NOTE: WHEN A HOLBY MIXING VALVE IS USED THERE MUST BE A 27" DROP BELOW THE COIL COLD WATER TERMINAL IN THE COLD WATER
LINE BEFORE ENTERING THE COIL
*
SHUT-OFF VALVE
City
Water
Supply
Service Hot
Water Supply
Service
Recirculating
Hot Water
BRONZE CIRCULATOR
FLOW CHECK VALVE
EXPANSION
TANK
AIR ELIMINATOR (AIR VENT)
BACKFLOW PREVENTER
MAKE-UP
WATER METER
MIXING VALVE
*
PRESSURE
REDUCING
(FILL) VALVE
LOW WATER
CUTOFF
MANUAL RESET
HI-LIMIT
THERMOMETER
City
Water
Supply
Service
Recirculating
Hot Water
Service
Hot Water
Supply
PRESSURE
REDUCING
(FILL) VALVE
BACKFLOW PREVENTER
MAKE-UP
WATER METER
BRONZE CIRCULATOR
FLOW CHECK VALVE
SHUT-OFF VALVE
PRESS RELIEF VALVE
STORAGE TANK
AIR ELIMINATOR (AIR VENT)
LOW WATER
CUTOFF
MANUAL RESET HI-LIMIT
EXPANSION
TANK
NOTE: VALVES "H" OPENED ON HEATING WITH "C" VALVES
CLOSED REVERSE PROCEDURE ON COOLING.
EXP. TANK
VENT
ROOM
UNIT
DRAIN
CHILLER
BOILER
H
C
PUMP
RELIEF
VALVE
FILL
VALVE
DRAIN
C
H
BOILER
TYPICAL PIPING FOR VOLUME WATER HEATING ONLY
(INSTANTANEOUS RECOVERY)
10
TYPICAL PIPING FOR VOLUME WATER HEATING ONLY
(WITH STORAGE TANK)
FIG. 3.6
FIG. 3.7
FIG. 3.8
COMBINATION HEATING
& COOLING INSTALLATIONS
If hot water module is installed in connection with water
chiller, chilled water must be piped in parallel with module
using appropriate valves to prevent chilled medium from
entering module. When modules are connected to heating
coils in air handling units, where they may be exposed to
refrigerated air circulation, module piping system shall be
equipped with flow-control valves or other automatic
means to prevent gravity circulation of module water dur-
ing cooling cycle.
Summary of Contents for MultiTemp MR Series
Page 34: ......
