Haier AB122ACERA Service Manual
Haier AB122ACERA Manual
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Haier AB122ACERA manual content summary:
- Haier AB122ACERA | Service Manual - Page 1
Commercial Air Conditioning SERVICE MANUAL Models AB122ACERA AC122ACERA AD122ALERA AU122AEERA Features High refrigerant R410a, environment protection Advanced technology, DC inverter control function Weekly timer (standard) Group control function Auto restart function Room card function Manual - Haier AB122ACERA | Service Manual - Page 2
Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA CONTENTS Contents 2 1. Description of products & features 3 2. Specification 7 3. Safety precaution 10 4. Net dimension 12 5. Installation instructions 14 6. Parts and functions 30 7. Controller functions 32 8. Refrigerant - Haier AB122ACERA | Service Manual - Page 3
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Products code refrigerant is R22 B stands for heat pump type, refrigerant is R407C E stands for heat pump type, refrigerant is R410a Q stands for cool only type, refrigerant - Haier AB122ACERA | Service Manual - Page 4
Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.4 Product features Adopt the much friendlier refrigerant R410a The air conditioner system adopts the greatly friendly refrigerant supply is on. Long-life& high efficiency air purify filter Low temperature cooling realized, super low - Haier AB122ACERA | Service Manual - Page 5
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.5 New friendly refrigerant R410A introduction: ■R410A The working pressure of R410A is approximately 1.6 times higher than R22. Because the oil in the refrigerant is different, please do not mix them. Refrigerant - Haier AB122ACERA | Service Manual - Page 6
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ■Piping material 1. Use the correct refrigerant piping and materials for R410A 2. For the pipe wall thickness, see the table below: Pipe diameter Φ6.35 Φ9.52 Φ12.7 Φ15.88 Φ19.1 Pipe wall thickness 0.8 0.8 0.8 - Haier AB122ACERA | Service Manual - Page 7
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 2. SPECIFICATION item Mode Function Capacity kW Sensible heat ratio Total power input W Max. power input W EER or COP W/W ENERGY CLASS Dehumidifying capacity 10‐³×m³/h Power cable Power source N, V, Hz - Haier AB122ACERA | Service Manual - Page 8
Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Item Model Function Capacity kW Sensible heat ratio Total power input W Max. power input W EER or COP W/W Dehumidifying crankcase heater power Weight(Net / Shipping) Refrigerant Type / Charge Recharge quantity W kg - Haier AB122ACERA | Service Manual - Page 9
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Norminal condition: indoor temperature level is the average sound pressure level measured from front, left, right directions. 2.air outlet from top: the noise level is the average sound pressure level measured from front - Haier AB122ACERA | Service Manual - Page 10
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 3. Safety precaution Carefully read the following information in order to operate the airconditioner correctly. Below are listed three kinds of Safety Cautions and - Haier AB122ACERA | Service Manual - Page 11
may cause water leak, electrical shock and fire hazard. Don't operate the air-conditioner with damp hands. Otherwise will be shocked. Call the dealer to take measures to prevent the refrigerant from leaking. If conditioner is installed in a small room be sure to take every measure in order - Haier AB122ACERA | Service Manual - Page 12
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 4. Net dimension 4.1 AB122ACERA :;9 B9 A9 LXIQTIOM VQVM RQW[QL VQVM OIY VQVM U\MXRIVML LQYZITKM JMZ]MMT ZPM KMQRQTO ITL ZPM VITMRC ;>SS Y[YVMTYQUT PURLMX :>9SS @9SS 7QTLUUX [ - Haier AB122ACERA | Service Manual - Page 13
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 4.3 AD122ALERA ; ?> : @A =< B 9EBG DF=>C : ; < = > ? 45-..47684 1/3 03/+1 -/- 2-, .11 -,1 @ A B 0-3 1,3 .., 4.4 AU122AEERA 23+ 6AF;B 8=B=@< 7;B?=@9> 6AF;B 8=B=@< 4=CDB=:ED=A@ 5A>; 1/+ -0 245 0++ 13 - Haier AB122ACERA | Service Manual - Page 14
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5. Installation Instructions 1. Accessories "Edging" for strong wind directly to the Air inlet (Servicing space) outlet air-flow hole. (3) A one meter distance should be kept from the Air outlet unit top L1 (4) Don - Haier AB122ACERA | Service Manual - Page 15
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.1 Installation of outdoor unit Installation Fix the unit in a proper way according to the condition of a place where it is installed by referring - Haier AB122ACERA | Service Manual - Page 16
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 2 ¡ 16 - Haier AB122ACERA | Service Manual - Page 17
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric wiring WARNING! DANGER detailed wiring connection with the indoor units, see the corresponding indoor operation and instruction manual. To Indoor Unit OUTDOOR UNIT 1 2 3 TERMINAL BLOCK Y/G WARNING! - Haier AB122ACERA | Service Manual - Page 18
Commercial Air Conditioner Model: AU122AEERA AB122ACERA t AC122ACERA AD122ALERA 5.2 Indoor unit ins allation 5.2.1 AB122ACERA 52S_f_]ncih i` Jhmn ho[f [l_ nb_ chmn[ff[ncih []]_mmilc_m q_ jl_j[l_^2 1.5m Air outlet Air inlet Air outlet 2.5m Over 1.5m Ni2 B]]_mmils j[lnm Qns2 62Jhmn[ff[ncih - Haier AB122ACERA | Service Manual - Page 19
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA -7. Jhmn[ff [ momj_h^cha \ifn Ti mojjiln nb_ 32mm ) Drainpipe should be short, with a downward slope at least 1/100 to prevent air bag from forming. If downward slope of drainpipe cannot be made,lifting pipe shall be - Haier AB122ACERA | Service Manual - Page 20
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1-1.5m slope over 1/100 Use the drainage hose and clip provided with unit. Insert water pipe into water plug until it reaches the - Haier AB122ACERA | Service Manual - Page 21
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Electric control box Panel limitation board installation (1)Install the panel board in the direction shown in the figure. (2)The incorrect direction will result - Haier AB122ACERA | Service Manual - Page 22
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.2.2 AC122ACERA INSTALLATION PROCEDURE Install the room air conditioning unit as follows: PREPARING INDOOR UNIT INSTALLATION FIRST REMOVE THE INTAKE GRILL A. FLOOR MOUNTING (AC36/42 only suitable for exposed ceiling - Haier AB122ACERA | Service Manual - Page 23
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA CAUTION Install the drain hose .16) if condensate pump is not fitted to system. Fig. 16 Remove the hole cover. Spring washer Special nut Bracket Arrange the drain hose lower than this portion OK 10 18 7.5 7.5 18 10 - Haier AB122ACERA | Service Manual - Page 24
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Wiring ELECTRICAL WIRING CAUTION (1) operating manual: (1) Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other remote control unit operations. (2) Air filter - Haier AB122ACERA | Service Manual - Page 25
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 5.2.4 AD122ALERA GbghU``Uh]cb gdUWY Q\Y ]bXccf ib]h g\U`` VY ]bghU``YX Uh `cWUh]cbg k\YfY Wc`X UbX \ch U]f Wci`X YjYb`m W]fWi`UhYX2 Q\Y Zc``ck]b[ ` - Haier AB122ACERA | Service Manual - Page 26
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA CUW\ cZ h\Y U]f gYbX]b[ XiWh UbX U]f fYhifb XiWh g\U`` VY Z]lYX cb h\Y dfYZUVf]WUhYX dUbY` cZ h\Y Z`ccf Vm h\Y ]fcb VfUW_Yh2 Q\Y fYWcaaYbXYX X]ghUbWY VYhkYYb h\Y YX[Y cZ h\Y U]f - Haier AB122ACERA | Service Manual - Page 27
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 62 GbghU``Uh]cb cZ U]f fYhifb XiWh RgY f]jYh hc WcbbYWh h\Y U]f fYhifb XiWh cb h\Y U]f fYhifb ]b`Yh cZ h\Y ]bXccf ib]h0 h\Yb WcbbYWh h\Y ch\ - Haier AB122ACERA | Service Manual - Page 28
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA FUb[]b[ cZ h\Y ]bXccf ib]h DUghYb h\Y bih cb h\Y gigdYbg]cb gWfYk UbX h\Yb \Ub[ h\Y gigdYbg]cb gWfYk ]b h\Y Q g`ch cZ h\Y gigdYbg]cb dUfh cZ h\Y ib] - Haier AB122ACERA | Service Manual - Page 29
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA t784=6 t - Haier AB122ACERA | Service Manual - Page 30
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 6. Parts and Functions 6.1 AB122ACERA F_RWP UX]^NZ +9RZ OUX_ MRZNL\RXW LJW KN JMS][\NM K` ][RWP \QN FI?B> K]\\XW XW \QN ZNVX\N LXW\ZXUUNZ, CYNZJ\RWP :XW\ZXU DJWNU - Haier AB122ACERA | Service Manual - Page 31
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 6.3 AD122ALERA Air outlet frame Evaporator 6.4 AU122AEERA Air inlet Electrical components Case Drain pan Air outlet Compressor (Inside of unit) 31 - Haier AB122ACERA | Service Manual - Page 32
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 7. Controller functions Mg_jZj^] \hgljhee^j YS - Haier AB122ACERA | Service Manual - Page 33
Commercial Air Conditioner 8. Refrigerant circuit Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA defrost temp. sensor Te condenser outdoor ambient temp. sensor Tao assistant main capillary capillary one-way valve cooling heating 4-way valve check valve - Haier AB122ACERA | Service Manual - Page 34
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 9. Electrical Control Functions 9.1. Outdoor electric control functions System main functions Definition of sensor sign: Tnh=indoor ambient temp., Twh=outdoor ambient temp., Tpg= - Haier AB122ACERA | Service Manual - Page 35
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ambient temperature, and 3 minutes later, the unit will adjust according to the outdoor ambient temperature and compressor running frequency. Fan speed chart in 3 - Haier AB122ACERA | Service Manual - Page 36
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Initialize movement: 600 pulse close, then 50 pulse open, that is stop at 50 pulse at last; Full-open: 480 pulse open(E); Upper/ - Haier AB122ACERA | Service Manual - Page 37
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 1.5 Outdoor defrosting control 1.5.1 Enter condition In heating mode, if the compressor has run for 10 minutes continuously and run for 45 minutes in - Haier AB122ACERA | Service Manual - Page 38
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA and LED1 are black out. 1.9 Time shorting function Time shorting function: If the time shorting port is in short circuit after electrifying CJ601, - Haier AB122ACERA | Service Manual - Page 39
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA The compressor will stop and alarm if current exceed 11A for 3 seconds contineously during compressor startup, the compressor can re-start up after 3 - Haier AB122ACERA | Service Manual - Page 40
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 11℃ 9℃ normal control slow 400) can be manual adjusted. Note: the dip switches for compulsory cooling and compulsory heating can not be setted ON synchronously. 1.10.10 Failure code and troubleshooting The outdoor lamp - Haier AB122ACERA | Service Manual - Page 41
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Trouble description Display of LED borad one hour. Alarm and stop if detect Td-Tci>=25 last for 1min Lack off refrigerant or discharge side dirty 11101 after compressor has started for 10min in cooling mode, confirm - Haier AB122ACERA | Service Manual - Page 42
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA AB122ACERA AC122ACERA AD122ALERA electric control function: 1. 12VDC control signal, 220VAC control signal or control switch; 1.10 Fresh air control: 12VDC DC motor,220VAC AC control port output; 1.11 CLOCK setting - Haier AB122ACERA | Service Manual - Page 43
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA conditions, then perform the selected mode. Tr≥Ts-3℃ select COOL mode (includes FAN mode) Tr＜Ts-3℃ select HEAT or FAN mode 4.2 After entering - Haier AB122ACERA | Service Manual - Page 44
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ΔT＞2, the compressor and the outdoor motor will run 6-minute limitation. 7.3 ΔT≥1 compressor running, indoor motor runs at anti-cold air mode; ΔT≤-1 compressor stops, indoor motor runs at blowing remaining heat mode; - Haier AB122ACERA | Service Manual - Page 45
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA alarm. 7.6 Anti-cold air function in heating mode 6 times continuously, then the buzzer will sound 3 times, you can enter the manual defrosting. At this moment, the unit will not adjust the enter condition of defrost and - Haier AB122ACERA | Service Manual - Page 46
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA When timer is over, the unit begins to run, and the timer LED is off. The unit operation begins from receiving the timer - Haier AB122ACERA | Service Manual - Page 47
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA After compressor is running for 3 minutes, the unit will check the pipe pressure, when the pipe pressure is too low and low pressure - Haier AB122ACERA | Service Manual - Page 48
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA ) discharge B (oil circuit for more than 2m resumable temp. continuously sensor-multi) 21 20(32D) 07D Module failure Module overheat, overcurrent, due to - Haier AB122ACERA | Service Manual - Page 49
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 10. Electric data AB122ACERA CIRCUIT DIAGRAM OF INDOOR UNIT PUMP MOTOR CONTROLLER NOTE: 1.THE PARTS IN DASHED FRAME ARE OPTIONAL 2.REFER TO OPERATION MANUAL TO SET BM3 AND BM4 3.USER SHOULD NOT TO SET BM1 AND BM2 - Haier AB122ACERA | Service Manual - Page 50
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 0010452325E for AB122ACERA CN4 CN15 CN17 CN20 CN21 CN22 CN2 CN18 CN1 CN3 CN6 CN7 CN8 CN10 CN11 CN16 BM4 BM3 CN19 BM1 BM2 CN14 LED2 CN13 LED1 CN12 50 - Haier AB122ACERA | Service Manual - Page 51
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 0010451690E for AC122ACERA and AD122ALERA CN12 CN16 CN11 CN15 SW5 CN21 SW4 SW3 SW2 SW1 CN8 CN13 LED1 CN14 CN17 CN20 CN19 LED5 - Haier AB122ACERA | Service Manual - Page 52
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA WIRING DIAGRAM OF OUTDOOR UNIT 0150501661 52 LED1 LED2 ON LED3 1 2 3 4 LED4 LED5 LED BOARD AC FAN MOTOR CRANKCASE HEATER 6 4-WAY M Y/G 1 VALVE COMPRESSOR - Haier AB122ACERA | Service Manual - Page 53
Commercial Air Conditioner Model: AU242AGERA AB242ACERA AC242ACERA AD242ALERA AD242AMERA Outdoor PCB 0151800037 P2 P5 P3 P1 P4 CN16 P8 P6 P7 CN1 CN13 LED001 CN2 CN24 CN19 CN20 CN18 CN17 CN15 CN12 SW1 SW4 CN5 CN6 CN7 CN10 CN8 CN11 CN3 SW3 SW2 53 - Haier AB122ACERA | Service Manual - Page 54
Commercial Air Conditioner 10.3 Sensor characteristic Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Model AU122AEERA AB122ACERA AC122ACERA AD122ALERA Name Outdoor ambient temp. sensor Compressor sunction sensor Outdoor defrost sensor Compressor discharge sensor Condenser inlet temp. sensor - Haier AB122ACERA | Service Manual - Page 55
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA R25=10KΩ±3% B25/50=3700K±3% T(℃) Rnom(KΩ) -20℃ 90.79 24 -19 85.72 25 -18 80.96 26 -17 76.51 27 -16 - Haier AB122ACERA | Service Manual - Page 56
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA R80=50KΩ±3% B25/80=4450K±3% T(℃) Rnom(KΩ) -30 11600 13 -29 10860 14 -28 10170 15 -27 9529 16 -26 8932 17 -25 8375 - Haier AB122ACERA | Service Manual - Page 57
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 11. Troubleshooting 1) Sensor failure Alarm condition: ambient good no yes if the total load is too big no yes if the refrigerant is normal yes compressor startup procedure is yes abnormal, and vibrates seriously no - Haier AB122ACERA | Service Manual - Page 58
Air Conditioner Model: AU122AEERA AB122ACERA 4) Communication error between indoor and outdoor units indoor unit troubleshooting compressor can not startup after unit is switched on for above failure yes check if refrigerant is too much or too less adjust refrigerant no check if the system - Haier AB122ACERA | Service Manual - Page 59
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA 6) Outdoor high pressure protection Alarm condition: When compressor running, high pressure is over 4.5 MPa for 30 seconds continously outdoor failure indicator indicate high pressure failure check if the refrigerant is - Haier AB122ACERA | Service Manual - Page 60
Commercial Air Conditioner 10) Communication failure between outdoor PCB and module outdoor indicator flashes 22 times Model: AU122AEERA AB122ACERA is low,too check if piping is blocked yes Lack of refrigerant, charge additional refrigerant and check if piping leaks, if yes, replace piping - Haier AB122ACERA | Service Manual - Page 61
Commercial Air Conditioner 12. Noise level Sound pressure level DB Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Sound pressure level DB Noise level-AB122ACERA 54 50 46 42 38 34 30 26 22 18 14 10 25 31.5 40 50 63 80 100 125 160 200 250 315 400 - Haier AB122ACERA | Service Manual - Page 62
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Sound pressure level DB Sound pressure level DB Noise level-AC122ACERA 50 46 42 38 34 30 26 22 18 14 10 25 - Haier AB122ACERA | Service Manual - Page 63
Commercial Air Conditioner Model: AU122AEERA AB122ACERA AC122ACERA AD122ALERA Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com
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Commercial Air Conditioning
SERVICE MANUAL
Models
z
Features
z
High energy efficiency
z
Infrared control type or wired control type
z
Low ambient cooling kit (optional) and low ambient heating kit (optional)
z
New friendly refrigerant R410a, environment protection
z
Advanced technology, DC inverter control function
z
Weekly timer (standard)
z
Group control function
z
Auto restart function
z
Room card function
AB122ACERA
AC122ACERA
AD122ALERA
AU122AEERA
z
Can be connected with the universal outdoor unit AU122AEERA
Manual code:
SYJS-020-07REV.
0
Edition: 2007-05-
15