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
END
SWITCH
MOTOR
*BOILER
*BOILER CIRCULATOR WILL RUN
WITH ALL CALLS FOR HEAT.
DHW C1
DHW C2
CH C2
CH C1
AIR SENSOR
OUTDOOR
A2
DWH T1
DHW T2
A1
Boiler Control Panel
CH T1
CH T2
L1
L2
Note: a priority loop zone valve is used with this conguration
CH
CIRC
CONTROL
TANK
HEATER AQUASTAT
OR THERMOSTAT
INDIRECT WATER
BLACK BLACK
21 3 4
MOTOR
END
SWITCH
VALVE ONLY
4 WIRE ZONE
JUMPER
VAC
CIRCUIT ON
120
L2
N.O.
4
N.C.
4
AR822-II
TT
R W
24V
C 5 6 6
RELAY
TRANSFORMER
N.O. N.C.
24VAC 15 VA
24VAC
L1/3 FACTORY
INSTALLED
JUMPER
ZONE VALVE/PUMP
PRIORITY
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
ON
N L N L N L ZR ZC
120 VAC
PRIORITY
PUMP
PRIMARY
PUMP
FROM BOILER
X X
TRANSFORMER
24VAC 40 VA
Black
White
Yellow
Yellow
AZ-4CP
T-STAT
B&G COMFORT-TROL,
SPARCO TACO TYPE
ZONE VALVE
ARGO AZ-4CP
CONTROL
HONEYWELL, ERIE
SUPERIOR TYPE
ZONE VALVE
CIRC
N
L
DHW
CIRC
SWITCH LEGEND
OFF
ON
Wiring Diagram 7 : Primary/Secondary Piping With Zone Valves And Domestic Hot Water (With Circulator)
APPENDIX A - BOILER PIPING AND WIRING
41