Rheem Professional Classic Series: Direct Vent (Horizontal Option)- Manuals

5 ● Water heaters utilizing LP gas are different from natural gas models. A natural gas water heater will not function safely on LP gas and vice versa. ● No attempt should ever be made to convert the water heater from natural gas to LP gas. To avoid possible equipment damage, personal injury or fire...

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...

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 copy can be purchased from eithe...

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 spac...

HOT 9" Min. (23 cm) Within 10 feet (305 cm) Any forced air inlet into the building 18”Min(46 cm) 36” Min. (91 cm) 18”Min.(46 cm) 12" Min. (30 cm) above grade (Higher in areas of heavy snowfall.) Vent Terminal must be located at least 12” (30.5 cm) min. above grade level and above normal snow...

10 Installing the Water Heater: 3" (7.6 cm) (90° Elbow (Steel) 6" (15.2 cm) 90° Elbow (Aluminum) Installing 6” (15.2 cm) Diameter Aluminum Elbow Install the 6” (15.2 cm) aluminum elbow over the 3” (7.6 cm) steel elbow. Be certain both are pointed in the desired direction with the 3" (7.6...

11 H1 Outside Wall Vent Terminal Base (Outside) Attaching the 6” (15.2 cm) Diameter Main Tube From the outside of the building, insert the 6” (15.2 cm) vent tube/base assembly through the hole in the exterior wall and onto the 6” (15.2 cm) elbow. Slide as needed into place. (H1). An improper seal ca...

Installing the water heater. Typical Installation Heat Trap 6" Min (15.2 cm). Vent Terminal Cap (Outside) Heat Trap 6" Min. (15.2 cm) Hot Water Outlet to Fixtures To Cold Water Supply Temperature and Pressure Relief Valve Relief Valve Discharge Line to Suitable Open Drain Expansion Tank (if ...

Installing the water heater. WARNING: Do not attempt to convert this water heater for use with a different type of gas other than the type shown on the rating plate. Such conversion could result in hazardous operating conditions. Leak Testing The water heater and its gas connections must be leak tes...

17 Installation Checklist A. Water Heater Location B. Water Supply C. Gas Supply D. Relief Valve E. Venting ❑ Close to outside wall. ❑ 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...

19 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...

20 Time/Temperature Relationship in Scalds Water Temperature Time To Produce a Serious Burn 120°F (49°C) More than 5 minutes 125°F (52°C) 1 1 / 2 to 2 minutes 130°F (54°C) About 30 seconds 135°F (57°C) About 10 seconds 140°F (60°C) Less than 5 seconds 145°F (63°C) Less than 3 seconds 150°F (66°C) Ab...

21 Water Temperature Setting… 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.The reference mark p on the rim of the temperature dial, represents an approximate water tempe...

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 wil...

23 Venting System Inspection It is recommended that the water heater’s internal flue, vent, and air pipes be inspected annually to be certain it is clean.Inspect the gas venting system and the termination cap.Make certain the vent system, vent, and air pipes is properly sealed and securely attached....

24 Problem Possible Causes What To Do Condensation This usually happens when  This is normal. After the water in the tank warms a new water heater is up, the condensation will disappear. If, however, the filled for the first time. condition persists, examine the piping and fittings for possible lea...

Replacement Parts. Instructions For Placing a Parts Order Address parts orders to the distributor or store from where the heater was purchased.All parts orders should include: The model and serial number of the water heater from the rating plate. Specify type of gas (natural or LP) as marked on the ...

IF YOU NEED SERVICE 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 ...