Use And Care Manual

ManualsBrandsRuud ManualsCommercial Water Heaters30 Gallon Light Duty Electric Commercial Short Water Heater

Printed in USA

AP11564-11 (08/13)

WITH INSTALLATION INSTRUCTIONS FOR THE INSTALLER

Light Duty Commercial Electric Water Heater

USE & CARE MANUAL

LISTED

786H

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

“How to obtain service assistance.”

NOTICE: This water heater is designed for use in a commercial application and the installation and maintenance of it should be performed by quali-

fied, 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.

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 Informa-

tion!

Summary of content (12 pages)

PAGE 1
Light Duty Commercial Electric Water Heater USE & CARE MANUAL ® LISTED 786H 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, 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.
PAGE 2
Safety Information Safety Precautions. . . . . . . 3 FOR YOUR RECORDS Write the model and serial numbers here: # # You can find them on a label on the appliance. Staple sales slip or cancelled check here. Installation Instructions Location . . . . . . . . . . . . . . . 4 Proof of the original purchase date is needed to obtain service under the warranty. Water Connections. . . . . . . 4 Electrical Connections. . 5, 6 Operating Instructions Safety Controls. . . . . . . .
PAGE 3
! General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. Pay particular attention to the following General Safety Precautions. Failure to follow these warnings could result in serious bodily injury or death . Should you have any problems understanding the instructions in this manual, STOP, and get help from a qualified installer or service technician or the local utility.
PAGE 4
Introduction The location chosen for the water heater must take into consideration the following: ! CAUTION The water heater should not be located in an area where leakage of the tank or connections will 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 catch pan, adequately drained, be installed under the water heater.
PAGE 5
Installation Union Heat trap 6" (15.24 cm) minimum Temperature & Pressure Relief Valve Cover and Label Ground Screw Union WARNING TANK MUST BE FULL OF WATER BEFORE HEATING ELEMENTS ARE ENERGIZED. SEE INSTALLATION INSTRUCTIONS Hot water outlet to fixtures Electrical junction box (use only copper conductors) Anode Insert Electrical Leads through Snap Bushing into Junction Box Heat trap 6" (15.
PAGE 6
Installation In order to conform with U.L. requirements, it is absolutely necessary that the Junction Box Kit be installed per figure 3 above. An opening for either 1/2” or 3/4” electrical fitting is provided for field wiring connections. Refer to Figure 3. ! WARNING Application of any external insulation to this water heater will require careful attention to the following: • Do not cover the temperature and pressure relief valve. • Do not cover jacket access panels to thermostats and heating elements.
PAGE 7
Operation SAFETY PRECAUTIONS A. Do turn off power to water heater if it has been subjected to over heating, fire, flood or physical damage. ! 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).
PAGE 8
Operation‑‑ In order to drain water heater, turn off cold water supply, then it is necessary to open a hot water faucet or lift the handle on the relief valve to admit air to the tank. Attach a garden hose to the drain valve on the water heater and direct the stream of water to a drain where it will do no damage. 3. EMERGENCY INSTRUCTIONS — ! WARNING If water heater has been subjected to flood,fire,or physical damage, turn off power and water to water heater.
PAGE 9
Trouble Shooting Guide NATURE OF TROUBLE POSSIBLE CAUSE SERVICE No Hot Water 1. 2. 3. 4. Manual switch turned off Improper Wiring ** No Power — blown fuse or circuit breaker tripped a. Shorted wiring ** b. Circuit overloaded ** c. Improper wiring ** d. Grounded element or thermostat ** Manual Reset Limit (ECO) open a. Thermostat(s) defective ** b. Thermostat out of calibration ** c. Heat build-up due to loose wires ** d.
PAGE 10
Replacement Parts List Light Duty Commercial Models Tall or Short Versions Instructions for placing a Parts Orders: Address parts orders to the distributor or store from where the heater was purchased. All parts orders should include: 1. Model number and Serial number of heater (from rating plate). 2. Specify voltage and wattage as marked on rating plate. 3. Part Description (as noted at right) and number of parts desired.
PAGE 11
Cavity Insert Instructions The following instructions are intended for qualified service personnel ONLY, and should only be done when necessary. In order to replace the thermostat or heating element, remove the cavity insert crossbar by following the instructions below: 1. Turn off the power to the water heater. 2. Remove the jacket access panel(s) and insulation. 3. Rotate the crossbar up and down until it breaks away from the remainder of the cavity insert.
PAGE 12
Wiring Diagrams — Therm-O-Disc Thermostats (Type 59T) 1 2 4 1 BLACK BLACK RED 2 1 3 2 4 2 4 1 4 1 4 1 4 2 JUNCTION BOX UPPER THERMOSTAT & HIGH TEMP. LIMIT (ECO) BLUE YELLOW BLUE TM 1 YELLOW JUNCTION BOX RED BLACK 2 1 3 1 3 2 4 2 4 BLACK RED 1 2 1 1 1 2 2 2 2 LOWER HEATING ELEMENT 1 LOWER THERMOSTAT F IG. C FIG. D 2 LOWER HEATING ELEMENT LOWER HEATING ELEMENT LOWER HEATING ELEMENT SINGLE ELEMENT FIG.