14
MULTIPLE ZONES WITH CIRCULATORS
MULTIPLE ZONES WITH ZONE VALVES
AIR
SCOOP
AIR
VENT
12" MAX.
AIR
VENT
AIR
SCOOP
COLD
WATER
INLET
FEED
VALVE
PIPE PRESSURE
RELIEF VALVE
TO DRAIN
DIAPHRAGM
EXPANSION
TANK
HEATING UNITS
ZONE
VALVES
DIAPHRAGM
EXPANSION
TANK
PIPE PRESSURE
RELIEF VALVE
TO DRAIN
FEED
VALVE
COLD
WATER
INLET
CIRCULATORS
HEATING UNITS
Fig. #8999.1
Fig. #9000.1