DAMPER EQUIPPED GAS WATER HEATER A Spanish language version of these instructions is available by contacting the company listed on the rating plate. La version espanola de estas instrucciones se puede obtener al escribirle a la fabrica cuyo nombre aparece en la placa de especificaciones.
CONGRATULATIONS! You have purchased one of the finest water heaters on the market today! This installation, operation and instruction manual will explain in detail the installation and maintenance of your new Damper Equipped Flammable Vapor Ignition Resistant Gas Water Heater. We strongly recommend that you contact a plumbing professional for the installation of this water heater. We require that you carefully read this manual, as well as the enclosed warranty, and refer to it when questions arise.
TABLE OF CONTENTS Page GENERAL INFORMATION ................................................................. 4 INSTALLATION .................................................................................. 6 Locating the Water Heater ............................................................. 6 Minimum Clearances ..................................................................... 9 Venting..........................................................................................
GENERAL INFORMATION This gas-fired water heater is design certified by CSA International under the applicable American National Standard, Z21.10.1-Latest Edition or CSA 4.1Latest Edition, available from CSA International, 8501 East Pleasant Valley Road, Cleveland, OH 44131-5575, USA. This water heater must be installed in accordance with local codes. In the absence of local codes, it must be installed in compliance with the National Fuel Gas Code, ANSI Z223.
General Information continued- IMPORTANT Before proceeding, please inspect the water heater and components for possible damage. DO NOT install any damaged components. If damage is evident, please contact the supplier where the water heater was purchased, or the manufacturer listed on the rating plate for replacement parts. This water heater has been manufactured for operation at altitudes from sea level to 2000 ft (610 m) (unless otherwise specified on the water heater rating plate).
INSTALLATION Locating the Water Heater WARNING Water heaters are heat producing appliances. To avoid damage or injury, there must be no materials stored against the water heater or vent-air intake system, and proper care must be taken to avoid unnecessary contact, especially by children, with the water heater and vent-air intake components.
Installation (Locating the Water Heater) continued- Water heater corrosion and component failure can be caused by the heating and breakdown of airborne chemical vapors. Examples of some typical compounds that are potentially corrosive are: spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes and process chemicals.
Installation (Locating the Water Heater) continued- Proper venting practices must be considered when selecting a location for this water heater. For exact venting specifications, please consult the Venting section of these Installation and Operating Instructions.
Minimum Clearances WARNING Failure to adhere to these installation and operating instructions may create a hazard to life and property and will nullify the warranty. This installation MUST allow access to the front of the water heater and adequate clearance must be provided for servicing and operating this water heater. The water heater may be installed on either a combustible or noncombustible floor.
Venting WARNING The venting system must be installed properly following all local codes or in the absence of local codes, the National Fuel Gas Code, ANSI Z223.1-Latest Edition, or in Canada, The Natural Gas and Propane Installation Code, B149Latest Edition. Failure to properly install the venting system could result in property damage, personal injury, or death. NOTICE Use of cellular core PVC (ASTM F891).
Installation (Venting) continued- WARNING Carefully inspect the venting system of a replacement water heater installation before connecting to the venting system. All joints in the vent connector must be securely fastened with screws and fit tightly together. Inspect the venting system for signs of deterioration (rust and perforation) and replace any sections that are not in good condition. The chimney must be lined and in good condition.
Combustion Air Supply WARNING Liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there is a leak. Basements, crawl spaces, closets, and areas below ground level will serve as pockets for accumulation of leaking gas. Before lighting, smell all around the water heater area for gas. Be sure to smell next to the floor. IF YOU SMELL GAS: • DO NOT try to light any appliance. • DO NOT touch any electric switch; DO NOT use any telephone in your building.
Installation (Combustion Air Supply) continued- All Air from Inside the Building The confined space must be provided with two permanent openings communicating directly with an additional room(s) of sufficient volume, so that the combined volume of all spaces meets the criteria for an unconfined space. The total input of all gas utilization equipment installed in the combined space must be considered in making this determination.
Water Connections Note: BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY VALVE. After shutting off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out of the pipes while making the water connections to the water heater. After the pressure has been relieved, close the faucet. The COLD water inlet and HOT water outlet are identified on the top of the water heater.
Installation (Water Connections) continued- WARNING For protection against excessive temperatures and pressure, install temperature and pressure protective equipment required by local codes, but not less than a combination temperature and pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment or materials as meeting the requirements of the Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Su
Installation (Water Connections) continued- WARNING Hydrogen gas can be produced in an operating water heater that has not had water drawn from the tank for a long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE. To prevent the possibility of injury under these conditions, we recommend the hot water faucet to be open for several minutes at the kitchen sink before you use any electrical appliance, which is connected to the hot water system.
Gas Connections The gas supply lines must meet all requirements of the National Fuel Gas Code, ANSI Z223.1-Latest Edition, or in Canada, the Natural Gas Installation Code, CAN/CGA B149.1-Latest Edition, or Propane Installation Code, CAN/CGA B149.2-Latest Edition. The minimum permissible gas supply pressure for the purpose of input adjustment is 1 in (0.25 kPa) water column above the operating manifold pressure. See the rating plate and gas valve for the manifold pressure and gas type.
Gas Connections continued- 3. While checking for leaks, care must be taken to prevent solution from contacting the electrical connections at the control. If electrical connections at the control become wet, they must be thoroughly dried before attempting to operate the water heater. CAUTION The water heater and an individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of the system at test pressures in excess of 1/2 psi (3.5 kPa).
Electrical Connections All electrical wiring and connections must be in accordance with the National Electric Code ANSI/NFPA No. 70-Latest Edition, or the Canadian Electrical Code C22.1-Latest Edition, and any local codes which may apply. The water heater must be electrically grounded. If a flexible line cord and plug is permitted by local code, then provide a three (3) wire grounding type receptacle within 6 ft (1.85 m) of the water heater and use the flexible cord provided.
Wiring Diagram (Applies to RG1D and RG2D models) 20
Wiring Diagram (Applies to URG1D and URG2D Models) 21
GENERAL OPERATION WARNING Water heaters are heat producing appliances. To avoid damage or injury, there must be no materials stored against the water heater or vent-air intake system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater and vent-air intake system.
Lighting & Shutdown Instructions 23
Thermostat Adjustments The thermostat dial is adjusted to its lowest setting when shipped from the factory. When adjusting the thermostat, it should be remembered that lower temperature settings are more energy efficient. Rotate the thermostat dial counter-clockwise to decrease the temperature setting. Rotate the thermostat dial clockwise to increase the temperature setting. Adjust the dial until the minimum acceptable temperature is achieved.
General Operation continued- DANGER Hotter water increases the risk of scald injury. Scalding may occur within five (5) seconds at a temperature setting of 140F (60C). To protect against hot water injury, install an ASSE approved mixing valve in the water system. This valve will reduce point of discharge temperature by mixing cold and hot water in branch water lines. A licensed plumbing professional or local plumbing authority should be consulted.
General Operation (Burner Flame Check) continued- Figure 3b - Burner Assembly Used WARNING Do NOT run out of propane gas. Damage to the water heater may occur.
MAINTENANCE WARNING Water heaters are heat producing appliances. To avoid damage or injury, there must be no materials stored against the water heater or vent-air intake system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water heater and vent-air intake system.
Maintenance continued- Wire brush and/or vacuum clean the combustion chamber as needed to remove scale deposits and debris. NOTE: It is imperative for proper operation of the water heater that the inner door be replaced in the original location, making certain the resettable thermal switch is properly connected to the gas control wire leads provided. Do not block or in any way restrict jacket air inlet slots located at the bottom front of the water heater.
Maintenance continued- WARNING Do not run out of propane gas. Damage to the water heater may occur. 6. At least once a year, check the combination temperature and pressure relief valve to ensure that the valve has not become encrusted with lime. Lift the lever several times until the valve seats properly without leaking and operates freely. 7. Monthly, drain off a gallon of water to remove silt and sediment. WARNING THIS WATER MAY BE HOT. 8.
Maintenance continued- CAUTION FOR YOUR SAFETY, DO NOT ATTEMPT REPAIR OF COMBINATION GAS CONTROL, BURNERS, OR GAS PIPING. REFER REPAIRS TO A QUALIFIED SERVICE TECHNICIAN. Contact your supplier or plumbing professional for replacement parts or contact the company at the address given on the rating plate of the water heater. Provide the part name, model and serial numbers of the water heater when ordering parts.
Troubleshooting (Applies to RG1D and RG2D models) LED Status Control Status None (LED not on or flashing) Electrical power not present. One short flash every four seconds Stand-by mode, Thermostat is satisfied (no fault). Temperature demand is satisfied (no call for heat). Alternates bright and dim (Heartbeat) Thermostat calling for heat (no fault). Tank temperature below setpoint of thermostat. Weak pilot signal on last call for heat. 1. Unstable pilot. 2. Pilot tube blocked or restricted. 3.
Troubleshooting continued- (Applies to RG1D and RG2D models) LED Status Control Status Probable Cause Six flashes, three flashes, three second pause (Soft Lockout) Pilot flame extinguished, system auto-resets after five (5) minutes. 1. Unusable pilot. 2. Pilot tube blocked or restricted. 3. Oxidation build-up on pilot electrode. 4. Wire damage to pilot assembly or bad connection at gas valve. 5. Insufficient combustion air.
Troubleshooting continued- (Applies to URG1D & URG2D models) LED Status Control Status None (LED not on or flashing) Electrical power not present One short flash every four seconds Stand-by mode, Thermostat is satisfied (no fault). Temperature demand is satisfied (no call for heat). One short flash every two seconds Stand-by mode, Water heater will not respond to call for heat. Temperature demand is disabled (no call for heat).
Troubleshooting continued- (Applies to URG1D & URG2D models) LED Status Control Status Probable Cause Six flashes, three flashes, three second pause (Soft Lockout) Pilot flame extinguished, system auto-resets after five (5) minutes. 1. Unstable pilot. 2. Pilot tube blocked or restricted. 3. Oxidation build-up on pilot electrode. 4. Wire damage to pilot assembly or bad connection at gas valve. 5. Insufficient combustion air.
Troubleshooting continued- Control Sequence of Operation Startup Sequence Upon powering up, the control checks for the presence of the flammable vapor sensor. If the resistance is in the expected range, the control will begin normal operation after 5 to 8 seconds. Normal Heating Sequence 1. The thermostat senses a need for heat. 2. The damper test circuit checks the position of the damper. 3.
Installation Instructions for Potable Water Figure 4 36
Parts List Figure 5 (Applies to RG1D and RG2D models) PART NAME AND DESCRIPTION 1. Draft Hood 15. Inner Door Assembly (right side) 2. Damper 15A. High Temperature Limit Switch 3. Jacket Head Pan 16. Inner Door Assembly (left side) 4. Jacket 17. Damper Wire Harness 5. Heat Trap—Hot Water Outlet 18. Gas Control Valve 6. Magnesium Anode–-Hot Water Outlet 19. Wire Harness (FVIR / RTS) 7. Heat Trap—Cold Water Inlet 20. Outer Door 8. Flue Baffle Assembly 21. Steel Burner 9.
Parts List continued- Figure 6 (Applies to URG1D & URG2D models) PART NAME AND DESCRIPTION 1. Draft Hood 16. Gas Control Valve 2. Damper 17. Drain valve 3. Jacket Head Pan 18. Wire Harness (FVIR / RTS) 4. Jacket 19. Pilot assembly 5. Heat Trap—Hot Water Outlet 20. Outer door 6. Magnesium Anode–-Hot Water Outlet 21. Burner Assembly 7. Heat Trap—Cold Water Inlet 22. High Temperature Limit Switch 8. Flue Baffle Assembly 23. Manifold Mount 9. Dip Tube–-Cold Water Inlet 24. Feedline 10.
Installation Instructions for Potable Water And Space Heating 1. All piping components connected to this water heater for space heating applications must be suitable for use with potable water. In Massachusetts, space heating piping length must NOT exceed 50 ft (15.2 m). 2. Toxic chemicals, such as those used for boiler treatment, must NOT be introduced into potable water used for space heating. 3.
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