Mitsubishi Electric PUZ-HA30NHA5, Service Manual

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59
*1 Manual defrost should be done as follows.
1
Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2
Manual 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 manual defrost is finished.
• Pipe temperature is less than or equal to 46ºF [8ºC].
Manual defrost will finish if certain conditions are satisfied.
Manual 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.
Switch
Type
of
switch
DIP
switch
Push
switch
SW1
1
2
No.
Function Effective timing
Action by the switch operation
Manual defrost *
1
Start Normal
When compressor is working
in heating operation. *
1
Abnormal history clear
Refrigerant address
setting
When power supply ON
Clear Normal off or operating
SWP
6
5
4
3
Under suspension Pump down Start Normal
SW4
SW8
1
2
1
2
3
Test run Operating OFF
Under suspension
Test run mode setting Heating Cooling
Use of existing pipe Used Not used
No function — —
Separate indoor/outdoor
unit power supplies
Used Not used
Always
—
When power supply ON
ON OFF
1 2 3
0 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 6
ON
1 2 3
4 5 6 7
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
8 9 10 11
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
12 13 14 15
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
10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
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