Mitsubishi Electric PUHZ-W112VHA, Руководство по обслуживанию

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OCH562D
8-9. FUNCTION OF SWITCHES
Switch
Function
Selection
Default setting Function details Effective timing
Mark No. ON (with) OFF (without)
SW1
1 Manual defrost ON to start usual setting OFF Switch ON to manual defrost Always *1
2 To clear error history ON to clear usual setting OFF
Switch ON to clear (erase)
the following:
(1)Check codes and
Suspension flags in RAM
(2)Check codes and Suspension
flags in EEPROM
Always
3 No function – – OFF –
Always
4 Abnormal disregard Disregard Normal OFF
Check code (P8,UH):
Abnormal detection disregard
5 No function – – OFF – –
6 No function – – OFF – –
SW5
1 Silent setting (FAN) Silent setting (FAN) usual setting OFF Fan speed setting in silent mode
Always
2 Silent setting (Hz) Silent setting (Hz) usual setting OFF Hz setting in silent mode
3 No function – – OFF – –
4 No function – – OFF – –
5
Defrost control
selection
For high humidity Standard OFF
Switches to optimal defrosting
operation for low-temperature
and high-humidity regions.
–
6 No function – – OFF – –
SW6
1-3 Model Setting
Model
SW6
1 2 3
W 0 0 1
1=ON, 0=OFF
As shown in the left
table
– –
4
Single phase /
3 phase
Do NOT use Single phase OFF – –
5-8 Model Setting 2
Model
SW6
5 6 7 8
W112 0 1 1 0
1=ON, 0=OFF
As shown in the left
table
Make sure to set
SW6-5 to 8 correctly
–
SW7 1-6 No function – – OFF – –
SW8
1 Mode selection Energy saving mode Powerful mode OFF – Always
2 Max. current setting
Model
Max. current
OFF ON
W112 29.5A 23.0A
OFF –
When power supply
ON
3
Separate Interface/Flow
temp.controller - outdoor
unit power supplies
Separate power
supply
Outdoor unit power
supply
OFF
Power supply connection
method selection
When power supply
ON
SW9 1-4 No function – – – – –
<Important Note>
All these DIP switches on PUHZ-W112VHA are set as shown above.
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 have been satisfied.
Manual defrost can be done if above conditions have been 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.
PUHZ-W112VHA PUHZ-W112VHAR2
PUHZ-W112VHA-BS PUHZ-W112VHAR2-BS
PUHZ-W112VHAR1 PUHZ-W112VHAR3
PUHZ-W112VHAR1-BS PUHZ-W112VHAR3-BS