315268-000

315268-000
WIRING DIAGRAMS
MULTIPLE HEATER PIPING
ALL TOP CONNECTING
MODELS
APPLICATION TYPE DIAGRAM
SEE INSTALLATION MANUAL
FOR COMPLETE INSTRUCTIONS
INSTALL DISCHARGE PIPES
RETURN LINE
(IF USED)
GAS HEATERS
CHECK VALVE
WATER HEATER
TEMPERATURE AND
PRESSURE RELIEF
VALVE
INSTALL THERMAL
EXPANSION TANK ON COLD
WATER SUPPLY LINE, IF
CHECK VALVE OR
PRESSURE REDUCING
VALVE IS USED IN SUPPLY.
DISCHARGE PIPE
(DO NOT CAP OR PLUG)
COLD WATER SUPPLY
** BALL VALVE
OUTLET AT
STORED TEMP.
** BALL
VALVE
** BALL VALVE
6 INCH (15 cm)
MAXIMUM
AIR GAP
ELECTRIC HEATERS
COLD WATER SUPPLY
RETURN LINE
(IF USED)
*TEMPERATURE AND
PRESSURE RELIEF
VALVE
METAL
DRAIN
PAN
CHECK VALVE
** BALL VALVE
OUTLET AT
STORED TEMP.
** BALL
VALVE
** BALL VALVE
*TEMPERATURE AND
PRESSURE RELIEF
VALVE
METAL
DRAIN
PAN
•
Installation must conform to applicable code and
all requirements listed in the installation manual.
•
Each temperature and pressure relief valve
(T&P valve) must have a properly-sized
discharge pipe installed. See code/installation
manual. Each discharge pipe must terminate a
maximum of six inches above a floor drain or
external to the building.
•
Do not cap or plug the T&P discharge pipes.
•
Suitable metal drain pans should be installed
under each water heater. The pan must be
piped to an adequate drain and limit the water
level to a maximum depth of 1-3/4” (4.4 cm) and
be two inches (5 cm) wider than the heater.
* PIPE TO ADEQUATE DRAIN
** OPTIONAL FOR HEATER ISOLATION
315268-000
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