Outdoor M-Net Board (Optional) - Mitsubishi Electric Mr.Slim PUHZ-ZRP35VKA Service Manual

Outdoor M-NET board (optional)

CN2M
LED5
Connect to M-NET
Energizing
display of
M-NET board
(12V power
supply)
LED1
Energizing
display of
M-NET board
(5V power
supply)
CND
Power supply (5V/12V) input
2 to 3 5V DC Input
1 to 3 12V DC Input
10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
Type
No.
Function
of Switch
switch
1
Forced defrost *1
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 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.
OCH527
LED4
Receiving
)
[ ]
1, 2 : +
3 : –
Action by the switch operation
ON
Start
Clear
ON ON
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
4 5
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
8 9
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
12 13
Operating
Heating
Start
79
LED3
LED3
Outdoor unit
Transmitting
connecting display
SW12
M-NET address
(10s digit)
The black square ( ) indicates a switch position.
OFF
Normal
Normal
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
2 3
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
6 7
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
10 11
ON ON
1 2 3 4 5 6 1 2 3 4 5 6
14 15
OFF
Cooling
Normal
CN5
Serial
communication
with outdoor board
SW1
Switch for
communication
display between
M-NET and board
SW11
M-NET address (1s digit)
Effective timing
When compressor is working
in heating operation. 1
off or operating
When power supply ON
Under suspension
Under suspension