Mitsubishi Electric PUY-A12NKA7, Service Manual

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*2 Power failure automatic recovery can be set by either remote controller or this DIP SW. If one of them is set to ON, Auto
recovery activates. Please set Auto recovery basically by remote controller because not all units have DIP SW.
Please refer to the indoor unit installation manual.
*3 SW7-1 is setting change over of Demand/Low noise. It is effective only in case of external input.
(Local wiring is necessary. Refer to the next page: Special function)
*4 Please do not use SW7-3 to 6 usually. Trouble might be caused by the usage condition.
*5 SW6-1 to 3, SW5-1 to 4, 6: Function switch
(2) Function of connector
CN31
Types
Connector
Function Effective timing
Connector Start
Short Open
Action by open/ short operation
Emergency operation When power supply ON Normal
Type of
Switch Switch No.
Function
Action by the switch operation
Effective timing
ON OFF
DIP
switch
SW5
1 No function — — —
2
Power failure
automatic recovery *2
Auto recovery No auto recovery When power supply ON
3,4,6 No function — — —
SW7
*4
1 Mode select *3 Demand function Low noise mode Always
2 No function — — —
3 Max Hz setting (cooling) Max Hz (cooling)
o
0.8 Normal Always
4 Max Hz setting (heating) Max Hz (heating)
o
0.8 Normal Always
5 No function — — —
6 Defrost setting For high humidity Normal Always
SW9
1 No function — — —
2 Function switch Valid Normal Always
3,4 No function — — —
SW6
1
No function 2
3
4
Model select
The black square (■) indicates a switch position.
1 2 3 4 5 6
OFF
ON
PUZ-A12NKA7
MODEL SW6 SW5-5, 6 * 5
1 2 3 4 5 6
OFF
ON
PUY-A12NKA7
PUZ-A18NKA7
1 2 3 4 5 6
7 8
7 8
7 8
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
PUY-A18NKA7
1 2 3 4 5 6
OFF
ON
PUZ-A24NHA7
7 8
7 8
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
MODEL SW6 SW5-5, 6 * 5
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
7 8
7 8
7 8
7 8
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
7 8
7 8
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6
OFF
ON
PUY-A24NHA7
7 8 1 2 3 4 5 6
OFF
ON
PUZ-A30NHA7
PUY-A30NHA7
PUZ-A36NKA7
PUY-A36NKA7
PUZ-A42NKA7
PUY-A42NKA7
5
6
7
8
SW5 5
OCH636A