Rheem Residential Electric Models Use & Care Manual Download Page 2

Table of Contents

General Safety Precautions

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Introduction

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation Instructions

Thermal Expansion  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Water Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Temperature and Pressure Relief Valve  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Drain Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Filling Water Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Electrical Connections  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Wiring Diagrams  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Pipe Wrap Energy Kit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation Checklist  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Operation

Safety Precautions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Thermal Performance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Setting the Water Temperature  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Safety Controls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Emergency Instructions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Vacation and Long Time Shut-Down  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Draining the Water Heater  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Maintenance

Routine Preventive Maintenance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Temperature and Pressure Relief Valve  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Heating Elements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Trouble Shooting Guide

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Wiring Schematic Diagrams

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Warranty

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Separate Supplement

Specifications

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Separate Supplement

Repair Parts

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Separate Supplement

Abbreviations found in this Instruction Manual

U.L. — Underwriters Laboratories, 333 Pfingsten Rd., Northbrook, IL 60062
National Electrical Code — This publication is available from your local government, public library, electric company, or by writing to U.L. 
A.N.S.I. — American National Standards Institute
A.S.M.E. — American Society of Mechanical Engineers.

Summary of Contents for Residential Electric Models

Page 1: ...es a parts list sup plement It is imperative that all persons who are expected to install maintain operate or adjust this water heater read the instructions carefully so that they may understand how t...

Page 2: ...Shut Down 9 Draining the Water Heater 10 Maintenance Routine Preventive Maintenance 11 Temperature and Pressure Relief Valve 11 Heating Elements 12 Trouble Shooting Guide 13 Wiring Schematic Diagrams...

Page 3: ...operating properly you have properly installed the drain pipe on the temperature and pressure relief valve the vacu um relief valve has been installed and you have complete ly filed the water heater w...

Page 4: ...result in damage to the area adjacent to it or to lower floors of the structure Where such areas cannot be avoided it is recommended that a suitable drain pan adequately drained be installed under the...

Page 5: ...COLD Inlet Hex Union Nut HOT Outlet Hex Union Nut T P Relief Valve COLD Inlet Hex Union Nut HOT Outlet Hex Union Nut T P Relief Valve COLD Inlet Hex Union Nut Hot Water Outlet Cold Water Inlet Shut Of...

Page 6: ...tion between the extension fitting and the water heater uses a seal ring If unions are not used on the water supply lines the extension fitting can be removed from the heater to accommodate final conn...

Page 7: ...heck all plumbing work for leaks and repair as necessary before proceeding with installation Tank MUST BE full of water before power is turned on Heating ele ments WlLL BE DAMAGED if energized for eve...

Page 8: ...he connections Tank MUST BE full of water before power is turned on Heating elements WlLL BE DAMAGED if energized for even a short time while tank is dry The water heater s warranty does not cover dam...

Page 9: ...thorized energy saving devices may short en the life of the water heater and may endanger life and property The manufacturer disclaims any responsibility for such loss or injury resulting from the use...

Page 10: ...usion non metallic water heaters are designed and built to provide years of service Having them properly installed and accurately adjusted is essential if they are to perform reliably in the many chal...

Page 11: ...heater remove jacket access panel and insulation and the access panel and insulation to expose the Thermostat and High Limit Switch Refer to Figure 9 The plastic personnel protector SHOULD NOT be rem...

Page 12: ...hen turn off cold water supply Next it is necessary to open a hot water faucet or lift the han dle on the relief valve to admit air to the tank and KEEP OPEN Attach a garden hose to the drain valve on...

Page 13: ...need replacing use only a valve specified by local codes but not less than a new combina tion temperature and pressure relief valve complying with the Standard for Relief Valves and Automatic Gas Shu...

Page 14: ...nt for removal lift up the hinged portion of the ther mostat protective cover by gently pulling the lower corners up and away from the thermostat Be careful to avoid pulling the thermostat from its mo...

Page 15: ...esulting from operation with an empty or partially empty tank Reference is made to the limited warranty for com plete terms and conditions After a very long shut down period the water heater s operati...

Page 16: ...nting plate Inspect and insure that retaining spring s or mounting screws hold thermostat s tightly to mounting plates 5 Element not installed with tubes at lowest position Inspect and repair Up arrow...

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