Table of Contents
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Direct Vent Gas
Tankless Water Heater
!
WARNING: If the information in these instructions is not followed exactly,
a fire or explosion may result, causing property damage, personal injury or death.
!
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 explosion or fire.
— WHAT TO DO IF YOU SMELL GAS
●
Do not try to light any appliance.
●
Do not touch any electrical switch; do not
use any phone in your building.
●
Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
Printed in Japan
Use & Care Manual
With Installation Instructions for the Installer
The purpose of this manual is twofold: one, to provide the installer with
the basic directions and recommendations for the proper installation and
adjustment of the water heater; and two, to the owner–operator, to
explain the features, operation, safety precautions, maintenance and
troubleshooting of the water heater. This manual also includes a parts
list.
It is very important that all persons who are expected to install, operate
or adjust this water heater read the instructions carefully so they may
understand how to perform these operations. If you don't understand
these instructions or any terms within it, seek professional advice.
Any questions regarding the operation, maintenance, service or
warranty of this water heater should be directed to the seller from whom
it was purchased. If additional information is required, refer to the
section on If You Need Service.
Do not destroy this manual. Please read carefully and keep in a safe
place for future reference.
!
Recognize this symbol as an indication of Important Safety
Information!
!
California Proposition 65 Warning: This product contains
chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
CERTIFIED
R
!
Warning: This water heater is not suitable
for use in manufactured (mobile) homes!
●
If you cannot reach your gas supplier, call
the fire department.
●
Do not return to your home until authorized
by the gas supplier or fire department.
— Improper installation, adjustment,
alteration, service or maintenance can cause
property damage, personal injury or death.
Refer to this manual. Installation and service
must be performed by a qualified installer,
service agency or the gas supplier.
®
31-80813-00
AP14044 (06/06)
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Table of Contents
Related Manuals for Rheem Direct Vent Gas Tankless Water Heater
Summary of Contents for Rheem Direct Vent Gas Tankless Water Heater
- Page 1 Any questions regarding the operation, maintenance, service or warranty of this water heater should be directed to the seller from whom it was purchased. If additional information is required, refer to the section on If You Need Service.
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Page 2: Table Of Contents
READ THIS MANUAL Inside you will find many helpful hints on how to use and maintain your water heater properly. A little preventive care on your part can save you time and money over the life of your water heater. -
Page 3: Important Safety Information
Be sure to read and understand the entire Use and Care Manual before attempting to install or operate this water heater. It may save you time and money. Pay particular attention to the Safety Instructions. Failure to follow these warnings could result in serious bodily injury or death. Should you have problems understanding the instructions in this manual, or have any questions, STOP, and get help from a qualified service technician, or the local gas utility. -
Page 4: Lp Gas Models
Safety and energy conservation are factors to be considered when selecting the water temperature setting of a water heater’s remote control. Water temperatures above 125°F (52°C) can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below. - Page 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.
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Page 6: Safety Precautions
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. -
Page 7: Location, Indoor
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 either the American Gas Association, 400 North Capitol Street Northwest, Washington, DC 20001 as ANSI standard Z223.1 or National Fire Protection... - Page 8 Any questions regarding the operation, maintenance, service or warranty of this water heater should be directed to the seller from whom it was purchased. If additional information is required, refer to the section on How to Obtain Service Assistance.
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Page 9: Installation Instructions
The water heater must be installed with a 3” or 5” diameter UL approved Category III Coaxial Stainless Steel appliance coaxial vent pipe and an appropriate adapter. DANGER: Failure to install the appliance vent adapter and properly vent the water heater to the... - Page 10 UPWARD slope must always be used. A condensate trap must be installed in the horizontal section of the vent and as close as practical to the water heater in order to prevent condensate from draining back into the water heater. See the diagram on page 15 showing UPWARD slope for vertically vented water heaters.
- Page 11 X A A I I R R S S U U P P P P L L Y Y I I N N L L E E T T V V V E E N N T T T T E E R R M M I I N N A A L L Horizontal Vent Terminal Location The following information should be used for determining the proper location of the vent terminal for direct vent tankless water heaters.
- Page 12 Installing the water heater: Indoor Water Heater Caulk Rising moisture will collect under eaves. If soffit vent is too close, block off and install new 6’ vent at another location. (1.8 m) Inside Caulk 6’ (1.8 m) Corner Caulk 6’ (1.8 m)
- Page 13 (8 cm) Max. 2 Feet Support Bracket (61 cm) Condensate Trap To Drain. Vent Dispose of downward slope Max. 2 Feet Adapter condensate in (612cm) Min. 3” accordance with (82cm)V local codes from the water heater to the male end of...
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Page 14: Vertical Vent Termination Location
Installing the water heater: Vertical Vent Termination Location Only Rheem approved termination and parts should be used during installation. Vent Pipe Through Roof (30 cm) Min. 12" Above Roof (30 cm) Min. 12" Above Anticipated Snow Level. (60 cm) Max. 24"... -
Page 15: Water Connections
Using a wood screw and a washer, affix the Thermal Expansion A thermal expansion tank will be required if the water heater is installed in a closed loop system to prevent damage to heater, related piping and relief valve. Replacing the relief... - Page 16 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.
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Page 17: Relief Valve
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 govern the installation of relief valves. -
Page 18: Gas Supply
Installing the Main Remote Control: 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. Gas Supply... -
Page 19: Remote Control
Additional remote controls may remote control will allow be purchased separately. Up to three (3) remote a maximum temperature controls can be used with this water heater. setting of 120°F (49°C). Temperatures of up to The following are considerations for determining the location of the remote 140°F (60°C) can be... -
Page 20: Remote Control
Installing the Main Remote Control: WARNING: Field wiring connections and electrical grounding must comply with local codes, or in the absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFPA 70, or in Canada, Canadian Electrical Code, CSA C22.1 Part 1. -
Page 21: Electrical Connection
The electric power supply requirement for this water heater is 120 VAC/60HZ, 2 Amps. ● The water heater comes with a three (3) pin power supply cord. Use only a power outlet with a ground terminal. ● The installation of an electric leakage breaker is recommended. -
Page 22: Typical Installation
Installing the water heater: Typical Installation of Water Heater (Venting Required) 90° Elbow Vent Adapter To Hot Water Faucet(s) Water Filter Drain Valve Union Drain Valve Cold Water Supply Shut-off V a lve Drain Hose (To Suitable Drain) Vacuum Relief Valve... -
Page 23: Pipe Insulation
This water heater does not store water instructions included making an insulation blanket unnecessary. with the kit must be carefully followed. -
Page 24: Installation Checklist
Water pipes are insulated and protected from freezing. C. Gas Supply ❑ Gas type matches rating plate. ❑ Gas supply pressure is sufficient for the water heater. ❑ Gas line equipped with shut-off valve, union and sediment trap. ❑ Approved pipe joint compound used. -
Page 25: Lighting Instructions
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, resulting in property damage, personal injury or death. -
Page 26: Operating Instructions
Operating the water heater: Safety Precautions Do turn off manual gas shut-off valve if water heater has been subjected to overheating, fire, flood, physical damage or if the gas supply fails to shut off. Do Not turn on water heater unless water and gas supplies are fully opened. - Page 27 If the water heater has been subjected to fire, flood, physical damage, or has been under water, turn off the manual gas shut-off...
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Page 28: Care And Cleaning
Housekeeping Before performing Housekeeping tasks to DANGER: Shock Hazard this water heater, turn the unit off and Make sure the electrical disconnect the power supply. power to the water heater is Vacuum around the water heater for dust, off to avoid potential serious dirt and lint on a regular basis. -
Page 29: Vent Inspection
If any unusual burner operation is noted, the water heater should be shut off until qualified service assistance can be obtained. 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. -
Page 30: Draining
Freeze Protection Where the water heater may be exposed to WARNING: Failure freezing conditions, even for a short period of to drain the water time, be sure to drain all water from the unit... -
Page 31: Troubleshooting Tips
Fan continues to rotate after hot water faucet is closed. 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. -
Page 32: If You Need Service
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. -
Page 33: Parts List
Replacement Parts: Direct Vent Water HeaterInstructions For Placing a Parts Order WARNING: For your safety, DO NOT attempt to Front Sid disassemble this unit for any reason. Film Motor Blower Circuit Outlet Drain Nozzle Heat Transfer Pipe Heat Exchanger Gas Supply Water Flow Solenoid Unit Cover Panel... -
Page 34: Dip Switch Adjustment
● Turn on the remote control, gas and water shutoff valves. ● Check and ensure safe operation and performance of the water heater. See steps below to LIMIT maximum water temperature setting to 120°F (49°C). Follow first four bullets points listed above, then continue as listed below: ●... - Page 35 Notes:...
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Page 36: If You Need Service
Manufacturer’s National Service Department at the following address: When contacting the manufacturer, the following information will be requested: a. Model and serial number of the water heater as shown on the rating plate attached to the front panel of the heater.