Mitsubishi Electric PUZ-HWM140VHA Service Manual page 60

9-9. FUNCTION OF SWITCHES
PUZ-HWM140VHA(-BS)
Type of
Switch No.
Switch
1
2 Abnormal history clear
3
SW1
4
5
6
1
SW4
2
1
2
SW8
Separate indoor/outdoor
3
1
2
automatic recovery
SW5
3, 4
5
6
1
DIP
switch
2 Service check function
3
*3
SW7
4
5
6
1
2
SW9
Starting Ambient temp.
3,4
1
2
3
4
SW6
5
6
7
8
*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 started operating or previous manual defrost finished.
• Pipe temperature is less than or equal to 8°C.
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 SW7-2, 4, 5, 6 usually. Trouble might be caused by the usage condition.
*4 SW7-1 is setting change over of Demand. It is effective only in the case of external input. (Local wiring is necessary. Refer to the next page: Special function.)
*5 This function displays the backup data when errors occurred. (Last 4 data at the maximum)
*6 SW6-1 to 3: Function Switch
OCH748
PUZ-HWM140YHA(-BS)
Action by the switch operation
Function
ON
Manual defrost *1 Start
Clear
ON
1 2 3 4 5 6
Refrigerant address
0
setting
ON
1 2 3 4 5 6
3
No function
No function
No function
No function
Used
unit power supplies
No function
Power failure
Auto recovery
*2
No function
Capacity operation Passive mode
DHW operation Quick mode
*4
Mode select Demand function
*5
Backup data
No function
No function
No function
Defrost setting For high humidity
No function
No function
Ambient temp. of ZUBADAN blink injection
becomes effective.
SW9-3 SW9-4
OFF
of blink injection
OFF
ON
ON
Model select
The black square (
OFF
Normal
Normal
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
1 2
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
4 5
– –
– –
– –
– –
Not used
– –
No auto recovery
– –
Active mode
ECO mode
Low noise mode
Normal
– –
– –
– –
Normal
– –
– –
Ambient temp.
OFF
[ 3°C (Initial setting)
ON
[ 0°C
OFF [ −3°C
ON [ −6°C
*6
*6
60
■
) indicates a switch position.
Effective timing
When compressor is working in heat operation
OFF or operating
When power supply ON
–
–
–
–
When power supply ON
–
When power supply ON
–
When power supply ON
When power supply ON
When power supply ON
Always
–
–
–
Always
–
–
Always
*1