Haier 1UH071N1ERG user guide manual

SPLIT SYSTEM AIR CONDITIONER INSTALLATION MANUAL

Contents

1UH071N1ERG 1UH090N1ERG 1UH105N1ERG

1UH125P1ERG 1UH140P1ERG 1UH125P1ERK 1UH140P1ERK

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

11 13 14 15 15 17

1 2 3 6 7

English

No. 0150518634

This product must only be installed or serviced by qualified personnel. Please read this manual carefully before installation.

Keep this operation manual for future reference.

Original instructions

Haier Industrial Park,Qianwangang Road,Eco-Tech Development Zone,Qingdao 266555,Shandong,P.R.C.

DISPOSAL REQUIREMENTS:

Your air conditioning product is marked with this symbol.This means that electrical and electronic products shall not be mixed with unsorted household waste.Do not try to dismantle the system yourself:the dismantling of the air conditioning system,treatment of the refrigerant,of oil and of other part must be done by a qualified installer in accordance with relevant local and national legislation.Air conditioners must be treated at a specialized treatment facility for reuse, recycling and recovery.By ensuring this product is disposed of correctly,you will help to prevent potential negative consequences for the environment and human health.Please contact the installer or local authority for more information. Battery must be removed from the remote controller and disposed of separately in accordance with relevant local and national legislation.

IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED

Contains fluorinated greenhouse gases covered by the Kyoto Protocol

R410A

This product contains fluorinated greenhouse gases covered by the Kyoto Protocol.Do not vent into the atmosphere. Refrigerant type:R410A GWP*value:1975 GWP=global warming potential Please fill in with indelible ink,

1 the factory refrigerant charge of the product 2 the additional refrigerant amount charged in the field

and 1+2 the total refrigerant charge on the refrigerant charge label supplied with the product. The filled out label must be adhered in the proximity of the product charging port(e.g.onto the inside of the stop value cover). A contains fluorinated greenhouse gases covered by the Kyoto Protocol B factory refrigerant charge of the 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

WARNING

f the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in

order to avoid a hazard.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities,

or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance. This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or

mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

The appliances are not intended to be operated by means of an external timer or separate remote-control system. Keep the appliance and its cord out of reach of children less than 8 years. The A-weighted sound pressure level is below 70 dB. This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial

use by lay persons

The power cable should be H05RN-F 3G 4.0mm

Air conditioner working temperature: cooling 10~46 degree, heating -15~24 degree.

1. Definitions

1.1. Meaning of warnings and symbols

Warnings in this manual are classified according to their severity and probability of occurrence.

DANGER

Service company:

Qualified company which can perform or coordinate the required serice to the unit.

Applicable legislation:

All international, European, national and local directives, laws, regulations and/or codes which are relevant and applicable for a certain product or domain.

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 result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

NOTICE

Indicates situations that may result in equipment or property-damage accidents only.

INFORMATION

This symbol identifies useful tiops or additional information.

Some types of danger are represented by special symbols:

Accessories:

Equipment which is delivered with the unit and which needs to be installed according to instructions in the documentation.

Optional equipment:

Equipment which can ooptionally be combined to the products as per the subject of this manual.

Field supply:

Equipment which needs to be installed according to instructions in this manual, but which are not supplied by

Haier.

2. Safety considerations

The precautions here, all cover very impertant topics, so be sure to follow them catefully.

All activities described in this manual shall be carried out by an installer.

Electric current.

Danger of burning and scalding.

1.2. Meaning of used terms

Installation manual:

Instruction manual specified for a certain product or application, explaining how to install, configure and maintain it.

Operation manual:

Instruction manual specified for a certain product or application, explaining how to operate it .

Maintenance instructions:

Instruction manual specified for a certain product or application, which explains ( if relevant ) how to install, configute, operate and/or maintain the product or application.

Dealer:

Sales distributor for products as per the subject of this manual.

Installer

Technical skilled person who is qualified to install products as per the subject of this manual.

User:

Person who is owner of the product and/or operates the product.

Be sure to wear adequate personal protection equipment (

Protection gloves, safety glasses......) when performing

installation, maintenance or service to the unit.

If not sure of installation procedures or operation of the unit, always contact your local dealer for advice and information.

Improper installation or attachment of equipment or accessories could result in electric shock, short-circuit, leaks, fire or other damage to the equipment. Be sure only to use accessories, optional equipment and spare parts made by which are specially designed for use with the products as of subject in this manual and have them installed by an installer.

DANGER: ELECTRICAL SHOCK

Switch off all power supply before removing the switch box service panel or before making any connections or touching electrical parts.

avoid electric shock, be sure to disconnect the power

To supply 2 minute or more before servicing the electrical parts. Even after 2 minute, always measure the voltage at the terminals of main circuit capacitors or electrical parts. Even after 2 minute, always measure the votage at the terminals of main circuit capacitors or electrical parts, and before touching, be sure that those voltages are 50V DC or less.

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.

DANGER: DO NOT TOUCH PIPING AND INTERNAL PARTS

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.

Warning:

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 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.

round cooling applications with low indoor humidity

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.

Caution:

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.

Where there is machinery which emits electromagnetic waves. Electromagnetic andcause malfunction of the equipment. Where flammable gases may leak, where carbon fiber or ignitable dust is suspended in the air or where volatile flammables, such as thinner or gasoline, are handled. SUch gases may cause a fire. Where the air contains high levels of salt such as that near the ocean. Where voltage fluctuates a lot, such as in factories. In vehicles or vessels. Where acidic or alkaline vapour is present.

Do not allow a child to mount on the outdoor unit or avoid placing any object on the unit. Falling or tumbling may result in injury. The unit may stop for several minutes during normal operation for "defrosting the unit", or when in "thermostat stop" operation. This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.

Provide a logbook

In accordance with the relevant national and international codes, it may be necessary to provide a logbook with the equipment containing at least

- info on maintenance.

- repair work,

- results of tests,

- stand-by periods,

- etc...

In Europe, EN378 provides the necessary guidance for this logbook.

waves

may disturb the control system,

3. Before installation

3.1. Scope of this manual

This manual describes the procedures for handling, installing and connecting 1UH071~140 units.

Check the following if the ground-fault circuit interrupter is triggered:

Make sure that the interrupter is compatible with high frequencies. This unit has an inverter, so an interrupter capable of handling high frequencies is needed to prevent malfunction of the interrupter itself.

3.3. Precautions for R410A

The refrigerant requires strict cautions for keeping the system clean, dry and tight.

- Clean and dry Foreign materials (including mineral oils or moisture) should be prevented from getting mixed into the system.

- Tight

Read "9. Precautions on refrigerant piping" on page 10 carefully and follow these procedures correctly.

Since

R410A is 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 exclusively for R410A.

indoor units must be indoor units designed

3.4. Installation

For installation of the indoor unit(s), refer to the indoor unit installation manual. Illustrations show 1UH140P1ERK outdoor unit type. Other types also follow this installation manual. This outdoor when used as the outdoor unit for the simultaneous operation system. Refer to catalogues for details. Never operate the unit with a damaged or disconnected discharge thermistor and suction thermistor, burning of the compressor may occur. Be sure to confirm the model name and the serial no. of the outer(front) plates when attaching/detaching the plates to avoid mistakes. When closing the service panels, take care that the tigntening torque does not exceed 4.1 N.M.

unit requires the pipe branching kit(optional)

3.2. Precautions

CAUTION

Since maximum working pressure is 4.15 MPa or 41.5

pipes of larger wall thickness may be required. Refer

bar,

to paragraph "6.2. Selection of piping material" on page

10.

NOTICE: Insulation resistance of the compressor

If, after installation, refrigerant accumulates in the compressor, the insulation resistance can drop, but if it is at least 1 Turn the power on and leave it on for six hours. Then, check if the insulation resistance of the comressor has risen or not. The compressor will heat up and evaporate any refrigerant in the compressor.

, then the machine will not break down.

3.5. Accessories

Check if the following accessories are included with the unit: See the figure below for the location of the accessories.

- Do not climb, sit or stand on top of the unit.

- Be sure that sufficient precautions are taken, in accordance with applicable legislation, in case of refrigerant leakage.

installation manual

rubber base foot

4. Selecting installation site

4.1. General

WARNING

Be sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter bye small animals. Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.

NOTICE

This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

When installing the unit in a place exposed to strong wind, pay special attention to the following. Strong winds of 5 m/sec or more blowing against the outdoor unit's air outlet 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 unit in a place where the wind direction can be foreseen.

Repare a water drainage channel around the foundation, to drain waste water from around the unit. If the water drainage of the unit is not easy, please build up the unit on a foundation of concrete blocks, etc.(the height of the foundation should be maximum 150mm). If you install the unit on a frame, please install a waterproof plate(field supplu) within 150mm of the underside of the unit in order to prevent the invasion of water from the lower direction. When installing the unitin a place frequently exposed to snow, pay special attention to elevate the foundation as high as possible. Make sure that the unit is installed level.

Select an installation site where the following conditions are satisfied and that meets with your customer's approval.

- Places which are well-ventilated.

- Pllaces where the unit does not bother next-door neighbours.

- Safe places which can withstand the unit's weight and vibration and where the unit can be installed level.

- Places where there is no possibility of flammable gas or product leak.

- The equipment is not intended for use in a potentially explosive atmosphere.

- Places where servicing space can be well ensured.

- Places where the indoor and outdoor units's piping and wiring lengths come within the allowable ranges.

- Places where water leaking from the unit cannot cause damage to the location (e.g. in case of a blocked drain pipe)

- Places where the rain can be avoided as much as possible.

- Do not install the unit in places often used as work place. In case of construction works (d.g.grinding works ) where a lot of dust is created, the unit must be covered.

- Do not place any objects or equipment on top of the unit( top plate).

4.2. General

NOTICE

When operating the outdoor unit in a low outdoor amnient temperature, be sure to follow the instructions described below.

To prevent exposure to wind, install the outdoor unit with its suction side facing the wall. Never install the outdoor unit at a site where the suction side may be exposed directly to wind. To prevent exposure to wind, install a baffle plate on the air discharge side of the outdoor unit. In heavy snowfall areas it is very important to select an installation site where the snow will not affect the unit and set the outlet side at a right angle to the direction of the wind.

5. Precautions on installation

NOTICE

If drain holes of the outdoor unit are covered by a mounting base or by floor surface, raise the unit in order to provide a free space of more than 130mm under the outdoor unit.

130mm

If the coating on the fastening area is stripped off, the nuts rust easily. Dimensions (bottom view)(unit of measurement:mm)

349

174 A 600 174

367

276

A leg pitch1 B leg pitch2 C Front grill (air outlet side) D Drain hole E Bottom frame F Knock-out hole (for piping line)

450

B (405~410)

5.1. Foundation work

Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installation. In accordance with the foundation drawing in the figure, fix the unit securely by means of the foundation bolts. (Prepare four sets of M12 foundation bolts, nuts and washers each which are available on the market.) It is best to screw in the foundation bolts until their length are 20mm from the foundation surface.

5.2.Selection of installation location of outdoor

(1)Single-unit installation (unit: mm)

Back

Above 150

Front

Above 500

Back and side

Height of barriers is below that of outdoor unit

Fix the outdoor unit to the foundation bolts using nuts with resin washers(1) as shown in the figure.

Above 200

Above 150 Above 300

Front and back

Above 150

Above 1000

When barriers exist above the unit

5.3. Drain pipe disposal

Above 150

Above 500

Above 1000

The top and two side surfaces must be exposed to open space, and barriers on at least one side of the front and back shall be lower than the outdoor unit.

(2) Multi-unit installation (unit: mm)

Back and side

Above 200

Above 150

Above 300

Front and back

Make sure the drain works properly.

where buildups of snow can be expected, the

Above 1000

In regions 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.

6. Refrigerant pipe size and allowable pipe length

DANGER

Piping an other pressure containing parts shall comply with the applicable legislation and shall be suitable for refrigerant. Use phosphoric acide deoxidised seamless copper for refrigerant. Installation shall be done by an installer, the choice of materials and installation shall comply with applicable legislation. In Europe the EN378 is the application standard that shall be used.

Above 300 Above 300

Above 1000 Above 200

Height of barriers is below that of outdoor unit

(3) Multi-unit installation in front and back (unit: mm)

Standard

Above 1000

Above 300

Above 1500

Above 2000

Above 200

The top and two side surfaces must be exposed to open space, and barriers on at least one side of the front and back shall be lower than the outdoor unit.

The installation service spaces shown in the illustrations are based

on an air intake temperature of 35

(DB) for

COOL operation. In regions where the air intake temperature regularly exceeds 35

(DB), or if the heat load of outdoor units is expected to regularly exceed the maximum operating capacity, reserve a larger space than that indicated at the air intake side of units. Regarding the required air outlet space, position the units with consideration to the space required for the onsite refrigerant piping work as well. Consult your dealer if the work conditions do not match those in the drawings.

INFORMATION

It is forbidden to discharge refrigerant into the atmosphere. Collect the refrigerant in accordance with the freon collection and destruction law.

NOTICE

To persons in charge of piping work: Be sure to open the stop valve after piping installing and vacuuming is complete. (Running the system with the valve closed may break the compressor.)

NOTICE

Do not use flux when brazing the refrigerant piping. For brazing, use phosphor copper brazing filler metal (BCuP) which does not require a flux. (If a chlorine flux is used, the piping will corrode, and if the flux contains fluoride, if will cause the coolant oil to deteriorate, adversely affecting the coolant piping system.)

6.1. Necessary Tools and Materials

Prepare the following tools and materials necessary for installing and servicing the unit. Necessary tools for use with R410A(Adaptability of tools that are for use with R22 and R407C).

1. To be used exclusively with R410A ( Not to be used if used with R22 or R407C )

Tools/Materials Use Notes

Gauge Manifold Evacuating,refrigerant charging 5.09MPa on the High-pressure side.

Charging Hose Evacuating, refrigerant charging Hose diameter larger than the concentional ones.

Refrigerant Recovery Equipment Refrigerant recovery

Refrigerant Cylinder Refrigerant charging Write down the refrigerant type. Pink in color at the top of the cylinder.

Refrigerant Cylinder Charging Port Refrigerant charging Hose diameter larger than the conventional ones.

Flare Nut Connecting the unit to piping Use Type-2 Flare nuts.

2. Tools and materials that may be used with R410 with some restrictions

Tools/Materials Use Notes

Gas leak detector Detection of gas leaks The ones for HFC type refrigerant may be used.

Vacuum Pump Vacuum drying May be used if a reverse flow check adaptor is attached.

Flare Tool Flare machining of piping Chages have been made in the flare machining dimension.Refer to the next page.

Refrigerant Recovery Equipment Recovery of refrigerant May be used if designed for use with R410A.

3. Tools and materials that are used with R22 or R407C that can also be used with R410A

Tools/Materials Use Notes

Vacuum Pump with a Check Valve Vacuum drying

Bender Bending pipes

Torque Wrench Tightening flare nuts Only 12.70 (1/2'') and 15.88(5/8'') have a larger flare machining dimension.

Pipe Cutter Cutting pipes

Welder and Nitrogen Cylinder Welding pipes

Refrigerant Charging Meter Refrigerant charging

Vacuum Gauze Checking vacuum degree

4. Tool and materials that must not used with R410A

Tools/Materials Use Notes

Charging Cylinder Refrigerant Charging Must not be used with R410-type units.

Tools for R410A must be handled with special care, and keep moisture and dust from entering the cycle.

6.2. Piping Materials

Types of Copper Pipes (Reference)

Maximum Operation Pressure Applicable Refrigerants

3.4MPa R22, R407C

4.15MPa R410A

Use pipes that meet the local standards.

Piping Materials/Radial Thickness

Use pipes made of phosphorus deoxidized copper. Since the operation pressure of the units that use R410A is higher than that of the units for use with R22, use pipes with at least the radial thickness specified in the chart below. (Pipes with a radial thickness of 0.7mm or less may not be used.)

Size(mm) Radial Thickness(mm)Size(inch)

6.35

9.52

12.7

15.88

19.05 3/4'' 1.0t

1/4''

3/8''

1/2''

5/8''

0.8t

1.0t

Although it was possible to use type-O for pipes with a size of up to 1/2H pipes for units that use R410A.(Type-O pipes may be used if the pipe size is

Type

Type-O pipes

Type-1/2H or Hpipes

19.05(3/4") with conventional refrigerants, use type-

19.05 and the radial thickness is 1.2t.)

The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local standards.

Flare Machining (type-O and OL only)

The flare machining dimensions for units that use R410A is larger than those for units that use R22 in order to increase air tightness.

Flare Machining Dimension(mm)

External dimension of pipes

6.35

9.52

12.7

15.88

19.05

Size

1/4"

3/8"

1/2"

5/8"

3/4"

Dimension A

R410A R22

9.1

13.2

16.6

19.7

24.0

9.0

13.0

16.2

19.4

23.3

Dimension A

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.

Flare Nut

Type-2 flare nuts instead of type-1 nuts are used to increase the strength. The size of some of the flare nuts have also been changed.

Flare nut dimension(mm)

17.0

22.0

26.0

29.0

36.0

Dimension B

17.0

22.0

24.0

27.0

36.0

Dimension B

External dimension of pipes Size

6.35

9.52

12.7

15.88

19.05

1/4"

3/8"

1/2"

5/8"

3/4"

R410A(Type2) R22(Type1)

Using this table as a reference, choose pipes that meet the local standards.

NOTICE

For new installations, use the standard pipe sizes. When using existiong pipes, size-up is allowed as mentioned in the table above. Additional restrictions towards allowable pipe lengths, as mentioned in the table 7.3 on page 11, must be

taken into account.

Not using the standard lpipe size may result in capacity decrease. The installer must acknowledge this and judge this very carefully in function of the complete installation.

Existing or pre-installed piping can be used

Cautions on handling the service port

Always use a charge hose equipped with a valve depressor pin, since the service port is a Schrader type valve. After handling the service port, make sure to tighten the service port cap securely. For the tightening torque, refer to the table below. Check for refrigerant leaks after tightening the service port cap.

7. Refrigerant piping

1. Piping must comply with the criteria below.

Piping diameter must comply with the limitations as indicated in paragraph "7.2. Refrigerant pipe size " on

page 11.

Piping length must be withinlimits of the allowable piping length as in paragraph "7.3. Allowable pipe length and height difference" on page 11.

Piping must be designed for R410A. See paragraph

"6.2. Selection of piping material" on page 10.

2. Piping can be reused without cleaning when:

Total 1-way piping length:

No compressor breakdown has occurred in the history

50m.

of the unit to be replaced.

A correct pump down operation can be executed:

- Operate the unit continuously for 30minutes in cooling mode.

- Execute a pump down operation.

- Remove the air conditioning units to be replaced.

Check the contamination inside the existing piping. If you cannot meet all these requirements, the existing pipes must be cleaned or replaced after removing the air conditioning units to be replaced.

7.1. Piping diagram for single split

Flare connection

Indoor unit

Gas pipe

Liquid pipe

7.2. Piping size for single split

ABH071H1ERG ABH090H1ERG ABH105H1ERG

ABH125K1ERG ABH140K1ERG

PipeModel

Liquid pipe

Gas pipe

Diameter of pipe

9.52mm

15.88mm

Install the removed flare nuts

90+0.5

to the pipes to be connected, then flare the pipes.

3-way stop valve

Outdoor unit

3-way stop valve

3. Prepare the flare connections for higher pressure. See paragraph 6.2

Cautions on handling the stem cap

The stem cap is sealed where indicated by the arrow.

ake care not to damage it.

T 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 tightening the stem cap.

7.3. Limitations for one way piping length and vertical height difference for single split

Model

One way piping length

ABH071H1ERG ABH090H1ERG ABH105H1ERG

less than 50 m

ABH125K1ERG ABH140K1ERG

less than 75 m

Vertical height difference (between indoor

less than 30 m

and outdoor)

Precautions for refrigerant piping

Do not twist or crush piping. Be sure that no dust is mixed in piping. Bend piping with as wide angle as possible. Keep insulating both gas and liquid piping. Check flare-connected area for gas leakage.

7.4. Piping connection method

Apply refrigerant oil to the joint and the flange. To bend a pipe, give the roundness as possible not to crush the pipe. When connecting pipe, hold the pipe centre to centre and then screw nut on by hand, refer to Fig. Be careful not to let foreign matters, such as sands enter the pipe.

Spanner

Joint

Spanner

Nut

Pipe diameter Fastening torque (N.m)

Liquid pipe 6.35mm

Liquid pipe 9.52mm

Gas pipe 12.7mm

Gas pipe 15.88mm

Gas pipe 19.05mm

14.2-17.2

32.7-39.9

49.5-60.3

61.8-75.4

97.2-118.6

Cutting out the two slits makes it possible to install as shown in the figure "Field pipes in 4 directions". (Use a metal saw to cut out the slits.) To install the connecting pipe to the unit in a downward direction, make a knock-out hole by penetrating the

centre area around the knock-out hole using 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.

7.5. Preventing foreign objects from entering

Plug the pipe through-holes with putty or insulating material (procured locally) to stop up all gaps, as shown in the figure.

Field pipes can be installed in four directions (A, B, C, D, E).

A: Forward B: Backward C: Sideways D: Downward E: Power supply cable,outdoor and indoor connection cable

1 Putty or insulating material (produced locally)

If there is any possibility that small animals enter the system through the knock-out holes, plug the holes with packing materials (field supplied).

Insects or samall animals entering the outdoor unit may cause a short circuit in teh electrical box.

Seal knock-out holes to avoid snow and humidity entering.

7.6. Preventing foreign objects from entering

Be careful not to let the indoor and outdoor piping come into contact with the compressor terminal cover. If the liquid-side piping insulation might come into contact with it, adjust the height as shown in the figure below. Also, make sure the field piping does not touch the bolts or outer panels of the compressor. When the outdoor unit is installed above the indoor unit the following can occur: The condensed water on the stop valve can move to the indoor unit. To avoid this, please cover the stop valve with sealing material.

If the temperature is higher than 30 higher than RH 80 should be at least 20mm in ouder to avoid condensation on the surface of the sealing. Be sure to insulate the liquid and gas-side field piping.

NOTICE

Any exposed piping may cause condensation.

, then thickness of the sealing materials

and the humidity is

NOTICE

Do not purge the air with refrigerants. 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.

8.2. Leak test

(The highest temperature that the gas-side piping can reach is around 120

material which is very resistant.)

DANGER

No not touch piping and internal parts.

7.7. Cautions for necessity of a trap

To avoid the the risk of oil held inside the riser piping flowing back into the compressor when stopped and causing liquid compression phenomenon, or cases of deterioration of oil return, it will be necessary to provide a trap at each difference in height of 10m in the riser gas piping.

A trap is not necessary when the outdoor unit is installed at higher position than the indoor unit.

, so be sure to use insulating

8. Leak test and vacuum drying

When all piping work is complete and the outdoor unit is connected to the indoor unit, it is necessary to :

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, turn off the vacuum pump and check that the pressure does not rise for at least 1 minute.

1.3 Should the pressure rise, the system may either contain moisture (refer to the paragraph " Vacuum drying ") or have leaks.

2 Pressure leak test

2.1 Break the vacuum by pressurizing with nitrogen gas to a minimum gauge pressure of 0.2 MPa (2 bar). Never set the gauge pressure higher than the maximum operation pressure of the unit, i.e. 4.0MPa (40bar).

2.2 Test for leaks by applying a bubble test solution to all piping connections.

NOTICE

Make sure to use a recommended bubble test solution from your wholesaler. Do not use soap water, which may cause cracking of falre nuts (soap water may contain salt, which absorbs moisture that will freeze when the piping gets cold). and/or lead to corrosion of flared joints (soap water may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare).

check for any leakages in the refrigerant piping to perform vacuum drying to remove all moisture in the refrigerant piping.

If there is a possibility of moisture being present in the refrigerant piping (for example, rainwater may have entered the piping), first carry out the vacuum drying procedure below until all moisture has been removed.

8.1. General guidelines

All piping inside the unit has been factory tested for leaks. Use a 2-stage vacuum pump with a non-return valve which can evacuate to a gauge pressure of-100.7kPa(5 Torr absolute,-755mm Hg). Connect the vacuum pump to both the service port of the gas stop valve and the liquid stop valve to increase efficiency.

8.3. Vacuum drying

To remove all mositure from the system, proceed as follows: 1 Evacuate the system for at least 2 hours to a target vacuum of -100.7 kPa(=-1.007 bar). 2 Check that, with the vacuum pump turned off, the target vacuum is maintained for at least 1 hour. 3 Should you fail to reach the target vacuum within 2 hours or maintain the vacuum for 1 hour, the system may contain too much moisture. 4 In that case, break the vacuum by pressurizing with nigrogen gas to a gauge pressure of 0.05 MPa (0.5bar) and repeat steps 1 to 3 unit all moisture has been removed. 5 The stop valves can now be opened, and/or additional refrigerant can be charged .

INFORMATION

After opening the stop valve, it is possible that the pressure in the refrigerant piping does not rise. This migeh be caused by e.g. the closed state of the expansion valve in the outdoor unit circuit, but does not present any problem for correct operation of the unit.

This unit requires additional charging of refrigerant according to the length of refrigerant piping connected at the site. Make sure to charge the refrigerant in liquid state to the liquid pipe. Since R410A is a mixed refrigerant, its composition changes if charged in its gaseous state and normal system operation would then no longer be assured. Before charging, check whether the refrigerant cylinder has a suphon attached or not and position the cylinder accordingly.

9. Charging refrigerant

9.1. Important information regarding the refrigerant used

This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmopsphere.

9.2. Precautions and general guidelines

When servicing the unit requires the refrigerant system to be opened, treatment and evacuation of refrigerant must be done in accordance with applicable legislation. Refrigerant can not be charged until field wiring has been completed. Refrigerant may only be charged after performing the leak test and vacuum drying.

CAUTION

Fill using a cylinder with a siphon attached Charge the liquid refrigerant with the cylinder in upright position.

On this model it is not necessary to charge additionally if the piping length

20m.

Fill using a cylinder

siphon attached

with a Charge the liquid refrigerant with the cylinder in up-sidedown position.

9.3. Complete recharging

NOTICE

Berore recharging, make sure to execute vacuum drying of the intermal piping of the unit as well. To do so, use the internal service port of the unit. Do not use the service ports located on the stop valve, since vacuum drying can not be performed properly from these ports. Outdoor units have 1 port on the piping. It is between the heat exchanger and the 4-way valve.

When charging a system, care shall be taken that its maximum permissible charge is never exceeded, in view of the danger of liquid hammer.

WARNING

Refrigerant cylinders shall be opened shlowly. Always use protective gloves and protect your eyes when charging refrigerant.

DANGER

When the power is on, please close the front panel when leaving the unit unattended. Charging with an unsuitable substance may cause explosions and accidents, so always ensuren that the appropriate refrigerant (R410A) is charged.

In case complete recharging is required (after a leak, etc.), refer to teh information below to determine the necessary amount of refrigerant.

WARNING

Some sections of the refrigerant circuit may be isolated from other sections caused by components with specific functions (e.g. valves). The refrigerant circuit therefore features additional service ports for vacuuming, pressure relief or pressurizing the circuit. In case it is required to perform brazing on the unit, ensure that there is no ressure remaining inside the unit. Internal pressures need to be released with ALL the service ports indicated on the figures below opened. The location is depending on mode type.

1 Make sure that stop valves

both on liquid and on gas side are open.

9.4. Total charging weight of the refrigerant (after a leak, etc.)

The total charging amounts relate to the refrigerant piping length as in "Maximum total one-way piping length" of the table in paragraph "8.4. Allowable pipe length and height difference" on page 8.(E.g. twin: L1+L2)/

2 Push the BS4 pumping-down

operation button on the PC board of the outdoor unit (8 seconds).

Compressor and outdoor fan will start operation automatically. The indoor unit fan may automatically start running. Please pay attention to this.

3 Close the stop valve on the

liquid side securely about 2 minutes after the compressor started ooperation.

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

4 Once compressor operation

stops after 2 to 5 minutes (a), close the stop valve on the gas side securely.

compressor operation, during compressor operation, pumping-down operation cannot be executed.

5 Turn off the power supply.

(a) If after finishing pumping-down operation the outdoor unit does not operate, not even when the remote controller switch is turned on, the remote controller may or may not indicate "

". But this is not a malfunction.

Refrigerant piping length (liquid side)

Model

(a)

1UH071N1ERG 1UH090N1ERG

1UH105NS1ERG

1UH125P1ERG 1UH125P1ERK

1UH140P1ERG 1UH140P1ERK

5-10m

10-20m

2.5 2.5 2.5

30-40m

20-30m

2.95

3.4

3.4 3.85

3.7 3.7 3.7 4.15 4.6

40-50m

5.05 5.5 5.95

50-60m

---

60-70m

670-80m

10. Pump down operation

This unit is equipped with an automatic pump down operation which will collect all refrigerant from the field piping and indoor unit in the outdoor unit. To protect the environment, make sure to perform the following pump down operation when relocating or disposing of the unit.

INFORMATION

For more details, refer to the applicable service manual.

When in need of operation, turn off the main power supply and turn it on again. Make sure that stop valves both on liquid and gas side are open and be sure to ooperate the unit in cooling operation during test run.

WARNING

Make sure to re-open both stop valves before restarting operation of the unit.

11. Electrical wiring work

WARNING

All wiring must be performed by an authorized electrician. All components procured on the side and all elecrtic construction shall comply with the applicable legislation.

DANGER: HIGH VOLTAGE

To avoid electrical shock, make sure to disconnect the power supply 1 minute or more before servicing the electrical parts. Even after 1 minute, always measure the voltage at the terminals of main circuit capacitors or electrical parts and, before touching , make sure that those voltages are 50VDC or less.

NOTICE

To persons in charge of electrical wiring work: Do not oerate the unit until the refrigerant piping is complete. (Running it before the piping is ready will break the compressor.)

11.2. Connecting power supply and inter-unit wiring

Connect and fix the power supply cable, indoor-outdoor connection cable as following:

11.1. Precautions on electrical wiring work

DANGER

Before obtaining access to terminal devices, all supply circuits must be interrupted. Be sure to install an earth leakage circuit breaker in accordance with aplicable legislation. Failure to do so may cause electrical shock.

Use only copper wires. A main switch or other means for disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring in accordance with applicable legislation. Do not turn on the main switch until all the wiring is completed.

For Y1

Make sure to connect power supply cables in normal phase. If of the indoor unit indicates " operate. Change any two of the three power supply cables (L1,L2,L3) to correct phase. If the contact in the magnetic switch should be forcibly turned on while the equipment is inoperative, the compressor will burn out. Never try to forcibly turn on the contact. Never squeeze bundled cables into a unit. Fix cables so that cables do not make contact with the pipes (especially on high pressure 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 breaker. As advancing capacitor not only will deteriorate power factor improvement effect, but also may cause capacitor abnormal heating accident due to high-frequency waves. Therefore, never install a phase advancing capacitor.

CAUTION

Be sure to install the required fuses or circuit breakers.

connected in reverse phase, the remote controller

" and the equipment cannot

this unit is equipped with an inverter, installing a phase

123

Outdoor unit terminal blocks

Power supply: 1PH,220-240V~, 50/60Hz

123

Indoor unit terminal blocks

For single phase power supply models: 1UH071N1ERG,1UH090N1ERG,1UH105N1ERG, 1UH125P1ERG,1UH140P1ERG Power supply cable: H05RN-F 3G 4.0mm

Indoor and outdoor connection cable: H05RN-F 4G 2.5mm

RST N

123

Outdoor unit terminal blocks

Power supply: 380-415V,3N~, 50/60Hz

123

Indoor unit terminal blocks

For three phase power supply models: 1UH125P1ERK,1UH140P1ERK Power supply cable: H05RN-F 5G 2.5mm Indoor and outdoor connection cable: H05RN-F 4G 2.5mm

Fix the cable with the clip to prevent slide.

Clip

Outdoor-indoor unit

Power supply cable

connection cable Secure the cable to the stop valve attachment plate so that it does not slide. When cables are routed from the unit, a protection sleeve for the conduits (PG-insertions) can be inserted at the knock-out hole. When you do not use a wire conduit, be sure to protect the wires with vinyl tubes to revent the edge of the knockout hole from cutting the wires. Follow the electric wiring diagram for electrical wiring works.

Clip

Form the wires and fix the cover fimmly so that the cover may be fit in properly. When you do not use a wire conduit, be sure to protect the wires with vinyl tubes to revent the edge of the knockout hole from cutting the wires. Follow the electric wiring diagram for electrical wiring works. Form the wires and fix the cover fimmly so that the cover may be fit in properly.

- Do not connect wires of different gauge to the same power supply terminal. (Looseness in the connection may cause overheating.) Use the correct screwdriver to tighten the terminal screws. Small screwdrivers can damage the screw head and prevent appropriate tightening. Over-tightening the terminal screws can damage the screws.

11.3. Specifications of standard wiring components

CAUTION

Select all cables and wire sizes in accordance with applicable legislation. After finishing the electrical work, confirm that each electric part and terminal inside the electric part box is connected securely. The earth leakage breaker must be a high-speed type breaker of 30 mA(

0.1 s).

12.1. Pre-run checks

Items to check

Electrical wiring Inter-unit wiring Ground wire

Refrigerant piping

Extra refrigerant

Is the wiring as mentioned on the wiring diagram? Make sure no wiring has been forgotten and that there are no missing phases or reverse phases. Is the unit properly grounded? Is the wiring between 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.

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 for both the liquid side and the gas side open?

Did you write down the extra refrigerant and the refrigerant piping length?

12. Test operation

DANGER

Never leave the unit unattended during installation or servicing. When the service panel is removed live parts can be easily touched by accident.

INFORMATION

Note that during the first running period of the unit, required power input may be higher than stated on the nameplate of the unit. This phenomenon originates from the compressor that needs elapse of a 50 hours run in period before reaching smooth operation and stable power consumption.

Be sure to perform a test run. Be sure to fully open the liquid-side and gas-side stop valves. If you operate the unit with stop valves closed, the compressor will break down. Be sure to execute the first test run of the installation in cooling mode operation. Never leave the unit unattended with an open front panel during test run.

12.2. Precautions regarding test-runs

In order to detect stop valves failing to open, operation of the unit is compulsorily performed in cooling for 2-3 minutes during the first test run, even if the remote controller was set to heating operation. In this case, the remote controller will have kept displaying the heating symbol all the time and the unit will switch to heating operation automatically after elapse of that time. In case you cannot ooperate the unit in test run mode

for any unusual reason, refer to "12.6. Failure diagnosis

at the moment of first installation" on page 22.

In case of a wireless remote controller, execute the run

only after having installed the indoor unit decoration panel with infrared receiver first. In case the panels of indoor units are not yet installed

to the indoor units, make sure to shut off the power supply after finishing the complete test run.

complete test run surely includes shutting off power

after having performed a normal operation stop on the remote controller. Do not stop operation by turning circuit breakers off.

12.3. Refrigerant pipe size for maix split system

The MAXI SPLIT system is an ideal option for open spaces in medium sized premises such as shops and offices,where two,three or four units are required.These can be Cassettes ( AB Series) or Ceiling supended (AC Series) models and can be connected to a single outdoor unit using twin,triple,quadruple manifold.Please refer to the table below to choose suitable manifold and wire controller according to combinations of indoor unit and outdoor unit.

The matching table of MAXI SPLIT series

Manifold Model

FQG-2Y100A 2

FQG-2Y200A 2

FQG-3Y100A 3

FQG-3Y200A 3

FQG-4Y200A 4

Gas side manifold Liquid side manifold

Outdoor unit Model

1UH105 18000BTU

1UH125 1UH140

1UH105 12000BTU

1UH125 1UH140

Indoor Unit Model

24000BTU 28000BTU

18000BTU

12000BTU

Number of indoor Units

Wire controler

YR-E14 OR YR-E16

MAXI SPLIT SYSTEM UNITS WIRING DIGRAM

123

terminal block Indoor unit 1

terminal block Indoor unit 2

terminal block Indoor unit 3

terminal block Indoor unit 4

SRNTNL

3N~,50Hz, 380-400V

3PH TYPE

master

slave

1PH~,50Hz, 220-230V

1PH TYPE

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 quantity.

4. Make sure that the wire connection for all units in MAXI system OK before running.

terminal block Outdoor unit

12.4. Specification of refrigerant charge for single split and maxi split.

1.It is not neccesary to charge additionally when the piping length L+P

20m.

2.Please charge refrigerant additionally according to the following table when the piping length L+P complete recharge .

Single Split Twin Triple Quadruple

L1 L2

(L-20)*45+P*30

L>20

20,L+P>20

(L+P-20)*30

P=L1+L2+L3+L4

Charge(g)

1UH105

1UH125

1UH140

P(m)

L>20

(L-20)*45

P=0

,L+

L 20

(L+P-20)*30

(L+P-20)*45

P>20

P=L1+L2 P=L1+L2+L3

L1 L2

L>20

(L-20)*45+P*30

(L+P-20)*45

20,L+P>20

( +P-20)*30L

(L+P-20)*30

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 sum of the main pipe and branch pipes. For MAXI system (Twin,Triple,Quadruple), piping length=L+P

For single split system,L+P=L,because P=0.

Example 1:

Outdoor unit

1UH105

Note: (1)L=15<20;L+P=L+L1+L2=15+10+5=30>20 (2)Refrigerant charging amount=(L+P-20)*30=300g (3)TYPE 18K means capacity 18000Btu/h type

L=15( 9.52)

L1=10( 6.35)

L2=5( 6.35)

Indoor unit

TYPE 18K

Example 2:

Outdoor unit 1UH125

Note: (1)L=30>20;P=L1+L2+L3+L4=10+10+5+5=30 (2)Refrigerant charging amount=(L-20)*45+P*30=1350g (3)TYPE 12K means capacity 12000Btu/h type

L=30( 9.52)

L1=10( 6.35)

L1=5( 6.35)

20m or need to

L1 L2

L3 L4

L>20

(L-20)*45+P*30

Indoor unit

TYPE 12K

When installing MAXI SPLIT Series(1UH105N1ERG/1UH125P1ERG/1UH125P1ERK/1UH140P1ERG/1UH140P1ERK),Please refer to the table below concerning the pipe lengths , heights and sizes.

608080

80 80

12.5 Before Installing (Relocating) the Unit or Performing Electric Work

CAUTION

Ground the unit.

Do not connect the grounding on the unit to gas pipes,water pipes, lightning rods, or the grounding terminals of telephones. Improper grounding presents a risk of electric shock, smoke, fire, or the noise caused by improper grounding may cause the unit to malfunction.

Make sure the wires are not subject to tension.

If the wires are too taut, they may break or generate heat and/or smoke and cause fire.

Install a breaker for current leakage at the power source to avoid the risk of electric shock.

Without a breaker for current leakage, there is a risk of electric shock, smoke or fire.

Use breakers and fuses (electrical current breaker, remote switch<switch+Type-B fuse>,molded case circuit breaker) with a proper current capacity.

The use of large-capacity fuses, steel wire, or copper wire may damage the unit or cause smoke or fire.

Before the Test Run

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 damage to prevent the unit from falling.

If the unit is left on a damaged plarform, it may topple over, causing injury.

When installing 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.

Properly dispose of the packing materials.

Things such as nails may be included in the package. Dispose of them properly to prevent injury. Plastic bags present a choking hazard to children. Tear up the plastic bags before disposing of them to prevent accidents.

CAUTION

Do not operate switches with wet hands to avoid electric.

Do not touch the refrigerant pipes with bare hands during and immediately after operation.

Depending on the state of the refrigerant in the system, certain parts of the unit such as the pipes and compressor may become very cold or hot and may subject the person to frost bites or burning.

Do not operated the unit without panels and safety guards in their proper places.

They are there to keep the users from injury from accidentally touching rotating, high-tempreture or high-voltage parts.

Do not turn off the power immediately after stopping the unit.

Allow for at least five minutes before turning off the unit, otherwise the unit may leak water or experience other problems.

Do not operate the unit without air filters.

Dust particles in the air may clog the system and cause malfunction.

12.6. Failure diagnosis

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

Haier 1UH071N1ERG user guide manual

Specifications and Main Features

Frequently Asked Questions

User Manual