Mitsubishi Electric Mr. SLIM MSZ-FA25VA Technical Manual página 672

Funciones
(2) Function of connectors and switches
Connector
Types
Switch
Connector CN31
SW6-1
SW6-2
SW6-3
SW6
SW6-4
SW6-5
SW10
SW6-6
SW10-1
SW10-2
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.
WThe performance is depends on the load of conditioned outdoor temperature.
How to wiring
<Low-level sound priority mode circuit>
Purchased at local
Relay
supply
~
SW1
X
SW1 : Switch
X : Relay (Contact spec. : DC1mA)
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
OFF OFF 0% (Operation stop)
ON OFF
OFF ON
672
Function
Emergency operation
Model select
Insulate this point securely as
this is not used.
X
Max. 10 m including local wiring
(SW1 on)
50%
75%
Action by open/ short operation
Short
Start
MODEL SW6 SW10
ON ON
100V
OFF OFF
1 2 3 4 5 6
Adaptor for external
signal input
Outdoor unit
(PAC-SC36NA)
controller board
Red
3
Brown
2
Orange
1
CNDM
Effective timing
Open
When power supply ON
Normal
MODEL SW6
ON
125V
OFF
1 2 1 2 3 4 5 6
ON
140V
OFF
1 2 3 4 5 6
3
2
1
SW10
ON
OFF
1 2
ON
OFF
1 2