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Figure
21
BOIL£R
- Piping
and Wiring
Multi-Zone
System
With
Circulators
And Domestic
Hot Water
Priority
ZONE
4
CIRC 4
.............................................
_
ZONE
3
CIRC 3
...................................... ZONE
2
CIRC 2
DHW
CIRCULATOR
ZONE
1 (PRIORY_Y'
ZONE)
EXPANSION
"TANK
INDIRECT WATER
HEATER, AQUASTAT
OR THERMOSTAT
L
120 VAC
N
TO OIL
BURNER
[]
(3,
ARM-4P
CONTROL WITH
PRIORITY
0
TO EXTRA
ZONEMODULE
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