65
(2) Function of connectors and jumpers
CN31
Types
Connector
Function
Effective timing
Connector
SW6
or
Jumper
(
RP1.6-6VHA)
SW
(RP4-6YHA)
SW6
SW10
SW6-1
(J1)
SW6-2
(J2)
SW6-3
(J3)
SW6-4
(J4)
SW6-5
(J5)
SW6-6
(J6)
1
Model
SW6(JP)
2
3
Start
Short
Open
Action by open/ short operation
Capacity settings
Capacity settings
Emergency operation
When power supply ON
:ON(Short) :OFF(Open)
PUHZ-RP1.6VHA
PUHZ-RP2VHA
PUHZ-RP2.5VHA
PUHZ-RP3VHA
PUHZ-RP4VHA
PUHZ-RP5VHA
PUHZ-RP6VHA
Normal
4
5
6
MODELS
RP4Y
SW6
SW10
RP5Y
RP6Y
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2
ON
OFF
1 2
ON
OFF
1 2
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
Special function
(a) Low-level sound priority mode (Local wiring)
Unit enters into Low-level sound priority mode by SW7-1, 2 and 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. In Low-level sound priority
mode, the maximum outdoor fan steps is regulated to 8 and the maximum operation frequency of the compressor is
regulated to specified range in cool mode. In heating mode, the maximum compressor operation frequency is regulated to
specified range.
W
The performance is depends on the load of conditioned air of the room.
How to wiring
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, the outdoor unit stops and indoor unit operates with fan mode.
W
The setting of SW-7 is not required for the demand control.
How to wiring
Basically, the wiring is the same.
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.
CNDM
CNDM
X
SW1
~
X
Max. 10 m including local wiring
SW1 : Switch
X : Relay (Contact spec. : DC1mA)
Relay
supply
Red
Brown
Orange
3
2
1
Purchased at local
Adaptor for external
signal input
(PAC-SC36NA)
Outdoor unit
controller board
3
2
1
Insulate this point securely as
this is not used.
<Low-level sound priority mode circuit>
<Outdoor unit controller board>
OC294-D-3.qxp 05.3.9 11:04 AM Page 65
