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(2) Function of connectors
Types
Connector
Connector
CN31
SW6-1
SW6-2
SW6-3
SW6
SW6-4
SW6-5
SW6-6
SW8
SW8-1
SW10-1
SW10
SW10-2
W 1 As for SW8, see also 12-10 (1) Function of switches, as SW8 sets the replacement operation as well.
Special function
(a) Low-level sound priority mode (Local wiring)
Unit enters into Low-level sound priority mode by external signal input setting.
Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual.
Adding a commercial timer or on-off switch contactor setting to the CNDM connector which is optional contactor for Demand
input located on the outdoor controller board enables to control compressor operation frequency.
W The performance is depends on the load of conditioned outdoor temperature.
How to wiring
<Low-level sound priority mode circuit>
Insulate this point securely as
this is not used.
Purchased at local
Relay
supply
~
SW1
X
SW1 : Switch
X : Relay (Contact spec. : DC 1mA)
1) Make the circuit as shown above with Adaptor for external signal input(PAC-SC36NA).
2) Turn SW1 to on for Low-level sound priority mode.
Turn SW1 to off to release Low-level sound priority mode and normal operation.
(b) On demand control (Local wiring)
Demand control is available by external input. In this mode, power consumption is decreased within the range of usual
0~100%.
How to wiring
Basically, the wiring is the same (a).
Connect an SW 1 which is procured at field to the between Orange and Red(1 and 3) of the Adaptor for external signal
input(PAC-SC36NA), and insulate the tip of the brown lead wire.
It is possible to set it to the following power consumption (compared with ratings) by setting the SW7-1, 2.
Power consumption
SW7-1
SW7-2
(SW1 on)
OFF
OFF
0% (Operation stop)
ON
OFF
OFF
ON
Function
Emergency operation
Model select
X
Max. 10 m including local wiring
50%
75%
Action by the switch operation
Short
Start
Adaptor for external
signal input
Outdoor unit
(PAC-SC36NA)
controller board
Red 3
Brown 2
Orange 1
CNDM
58
Effective timing
Open
When power supply ON
Normal
W 1
W 1
3
2
1
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