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Commercial Point-of-Use Electric Water Heater
USE & CARE MANUAL
WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR
!
Do Not Destroy this Manual. Please read carefully and
keep in a safe place for Future Reference.
!
NOTICE: This water heater is designed for use in a commercial application and the installation and maintenance of it
should be performed by qualified, licensed service personnel. If the foregoing assumption is not appropriate, then we
recommend that you obtain and retain our Residential Use & Care Manual.
!
CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
Printed in USA
The purpose of this manual is twofold: one, for
the installing contractor, to provide requirements
and recommendations for the proper installation
and adjustment of the water heater; and two, for
the owner-operator, to explain the features, op-
eration, safety precautions, maintenance and
trouble shooting of the water heater. This man-
ual also includes replacement parts information.
It is imperative that all persons who are expect-
ed to install, operate or adjust this water heater
read the instructions carefully so that they may
understand how to do so.
!
Recognize this symbol as an Indication of Important
Safety Information!
®
LISTED
786H
AP12129-4 (01/05)
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Table of Contents
Related Manuals for Rheem Commercial Point-of-Use Electric Water Heater
Summary of Contents for Rheem Commercial Point-of-Use Electric Water Heater
- Page 1 Commercial Point-of-Use Electric Water Heater USE & CARE MANUAL ® LISTED 786H WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR The purpose of this manual is twofold: one, for the installing contractor, to provide requirements and recommendations for the proper installation and adjustment of the water heater; and two, for...
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Page 2: General Safety Precautions
General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. It may save you time and cost. Pay particular attention to the General Safety Precautions. 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 installer, service technician, or the local electric utility. -
Page 3: Local Installation Regulations
Introduction The location chosen for the water heater must take into consideration the lower floors of the structure. Where such areas cannot be avoided, it is following: recommended that a suitable catch pan, adequately drained, be installed under the water heater. LOCAL INSTALLATION REGULATIONS This water heater must be installed in accordance with these instructions, local NOTE: Auxiliary catch pan installation MUST conform to local codes. - Page 4 Installation Vacuum Relief Valve Union (Not Supplied) Recommended Unions Temperature Heat Trap Anode Pressure 6" Min. Relief Valve Hot Water If required, install per local codes Outlet to Fixtures and valve manufacturer’s instructions. Temperature & Pressure Shut-Off Valve Relief Valve Cold Water Supply Power Supply Cord gal.
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Page 5: Installation Checklist
Installation grounded receptacle on a branch circuit with copper conductors, an over separate conductor for grounding. It should be attached to the ground terminals of the water heater and the electrical distribution box. current protection device and a suitable disconnect means. If desired, straight field wiring connections can be made to these models by removing WARNING the access cover on front of the heater and disconnecting the cord set from... -
Page 6: Operation
Operation SAFETY PRECAUTIONS A. Do turn off power to water heater if it has been subjected to over CAUTION heating, fire, flood or physical damage. Hydrogen gas can be produced in a hot water system served by this B. Do Not turn on water heater unless it is filled with water. water heater that has not been used for a long period of time (generally two weeks or more). -
Page 7: Emergency Instructions
Operation cover SHOULD NOT be removed . (Refer to Fig. 4.) Press red In order to drain water heater, turn off cold water supply, then it is “RESET” button. Replace insulation and jacket access panel before necessary to open a hot water faucet or lift the handle on the relief valve turning on power to water heater. -
Page 8: Replacement Parts List
Replacement Parts List Instructions for placing a Parts Orders: Address parts orders to the distributor or store from where the heater was purchased. Top Connect Models All parts orders should include: 1. Model number and Serial number of heater (from rating plate). 120 or 240 Volt Operation 2. - Page 9 Replacement Parts List Instructions for placing a Parts Orders: Side Connect Models Address parts orders to the distributor or store from where the heater was purchased. 120, 208, 240, 277 or 480 All parts orders should include: 1. Model number and Serial number of heater (from rating plate). Volt Operation 2.
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Page 10: Troubleshooting Guide
Trouble Shooting Guide NATURE OF TROUBLE POSSIBLE CAUSE SERVICE No Hot Water 1. Manual switch turned off Turn to ON 2. Improper Wiring ** Rewire per Wiring Diagram 3. No Power — blown fuse or circuit breaker tripped a. Shorted wiring ** Replace or repair b. - Page 11 THIS PAGE WAS INTENTIONALLY LEFT BLANK.
- Page 12 Wiring Diagrams Therm-O-Disc Thermostats (Type 59T) TO PROPERLY GROUNDED BRANCH CIRCUIT BRANCH CIRCUIT RECEPTACLE ON BRANCH CIRCUIT TO ELECTRICAL TO ELECTRICAL TO ELECTRICAL DISTRIBUTION PANEL DISTRIBUTION PANEL DISTRIBUTION PANEL THERMOSTAT THERMOSTAT THERMOSTAT & HIGH TEMP. & HIGH TEMP. & HIGH TEMP. LIMIT (ECO) LIMIT (ECO) LIMIT (ECO)