Installation & Operating Manual

Bobcat Models B-120A and B-200A
27
FROM REST
OF SYSTEM
TO REST
OF SYSTEM
BOBCAT BOILER
ADDITIONAL
ZONES
SPAC E HEAT
ZONE #1
ISOLATION
VALVE
ISOLATION
VALVE
FLOW CHECK
VALVE
ZONE
CIRCULATOR
DO NOT EXCEED
12" APART
AIR VENT
AIR SEPARATOR
ISOLATION
VALVE
MAKE UP
WATE R
SUPPLY
SHUTOFF
VALVE
PRESSURE
REDUCING
VALVE
BACK FLOW
PREVENTOR
(IF REQUIRED)
PURGE/
DRAIN
VALVE
ISOLATION
VALVE
BOILER LOOP
CIRCULATOR
(SUPPLIED WITH
THE BOILER)
FLOW CHECK
VALVE
HOT WATER
OUTLET
COLD
INLET
WATE R
SHUTOFF
VALVE
DRAIN VALVEDRAIN VALVE
DOMESTIC
HOT WATER
TANK
T + P
RELIEF
VALVE
BOILER WATER
OUTLET (SUPPLY)
RELIEF
VALVE
FLOW CHECK
VALVE
DHW
CIRCULATOR
ISOLATION
VALVE
EXPANSION TANK
(DIAPHRAM TYPE)
BOILER WATER
INLET (RETURN)
Figure 20. Zoning with circulators.