Haier 1U24GR4EAA Service Manual

Manual is about: Wall Mounted Type ON/OFF

Summary of 1U24GR4EAA

  • Page 1

    Service manual wall mounted type on/off 1u24gr4eaa model 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...

  • Page 2: Contents

    Contents domestic air conditioner contents 1. Introduction ............................................................................................1 2. Specifications.........................................................................................7 3. Piping diagrams .......................

  • Page 3: 1 Introduction

    Introduction domestic air conditioner 1 introduction 1.1 model name explanation 1 u 2 4 g r 4 e a a the maximum combination number type of outdoor unit : u (normal type) nominal cooling capacity (24000btu/h) platform of outdoor units:g platform version number heat pump & r410a refrigerant ac apply t...

  • Page 4

    Introduction domestic air conditioner 1.2 safety cautions be sure to read the following safety cautions before conducting repair work. The caution items are classified into “warning” and “caution”. The “warning” items are especially important since they can lead to death or serious injury if they ar...

  • Page 5

    Introduction domestic air conditioner warning do not repair the electrical components with wet hands . Working on the equipment with wet hands can cause an electrical shock do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock. Be sure to prov...

  • Page 6

    Introduction domestic air conditioner warning be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient...

  • Page 7

    Introduction domestic air conditioner caution installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site, to prevent electrical shocks. Do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustib...

  • Page 8

    Introduction domestic air conditioner caution check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the...

  • Page 9: 2 Specifications

    Specification domestic air conditioner 2 specifications technical specifications-parts g n it a e h g n il o o c compressor r o s s e r p m o c y r a t o r e p y t 5vs280eza21 l e d o m 0 26 2 w t u p t u o r o t o m oil type fv50s or equivalent 5 7 . 0 l e m u l o v e g r a h c li o fan n a f l a i...

  • Page 10

    Specification domestic air conditioner technical specifications-others refrigerant circuit refrigerant type r410a refrigerant charge kg 1.7 maximum allowable distance between indoor an outdoor m 25 maximum allowable level difference m 5 refrigerant control capillary piping connections (external diam...

  • Page 11: ˊpiping Diagrams

    Piping diagrams domestic air conditioner 3 ˊpiping diagrams 9.

  • Page 12: ˊoperation Range

    Operation range domestic air conditioner 4 ˊoperation range 10

  • Page 13

    Domestic air conditioner 5 circuit diagrams 11 circuit diagrams 您正在使用 zwcad 2008i 试用版 详情请查阅www.Zwcad.Com 1.The parts ① are optional. Note:.

  • Page 14: 6.Dimensional Drawings

    Dimensinal drawings domestic air conditioner 6.Dimensional drawings 7.Center of gravity 12 860 730 308 308 860 255.2 730 860 308 15.88 920 5 8 unit:mm unit:mm.

  • Page 15: 8 Service Diagnosis

    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....

  • Page 16

    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...

  • Page 17

    Domestic air conditioner code indication description reference page indoor indoor malfunction 5 1 e r u li a f r o s n e s e r u t a r e p m e t m o o r 1 e 5 1 e r u li a f r o s n e s e g n a h c x e -t a e h 2 e 6 1 r o rr e m o r p e e r o o d n i 4 e 7 1 n o it c n u fl a m r o t o m n a f r o ...

  • Page 18

    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...

  • Page 19

    Domestic air conditioner 8.4.2.3 indoor ac fan motor malfunction indoor display e14 the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation when the detected rotation feedback signal don’t received in 2 minutes operation halt due to bre...

  • Page 20

    Performance curves diagram domestic air conditioner 9 performance curves diagram 9.1 cooling capacity-temperature curves 18 indoor tem p. Db/w b 18℃ 20℃ 25℃ 32℃ 35℃ 40℃ 43℃ 46℃ 18/12℃ 6176 6066 5859 5514 5377 5073 4825 4536 18/14℃ 6617 6410 6273 5928 5688 5308 5101 4880 20/15℃ 6700 6617 6479 6273 60...

  • Page 21

    Domestic air conditioner 9.2 heating capacity-temp.Curves 19 performance curves diagram outdoor tem p. Db/w b 15℃ 20℃ 25℃ -15℃ 4034 3586 3148 -5℃ 6270 5678 4963 5℃ 7471 6804 6083 7/6℃ 8218 7204 6564 15℃ 8538 7604 6670 20℃ 8805 7738 6964 25℃ 9125 7871 7257 indoor tem p.(hum idity 46% ) heating capaci...

  • Page 22

    Domestic air conditioner 20 9.3 coolin g power consumption-temp.Curves performance curves diagram indoor tem p. Db/w b 18℃ 20℃ 25℃ 32℃ 35℃ 40℃ 43℃ 46℃ 18/12℃ 1707 1801 1895 1989 2070 2198 2305 2420 18/14℃ 1776 1857 1942 2049 2134 2262 2382 2471 20/15℃ 1835 1934 2006 2113 2198 2326 2433 2514 22/16℃ 1...

  • Page 23

    Domestic air conditioner 9.4 heating power consumption-temp.Curves 21 performance curves diagram outdoor tem p. Db/w b 15℃ 20℃ 25℃ -15℃ 1464 1574 1709 -5℃ 1793 1914 2035 5℃ 1962 2159 2266 7/6℃ 2050 2251 2452 15℃ 2086 2269 2507 20℃ 2123 2306 2555 25℃ 2159 2343 2621 indoor tem p.(hum idity 46% ) power...

  • Page 24: Sincere Forever

    Domestic air conditioner sincere forever haier group haier industrial park, no.1, haier road 266101, qingdao, china_ http //www.Haier.Com edited by : signed by : approved by: wang fang yang xiaodong he shiquan wu hongjin.