Supplied By www.heating spares.co Tel. 0161 620 6677
23
3.
ELECTRICAL
DIAGRAMS
L
EGEND
:
A
=
Central Heating Temperature Adjustment
B
=
Domestic Hot Water Temperature Adjustment
C
=
Soft-light Adjustment
D
=
Maximum Heating Adjustment
E
=
Time Clock Connector
F
=
On/Off Switch
G
=
Fume Sensor L.E.D.
H
=
Central Heating Selector
I
=
Ignition Failure (Lockout) L.E.D.
J
=
On/Off L.E.D.
K
=
Reset Button
L
=
Central Heating L.E.D.
M =
Transformer
N
=
Circulation Pump Relay
O
=
Fan Relay
P
=
Gas Valve Relay
Q
=
Spark Generator I.C.
A01
=
Circulation Pump
A02
=
Fan
A03
=
Spark Generator/Gas Valve Supply
A04
=
Flame Detection Circuit
A05
=
Detection Electrode
A06
=
Main Circuit Temperature Probe
A07
=
Domestic Hot Water Temperature Probe
A08
=
D.H.W. Flow Switch
A09
=
Pump Pressure Switch
A10
= Modulator
A11
=
Air Pressure Switch
A12
=
Safety Thermostat
A13
=
External (Room) Thermostats
Colours:
Gry
=
Grey
Wh
=
White
Pnk
=
Pink
Brn
=
Brown
Bl
=
Blue
Blk
=
Black
Rd/Blk
=
Red/Black
Summary of Contents for microCombi
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Page 27: ...Supplied By www heating spares co Tel 0161 620 6677 27 NOTES...
