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CIRCULATOR RELAY BOX
1
2
3
4
C1
C2
Indirect
Aquastat
LIVE NEUT
PR
OUT
PR
IN
L1
L2
L1
L2
T
T
HEATING
CIRCULATOR
REMOVE JUMPER
BETWEEN 1 & 3
3
HONEYWELL L8148A OR SIMILAR W/PRIORITY
CIRCULATOR RELAY BOX
LIVE NEUT
PR
OUT
PR
IN
1
2
3
4
L1
L2
Indirect
Aquastat
L1 L2
B2
B
HONEYWELL L8148J W/MILLIVOLT GAS VALVE
WHITE RODGERS 8J48A W/24V GAS VALVE
CIRCULATOR RELAY BOX
Indirect
Aquastat
L2
LIVE NEUT
PR
OUT
PR
IN
3
4
2
1
L1
L2
L1
B
W
CIRCULATOR RELAY BOX
Indirect
Aquastat
L2
LIVE NEUT
PR
OUT
PR
IN
3
4
2
1
L1
MULTI-ZONE
CONTROL
PRIORITY
ZONE
THERMOSTATS
ZONE OUTPUTS
T T
T T
T T
TYPICAL MULTI-ZONE CONTROL