Install Instructions

22
ADDITIONAL WIRING DIAGRAMS
"AT" BOILER
C1
C2
CIR.
CIRCULATOR
PUMP 120 VAC
TT
TT
PRIMARY
X X
ZONE 1 ZONE 2
T T
SWITCH
END
ZONE 1
THERMOSTAT
SPST (2 WIRE)
ARGO
AZ-3
ZONE 2
ZONE 1
ZONE 3
T T
ZONE 2
T T
ZONE 3
ZONE 3
ZONE
VALVE
ZONE
VALVE
ZONE
VALVE
THERMOSTATS
THREE ZONES WITH CONTROL VALVES
"AT" BOILER
C1
C2
CIR.
CIRCULATOR
PUMP 120 VAC
TT
TT
PRIMARY
X X
ZONE 1 ZONE 2
TR TW
SWITCH
ISOLATED
THERMOSTAT
SPST (2 WIRE)
ARGO
ARM-3P
ZONE 2
ZONE 1
ZONE 3
ZONE 3
TR TW TR TW
THERMOSTATS
L N L N L N
120 VAC
L N
CIR. CIR. CIR.
CIRCULATOR PUMPS
(120 VAC)
120 VAC
THREE ZONES WITH CIRCULATORS