Dunkirk DCBF-100 - 125 F W;Indirect Zone Circulators, DHW Tank W;Sensor - Wiring Diagram

11
ZONE 1
LINE
24V
Vac
L
C
R
115 Vac
NL
1
N
115
COM
Vac
ZRZC
NL
3
NL
2
115 Vac
N
L
1
L
N
ZONE PUMPS
XXXXX
32
1
X
NEC Class 2 Low Voltage
ZONE 3ZONE 2
ZONE 1
W
R
NEC Class 2 Low Voltage
T
T
C
THERMOSTATS
ZONE VALVES
ZONE 3ZONE 2
43214321432
1
NEC Class 2 Low Voltage (24Vac)
W
R
T
T
C
W
R
T
T
C
PRI PUMP ZC/ZR
DIGITAL LCD USER DISPLAY
Fuse
ZONE MODULE
TO EXPANSION
Transformer
PTC
12A 250V
115 Vac FIELD SUPPLIED
POWER PER NEC
AND LOCAL CODES
Z2 Z3
ZONE
THERMOSTATS
Domestic Hot
Water Tank
w/Sensor
12345678910
VAC
24
G
M2
M2 terminal strip on boiler
*
100F, 125F W/INDIRECT ZONE CIRCULATORS, DHW TANK W/SENSOR - WIRING DIAGRAM
If adding an indirect tank with sensor to a Heating Only Boiler, change P03 from 08 to 05. See Section 9, Parameter Settings in Boiler Installation, Operation & Maintenance Manual for details.
Reference zone control manufacturer instructions for details on setting priority if necessary.
100F & 125F WITH INDIRECT ZONE CIRCULATORS & DHW TANK W/SENSOR, ARGO UZ3 ZONE CONTROL
UZ3
PN 240012875 REV. B [07/01/2021]