Figure 59 4HERMOSTATORSENSORWIRINGENTRANCES
Part number 550-142-850/0716
50
FreeStyle
®
WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
FreeStyle
®
Central Heating and
Combi boiler wiring
The boiler is pre-wired and is ready to be plugged into
your electrical supply. Receptacle must be a grounded and
polarized circuit.
7IREENTRANCES
21 Field wiring
%,%#42)#!, 3(/#+
(!:!2$&ORYOURSAFETY
TURNOFFELECTRICAL POWERSUP-
ply at service entrance panel
BEFOREMAKING ANYELECTRICAL
connections to avoid possible
electric shock hazard. Failure to
do so can cause severe personal
injury or death.
The installation must comply
with: National Electrical Code
and any other national, state,
provincial or local codes or
regulations.
Wiring must be N.E.C.
#LASS)FORIGINALWIRINGAS
supplied with boiler must be
replaced, use only type 105 °C
wire or equivalent. Boiler must
be electrically grounded as
required by National Electrical
#ODE!.3).&0! n LATEST
edition.
!LLlELDWIRINGISMADETHROUGHTHEBOTTOMOFTHEBOILER
thr
ough two (2) black grommets shown in Figure 59.
#ONNECTINGTERMINALS
The electrical connections terminal block can be accessed
AFTERREMOVING THE FRONTJACKET PANEL 4HE LAYOUTOFTHE
TERMINALSFORTHEVARIOUSCONNECTIONSISSHOWNINFigure 60
or given in the wiring diagram in Figure 66, page 52 or
Figure 68, page 54.
2OOMTHERMOSTAT
When connecting a room thermostat, connect the thermo-
stat across terminals R and WFORATWOWIRETHERMOSTAT
or optional R,W and CFORATHREEWIRETHERMOSTATSEE
Figure 60, Item 72. The thermostat connector is located on
THERIGHTSIDEOFTHEBOILER
%ITHER A VOLTAGE FREE THERMOSTAT OR A 6!#
thermostat can be connected to the boiler.
Figure 60 4HERMOSTATTERMINALS#OMBIAND#ENTRAL(EATING
AND/UTDOORSENSOR(EATING/NLY"OILERS
Figure 61 4HERMOSTAT2ELAYBOXTERMINALS#OMBIAND#ENTRAL
(EATINGBOILERS
Wire grommets
Outside of
4HERMOSTAT2ELAY
"OX
)NSIDEOF
4HERMOSTAT2ELAY
"OX
Transformer
2ELAY
Fuse
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