Name And Function Of Each Switch On Outdoor Unit Control Pc Board - Panasonic U-8ME1E81 Service Manual

2. Settings of Indoor Unit Control PCB
2. Settings of Indoor Unit Control PCB
CN22
CN23
CN24
CN27
1

Name And Function Of Each Switch On Outdoor Unit Control PC Board

• Mode Select pin
(3P, Black) (CN40)
2
During normal drive
• Auto Address setting pin
(2P, Black) (CN30)
3
• Test Run pin
(2P, Black) (CN23)
• RC socket
(3P, Blue) (CN73)
4
• Drive pin
(2P, Black) (CN27)
• Stop pin
(2P, Black) (CN28)
• Vacuum pin
5
(2P, Black) (CN24)
Socket for Snow Area
• Snow socket
(3P, Red) (CN34)
6
Silent Socket
• Socket for silent mode
(2P, White) (CN33)
7
8
LED2
LED1
SW8
SW5
SW6
CN40
CN30
CN28
CN34
Changes to the cooling or heating mode. (Main outdoor unit is only usable.)
When the cooling side is short-circuit, all indoor units change to cooling mode.
When the heating side is short-circuit, changes to all heating mode.
Short-circuit for 1 second or longer.
When the short-circuit remains in effect for more than 1 second during auto address, the auto
address is interrupted.
When set to short-circuit, changes to the test run mode.
(The test run mode is automatically cancelled after an hour.)
When short-circuit is cancelled, the test run mode is cancelled.
Connects to the outdoor unit maintenance remote control and the content of an alarm message
will be checked.
When the pulse signal applied after short-circuit, all indoor units within the same series will be
operated.
When the pulse signal applied after short-circuit, all indoor units within the same series will be
stopped.
(When set to short-circuit, the remote control from the indoor unit can not be operated.)
Used for vacuuming the outdoor unit.
Used for installing the snow sensor.
Used for installing the external timer for the silent mode.
SW3
SW2
CN33
When opened, the auto address mode starts.
1-4
2WAY SYSTEM
2WAY SYSTEM
Address Settings
Address Settings
CN73
CN67
SW7
SW4
SW1