Dunkirk DWB Series - Manual (Page 38)

GND
OUT
+5V
47
42
72
114
136
297
95
°
T
°
T
278
32
16
44
DBM34
L
120Vac
60Hz
GND
+ 15V
OUT
N
1k
81
5 6 4 1 2
138
1 4
AUX
L N
X2
X7
1
M
370
3
Key
16 Modulating fan
32 Heating circulating pump
42 DHW temperature sensor
44 Gas valve
47 Modulation Regulator
72 Room thermostat (fi eld sourced)
81 Ignition/detection electrode
95 Diverter valve
114 Water pressure switch
136 Flow meter
138 External probe (fi eld sourced)
278 Double sensor (Safety + Heating)
297 Air pressure transducer
370 LWCO - fi eld sourced (fi eld sourced)
370 - Field Source LWCO
138 - Optional Outdoor Sensor
Important: Before connecting the room thermostat, remove the jumper on terminal block.
38
WIRING DIAGRAM