Mitsubishi Electric EHST20C-VM6HB Service Manual page 63

PUHZ-SW75VHAR4.UK
PUHZ-SW75VHAR4-BS.UK
PUHZ-SW120VHAR4.UK
PUHZ-SW120VHAR4-BS.UK
Type of
Switch No.
Switch
1
Manual defrost *
2
Abnormal history clear
3
SW1
4
Refrigerant address
DIP
setting
5
switch
6
1
SW4
2
Push
SWP
switch
1
2
automatic recovery *
SW5
3,4,5
6
1
2
3
SW7*
3
4
Breaker size setting
(Only SW75)
5
DIP
6
switch
1
Use of existing pipe
SW8 2
3
1
SW9 2
3,4
1
2
3
4
SW6
5
6
7
8
SW5 6
*1 Manual defrost should be done as follows.
1Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2Manual 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 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.
*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 Please do not use SW7-3 to 6 usually. Trouble might be caused by the usage condition.
*4 It is effective only in case of external input. (Local wiring is necessary. Refer to the next page: Special function.)
OCH533D
PUHZ-SW100VHAR4.UK
PUHZ-SW100VHAR4-BS.UK
PUHZ-SW120YHAR4.UK
PUHZ-SW120YHAR4-BS.UK
Function
1
ON
1 2 3
ON
1 2 3 4 5 6
No function
No function
Pump down
No function
Power failure
Auto recovery
2
No function
model select
Mode select *
4
No function
No function
No function
4
OFF
OFF
ON
For high humidity
Defrost setting
No function
No function
No function
Function switch
No function
MODEL
ON
75V
OFF
Model select
ON
100V
OFF
ON
120V
OFF
PUHZ-SW100YHAR4.UK
PUHZ-SW100YHAR4-BS.UK
Action by the switch operation
ON
Start
Clear
ON ON
4 5 6 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
3
4
—
—
Start
—
No auto recovery
—
Following SW5-6 reference
Low noise mode
—
—
SW7 Breaker size
Both for indoor unit
Only for outdoor unit
5
and outdoor unit
OFF 25A (Default)
ON 20A
ON 16A
Used
—
—
—
Valid
—
SW6 SW5-6
ON
OFF
1 2 3 4 4 5 6 7 8 1 2 3 4 5 6
ON
OFF
1 2 3 4 4 5 6 7 8 1 2 3 4 5 6
ON
OFF
1 2 3 4 4 5 6 7 8 1 2 3 4 5 6
63
Effective timing
OFF
When compressor is working
Normal
in heating operation. *
Normal Off or operating
When power supply ON
2
5
—
—
Under suspension
Normal
—
When power supply ON
—
Always
—
—
When power supply ON
20A
16A
—
Normal
Always
Not used
Always
—
—
—
Normal Always
—
MODEL SW6
ON
100Y
OFF
1 2 3 4 4 5 6 7 8
ON
120Y
OFF
1 2 3 4 5 4 6 7 8
1
—
—
—
—
—
—
—
—
—
—
SW5-6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6