Manual

2
3
DO NOT USE
1
RED BLACK BLACK RED
and 4 when
valves
using zone
without an
end switch.
Note: Install
wire jumper
between
terminals 3
120 VAC
T-STAT
T-STAT
END
SWITCH
MOTOR
B&G COMFORTROL,
SPARCO TACO TYPE
ZONE VALVE
HONEYWELL, ERIE
SUPERIOR TYPE
ZONE VALVE
OR THERMOSTAT
HEATER AQUASTAT
ARGO AZ-4CP
CONTROL
INDIRECT WATER
TANK
CONTROL
MOTOR
BLACK BLACK
SWITCH
END
4 WIRE ZONE
VALVE ONLY
21 3 4
JUMPER
ZONE VALVE/PUMP
PRIORITY
ON
ZR-ZC
DPM-2
OPTION SWITCH
ZC ON
STATUS
PRIORITY ON
PRIMARY PUMP
PRIORITY PUMP
X-X CONTACT
ZR ON
T T T T T T T T
1 2 3 4
PRI ZONE
1 2 3 4
ZONE 2
1 2 3 4
ZONE 3
1 2 3 4
ZONE 4
SWITCH LEGEND
OFF
ON
N L N L N L ZR ZC
120 VAC
PRIORITY
PUMP
PRIMARY
PUMP
FROM BOILER
X X
TRANSFORMER
24VAC 40 VA
L
LINE
IN
N
Black
White
24VAC
N
L
Yellow
Yellow
AZ-4CP
Boiler Control Panel
DHW C1
DHW C2
CH C2
L2
L1
CH C1
CIRCULATOR
CH
DWH
CIRCULATOR
A2
DHW T1
DHW T2
A1
CH T2
CH T1
L
N
Wiring Diagram 3: Multizone System With Zone Valves And Domestic Hot Water Priority (With Circulator)
APPENDIX A - BOILER PIPING AND WIRING
33