5-48
5
L18 4-way Valve Operation Failure
Error Detection Method
Error Diagnosis
It is judged an error when during heating operation (Comp. ON), the highest detected temperature at an outdoor unit
heat exchanger (C1) was 20°C or more above the outdoor air temperature (Air Temp.) continuously for 5 minutes or
longer.
1.
2.
Is the connector wired from the 4-WAY valve plugged in the CN-20S
connector on the HIC PC board properly?
1-1
1-2
Correct connector
Yes
No
2
Has the 4-way valve wiring become opened?
1-2
Is the wire from the coil for controlling the 4-way valve firmly
connected to the 4-way valve?
1-3
4-way valve
1 PC board
wiring
Correct wiring
1-3
Yes
No
2-1
Correct connector
Yes
No
During heating mode (Comp. ON), insert and remove the connector
wired from the 4-WAY valve into or from CN-20S connector on the
HIC PC board. At the same time, does the ON & OFF sounds occur
from the 4-way valve?
2-1
2-2
Replace HIC
PC board
Yes
No
During heating mode (Comp. ON), does the alarm code L18
reproduce for 5 minutes or longer after insertion and removal of
CN-20S connector wired from the 4-way valve connector on the
HIC PC board?
2-2
The parts inside the 4-way valve might have fixed at the cooling side.
Replace the 4-way valve
2-3
2-3
See what happens
Yes
No
SM830211-07̲PAC-i.indb 48
SM830211-07̲PAC-i.indb 48
2013/09/07 10:42:30
2013/09/07 10:42:30
Содержание U-100PEY1E5
Страница 536: ... MEMO 1 526 ...
Страница 540: ... MEMO 2 4 ...
Страница 543: ...3 3 3 3 1 Indoor Units 4 Way Cassette 60 60 Type S 36PY1E5 S 45PY1E5 S 50PY1E5 Electric Wiring Diagram 䡵 ...
Страница 547: ...3 7 3 3 1 Indoor Units Wall Mounted Type S 36PK1E5 S 45PK1E5 S 50PK1E5 S 60PK1E5 S 71PK1E5 Electric Wiring Diagram 䡵 ...
Страница 549: ...3 9 3 3 1 Indoor Units Ducted Type S 36PN1E5 S 45PN1E5 S 50PN1E5 Electric Wiring Diagram ...
Страница 550: ...3 10 3 3 1 Indoor Units Ducted Type S 60PN1E5 S 71PN1E5 S 100PN1E5 S 125PN1E5 S 140PN1E5 Electric Wiring Diagram ...
Страница 551: ...3 11 3 3 2 Outdoor Units Single phase U 50PE1E5 ...
Страница 552: ...3 12 3 3 2 Outdoor Units Single phase U 50PE1E5 ...
Страница 553: ...3 13 3 3 2 Outdoor Units Single phase U 60PE1E5 U 71PE1E5 䡵 ...
Страница 554: ...3 14 3 3 2 Outdoor Units Single phase U 100PE1E5 U 125PE1E5 U 140PE1E5 䡵 ...
Страница 555: ...3 15 3 3 2 Outdoor Units Single phase U 60PEY1E5 U 71PEY1E5 ...
Страница 556: ...3 16 3 3 2 Outdoor Units Single phase U 60PEY1E5 U 71PEY1E5 ...
Страница 558: ...3 18 3 3 2 Outdoor Units 3 phase U 71PE1E8 ...
Страница 559: ...3 19 3 3 2 Outdoor Units 3 phase U 100PEY1E8 U 125PEY1E8 ...
Страница 560: ...3 20 3 3 2 Outdoor Units 3 phase U 100PE1E8 U 125PE1E8 U 140PE1E8 U 140PEY1E8 ...
Страница 594: ...4 34 4 HIC PCB A746895 U 60PE1E5 U 71PE1E5 CN VDC U P V W N CN VDC 4WAY Valve CN 20S ...
Страница 595: ...4 35 4 HIC PCB continued A746846 U 100PE1E5 CN VDC U V W CN VDC 4WAY Valve CN 20S P NU ...
Страница 596: ...4 36 4 HIC PCB continued A746847 U 125PE1E5 U 140PE1E5 CN VDC U V W CN VDC 4WAY Valve CN 20S P NU ...
Страница 597: ...4 37 4 HIC PCB A746846 U 100PEY1E5 CN VDC U V W CN VDC 4WAY Valve CN 20S P NU ...
Страница 598: ...4 38 4 HIC PCB continued A746847 U 125PEY1E5 CN VDC U V W CN VDC 4WAY Valve CN 20S P NU ...
Страница 602: ...4 42 4 HIC PCB A747248 U 100PEY1E8 U 125PEY1E8 CN VDC U V W CN VDC 4WAY Valve CN 20S P NU ...
Страница 738: ... MEMO 8 34 ...
Страница 739: ...201309 ...