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PIPING DIAGRAM
BUILDING
HOT WATER
SUPPLY
LOCK-TEMP
STORAGE
TANKS
DRAIN
Gray shaded area represents common manifold piping.
COMMON WATER MANIFOLD SIZE FOR MULTIPLE WATER HEATER INSTALLATION
Pipe sizing chart provides minimum pipe size for common manifold piping to ensure adequate flow.
NUMBER OF
UNITS
CW 495-745
This illustration is for concept only and should not be used for any actual installation without engineering
or technical advice from a licensed engineer. All necessary equipment may not be illustrated.
FULL PORT
SYSTEM
SYSTEM
BALL VALVE
PUMP
RELIEF VALVE
Lochinv ar
D E S I G N E R
RELIEF
VALVE
COMMON MANIFOLD SIZE
(Min.)
1
2"
2
3"
3
3-1/2"
4
4"
5
5"
6
5"
L E G E N D
TEE
ELBOW
'
-
S G U I D E C O P P E R
F I N W A T E R H E A T E R
TWO HEATERS-TWO TANKS
COLD WATER
SUPPLY
LOCHINVAR
WATER HEATERS
OUTLET
INLET
OUTLET
NUMBER OF
COMMON MANIFOLD SIZE
UNITS
(Min.)
CW 986-2066
1
2-1/2"
2
4"
3
4"
4
5"
5
6"
6
6"
UNION
EXPANSION
CHECK
TANK
VALVE
615- 8 89 - 89 00
BUILDING
RETURN
LIT0451
THERMOMETER
REDUCING
REDUCING
TEE
TEE
A5
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