41
Control diagram
BCH - 25 & 30, 230.3.50, 400.3.50
A1:
B1:
B2:
B3:
F2:
F3:
F5:
F6:
F7:
M1:
M2:
M3:
R2:
R3:
R4:
RD:
ELECTRONIC
PLAQUE
OUTDOOR
SENSOR
DISCHARGE
SENSOR
LIQUID
SENSOR
INDOOR FAN
THEMAL
RELAY
OUTDOOR
FAN THERMAL
RELAY
AUTOMATIC
PRESSURE
CUT-OUT28 bar
24V AMBIENT
THERMOSTAT
AIR FLOW
RATE
CONTROL
COMPRESSOR
INDOOR FAN
MOTOR
OUTDOOR
FAN
DUCT
HEATER
DRAIN PAN
HEATER
CASING
HEATER
DEFROSTING
RELAY
I-1876/a
BCH-25,30
230.3.50
400.3.50
WHEN AN ELECTRIC HEATER IS INSTALLED,
FIT AN F7 AIR FLOW CONTROL
*
Y1
A1
F2
4A
B
B1 72 BB1
KM2
(14)
B2
13
14
K14
75
3
6
K5
(16)
K1
(14)
3
4
76
KM3
74
K1
11 11
9 9
6 6
79 78
O
R
B Y
W
G
O
R
B Y
W
G
F6
B
KM2
77
1
2
3
4
5
6
13 14
(02)
(10)
F2
13
14
(02)
10 10
2 2
K5
(16)
45
78
K5
(16)
K4a
12 12
1 1
7 7
3 3
4 4
8 8
K5
1
2
3
4
5
6
13 14
(03)
1
2
3
4
5
6
13 14
(01)
1
2
3
4
5
6
13 14
(06)
(2)
24 V
T1
63 VA
L
F1
2A
220 V
240 V
S1
L1
K4a
(9)
1
2
K14
(12)
1
2
K1
(14)
1
2
(L3)
N N
N 1 N
R3
14
13
K12
(4)
17151491110876543 12 13
B1
B2
B3
A2
A1
16
73
B
P
A1
A2
F3
(03)
12
F5
230V.1.50 Hz
A2
A1
13
14
A2
*
F7
1
2
3
4
5
6
13 14
(07)
25
K15K12
21
23
A2
A1
A2
A1
X3/5 X2/5
X2/7
KM1
A2
A1
X3/4
X2/4
RD
R4
R1 R2 M1
M3
M2
K12
13
14
THE COMPONENTS INCLUDED IN THESE BOXES
ARE NOT SUPPLIED BY THE MANUFACTURER.
THE COMPONENTS INCLUDED IN THESE BOXES ARE STANDARD
ACCESSORIES SUPPLIED BY THE MANUFACTURER.
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