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
b
J6-3
SR
J6-10
h
J6-12
h
SF
J6-5
b
J7-6
b
FL
J7-7
bl
J7-8
h
J12-1
r
TS
J12-4 w
J12-5
h
SM
J12-2
b
J8 J11 J12
J5
J4
EA
VE1
VG1
AE
IG
113 114 115 116 117 118
g
b
h
113 114 115 116 117 118
L
113 114 115 116 117 118
Key
M1D3
Low-voltage terminal board Dep3
M2D3
High-voltage terminal board Dep3
M1D4
Low-voltage terminal board Dep4
M2D4
High-voltage terminal board Dep4
SR
Return probe
SF
Exhaust flue probe
Pm
Minimum pressure switch
FL
Flow-meter
TS
Safety thermostat
SM
Flow probe
EA
Ignition/detection electrode
AE
Power supply
h
b
bl
J7
J15
J6
J10 J9
J3
J1
J2
F1
M2D3
IM3
CLOSE
OPEN
N
L
N
L
TB
Bus connection
TSC
Auxiliary display connection
VG1
Gas valve 1
PC
Pump
IG
Main switch
IM3
Module switch 3
IM4
Module switch 4
VE1
Fan
23 24 25 26 27 28
23 24 25 26 27 28
M1D4
23 24 25 26 27 28
b
J6-3
b
SR
J6-10
h
J6-12
h
SF
J6-5
b
J7-6
b
TSC
FL
J7-7
bl
J7-8
h
J12-1
r
TS
J12-4 w
J12-5
h
SM
b
J12-2
EA
AE
g
45
h
b
h
b
h
J8 J11 J12
J7
J15
J6
J5
J4
J3
F1
VE1
VG1
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
b
brown
h
blue
r
red
w
white
bl
black
g
yellow/green
y
yellow
gr
green
INSTALLATION
h
TB
b
h
TSC
b
bl
J10 J9
J1
J2
g
IM4