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Bobcat Models B-120A and B-200A
28
P
SYSTEM
CIRCULATOR
D
IFFERENTIAL
P
RESSURE BYPASS
VALVE (IF USED)
BOBCAT BOILER
ADDITIONAL
ZONES
SPACE HEAT
ZONE #1
I
SOLATION
V
ALVE
ZONE
VALVE
DO NOT EXCEED
12" APART
A
IR VENT
A
IR
S
EPARATOR
I
SOLATI ON
VALVE
MAKE UP
WATER
SUPPLY
SHUTOFF
VALVE
P
RESSURE
R
EDUCING
VALVE
BACK FLOW
PREVENTOR
(IF REQUIRED)
PURGE/
D
RAIN
VALVE
ISOLATION
V
ALVE
BOILER LOOP
CIRCULATOR
(SUPPLIED WITH
THE BOILER)
FLOW CHECK
VALVE
HOT WATER
OUTLET
COLD
INLET
WATER
SHUTOFF
VALVE
DRAIN VALVEDRAIN VALVE
DOMESTIC
HOT WATER
TANK
T + P
RELIEF
VALVE
BOILER WATER
OUTLET (SUPPLY )
RELIEF
VALVE
FLOW CHECK
VALVE
DHW
CIRCULATOR
ISOLATI ON
VALVE
EXPANSION TANK
(DIAPHRAM TYPE)
BOILER WATER
INLET (RETURN)
Figure 21. Zoning with zone v
alves.