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PIPING - MULTIPLE UNIT INSTALLATIONS
MIXING VALVE
BUILDING
HOT WATER SUPPLY
RELIEF VALVE
TO DRAIN
LOCK-TEMP
STORAGE TANK
DRAIN
BUILDING RETURN
COLD WATER SUPPL
Y
FIG. 84 Single Water Heater Piping with Two Storage Tanks
MIXING VALVE
BUILDING
HOT WATER SUPPLY
RELIEF VALVE
TO DRAIN
DRAIN
BUILDING RETURN
MIN. 3” (75mm) COMMON
MANIFOLD SIZE
LOCK-TEMP
STORAGE TANK
COLD WATER SUPPLY
FIG. 85 Multiple Water Heater Piping with Single Storage Tank
FIG. 86 Multiple Water Heater Piping with Multiple Storage Tanks
COLD WATER SUPPLY
MIN. 3” (75MM) COMMON
MANIFOLD SIZE
BUILDING RETURN
DRAIN
LOCK-TEMP
STORAGE TANK
RELIEF VALVE
TO DRAIN
BUILDING HOT
WATER SUPPLY
MIXING VALVE