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07

7.2  Fault Symptom: Non Air 

Conditioning Issues 

The following fault symptoms are not caused by the air 

conditioning: 

7.2.1 Fault symptom: System cannot run 

Air conditioner does not start immediately after pressing 

the switch button on the controller. If the operating 

indicator lights up, the system is working normally. In 

order to prevent overloading of the compressor motor, 

restart the air conditioner 12 minutes after the switch 

button is pressed to prevent it from shutting down 

immediately after it is on. The same start-up delay 

occurs after the mode selector is pressed. 

7.2.2  Fault symptom: Fan speed is not 

consistent with the setting 

Even if the fan speed regulation button is pressed, 

the fan speed does not change. During heating, when 

the indoor temperature reaches the set temperature, 

the outdoor unit will shut down, and the indoor unit 

switches to the quiet fan speed mode. This is to prevent 

cold air from blowing directly at the room user. The fan 

speed will not change even when another indoor unit is 

in heating operation, if the button is pressed. 

7.2.3  Fault symptom: Fan direction is not 

consistent with the setting 

The air direction is not consistent with the user 

interface display. The air direction does not swing. 

This is because the unit is controlled by the centralized 

controller. 

7.2.4  Fault symptom: White smoke from 

a certain unit (indoor unit) 

During cooling when the humidity is high. If the 

interior pollution of the indoor unit is severe, the 

indoor temperature distribution will be uneven. Need 

to clean the interior of the indoor unit. Ask the agent 

for detailed information on how to clean the unit. This 

operation must be carried out by qualified maintenance 

personnel. 
Surface immediately after cooling has stopped and 

when the indoor humidity is relatively low. This is due to 

the steam produced by the warm refrigerant gas on its 

return path to the indoor unit. 

7.2.5  Fault symptom: White smoke from 

a certain unit (indoor unit, outdoor 

unit) 

After the defrosting operation, switch the system to the 

heating mode. The moisture produced by the defrosting 

operation will become steam to be discharged out of 

the system.

7.2.6  Fault symptom: Noise from air 

conditioner (indoor unit)

A "zeen" sound is heard the moment the system is 

powered on. This noise is produced by the electronic 

expansion valves inside the indoor unit as they begin 

to work. The sound volume will be reduced in about 1 

minute.
A soft and continuous "shah" sound can be heard 

when the system is in a cooling mode or has stopped 

running. This noise can be heard when the drainage 

pump is running (optional accessory).

A loud creaking "pishi-pishi" sound can be heard once 

the system stops after it has heated up the room. The 

expansion and contraction of plastic parts caused by 

temperature changes will also make this noise.
Once the indoor unit stops, a soft "sah" or "choro-choro" 

sound can be heard. This noise can be heard when 

another indoor unit is still running. Must maintain a small 

amount of refrigerant flow in order to prevent oil and 

refrigerant residues in the system.

7.2.7  Fault symptom: Noise from air 

conditioner (indoor unit, outdoor 

unit)

A soft, continuous hissing sound can be heard when the 

system is in cooling or defrosting operation. This is the 

sound of the refrigerant gas flowing in the indoor and 

outdoor units.
A hissing sound is heard the moment the system starts 

or stops operation or after the defrosting operation has 

been completed. This is the noise produced when the 

refrigerant flow is stopped or changed.

7.2.8  Fault symptom: Noise from air 

conditioner (outdoor unit)

When the tone of the operating noise changes. This 

noise is caused by frequency changes.

7.2.9  Fault symptom: Dust and dirt in the 

unit 

When using the unit for the first time. This is because 

there is dust inside the unit.

7.2.10  Fault symptom: Strange odour from 

unit 

This unit will absorb the odours of rooms, furniture, 

cigarettes and others, and then disperse the odours 

again.
Small animals stray into the unit, which can also cause 

odors.

7.2.11  Fault symptom: ODU fan does not 

run

In the course of operation. Control speed of fan motor to 

optimize the product operations.

7.2.12  Fault symptom: Hot air is felt when 

the indoor unit stops

IDifferent types of indoor units operating in the same 

system. When another unit is running, part of the 

refrigerant will still flow through this unit.

Содержание Amazon IV HR K3F-252 DN4S

Страница 1: ...itioner please read this manual carefully and keep it for future reference The figure shown in this manual is for reference only and may be slightly different from the actual product Amazon IV HR Seri...

Страница 2: ...ry Program 03 6 MAINTENANCE AND REPAIR 6 1 Maintenance after Unit has been Shut Down for a Long Period 03 6 2 Maintenance Before Unit is Shut Down for a Long Period 03 6 3 About the Refrigerant 04 6 4...

Страница 3: ...rate the air conditioner when applying fumigated insecti cide in the room This may cause chemicals to be deposited inside the unit and pose a danger to the health of people allergic to chemicals This...

Страница 4: ...C DB Cooling 15 24 C WB Heaing 15 30 C DB Indoor humidity 80 2 Notes 1 15 C cooling is possible only with the single MS box otherwise the minimum allowable cooling operating temperature is 5 C 2 Conde...

Страница 5: ...e running light is now off and the system stopped running Adjust Refer to the user manual for the controller on how to set the required temperature fan speed and air flow direction 5 3 Using the Dry P...

Страница 6: ...ins fluorinated greenhouse gases as stipulated in the Kyoto Protocol Do not discharge the gas into the atmosphere Refrigerant Type R 410A GWP Value 2088 Based on the applicable law the refrigerant mus...

Страница 7: ...inlets or outlets of the outdoor or indoor units are blocked by any obstacles Remove the obstacles and maintain good ventilation in the room Check if the filter is blocked please refer to the Maintena...

Страница 8: ...peration is set However a test operation is not performed for 30 minutes after power on Displayed on the unit with the error xP9 DC fan module protection Displayed on the unit with the error PL Compre...

Страница 9: ...g operation will become steam to be discharged out of the system 7 2 6 Fault symptom Noise from air conditioner indoor unit A zeen sound is heard the moment the system is powered on This noise is prod...

Страница 10: ...logy to move the units 9 DISPOSAL This unit uses hydrogen fluorocarbons Please contact the agent when you want to dispose this unit Based on the requirements of the law the collection transportation a...

Страница 11: ...16127000003327 V C...

Страница 12: ......

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