113
OCH673D
8-6. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR
State (CN51)
CN51
X
5
4
3
A
C
D
5
E
1
B
G
Y
F
~
Y
X
L
1
L
2
A
Distant control board
E
Lamp power supply
B
Relay circuit
F
Procure locally
C
External output adapter
G
Max. 10m
(PAC-SA88HA-E)
D
Outdoor unit control board
L
1
: Error display lamp
L
2
: Compressor operation lamp
X, Y: Relay (coil rating: ≤ 0.9W. DC 12 VDC)
Auto changeover (CN3N)
1
3
A
C
D
E
B
G
F
CN3N
X
Y
SW1
SW2
1
2
3
~
Y
X
A
Remote control panel
B
Relay circuit
C
External input adapter
(PAC-SC36NA-E)
D
Outdoor unit control board
E
Relay power supply
F
Procure locally
G
Max. 10 m
ON
OFF
SW1
Heating
Cooling
SW2
Validity of SW1
Invalidity of SW1
SW1: Switch
SW2: Switch
X, Y: Relay
contact rating: ≥ 0.1 A. 15 VDC
min. applicable load: ≤ 1 mA
Silent Mode/Demand Control (CN3D)
1
3
A
C
D
E
B
G
F
CN3D
X
Y
SW1
SW2
1
2
3
~
Y
X
A
Remote control panel
B
Relay circuit
C
External input adapter (PAC-SC36NA-E)
D
Outdoor unit control board
E
Relay power supply
F
Procure locally
G
Max. 10 m
SW1: Switch
SW2: Switch
X, Y: Relay
contact rating: ≥ 0.1 A. 15 VDC
min. applicable load: ≤ 1 mA
The silent mode and the demand control are selected by switching the DIP switch 9-2 on outdoor controller board.
It is possible to set it to the following power consumption (compared with ratings) by setting SW1, 2.
Outdoor controller board DIP SW9-2
SW1
SW2
Function
Silent mode
OFF
ON
─
Silent mode operation
Demand control
ON
OFF
OFF 100% (Normal)
ON
OFF 75%
ON
ON
50%
OFF
ON
0% (Stop)
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