User Guide

Part number 550-100-325/0718
51
AquaBalance
®
SERIES 2 WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
22 Wiring diagram — AquaBalance
®
80/120C Combi Schematic
Figure 69 AquaBalance
®
80/120C –– Combi Schematic Wiring Diagram
FRG0
ABM08
X3 - 12 X3 - 10 X3 - 11 X3 - 24 X3 - 22 X3 - 23
X3 - 6
X3 - 2
X3 - 13
X3 - 1
X2 - 5
X2 - 11
X4 - 8
X4 - 17
X4 - 5
X4 - 13
X4 - 12
X4 - 4
X2 - 7
X3 - 12
X3 - 24
X3 - 11
X3 - 23
X3 - 10
X3 - 6 X3 - 13 X3 - 2 X3 - 1 X4 - 8 X4 - 17 X2 - 11 X2 - 5 X4 - 13 X4 - 5 X4 - 4 X4 - 12
X2
112
1324
X3
19 1018
X4
61
12 7
191
136
44
32
114
X3 - 18
X3 - 18
95
X3 - 5
X3 - 17
X3 - 4
X3 - 16 X3 - 4 X3 - 17 X3 - 5
X3 - 22
X3 - 8
X3 - 20
X3 - 7
X3 - 19
X3 - 8 X3 - 20 X3 - 7 X3 - 19
X2 - 4
X2 - 10
X2 - 10 X2 - 4
GROUND
X3 - 9
X3 - 21
186
X3 - 9 X3 - 21
42
278
16
GROUND
X4 - 6
X4 - 15
X4 - 6 X4 - 15
GROUND
X2 - 12 X2 - 6
X1 - 1
X1 - 2
X4 - 3
X4 - 11
X4 - 2
X4 - 10
X1
81
373
1
2
GROUND
GROUND
GROUND
X2 - 1
GROUND
120Vac
60Hz
GROUND
370
138
(see note 3)
M
1 610
5
279
284
104 (2)
X4 - 7
X4 - 1
72
(see note 2)
X0
RWC
TT
X0 - 10
X0 - 9
X0 - 8
X0 - 1
X0 - 6
X0 - 5
X0 - 4
104 (1)
123 456
.(<
 Fan  Central heating pump  D.H.W. temperature sensor  Combination gas valve  Room thermostat (not included)  Spark Electrode  Diverting valve
 Fuse 3.15A  Fuse 630 mA
 Water pressure switch
 Flowmeter  Outdoor sensor  Return temperature sensor  Exhaust temperature sensor  Double sensor (safety + heating)  Transformer 115-24 Vac  Relay SPST-Coil 24 Vac  Low Water Cutoff (not included)  “OPENTHERM” communication