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23 24 25 26 27 28
23 24 25 26 27 28
M1D3
23 24 25 26 27 28
b
h
b
h
b
h
J6-3
b
SR
J6-10
h
J6-12
h
SF
J6-5
b
J7-6
b
J7-7
bl
FL
J7-8
h
J12-1
r
TS
J12-4 w
J12-5
h
SM
J12-2
b
J8 J11 J12
J5
VG1
EA
PC
AE
IG
g
113 114 115 116 117 118
b
h
113 114 115 116 117 118
113 114 115 116 117 118
Key
Low-voltage terminal board Dep3
M1D3
High-voltage terminal board Dep3
M2D3
Low-voltage terminal board Dep4
M1D4
High-voltage terminal board Dep4
M2D4
Return probe
SR
Exhaust flue probe
SF
Minimum pressure switch
Pm
Flow-meter
FL
Safety thermostat
TS
Flow probe
SM
Ignition/detection electrode
EA
J7
J15
J6
J9
J4
J3
J1
J2
F1
VE1
M2D3
IM3
CLOSE
OPEN
L
N
L
N
L
AE
TB
TSC
VG1
PC
IG
IM3
IM4
VE1
23 24 25 26 27 28
23 24 25 26 27 28
M1D4
23 24 25 26 27 28
b
h
b
h
J6-3
b
SR
J6-10
h
J6-12
h
SF
b
J6-5
J7-6
b
h
TSC
J7-7
bl
b
FL
bl
J7-8
h
J12-1
r
TS
J12-4 w
J12-5
h
SM
J12-2
b
VG1
EA
AE
g
Power supply
Bus connection
Auxiliary display connection
Gas valve 1
Pump
Main switch
Module switch 3
Module switch 4
Fan
b
h
J8 J11 J12
J7
J15
J6
J5
J4
J3
J1
F1
VE1
PC
M2D4
113 114 115 116 117 118
113 114 115 116 117 118
CLOSE
OPEN
L
N
L
N
L
113 114 115 116 117 118
Cable colour
brown
b
blue
h
red
r
white
w
black
bl
yellow/green
g
yellow
y
green
gr
h
TB
b
h
TSC
b
bl
J9
J2
37
g
IM4
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