Rheem Professional Classic Plus Series: Ultra Low NOx Powered Damper- 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 OF ...

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 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. NOTICE: If the water heater is installed in an unconfined spa...

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...

Installing the water heater. Wiring Diagram CAUTION! Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING! R L C N DAMPER END SWITCHES END SWITCHES TRANSFORMER 3 x 2 CONNECTOR VALVE P1 P3 P2 ...

14 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. DO ❑ DO check inlet gas pressure to ensure that it is within the range specified...

15 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. ❑ Sufficien...

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/space heating applications. Local codes or plumbing authority requirements may vary from th...

17 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...

18 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...

19 Maximum water temperatures occur just after the burner has shut off. To determine the water temperature, turn on a hot water faucet and place a thermometer in the water stream. A condition known as “stacking” or “layering” can occur when a series of short and frequent hot water draws are taken. T...

20 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 will...

21 Venting System Inspection The water heater’s internal flue must be inspected annually to be certain it is clean by removing the damper and flue baffle.When reinstalling the flue baffle make certain it is hung securely by its hanger at the top of the flue way.Reinstall the flue damper and the draf...

22 Before You Call For Service… CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or other safety devices. Refer repairs to qualified service personnel. Troubleshooting TipsSave time and money! Review the charts on the following pages fi...

24 Gas Valve LED 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. CAU...

Replacement Parts. For 38 and 48 gallon models using natural gas. Instructions For Placing a Parts Order Flue Damper * Heat Trap Nipple Temperature and pressure relief valve Gas Control (Thermostat) Dip tube Dip tube gasket Anode rod Draft Hood Drain valve Heat Trap Nipple *Burner Jacket Door Inner ...

IF YOU NEED SERVICE 28 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 ...