Haier HDU-24H03/H, HDU-42H03/H, HDU-28H03/H instruction manual Test run

Page 27

INSTALLATION MANUAL FOR OUTDOOR UNIT

(2)Wiring connection

Make wiring to supply power to the outdoor unit, so that the power for the indoor unit is supplied by *and*terminals.

Outdoor unit

TB1

R

S

T

N

Circuit breaker

 

 

 

 

 

 

 

 

Earth leakage

Indoor

Outdoor

breaker

unit

unit

 

 

 

 

 

 

 

TB1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Circuit breaker

 

Earth leakage

Indoor

breaker

unit

TB2 HIGH VOLTAGE

1

2

3

2

Interconnecting wires

TB

1

2

3

HDU-42H03/H

TB2 HIGH VOLTAGE

1

2

3

1Interconnecting

wires

TB

1

2

3

HDU-24H03/H HDU-28H03/H

WARNING

DO NOT CONNECT THE NEUTRAL WIRE N TO R , S OR T PHASE. INTERCONNECT- ING WIRES MUST BE WIRED WITH SAME SYMBOLS ON THE TERMINALS OF BOTH INDOOR AND OUTDOOR UNIT.INCORRECT WIRING CAUSE EQUIPMENT DAMAGE OR

AFIRE.

(3)Wiring procedure

1)Remove set screws on the side before taking off the front panel toward the direction shown in figure.

2)Connect wires to the terminal block correctly and fix the wires with a wire clamp equipped near by the terminal block.

3)Route the wires in a proper way and penetrate the wires through the opening for electric wiring on the side panel.

6. Test run

Front panel

Opening for electric wiring

CAUTION

THIS UNIT WILL BE STARTED INSTANTLY WITHOUT "ON" OPERATION WHEN ELECTRIC POWER IS SUPPLIED.

BE SURE TO EXECUTE "OFF" OPERATION BEFORE ELECTRIC POWER IS DISCONNECTED FOR SERVICING.

This unit has a function of automatic restart system after recovering power stoppage.

(1)Before starting test run (for all Heat pump models)

Confirm whether the power source breaker (main switch) of the unit has been turned on for over 12 hrs to energize the crankcase heater in advance of operation.

(2)Test run

Run the unit continuously for about 30 minutes, and check the following.

Suction pressure at check joint of service valve for gas pipe.

Discharge pressure at check joint on the compressor discharge pipe.

Temperature difference between return air and supply air for indoor unit.

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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 PrecautionsSafety Precaution Applicable ambient temperature rangeMachine is adaptive in following situation Parts and Functions HDU-24H03/HHDU-42H03/H HDU-28H03/HAir outlet Duct Drainpipe Air inlet Buttons and display of the wire controller Clock set Remote controlOperation Select temp. setting RecommendationsFan speed selection Set Clock correctly before starting Timer operation Select your desired Timer mode on or OFFPress Time Follow the same procedures in Time setting for Timer on Select OffonPress Time button Cooling, dehumidifying mode Heating 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 Is the Unit Installed Correctly Installation placeElectric work Installation Manual for Wire Controller Indoor unit wiring Replace the upper part of wire controllerHint Installation AccessoriesSelection of the place of installation Installation of outdoor unitRefrigerant piping Outline 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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