Mitsubishi Electric PUHZ-RP200YHA, Руководство по обслуживанию

Страница: 58 / 111

58
(2) Function of connectors
CN31
Types Connector Function Effective timing
Connector
SW6
SW8
SW10
SW6-1
SW6-2
SW6-3
SW6-4
SW6-5
SW6-6
SW8-1
SW10-1
SW10-2
Start
Short Open
Action by the switch operation
Model select
Emergency operation
When power supply ON
Normal
W
1
W
1
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
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.
CNDM
X
SW1
~
X
Max. 10 m including local wiring
SW1 : Switch
X : Relay (Contact spec. : DC 1mA)
Relay
supply
Red 3
Brown 2
Orange 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>
SW7-1 SW7-2
OFF 0% (Operation stop)
75%
50%
OFF
ON
OFF
OFF
ON
Power consumption
(SW1 on)
OC338C-2.qxp 07.5.24 11:30 AM Page 58