Series Twelve
For Your Safety
Model Numbers
POWER VENT GAS WATER HEATER USER’S GUIDE
SAFE INSTALLATION, USE AND SERVICE
DANGER
IMPORTANT DEFINITIONS
SAFETY PRECAUTIONS
TABLE OF CONTENTS
PRODUCT SPECIFICATIONS
CUSTOMER RESPONSIBILITIES
TO INSTALL OR OPERATE THE WATER HEATER
Tin Snips 6’ 1.82 m Tape or Folding Ruler
ACCESSORIES AND TOOLS NEEDED
Wire Brushes
Pipe Wrenches 2 14” 356 mm Screwdriver
Removing the Old Water Heater
INSTRUCTIONS FOR INSTALLATION
Drip Leg Sediment Trap
TYPICAL INSTALLATION
Temperature-PressureRelief Valve
Vent Pipe
MIXING VALVE USAGE
TYPICAL INSTALLATION
Facts to Consider About the Location
LOCATING THE NEW WATER HEATER
VENTINGCLEARANCES
Combustion Air and Ventilation
FIGURE13
VENTING THROUGH ROOF - CLEARANCES
FIGURE11
FIGURE12
Insulation Blankets
Water Piping
See Figure 21 for mixing valve usage
T & P Valve and Pipe Insulation
Temperature-PressureRelief Valve
Filling the Water Heater
Wiring
OPERATION. VERIFY PROPER OPERATIONAFTER SERVICING
Wiring Diagram
USE WITHOUT POWER CORD
Electrical Code, ANSI/NFPA
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
Venting
VENTING THROUGHAN OUTSIDE WALL
3” PVC, ABS or CPVC Schedule 40 vent piping
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS ONLY
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
OPTIONAL 4” VENT PIPING
4” PVC, ABS or CPVC Schedule 40 vent piping
75 GALLON 70,000 AND 75,000 BTU/HR MODELS
VENTING SYSTEM EXAMPLE INSTALLATIONS
The vent piping may be installed as follows
FOR ALL MODELS
3” DIA. VENT
See Chart below for maximum length
40 AND 50 GALLON 40,000 BTU/HR MODELS
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
NUMBEROF
APPROXIMATE SETTING TIME FOR
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
3” DIA. VENT
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
CONNECTING PVC, ABS OR CPVC PIPE VENT TO BLOWER
VENTING THROUGH A ROOF - ALL MODELS
3” PVC, ABS or CPVC Schedule 40 vent piping
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS
OPTIONAL 2” VENT PIPING
2” PVC, ABS or CPVC Schedule 40 vent piping
NUMBEROF
ALL 40 AND 50 GALLON 40,000 BTH/HR MODELS ONLY
OPTIONAL 2” VENT PIPING
2” DIA. VENT
Sediment Traps
OPERATING INSTRUCTIONS
BEFORE THE WATER HEATER WILL OPERATE
OPERATION
WATER HEATING IGNITION SEQUENCE
Temperature Regulation
Operating
CHECK FOR LEAKS
2.Release both temperature adjustment buttons
TO TURN OFF GAS TO APPLIANCE
FOR YOUR SAFETY READ BEFORE LIGHTING
OPERATING INSTRUCTIONS
LIGHTING INSTRUCTIONS
Vent System Inspection
SERVICE AND MAINTENANCE
Tank Sediment Cleaning
Burner Cleaning
For Propane L.P. Models Only
Anode Rod Inspection
Draining
Housekeeping
Temperature-PressureRelief Valve Operation
Drain Valve Washer Replacement
Service
Thermal Expansion
TROUBLESHOOTING
Condensation
Smoke / Odor
Water is Too Hot
Venting Manual Reset Switch
“AIR” In Hot Water Faucets
Not Enough or No Hot Water
Leakage Checkpoints
TROUBLESHOOTING Continued
THERMOSTAT AND GAS SUPPLY CHECK
NO YES
SYSTEM CHECK
WATER HEATER CONTROL
LED STATUS
Thermostat problems
TROUBLESHOOTING Continued
Problem
Solution
PCV, ABS OR CPVC ITEMS FOR ALL MODELS SUPPLIED
REPAIR PARTS LIST
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST
MODEL NO’S
PCV, ABS OR CPVC ITEMS FOR ALL MODELS SUPPLIED
REPAIR PARTS LIST
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST
MODEL NO’S
PCV, ABS OR CPVC ITEMS FOR ALL MODELS SUPPLIED
REPAIR PARTS LIST
THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST
MODEL NO’S
MAYTAG
REPAIR PARTS LIST
MAYTAG
STATE
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LIMITED TANK WARRANTY AGAINST LEAKS
WARRANTY
FULL ONE YEAR WARRANTY
LIMITED PARTS WARRANTY