Supplied By www.heating spares.co Tel. 0161 620 6677
6.0 Installation
30
NOTE:
The method of connection to the
electricity supply must facilitate complete
electrical isolation of the appliance.
Connection may be made via a fused double
pole isolator with a contact separation of at
least 3mm (
1
/
8
in) in all poles and serving the
appliance and system controls only. All cables
should be routed to avoid hot surfaces.
WARNING
-
T
HIS APPLIANCE MUST BE EARTHED
.
4 core input cable for connection to the appliance
must be not less than 0.75mm
2
(24 x 0.2mm)
PVC grade to IEC 227 code 53 (heat resisting).
External controls and the appliance MUST be
supplied via the same isolator.
NOTE:
Polarity of the appliance MUST be
correct otherwise the appliance will not
operate correctly.
or
b
r
g/y
w
br
g
w
bk
gy
br
b
Pump
N
Main Gas Valve
Pilot Gas Valve
Fan
Pressure Switch
Thermostat Sensor
Overheat
Thermostat
Control
Potentiometer
& Switch
Spark Electrode
N
N
N
External
Controls
S/L
L
230V
L
b
r
b
or
b
br
br
gy
w
y
bk
y
or
or
or/bk
or/bk
r/b
y/bk
y/r
w
PCB
Schematic
Wiring
Diagram
Pressure
Switch
Control Potentiometer
& Switch
Thermostat
Sensor
Spark Electrode
Fan
Gas Valve
Key
br - brown
b - blue
r - red
w - white
bk - black
or - orange
gy - grey
y - yellow
g - green
g/y - green & yellow
or/bk - orange & black
r/b - red & blue
y/bk - yellow & black
y/r - yellow & red
6.17
Electrical Connections
r/b
y/r
y/bk
or/bk
or/bk
y
or
or
y
Overheat
Thermostat
b
gy
bk
w
Pump
br
g/y
b