ZONE
VALVES
HEATING UNITS
AIR
SCOOP
DIAPHRAGM
EXPANSION
FEED TANK
VALVE
PIPE PRESSURE
RELIEF VALVE
TO DRAIN
COLD
WATER
INLET
CIRCULATOR
COLD
WATER
SUPPLY
AIR
VENT
HOT WATER
SUPPLY
Fig.# 8998.1
ZONE HEATING WITH INDIRECT DOMESTIC HOT WATER SUPPLY
12
ZONE
VALVES
HEATING UNITS
AIR
SCOOP
DIAPHRAGM
EXPANSION
FEED TANK
VALVE
PIPE PRESSURE
RELIEF VALVE
TO DRAIN
COLD
WATER
INLET
CIRCULATOR
COLD
WATER
SUPPLY
AIR
VENT
HOT WATER
SUPPLY
12