Rheem Professional Classic Series: Ultra Low NOx Power Vent- Manuals

5 LP and Natural gas have an odorant added to aid in detecting a gas leak. Some people may not physically be able to smell or recognize this odorant. If you are unsure or unfamiliar with the smell of LP or natural gas, ask the gas supplier. Other conditions, such as “odorant fade”, which causes the ...

6 IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING. ! WARNING! For your safety, the information in this manual must be followed to minimize the risk of fire or explosion, electric shock, or to prevent property damage, personal injury, or loss of life. FOR INSTALLATIONS IN THE STATE O...

Combustion Air Inlet Openings Installing the water heater. This water heater must be installed in accordance with these instructions, local codes, utility company requirements, and/or in the absence of local codes, use the latest edition of the American National Standard/National Fuel Gas Code. A co...

8 Installing the water heater. Combustion and Ventilation Air Ventilation (ambient) air temperature must be 100°F or less. Proper operation of the water heater requires air for combustion and ventilation. Provisions for combustion and ventilation air must comply with referenced codes and standards.D...

Thermal Expansion Determine if a check valve exists in the inlet water line. Check with your local water utility company. It may have been installed in the cold water line as a separate back flow preventer, or it may be part of a pressure reducing valve, water meter or water softener. A check valve ...

10 Installing the water heater. A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22, is supplied and must remain in the opening provided and marked for the purpose on the w...

12 Installing the water heater. The water heater must be installed with the factory supplied blower assembly in place. Venting The water heater must be vented to the outdoors as described in these instructions. DO NOT connect this water heater to an existing vent or chimney - it must be vented separ...

13 Maximum and Minimum Vent Lengths for Residential 40 & 50 Gallon Power Vents NOTICE: The mixing of 2" and 3" vent pipe is not recommended. If 3" pipe is used, a 2" to 3" reducer fitting is recommended at the rubber coupling. This water heater is supplied with a two-inch Sch...

14 Installing the water heater. Additional Considerations Do Not install vent terminal under any patio or deck. To help prevent moisture from freezing on walls and under eaves, do not locate vent terminal on the side of a build ing with prevailing winter winds. When terminating the vent pipe through...

15 NOTICE: All pipe, fittings, solvent cement, primers and procedures must conform to American National Standards Institute and American Society for Testing and Materials (ANSI/ASTM) standards. Vertical Vent Installation Once the vent terminal location has been determined, make a hole through the ro...

16 Installing the water heater. All joints in the vent piping must be properly sealed and the following materials are recommended:PVC materials should use ASTM D2564 grade cement.CPVC materials should use ASTM F493 grade cement.ABS materials should use ASTM D2235 grade cement.Cleaner-Primer and Medi...

17 Wiring If local codes permit, the water heater may be connected to electric service with the power cord provided (DO NOT use an extension cord). A grounded receptacle is required.If local codes do not permit the use of cord connections, a 120 V, 50/60 Hz power supply, with suitable disconnecting ...

18 For increased energy efficiency, some water heaters have been supplied with two 24” sections of pipe insulation. Please install the insulation, according to the illustrations above, that best meets your requirements. Typical vertical piping arrangement Typical horizontal piping arrangement Hot an...

19 Installing the water heater continued..... DO ❑ DO check inlet gas pressure to ensure that it is within the range specified on the rating plate. ❑ DO provide adequate air for combustion and ventilation as discussed in the Use and Care Manual and the National Fuel Gas Code. ❑ DO maintain proper cl...

Installation Checklist A. Water Heater Location B. Water Supply C. Gas Supply D. Relief Valve E. Venting ❑ Close to area of vent. ❑ Indoors and protected from freezing temperatures. ❑ Proper clearance from combustible surfaces observed and water heater not installed on carpeted floor. ❑ Sufficient f...

Tee fitting for vertical hot water supply lines. Hot water supply to house From HOT outlet on water heater Hot water supply to heating unit Supplemental instructions for gas water heaters installed in potable water/space heating applications. Local codes or plumbing authority requirements may vary f...

22 Lighting the water heater. Before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the water heater resu...

23 Safety Precautions Do turn off manual gas shut-off valve if water heater has been subjected to over heating, fire, flood, physical damage or if the gas supply fails to shut off. Do Not turn on water heater unless it is completely filled with water. Do Not turn on water heater if cold water supply...

25 Sequence of Operation… 1. During initial start-up or a call for heat, the control will verify the vacuum switch is open. 2. Once the control verifies the blower vacuum switch is open, the control will energize the blower motor for the pre-purge sequence (approximately 5 seconds). 3. The control w...

26 Care and cleaning of the water heater. Draining the Water Heater ! CAUTION: Shut off gas to the water heater at the gas control (thermostat) gas cock or manual shut-off valve before draining water. ! DANGER: Before manually operating the temperature and pressure relief valve, make certain no one ...

27 Housekeeping Visually inspect the pilot.To ensure sufficient ventilation and combustion air supply, proper clearances must be maintained. When installed in a closet, DO NOT block or obstruct any of the combustion air inlet openings located around the perimeter of the water heater. A minimum of 1”...

28 Vacation and Extended Shut-Down If the water heater is to remain idle for an extended period of time, the power and water to the appliance should be turned off to conserve energy and prevent a build-up of dangerous hydrogen gas.The water heater and piping should be drained if they might be subjec...

29 Before You Call For Service… Troubleshooting TipsSave time and money! Review the charts on the following pages first and you may not need to call for service. This water heater incorporates a combustion shut off device that shuts the operation of the water heater down if undesirable combustion co...

31 Gas Valve Error Codes CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON. CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING. C...

32 Blower Assembly ** Heat Trap Nipple ** May differ in actual appearance. Replacement Parts. For 40 and 50 gallon models using natural or LP gas. Instructions For Placing a Parts Order Temperature and pressure relief valve Gas Control (Thermostat) Dip tube Dip tube gasket Anode rod Rubber Coupling ...

36 1. Should you have any questions about your new water heater, or if it requires adjustment, repair, or routine maintenance, it is suggested that you first contact your installer, plumbing contractor or previously agreed upon service agency. In the event the firm has moved, or is unavailable, refe...