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8-8. FUNCTION OF SWITCHES
PUHZ-W50VHA2
PUHZ-W50VHA2-BS
Switch
Function
Mark
No.
1
Manual defrost
2
To clear error history
SW1
3
No function
4
Abnormal disregard
5
No function
6
No function
1
No function
SW4
2
No function
1
Silent setting (FAN)
2
Silent setting (Hz)
3
No function
SW5
4
No function
Defrost control
5
selection
6
No function
1-3
Model Setting
Single phase/
SW6
4
3 phase
5-8
Model Setting 2
1
No function
SW7
2
No function
3-6
No function
1
Mode selection
2
Max. current setting
SW8
Separate Interface/Flow
3
temp.controller - outdoor
unit power supplies
SW9
1-4
No function
<Important Note>
Spare PCBs, however, will be supplied without any settings, which means that all Dip switches are switched OFF.
When servicing, please make sure to set all switches correctly, referring to the previous PCB which is removed from the unit.
*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 these conditions written below are satisfied.
• Heat mode setting
• 10 minutes have passed since compressor starts operating or previous manual defrost is 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.
OCH605A
PUHZ-W50VHA2R1
PUHZ-W50VHA2R1-BS
Selection
ON (with)
OFF (without)
ON to start
usual setting
ON to clear
usual setting
–
–
Disregard
Normal
–
–
–
–
–
–
–
–
Silent setting (FAN)
usual setting
Silent setting (Hz)
usual setting
–
–
–
–
For high humidity
Standard
–
–
SW6
Model
1
2
3
W50VHA2
1
0
1
1=ON, 0=OFF
3 phase
Single phase
SW6
Model
5
6
7
W50VHA2
1
1
0
1=ON, 0=OFF
–
–
–
–
–
–
Energy saving mode
Powerful mode
Max. current
Model
OFF
W50VHA2
13 A
Separate power
Outdoor unit power
supply
supply
–
–
Default setting*
OFF
Switch ON to force defrosting
Switch ON to clear (erase) the
following status:
OFF
(1)Check codes and Suspension flags in RAM
(2)Check codes and Suspension flags in EEPROM
OFF
Check code (P8,UH):
OFF
Abnormal detection disregard
OFF
OFF
OFF
OFF
OFF
Fan speed setting in silent mode
OFF
Hz setting in silent mode
OFF
OFF
Switches to optimal defrosting opera-
OFF
tion for low-temperature and high-
humidity regions.
OFF
As shown in the left
table
OFF
As shown in the left
Make sure to set
8
table
SW6-5 to 8 correctly
0
OFF
OFF
OFF
OFF
ON
OFF
11 A
Power supply connection method
OFF
selection
OFF
40
Function details
Effective timing
Always
Always
–
Always
–
–
–
–
Always
–
–
–
–
–
–
Always
–
–
–
Always
When power
–
supply ON
When power
supply ON
–
–
–
–
–
–
–
–
–
–
–
–
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