Installation Guide

Aquastat Wiring
TV T
Z
L1
(HOT)
CIRCULATOR
ON BOILER
(
IF ATTACHED)
B
2
C2
B1
C
1
TACO
ZONE
CONTROL
HONEYWELL L8124G & L OR EQUAL
120 VAC
INPUT
Z
R
END SWITCH
L
1
L2
(NEUTRAL)
L
2
Z
C
L
INE
V
OLTAGE
O
IL BURNER
RELAY OR
G
AS VALVE
L1 L2
T T
L
1
(
HOT)
L
2
(
NEUTRAL)
LINE VOLTAGE
OIL BURNER RELAY
OR GAS VALVE
CIRCULATOR
ON BOILER
(IF ATTACHED)
B2
C1
B1ZR
TACO
ZONE
CONTROL
HONEYWELL L8124M OR EQUAL
1
20 VAC
INPUT
C2
ZC
END SWITCH
L1 L2
T T
L1
(HOT)
L2
(NEUTRAL)
LINE VOLTAGE
OIL BURNER RELAY
OR GAS VALVE
CIRCULATOR
ON BOILER
(IF ATTACHED)
C1 B2B1
TACO
ZONE
CONTROL
HONEYWELL L8148A OR EQUAL
120 VAC
INPUT
C2
END SWITCH
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