Daikin RXYQ96PYDN, Руководство по обслуживанию

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SiUS34-801A_b Symptom-based Troubleshooting
Troubleshooting 319
6 COOL-HEAT
selection is
disabled. The remote controller displays
UNDER CENTRALIZED
CONTROL
.
This remote controller has no option
to select cooling operation. Use a remote controller with option
to select cooling operation.
The remote controller displays
UNDER CENTRALIZED
CONTROL
, and the COOL-
HEAT selection remote
controller is provided.
COOL-HEAT selection is made
using the COOL-HEAT selection
remote controller. Use the COOL-HEAT selection
remote controller to select cool or
heat.
7 System
conducts fan
operation but not
cooling or
heating
operation. This symptom occurs
immediately after turning ON
the power supply. The system is in preparation mode
of operation. Wait for a period of approximately
10 minutes.
8 Airflow rate is not
reproduced
according to the
setting. Even pressing the AIRFLOW
RATE SET button makes no
changes in the airflow rate. In heating operation, when the room
temperature reaches the setpoint
temperature, the outdoor unit will
stop while the indoor unit is brought
to fan LL operation so that cold air is
prevented.If fan operation mode is
selected when other indoor unit is in
heating operation, the system
reverts to fan LL operation.
The fan LL operation is also
enabled while in oil return mode in
cooling operation. Normal operation.
9 Airflow direction
is not
reproduced
according to the
setting. The airflow direction is not
corresponding to that
displayed on the remote
controller.
The louver does not swing. Automatic control Normal operation.
10 A white mist
emits from the
system.
<Indoor unit>
In cooling operation, the
ambient humidity is high.
(Indoor unit is installed in a
place with a lot of oil or dust.) Uneven temperature distribution
due to heavy stain of the inside of
the indoor unit Clean the inside of the indoor unit.
<Indoor unit>
Immediately after cooling
operation stops, the ambient
temperature and humidity are
low. Hot gas (refrigerant) flown in the
indoor unit results to be vapor from
the unit. Normal operation.
<Indoor and outdoor units>
After the completion of
defrosting operation, the
system is switched to heating
operation. Defrosted moisture turns to be
vapor and comes out from the units. Normal operation.
11 System
produces
sounds. <Indoor unit>
Immediately after turning ON
the power supply, indoor unit
produces "ringing" sounds. These are operating sounds of the
electronic expansion valve of the
indoor unit. Normal operation.
This sound becomes low after a
lapse of approximately one minute.
<Indoor and outdoor units>
"Hissing" sounds are
continuously produced while
in cooling or defrosting
operation. These sounds are produced from
gas (refrigerant) flowing
respectively through the indoor and
outdoor units. Normal operation.
<Indoor and outdoor units>
"Hissing" sounds are
produced immediately after
the startup or stop of the
system, or the startup or stop
of defrosting operation. These sounds are produced when
the gas (refrigerant) stops or
changes flow. Normal operation.
Symptom Probable Cause Countermeasure