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When service panels are removed, live parts can easily

be touched by accident, Never leave the unit unattended

during installation or servicing when the service panel is

removed.

Do not touch the refrigerant piping, water piping or internal

parts during and immediately after operation. The piping

and internal parts may be hot or cold depending on the

working condition of the unit.

Your hand may suffer burns or frostbite if you touch the

piping or internal parts. To avoid injury, give the piping

and internal parts time to return to normal temperature

or, if you must touch them, be sure to wear protective

gloves.

Ask your dealer or qualified personnel to carry out

installation work. Do not install the machine by yourself.

Improper installation may result in water leakage, electric

shocks or fire.

Perform installation work in accordance with this installation

manual.

Improper installation may lead to water leakage, electric

shocks or fire.

The equipment is not intended for use in a potentially

explosive atmosphere.

For 

1UH series

 units only.

For year round cooling applications with low indoor humidity

conditions, such as Electronic Data Processing rooms,

contacet yout dealer or see the engineering databook or

the service manual.

Consult your local dealer regarding what to do in case

of refrigerant leakage. When the unit is to be installed in

a small room, it is necessary to take proper measures so

that the amount of any leaked refrigerant does not exceed

the concentration limit in the event of a leakage. Otherwise,

this may lead to an accident due to oxygen depletion.

Be sure to use only the specified accessories and parts

for installation work.

Failure to use the specified parts may result in water

leakage, electric shocks, fire, or the unit falling.

Install the unit on a foundation that can withstand its

weight.

Insufficient strength may result in the fall of equipment

and causing injury.

Carry out the specified installation work in consideration

of strong winds, typhoons, or earthquakes.

Improper installation work may result in accidents due to

fall of equipment.

Make sure that all electrical work is carried out by qualified

personnel according to the applicable legislation and this

installation manual, using a separate circuit.

Insufficient capacity of the power supply circuit or improper

electrical capacity of the power supply circuit or improper

electrical construction may lead to electric shocks or fire.

Make sure that all wiring is secure, using the specified

wires and ensuring that external forces do not act on the

terminal connections or wires.

Incomplete connection or fixing may cause a fire.

When wiring between the indoor and outdoor units, and

wiring the power supply, form the wires so that the

fronstside panel can be securely fastened.

If the frontside panel is not in place, overheating of the

terminals, electric shocks or a fire may be caused.

If refrigerant gas leaks during installation work, ventilate

the area immediately.

Toxic gas may be produced if refrigerant gas comes into

contactwith fire.

After completing the installation work, check to make

sure that there is no leakage of refrigerant gas.

Toxic gas may be produced if refrigerant gas leaks into

the room and comes into contact with a source of fire,

such as a fan heater, stove or cooker.

When planning to relocate former installed units, you

must first recover the refrigerant after the pump down

operation.

Never directly touch any accidental leaking refrigerant.

This could result in severe wounds caused by frostbite.

Be sure to install an earth leakage circuit breaker in

accordance with applicable legislation. Failure to do so

may cause electrical shock and fire.

Earth the unit.

Earthing resistance should be according to applicable

legislation.

Do not connect the earth wire to gas or water pipes,

lightning conductor or telephone earth wire.

Incomplete earthing may cause electric shocks.

Gas pipe.

Lgnition or explosion may occur if the gas leaks.

Water pipe.

Hard vinyl tubes are not effective earths.

Lightning conductor or telephone earth wire.

Electric potential may rise abnormally if struck by a

lightning bolt.

Install drain piping according to this installation manual

to ensure good drainage, and insulate the pipe to prevent

condensation.

Improper drain piping may cause water leakage, and

make the fumitures get wet.

Install the indoor and outdoor units, power wire and

connecting wire at least 1 meter away from televisions

or radios to prevent image interference or noise.

(Depending on the radio waves, a distance of 1 meter

may not be sufficient to eliminate the noise.)

Do not rinse the outdoor unit, This may cause electric

shocks or fire.

Do not install the unit in places such as the following:

Where there is mist of mineral oil, oil spray or vapour

for example a kitchen.

Plastic parts may deteriorate, and cause them to fall

out or water to leak.

Where corrosive gas, such as sulphurous acid gas,

is produced.

Corrosion of copper pipes or soldered parts may cause

the refrigerant to leak.

DANGER: DO NOT TOUCH PIPING AND INTERNAL

PARTS

Warning:

Caution:

Summary of Contents for 1UH071N1ERG

Page 1: ...14 15 15 17 Contents English Definitions Safety considerations Before installation Selecting installation site Precautions on installation Refrigerant pipe size and allowable pipe length Refrigerant piping Leak test andvacuum drying Charging refrigerant Pump down operation Electrical wiring work Test operation This product must only be installed or serviced by qualified personnel Please read this ...

Page 2: ... product see unit name plate C additional refrigerant amount charged in the field D total refrigerant charge E outdoor unit F refrigerant cylinder and manifold for charging IMPORTANT INFORMATION REGA RDING THE REFRIGERANT USED Haier Industrial Park Qianwangang Road Eco Tech Development Zone Qingdao 266555 Shandong P R C A B C D kg kg kg R410A WARNING If the supply cord is damaged it must be replac...

Page 3: ...hat those voltages are 50V DC or less 1 Definitions 2 Safety considerations 1 1 Meaning of warnings and symbols Warnings in this manual are classified according to their severity and probability of occurrence DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially hazardous situation which if not avoided could r...

Page 4: ...ire Make sure that all wiring is secure using the specified wires and ensuring that external forces do not act on the terminal connections or wires Incomplete connection or fixing may cause a fire When wiring between the indoor and outdoor units and wiring the power supply form the wires so that the fronstside panel can be securely fastened If the frontside panel is not in place overheating of the...

Page 5: ... mixed into the system Tight Read 9 Precautions on refrigerant piping on page 10 carefully and follow these procedures correctly Since R410Ais a mixed refrigerant the required additional refrigerant must be charged in its liquid state If the refrigerant is in state of gas its composition changes and the system will not work properly The connected indoor units must be indoor units designed exclusiv...

Page 6: ...t causes short circuit suction of discharge air and this may have the following consequences Deterioration of the operational capacity Frequent frost acceleration in heating operation Disruption of operation due to rise of high pressure When a strong wind blows continuously on the face of the unit the fan can start rotating very fast until it breaks Refer to the figures for installation of this un...

Page 7: ...g pitch1 B leg pitch2 C Front grill air outlet side D Drain hole E Bottom frame F Knock out hole for piping line C D E F 349 174 A 600 174 80 27 37 99 276 367 70 90 450 B 405 410 2 1 5 4 2 6 Fix the outdoor unit to the foundation bolts using nuts with resin washers 1 as shown in the figure Height of barriers is below that of outdoor unit Back and side Above 150 Above 300 Above 200 Front and back A...

Page 8: ...ndard Make sure the drain works properly In regions where buildups of snow can be expected the accumulation and freezing of snow in the space between the heat exchanger and external plate may lower operating efficiency After punching the knock out hole the application of repair type paint on the surface around the edge sections is recommended to prevent rust 5 3 Drain pipe disposal Piping an other...

Page 9: ... ones for HFC type refrigerant may be used Vacuum Pump Vacuum drying May be used if a reverse flow check adaptor is attached Refrigerant Recovery Equipment Recovery of refrigerant May be used if designed for use with R410A Flare Tool Flare machining of piping Chages have been made in the flare machining dimension Refer to the next page Tools Materials Use Notes Vacuum Pump with a Check Valve Vacuu...

Page 10: ...tightness If a clutch type flare tool is used to machine flares on units that use R410A make the protruding part of the pipe between 1 0 and 1 5mm Copper pipe gauge for adjusting the length of pipe protrusion is useful Size mm Radial Thickness mm Size inch Type Type O pipes Type 1 2H or Hpipes 6 2 Piping Materials Types of Copper Pipes Reference Using this table as a reference choose pipes that me...

Page 11: ...sting pipes must be cleaned or replaced after removing the air conditioning units to be replaced 3 Prepare the flare connections for higher pressure See paragraph 6 2 The stem cap is sealed where indicated by the arrow Take care not to damage it After handling the stop valve make sure tighten the stem cap securely For the tightening torque refer to the table below Check for refrigerant leaks after...

Page 12: ...sing a 6mm drill 4x After knocking out the knock out hole it is recommended to apply repair paint to the edge and the surrounding end surfaces to prevent rusting When passing electrical wiring through the knock out holes remove any burrs from the know out holes and wrap the wiring with protective tape to prevent damage If there is any possibility that small animals enter the system through the kno...

Page 13: ...rants Use a vacuum pump to evacuate the installation No additional refrigerant is provided for air purging Make sure that the gas stop valve and liquid stop valve are firmly closed before performing the leak test or vacuum drying NOTICE The leak test must satisfy specification EN378 2 1 Vacuum leak test 1 1 Evacuate the system from the liquid and gas piping to 100 7 kPa 5 Torr 1 2 Once reached tur...

Page 14: ...ts indicated on the figures below opened The location is depending on mode type Fill using a cylinder with a siphon attached Charge the liquid refrigerant with the cylinder in up side down position Fill using a cylinder with a siphon attached Charge the liquid refrigerant with the cylinder in upright position This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not v...

Page 15: ... 2 Push the BS4 pumping down operation button on the PC board of the outdoor unit 8 seconds Never leave the outdoor unit unattended with oopened front panel when power supply is on In case the stop valve on the liquid side is not securely closed during compressor operation during compressor operation pumping down operation cannot be executed Compressor and outdoor fan will start operation automati...

Page 16: ...e side Secure the electrical wiring with cable ties as shown in the figure in 11 2 for single split or 12 3 for maxi split Make sure no external pressure is applied to the terminal connectors When installing the earth leakage circuit breaker make sure that it is compatible with the inverter resistant to high frequency electrical noise to avoid unnecessary opening of the earth leakage circuit break...

Page 17: ... units connected in series correct Are any of the wiring attachment screws loose Is the insulation resistance at leaset 1 Use a 500V mege tester when measuring insulation Do not use a mega tester for low voltage circuits Extra refrigerant Is the size of the piping appropriate Is the insulation material for the piping attached securely Are both the liquid and gas pipes insulated Are the stop valves...

Page 18: ...l block Outdoor unit S R N T N L 1 2 3 1 2 3 1 2 3 1 2 3 Note 1 The master is the indoor unit which connect to a wired controller others are slaves please purchase wired controller separately for MAXI system 2 For one MAXI split system there is only one master 3 For the MAXI system with 2 to 3 indoor units the wiring method is the same with the diagram on the left except for the indor units quanti...

Page 19: ...20 45 P 30 L 20 45 P 30 L 20 45 P 30 L 20 45 P 30 L 20 45 P 30 L P 20 30 L P 20 30 Charge g P m P 0 P L1 L2 P L1 L2 L3 P L1 L2 L3 L4 __ L P 20 45 L P 20 45 __ L P 20 30 L P 20 30 P 20 30 L L P 20 45 Single Split Twin Triple Quadruple 1UH105 1UH125 1UH140 Example 2 1UH125 Remark a L is the main pipe length of liquid pipe P is the sum length of branch liquid pipes b The piping length L P means the s...

Page 20: ...20 60 80 80 60 80 80 80 80 When installing MAXI SPLIT Series 1UH105N1ERG 1UH125P1ERG 1UH125P1ERK 1UH140P1ERG 1UH140P1ERK Please refer to the table below concerning the pipe lengths heights and sizes ...

Page 21: ...draining pipes follow the instructions in the manual and make sure that they properly drain water so as to avoid dew condensation If not installed properly they may cause water leaks and damage the furnishings Do not spray water on the air conditioners or immerse the air conditioners in water Water on the unit presents a risk of electric shock Periodically check the platform on which is placed for...

Page 22: ...22 12 6 Failure diagnosis ...

Page 23: ......

Page 24: ...Address Haier Industrial Park Qianwangang Road Eco Tech Development Zone Qingdao 266555 Shandong P R C Contacts TEL 86 532 88936943 FAX 86 532 8893 6999 Website www haier com ...

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