22
3. ELECTRIC DIAGRAMS
Legend:
AT
=
High Voltage P.C.B.
BT
=
Low Voltage P.C.B.
A
=
Remote Connector Kit
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
=
Connector for Time Clock
K
=
Connector for Total Check System
L
=
Selector for Local/Remote Control
M
=
Anti-cycling Device Adjustment for Heating
N
=
Soft-light Adjustment
O
=
Max Heating Temperature Adjustment
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
Y
=
Selector TCS2
Z
=
Link for Continuous Pump Run
A01 =
Air Pressure Switch
A02 =
Fan
A03 =
Gas Valve
A05 =
Motorised Valve
A06 =
Circulation Pump
A07 =
Flame Detector
A08 =
Earth Terminal
B01 =
Over Heat Thermostat
B02 =
External Thermostat
B03 =
Gas Valve Modulator
B04 =
D.H.W. Probe Sensor Cylinder
B05 =
Heating Sensor
B06 =
Pressure Switch for Heating Circuit
B07 =
Pump pressure switch
Colours
Gry
= Grey
Rd
= Red
Bl
= Blue
Grn/Yll =
Yellow/Green
Wh
= White
Brn =
Brown
Blk =
Black
Wh/Rd
= White/Red
T
D.H.W.
Heating
+ D.H.W.
Flue Test
operating
modes
Heating
AT
BT
SE003A
Summary of Contents for Genus 27 Plus
Page 46: ...403 Users Manual...
