Specifications

264
Inverter frequency monitor
LED3
LED4
LED5
Operation
frequency
0~35 35~45 45~55 55~65 65~75 75~85 85~95 95~100
Notes (1) mark: Flashing
mark: Stays OFF
(2) Relation between LED3~5
and operation frequency
• LED3......40Hz
• LED4......20Hz
• LED5......10Hz
• Operation frequency =
Frequency indicated by
LED3~5 + 25
• Replacement procedure of indoor unit microcomputer printed circuit board
Microcomputer printed circuit board can replaced with following procedure.
1) Confirm the parts numbers. (Refer to the following parts layout drawing for the location of parts number.)
FDCP224, 280HKXRE2A
224, 280HKXRE2V
Parts No.
PCB505A012L
Model
YES
YES
YES
NO
NO
NO
Power supply
checked between R~N or
terminal block
Is there
AC 17V checked
between CNA
2 (blue) ~ (blue)
and AC 8V between (red)
~ (red) of outdoor unit
transfomer?
Power supply
reset
Defective outdoor
unit PCB
Unit is normal
Is it
Normalized?
• Blown fuse (3.15A) →Replacement
•Defective transformer→
Replcement
• Broken power supply wire in
the unit Repair
Is the pairing of
Indoor/outdoor units OK?
Change of unit num-
ber setting
NO
(1)
YES
Is the connection
of network signal
wires good?
NO
Power not supplied.
Power supply wiring
error→Repair.
Note (1) NO outdoor unit corre-
sponding to the indoor
unit.
Repair the door con-
nection, broken wire of
network signal wires.
Indoor unit
Red LED
Green LED
2 time flash
Keeps flashing
Outdoor unit
Red LED
Green LED
Stays OFF
Stays OFF
Outdoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
1
Error display:
[Error on the outdoor unit signal line]
(Detected during operation only)
(iii) Check procedure depending on indication lamps (For the outdoor unit)