2.11Electrical Diagram
Legend:
AT | = | High Voltage P.C.B. |
BT | = | Low Voltage P.C.B. |
B= Flame Failure L.E.D.
C= Insufficient Water Pressure L.E.D.
D= Water Temperature Indicator L.E.D.s
E= Overheat Thermostat Warning L.E.D.
F= System Reset Button
G= Selector Knob for Operating Mode
H= Domestic Hot Water Temp. Adjustment
I= Central Heating Temp. Adjustment
J= Wire Connector for Room Thermostat
K= Connector for Total Check System
M=
N=
O= Max Heating Temperature Adjustment
P= Time Clock Connection
Q= On/Off L.E.D.
R= On/Off Switch
S= Interface Wire for P.C.B.s
T= Relay Motorised Valve
U= Ignitor Relay
V= Gas Valve Relay
W= Fan Relay
X= Circulation Pump Relay
Aa | = | Adaptor (British Gas use only) |
Y | = | Selector TCS2 |
A01 | = | Air Pressure Switch |
A02 | = | Fan |
A03 | = | Gas Valve |
A04 | = | Ignitor |
A05 | = | Motorised Valve |
A06 | = | Circulation Pump |
A07 | = | Flame Detector |
A08 | = | Earth Terminal |
A09 | = | Flame Detection Circuit |
A10 | = | Flame Indicator L.E.D. |
A11 | = | Transformer |
A12 | = | Filter |
B01 | = | Over Heat Thermostat |
B02 | = | Room Thermostat |
B03 | = | Gas Valve Modulator |
B05 | = | Heating Sensor |
B06 | = | Pressure Switch for Heating Circuit |
B07 | = | Microswitch for Diverter Valve |
Colours
Gry | = Grey |
Rd | = Red |
Bl | = Blue |
Grn/Yll | = Yellow/Green |
Wh | = White |
Brn | = Brown |
Blk | = Black |
Wh/Rd | = White/Red |
B023 | 15 |
