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40
Control diagram
BCH - 20, 230.3.50, 400.3.50
A1:
B1:
B2:
B3:
F3:
F4:
F5:
F6:
F7:
M1:
M2:
R1:
R2:
R3:
R4:
RD:
ELECTRONIC
PLAQUE
OUTDOOR
SENSOR
DISCHARGE
SENSOR
LIQUID
SENSOR
AUT
OMA
TIC
PRESSURE
CUT
-OUT
28 bar
INDOOR F
A
N
THERMAL
RELA
Y
OUTDOOR
FA
N
THERMAL
24V AMBIENT
THERMOST
A
T
AIR FLOW
RA
TE
CONTROL
COMPRESSOR
INDOOR F
A
N
MOT
O
R
INDOOR
HEA
TER
DUCT
HEA
TER
DRAIN P
A
N
HEA
TER
CASING
HEA
TER
DEFROSTING
RELA
Y
I-1301/e
BCH-20
230.3.50
400.3.50
WHEN
AN ELECTRIC HEA
TER IS INST
ALLED,
FIT
AN F7
AIR FLOW CONTROL
*
Y1
A1
F2
4A
B
B1
72
B
B1
K2
(14)
B2
13
14
K14
75
3
6
K5
(16)
K1
(14)
3
4
76
K3
74
K1
11
11
9
9
6
6
79
78
O
R
B
Y
W
G
O
R
B
Y
W
G
F6
B
K2
77
1
2
3
4
5
6
13
14
(02)
(10)
F4
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
(05)
(2)
24 V
T1
63 V
A
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
K4
(4)
17
15
14
91
1
10
8
7
6
5
4
3
12
13
B1
B2
B3
A2
A1
16
73
B
P
A1
A2
F5
(03)
12
F3
230V.1.50 Hz
A2
A1
13
14
A2
*
F7
1
2
3
4
5
6
13
14
(07)
25
K12
K4
21
23
A2
A1
A2
A1
K15
A2
A1
13
14
K12
X3/5
X2/5
X2/7
K6
A2
A1
X3/4
X2/4
RD
R4
R1
R2
M1
M3
M2
THE COMPONENTS INCLUDED IN
THESE BOXES
ARE NOT SUPPLIED BY
THE MANUF
ACTURER.
THE COMPONENTS INCLUDED IN
THESE BOXES
ARE ST
ANDARD
ACCESSORIES SUPPLIED BY
THE MANUF
ACTURER.