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Haier 1U18FE2ERA Service Manual

Manual is about: Wall Mounted Type DC Inverter FREE MATCH N-Series

Summary of 1U18FE2ERA

  • Page 1

    Service manaul wall mounted type dc inverter free match n-series as18nd1hra-white hsu18vhgl-g 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 ind...

  • Page 2: Contents

    Table of contents domestic air conditioner contents 1. Introduction ............................................................................................ 1 2. Features ................................................................................................ 7 3. Specifications ...........

  • Page 3: 1 Introduction

    Introduction domestic air conditioner 1 introduction 1.1 model name explanation a s 1 8 n d 1 h r a indoor unit type of indoor unit: s (wall-mounted) nominal cooling capacity (18000btu/h) version number heat pump & r410a refrigerant dc inverter apply tot1; 208~230v60hz/1ph 1 platform of indoor units...

  • Page 4

    Intuoduction 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

    Intuoduction 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

    Intuoduction 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

    Intuoduction 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

    Intuoduction 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.Features

    Specifications domestic air conditioner 2.Features 7 super quiet: lower noise operation condition a-pam dc inverter:with adoption of s-type,s-pam and phase control technology to works more stably at low-frequency,and is more energy-saving,mor powerful at high frequency. Long distance air supplying: ...

  • Page 10: 3 Specifications

    Specifications domestic air conditioner 3 specifications nominal distribution system voltage 1 / e s a h p 0 5 z h y c n e u q e r f 0 3 2 v e g a tl o v nominal capacity and nominal input cooling heating capacity rated btu/h 17000(4780-13300) 18000(5120-13990) power consumption(ra 5068 5222 btu ) d...

  • Page 11: 4．sensors List

    Specifications domestic air conditioner technical specifications-parts cooling heating fan n a f w o lf s s o r c e p y t 136.5 w t u p t u o r o t o m air flow rate(high) in³/h 31779 31779 speed(high/middle/low) rpm 950/850/750 900/800/700 heat exchanger type ml fin-φ7hi-hx tube 4 . 1 * 8 1 * 3 h c...

  • Page 12: 5．pinping Diagrams

    Piping diagrams domestic air conditioner 5．pinping diagrams 10

  • Page 13

    Connector wiring diagrams domestic air conditioner 6. Printed circuit board connector wiring diagram 11 connectors pcb(1) (control pcb) d a o l h ti w t c e n n o c r o t c e n n o c b c p s e ir e s 1 cn9 connector for fan motor 2 cn6 connector for heat exchanger thermistor and room temperature the...

  • Page 14

    Connector wiring diagrams domestic air conditioner 12 pcb(1) c23 cn21 cn7 cn14 cn6 cn52 cn34 cn9 cn5 cn27.

  • Page 15

    Connector wiring diagrams domestic air conditioner wiring diagrams 13 up-down stepmoter i o n g en e r a t io r y/ g c0n2 c0n3 dc fan motor m f u se 1 sw1 emergency switch receiver display cn7 t 3 . 1 5a /2 5 0v a c 80 120 1 (n) (c) 3 (l) 2 w b y/g y/g gnd cn14 ambient temp sensor piping temp sensor...

  • Page 16: 7.Funcitions And Control

    Functions and control domestic air conditioner 7.Funcitions and control 7.1 main functions and control specification 7.1.1 automatic operation when the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room tempe...

  • Page 17

    Functions and control domestic air conditioner 7.1.3 dehumidifying mode. * temperature control range: 60.8---86 f * temperature difference: 30.2/33.8°f control feature: send the dehumidifying signal to the outdoor system. When tr>ts+35.6°f , the compressor will be turned on, the indoor fan will oper...

  • Page 18

    Functions and control domestic air conditioner *indoor fan control manual control: you can choose high, medium, low and automatic speed control. Automatic: when tr when ts tr ts+35.6°f, medium speed. When tr> ts+35.6°f, low speed. When the airflow speed has no delay from the high to low switching, t...

  • Page 19

    Functions and control domestic air conditioner mode, the cooling strength/ mute function will be offered; if the system enters the heating mode, then the heating strength/ mute function will be offered; if the system enters the airflow mode, there will be no strength/ mute function. 7.1.6 mute opera...

  • Page 20

    Functions and control domestic air conditioner keys, the timing of the 8 hours dormancy will take the first timing as the start time, any presses on other keys will not affect the original timing. 2.4 indoor fan control under the dormant operation. If the indoor fan is at the high speed before the d...

  • Page 21

    Functions and control domestic air conditioner and will not be revealed. 7.1.13 abnormal operation of indoor system when the outdoor system operates, if the indoor system operation differs from the outdoor system, the abnormal operation malfunction will be reported. 10s after the report, the indoor ...

  • Page 22

    Functions and control domestic air conditioner according to the set mode and neglect the communication signals of the outdoor system. However, it has to send signals to the outdoor system. * quitting condition: this mode can be quitted after receiving the quitting signal from the remote control or u...

  • Page 23

    Functions and control domestic air conditioner 7.1.20 time cutting function: connect the test program terminal on the mainboard after connecting the system to the power circuit. The cpu of the main control will be 60 times faster. 7.2 value of thermistor room sensor and pipe sensor r25 =10k 3% b25 /...

  • Page 24

    Functions and control domestic air conditioner 35.6 29.2545 27.5519 25.9250 29.68 34.23 37.4 27.8708 26.2858 24.7686 29.71 34.20 39.2 26.5605 25.0851 23.6704 29.75 34.16 41 25.3193 23.9462 22.6273 29.79 34.12 42.8 24.1432 22.8656 21.6361 29.84 34.09 44.6 23.0284 21.8398 20.6939 29.88 34.05 46.4 21.9...

  • Page 25

    Functions and control domestic air conditioner 113 4.8400 4.5905 4.3500 29.32 34.59 114.8 4.6708 4.4252 4.1887 29.25 34.65 116.6 4.5083 4.2666 4.0342 29.17 34.72 118.4 4.3524 4.1145 3.8862 29.10 34.79 120.2 4.2026 3.9686 3.7443 29.03 34.86 122 4.0588 3.8287 3.6084 28.94 34.92 123.8 3.9206 3.6943 3.4...

  • Page 26

    Functions and control domestic air conditioner 190.4 1.2226 1.1113 1.0092 25.74 37.74 192.2 1.1880 1.0789 0.9789 25.65 37.83 194 1.1546 1.0476 0.9497 25.56 37.90 195.8 1.1223 1.0174 0.9215 25.45 37.99 197.6 1.0910 0.9882 0.8942 25.36 38.07 199.4 1.0607 0.9599 0.8679 25.27 38.16 201.2 1.0314 0.9326 0...

  • Page 27: 8 System Configuration

    System configuration domestic air conditioner 8 system configuration 8.1system configuration after the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation ...

  • Page 28

    Display board signal receiver hole cool display health display 4 2 3 1 5 dry display 6 ambient temp.Display when receiving the remote control signal, display the set temperature. 2 3 5 6 4 heat display 1 outlet horizontal flap display board (adjust up and down air flow don't adjust it manually) (adj...

  • Page 29

    Operation air flow direction adjustment press fan button. For each press, fan speed follows: remote controller: press button every time the button is pressed, temp.Setting increase 1 o c / 2 f, if kept depressed, it will increase rapidly every time the button is pressed, temp.Setting decrease 1 o c ...

  • Page 30

    Operation sleep operation 5.Fan speed in sleep mode when the unit is set to sleep mode, the fan speed will be set to low speed and it cannot be changed. Operation mode 1. In cool,dry mode sleep operation starts sleep operation stops sleep operation starts sleep operation stops approx.6hrs 1 hr 1 hr ...

  • Page 31

    Operation 1.After unit starts, select your desired operation mode. 2.Press timer button to change timer mode. Every time the button is pressed, display changes as follows: remote controller: blank timer on timer off timer on-off then select your desired timer mode (timer on or timer off or timer on-...

  • Page 32

    Maintenance setting of proper room temperature close doors and windows during operation if the unit is not to be used for a long time, turn off the power supply main switch. Use the timer effectively use the louvers effectively do not block the air inlet or outlet proper temperature during cooling o...

  • Page 33

    The power supply cord. 2. Do not install in the place where there is any possibility of inflammable gas leakage around the unit. 3.Do not get the unit exposed to vapor or oil steam. Cautions connect the earth cable. Earthing warning if something abnormal occurs immediately stop the operation button ...

  • Page 34

    Trouble shooting normal performance inspection noise is heard phenomenon cause or check points the system immediately. Odors are present mist or steam are multiple check poor cooling when unit is stopped, it won't restart elapsed to protect the system. When the electric plug is pulled out and reinse...

  • Page 35

    Drawing for the installation of indoor and outdoor units necessary tools for installation ● torque wrench ● (0.67 in,0.87in ,1.02in) nipper ● reamer ● hacksaw ● pipe cutter ● gas leakage detector or ● soap-and-water solution hole core drill ● flaring tool ● spanner(0.67,0.75 and 1.02in ) ● knife ● m...

  • Page 36

    Indoor unit make a hole of b mm / inches in diameter, slightly descending to outside the wall. ● install piping hole cover and seal it off with putty after installation ● when the mounting plate is first fixed 1. Carry out, based on the wall studs or lintels, a to be fixed against the wall, then tempor...

  • Page 37

    Outdoor unit indoor unit a b outdoor unit indoor unit a b a b outdoor unit indoor unit oil trap outdoor unit install according to the instructions on the 1st page of this manual when bending the interconnect tubing, ensure the radius is at least 1 1/4" to 1 3/4", 30mm to 40mm to ensure against crush...

  • Page 38

    Detach the service port’s cap of 1. 3-way valve, and the valve cap for 2-way valve and 3-way valve. Connect the service port to the low side of the gauge manifold open the handle on the low side of the gauge manifold and operate vacuum pump. 2. Vacuum the tubing for at least 15 minutes. The vacuum l...

  • Page 39: 9.Dimensional Drawings

    Seivice diagnosis domestic air conditioner 9.Dimensional drawings 10.Center of gravity 37 3.27 3.27 0.77 1.06 0.26 0.26 1.16 1.12 1.06 0.46 0.77 0.37.

  • Page 40: 11 Service Diagnosis

    Seivice diagnosis domestic air conditioner 11 service diagnosis 11.1 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 operatio...

  • Page 41

    Seivice diagnosis domestic air conditioner 11.4 error codes and description indoor display code indication fault description reference page indoor displaying panel code indication outdoor (led1 flash times) indoor and outdoor e7 15 communication fault between indoor and outdoor units page . Indoor m...

  • Page 42

    Seivice diagnosis domestic air conditioner 11.4.1 thermistor or related abnormality the temperatures detected by the thermistors are used to determine thermistor errors when the thermistor input is more than 4.92v or less than 0.08v during compressor operation. Note: the values vary slightly in some...

  • Page 43

    Seivice diagnosis domestic air conditioner indoor display e4: indoor eeprom error outdoor display f12: outdoor eeprom error; outdoor led1 flash 1 times method of malfunction detection malfunction detection conditions supposed causes troubleshooting the data detected by the eeprom are used to determi...

  • Page 44

    Seivice diagnosis domestic air conditioner 11.4.3 indoor fan motor malfunction 42 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 malfunction when the detected rotation feedback...

  • Page 45

    Seivice diagnosis domestic air conditioner 43 yes no yes is rotation number command pulse generated? Is rotation number command voltage dc1～6v generated? Yes yes no no yes replace indoor unit pcb replace fan motor replace indoor unit pcb replace indoor fan motor pcb no replace indoor unit pcb is mot...

  • Page 46

    Seivice diagnosis domestic air conditioner 44 11.4.4 outdoor dc fan motor fault check whether terminal on the outdoor mainboard is well inserted. Is it normal? Yes no reinsert the terminals electrify the machine again and turn it on in the cool state with the remote controller. Check whether motor c...

  • Page 47

    Seivice diagnosis domestic air conditioner 11.4.5 ipm protection electrify the machine again and turn it on with the remote controller,if malfunctions are reported before or upon the compressor being started up, ipm module is damaged and needs replacing. 1、the system may have been over or under char...

  • Page 48

    Seivice diagnosis domestic air conditioner 11.4.6 over-current of the compressor electrify the machine again and turn it on with the remote controller, if malfunctions are reported before or upon the compressor being started up, ipm module is damaged and needs replacing. Repair the power supply the ...

  • Page 49

    Seivice diagnosis domestic air conditioner 11.4.7 the communication fault between ipm and outdoor pcb 1) check whether terminal cn23 and cn24 on the outdoor mainboard cn10 and cn11 on ipm module 2) check whether the connected wire between ipm and outdoor are they good? Electrify the machine again an...

  • Page 50

    Seivice diagnosis domestic air conditioner 11.4.8 power supply over or under voltage fault electrify the machine again and turn it on with the remote controller. Check whether the compressor is started normally is it ok? Yes maybe there is some disturbance no no ~230 is ok? Yes yes this question may...

  • Page 51

    Seivice diagnosis domestic air conditioner 11.4.9 overheat protection for discharge temperature electrify the machine again and turn it on with the remote controller, then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit the temperature exceeds shortly ...

  • Page 52

    Seivice diagnosis domestic air conditioner 11.4.10 the communication fault between indoor and outdoor no （ a） yes no yes no yes restart the a/c and it becomes normally. If starting up normally, but malfunction occurs again after a while check whether the linking cable between the indoor and outdoor ...

  • Page 53

    Seivice diagnosis domestic air conditioner （ a） no yes yes check the indoor mainboard. No if the voltage is of a constant value of 0v dcto5v dc yes measure the voltage between jumpers 3 and 4 of ic1 on the indoor mainboard with a multimeter. No the outdoor mainboard is damaged; replace them with a n...

  • Page 54

    Circuit diagrams domestic air conditioner 11.4.11 loss of synchronism detection inverter side current detection is abnormal within 3 minutes after the machine is supplied with power and turned on with the remote controller, check whether the compressor can start up 1. The wiring of compressor is inc...

  • Page 55

    Circuit diagrams domestic air conditioner 11.4.12 high work-intense protection electrify the machine again and turn it on with the remote controller, check whether the wind temperature is below 149°f the malfunction is reported after the machine has run for some time? 1 、 check room temperature and ...

  • Page 56: 12. Circuit Diagrams

    Circuit diagrams domestic air conditioner 12. Circuit diagrams 54 +5v +5v scl sda eeprom +5v reset +5v ir srck rck ser com3 com2 gnd +5v +12v a b c d +12v buzzer +5v switch +5v ser srck gg rck 5v gnd ir zj/ss digh digl display-0011800161 display-0011800184/0033 12v mode digh digl ser srck rck lstep_...

  • Page 57: Sincere Forever

    Circuit diagrams 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: zou na liu xiang he shiquang wu hongjin.

  • Page 58: Wall Mounted Type

    Service manaul wall mounted type dc inverter free match n-series 1u18fe2era hsu18vhgl-w 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 individua...

  • Page 59: Contents

    Contents domestic air conditioner contents 1. Introduction ............................................................................................1 2. Specifications.........................................................................................7 3. Sensors list ..........................

  • Page 60: 1 Introduction

    Introduction domestic air conditioner 1 introduction 1.1 model name explanation 1 u 1 8 f e 2 e a r the maximum combination number type of outdoor unit : u (normal type) nominal cooling capacity (18000btu/h) platform of outdoor units: f (f platform) europe version number heat pump & r410a refrigeran...

  • Page 61

    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 62

    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 63

    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 64

    Introduction domestic air conditioner do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustible gas leaks and remains around the unit, it can cause a fire. Be sure to install the packing and seal on the installation frame properly. If the packing...

  • Page 65

    Introduction domestic air conditioner check the grounding, and repair it if the equipment is not properly grounded. Improper grounding can cause an electrical shock. Be sure to measure the insulation resistance after the repair, and make sure that the resistance is 1 m ohm or higher. Faulty insulati...

  • Page 66: 2 Specifications

    Specification domestic air conditioner 2 specifications nominal distribution system voltage 1 / e s a h p 60 hz 0 3 2 v e g a tl o v nominal capacity and nominal input g n it a e h g n il o o c capacity rated btu/h power consumption(rated) btu 38 btu / btu p o c / r e e annual energy consumption btu...

  • Page 67: 3．sensors List

    Specification domestic air conditioner technical specifications-others refrigerant circuit refrigerant type r410a refrigerant charge lb 2.86 maximum allowable distance between indoor an outdoor in 82 maximum allowable level difference in 49.2 refrigerant control capillary piping connections (externa...

  • Page 68: 4．pinping Diagrams

    Pinping diagrams domestic air conditioner 4．pinping diagrams 9.

  • Page 69: 5．operation Range

    Operation range domestic air conditioner 5．operation range 10 f f 68 86 104 122 64.4 109.4 114.8 50 68 86 60.8 73.4 89.6 50 68 86 14 19.4 23 32 41 50 59 68 77 75.2 °f °f 16.4in in.

  • Page 70

    Wiring diagrams domestic air conditioner 6. Printed circuit board connector wiring diagram connectors pcb(1) (control pcb) pcb(2) (module pcb) note: other designations pcb(1) (control pcb) 1) fuse 1, (25a,250vac) fuse 2(1a,250vac) 2)led 1 keep light representative normal ,if keep flash interval repr...

  • Page 71

    Connector wiring diagram domestic air conditioner 12 pcb(1) cn36 cn17 cn28 cn23 cn18 cn16 cn9 cn8 cn10 cn3 cn11 cn15 cn24 cn25 cn19 cn20 cn21 cn1 cn2 cn47 cn49 cn45 cn11.

  • Page 72

    Connector wiring diagram domestic air conditioner 13 pcb(2) cn8 cn5 cn6 cn7 cn9 cn4 cn3 cn10 cn11 cn1 cn2.

  • Page 73: Wiring Diagrams

    Functions and control domestic air conditioner wiring diagrams 14 ac-n out cn9 cn10 ac-l out cn11 4-way valve m cn22 cn15白 valve a cn43 ac fan m ac fan cn8 pe p o w er w y/g cn36 comb coma n r cn1 cn2 ac-n ac-l fuse1 t25a 250vac cn24 cn23 module com module power t o i n d o o r u n i t cn3 cn10 b bl...

  • Page 74: 7. Functions And Control

    Functions and control domestic air conditioner 7. Functions and control 7.1 main functions and control specification 7.1.1 the operation frequency of outdoor unit and its control 7.1.1.1 the operation frequency control of compressor the operation frequency scope of compressor： mode minimun operation...

  • Page 75

    Functions and control domestic air conditioner cooling/dehumidification mode: serial no. Temperature scope frequency limitation 1 wh_f max_hz1 46hz 2 wh_f max_hz2 72hz 3 wh_f max_hz3 80hz 4 wh_f max_hz4 65hz 5 wh_f≧118.4 max_hz5 46hz remarks: the above are not only the maximum frequency limitations ...

  • Page 76

    Functions and control domestic air conditioner 7.1.2 the outdoor fan control (exchange fan) when the fan is changed among every airflow speed (including stop blowing), in order to avoid the airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds, and then it can b...

  • Page 77

    Functions and control 1 8 domestic air conditioner ttc（°f） abnormal stop 230 decreasing the frequency rapidly（1hz/second） 215.6 decreasing the frequency slowly (1hz/10seconds) 208.4 the frequency doesn’t change. 199.4 increasing the frequency (1hz/10second) 194 increasing the frequency（1hz/1second） ...

  • Page 78

    Functions and control domestic air conditioner during the starting process of the compressor, if the ac current is greater than 7a, the frequency of the compressor increases at the prohibited speed. During the starting process of the compressor, if the ac current is greater than 6.5a, the frequency ...

  • Page 79

    Functions and control domestic air conditioner when ice_temp_3〈tpg_indoor〈ice_temp_3+37.4°f , the frequency of the compressor increases at the speed of 1hz/10seconds. For example, tpg_indoor≤32°f last for 2 minutes, and then the outdoor unit will stop, and report underload malfunction, but don’t sen...

  • Page 80

    Functions and control domestic air conditioner 7.2 value of thermistor ambient sensor, defrosting sensor, pipe sensor r77°f=10kΩ±3% b77°f/122°f=3700k±3% 21 temp.(( °f )) max.(k ) normal(k ) min.(k ) tolerance( °f) -22 165.2170 147.9497 132.3678 28.51 35.15 -20.2 155.5754 139.5600 125.0806 28.53 35.1...

  • Page 81

    Functions and control domestic air conditioner 35.6 29.2545 27.5519 25.9250 29.68 34.23 37.4 27.8708 26.2858 24.7686 29.71 34.20 39.2 26.5605 25.0851 23.6704 29.75 34.16 41 25.3193 23.9462 22.6273 29.79 34.12 42.8 24.1432 22.8656 21.6361 29.84 34.09 44.6 23.0284 21.8398 20.6939 29.88 34.05 46.4 21.9...

  • Page 82

    Functions and control domestic air conditioner 113 4.8400 4.5905 4.3500 29.32 34.59 114.8 4.6708 4.4252 4.1887 29.25 34.65 116.6 4.5083 4.2666 4.0342 29.17 34.72 118.4 4.3524 4.1145 3.8862 29.10 34.79 120.2 4.2026 3.9686 3.7443 29.03 34.86 122 4.0588 3.8287 3.6084 28.94 34.92 123.8 3.9206 3.6943 3.4...

  • Page 83

    Functions and control domestic air conditioner 190.4 1.2226 1.1113 1.0092 25.74 37.74 192.2 1.1880 1.0789 0.9789 25.65 37.83 194 1.1546 1.0476 0.9497 25.56 37.90 195.8 1.1223 1.0174 0.9215 25.45 37.99 197.6 1.0910 0.9882 0.8942 25.36 38.07 199.4 1.0607 0.9599 0.8679 25.27 38.16 201.2 1.0314 0.9326 0...

  • Page 84

    Functions and control domestic air conditioner discharging sensor r176 f ° =50kΩ±3% b77/176°f=4450k±3% temp.(( °f)) max.(kΩ) normal(kΩ) min.(kΩ) tolerance( ) -22 14646.0505 12061.7438 9924.4999 26.67 36.41 -20.2 13654.1707 11267.8730 9290.2526 26.69 36.39 -18.4 12735.8378 10531.3695 8700.6388 26.73 ...

  • Page 85

    Functions and control domestic air conditioner 50 1236.4792 1094.3200 967.6334 27.75 35.80 51.8 1171.0715 1038.0743 919.3533 27.77 35.76 53.6 1109.4661 985.0146 873.7359 27.81 35.74 55.4 1051.4226 934.9440 830.6210 27.84 35.73 57.2 996.7169 887.6792 789.8583 27.88 35.71 59 945.1404 843.0486 751.3077...

  • Page 86

    Functions and control domestic air conditioner 131 140.7403 132.6980 125.0027 29.41 34.48 132.8 134.8559 127.3081 120.0746 29.44 34.45 134.6 129.2457 122.1630 115.3645 29.48 34.41 136.4 123.8956 117.2504 110.8618 29.53 34.38 138.2 118.7926 112.5589 106.5564 29.57 34.34 140 113.9241 108.0776 102.4388...

  • Page 87

    Functions and control domestic air conditioner 212 26.1569 24.8685 23.6222 29.17 34.74 213.8 25.3290 24.0574 22.8291 29.10 34.79 215.6 24.5311 23.2765 22.0662 29.03 34.86 217.4 23.7620 22.5245 21.3323 28.96 34.93 219.2 23.0205 21.8002 20.6261 28.89 34.99 221 22.3055 21.1025 19.9465 28.81 35.06 222.8...

  • Page 88: 8.Dimensional Drawings

    Dimensinal drawings domestic air conditioner 8.Dimensional drawings 9.Center of gravity 29 2.66 2.85 2.56 0.94 0.94 2.66 12.7 3/4 2.66 0.94 2.26 0.24 0.18 0.22 0.84 1.00 0.39.

  • Page 89

    Drawing for the installation of indoor and outdoor units necessary tools for installation ● torque wrench ● (0.67 in,0.87in ,1.02in) nipper ● reamer ● hacksaw ● pipe cutter ● gas leakage detector or ● soap-and-water solution hole core drill ● flaring tool ● spanner(0.67,0.75 and 1.02in ) ● knife ● m...

  • Page 90

    Indoor unit make a hole of b mm / inches in diameter, slightly descending to outside the wall. ● install piping hole cover and seal it off with putty after installation ● when the mounting plate is first fixed 1. Carry out, based on the wall studs or lintels, a to be fixed against the wall, then tempor...

  • Page 91

    Outdoor unit indoor unit a b outdoor unit indoor unit a b a b outdoor unit indoor unit oil trap outdoor unit install according to the instructions on the 1st page of this manual when bending the interconnect tubing, ensure the radius is at least 1 1/4" to 1 3/4", 30mm to 40mm to ensure against crush...

  • Page 92

    Detach the service port’s cap of 1. 3-way valve, and the valve cap for 2-way valve and 3-way valve. Connect the service port to the low side of the gauge manifold open the handle on the low side of the gauge manifold and operate vacuum pump. 2. Vacuum the tubing for at least 15 minutes. The vacuum l...

  • Page 93

    Connector wiring diagram domestic air conditioner 11.Service diagnosis 11.1 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 op...

  • Page 94

    Connector wiring diagram domestic air conditioner 11.3.Problem symptoms and measures symptom check item details of measure check the power supply. Check to make sure that the rated voltage is supplied. None of the units operates check the indoor pcb check to make sure that the indoor pcb is broken o...

  • Page 95

    Seivice diagnosis domestic air conditioner 11.4 error codes and description indoor display code indication fault description reference page indoor displaying panel code indication outdoor (led1 flash times) indoor and outdoor e7 15 communication fault between indoor and outdoor units page . Indoor m...

  • Page 96

    Seivice diagnosis domestic air conditioner 11.4.1 thermistor or related abnormality the temperatures detected by the thermistors are used to determine thermistor errors when the thermistor input is more than 4.92v or less than 0.08v during compressor operation. Note: the values vary slightly in some...

  • Page 97

    Seivice diagnosis domestic air conditioner indoor display e4: indoor eeprom error outdoor display f12: outdoor eeprom error; outdoor led1 flash 1 times method of malfunction detection malfunction detection conditions supposed causes troubleshooting the data detected by the eeprom are used to determi...

  • Page 98

    Seivice diagnosis domestic air conditioner 11.4.3 indoor 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 malfunction when the detected rotation feedback si...

  • Page 99

    Seivice diagnosis domestic air conditioner yes no yes is rotation number command pulse generated? Is rotation number command voltage dc1～6v generated? Yes yes no no yes replace indoor unit pcb replace fan motor replace indoor unit pcb replace indoor fan motor pcb no replace indoor unit pcb is motor ...

  • Page 100

    Seivice diagnosis domestic air conditioner 11.4.4 outdoor dc fan motor fault check whether terminal on the outdoor mainboard is well inserted. Is it normal? Yes no reinsert the terminals electrify the machine again and turn it on in the cool state with the remote controller. Check whether motor can ...

  • Page 101

    Seivice diagnosis domestic air conditioner 11.4.5 ipm protection electrify the machine again and turn it on with the remote controller,if malfunctions are reported before or upon the compressor being started up, ipm module is damaged and needs replacing. 1、the system may have been over or under char...

  • Page 102

    Seivice diagnosis domestic air conditioner 11.4.6 over-current of the compressor electrify the machine again and turn it on with the remote controller, if malfunctions are reported before or upon the compressor being started up, ipm module is damaged and needs replacing. Repair the power supply the ...

  • Page 103

    Seivice diagnosis domestic air conditioner 11.4.7 the communication fault between ipm and outdoor pcb 1) check whether terminal cn23 and cn24 on the outdoor mainboard cn10 and cn11 on ipm module 2) check whether the connected wire between ipm and outdoor are they good? Electrify the machine again an...

  • Page 104

    Seivice diagnosis domestic air conditioner 11.4.8 power supply over or under voltage fault electrify the machine again and turn it on with the remote controller. Check whether the compressor is started normally is it ok? Yes maybe there is some disturbance no no ~230 is ok? Yes yes this question may...

  • Page 105

    Seivice diagnosis domestic air conditioner 11.4.9 overheat protection for discharge temperature electrify the machine again and turn it on with the remote controller, then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit the temperature exceeds shortly ...

  • Page 106

    Seivice diagnosis domestic air conditioner 11.4.10 the communication fault between indoor and outdoor no （ a） yes no yes no yes restart the a/c and it becomes normally. If starting up normally, but malfunction occurs again after a while check whether the linking cable between the indoor and outdoor ...

  • Page 107

    Seivice diagnosis domestic air conditioner （ a） no yes check the indoor mainboard. No if the voltage is of a constant value of 0v dcto5v dc yes measure the voltage between jumpers 3 and 4 of ic1 on the indoor mainboard with a multimeter. No the outdoor mainboard is damaged; replace them with a new o...

  • Page 108

    Circuit diagrams domestic air conditioner 11.4.11 loss of synchronism detection inverter side current detection is abnormal within 3 minutes after the machine is supplied with power and turned on with the remote controller, check whether the compressor can start up 1. The wiring of compressor is inc...

  • Page 109

    Circuit diagrams domestic air conditioner 11.4.12 high work-intense protection electrify the machine again and turn it on with the remote controller, check whether the wind temperature is below 149°f the malfunction is reported after the machine has run for some time? 1 、 check room temperature and ...

  • Page 110

    Sound level domestic air conditioner 12.Performence and cerves diagrams 12.1 cooling capacity-temperature curves cooling value-temerature table ) % 6 4 y ti d i m u h (. P m e t r o o d t u o . P m e t r o o d n i db/wb 64.4 °f 68 °f 77 °f 89.6 °f 95 °f 104 °f 109.4 °f 114.8 °f 64.4/53.6 °f 2443 241...

  • Page 111

    Sound level domestic air conditioner 12.2 cooling power consumption value- temperature curves power consumption value-temp.Table ) % 6 4 y ti d i m u h (. P m e t r o o d t u o . P m e t r o o d n i db/wb 64.4°f 68°f 77°f 89.6°f 95°f 104°f 109.4°f 114.8°f 64.4/53.6°f 429 432 1138 1186 1220 1301 1227...

  • Page 112

    Sound level domestic air conditioner 12.3 cooling discharge pressure curves cooling discharge pressure.Table outdoor temp. (humidity 46%) indoor temp. Db/wb 60.8°f 66.2°f 71.6°f 59°f 2421 2504 2588 77°f 3239 3273 3339 86°f 3239 3306 3339 95°f 3273 3339 3439 104°f 3306 3473 3473 113°f 2554 2554 2652 ...

  • Page 113

    Sound level domestic air conditioner 12.4 cooling suction pressure curves cooling suction pressure.Table outdoor temp. (humidity 46%) indoor temp. Db/wb 60.8°f 66.2°f 71.6°f 59°f 660 683 706 77°f 883 893 911 86°f 883 902 911 95°f 893 911 938 104°f 902 947 947 113°f 696 696 723 350 450 550 650 750 85...

  • Page 114

    Sound level domestic air conditioner 12.5 heating capacity-temperature curves heating capacity and indoor/outdoor temp.Table ) % 6 4 y ti d i m u h (. P m e t r o o d n i . P m e t r o o d t u o db/wb 59°f 68°f 77°f 5°f 2338 1776 1905 23°f 3594 3286 3031 41°f 4676 4240 3940 44.6/42.8°f 4473 4167 377...

  • Page 115

    Sound level domestic air conditioner 12.6 heating power consumption value- temperature curves power consumption value-temp.Table ) % 6 4 y ti d i m u h (. P m e t r o o d n i . P m e t r o o d t u o db/wb 59°f 68°f 77°f 5°f 881 949 1037 23°f 1057 1044 1261 41°f 1193 1356 1437 44.6/42.8°f 1094 1204 1...

  • Page 116

    Sound level domestic air conditioner 12.7 heating discharge pressure curves heating discharge pressure.Table outdoor temp. (humidity 46%) indoor temp. Db/wb 59°f 68°f 77°f 5°f 2941 3069 3165 14°f 3005 3101 3197 23°f 3053 3133 3229 32°f 3101 3165 3261 41°f 3165 3197 3293 50°f 3062 3154 3200 59°f 2567...

  • Page 117

    Sound level domestic air conditioner 12.8 heating suction pressure curves heating suction pressure.Table outdoor temp. (humidity 46%) indoor temp. Db/wb 59°f 68°f 77°f 5°f 743 775 799 14°f 759 783 808 23°f 771 791 816 50°f 783 799 824 41°f 799 808 832 50°f 774 797 808 59°f 649 668 674 68°f 621 633 6...

  • Page 118: 13.Sound Level

    Sound level domestic air conditioner 13.Sound level model sound power level(indoor unit) sound power level (outdoor unit) (cooling/heating) 230v,60hz measuring location of microphone cooling/heating 1u12be2era 62 / 59 68 86 104 122 140 158 176 68 86 104 122 140 158 176.

  • Page 119: 14 Circuit Diagrams

    Circuit diagrams domestic air conditioner 14 circuit diagrams 14.1 outdoor unit control board circuit diagrams 1 3 gnd 4 gnd 3 gnd 2 gnd 1 vcc 8 gnd 7 scl 6 sda 5 ic6 at24c02b 1 cn2 ac-l 1 cn1 ac-n black white fuse1 t25a 250vac rv1 s14k350 r1 1m r12 100/1w cx1 225/275v l1 8mh/10a rv2 s14k350 rv3 s14...

  • Page 120

    Circuit diagrams domestic air conditioner 14.2 module board circuit diagram 61 1 2 3 4 a b c d 4 3 2 1 d c b a c0 09 47 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 6...

  • Page 121: Sincere Forever

    Circuit diagrams 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: zou na liu xiang he shiquan wu hongjin.