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RESIDENTIAL GAS AND ELECTRIC WATER HEATER
SERVICE HANDBOOK
STANDARD RESIDENTIAL ELECTRIC WATER HEATERS
INSTALLATION
SOME MODELS MAY HAVE SIDE OR REAR CONNECTIONS
INSTALL DRAIN PAN TO PREVENT
FUTURE WATER DAMAGE
DRAIN VALVE
UNION
FLOOR
DRAIN
6” AIR GAP
†FUSE SHOULD BE RATED
AT AMPERAGE INDICATED
ON RATING PLATE TIMES
125%
SEE MANUAL
AND LABELS
FOR
INSTALLATION
CLEARANCES
ACCESS PANELS – WATER
TEMPERATURE ADJUSTMENT
IS BEHIND THESE PANELS.
RECOMMENDED SETTING IS
125
ELECTRICAL
JUNCTION BOX
ADJACENT
CONDUIT
ENTRANCE
RATING PLATE
WITH MODEL
AND SERIAL
NUMBER
HOT WATER
TO FIXTURES
DRAIN LINE
INSTALL THERMAL
EXPANSION TANK AFTER
SHUT OFF VALVE. PRE-
PRESSURIZED TO EQUAL
SUPPLY WATER
PRESSURE
SHUTOFF
VALVE
TO †FUSED
ELECTRICAL
SUPPLY
(BREAKER BOX)
TEMPERATURE AND
PRESSURE RELIEF VALVE
OPENING MAY BE ON SIDE
OR TOP OF HEATER. DO
NOT REUSE OLD VALVE
UNION
COLD WATER
INLET LINE
INSTALLATION MUST FOLLOW LOCAL CODES AND INSTRUCTION MANUAL GUIDELINES.
A.O. Smith Water Products Company Technical Training Department
©2005 Ashland City, TN
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