OCH790 _89
■
SW9: Function switch
Initial setting
1
ON
OFF
2 3 4
The black square (■) indicates a switch position.
Bit Function
Operation in each switch setting
Purpose
Additional information
ON
OFF
When to set
1
Auto change over from
remote controller (IC
with the minimum
address)
Activated
*6
Deactivated Before
turning the
power ON
Enables the indoor unit with the minimum
address to select AUTO mode, and
switches the operation mode of the other
indoor units to the same mode.
Cannot be set when the centralized
control is ON.
2
Switching the Silent/
Demand mode
Demand
control
Silent mode
Any time
-
About the Silent mode/Demand control
setting, refer to “Outdoor unit input/output
connector”.
3
-
-
-
-
-
-
4
-
-
-
-
-
-
*6.
When a PWFY series is connected, this function is always disable regardless of the switch.
8-6. Outdoor unit input/output connector
■
State (CN51)
CN51
X
5
4
3
A
E
F
G
B
C
D
5
1
Y
~
Y
X
L
1
L
2
A: Distant control board
B: Relay circuit
C: External output adapter (PAC-SA88HA-E)
D: Outdoor unit control board
E: Lamp power supply
F: Procure locally
G: Max. 10m [32 ft]
L1: Error display lamp
L2: Compressor operation lamp
X, Y: Relay (coil rating: ≤ 0.9W. DC 12 VDC)
■
Auto changeover (CN3N)
1
3
A
E
B
F
G
C
D
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 [32 ft]
SW1: Switch
SW2: Switch
X, Y: Relay (contact rating: ≥ 0.1 A. 15 VDC, min. applicable load: ≤ 1 mA)
SW1-ON: Heating, SW1-OFF: Cooling
SW2-ON: Validity of SW1, SW2-OFF: Invalidity of SW1
■
Silent Mode/Demand Control (CN3D)
1
3
A
E
F
G
B
C
D
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 [32 ft]
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
ON
ON
OFF
OFF
OFF
ON
ON
100% (Normal)
75%
50%
0% (Stop)
