State Water Heaters

Instruction Manual
RESIDENTIAL ELECTRIC WATER HEATERS FOR POTABLE WATER HEATING ONLY NOT SUITABLE FOR SPACE HEATING

PREPARING FOR THE INSTALLATION

1. Read the “General Safety” section of this manual first and then the entire manual carefully. If you don’t follow the safety rules, the water heater will not operate properly. It could cause DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY DAMAGE.
This manual contains instructions for the installation, operation, and maintenance of the electric water heater. It also contains warnings throughout the manual that you must read and be aware of. All warnings and all instructions are essential to the proper operation of the water heater and your safety. Since we cannot put everything on the first few pages, READ THE ENTIRE MANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER

2. The installation must conform with these instructions and the local code authority having jurisdiction and the requirements of the power company. In the absence of code requirements follow NFPA-70
(latest edition). The National Electric Code which may be ordered from: National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.

3. If after reading this manual you have any questions or do not understand any portion of the instructions, call the local utility or the manufacturer whose name appears on the rating plate.

4. Carefully plan the place where you are going to put the water heater. INSTALLATION OR SERVICE OF THIS WATER HEATER REQUIRES ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN IN THE FIELD INVOLVED. PLUMBING AND ELECTRICAL WORK ARE REQUIRED.
Examine the location to ensure the water heater complies with the “Facts to Consider About the Location” section in this manual.

5. For California installation this water heater must be braced, anchored, or strapped to avoid falling or moving during an earthquake. See instructions for correct installation procedures. Instructions may be obtained from California Office of the State Architect, 400 P Street, Sacramento, CA 95814.

6. Massachusetts Code requires this water heater to be installed in accordance with Massachusetts 248-CMR 2.00: State Plumbing Code and 248-CMR 5.00.

TABLE OF CONTENTS

SAFE INSTALLATION, USE AND SERVICE
GENERAL SAFETY
INTRODUCTION
Preparing for the New Installation
TABLE OF CONTENTS
TYPICAL INSTALLATION
MIXING VALVE USAGE
LOCATING THE NEW WATER HEATER
Facts to Consider About Location
Insulation Blankets
INSTALLING THE NEW WATER HEATER
Water Piping
Temperature-Pressure Relief Valve
Filling the Water Heater
T & P Valve and Pipe Insulation (Selected Models)
WIRING DIAGRAMS
WIRING
TEMPERATURE REGULATION
Temperature Adjustment
FOR YOUR INFORMATION
Thermal Expansion
Strange Sounds
Operational Conditions
Smelly Water
“Air” in Hot Water Faucets
High Water Temperature Shut Off System
PERIODIC MAINTENANCE
Anode Rod Inspection
Temperature-Pressure Relief Valve Operation
Draining
Thermostat Removal/Replacement
Element Cleaning/Replacement
Drain Valve Washer Replacement
Service
LEAKAGE CHECKPOINTS
TROUBLESHOOTING GUIDELINES
REPAIR PARTS LIST
WARRANTY
NOTES
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RESIDENTIAL ELECTRIC WATER HEATER SERVICE HANDBOOK

RESIDENTIAL ELECTRIC HANDBOOK INTRODUCTION
This service handbook is designed to aid in servicing and troubleshooting Residential
Electric water heaters in the field. No duplication or reproduction of this book may be made without the express written authorization of the manufacturer.
The following text and illustrations will provide you with a step-by-step procedure to
verify proper installation, operation, and troubleshooting procedures. Additional quick reference data is included to assist you in servicing this product.

RESIDENTIAL ELECTRIC WATER HEATER SERVICE HANDBOOK

Introduction
Certification and Approval
Tools
Terms, Definitions, Formulas
Residential Electric Water Heaters
Installation
Construction
Element Test - continuity
Element Test - grounded
Element Test - amperage
Field Wiring
Thermostats
C-2 Circuit & Sequence of Operation
C-2 Circuit Testing
A-6 Circuit and Wiring
A-6 Sequence of Operation
A-9 Off Peak Circuit
A-9 Circuit Sequence of Oper
Three phase unbalanced circuit
A-9 Circuit Testing
Miscellaneous Information
Service Bulletins
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Defender Water Heater Service Manual

The Bradford White DEFENDER Safety System™
The Bradford White DEFENDER Safety SystemTM was designed to resist the ignition of flammable vapors that can occur outside of the water heater.
Use and installation are nearly identical to previous versions of atmospherically fired and vented water heaters. A number of exclusive design features are incorporated in the system that will require additional knowledge on the part of the qualified service provider.
The following information will instruct service professionals on the function, proper diagnosis and repair of water heaters employing the Bradford White DEFENDER Safety System .

For the Bradford White Defender Safety System™
Models:
MI30T*F(BN,CX)2
MI30S*F(BN,CX)2
MI303T*F(BN,CX)2
MI40T*F(BN,CX)2
MI403S*F(BN,CX)2
MI404T*F(BN,CX)2
MI503*F(BN,CX)2
MI50L*F(BN,CX)2
MI504S*F(BN,CX)2
M430T*F(BN,CX)2
M4403S*F(BN,CX)2
M4403T*F(BN,CX)2
M450S*F(BN,CX)
M1XR403S*F(BN,CX)2
M1XR504T*F(BN,CX)2
M2XR504T*F(BN,CX)2
M2C504T*F(BN,CX)
50T65F(BN,CX)
(*) Denotes Warranty Years.

Table of contents

Introduction
Trouble shooting Chart
Inner Door Gasket Removal, Inspection, Replacement and Installation
Thermocouple Testing and Replacement
Pilot Assembly Inspection Cleaning and Replacement
Piezo Igniter and Electrode Testing
Combination Thermostat/Gas Valve Testing and Replacement
Burner Operation Inspection, Adjustment, Cleaning and Replacement
Resettable Thermal Switch Testing and Replacement
ScreenLok Flame Arrestor Cleaning
Dip Tube and Anode Inspection and Replacement
Generic Parts List
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