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Appendices
92 Instruction Manual BFC
A
is
A.2 Electrical diagram
BFC
TERMINAL STRIP CONNECTIONS:
A Earth
N Neutral
L
1
Phase input of controller
L
2
Phase input of isolating transformer (primary side)
L
3
Phase output of isolating transformer (secondary side)
L
4
Phase input of program-controlled pump
L
5
Phase input of continuous pump
COMPONENTS:
A Controller
B Ionisation rod
C Glow igniter
D Gas control
E Burner earth connection
F Extra ON mode switch
G Continuous pump
H Program-controlled pump
J Extra error signal
K Isolating transformer
L Double-pole mains switch
M ON/OFF switch control
N Display/Flat cable
OFan
P Temperature sensor (T2 - bottom of tank)
Q Dummy
R Temperature sensor (T1 - top of tank)
S Selection resistor
T Pressure switch
CONTROLLER CONNECTIONS:
J1 Connector for display to controller
J2 Connector for power supply to controller
J19 Connector for extra error signal
J20 Connector for gas control
J21 Connector for program-controlled pump
J24 Connector for fan
JP2 Connector for ionisation rod and glow igniter
JP3 Connector for temperature sensor T2
JP4 Connector for dummy
JP5 Connector for temperature sensor T1
JP6 Connector for selection resistor and pressure switch
JP8 Connector for extra ON mode switch
F1 Fuse
F2 Fuse
Figure A.1 Electrical diagram BFC
#
$
%
&
'
(
= white (flat ca-
= grey/beige
= brown
= blue
= yellow/green
= black
%
= brown