Mitsubishi Electric PUHZ-ZRP100YKAR1, Service Manual

Page: 82 / 147

82
Switch
Type
of
switch
DIP
switch
Push
switch
SW1
1
2
No.
Function Effective timing
Action by the switch operation
Forced defrost *1 Start Normal
When compressor is working
in heating operation. *1
Abnormal history clear
Refrigerant address setting
When power supply ON
Clear Normal off or operating
SWP
6
5
4
3
Under suspension
Pump down Start Normal
SW4
1
2
Test run Operating OFF
Under suspension
Test run mode setting
Heating Cooling
ON OFF
1 2 3
0 1 2 3
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3
4 5 6 7
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3
8 9 10 11
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3
12 13 14 15
4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
*1 Forced defrost should be done as follows.
1
Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2
Forced 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 compulsory defrosting finished.
• Pipe temperature is less than or equal to 8°C.
Forced defrost will finish if certain conditions are satisfied.
Forced 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.
The black square ( ) indicates a switch position.
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Outdoor M-NET board (optional)
LED2
Energizing
display of
M-NET board
(5 V power supply)
CN2M
Connect to M-NET
LED13
Receiving
LED11
Outdoor unit
connecting display
CN5
Serial communication
with outdoor board
SW11
M-NET address (1s digit)
SW12
M-NET address
(10s digit)
SW1
Switch for communication
display between
M-NET and outdoor board
CND
Power supply (5V/12V) input
2
to
3
5 V DC Input
1
to
3
12 V DC Input
)
)
1
,
2
: +
3
: –
] [
LED12
Transmitting
LED1
Energizing display
of M-NET board
(12 V power supply)
OCH527C