Install Instructions
18
AR861-2II & AR861-3II EXPANSION TECHNIQUE
THERMOSTATS
GZ2
120 V CIRCULATOR
15VA
120VAC
G W L RA
PRIORITY
GZ1 HZ1
PRIORITY OFF
PRIORITY ON
PRIORITY
T1 T1 T2
GZ3HZ2 HZ3
T3T3T2
S TATS TAT
CIRC CIRC
DO NOT
USE
N
L
120
VAC
CIRC
S TAT
T2
120 V CIRCULATOR
GZ2
THERMOSTATS
15VA
L
120
VAC
N
W
120VAC
G L A GZ1
PRIORITY
R HZ1
PRIORITY OFF
PRIORITY ON
2.7 K
1.0 K
2.7 K
1.0 K
PRIORITY
T1 T2T1
CIRC
HZ2 GZ3 HZ3
1.0 K
2.7 K
T3 T3
S TAT
CIRC
TO BOILER
T-T
TO BOILER
T-T
DOMESTIC
WATER
HOT
JUMPER
JUMPER
TRIPLE RELAY AR861-3 II
ARGO
TRIPLE RELAY AR861-3 II
ARGO
The two controls on this page are capable of running six zones.
When they are installed as shown below, only one priority and four
Important:
Both left-hand T1 ter-
minals must be connected
together and both right-
hand T1 terminals must
be connected together.
Reversing the wiring will
result in the transformers
being out of phase.