Haier HDU-42H03/H, HDU-24H03/H, HDU-28H03/H Drain Piping, Installation of indoor unit

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INSTALLATION MANUAL FOR INDOOR UNIT

4. Installation of indoor unit

M10 nut

Fix the indoor unit to the hanger bolts.

If required, it is possible to suspend the unit to the beam, etc.

Directly by use of the bolts without using the hanger bolts.

Main unit

Note

Hanging bolt M10 washer

M10 spring washer

When the dimensions of main unit and ceiling holes does not match, it can be adjusted with the slot holes of hanging bracket.

Adjusting to the levelness

(a)Adjust the out-of levelness using a level or by the following method.

Make adjustment so that the relation between the lower surface of the unit proper and water level in the hose becomes as given below.

Piping side Supply water

Water level

0~5 mm

PVC hose

 

(0~0.2")

Bring the piping side slightly lower.

(b)Unless the adjustment to the levelness is made properly, malfunctioning or failure of the float switch may occur.

5.Drain Piping

(a)Drain piping should always be in a downhill grade (1/50~1/100) and avoid riding across an elevation or making traps.

Good piping

Suspension

1.5m ~ 2m

bolts

Heat

A downhill grade

insulation

of 1/100 or more

Inproper piping

 

 

Avoid riding across an elevation

Air vent

Keep free from traps

 

Do not pipe under water

(b)When connecting the drain pipe to unit, pay suffcient attention not to apply excess force to the piping on the unit side. Also, fix the piping at a point as close as possible to the unit.

(c)For drain pipe, use hard PVC general purpose pipe VP-25(I.D.1") which can be purchased locally. When connecting, insert a PVC pipe end securely into the drain socket before tightening securely using the attached drain hose and clamp. Adhesive must not be used connection of the drain socket and drain hose (accessory).

 

Stage

 

Drain socket

difference

Drain hose

part

 

Drain socket

 

VP 25 joint

 

 

 

Pipe cover(large)

(field purchased)

 

[for insulation]

 

Main unit

(accessory)

 

 

 

 

 

Drain hose

VP 25

 

(field purchased)

 

Clamp (accessory)

 

(accessory)

Adhesion

Pipe cover

 

 

 

Pipe cover(small)

 

[for insulation]

 

 

(field purchased)

 

[for insulation]

 

 

 

 

 

(accessory)

 

 

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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 PrecautionsApplicable ambient temperature range Safety PrecautionMachine is adaptive in following situation HDU-24H03/HHDU-42H03/H HDU-28H03/H Parts and FunctionsAir outlet Duct Drainpipe Air inlet Buttons and display of the wire controller Clock set Remote controlOperation Recommendations Select temp. settingFan speed selection Select your desired Timer mode on or OFF Set Clock correctly before starting Timer operationPress Time Select Offon Follow the same procedures in Time setting for Timer onPress Time button Heating mode Cooling, dehumidifying modeComfortable Sleep Operation Cooling is not sufficient MalfunctionUnit fails to start Cooling or heating is not sufficientOutdoor unit during heating During defrosting operation Followings are not malfunctionStopped. Because the protecting circuit is activated During this time air conditioner operates in fanPoints to observe Care and MaintenanceWarming Operation Installation place Is the Unit Installed CorrectlyElectric work Installation Manual for Wire Controller Replace the upper part of wire controller Indoor unit wiringHint Installation AccessoriesSelection of the place of installation Installation of outdoor unitOutline piping Refrigerant pipingPiping size To use vacuum pump Model0mm 30mA Electric wiringWire size Switch Leak Rated capacity a Minimum 5mm 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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