5-22
5
4. Mini VRF System Alarm Codes
Mini VRF SYSTEM
Trouble Diagnosis
1-1
1-4 : Single-phase model
1-2 : 3-phase model
3-1 : Single-phase model
2-1 : 3-phase model
Check for open circuit and the voltage at the breaker.
If a problem is found, fix it and check again.
Yes
No
Turn the power back on and check again.
Is the alarm triggered again?
1-4
2-1
Power wiring N-phase is connected.
Power wiring L2 and N are reverse connected. (3-phase only)
The connector CN-RY on the outdoor CR PC board is
connected properly (locked). (3-phase only)
1-2
1-3
4-1
Yes
No
Correct wiring.
1-3
Yes
No
Correct wiring.
1-4
Yes
No
1 Check
the power
supply &
the wiring
Are the wires (RE1, RE2) from the reactor firmly installed?
3-1
3-2
Correct wiring.
Yes
No
Turn the power back on and check again.
Is the alarm triggered again?
3-2
Replace the outdoor
unit HIC PC board.
4-1
Yes
No
3 Check the
outdoor
unit HIC
PC board
2 Check the
outdoor
unit CR
PC board
There may be a instantaneous blackout failure.
If there is nothing abnormal, see what happens.
4-1
4 Final check
P05 AC Power Supply Trouble
Error Detection Method
Error Diagnosis
Instantaneous blackout
•
Note : The work involved in diagnosing each of the items is extremely dangerous, so turn the power off at the breaker before
performing the tests.
Zero-cross (waveform input of power supply) error
•
DC voltage charge failure
•
1.
2.
Is the voltage on each of the
terminal boards 10%
of the rated voltage?
Correct wiring.
(connector)
3-1
Yes
No
ACXA73-2760* : (U-160PZH2R5)
(Single-phase outdoor unit HIC PC board)
P
U
V
W
NU
RE1
RE2
ACXA73-3104* : (U-160PZH2R8, U-180PZH2R8,
U-200PZH2R8, U-224PZH2R8)
(3-phase outdoor unit HIC PC board)
■
Outdoor Unit Control HIC PCB
P
U
V
W
NU
RE2
RE1
SM830277-00_大洋州向け R32シングル_TD&SM.indb 22
19/02/28 13:37:22
Содержание S-160PE1R5B
Страница 12: ...MEMO Xi SM830277 00_ R32 _TD SM indb 12 19 02 26 9 34 28...
Страница 136: ...MEMO 2 16 SM830277 00_ R32 _TD SM indb 16 19 02 28 13 25 27...
Страница 138: ...3 2 3 3 1 Outdoor Units Electric Wiring Diagram U 160PZH2R5 SM830277 00_ R32 _TD SM indb 2 19 02 12 9 55 27...
Страница 140: ...3 4 3 3 2 Indoor Units Ducted Type S 160PE1R5B Electric Wiring Diagram SM830277 00_ R32 _TD SM indb 4 19 02 12 9 55 28...
Страница 160: ...4 18 4 4 3 Outdoor Unit HIC Board U 160PZH2R5 ACXA73 2760 SM830277 00_ R32 _TD SM indb 18 19 02 21 11 54 24...
Страница 161: ...4 19 4 U 160PZH2R8 U 180PZH2R8 U 200PZH2R8 U 224PZH2R8 ACXA73 3104 SM830277 00_ R32 _TD SM indb 19 19 02 21 11 54 24...
Страница 164: ...MEMO 4 22 SM830277 00_ R32 _TD SM indb 22 19 02 21 11 54 26...
Страница 202: ...MEMO 5 38 SM830277 00_ R32 _TD SM indb 38 19 02 28 13 37 39...
Страница 274: ...201903 SM830277 00_ R32 _TD SM indb 1 19 02 12 9 03 53...