Haier HDU-28H03/H, HDU-24H03/H, HDU-42H03/H instruction manual Followings are not malfunction

Page 17

MALFUNCTION

The followings are not malfunction

Water flowing sound is heard.

Shuru Shuru

When the air conditioner is started, when the compressor starts or stops during operation or when the air conditioner is stopped, it sometimes sounds "shuru shuru" or "gobo gobo". It is the flowing sound of the refrigerant, and it is not a trouble.

Cracking sound is heard.

This is caused by heat expansion or contraction of plastics.

 

It smells.

Air which blows out from the indoor unit sometimes smells.

 

 

The smell results from residents of tobacco smoke or cosmetics

 

stuck inside of unit.

 

During operation,

When the air conditioner is used at restaurant etc. where dense

white fog comes

edible oil fume is always exists, white fog sometimes blows out

out of indoor unit.

of air outlet during operation.

 

 

In this case consult sales dealer for cleaning the heat exchanger.

It is switched into the FAN mode

To prevent frost from being accumulated on the indoor unit heat

during cooling.

exchanger, it is sometimes automatically switched to the FAN mode

 

but it will soon return to the cooling mode.

 

The air conditioner can not be

Even if the operation switch is turned on, cooling, dehumidifying

restarted soon after it stops.

or heating is not operable for three minutes after the conditioner is

Unit does

stopped. Because the protecting circuit is activated.

Wait for

(During this time air conditioner operates in fan

three

not start

minutes

 

mode.)

 

Air does not blow or the fan

When it is excessively cooled during dehumidifying, the blower

speed can not be changed during

automatically repeats reducing and lowering the fan speed.

 

dehumidifying

 

 

During operation, operation mode

Isn't the AUTO mode selected?

 

has changed over automatically.

In the case of AUTO mode, operation mode is changed automati-

 

cally from cooling to heating or vise-versa according to the room

 

temperature.

 

Water or steam generates from

This results when frost accumulated on the outdoor unit is removed

the outdoor unit during heating.

(during defrosting operation).

 

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Contents Manual Please read this manual carefully before usingTable of Contents Disposal of the old air conditioner It could cause such problems as water leakage Safety PrecationsMake sure to use a fuse of proper electric rating Safety PrecautionsMachine is adaptive in following situation Safety PrecautionApplicable ambient temperature range Air outlet Duct Drainpipe Air inlet Parts and FunctionsHDU-24H03/HHDU-42H03/H HDU-28H03/H Buttons and display of the wire controller Clock set Remote controlOperation Fan speed selection Select temp. settingRecommendations Press Time Set Clock correctly before starting Timer operationSelect your desired Timer mode on or OFF Press Time button Follow the same procedures in Time setting for Timer onSelect Offon Comfortable Sleep Cooling, dehumidifying modeHeating mode Operation Unit fails to start MalfunctionCooling or heating is not sufficient Cooling is not sufficientStopped. Because the protecting circuit is activated Followings are not malfunctionDuring this time air conditioner operates in fan Outdoor unit during heating During defrosting operationPoints to observe Care and MaintenanceWarming Operation Electric work Is the Unit Installed CorrectlyInstallation place Installation Manual for Wire Controller Hint Indoor unit wiringReplace the upper part of wire controller Selection of the place of installation AccessoriesInstallation of outdoor unit InstallationPiping size Refrigerant pipingOutline piping To use vacuum pump ModelWire size Switch Leak Rated capacity a Minimum Electric wiring5mm 30mA 0mm 30mATest run Safety precautions Installation Manual for Indoor UnitChoose installation place Preparation before installation Drain Piping Installation of indoor unitInstallation of air suction and discharging duct Shape Square duct Dimension Air volume Chosen chart of simple ductAir discharging fan Improper example Examples of improper installationExample of the method of choosing capacity number Operation method of fan controllerRefrigerant pipe

HDU-28H03/H, HDU-42H03/H, HDU-24H03/H specifications

Haier has established itself as a leading name in the HVAC sector, and their HDU series, including models HDU-28H03/H, HDU-42H03/H, and HDU-24H03/H, exemplifies the brand's commitment to quality and efficiency. These air conditioning units are ideal for both residential and commercial use, designed to provide optimal comfort without compromising on energy efficiency.

One of the standout features of the HDU series is its advanced inverter technology. This allows the units to adjust their cooling and heating output based on the current demand, ensuring that energy is used efficiently. As a result, users can expect reduced energy bills while enjoying a consistently comfortable indoor climate. The inverter system minimizes temperature fluctuations by maintaining a steady output, enhancing overall comfort.

Another notable aspect of the HDU models is their high energy efficiency ratings, often reaching levels that exceed industry standards. This is largely due to the use of R32 refrigerant, which has a lower global warming potential compared to traditional refrigerants. The incorporation of R32 not only makes these units more environmentally friendly but also helps to improve efficiency, providing effective cooling and heating performance even in extreme weather conditions.

Additionally, the HDU units boast a wide operating temperature range. They are designed to work seamlessly in a variety of climates, maintaining performance in temperatures as low as -15°C for heating and up to 50°C for cooling. This adaptability makes them a versatile choice for different geographic locations.

Quiet operation is another impressive feature of the HDU series. The indoor units are engineered to operate at whisper-quiet levels, making them ideal for bedrooms, offices, or any space where noise could be a concern. This allows users to enjoy a peaceful environment while maintaining their comfort.

The user-friendly interface and smart features of the HDU models further enhance their appeal. Equipped with modern remote controls and optional Wi-Fi connectivity, users can easily manage their air conditioning settings from anywhere, providing convenience and flexibility.

In summary, the Haier HDU-28H03/H, HDU-42H03/H, and HDU-24H03/H models combine advanced inverter technology, high energy efficiency, a wide operating temperature range, and quiet operation to deliver outstanding performance. Their smart features and eco-friendly refrigerant make them a reliable choice for those seeking comfort and efficiency in their HVAC systems.
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