and TX only: Provide a minimum open area of 3.00 in (7.62 cm) above and

below the heat sink.

6.2 Rotating the blower

This section explains how to rotate the blower for each unit type. If needed, rotate the blower to the direction that allows the most direct airflow discharge through the ducting.

6.2.1 GTX, GVTX, DTG, and TX blowers

GTX, GVTX, DTG, and TX system blower rotation

1 Adjustment screw 2 Blower

1. Loosen the adjustment screw on the blower mount ring.

2. Rotate the blower to the desired position.

3. Tighten the adjustment screw.

1. Remove the seven screws on the plate.

2. Rotate the blower to the desired position.

3. Secure the blower in place using self-tapping screws (not provided).

1. Remove the screws from the blower ring.

2. Remove the screws attaching the blower to the drain pan or bracket.

3. Rotate the blower to the desired position.

4. Secure the blower in place using self-tapping screws (not provided).

5. Plug any unused holes to prevent air loss.

6.3 Placing the air filters

Air filters remove airborne particles from the cabin air and keep the evaporator coil clean. Place one air filter, either on the air conditioner or in the return air grille, for each air conditioner.

6.4 Placing the grilles and transition boxes

Consider the following when placing the grilles and transition boxes:

• Install the supply air grille as high as possible in a location that will give uniform air distribution throughout the cabin. Direct the grille louvers upward.

• Install the return air grille as low and close to the air conditioner as possible to ensure airflow to the evaporator.

• Do not direct the supply air discharge towards the return air grille, as this will cause the system to short cycle.

• Allow for adequate clearance behind the supply air grille for the transition box and ducting connection. Refer to Specifications on page10 7 Installation WARNING! Electrocution hazard The installation may only be carried out by a qualified electrician.

7.1 Installing the mounting brackets and condensate drain

NOTICE! To prevent cracking the drain pan, do not use more than two layers of plumbers tape to wrap the hose barb, and do not overtighten the hose barb. Typical placement of mounting brackets and condensate drains

1 Condensate drain hose barb2 Mounting bracket Condensate drain installation for GTX, GVTX, DTG , and TX

1 Hose barb 4 Drain pan2 Threaded drain hole 5 Drain hose3 Slug knockout 6EN Condensate drain installation for all other air conditioning units

1. For GTX, GVTX, DTG, and TX units:

a) Use the small end of the hose barb to knock out a slug from an a-facing drain hole by applying one quick strike with a rubber mallet. Discard the slug knockout. b) Wrap the threaded end of the hose barb with plumbers tape. c) Screw the hose barb into the threaded drain hole and tighten securely.

2. For all other air conditioners:

a) Thread the hose barb through a solid washer and liquid-seal washer and insert it into the drain hole. b) Secure with a locking nut.

3. Secure the drain hose to the hose barb with a stainless steel hose clamp.

4. Route the drain hose downward to a safe and proper collection point.

Mounting bracket installation for GTX, GVTX, DTG, and TX units

1 Mounting bolt (not provided) 2 Fender washer (provided) 3 Mounting bracket (provided) Mounting bracket installation for other air conditioning units

1 Drain pan 2 Mounting bracket 3 Mounting bolt (not provided) 7EN

5. Install one mounting bracket on each side of the drain pan, evenly spaced.

Installing foam handle insulation on GVTX and TX units

1 Foam handle insulation 2 Handle opening 3 Drain pan

6. For GVTX and TX units:

a) Remove the film covering the adhesive backing on the foam handle insulation. b) Position the foam handle insulation to completely cover the handle opening with the adhesive side facing the drain pan. c) Press around the handle opening to adhere the foam handle insulation to the drain pan.

7.2 Installing the ducting

WARNING! Risk of fire or explosion Auxiliary devices which may be ignition sources shall not be installed in the ductwork, other than auxiliary devices listed for use with the specific appliance. For models using flammable refrigerants, which are connected via an air duct system to one or more rooms, the supply and return air shall be directly ducted to the space. Open areas such as false ceilings shall not be used as a return air duct. Do not route ducting through an engine room or any area where it may be exposed to dangerous vapors or exhaust fumes. Observe the following conditions when installing the ducting:

• Ducting must be appropriately sized for your application.

• Run ducting as straight, smooth, and taut as possible, minimizing the number of 90° bends and loops, which can reduce airflow.

• Fasten the ducting securely to prevent sagging.

• Do not allow ducting to be flattened or kinked.

• Trim excess ducting lengths following installation.

• Insulate ducting when it is located in high-heat areas. If a transition box is used, the total area of supply air ducts going out of the box should be at least equal to the total area of the supply ducts going into the box. Refer to Specifications on page10 Ducting connections

1 Fiberglass insulation 4 Inner mylar duct hose 2 Mount ring 5 Duct tape 3 Transition box

1. Slide the inner mylar duct hose around the mount ring to the transition box.

2. Screw three or four stainless steel screws through the mylar duct hose into the mount

ring, capturing two or three wires with screw heads.

3. Slide the fiberglass insulation around the inner mylar duct hose to the transition box.

Secure with duct tape.

7.3 Installing the seawater system

NOTICE! Failure to follow this procedure will void the warranty. Observe the following considerations when setting up the seawater system:

• The strainer must be below the pump.

• Hoses must be double clamped.

• Hoses must not have kinks, loops, or high spots where air can become trapped.

• The pump and strainer must be below the water line.

• The thru-hull inlet, ball valve, hose, and strainer should be no smaller than the pump inlet.

• Install the thru-hull fitting as far below the water line as possible.

• The pump must have a dedicated thru-hull.

• Avoid 90.00 ° elbow fittings as much as possible.

• Ensure that the pump head is rotated toward the direction of water flow.

• Use plumbers tape on all threaded connections. Refer to Specifications on page10 for maximum and minimum water temperature and pressure values. Seawater system 8EN

1. Install a seawater scoop thru-hull inlet as close to the keel and as far below the

water line as possible. Secure the scoop thru-hull inlet using a marine-grade sealant designed for underwater use.

2. Install a bronze, full-flow seacock on the seawater scoop thru-hull inlet.

3. Install a seawater strainer below the level of the pump with access to the filter.

4. Mount the pump above the strainer and at least one foot below the waterline.

5. Connect the seacock and strainer with an uphill run of reinforced marine-grade hose.

6. Connect the discharge from the pump uphill to the bottom inlet of the air

conditioners condenser coil with a 5/8 in reinforced, marine-grade hose.

7. Connect the discharge from the condenser coil to the overboard discharge thru-hull

fitting with a 5/8 in. reinforced marine-grade hose.

8. Avoid loops, high spots, or the use of 90° elbows with the seawater hose. Each 90°

elbow is equivalent to 2.5 (0.76 m) of hose and a 90° elbow on the pump outlet is equivalent to 20.0 (6.10 m) of hose.

9. Double-clamp all hose connections using two stainless steel clamps, reversing the

clamps where necessary.

10. Connect all metallic parts in contact with seawater to the vessel’s bonding system.

7.4 Making electrical connections

WARNING! Electrical shock hazard Always turn off the air conditioning power supply breaker before opening the electrical box. Failure to obey this warning could result in death or serious injury. Ensure the electrical box is located in an area that is protected from water. NOTICE! The air conditioner must be connected to the boat’s bonding system to prevent corrosion due to stray electrical current. All pumps, metallic valves, and fittings in the seawater circuit that are isolated from the air conditioner by PVC or rubber hoses, must be individually bonded to the boat’s bonding system. NOTE Failure to properly ground and bond the system will void the warranty. All conditioning units have a terminal strip, labeled for proper connections, inside the electric box. The wiring diagram inside the electric box supersedes ABYC standards. Use the correct size circuit breaker to protect the system as specified by the air conditioning units data plate label. A minimum of 12 AWG boat cable should be used to supply power to the air conditioner and the seawater pump. Make all connections using ring or captive fork terminals. Observe the following when making electrical connections:

• Alternating current (AC) grounding must be connected to the ground terminal (GRND) at the AC power input terminal block.

• Connections between the vessel’s AC system grounding conductor and the vessel’s direct current (DC) negative or bonding system should be made as part of the vessel’s wiring. When maintenance or replacing existing equipment that has a chassis- mounted ground stud, check the vessel’s wiring for these connections.

• GVTX and TX air conditioners are designed to operate on AC or high voltage DC. Refer to the vessel’s wiring diagram for correct placement. Ensure that the AC ground of the air conditioner is properly connected to the AC ground of the boat. Within the boat itself, ensure that the AC ground bus is connected to the DC ground bus at exactly one place. Check and retighten as necessary all electrical connections prior to start up. 8 Disposal CAUTION! Fire hazard This device contains flammable insulation blowing gas. Only have the device removed and disposed of by a specialist. Place the packaging material in the appropriate recycling waste bins, wherever possible. Consult a local recycling center or specialist dealer for details about how to dispose of the product in accordance with the applicable disposal regulations. 9 Technical data Read these instructions completely and then plan the connections that must be made to the air conditioner (including ducting, condensate drain line, seawater inlet and outlet hoses, electrical power connections, location of the control, and seawater pump placement), to assure easy access for routing and future maintenance.

The refrigeration circuit contains a small quantity of an environmentally friendly but flammable refrigerant. It does not damage the ozone layer and does not increase the greenhouse effect. Any leaking refrigerant may ignite. This product contains fluorinated greenhouse gases. The cooling unit is hermetically sealed. Table 1: Minimum duct and grille sizes per BTU capacity

3.5 k BTU 6 k BTU 8 k BTU 10 k BTU

Minimum duct diameter

(152.4 mm) Minimum duct area

(203.2 mm) Minimum duct area

(774.2 cm²) Table 2: Operating water temperature and pressure Minimum operating water temperature 40.0°F (4.44°C) Maximum operating water temperature 80.0°F (26.66°C) Minimum operating water pressure 4.2 psi (0.29 bar) (29.00 kPa) Maximum operating water pressure 6.00 psi (0.41 bar) (41.4 kPa) Follow EPA use conditions. NOTE The unit can operate outside these conditions with reduced capacity. 10 Legal GVTX models only: To comply with IEC 60533, do not mount the product within

9.8 (3.00 m) of a receiving antenna.

11 Warranty Refer to the sections below for information about warranty and warranty support in the US, Canada, and all other regions. United States and Canada LIMITED WARRANTY AVAILABLE AT DOMETIC.COM/EN-US/TERMS-AND- CONDITIONS-CONSUMER/WARRANTY. IF YOU HAVE QUESTIONS, OR TO OBTAIN A COPY OF THE LIMITED WARRANTY FREE OF CHARGE, CONTACT: DOMETIC CORPORATION

1-800-542-2477 Asia-Pacific(APAC) countries If the product does not work as it should, please contact your retailer or the manufacturer's branch in your country (see dometic.com/dealer). The warranty applicable to your product is 1 year(s). For repair and warranty processing, please include the following documents when you send in the device:

• A copy of the receipt with purchasing date

• A reason for the claim or description of the fault Note that self-repair or nonprofessional repair can have safety consequences and might void the warranty. Australia Only Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. New Zealand only This warranty policy is subject to the conditions and guarantees which are mandatory as implied by the Consumer Guarantees Act 1993(NZ). All other regions The statutory warranty period applies. If the product is defective, please contact the manufacturer's branch in your country (see dometic.com/dealer) or your retailer. For repair and warranty processing, please include the following documents when you send in the device:

• A copy of the receipt with purchasing date

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw2 Blower

9.1 Delenes placering

• American Boat and Yacht Council (ABYC)

1 Adjustment screw2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

1 Adjustment screw 2 Blower

1 Adjustment screw 2 Blower

1 Adjustment screw2 Blower

• American Boat and Yacht Council (ABYC)

1 Adjustment screw 2 Blower

1 Adjustment screw 2 Blower

1 Adjustment screw 2 Blower

1 Adjustment screw2 Blower

1 Adjustment screw2 Blower

1 Adjustment screw 2 Blower

1 Adjustment screw2 Blower