Mitsubishi Electric PUZ-M200YKA Service Manual page 67

Outdoor M-NET board (optional)
CN2M
Connect to M-NET
LED2
Energizing
display of
M-NET board
(5V power supply)
CND
Power supply (5V/12V) input
2 to 3 5 V DC Input
1 to 3 12 V DC Input
10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
Type
No.
Function
of Switch
switch
1
Manual defrost *
2
Abnormal history clear
3
4
SW1
DIP
Refrigerant address setting
switch
5
6
1
Test run
SW4
2 Test run mode setting
Push
SWP
Pump down
switch
* 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 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°C.
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.
OCH737
LED13
Receiving
)
[ ]
1, 2 : +
3 : –
Action by the switch operation
ON
1 Start
Clear
ON
1 2 3 4 5 6
0
ON
1 2 3 4 5 6
4
ON
1 2 3 4 5 6
8
ON
1 2 3 4 5 6
12
Operating
Heating
Start
LED11
LED12
Outdoor unit
Transmitting
connecting display
SW12
M-NET address
(10s digit)
The black square ( ) indicates a switch position.
OFF
Normal
Normal
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6
1 2
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6
5 6
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6
9 10
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6
13 14
OFF
Cooling
Normal
67
SW1
Switch for communication
display between
M-NET and outdoor board
CN5
Serial communication
with outdoor board
SW11
M-NET address (1s digit)
Effective timing
When compressor is working
in heating operation. *
off or operating
1 2 3 4 5 6
3
1 2 3 4 5 6
7
When power supply ON
1 2 3 4 5 6
11
1 2 3 4 5 6
15
Under suspension
Under suspension
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