Mitsubishi PUHZ-SW160YKA-BS.UK, Service Manual

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1 2 3
0 1
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3
4 5
4 5 6
ON
1 2 3 4 5 6
ON
2 3
10-7. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
* 1 Forced defrost should be done as follows.
1
Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2
Forced defrost will start by the above operation
1
if all these conditions written below are satisfied.
• Heat mode setting
• 10 minutes have passed since compressor started operating or previous compulsory defrosting finished.
• Pipe temperature is less than or equal to 8°C.
Forced defrost will finish if certain conditions are satisfied.
Forced defrost can be done if above conditions are satisfied when DIP SW1-1 is changed from OFF to ON.
After DIP SW1-1 is changed from OFF to ON, there is no problem if DIP SW1-1 is left ON or changed to OFF again.
This depends on the service conditions.
The black square ( ) indicates a switch position.
* 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 all units do not 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 next page: Special function)
* 4 Please do not use SW7-3 to 7-6 usually. Trouble might be caused by the usage condition.
* 5 SW5-1 to 5: Function switch
Type of
Switch Swich No.
Function
Action by the switch operation
Effective timing
ON OFF
DIP
switch
SW1
1 Forced defrost * 1 Start Normal
When compressor is working
in heating operation. * 1
2 Abnormal history clear Clear Normal off or operating
3
Refrigerant address setting
When power supply is
ON
4
5
6
SW4
1 No function — — —
2 No function — — —
Push
switch
SWP Pump down Start Normal Under suspension
DIP
switch
SW5
1 No function — — —
2
Power failure
automatic recovery * 2
Auto recovery No auto recovery When power supply ON
3,4,5 No function — — —
6 Model select Following SW5-6 reference
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
SW8
1 No function — — —
2 No function — — —
3 No function — — —
SW9
1 No function — — —
2 No function — — —
3,4 No function — — —
SW6
1
Model select
2
3
4
5
6
7
8
SW5 6
The black square (
■
) indicates a switch position.
1 2 3 4 5 6 7 8
OFF
ON
1 2 3 4 5 6
OFF
ON
1 2 3 4 5 6 7 8
OFF
ON
1 2 3 4 5 6
OFF
ON
SW6 MODEL SW5-6 * 5
PUHZ-SW160YKA
PUHZ-SW200YKA
OCH583