Rheem Direct Vent Gas Tankless Water Heater - 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 orunfamiliar with the smell of LP or natural gas, ask the gas supplier. Other conditions, such as“odorant fade”, which causes t...

6 Have the installer show you the location of the gas shut-off valve and how to shut it off if necessary. Turn off the manual shut-off valve if the water heater has been subjected to overheating, fire, flood, physical damage or if the gas supply fails to shut off. ● Read this manual entirely before ...

1” (2.5 cm) min 1” (2.5 cm) min 1” (2.5 cm) min Coaxial Vent Pipe & Air Intake WARNING: Follow vent manufacturer’s instructionwhile installing vent. Ifrequired, provideadditional clearances fromvent to combustibles pervent manufacturer’sinstruction. ! 7 Installing the water heater : This water h...

9 The water heater must be installed with a 3” or 5” diameter UL approved Category III Coaxial Stainless Steelappliance coaxial vent pipe and an appropriate adapter. Venting The installation of venting must comply with national codes, local codes and the vent manufacturer’s instructions.The water he...

Installing the water heater: Venting Through Closed Spaces If the coaxial vent piping passes through a closed space, a minimumclearance of 1” (2.5 cm) when installed horizontally or 6” (15 cm) wheninstalled vertically should be maintained between the coaxial vent pipeand combustibles and noncombusti...

D V V E FIXEDCLOS ED 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 The following information should be used for determining the proper location of the ventterminal for direct vent tankless water heaters. V V VE EN NT T T TE ER RM MIIN NA ALL X A AIIR R S SU...

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 building withprevailing winter winds. To help prevent water lines from freezing, ...

Example A: Typical Horizontal Termination w/ 1/4” per foot DOWNWARD Slope 13 Installing the water heater:

Installing the water heater: Vertical Vent Installation A fire stop plate should be installed at everypenetration of a floor or ceiling if the vent isnot running in a fire-rated shaft. Maintain therecommended air space clearance tocombustible materials and building insulation. Once the vent terminal...

15 Water Supply Connections IMPORTANT: Do notapply heat to the HOT orCOLD water connections. Ifsweat connections are used,sweat tubing to adapterbefore fitting adapter to thewater connections onheater. Any heat applied tothe water supply fittingswill permanently damagethe internal components of the ...

Installing the water heater: Water Supply Connections, continued Notice: If the water flow resistance of a shower head is too high, the burner in thewater heater will fail to ignite. Keep theshower head clean from debris that couldcause additional pressure drop. Notice: If using mixing valves on the...

Relief Valve A new pressure relief valve, complying with the Standard for Relief Valves andAutomatic Gas Shut-Off Devices for HotWater Supply Systems, ANSI Z21.22/CSA 4.4, must be installed at the hot wateroutlet connection of the water heater at thetime of installation. Local codes shallgovern the ...

T h i s w a t e r h e a t e r i s c e r t i f i e d f o ri n s t a l l a t i o n s u p t o 3 , 2 8 0 f e e t ( 1 0 0 0 m )a b o v e s e a l e v e l . T h e i n p u t r a t i n g o f t h i sw a t e r h e a t e r i s b a s e d o n s e a l e v e lo p e r a t i o n . A t h i g h e r e l e v a t i o n s ...

Remote Control Installation One (1) remote control is provided with thewater heater. Additional remote controls maybe purchased separately. Up to three (3) remotecontrols can be used with this water heater. The following are considerations fordetermining the location of the remotecontrol(s): ● ● DO ...

Electrical Connection POWER CORD: ● The electric power supply requirement for this water heater is 120 VAC/60HZ, 2 Amps. ● The water heater comes with a three (3) pinpower supply cord. Use only a power outletwith a ground terminal. ● The installation of an electric leakagebreaker is recommended. ● K...

Installing the water heater: A. Indoor Water Heater Location ❑ Close to area of vent termination. ❑ Indoors and protected from freezing temperatures. ❑ Proper clearance from combustible surfaces observed. ❑ Sufficient fresh air supply for proper operation ofwater heater. ❑ Air supply free of corrosi...

25 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 canresult in unsafe operation of the water heater, resu...

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...

27 Water Temperature Setting… Maximum water temperature occurs while the burner is on. To determine the watertemperature, turn on a hot water faucet andplace a thermometer in the water stream.Water temperature at the faucet may varydepending on season and length of pipe from the water heater. The fa...

Care and cleaning of the water heater: Routine Preventative Maintenance Properly maintained, your water heaterwill provide years of dependable trouble-free service. It is recommended that a periodicinspection of the burner, relief valve, airintake filter, water filter and ventingsystem should be mad...

CAUTION: Do not operate without thecondensate trap connected to the vent and routed to the proper drain. ! 29 Condensate Trap Inspection On a regular basis, inspect the condensatetrap to ensure there is enough water in thetrap and the condensate is draining properly. Ensure that condensate is dispos...

Draining the Water Heater WARNING: Failure to drain the waterheater can cause seriousdamage to the waterheater as well aspersonal injury. Below are instructions for draining water outof the water heater. Turn off the switch on the remote control. Close the gas shut-off valve(s). Unplug the power sup...

31 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. CAUTION: For your safety, DO NOT attempt repair of electrical wiring, gas piping, remote control, burners, vent connectors or other safety...

Error Code Guide: When an error code is displayed: ● Close the hot water faucet, turn off the switch on the remotecontrol. ● Wait for about 5 minutes before turning the switch onagain. ● Open the hot water faucet. If the error code remains in the display: ● Close the hot water faucet and turn off th...

36 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 orpreviously agreed upon service agency. In the event the firm has moved, or i...