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SiAF332111E
Test Operation (4/5/10/12 HP Models)
Part 5 Field Settings and Test Operation
169
Caution
No display on the remote controller
Error in connection/communication among indoor unit remote controllers. Check if there is
any disconnection or loosening of connectors.
For the plumber
For the electrician
Before giving the air conditioner back to the customer after a test operation, please make sure
that the casing is securely in place and the screws are well fastened.
LC
14
Transmission between outdoor unit main PCB and
inverter PCB
Check the connection.
19
Transmission between outdoor unit main PCB and
fan PCB 1
Check the connection.
24
Transmission between outdoor unit main PCB and
fan PCB 2
Check the connection.
P1
01
02
03
Inverter unbalanced power supply voltage
Check if the power supply meets the specifications.
U1
01
Opposite phase power supply phase error
Calibrate phase sequence.
04
Opposite phase power supply phase error
Calibrate phase sequence.
U2
01
Inverter insufficient voltage
Check if the power supply meets the specifications.
02
Inverter power supply phase missing
Check if the power supply meets the specifications.
U3
03
System test operation not yet executed
(Test operation cannot be executed.)
Execute system test operation.
U4
01
Q1/Q2 or indoor-outdoor units wiring error
Check (Q1/Q2) wiring.
03
Q1/Q2 or indoor-outdoor units wiring error
Check (Q1/Q2) wiring.
04
System test operation ends abnormally.
Re-execute the test operation.
U9
01
System mismatch
Mismatched indoor unit models used
(R-410A, R-407C, RA, Hydrobox, etc.).
Defective indoor unit
Check if there are any other defective indoor units
and verify if the indoor unit combination meets
requirements.
UA
03
Defective indoor unit connection or mismatched
models (R-410A, R-407C, RA, Hydrobox, etc.).
Check if there are any other defective indoor units
and verify if the indoor unit combination meets
requirements.
18
Defective indoor unit connection or mismatched
models (R-410A, R-407C, RA, Hydrobox, etc.).
Check if there are any other defective indoor units
and verify if the indoor unit combination meets
requirements.
31
Wrong combination of units (multi-unit system)
Check the compatibility of unit types.
49
Wrong combination of units (multi-unit system)
Check the compatibility of unit types.
UF
01
Defective automatic addressing (inconsistency)
Check if the quantity of connected units is below the
maximum number of units that can be connected
(through monitoring mode) or if initiation is complete.
05
Stop valve closed or defective
(During system test operation)
Open the stop valve.
UH
01
Defective automatic addressing (inconsistency)
Check if the quantity of connected units is below the
maximum number of units that can be connected
(through monitoring mode) or if initiation is complete.
Error code
Description
Solution
Primary
code
Sub code
Summary of Contents for VRV S RXQ4/5ARV1
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ4 5ARV1 RXMQ6ARV1 RXMQ8 10 12ARY1 SiAF332111E...
Page 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Page 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Page 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Page 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...