Rheem PHH-25ROF- Manuals

5 Both 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...

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 ...

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...

Manual Appliance Gas Shut-off Valve Wood Screw x 5pcs. Washer x 4 pcs. Use & Care Manual Tankless Unit FOR YOUR SAFETY! — Do not store or use gasoline or other flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance. To do so may result in an exp...

9 D V V E FIXE D CLO SED OPE RAB LE OPE RAB LE FIXE D CLOS ED v v B L F C B v v v X B B B A J B I H X v M K v G A V Vent terminal X air Supply inlet area Where terminal iS nOt permitted Horizontal Vent Terminal Location The following information should be used for determining the proper location of ...

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. To help prevent water lines from freezing...

11 Water Supply Connections IMPORTANT: Do not apply heat to the HOT or COLD water connections. If sweat connections are used, sweat tubing to adapter before fitting adapter to the water connections on heater. Any heat applied to the water supply fittings will permanently damage the internal componen...

Water Supply Connections, continued Notice: If the water flow resistance of a shower head is too high, the burner in the water heater will fail to ignite. Keep the shower head clean from debris that could cause additional pressure drop. Notice: If using mixing valves on the outlet, choose one that p...

Relief Valve A new pressure relief valve, complying with the Standard for Relief Valves and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22/ CSA 4.4, must be installed at the hot water outlet connection of the water heater at the time of installation. Local codes shall gover...

Remote Control Installation One (1) remote control is provided with the water heater. Additional remote controls may be purchased separately. Up to three (3) remote controls can be used with this water heater.The following are considerations for determining the location of the remote control(s): ● D...

Installing the Main Remote Control: Electrical Connection POWER CORD ● The electric power supply requirement for this water heater is 120 vAC/60HZ, 2 Amps. ● A power supply cord is not supplied with the water heater. Use only a power outlet with a ground terminal. ● The installation of an GFCI (Grou...

18 Installing the water heater: Typical Installation of Water Heater NOTICE: The National Fuel Gas Code (NFGC) and B149 mandates a manual gas shut-off valve: See NFGC/B149 for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided an...

19 Installing the water heater: For increased energy efficiency, use pipe insulation. Please install the insulation according to the diagram above, making sure to insulate all the way to the top. Do not cover any drain or pressure relief valve(s). Do’s ❑ Do follow all installation instructions cover...

A. Outdoor Water Heater Location ❑ Outdoor water heaters must be installed outdoors. ❑ Protected from freezing temperatures. ❑ Proper clearance from combustible surfaces observed . ❑ Sufficient fresh air supply for proper operation of water heater. ❑ Air supply free of corrosive elements and flammab...

21 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, res...

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) About...

23 * Temperatures 85°F(29°C) and above 120°F (49°C) can be achieved with the Main (UMC-117) remote control. See page 30 and 31 for minimum and maximum temperature adjustment. °F PRIORITY POWER ON/OFF Higher (Hotter) Lower (Cooler) 100 102 104 106 108 110 112 114 116 118 120* 38 39 40 41 42 43 44 46 ...

Care and cleaning of the water heater: Housekeeping Before performing Housekeeping tasks to this water heater, turn the unit off and disconnect the power supply.vacuum around the water heater for dust, dirt and lint on a regular basis. Clean the water heater and remote control by using a damp soft c...

Draining the Water Heater WARNING: Failure to drain the water heater can cause serious damage to the water heater as well as personal injury. Below are instructions for draining water out of the water heater. Turn off the switch on the remote control. Close the gas shut-off valve(s). Unplug the powe...

27 Before You Call For Service… Troubleshooting Tips Save time and money! Review the charts on the following pages first and you may not need to call for service. CAUTION: For your safety, DO NOT attempt repair of electrical wiring, gas piping, remote control, burners, vent connectors or other safet...

Replacement Parts: Outdoor Water Heater Instructions For Placing a Parts Order Address parts orders to the distributor or store where the water 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...

30 The content on this page is intended for use by qualified installation/service personnel ONLY. WARNING: Improper adjustment, alteration, service or maintenance can cause property damage, personal injury, or death. ! DANGER: Hotter water increases the potential for Hot Water SCALDS. Time/Temperatu...

31 The content on this page is intended for use by qualified installation/service personnel ONLY. WARNING: Improper adjustment, altera- tion, service or maintenance can cause prop- erty damage, personal injury, or death. Minimum Temperature Adjustment by the Main Remote Control (UMC-117, USC1-117 an...

32 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 ...