Specifications
78
● Outdoor switch for a new freon function table
Switch
Signal
SW1
SW2
1
2
No.
Function Effective timing
Action by the switch operation
Compulsory defrosting w1 Start Normal Heat compressor operating
~
3
6
~
1
6
Abnormal history clear
Refrigerant address setting When power supply ON
Self diagnosis off or operating
Clear Normal off or operating
SW4 1
2
Trial run ON/OFF ON OFF
OFF
Trial run mode setting Heat Cool
SW5 1
2
Fan 100% fix 100% fix Normal
Outdoor LEV opening fix w2 Fix Normal
3
4
No function No function No function
No function No function No function
off or operating
off or operating
–
–
ON OFF
123
0123
456
ON
123456
ON
123456
ON
123456
ON
123
4567
456
ON
123456
ON
123456
ON
123456
ON
123
891011
456
ON
123456
ON
123456
ON
123456
ON
123
12 13 14 15
456
ON
123456
ON
123456
ON
123456
ON
Refer to the outdoor unit
operation monitor function
on page 82.
Refer to the outdoor unit
operation monitor function
on page 82.
w1 Compulsory defrosting should be done as follows.
1Change to ON (coil thermistor indication) the DIP SW2-1 in the outdoor controller board.
2Change the DIP SW1-1 in the outdoor controller board OFF➔ ON (compulsory defrosting start).
According to the 1 and 2 operation,
• Heat mode setting • Compressor operating • The defrosting starts when the piping temperature is 8˚C and below.
• When the stated condition is satisfied, the defrosting operation will be completed.
w2 Ignore the change of LEV opening by change of subcooling, the opening is fixed on the position of DIP SW 5-2.
When air conditioner is overloaded for some reasons, LEV opening varies in accordance with overload condition.
(Normal LEV control system changes the opening regularly so that the degree of subcooling will remain constant.
Fixed opening is different between cooling operation and heating operation. Refer to page 71 to 74 for further details.)
9-2. Outdoor unit
9-2-1. Standard control board & Service control board
PUH-P1.6, P2, P2.5, P3VGA PUH-P1.6, P2, P2.5, P3, P4, P5, P6YGA
PU-P1.6, P2, P2.5, P3VGA PU-P3, P4, P5, P6YGA
OCT03-E-3.qxp 04.3.26 1:50 PM Page 78