AirStage AO54FJ, Service Manual

Page: 32 / 169

6-1 Pipe length switch
The outdoor unit model can be selected by setting DIP switch 7-1 on the PCB.
7-1 System type switch 1
(Heat pump / Cooling only)
SW7-1 Type selection
OFF
ON
Heat pump
OUTDOOR UNIT TYPE SELECTION
7-4 Refrigerant type switch
( Factory setting)
( Factory setting)
( Factory setting)
( Factory setting)
Cooling only
REFRIGERANT TYPE
R410A
SW7-4
OFF
PIPE LENGTH
Standard
SW 6-1
(6) SW6 setting
(7) SW7 setting (Never change at the site)
SW setting can provide the operation to supplement the loss created by the pipe length.
Depending on the frost condition of outdoor unit's heat exchanger under different surrounding
environment, the defrost start and finish temperature can be changed.
OFF
ON
SW 6-2
OFF
ON
Pipe length L
6-2 Dip SW 6-3 & 6-4 Defrost temperature shift switch
( Factory setting)
Heat pump type
Cooling only type
REFRIGERANT TYPE SWITCH
ON
Forbidden
7-3 Model code switch
7-2 DIP SW7-2 setting forbidden
MODEL CODE
54
SW7-3
OFF
MODEL CODE SWITCH
ON
Forbidden
SW7 has been set up at the factory.
There is no need to set it up at the installation.
Recommended Range of L (m)
7.5 < L 50
<=
50 < L 70
<=
02-18
ON
ON
OFF
OFF
SW 6-3 SW 6-4
ON
OFF
OFF
ON
( Factory setting)
DEFROST
START
DEFROST
FINISH
-10
-7
-15
-10 10
10
20
15
OFF SW7-2