Kaysun KAYF-22 DN3.0, Owner'S Manual

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Owner’s manual
13
Maintenance after a long period of non-use.
(e.g., at the beginning of the season)
Check and remove everything that might be blocking the
inlet and outlet vents of indoor units and outdoor units.
Clean air filters and casings of indoor units.
Refer to "Cleaning the air filter" section for details on how
to proceed and make sure you reinstall the cleaned air
filters in the same position.
Turn on the power at least 12 hours before you want to use
the unit to ensure it works properly. As soon as the power is
turned on, the remote controller displays appear.
Digital scroll central air conditioning
auxiliary heating equipment
In winter, purchase the indoor unit with auxiliary heating to
enlarge the capacity.
When turning to the heat mode the air conditioner with
auxiliary heating will run at the set term.
Do not install the 4-way cassette type and duct/ceiling type
(with auxiliary heating).
6. POTENTIAL PROBLEMS
Symptom 1: The system does not work
Symptom 3: White mist is expelled from the unit
Symptom 3.1: Indoor unit
When humidity is high during the cooling operation. If the interior
of the indoor unit is extremely contaminated, the temperature
distribution inside a room becomes uneven. It is necessary to
clean the interior of the indoor unit. Ask your dealer for details on
cleaning the unit, because a technician is required.
Symptom 3.2: Indoor unit, outdoor unit
When the system is changed over to the heating operation after
defrost operation. Moisture generated by defrost becomes steam
and is exhausted.
Symptom 4: The air conditioner is noisy in
cooling mode
Symptom 4.1: Indoor unit
A continuous sound is heard when the system is in cooling mode
or has stopped.
The drain pump (optional accessory) makes this sound.
A squeaking sound is heard when the system stops after heating
operation.
The expansion and contraction of plastic parts caused by
temperature change make this noise.
Symptom 4.2: Indoor unit, outdoor unit
The air conditioner does not start immediately after pressing the
ON/OFF button on the remote controller.
If the operation lamp lights, the system is in normal condition. To
prevent the compressor motor from overloading, the air
conditioner starts three minutes after it is turned on.
Heating mode is running when the following lights are on:
operation and the "PRE-DEF indicator (cooling and heating type)
or the fan only indicator (cooling only type)". When it starts but
the compressor does not, the indoor unit activates protective
measures because of the outlet temperature.
Symptom 2: Running fan mode during cooling
mode
To prevent the indoor evaporator frosting, the system will
change into fan mode automatically before resuming cooling
mode.
When the room temperature drops to the set temperature, the
compressor goes off and the indoor unit changes to fan mode.
When the temperature increases, the compressor starts again.
It is same as in heating mode.
A continuous low hissing sound is heard when the system is in
operation.
This is the sound of refrigerant gas flowing through both indoor
and outdoor units.
A hissing sound which is heard at the start or immediately after
stopping or defrosting.
This is the noise of refrigerant caused by a flow stop or flow
change.
Symptom 4.3: Outdoor unit
The running noise may change due to a change in frequency.
Symptom 5: Dust comes out of the unit
When the unit is used for the first time in a long time.
This is because dust has gotten into the unit.
Symptom 6: The unit gives off a strange odor
The unit can absorb the smell of rooms, furniture, and cigarette
smoke, and then emit it.
Symptom 7: The outdoor unit fan does not
spin.
During operation. The speed of the fan is controlled to optimize
how the product runs.