Symptom-based Troubleshooting
SiUS34-801A_b
320
Troubleshooting
<Indoor unit>
Faint sounds are continuously
produced while in cooling
operation or after stopping the
operation.
These sounds are produced from
the drain discharge device in
operation.
Normal operation.
<Indoor unit>
"Creaking" sounds are
produced while in heating
operation or after stopping the
operation.
These sounds are produced from
resin parts expanding and
contracting with temperature
changes.
Normal operation.
<Indoor unit>
Sounds like "trickling" are
produced from indoor units in
the stopped state.
With VRV systems, these sounds
are produced when other indoor
units are in operation. The reason is
that the system runs in order to
prevent oil or refrigerant from
dwelling.
Normal operation.
<Outdoor unit>
Pitch of operating sounds
changes.
The reason is that the compressor
changes the operating frequency.
Normal operation.
12 Dust emits from
the system.
Dust comes out from the
system when it restarts after
the stop for an extended
period of time.
Accumulated dust deposits are
emitted from the system.
Normal operation.
13 Odors emit from
the system.
In operation
Odors in a room are absorbed into
indoor unit and then blown out.
The inside of the indoor unit should
be cleaned.
14 Outdoor unit fan
does not rotate.
In operation
Fan revolutions are controlled for
optimum performance.
Normal operation.
15 LCD display [
88
]
appears on the
remote
controller.
Immediately after turning ON
the power supply
System is checking if remote
controller is normal.
Normal operation.
This code is displayed for one
minute maximum.
16 The outdoor unit
compressor or
the outdoor unit
fan does not
stop.
After stopping operation
It continues to prevent oil or
refrigerant from accumulating.
Normal operation.
It stops after a lapse of
approximately 5 to 10 minutes.
17 The outdoor unit
gets hot.
While stopping operation
The reason is that the compressor
is warmed up to provide smooth
startup of the system.
Normal operation.
18 Hot air emits
from the system
even though it
stops.
Hot air is felt while the system
stops.
With VRV systems, a small quantity
of refrigerant is fed to indoor units in
the stopped state when other indoor
units are in operation.
Normal operation.
19 The system does
not cool air well.
The system is in dry
operation.
Dry operation does not reduce
room temperature.
Change the system to cooling
operation.
Symptom
Probable Cause
Countermeasure
Содержание RXYQ96PYDN
Страница 15: ...SiUS34 801A_b xiv...
Страница 23: ...Model Selection SiUS34 801A_b 8 General Information...
Страница 133: ...Field Settings SiUS34 801A_b 118 VRVIII R 410A Heat Pump 60Hz...
Страница 254: ...SiUS34 801A_b Test Operation VRVIII R 410A Heat Recovery 60Hz 239 R 410A Label R 410A Label...
Страница 329: ...Field Setting SiUS34 801A_b 314 Indoor Unit...
Страница 340: ...SiUS34 801A_b Troubleshooting by Remote Controller Troubleshooting 325...
Страница 489: ...Piping Diagrams SiUS34 801A_b 474 Appendix 1 Piping Diagrams 1 1 Outdoor Unit Heat Pump 460V RXYQ72 96 120PYDN 3D058636A...
Страница 490: ...SiUS34 801A_b Piping Diagrams Appendix 475 Heat Pump 230V RXYQ72 96 120PTJU 3D058636A...
Страница 491: ...Piping Diagrams SiUS34 801A_b 476 Appendix Heat Pump 230V RXYQ144PTJU 3D058640...
Страница 492: ...SiUS34 801A_b Piping Diagrams Appendix 477 Heat Recovery 460V REYQ72 96 120PYDN 3D058639A...
Страница 493: ...Piping Diagrams SiUS34 801A_b 478 Appendix Heat Recovery 460V REMQ72PYDN 3D058637A...
Страница 494: ...SiUS34 801A_b Piping Diagrams Appendix 479 Heat Recovery 460V REMQ96 120PYDN 3D058638A...
Страница 495: ...Piping Diagrams SiUS34 801A_b 480 Appendix Heat Recovery 230V REYQ72 96 120PTJU 3D058639A...
Страница 496: ...SiUS34 801A_b Piping Diagrams Appendix 481 Heat Recovery 230V REYQ144PTJU 3D058640...
Страница 497: ...Piping Diagrams SiUS34 801A_b 482 Appendix Heat Recovery 230V REMQ72PTJU 3D058637A...
Страница 498: ...SiUS34 801A_b Piping Diagrams Appendix 483 Heat Recovery 230V REMQ96 120PTJU 3D058638A...
Страница 501: ...Piping Diagrams SiUS34 801A_b 486 Appendix 1 3 BS Unit 4D057985A...
Страница 537: ...Piping Installation Point SiUS34 801A_b 522 Appendix...
Страница 543: ...Pressure Sensor SiUS34 801A_b 528 Appendix...
Страница 559: ...Precautions for New Refrigerant R 410A SiUS34 801A_b 544 Precautions for New Refrigerant R 410A...
Страница 563: ...SiUS34 801A_b iv Index...