Haier AB072FDAHA Installation guide

Brand: Haier

Model: AB072FDAHA

Category: Split-system air conditioners

Type: Installation guide

MRV Intelligent Network Cassette Type

Air Conditioner Indoor Unit

INSTALLATION MANUAL

No.0010570459

Please read this manual carefully before using.

Please keep this manual carefully and safely.

AB072FDAHA

AB092FDAHA

AB122FDAHA

AB162FDAHA

AB182FDAHA

AB242FDAHA

AB282FDAHA

AB072FDBHA

AB092FDBHA

AB122FDBHA

AB162FDBHA

AB182FDBHA

AB242FDBHA

AB282FDBHA

Contents

Safety cautions-----------------------------------------------------------------------------------------------------1

Indoor unit installation----------------------------------------------------------------------------------------- 2-7

Refrigerant piping------------------------------------------------------------------------------------------------8-9

Electrical wiring & Application control--------------------------------------------------------------------10-14

Trial operation-----------------------------------------------------------------------------------------------------15

Troubleshooting-----------------------------------------------------------------------------------------------16-17

Panel installation----------------------------------------------------------------------------------------------18-21

Caution

Auto Restart function for C-MRV models

Haier Auto Restart function: when the unit power drops down suddenly, the unit

microprocessor will store the previous working condition and when the power is on again,

the unit will run as this memory.

Auto Restart function is designed basically on the MRV whole system, but it is suitable

for each indoor unit individually.

If some of indoor units power cut down, but the outdoor unit and the other indoor units

still work, maybe problems will happen such as freezing at cooling mode and overload

protection at heating mode on those indoor units without power.

Reason

When one or some indoor units power drops down and the other indoor units are still

work, the indoor units without the power, will keep the previous working condition before

the power is off. And expansion valve keeps open at a kind of opening rate condition as

the previous requirement, so there is refrigerant flowing in the exchanger, but the indoor

fan stops working. If the units work at cooling mode, the indoor units without the power

will maybe make freezing. If the unit works at heating mode, maybe the outdoor unit

compressor will stop because of the pressure or temperature protection. This is our design

basically on Auto Restart function currently.

Haier, Herewith, solemnly informs our customers, installers, distributors, etc. when making

installation, please make sure when the power is shut down whether artificially or

accidentally, the whole system including outdoor unit and all the indoor units must

be off. If you do not make the installation as our indication, Haier will not be responsible

for any problem resulting from this.

Safety Cautions

The following safety measures must be strictly followed.

Keep these safety measures close at hand for timely references.

After installation, trial run must be made to ensure normal operation. Familiarize the user with the use

and maintenance through this manual.

If the air conditioner is transferred to a new user, this manual should also be transferred.

Please pay attention to the following:

Warning: Inappropriate use may lead to fatal or serious injuries.

Caution: Inappropriate use may lead to bodily harm or mechanical damage; it may lead to serious

consequences in some cases.

Any instructions with the sign of ì NOî shall be strictly followed, otherwise, it may cause me-

chanical damage or endanger the safety of the user.

Any instructions with the sign of ì STOPî shall be strictly followed, otherwise, it may cause me-

chanical damage or endanger the safety of the user.

Entrusted installation

Installation should be entrusted with after-sale

servicemen. Self-installation is likely to cause

water leakage, shock and fire, etc.

Installation should be done according to this install-

ation manual. Inappropriate installation may lead to

water leakage, shock and fire, etc.

Connection of the earth wire

The earth wire should not be connected to gas pipes,

water pipes, lightning rods or telephone wires. Poor

earth may lead to shocks

After-sale servicemen should take measures to avoid

refrigerant leakage.

Refrigerant leak may cause anoxia when a certain

density is reached. If the room is small, make sure to

have sound safety measures to avoid anoxia accidents.

The installation of the electric part should be con-

ducted by qualified professionals and done accord-

ing to the installation manual. Special return circuit

must be used. Insufficient capacity return circuit and

inappropriate installation may lead to fire accidents.

Installation site

The site must be firm enough to withstand the weight

of the air conditioner to prevent falling.

During installation, if refrigerant leakage occurs,

ventilation measures must be taken. When refrig-

erant meets with fire, hazardous gas will be produced.

After installation, make sure that there is no refriger-

ant leakage.

Refrigerant, if meeting with heaters and stoves, etc

in the room, may produce hazardous gas.

Specific cables should be used for the wiring. To avoid

external tension of the cables, the terminals should

be firmly fixed. Inappropriate connection and fixture

may lead to fire accidents.

In order to discharge the condensed water, the

installation of the drainpipe should be done in

accordance with the manual instructions. The

drainpipe should be treated for heat isolation.

Inappropriate treatment may lead to water leak-

age in the room.

Electric leak breaker should be installed.

Without it, shock accidents may occur.

Do not install at places where inflammable gas leak

may occur.

Gas leakage may lead to fire accident.

Caution

Warning

Indoor unit installation

18 3

Indoor unit installation

Troubleshooting

93/94

Phenomenon

Running

continues

Running

continues

All stop

Running continues

All stop

Running continues

All stop

Running continues

Stops

Runs

Outdoor interlocked input, including outdoorl unit and indoor PC board

Room-temperature sensor (TA) circuit, including Room-temperat-

ure seasor (TA), indoor PC board

Indoor heat-exchanger temperature sensor circuit (TC1/TC2), including indoor

heat-exchanger temperature sensor (TC1/TC2) and indoor PC board

Indoor fan system, including revolution detecting circuit, indoor fan mo-

tor and indoor PC board

Indoor unit, including PC board (EEPROM and peripheral circuit)

Converter overcurrent protection circuit, including G-Tr, outdoor PC

board, converter wiring and compressor

Current sensor circuit, including current detecting circuit and outdoor

converter PC board

Outdoor defrosting sensor circuit, including outdoor defrosting sensor (TE)

and outdoor converter PC board

Outdoor unit, including outdoor interface control (I/F) PC board

Compressor system, including compressor lock and phase absence

Current detecting circuit, including power pressure and overload of refrig-

erant circulation

High presure switch circuit, including high pressure switch and overload

of refrigerant circulation

Setting of indoor unit number and remote controller

Connecting wire, indoor PC board and remote controller

Center controlled address setting, including address setting (SW02),

central remote controller and indoor PC board

Center controlled communication circuit, including communication wire,

centralized controller, indoor power and indoor PC board

Outdoor abnormal input, including outdoor unit and indoor PC board

Fault

code

Reasons

Fault codes and reason

Troubleshooting

Confirm and verify

1.Press the ì Checkî switch on the remote controller for 1-2 seconds, ì Checkî will appear, and

the unit number and the error code will be displayed on the remote controller.

2.The displayed number is the error unit number.

3.Example is listed as follows:

Normal:

One error:

Two errors:

The signs will be displayed for a very short time. If not seen clearly, press the ì Checkî switch again.

When failure occurs, use the remote controller to display the corresponding error code.

Checking

Fault codes and error place

Fault code

Put the nut on the screw bolt and suspend it on the T slot of the suspension part of the unit.

Keep level of the body (within 5mm) with a gradoenter.

Make sure and adjust the positions of the unit and the ceiling opening as well as the height

of the unit with the installation template.

1. The bottom of the unit is 58mm from the lower ceiling surface. (four corners)

2. Make sure that the front side of the indoor unit (tube side) is 95mm from the ceiling and the

back side of the unit (opposite side) is 35mm from the ceiling with the template.

Installation of the panel

Mount the panel after tubing and wiring installation.

Please refer to P18-21 of this manual for the panel installation.

Before installation, make sure that the positions of the indoor unit and the ceiling opening

are correct.

Requirements:

There is no space between the panel and the ceiling and between the panel and the indoor

unit, otherwise, dew or water leak may occur.

Installation of remote controller

indoor unit

ceiling

installation template

front side

(tube side)

lower

ceiling

surface

indoor unit

back side

(opposite

side)

Tighten the upper nut to fix the indoor unit.

installation template

Please refer to the installation manual for the installation of the remote controller.

Indoor unit installation

suspension screw

(M10)

tighten up with a nut

gradienter

nut (M10)

parts other than M10 flat gasket are

provided during installation

M10 flat gasket

for safety, please mount according

to this diagram

nut (M10)

The indoor drainpipe should be treated for heat isolation.

The indoor connections must have heat isolation. Inappropriate isolation may lead to

dew forming.

The drainpipe must have a falling gradient (above 1/100) and should not be made into

an ì Sî form, otherwise, it will produce noises.

The horizontal length of the pipe should be shorter than 20m. If the pipe is long, one

support should be set up for every 1.5-2m. Avoid undulation of the pipe.

Centralized piping is installed according to the following diagram.

Never apply external forces on the connections of the drainpipe.

To enable normal discharge of water, use drainpipes according to the installation manual. To

avoid forming of dewdrops, it must be treated for heat isolation. Inappropriate tubing may

lead to water leakage in the room.

Caution

Requirements:

Pipe material

5m~2m

isolation

material

"S" shaped pipe

VP30

as large as possible(about 10 cm)

falling gradient

above 1/100

support

falling

gradient

(above 1/100)

Pipe material and isolation material

Unit attached parts:

Isolation material

Hard PVC pipe 31.5mm (inner diameter)

Foam polyethylene thickness above 10mm

Indoor unit installation Trial operation

Before operation

Heating mode

Set the running mode to ì Heatî

Press the ON/OFF button till a blinking ì Hî and an ì Autoî sign appear on the wire controller. Now

the unit enters into heating trial run.

During forced trial run, working modes cannot be changed through the wire controller.

After trial run, press the ON/OFF button to stop the unit.

Trial operation

Refer to the service manual for the running procedure.

When the unit fails to start under room temperature, try forced trial run by the following steps.

Cooling mode

Set the running mode to ì Coolî

Press the ON/OFF button till an ì Lî blinks at the ì Setting Tempî area on the wire

controller LCD and ì Autoî is displayed at the fan speed area. Now the unit enters

into cooling trial run.

Before the unit is turned on, test the resistance between the power block terminal (L, N terminals) and

the earth.If it is below 1M , it can't allowed running.

Turn on the outdoor unit. To protect the compressor during start-up, it should be switched on 12 hours

in advance.

Never operate the electromagnetic contactor manually for forced trial run. (It is dangerous when the

protection device does not work.)

Electrical wiring & Application control

Indoor unit installation

Warning

During installation, if refrigerant gas leakage occurs, ventilation measures must be taken. When

refrigerant gas meets with fire, hazardous gas will be produced.

After installation, make sure that there is no refrigerant leak.

Refrigerant, if meeting with heaters and stoves, etc in the room, may produce hazardous gas.

Allowable tube length and allowable height difference

Different units have different limits. Refer to the attached manual.

Pipe material and size

Material

Model

Pipe size

Gas side

Liquid side

Air conditioner used deoxidized phos-copper (TP

series 072~162

model

Refill refrigerant

Refer to the installation manual for the refilling of refrigerant. A special meter should

be used for the filling of refrigerant and the filling must be in strict accordance with the specifications.

R22:AB072~282FDAHA

R407:AB072~282FDBHA

Requirements:

Overfilling or underfilling may lead to compressor trouble. The filling must be done

in strict accordance with the specifications.

Connection of refrigerant pipes

Connect all refrigerant tubes before connection of the flare tube.

Use two spanners for the indoor connection.

Refer to the following table for the installation torque.

Torque increase (N-m)

Pipe external

diameter (mm)

Torque (N-m)

series 182~282

model

Refrigerant piping

remote controller

Electrical wiring & Application control

()mm

15.88

9.52

12.70

6.35

11.8(1.2kgf-m) 13.7(1.4kgf-m)

9.52

15.88

24.5(2.5kgf-m)

78.4(8.0kgf-m)

29.4(3.0kgf-m)

98.0(10.0kgf-m)

12.70 49.0(5.0kgf-m) 53.9(5.5kgf-m)

19.05

98.0(10.0kgf-m) 117.7(12.0kgf-m)

Set capacity (SW05)

Electrical wiring & Application control

Wiring hole

Remote controller wiring

Application control

Vacuum evacuation

Open all the valves

Open all the valves of the outdoor unit.

Evacuate from the outdoor cut-off valve with a vacuum pump.

Never use encapsulated refrigerant in the outdoor unit for evacuation.

Check the gas leaking

Check the joints and valve caps with a leakage detector or with soapsuds for gas leaks.

Heat insulation

All the liquid and gas tubes must have separate isolation.

During cooling run, temperature at both the liquid side and the gas side is low. To prevent

dew forming, heat isolation must be made.

Materials used for the tube isolation at the gas side must withstand 120 temperature.

The joints should be treated for heat isolation.

With cut edge up (Attached diagram)

Field tubing side

Auxiliary isolated tube

Indoor unit

Refrigerant piping

Caution

The specifications of the power circuit are listed in the table below. Smaller capacity may cause

overheat or burnout.

Power specifications

Electric leak breaker should be installed. Without it, shock accidents may occur.

To avoid danger, damaged cable must be replaced by professionals of cable makers or the like. Wires

used by the indoor unit should be selected according to the installation manual.

Never connect the block terminal in the control circuit (A, B, C, P, Q, X and Y) to a 220-230V or a

380-400V power line. Otherwise, it may lead to mechanical damage or personal injury.

Avoid contact of electric wires with high temperature pipes to prevent melting of the outer isolation.

Wires should be made into a ì Uî shape after connected to the block terminal, and fixed with clips.

Controlling wires may be laid and fixed together with the refrigerant tubes.

If the supply cord is damaged,it must be replaced by the manufaturer or its service agent or a similar

qualified person.

The wiring method should be in line with the local wiring standard.

All the cables shall have got the European authentication certificate.

The breaker of the air conditioner should be all-pole switch,and the distance between its two contacts

should be no less 3mm.Such means for disconnection must be incorporation in the fixed wiring.

The power cable and connecting cable are self-provided.

Electrical installation should be entrusted with qualified servicemen and done in accordance with the

installation manual. Special return circuit must be used. Insufficient capacity return circuit and

inappropriate installation may lead to fire accidents.

Specific cables should be used for the wiring. To avoid external tension of the cables, the terminals

should be firmly fixed. Inappropriate connection and fixture may lead to fire accidents.

The unit must be earthed.

The unit should be earthed properly. Poor earth may lead to shocks. The earth wire should not be

connected to gas pipes, water pipes, lightning rods or telephone wires.

Warning

1) The type of connecting wire is shielded wire.The type of the power cord is H07RN-F(3G).

2) The wiring diagram refer to the wiring diagram on the indoor and outdoor units.

NOTE:

AB072~282

FDAHA

AB072~282

FDBHA

Indoor unit

power

15A

H05RN-F

3G1.5mm

5A/

250

220-

230V,

50Hz

500m<

1000m

2.5mm

L 50m

Manual

switch

< 500m

1.5mm

< 500m

1.5mm

< 200m

0.75mm

200m<

500m

1mm

Item

Model

Fuse

Connecting cable

Power wire (L)

Central controller

holding wire

Indoor & outdoor

communication wire

Remote controller wire

Number of

cores

Core sec-

tional area

Number of

cores

Core sec-

tional area

Number of

cores

Core sec-

tional area

Electrical wiring & Application control

Wiring should be done according to the number of the

block terminal,inappropriate connetction may lead to error.

Indoor power wiring

The indoor and outdoor units should use separate special power lines.

If several indoor units connect the same outdoor unit, the leak breakers and

switches of the indoor units should use the same power.

Centralized controller communication wiring

The centralized controller communication wire are

non-polarity 2-core wires. (Fig. 1)

To prevent electromagnetic disturbance, please use shielded wires.

Remote controller wiring

The remote controller remote is polarized 3-core wires.

The grouped wire controller wire (between the indoor and indoor

units) is polarized 2-core wires. (Fig. 2)

380~400V,3N~,50Hz

outdoor power

junction box

indoor unit

1PH,220~230V~50Hz

earth

communication wire

shielding layer earth

The shielding layer should be

connected together

(

shielding layer as isolation

)

leak breaker manual switch

remote controller

grouped control

(

shielding layer as isolation

)

(

shielding layer as isolation

)

(

shielding layer as isolation

)

indoor unit

shielding layer should be

connected together

centralized control signal wire earth

centralized control signal wire

(centralized controller)

communication wire

leak breaker manual switch

indoor power

1PH,220~230V~50Hz

indoor unit

(centralized

controller)

specially used

by the power

remote controller

Wiring of indoor unit and outdoor unit

remote

controller

Electrical wiring & Application control

Haier AB072FDAHA Installation guide

Brand: Haier

Model: AB072FDAHA

Category: Split-system air conditioners

Type: Installation guide

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Haier AB072FDAHA Installation guide

Haier AB072FDAHA Installation guide

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