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Electric Point of Use
Water Heaters
IMPORTANT SAFETY INSTRUCTIONS
WARNING—When using electrical appliances, basic safety precautions to reduce the risk of fire, electric shock, or injury to persons
should be followed, including:
READ ALL INSTRUCTIONS BEFORE USING THIS
WATER HEATER.
The cord and plug connected water heater covered in this
1
manual (2
/
gallon models) must be grounded. Connect
2
only to properly grounded outlet. See "Electrical
Connections" section on page 8.
Install or locate this water heater in accordance with the
provided installation instructions.
Use this water heater only for its intended use as
described in this manual.
As with any appliance, close supervision is necessary
when used by children.
Printed in USA
Use & Care Manual
With Installation Instructions for the Installer
®
LISTED
786H
2½ through 30 Gallon Capacity
120 and 240 Volt Models
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, for 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 imperative 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 do not
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.
Do Not use an extension cord set with this water heater. If
no receptacle is available adjacent to the water heater,
contact a qualified electrician to have one properly installed.
Do Not operate this water heater if it has a damaged cord
or plug, if it is not working properly, or if it has been
damaged or dropped.
This water heater should be serviced only by qualified
service personnel. Contact nearest authorized service
center for examination, repair or adjustment.
SAVE THESE
INSTRUCTIONS
AP10227-11 (01/05)
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Table of Contents
Related Manuals for Rheem PROE20 1 RH POU
Summary of Contents for Rheem PROE20 1 RH POU
- Page 1 Use & Care Manual With Installation Instructions for the Installer Electric Point of Use Water Heaters 2½ through 30 Gallon Capacity 120 and 240 Volt Models 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;...
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Page 2: Table Of Contents
Safety Information FOR YOUR RECORDS Safety Precautions..3, 4 Write the model and serial numbers here: You can find them on a label on the appliance. Staple sales slip or cancelled check here. Proof of the original purchase date is needed to obtain service under Installation Instructions the warranty. - Page 3 IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING. WARNING! WATER TEMPERATURE ADJUSTMENT Safety and energy conservation are factors to be considered when selecting the water temperature setting of water heater’s thermostat. Water temperatures above 125°F can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below.
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Page 4: Safety Precautions
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. -
Page 5: Location
Installing the water heater. The location chosen for the water heater must take into consideration the following: Local Installation Regulations This water heater must be installed in Electrical Code. It is available from some accordance with these instructions, local local libraries or can be purchased from codes, utility codes, utility company the National Fire Protection Association, requirements or, in the absence of local... -
Page 6: Water Connections
Installing the water heater. Thermal Expansion Determine if a check valve exists in the inlet valve, causing it to operate during each heating It may have been installed in the water line. cycle. Thermal expansion, and the resulting cold water line as a separate back flow rapid and repeated expansion and contraction of preventer, or it may be part of a pressure components in the water heater and piping... - Page 7 Typical Installation Vacuum Relief Valve Unions Recommended Union Temperature & (Not Supplied) heat trap pressure relief 6″ minimum valve Anode Hot water outlet to fixtures If required, install per local codes and valve manufacturer’s instructions. Temperature & pressure relief Power supply Shut-off valve Jacket valve...
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Page 8: Electrical Connections
Condensation can form on the tank when Additional information on this subject it is first filled with water. Condensation may be found at www.rheem.com under might also occur with a heavy water draw “Library”. Scroll down to the Technical and very cold inlet water temperature. - Page 9 Insulation Blankets Insulation blankets, available to the CAUTION: If local codes require the WARNING: If local general public, for external use on electric application of an external insulation codes require external water heaters are not necessary. The blanket to this water heater, pay careful application of insulation purpose of an insulation blanket is to attention to the following so as not to...
- Page 10 Installing the water heater. Relief Valve Insulation Installation CAUTION: Ensure the T&P Valve opening is not obstructed by the insulation. Typical top connection arrangement Typical side connection arrangement For increased energy efficiency, some Slip the insulation cover over the T&P water heaters have been supplied with Valve through the center hole and align a 2-3/8”...
- Page 11 Installation Checklist A. Water Heater Location Close to area of heated water demand. Indoors and protected from freezing temperatures. Area free of flammable vapors. Provisions made to protect area from water damage. Sufficient room to service heater. B. Water Supply Water heater completely filled with water.
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Page 12: Operating Instructions
Operating the water heater. CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE!! To dissipate such gas and to reduce risk of injury, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system. -
Page 13: Water Temperature
Water Temperature Setting The temperature of the water in the water Water temperatures above 125°F DANGER: There is a hot heater can be regulated by setting the can cause severe burns or death from water scald potential if the temperature dial of the adjustable surface scalding. -
Page 14: Draining
Care and cleaning of the water heater. Draining the Water Heater In order to drain the water heater, turn off CAUTION: Shut off power to the water the cold water supply. Open a hot water heater before draining water. faucet or lift the handle on the relief valve DANGER: Before manually operating to admit air to the tank. -
Page 15: Troubleshooting Tips
Before You Call For Service… Troubleshooting Tips Save time and money! Review the chart on this page first and you may not need to call for service. Problem Possible Causes What To Do Water conditions in your Remove and clean the heating elements. Rumbling noise home caused a build up of scale or mineral deposits... -
Page 16: Parts List
Replacement Parts. For 2 gallon models with single elements. Instructions For Placing a Parts Order Address parts orders to the distributor or Part description (as noted below) and store where the heater was purchased. number of parts desired. All parts orders should include: CAUTION: For your safety DO NOT attempt repair of electrical wiring, The model and serial number of the... - Page 17 For 6, 10, 20 gallon models with single elements. Instructions For Placing a Parts Order Address parts orders to the distributor or Part description (as noted below) and store where the heater was purchased. number of parts desired. All parts orders should include: CAUTION: For your safety DO NOT attempt repair of electrical wiring, The model and serial number of the...
- Page 18 Replacement Parts For 30 gallon models with single and double elements. Instructions For Placing a Parts Order Address parts orders to the distributor or Part description (as noted below) and store where the heater was purchased. number of parts desired. All parts orders should include: CAUTION: For your safety DO NOT attempt repair of electrical wiring,...
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Page 19: If You Need Service
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 unavailable, refer to the telephone directory, commercial listings or local utility for qualified service assistance. -
Page 20: Wiring Diagram
Wiring diagrams. Therm-O-Disc Thermostats (Type 59T) Grounding conductor may be required. Refer to Wiring Section of Manual FIG. A FIG. B DOUBLE ELEMENT BRANCH CIRCUIT BRANCH CIRCUIT DOUBLE ELEMENT TO ELECTRICAL TO ELECTRICAL DISTRIBUTION PANEL SIMULTANEOUS OPERATION DISTRIBUTION PANEL NON-SIMULTANEOUS BRANCH CIRCUIT BRANCH CIRCUIT TO ELECTRICAL...