UTICA BOILERS UB95M-200 Installation, Operation & Maintenance Manual page 31

Wiring Diagram 2: Multizone Wiring With Zone Valves And Domestic Hot Water Priority (With Zone Valve)
Boiler Control Panel
CH T1
CH T2
DHW T1
DHW T2
A1
A2
APPENDIX A - BOILER PIPING AND WIRING
SWITCH LEGEND
ON
OFF
L
Yellow
24VAC
Yellow
X
N
L
Black
LINE
IN
White
N
PRIMARY
120 VAC
PUMP
N L N
AZ-4CP
L1
L2
CH C1
CH C2
DHW C1
DHW C2
N
120 VAC
L
CONTROL
ARGO AZ-4CUP
CONTROL
T
X
STATUS
PRIORITY ON
PRIMARY PUMP
PRIORITY PUMP
X-X CONTACT
ZR ON
ZC ON
PRIORITY
FROM BOILER
PUMP
L N L ZR ZC
PRI ZONE
1 2 3
JUMPER
CH & DHW
SYSTEM
CIRCULATOR
SWITCH
MOTOR
1 2 3 4
31
INDIRECT WATER
TANK
HEATER AQUASTAT
OR THERMOSTAT
T-STAT
T T T T T
OPTION SWITCH
ZONE 2
ZONE 3
4 1 2 3 4 1 2 3 4
1
2
END
3
DO NOT USE
4 WIRE ZONE
VALVE ONLY
T-STAT
T T
ZONE VALVE/PUMP
PRIORITY
ZR-ZC
DPM-2
ZONE 4
1 2 3 4
Note: Install
wire jumper
between
terminals 3
and 4 when
using zone
valves
END
without an
MOTOR
SWITCH
end switch.