Haier 1U18BR4EAA User manual

Brand: Haier

Model: 1U18BR4EAA

Category: Split-system air conditioners

Type: User manual

Haier 1U18BR4EAA is a wall mounted type ON/OFF air conditioner. It has a cooling capacity of 18000 BTU/h and is suitable for both residential and commercial use. The unit is equipped with a variety of features, including:

Auto restart: The unit will automatically restart after a power outage.
Sleep mode: The unit will operate at a reduced noise level and energy consumption during sleep hours.
Turbo mode: The unit will operate at maximum capacity to quickly cool or heat a room.
Self-cleaning: The unit will automatically clean its evaporator coil to prevent the growth of mold and bacteria.

Auto restart: The unit will automatically restart after a power outage.
Sleep mode: The unit will operate at a reduced noise level and energy consumption during sleep hours.
Turbo mode: The unit will operate at maximum capacity to quickly cool or heat a room.
Self-cleaning: The unit will automatically clean its evaporator coil to prevent the growth of mold and bacteria.

SERVICE MANUAL

Wall Mounted Type

ON/OFF

1U18BR4EAAModel No.

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or

Repair the product or products dealt with in this service information by anyone else could result in serious injury or death

WARNING

2017 (Qingdao Haier Air Conditioner General corp. , Ltd)

Haier Group

Version V1 Date 2017-03-07

HSU-18HUN103/R2

Contents

Domestic air conditioner

Contents

1. Introduction ............................................................................................1

2. Specifications.........................................................................................7

3. Piping diagrams .....................................................................................9

4. Operation range....................................................................................10

6. Dimensional drawings...........................................................................

7. Center of gravity ...................................................................................

8. Service Diagnosis ...............................................................................

5. Circuit diagrams ..................................................................................

9. Perfomance Curves Diagram................................................................

Introduction

Domestic air conditioner

1 Introduction

1.1 Model name explanation

1 U 1 8 E R 4 E AA

The maximum combination number

Type of outdoor unit : U (normal type)

Nominal cooling capacity (18000BTU/h)

Platform of outdoor units:E Platform

District

Version number

Heat pump & R410A refrigerant

Apply toT1; 220~240V50HZ/1ph



  

  

           

              

                    

                  

   

  

          

          

     

           

           

        

                  

           

   



                

 

               

                   

       

                

    

               

       

                

          

                

     

             

               

   

                

                





  



                 

   

                 



                 





                 

         

                    

              



              

                



     



                  

                

        

              

     

                

       

             

               

 





 

               

            





 



  



                 

      

  

              

                

                 

 

        

               



        

               

    

       

                

            

                 

             

 

                  

         

                  

                



                 

  



                  

   

          



  



               

     

                

              

                   

            

   



                     

  

               

               

             



                  

            



  



                  

            

      

               

       

               

   

                  

  

      

            

               

  

                    

  

   

    



         

          



           

       



         



          



            

         

 

Specification

Domestic air conditioner

2 Specifications

NOMINAL DISTRIBUTION SYSTEM VOLTAGE

1/esahP

05zHycneuqerF

032VegatloV

NOMINAL CAPACITY and NOMINAL INPUT

gnitaehgnilooc

Capacity rated

5.2

5.3

0908105771h/utB

Power Consumption(Rated) KW

.213

W/WPOC/REE

h/³mlavomeRerutsioM 2.0*10

TECHNICAL SPECIFICATIONS-UNIT

Dimensions H*W*D mm 780×245×640

Packaged

Dimensions

H*W*D mm 920×351×720

7.14GK/thgieW

45GK/thgiewssorG

Sound level 55BderusseepdnuoS

ELECTRICAL SPECIFICATIONS

tnerrucgninnurlanimoN

Maximum running current

TECHNICAL SPECIFICATIONS-PARTS

gnitaehgnilooc

Compressor

rosserpmoCyratoRepyT

ASH201SV-C8LUledoM

0651WtuptuorotoM

Oil type 68HES-H or equivalent

58.1LemulovegrahcliO

Fan

naflaixAepyT

03WtuptuorotoM

7.13h/³m)hgih(etarwolfriA

860mpr)wol/hgih(deepS

Heat

exchanger

Type ML fin- 7HI-HX tube

23.1*28*2hctif*egats*woR

-3

Platform of indoor units G

gnitaehgnilooc

Platform of indoor units G

1.620

1.470

7.2

9.7

6.5

8.3

9.7

1.460

9.7

6.4

8.9

6.4

8.9

1.610

1.460

3.23

3.633.23

3.63

Specification

Domestic air conditioner

TECHNICAL SPECIFICATIONS-OTHERS

Refrigerant

circuit

Refrigerant type R410a

Refrigerant charge KG 1.35

Maximum allowable distance

between indoor an outdoor

m 25

Maximum allowable level difference m 5

Refrigerant control Capillary

Piping connections

(external diameter)

liquid mm 6.35

gas mm 12.7

drain mm 16

Heat insulation type Both liquid and Gas pipes

Max. piping Length m 25

Max. Level Difference m 5

Chargeless m 7

Amount of Additional Charge of Refrigerant g/m 20

Note: the data are based on the conditions shown in the table below

htgnelgnipiPgnitaehgnilooc

Indoor: 27 DB/19 WB

Outdoor: 35 DB/24 WB

Indoor:20 DB

Outdoor: 7 DB/6 WB

Conversation formulae

Kcal/h= KW×860

Btu/h= KW×3414

cfm=m³/min×35.3

International Protection degree

IP 24

Piping diagrams

Domestic air conditioner

3 Piping diagrams





 



Domestic air conditioner

5. Circuit Diagram

TO INDOOR UNIT

1(L)

2(N)

W(orBorBR)

0010560078

OUTDOOR DIAGRAM

COMPRESSOR

RED

BLACK

YELLOW/GREEN

BROWN

WHITE

BL:BLUE

FAN MOTOR

2.There are no dotted lines on cool only type.(marked

with @),Wire is connected from 4 (marked with

@@)on terminal block to 1.

TO INDOOR

FRESH AIR

MOTOR

4-way

valve

CAPACITOR

1.See above for wiring of heat pump type.

NOTE:

FRESH AIR

MOTOR

3.Some of cool only type terminal block only

have 1 2 and but no the parts .

4.The parts are optional.

Y/G

Circuit Diagram

Dimensinal drawings

Domestic air conditioner

6.Dimensional drawings

7.Center of gravity

780

245

780

245

12.7

unit:mm

Service diagnosis

Domestic air conditioner

8 Service Diagnosis

8.1 Caution for Diagnosis

The operation lamp flashes when any of the following errors is detected.

1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,

disabling equipment operation.

2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the

diagnostic procedure described in the following pages.

8.2 Parameter of primary electronic appliance

erutciPretemaraPemaNON

1 Compressor

Rated voltage:220-240V

Rated current:7.7A

Rated frequency:50 Hz

Resistance:2.06

2 Fan motor

Rated voltage:220-230V

Rated current:0.35 A

Rated frequency:50 Hz

3 4-way valve

Rated voltage:

Rated current:0. 1A

Rated frequency:

: K

220-240V

/60

2.085

Rated inductance

ResistanceRated

Service diagnosis

Domestic air conditioner

8.3 Problem Symptoms and Measures

Symptom Check Item Details of Measure

None of the units

operates

Check the power supply. Check to make sure that the rated voltage is supplied.

Check the indoor PCB Check to make sure that the indoor PCB is broken

Operation

sometimes stops.

Check the power supply.

A power failure of 2 to 10 cycles can stop air conditioner

operation.

Equipment

operates but

does not cool, or

does not heat

(only for heat

pump)

Check for faulty operation

of the electronic

expansion valve.

Set the units to cooling operation, and compare the

temperatures of the liquid side connection pipes of the

connection section among rooms to check the opening and

closing operation of the electronic expansion valves of the

individual units.

Diagnosis by service port

pressure and operating

current.

Check for insufficient gas.

Large operating

noise and

vibrations

Check the installation

condition.

Check to make sure that the required spaces for

installation (specified in the Technical Guide, etc.) are

provided.

Domestic air conditioner

8.4Codes and Description

8.4.1.Problem Symptoms and Measures

Symptom Check Item Details of Measure

None of the units

operates

Check the power supply.

Check to make sure that the rated voltage is

supplied.

Check the indoor PCB Check to make sure that the indoor PCB is broken

Equipment

operates but does

not cool, or does

not heat (only for

heat pump)

Diagnosis by service

port pressure and

operating current.

Check for insufficient gas.

Large operating

noise and

vibrations

Check the installation

condition.

Check to make sure that the required spaces for

installation (specified in the Technical Guide, etc.) are

provided.

8.4.2 Error Codes and Description indoor display

Code indication

Description

Reference

Page

indoor

Indoor Malfunction

E1 Room temperature sensor failure 19

91eruliafrosnesegnahcxe-taeH2E

02rorreMORPEEroodnI4E

12noitcnuflamrotomnafroodnI41E

The code indication that is listed above is the main fault

Troubleshooting

Caution Be sure to turn off power switch before connect or disconnect connector, or else parts damage

may be occurred.

8.4.2.1 Thermistor or Related Abnormality

Indoor Display E1: Room temperature sensor failure

E2: Heat-exchange sensor failure

Method of The temperatures detected by the thermistors are used to determine thermistor errors

Malfunction

Detection

Malfunction when the thermistor input is more than 4.92V or less than 0.08V during compressor

.noitareponoisiceD

Conditions

Note: The values vary slightly in some models

Supposed

Faulty connector connection

Causes

Faulty thermistor

Faulty PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector,

Seivice diagnosis

Method of

Malfunction

Detection

Malfunction

noisiceD

Conditions

Supposed

Method of

Malfunction

Detection

Malfunction

Detection

Conditions

Supposed

Causes

Troubleshooting

or else parts damage may be occurred.

Domestic air conditioner

Thermistor resistance check method:

Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester.

The relationship between normal temperature and resistance is shown in the value of indoor thermistor.

8.4.2.2 EEPROM abnormal

Indoor Display E4: indoor EEPROM error

Method of The Data detected by the EEPROM are used to determine MCU

Malfunction

Malfunction when the data of EEPROM is error or the EEPROM is damaged

Decision

Supposed

Faulty EEPROM data

Causes

Faulty EEPROM

Faulty PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector,

or parts damage may be occurred.

Thermistor resistance check

Is it normal?

Yes

Is it normal?

Check the connector connection.

Replace the thermistor

Replace the indoor unit PCB

Correct the connection

Replace the indoor or outdoor mainboard

Seivice diagnosis

Method of

Malfunction

Detection

Malfunction

noisiceD

Conditions

Supposed

Causes

Method of

Malfunction

Detection

Malfunction

Detection

Conditions

Supposed

Causes

Troubleshooting

Yes

Domestic air conditioner

8.4.2.3 Indoor DC fan motor malfunction

Indoor Display E14

Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine

Malfunction abnormal fan motor operation

Detection

When the detected rotation feedback signal don’t received in 2 minutes

Decision

Conditions

Operation halt due to breaking of wire inside the fan motor.

Causes

Fan motor overheat protection

Operation halt due to breaking of the fan motor lead wires

Detection error due to faulty indoor unit PCB

Troubleshooting

* Caution Be sure to turn off power switch before connect or disconnect connector,

else parts damage may be occurred.

Check whether terminals

on indoor

cb is well?

Electrify the machine again and turn it on in the cooling operation,

Measure voltage between the positions 1and 3 of Terminal CN5 on

the indoor PCB

the voltage is about 90-220vac

check whether motor can run

when turn on the unit

the indoor motor is damaged and need replace

Yes

Measure whether there is voltage pulse(0-5VDC)

between the positions middle wire and black wire

ermina

indoo

the indoor pcb is damaged and need replace

Pull out the terminals on the indoor

mainboard and reinsert them.

Yes

Is it ok?

Yes

Service diagnosis

Method of

Malfunction

Detection

Malfunction

noisiceD

Conditions

Supposed

Method of

Malfunction

Detection

Malfunction

Detection

Conditions

Supposed

Causes

Troubleshooting

Yes

Performance Curves Diagram

Domestic air conditioner

9 Performance Curves Diagram

9.1 Cooling capacity-temperature curves

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Haier 1U18BR4EAA User manual

Brand: Haier

Model: 1U18BR4EAA

Category: Split-system air conditioners

Type: User manual

Auto restart: The unit will automatically restart after a power outage.
Sleep mode: The unit will operate at a reduced noise level and energy consumption during sleep hours.
Turbo mode: The unit will operate at maximum capacity to quickly cool or heat a room.
Self-cleaning: The unit will automatically clean its evaporator coil to prevent the growth of mold and bacteria.

Download PDF

report

Haier 1U18BR4EAA User manual

Haier 1U18BR4EAA User manual

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