![Haier HCFU-18CF03 [66/91] Diagnostic information troubleshooting](/img/pdf.png)
Haier HCFU-18CF03 [66/91] Diagnostic information troubleshooting
![Haier HCFU-28CF03 [66/91] Diagnostic information troubleshooting](/views2/1807718/page66/bg42.png)
Commercial Air Conditioner Model: HCFU-18/28CF03
HCFU-18/28HF03
66
10. Diagnostic information (troubleshooting)
10.1 System failure
If the refrigerant in the system cannot flow fluently or the airflow circles more slowly, please check due
to the following procedures.
Cooling:
solenoid valve failure
if the cooling load too large
if set temp. is proper
compressor failure
refrigerant flow
malfunction
bad cooling
lack of refrigerant
4-way valve failure
check the evaluation of
cooling load
change 4-way valve
recharge refrigerant
change the solenoid valve
change the set temp.
change compressor
bad ventilation
if fan is set as low speed set the fan as med speed
if air inlet filter is blocked clean the filter
if the refrigerant pipe between
I.D and O.D is insulated
insulate the thick pipe
and slim pipe separately
Figure 1ǂ
Содержание
- Commercial air conditioning 1
- Features 1
- Hcfu 18cf03 1
- Hcfu 18hf03 1
- Hcfu 28cf03 1
- Hcfu 28hf03 1
- Service manual 1
- Contents 2
- Brief introduction for t1 t2 t3 working condition 3
- Commercial air conditioner 3
- Description of products features 3
- H cfu 18 h f 03 3
- Operating range of air conditioners 3
- Products code explanation 3
- Automatically control of airflow direction for fast temperature adjusting 4
- Central control function if connected with a central controller 4
- Commercial air conditioner 4
- Decent convertible indoor unit 4
- Flexible and easy installation 4
- Large angle air supplying 4
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 4
- New design of long piping length and large drop 4
- Optional installation mode 4
- Optional safety devices and much more precision control device 4
- Outdoor uni 4
- Product features 4
- Silent operation 4
- Space saving design 4
- Commercial air conditioner 5
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 5
- Specification 5
- 245 640 6
- 340 710 6
- 655 199 6
- 750 300 6
- Automatic 6
- Axial 1 6
- Capillary tube 6
- Commercial air conditioner 6
- Hard startup 6
- Hcfu 18hf03 white 6
- Inner grooved 9 2 6
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 6
- Ph 220 230v 50hz 6
- Remote 6
- Rotary 6
- Shw33tc4 u 6
- Suniso 4gsi 6
- 310 730 1005 425 815 7
- 770 300 1320 715 235 7
- Automatic 7
- Axial 1 7
- Capillary tube 7
- Commercial air conditioner 7
- Hard startup 7
- Hcfu 28cf03 white 7
- Inner grooved 9 2 7
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 7
- Ph 220 230v 50hz 7
- Remote 7
- Rotary 7
- Suniso 4gsi 7
- Thu33wc6 u 7
- 310 730 1005 425 815 8
- 770 300 1320 715 235 8
- Automatic 8
- Axial 1 8
- Capillary tube 8
- Commercial air conditioner 8
- Hard startup 8
- Hcfu 28hf03 white 8
- Inner grooved 9 2 8
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 8
- Ph 220 230v 50hz 8
- Remote 8
- Rotary 8
- Suniso 4gsi 8
- Thu33wc6 u 8
- Commercial air conditioner 9
- Installation state the unit should be placed on the flat floor or be mounted in horizontal direction testing method 9
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 9
- Commercial air conditioner 10
- Safety precaution of indoor and outdoor 10
- Commercial air conditioner 11
- Commercial air conditioner 12
- Hcfu 18 12
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 12
- Net dimension 12
- Commercial air conditioner 13
- Hcfu 28 13
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 13
- Installation instructions 14
- Installation of indoor unit 14
- Commercial air conditioner 15
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 15
- Commercial air conditioner 16
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 16
- Commercial air conditioner 17
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 17
- Commercial air conditioner 18
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 18
- Commercial air conditioner 19
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 19
- Commercial air conditioner 20
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 20
- Commercial air conditioner 21
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 21
- Commercial air conditioner 22
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 22
- Commercial air conditioner 23
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 23
- Commercial air conditioner 24
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 24
- Commercial air conditioner 25
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 25
- Commercial air conditioner 26
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 26
- Commercial air conditioner 27
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 27
- Commercial air conditioner 28
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 28
- Commercial air conditioner 29
- Commercial air conditioner 30
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 30
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 31
- Parts and functions 31
- Commercial air conditioner 33
- Remote controller functions 33
- Commercial air conditioner 34
- Commercial air conditioner 35
- Commercial air conditioner 36
- Commercial air conditioner 37
- Commercial air conditioner 38
- Commercial air conditioner 39
- Commercial air conditioner 40
- Commercial air conditioner 41
- Commercial air conditioner 42
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 42
- Commercial air conditioner 43
- Wired controller yr e12 44
- Commercial air conditioner 49
- G preset 49
- H outdoor total capacity actual value decimal 49
- How to change the function switches no type state of switch function description 49
- In check mode press check to quit the check mode and go into normal running in check mode press check to quit the check mode and go into normal running mode 49
- Note 1 the switches in grey can be operated after opening the cover of wired controller 2 switches or jumper wire must be adjusted when the wired controller is powered off if the wired controller is powered on the above operations will be invalid 3 shorten time function in normal operation d1 is in short circuit it will enter shorten time mode and the time will be shortened in the proportion of 60 1 in shorten time mode led will flash at the frequency of 0 second cut off d1 it will quit the shorten time mode and return to the normal operation mode 4 compulsorily defrost in heating mode 30 and in high fan speed d2 is in short circuit it will enter compulsorily defrost mode cut off d2 it will quit it is always be used when in testing to see if the defrost function is good 5 lock function 49
- A one wired controller can control max up to 16 sets of indoor units and 3 55
- B one wired controller controls one indoor unit and the indoor unit connects 55
- C two wired controllers control one indoor unit the wired controller 55
- Electrical functions of wired controller 55
- Function difference between master wired controller and slave one 55
- Function difference between simple wired controller and the standard one 55
- Indoor unit connected with wired controller directly the others connect with 55
- Pieces of polar wire must connect the wired controller and the master unit the 55
- The master unit through 2 pieces of polar wire 55
- There are three methods to connection wired controller and the indoor units 55
- Wiring connections of wired controller 55
- With the wired controller through 3 pieces of polar wire 55
- Accessories 3 core terminal 1 white 2 yellow 3 red is connected with the 56
- All connected through 3 pieces of polar wire 56
- Communication wiring 56
- Connected with indoor unit is called master one the other is called slave one 56
- Master wired controller and indoor unit master and slave wired controllers are 56
- One side of the shielded sheet of communication wire must be earthed 56
- Please distribute wiring according to below table 56
- Terminal a b c of wired controller respectively 56
- The communication wiring is 4 meter long if the actual length is more than it 56
- The wired controller is equipped with special communication wiring in the 56
- Commercial air conditioner 57
- Refrigerant diagram 57
- Commercial air conditioner 58
- Commercial air conditioner 59
- Blowing 60
- Commercial air conditioner 60
- Control features 60
- Cooling 60
- Cooling blowing 60
- Cooling ts 3 60
- Electrical control functions 60
- Heating 60
- Room temperature rising 60
- Area a 62
- Area a ts 62
- Area b area b 62
- Area c 62
- Commercial air conditioner 62
- Room temperature falling 62
- Room temperature rising 62
- Commercial air conditioner 63
- Commercial air conditioner 64
- Commercial air conditioner 65
- Defrost operation flow chart 65
- Or off 65
- Bad cooling 66
- Commercial air conditioner 66
- Cooling 66
- Diagnostic information troubleshooting 66
- Figure 1 66
- If the refrigerant in the system cannot flow fluently or the airflow circles more slowly please check due 66
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 66
- System failure 66
- To the following procedures 66
- Commercial air conditioner 67
- Failure code the remote receiver wired controller and indoor pcb indicator all can indicate the failure code 67
- Failure code with wired controller yr e12 67
- For hcfu 18 67
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 67
- Commercial air conditioner 68
- Communication failure between operation panel and indoor unit 68
- Diagnose and troubleshooting 1 sensor failure 68
- Is dc voltage between both ends of sensor near 5v or 0v 68
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 68
- No reconnect 68
- Relocate if sensor is fixed well 68
- Replace pcb 68
- Replace sensor is sensor resistance acceptable 68
- Replace sensor is sensor short circuit or open circuit 68
- Commercial air conditioner 69
- Commercial air conditioner 70
- Electric data 70
- Hcfu 18 cf03 70
- Hcfu 18hf03 70
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 70
- Wiring diagram 70
- Commercial air conditioner 71
- Fan motor 71
- Hcfu 28cf03 hcfu 28hf03 71
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 71
- Outdoor 71
- Pressure 71
- Receiver 71
- Refer to operation manual to set sw1 sw5 71
- Remote 71
- Remote controller centralized 71
- Switch 71
- Switch control 71
- W white b black r red y yellow or orange bl blue br brown gr gray 71
- Wired controller 71
- Y g yellow green cap fan motor capacitor trans transformer 71
- C01 104 72
- C1 104 72
- C14 104 72
- C17 4 uf 50v 72
- C18 104 72
- C19 103 72
- C20 103 72
- C23 103 72
- C4 104 72
- Check c12 72
- Circuit diagram and printed diagram 72
- Commercial air conditioner 72
- Cs sk di d0 72
- D5 4148 72
- D7 4148 72
- Hcfu 18ca03 r1 72
- Hcfu 18cf03 72
- Ic1 tmp87ph46n 72
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 72
- R01 220 72
- R02 560 72
- R10 10k 72
- R16 1k 72
- R17 10k 72
- R18 1k 72
- R19 1k 72
- R20 560 72
- R21 10k 72
- R8 10k 72
- R9 10k 72
- T3 5a 250v 72
- Uf 16v 72
- Uf 25v 72
- Uf 275v 72
- Vref gnd xout xin reset test 72
- Commercial air conditioner 73
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 73
- Commercial air conditioner 74
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 74
- No port function 0010400020 cooling only 74
- C01 104 75
- C1 104 75
- C14 104 75
- C17 4 uf 50v 75
- C18 104 75
- C19 103 75
- C20 103 75
- C23 103 75
- C4 104 75
- Commercial air conditioner 75
- Cs sk di d0 75
- D7 4148 75
- Hcfu 18 hf03 75
- Hcfu 18ha03 r1 75
- Ic1 tmp87ph46n 75
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 75
- R01 300 75
- R02 560 75
- R10 10k 75
- R16 1k 75
- R17 10k 75
- R19 1k 75
- R21 10k 75
- R8 10k 75
- R9 10k 75
- T3 5a 250v 75
- Uf 16v 75
- Uf 275v 75
- Uf 35v 75
- Vref gnd xout xin reset test 75
- Commercial air conditioner 76
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 76
- Commercial air conditioner 77
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 77
- No port function 0010400019 heat pump 77
- Commercial air conditioner 78
- Hcfu 28 78
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 78
- Pcb information circuit diagram 78
- Commercial air conditioner 79
- Characters on board vertical 80
- Commercial air conditioner 80
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 80
- Commercial air conditioner 81
- Condition for the pcb data 81
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 81
- Pcb information port and definition 81
- Commercial air conditioner 82
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 82
- Commercial air conditioner 83
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 83
- Pcb information function selection on is 1 off is 0 83
- Commercial air conditioner 84
- Control type selection between remote and wired select by dip switch j1 sw3 1 1 means remote control 0means wired control 84
- Dip switch position in central control type the addresses sw1 1 4 sw2 1 4 of indoor units connected with central controller can not repeat in principle they should be in the order from small to big 84
- Door card control controls on off the start up setting will comply with last time request memorized according to condition memorize function its difference with emergency switch of convertible type unit lies the emergency switch control will perform in the condition 24degrees auto fan speed in auto mode 84
- For remote control type please use remote controller and a remote receiver is equipped with indoor unit 84
- Led in indoor pcb 1 led1 is the state lamp for remote receiver as well as failure lamp if indoor unit is normal led1 is on or if failure occurs led1 flashes regularly and you can adjust failure type according to the flash times 2 led2 is used for multi split units as communication lamp if communication between indoor and outdoor is normal led2 will be on 3 led3 is used for single split units as communication lamp if communication between indoor and outdoor is normal led3 will be on 4 led4 led5 is the lamp that shows the data receiving or sending between wired controller and pcb if led4 led5 be on in turn communication between wired controller and pcb is normal 84
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 84
- Pcb information control type 84
- The function combination between door card and remote wired control type select by dip switch sw2 4 0 means and 1 means later coming is preferential 84
- Wiring request in central control type port a b is connected with indoor port cn16 a b through 2 core shield wire requirements 1 port a connects with port cn16 a of all indoor units 2 port b connects with port cn16 b of all indoor units 84
- A3900005 r25 23k 2 85
- A3900006 r25 10k 3 85
- B25 50 3700k 3 85
- B25 50 3700k 3 hcfu 28cf03 85
- B25 50 4200k 3 85
- B25 50 4200k 3 hcfu 18cf03 85
- Commercial air conditioner 85
- Hcfu 18hf03 indoor coil 85
- Hcfu 28hf03 ambient temp 85
- Indoor ambient 85
- Indoor coil 85
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 85
- Model name code characteristic 85
- Sensor 001a3900159 r25 23k 2 85
- Sensor characteristic 85
- Temp sensor 85
- Temp sensor 001a3900006 r25 10k 3 85
- Commercial air conditioner 86
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 86
- Commercial air conditioner 87
- Hcfu 18cf03 87
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 87
- Noise curves 87
- Commercial air conditioner 88
- Hcfu 18hf03 88
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 88
- Commercial air conditioner 89
- Cooling high 89
- Cooling low 89
- Cooling med 89
- Fan high 89
- Fan low 89
- Fan med 89
- Hcfu 28cf03 89
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 89
- Commercial air conditioner 90
- Hcfu 28hf03 90
- Model hcfu 18 28 cf03 hcfu 18 28 hf03 90
- Commercial air conditioner 91
- Haier group 91
- Haier industrial park no haier road 91
- Http www haier com 91
- Qingdao china 91
- Sincere forever 91
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