5
7
7.4
[Fig. 7.4.1]
TB3
TB7
M1
M2
M1
M2
S
M1
TB5
TB15
MA
1 2
M2
A B
S
51
<P250>
G-50
000
D
Power supply unit
IC
CN41
01
TB3
TB7
M1
M2
M1
M2
S
M1
TB5-1
TB5-2
M2
S
51
OC
<P250>
IC
01
TB3
TB7
M1
M2
M1
M2
S
M1
TB15
MA
1 2
M2
A B
S
52
OC
<P250>
02
TB15
MA
1 2
A B
TB3
TB7
M1
M2
M1
M2
S
M1
TB5
TB5-1
TB5-2
M2
S
51
OC
IC
(model 250)
IC
(model 500)
01
TB3
TB7
M1
M2
M1
M2
S
M1
TB15
MA
1
2
M2
A
B
S
53
OC
03
04
M1
M2
S
TB3
TB7
M1
M2
M1
M2
S
54
OC
OC
A
B
S
A
B
S
TB2
*2 The Model 250 indoor unit
contains one indoor controller board.
A
CN41 as it is
A
Replace CN41
with CN40
B
Group 1
C
Group 2
A
CN41 as it is
B
CN41 as it is
*1 The numbers shown
in the square ( ) are addresses.
* The Model 500 indoor unit
contains two indoor controller boards.
E
DC Power supply (DC 12V)
[Fig. 7.4.2]
[Fig. 7.4.3]
• When there is a single Model 250 unit
• When there is a single Model 500 unit (Two refrigerant circuits)
• When connected to G50