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9-7. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
PUHZ-SHW80VAA.UK
PUHZ-SHW80VAA-BS.UK
PUHZ-SHW80YAA.UK
PUHZ-SHW80YAA-BS.UK
PUHZ-SW75VAA.UK
PUHZ-SW75VAA-BS.UK
PUHZ-SW75YAA.UK
PUHZ-SW75YAA-BS.UK
PUHZ-SW75VAA-SC.UK
Type
No.
Function
of
Switch
switch
1
Manual defrost *
2
Abnormal history clear
3
4
Refrigerant address
setting
SW1
DIP
5
switch
6
1
No function
SW4
2
No function
1
Use of existing pipe
2
SW8
No function
Separate indoor/outdoor
3
unit power supplies
Push
SWP
Pump down
switch
*
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 finished.
• Pipe temperature is less than or equal to 8:.
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.
OCH651A
PUHZ-SHW112VAA.UK
PUHZ-SHW112VAA-BS.UK
PUHZ-SHW112YAA.UK
PUHZ-SHW112YAA-BS.UK
PUHZ-SW100VAA.UK
PUHZ-SW100VAA-BS.UK
PUHZ-SW100YAA.UK
PUHZ-SW100YAA-BS.UK
PUHZ-SW75YAA-SC.UK
Action by the switch operation
ON
1
Start
Clear
ON
ON
1 2 3
4 5 6
1 2 3 4 5 6
0
1
ON
ON
1 2 3
4 5 6
1 2 3 4 5 6
4
5
—
—
Used
—
Used
Start
47
OFF
Normal
Normal
ON
ON
1 2 3 4 5 6
1 2 3 4 5 6
2
3
—
—
Not used
—
Not used
Normal
Continue to the next page
Effective timing
When compressor is working
in heating operation.*
1
off or operating
When power supply ON
—
—
Always
—
When power supply ON
Under suspension
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