Related Manuals for Haier AP48KN1EAA
Summary of Contents for Haier AP48KN1EAA
- Page 1 Commercial Air Conditioning SERVICE MANUAL AP48KN1EAA(H) 1U48IN1EAB Feature: • High Reliability • Double fan outdoor unit • Long Pipe Length & High Height Drop SYJS-11-2015REV.A Edition: 2015-11...
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Page 2: Table Of Contents
Content 1. DESCRIPTION OF PRODUCTS & FEATURES........1 2. Specification....................2 3. Dimension....................4 4. Piping diagram..................5 5. Installation....................6 6. Noise level....................22 7. Wiring diagram..................23 8. PCB photo....................25 9. Electric control functions................27 10. Failure code..................39 11. Troubleshooing..................40 12. Sensor characteristic................48... -
Page 3: Description Of Products & Features
Single Split 1. DESCRIPTION OF PRODUCTS & FEATURES 1.1. Products code explanation A: T1 & 220-240V,1Ph,50Hz A:fixed-speed E: R410A 1: version 1 N: normal EER Appearance character Cooling capacity,48=48000BTU/h Product type : “P” stands for cabinet type, ” “U” stands for outdoor unit A: single split 1.2 Product features •High Efficiency , Energy Saving:... -
Page 4: Specification
Single Split 2. Specification 1U48IN1EAB/AP48KN1EAA(H） Item Model cooling heating Function 48000 51500 Capacity BTU/h 15.1 14.1 Capacity Sensible heat ratio Rated power input Max. power input 2.85 2.95 EER or COP Dehumidifying capacity 10‐³×m³/h 5G×4.0mm Power cable section 4G×2.5mm2 Signal cable section 4G×2.5mm... - Page 5 Single Split 1U48IN1EAB Unit model (color) ATE518SC3Q9RKA/Shanghai Hitachi Model / Manufacture Elctrical Appliances Co.,Ltd α68HES-H Oil model α68HES-H Oil type Compressor 1600ml Oil charging Rotary Type Inner thermal protection Protection type direct start Starting method axial×2 Type × Number 840±30/520±40 Speed r/min 0.07...
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Page 6: Dimension
Single Split 3. Dimension Indoor unit: AP48KN1EAA(H) 开 / 关 模 式 风 速 温 度 + 温 度 - 健 康 Indoor unit: 1U48IN1EAB... -
Page 7: Piping Diagram
Single Split 4. Piping diagram... -
Page 8: Installation
Single Split 5. Installation... - Page 9 Single Split...
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- Page 16 Single Split Indoor & outdoor unit connection pipe direction Left Rear Right Bottom...
- Page 17 Single Split Tools necessary Tools necessary 1. Screw driver 2. Hacksaw 3. 70mm dia. hole core drill 4. Spanner (dia. 17, 27mm) 5. Spanner (14, 17, 27mm) 6. Pipe cutter 7. Flaring tool 8. Knife 9. Nipper 10. Gas leakage detector or soap water 11.
- Page 18 Single Split Installation procedures Display of whole unit Try to bring the packed unit to the installation place. When it is inevitable to unpack the unit, be careful not to damage the unit. Wrap it with nylon etc. After unpacking, be sure to put it with the front side of the unit facing up. Delivery Facing up Note: When delivering, don't hold plastic...
- Page 19 Single Split Installation procedures Installation of indoor unit Selection of installation place Place where it is easy to route drainage pipe and outdoor piping. Place away from heat source and with less direct sunlight. Place where cool and warm air could be delivered evenly to every corner of the room. Place near power supply socket.
- Page 20 Single Split Installation procedures Piping connection 1.Connecting method Apply refrigerant oil at half union and flare nut. To bend a pipe, give the roundness as large as possible not to crash the pipe. When connecting pipe, hold the pipe centre to centre then screw nut on by hand, refer to Fig.
- Page 21 Single Split Installation procedures Arrangement of drain hose Drain hose shall be placed in under place. There should be a slope when arrange drain hose. Avoid up and down waves in drain hose. Indoor unit Down Slope Good If humidity is high, drain pipe( especially in room and indoor unit ) must be covered with insulation material.
- Page 22 Single Split Installation procedures Electric wiring Note: Electric wiring must be done by qualified person. Use copper wire only, the parameter of connecting cable is H07RN-F 4G 0.75mm The power cable should be over 5G 2.5mm The power supply connects from the outdoor unit. The connecting cable and power cable are self-provided.
- Page 23 Single Split Others 1. Pipe cutting and flaring Be sure to carry out deburring after pipe cutting with a pipe cutter. Insert flaring tool to make a flare. Correct Incorrect Lean Damaged flare Crack Partial Too outside Pipe dia. Dimension A(mm) Flaring tool Liquid pipe 9.52mm (3/8")
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Page 24: Noise Level
Single Split 6. Noise level AP48KN1EAA(H) noise level low heating med heating high heating low cooling med cooling high cooling low fan med fan high fan 1000 1600 2500 4000 6300 10000 160000 1/3 octave band frequency Hz 1U48IN1EAB noise level... -
Page 25: Wiring Diagram
Single Split Wiring diagram AP48KN1EAA(H) CIRCUIT DIAGRAM OF INDOOR UNIT 0010578100 FLOAT SWITCH RECEIVER ROOM TEMP SENSOR ONE-OFF FUSE PIPING TEMP SENSOR HEATER RESUMABLE PROTECTOR LONG-DISTANCE SWING MOTOR CN12 CN11 CONTROLLER DETECTION CN20 CN21 PUMP CONTROLLER CN19 1234 T6.3A/250VAC FAN MOTOR... - Page 26 Single Split 1U48IN1EAB...
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Page 27: Pcb Photo
Single Split 8. PCB photo Indoor PCB 0010451850... - Page 28 Single Split Outdoor PCB 0010452441...
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Page 29: Electric Control Functions
Single Split 9. Electric control functions 9.1 For indoor unit 1. Communication control 1.1 Remote receive function, with remote controller YR-H005. 1.2 Long-distance communication, the long-distance control function is pre-set 1.3 Wired controller communication, the wired controller can be used for communication by dip-switch selection. - Page 30 Single Split 3.2 AUTO mode control 1) When entering AUTO for the first time, the unit will select the running mode due to the below conditions, then perform the selected mode. Tr≥Ts-3℃ select COOL mode (includes FAN mode) Tr ＜ Ts-3℃ select HEAT or FAN mode (2) After entering the AUTO mode, the mode can change over among COOL, HEAT or FAN modes according to the indoor ambient temperature (conversion temperature difference is ±3℃...
- Page 31 Single Split ΔT ＞ 2, the compressor and the outdoor motor will run continuously, indoor motor will run at the set speed, this area is defined as Area A; 0≤ΔT≤2, the compressor and the outdoor motor will always run for 10 minutes and then stop for 6 minutes, indoor motor will be LOW speed, this area is defined as Area B;...
- Page 32 Single Split (5) Anti-cold air function in heating mode After entering heating mode, or last defrosting is over, the compressor will start up, if Tg ＜ 28℃ (HW_ D2), indoor motor will stop; if 38℃ (HW_D1)>Tg≥28℃ (HW_D2), indoor motor will run at low speed; if Tg≥38 ℃...
- Page 33 Single Split (10) Indoor motor compulsory speed control in heating mode: if indoor coil temperature Tg>56 ℃ , indoor motor LOW speed invalid, change to MIDDLE speed automatically; when Tg>60 ℃ , indoor motor MIDDLE speed invalid, change to HIGH speed automatically; when Tg below 52℃ , resume the original fan speed, outdoor MCU will work in overheat protection due to the temperature value.
- Page 34 Single Split the compulsory cooling signal from controller, the unit enters the compulsory cooling state, there is no compressor 3-minute protection, the unit will run in cooling mode, and indoor/outdoor motors are in high speed for 5 minutes; in the 5 minutes, the system will not adjust the protection and not be limited by the ambient temperature, 5 minutes later, the unit will enter the normal state.
- Page 35 Single Split Indoor ambient temperature sensor: Mainboard checks that the sensor is in open circuit, short circuit or close to short circuit for 2 minutes continuously, the mainboard will confirm that sensor is failure, the system will stop running, alarm occurs; If the signal is resumed, the system will resume automatically.
- Page 36 Single Split 9.2 For outdoor unit 1. Outdoor motor control When the system does not occur overcooling, overheating, and over current protections, the outdoor motor will occur the below changes according to the outdoor ambient temperature and indoor coil temperature. 1.1 General information Outdoor motor is 2-speed type: high, low and stop.
- Page 37 Single Split Type 1: Standard defrost (1) If Tr≥-2℃ , when Tp≤-6℃ , enter defrost. (2) If -12℃ ≤Tr ＜ -2℃ , when Tp≤-6℃ , please refer to the following chart. (3) No matter the ambient temperature, when Tp≤-16℃ , enter defrost. Type 2: Non-standard defrost (rectify defrost data by the device) (1) If Tr≥6℃...
- Page 38 Single Split 2.4 Manual defrost Indoor sends defrost signal to outdoor, and the outdoor will receive the defrost signal when compressor is running in heating mode, then enter the defrost process. When outdoor coil temperature arrives the defrost-end point and the defrost time is over 5 minutes, outdoor will send the defrost-end signal to finish the defrosting.
- Page 39 Single Split 4.4 Power protection The PCB has set the power protection, zero crossing detecting the L2, L3 order by combined the hardware and software, L1 and N as base phase, L1, L2, L3 as correct phase sequence. When power on detecting the 3-phase power, the unit will delay 10 second into running For the power supply (L1, L2, L3) : positive phase, reversed phase, lack phase--- testing immediately after power on 1) Signal detection for more than 5 seconds without any signal, the lack of phase reported...
- Page 40 Single Split (2) How to deal with it? If the outdoor ambient temperature sensor and the outdoor coil temperature sensor have broken down, the unit will stop running, and alarm E3, E4, E4 simultaneously. The compressor sensor will detect when the compressor running, 2 minutes later, if >125℃ ,the compressor stop, recover <95℃ and stop time over 3 minutes,the compressor can recover running, if it occurs 3 times in 30 minutes, unit stop and alarm E4,cut off the power can recover.
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Page 41: Failure Code
Single Split 10. Failure code WCR : Failure code in pannel controller 0150514714 CCR : Run lamp flash times Failure description Float switch is disconnected 25min or longer. Indoor ambient s ensor is open- circuit or short -circuit for 2min or longer. Indoor pipe s ensor is open- circuit or short -circuit for 2min or longer. -
Page 42: Troubleshooing
Single Split 11. Troubleshooting Troubleshooting (before replacement of PCB) Service call Fault confirmation For example: no cooling, etc. 1.Is supply voltage acceptable? Confirm operating 2.Is temperature setting correct? (e.g. too high) conditions 3.Is system in TIMER mode? 4.Is user aware of product features, etc. Is the feature not Explain product available for present... - Page 43 Single Split 1) Compressor discharging temperature protection start Are stop valves in suction pipe and open valves liquid pipe of outdoor unit open? Is discharging temperature Is discharging temperature detected replace discharging sensor sensor in good condition? by a thermometer too high? replace PCB Are high pressure and If the pipe is...
- Page 44 Single Split 2) Low pressure protection Confirm the fault according to the fault code list Are connectors of pressure switch in good condition? Check and reconnect Is low side pressure switch Replace PCB activated? (If not, DC voltage is 0V.) Is the low side pressure detected by the gage lower than threshold value? The Replace low pressure switch...
- Page 45 Single Split 3) High pressure protection Confirm the fault according to the fault code list Are connectors of pressure switch in good condition? Check and reconnect Is high side pressure switch Replace PCB activated? (If not, DC voltage is 0V.) Is the high side pressure detected by the gage higher than threshold value? The Replace high pressure switch...
- Page 46 Single Split 4) Sensor failure check if the wiring is correct reconnect according to wiring diagram Relocate if sensor is fixed well Replace sensor Is sensor short-circuit or open-circuit? Is sensor resistance acceptable? Replace sensor Is DC voltage between both ends of sensor near 5V or 0V? Replace PCB 5) Communication error between indoor and outdoor units...
- Page 47 Single Split 6) Communication failure between wired controller and indoor PCB or no display on wired controller Confirm comm umication failure according to the fault code list or no display check if the wired controller replace wired controller can match with indoor PCB for some models, when powered on, Is power just turned on? initialization will display 88, if initrialization...
- Page 48 Single Split 8) External alarm An external alarm is identified according to the list of fault codes Is an external alarm Solve problem accordingly connected to the system? Is ALARM terminal in mainboard disconnected? Short connect that terminal if failure disappear after PCB is changed replace PCB 9) Overcurrent protection for single-phase fixed frequency models Is supply voltage too low? Especially...
- Page 49 Single Split 10) Temperature cutoff protection confirm the malfunction according to the fault c o de list Does small relay coil Is outdoor four-way valve in good Relay is broken. of four-way valve have condition during heating cycle? Replace PCB a voltage of 12V DC? Does four-way valve work properly? Replace four-way valve...
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Page 50: Sensor Characteristic
Ambient temp. sensor 001A3900159 B25/50=4200K±3% Indoor R25=10KΩ±3% Coil pipe temp. sensor 0010401922 B25/50=3700K±3% R25=5KΩ±3% 1U48IN1EAB/ Ambient temp. sensor 001A3900110 B25/50=3450K±1% AP48KN1EAA R80=50KΩ±3% Discharge temp. sensor 0010450398 Outdoor B25/80=4450K±3% R25=5KΩ±3% Coil pipe temp. sensor 0010451314 B25/50=3450K±3% R25=10KΩ±3% B25/50=3700K±3% T(℃ ) Rnom(KΩ) T(℃... - Page 51 Single Split R80=50KΩ±3% B25/80=4450K±3% T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) 11600 2636 760.8 253.6 10860 2489 722.8 242.5 10170 2351 687.3 9529 2221 653.8 221.9 8932 2099 212.3 8375 1984 203.2 7856 1877 553.6 194.5 7372 1775...
- Page 52 Single Split R25=23KΩ±2.5% B25/50=4200K±3% T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) -20℃ 281.34 1℃ 78.94 21℃ 27.86 41℃ 11.22 -19℃ 263.56 2℃ 74.67 22℃ 26.54 42℃ 10.76 -18℃ 247.04 3℃ 70.65 23℃ 25.3 43℃ 10.31 -17℃...
- Page 53 Single Split R25=5KΩ±3%B25/50=3450K±1% T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) T(℃ ) Rnom(KΩ) 23.21 4.63 1.32 0.48 22.09 4.46 1.28 0.47 21.03 4.29 1.24 0.46 20.03 4.13 1.20 0.45 19.08 3.98 1.17 0.43 18.19 3.84 1.13 0.42 17.34 3.70 1.10 0.41...
- Page 54 Single Split Haier Commercial Air Condition ADDRESS: No.1 Haier Road, Hi-tech Zone,Qingdao 266101 P.R.China Web: Http://www.haier.com Haier reserves the right to make change without any notice.