Freestyle 80 - Wiring Diagram - FS- 155 Heating Only Schematic

Part number 550-142-850/0716
59
FreeStyle
®
WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
23 Wiring diagram — FS- 155 Heating Only Schematic
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Legend
16 Fan
32 Central heating pump (not included)
44 Gas valve
72 Room thermostat (optional)
81 Ignition electrode
104(1) Fuse 3.15A
104(1) Fuse 630mA
114 Water pressure switch
130 DHW Pump (not included)
138 Outdoor sensor 143 DHW tank thermostat (optional) 186 Return temperature sensor 191 Exhaust temperature sensor 278 Double sensor (heating + safety) 279 Transformer 115-24 Vac 284 Relay SPST-Coil 24 Vac 370 LWCO (optional) 373 “OPENTHERM” communication
(Not used)
Pump Wiring Connections
Terminal #9 : Line Terminal #10 : Neutral Terminal #12 : Line Terminal #13 : Neutral
Only one circulator may be
wired to each connection point.