Wiring Diagram - Combi Ladder - Weil-McLain WMB-155C Manual

W
TM
AquaBalance
23 Wiring diagram — Combi Ladder
Figure 62
NOTES:
1. All wiring must be installed
in accordance with N.E.C.
and any other national state
or local requirements.
2. Room thermostat should
be a dry contact type and
should draw power from the
control board: should not be
greater than 24 Vac and 500
mA.
3. Max. voltage and electric
current for the LWCO should
not be greater than 120Vac
and 3 Amp.
4. In case of questions during
installation please contact
your local distributor.
Legend
16 Blower
32 Central heating pump
42 DHW temperature sensor
44 Gas valve
72 Room thermostat (optional)
81 Ignition electrode
95 Mixing (diverting) valve
104(1) Fuse 3.15A
104 (2) Fuse 630mA
48
M -
ALL OUNT GAS FIRED WATER BOILER
— C
OMBI Boiler Manual
114 Water pressure switch
136 Flow meter
138 Outside temperature sensor (optional on Combi)
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)
Part number 550-100-305/1016