38
9 WIRING DIAGRAM
AKM11
X17
X14
1
1
X12
X23
X16
X2
X21
X8
X13
X19
X9
X25
X11
X18
X22
1
1
1
1
1
1
1
1
6
1
5
12
10
4
3
5
4
6
5
6
X15
X1
X4
X6
1
3
1
5
1
2
1
6
X3
X7
orange
F2=4A T
CN1
X10
A9
SW1
F.S.(1)
black (TA) black (TA)
pink (OT) red (OT) gnd
red (SE) gnd
orange (SE)
6
1
1
2
5
1
red (+)
yellow (B) orange (A) black (-)
yellow (B)
black (-)
red (+)
orange (A)
white (TBT)
white (TBT)
X11
X14
X25
REC
1
2
black (TA) black (TA)
2
1
3
white (W)
black (C)
red (R) (+24Vac)
CN3A
CN2
BE21
CN1
CN2
1
2
3
4
1
2
2
CN3A
1
3
2
1
3
4
white
black
blue
black
white
CN1
white
black
white
black
black
white
black
white
black
white
M4
120 V auxiliary
L
N
120 V
black
white
white
5
4
2
1
3
6
black
black
white
OPE
OPE
3
4
2
1
black
P
white
pink
4
5
3
1
2
M3
X1
GAS VALVE
black (-)
orange (A)
yellow (B)
red (+)
-
A
B
+
CE4 (underneath bottom panel)
TBT
OT
SE
white (TBT)
white (TBT)
pink (OT)
white
black
CE8 (underneath bottom panel)
red (SE - OT) gnd
orange (SE)
W
R
C
red (R) (+24Vac)
white (W)
black (C)
G
CE4
(- A B +)
Bus 485
CE8
TBT
Low Temperature
Thermostat
SE - G
Outdoor Temperature
Sensor
OT - G
Open therm (OTBus)
R
Room thermostat (24V)
W
Room Thermostat -
Heating
C
Room Thermostat -
Common
white
black
green
X6
3
1
2
a
b
N
L
S.E.
black
white
ZAG 2
black
X15
white
F Hv
1
2
red (+)
blue (HS)
pink (PWM)
grey (-)
X13
F Lv
1
4
red
red
S.S.
-t°
-t°
R.S.
blue
-t°
F.S.
grey
grey
W.H.L.
white
white
1
12
X9
blue
A.P.S.
1
2
brown
black
T.F.
black
T.H.E.
4
3
2
1
5
red
blue
yellow
white
3W
X12
grey
grey
red
red
black (alim.)
blue (sign.)
brown (-)
D.H.W.T.
MOD
P.T.
1
3
1
X19
10
F.M.
1 3
orange (-)
blue (sign.)
violet (alim.)
-t°
Family PRO 42 KIS - Combi Model
AKM11
Main PCB
REC
Control Interface
BE21
24VAC Thermostat
X1-X25
Connectors
CN1-CN2-CN3A
Connectors
S.W.1
CO
2
function button
F.S.(1)
Flame sensor
F2
Fuse 4A T
M3-M4
Terminal strip for electrical con-
nection high power
CE4
External links connector:
(-
A B
+) Bus 485
CE8
External links connector:
TBT
Low Temperature Thermostat
SE – G Outdoor Temperature Sensor
OT – G Open therm (OT )
R
Room Thermosat (24V)
W
Room Thermosat - Heating
C
Room Thermosat - Common
X11
SE
Outdoor temperature sensor
OT
Opentherm (OT )
TA
Room thermostat (voltage free
contact input)
P
Pump
OPE
Gas valve solenoids
F Hv
Fan power supply 120 V
F Lv
Fan signal control
3W
3 way valve motor
ZAG 2 (US…)
Spark generator
S.E.
Spark electrode
W.H.L.
Water high limit
T.H.E.
Thermostat heat exchanger
T.F.
Thermal fuse
F.S.
Flue sensor
A.P.S.
Air pressure switch
S.S.
Supply sensor (thermistor)
R.S.
Return sensor (thermistor)
F.M.
Flow meter
D.H.W.T
Domestic hot water temperature
sensor
P.T.
Low water cutoff
MOD
Modulator gas valve
9.1
Electrical diagram
NO
TICE: It is r
ec
o
mme
nd
ed to c
o
mpl
y
wit
h t
er
mi
n
al
m
a
rking
s:
L (LINE) N (Neut
ral) and Ch
as
sis G
rou
nd
Summary of Contents for Family PRO 42 IS
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