Haier AS072XVERA Service Manual

Commercial air conditioning

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Operation and installation manual (34 pages)

Service manual (143 pages)

Operation manual (69 pages)

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Commercial Air Conditioning

SERVICE MANUAL

Features

High energy efficiency

Newly designed V-appearance for wall mounted unit, step or stepless air flow

control

New outdoor unit with valve cover plate, also the grille is changed from metal

one to plastic one

Adjustable heating temperature compenstation

Free combination, multiple connection types with different types of indoor

unit, total indoor load can be up to 135% than the standard match

Infrared control type

Central control and full automation, if connected with a central controller

New friendly refrigerant R410a, zero ODP, environment protection

Advanced technology, DC inverter control function

Health airflow and sterilize function for wall mounted unit, more healthy

Weekly timer (standard)

Group control function

Auto restart function

Low ambient temperature heating (-15 degree) function

Room card function

Manual code: SYJS-013-05REV.3

Models

AS072XVERA

AS092XVERA

AS122XVERA

AU182XFERA

AU222XFERA

Edition: 2007-04-14

Table of Contents

Troubleshooting

Summary of Contents for Haier AS072XVERA

Page 1: Service Manual
Commercial Air Conditioning SERVICE MANUAL Models AS072XVERA AS092XVERA AS122XVERA AU182XFERA AU222XFERA Features High energy efficiency Newly designed V-appearance for wall mounted unit, step or stepless air flow control New outdoor unit with valve cover plate, also the grille is changed from metal...
Page 2: Table Of Contents
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA CONTENTS Contents………………………………………………………..2 1. Description of products & features………………………...3 2. Specification………………………………………………….6 3. Safety precaution……………………………………………10 4. Net dimension of indoor and outdoor……………………..12 5. Installation instructions………..……………………………13 6. Parts and functions………………………….………………36 7. Remote controller YR-H65...……………………………….37 8. Refrigerant diagram…………………………………………45 9.
Page 3: Description Of Products & Features
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 1.Description of products & features 1.1. Products code explanation U 18 Climate type: T1 (see table 1) Design number (R stands for design sequence, DC inverter type) Product type: A stands for heat pump type, refrigerant is R22 B stands for heat pump type, refrigerant is R407C E stands for heat pump type, refrigerant is R410A N stands for cool only type, refrigerant is R407C...
Page 4 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 1.4 Product features High efficienct, universal outdoor unit The outdoor unit can match with wall mounted type, duct and cassette type indoor unit. One set outdoor can match with multiple indoor units, up to 3 sets. Even when you have already installed the air conditioner, if you want to add or reduce one unit, go ahead freely as long as your operation complies with our design.
Page 5 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Auto–restart function (optional) All indoor units have auto-restart function. When the power supply cut off suddenly, the unit will automatically recover the previous running mode once the power supply is on. Self-diagnostic function In the course of operation, if the failure occurs, the failure code will display on the wired controller or on the operation panel.
Page 6: Specification
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 2. Specification Item Model AU182XFERA Function Cooling Heating —— Rating capacity 5300 7000 Power input 1650 1800 3.21 3.88 EER / COP Minimum capacity 1500 1800 Power input 5800 7400 Maximum capacity 2300 2300 Power input Power source 1PH, 220-230V~, 50Hz...
Page 7 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Item Model AU222XFERA Cooling Heating Function —— Rating capacity 6400 7300 Power input 2100 2000 Current input 3.04 3.65 EER / COP Minimum capacity 1500 1800 Power input Maximum capacity 6800 7500 2900 2900 Power input 1PH, 220-230V~, 50Hz Power source...
Page 8 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Item Model AS072XVERA AS092XVERA Function Cooling Heating Cooling Heating —— 7000 8000 9000 10000 Capacity BTU/h 2000 2300 2500 2900 Capacity Power cable —— 3 × (1.0~1.5mm Communication cable —— 2x(0.75~1.25mm ), must be shielded Dehumidifying capacity 10‐³×m³/h...
Page 9 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃ Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter.
Page 10: Safety Precaution
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 3. Safety precaution Carefully read the following information in order to operate the airconditioner correctly Below are listed three kinds of Safety Cautions and Suggestions. Incorrect operations may result in severe consequences of death or serious injuries. WARNING! CAUTION! Incorrect operations may result in injuries or machine damages;...
Page 11 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA WARNING! Nothing or nobody is permitted to Installed electrical-leaking circuit placed on or stand on outdoor unit. breaker . It easily cause electrical shock without The falling of goods and people may circuit breaker. cause accidents.
Page 12: Net Dimension Of Indoor And Outdoor
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 4. Net dimension of indoor and outdoor AU18/222XFERA: Wall mounted unit: -12-...
Page 13: Installation Instructions
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 5. Installation Instructions ■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 R22 (single) R410A (mixed) R407C (mixed) Mineral oil (SONTEX 200LT) Synthetic oil (POE oil)
Page 14 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA ■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 Note: Always observe and comply with the local regulations when installing the refrigerant piping. ■Tools R410A work requires a number of special tools (* symbol).
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Page 16 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -16-...
Page 17 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Clamp -17-...
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Page 27 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Indoor unit installation -27-...
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Page 34 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA (necessary procedure) -34-...
Page 35 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -35-...
Page 36: Parts And Functions
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 6. Parts and Functions Air inlet grille Front panel Air inlet grille Louver Display board -36-...
Page 37: Remote Controller Yr-H65
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -37-...
Page 38 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -38-...
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Page 45: Refrigerant Diagram
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 8. Refrigerant Diagram -45-...
Page 46 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -46-...
Page 47: Electrical Control Functions
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 9. Electrical Control Functions Outdoor electric control functions: 1. Switch setting and functions: Item Set in factory Switch function: SW5-1---outdoor fan motor selection, ON: DC fan motor; OFF: AC fan motor Switch function: SW5-2---defrosting data setting, ON=6degree, OFF＝8degree (set when out of factory).
Page 48 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA TinC TinB TinA Toci TaiC TaiB TaiA TouC TouB TouA HPSW 3.2 Outdoor frequency control 3.2.1 Compressor running frequency range: 20~90RPS 3.2.2 Defination of high-efficiency operation and its frequency control In order to meet the cooling request at high ambient temperature and the heating request at low ambient temperature, we set the high-efficiency operation.
Page 49 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA <=90℃ -5degree/30seconds, and reduce to 0 degree gradually Heating mode Indoor modification angle +50degree/30seconds, it will stop until up to the max. permitted 100℃< discharging temp. opening angle 90℃< discharging temp.<=100℃ Keep the angle <=90℃...
Page 50 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Te≤C×TA－α Herein: C：TA＜0℃，C=0.8 TA≥0℃，C=0.6 According to SW2, the setting is as follow: in the place easy to frost, it is H; when out of factory, it is M. Jumper M(out of factory) selection α(℃) 8(E) 6(E) ②Defrosting entering condition: -15℃≤C×TA－α≤-2℃...
Page 51 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 3.7.4 Defrosting operation flow chart beginning fixed frequency indicated FQY 60s defrosting FQY 80 Hz（E） soft startup compressor outdoor motor send defrosting signal to indoor Auto 4-way valve Spray valve SV2 OFF 450-pulse 450-pulse 350-pulse(E) all EEVs auto open angle...
Page 52 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 3.8 Frequency control when Td is too high Purpose: make compressor frequency control if the discharging temp. is too high, to lower the discharging temp. efficiently and ensure the system can run normally. If keeping for 10s, the unit stops, 3 minutes later, the unit can re-startup.
Page 53 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 3.10 High pressure protection When the input signal of pressure switch is high level:1, that shows there is no protection. When the input signal of pressure switch is low level: 0 for 1 minute, that shows high pressure protection works.
Page 54 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA In cooling, confirm through Tc2AVE: Normal operation -25℃ Min. running FQY 20HZ -30℃ SV2 OFF & 20HZ -35℃ SV2 ON & 20HZ -40℃ Keep for 5 seconds, unit stops and alarm -45℃ occurs. 3 minutes later, restart up. If it occurs 3 times in 1 hour, it will always alarm and stop, electrify again and failure will be cleared.
Page 55 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Indoor electric control functions: Note: The following functions are applicable for the unit in normal state. 1. Parameter input: 1.1 Analog data input: 1.1.1 Indoor temperature sensor input (TA): 1-way, 23KΩ at 25℃ 1.1.2 Indoor coil outlet temp/inlet temp (TC1: gas pipe, TC2: liquid pipe): 2-way, 10KΩ at 25℃ 1.1.3 Indoor middle coil temp.
Page 56 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Note: The above dip switches are correlative to the system security, so please confirm the conformity between the unit and the dip switch. The incorrect dip switch setting will result in the system wrong operation or the wrong failure diagnosis. 2.
Page 57 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA In defrosting period, indoor fan motor will stop running; In heating mode, if unit shutoff, indoor fan motor will stop after running for 30 seconds at super low speed. Note: The above temp. point has taken fuzzy control, and has tolerance ±2℃ according to the different state.
Page 58 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Press ON/OFF button (from OFF mode to ON mode), the times of SLEEP button to be pressed is the set unit number, then press ON/OFF button to quit unit number setting state, at this time, indoor unit is at OFF state, the display panel will display this unit number. For example, press SLEEP button once, it is No.
Page 59: Diagnostic Information And Troubleshooting
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 10. Diagnostic information and troubleshooting -59-...
Page 60 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -60-...
Page 61: Troubleshooting
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Troubleshooting: Trouble 1: No display on the operation panel start check if display replace display panel and the panel and check unit matched again well if the red diode if the power check the terminal and green diode terminal block is block and the...
Page 62 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Trouble 3: Communication failure between indoor and outdoor start as per the wiring re-wiring, and diagram, check if check again communication wiring is correct check if the if the power cable and the PCB is faulty, communication port communication wire are replace and...
Page 63 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Trouble 7: Outdoor unit failure Check the failure code on outdoor indicator board (5-lamp) Trouble 8: Outdoor unit alarms sensor failure start as per the wiring re-fix the diagram, check if sensor and connection port check again between sensor and PCB is correct...
Page 64 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Failure 11: Low pressure switch failure Reason: 1. Too low system pressure causes that the unit stops and the compressor protection works, the failure can be resumed. 2. Pressure switch wire is not fixed well or in open circuit. start check if the connector check if the 2...
Page 65: Electrical Data
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 1 1. Electric data  11.1 Wiring diagram Outdoor unit wiring diagram 0010576926 capacitor CRANKCASE 4-WAY AC FAN MOTOR HEATER VALVE reactor LED1 CN26 capacitor LED2 CN25 LED3 LED4 1 2 3 4 LED5 P(+) CN23 TO SPDU...
Page 66 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 11.2 Circuit diagram Outdoor circuit diagram: -66-...
Page 67 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Indoor circuit diagram: -67-...
Page 68 11.3 Sensor part number and their resistor value model name code sub-part code characteristic 1.R25=10KΩ±3% B25/50=3700K±3% suction temp. sensor 0010451513 001A3900059 2.R25=23KΩ±2.5% B25/50=4200K±3% AS072XVERA 1.R25=10KΩ±3% AS092XVERA B25/50=3700K±3% AS122XVERA coil temp. sensor 001A3900059 2.R25=23KΩ±2.5% B25/50=4200K±4% R25=10KΩ±3% liquid pipe temp. sensor 001A3800103 001A3900004 B25/50=3700K±3%...
Page 69 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA R80=50KΩ±3% R80=50KΩ±3% R25=10KΩ±3% R25=10KΩ±3% B25/80=4450K±3% B25/80=4450K±3% B25/50=3700K±3% B25/50=3700K±3% T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) 11600 536.6 -20℃ 90.79 6.95 10860 511.1 85.72 6.68 10170 486.9 80.96 5.43 9529 76.51 8932 442.3 72.33 5.59 8375 421.7...
Page 70 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA R25=23KΩ±2.5% R25=23KΩ±2.5% B25/50=4200K±3% B25/50=4200K±3% T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) 281.34 26.54 -20℃ 22℃ 263.56 25.3 -19℃ 23℃ -18℃ 247.04 24℃ 24.12 -17℃ 231.66 25℃ 217.35 21.94 -16℃ 26℃ 204.02 20.94 -15℃ 27℃ -14℃ 191.61 28℃ 19.99 -13℃...
Page 71: Performance Curves
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 12. Performance curves The data in the curves are measured with three indoor unit AS07+AS09+AS12 and AU182. Heating capacity curves 10000 9000 -6/-7 -4/-5 -1/-2 8000 7000 12/10 16/15 6000 5000 4000 16/10 18/12 20/14.5 21/15 22/16...
Page 72 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA Cooling capacity curves 8000 7000 6000 5000 4000 3000 2000 18/12 20/14 22/16 25/18 27/19 30/22 32/24 indoor DB/WB Power input curves in cooling mode 3000 2500 2000 1500 1000 18/12 20/14 22/16 25/18 27/19 30/22 32/24...
Page 73 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -73-...
Page 74 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA -74-...
Page 75: Noise Level
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 13. Noise level level pressure sound level pressure Sound -75-...
Page 76 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA level pressure sound level pressure Sound -76-...
Page 77 Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA level pressure sound level pressure Sound -77-...
Page 78: Air Velocity Distribution
Commercial Air Conditioner Model: AU18/222XFERA AS072/092/122XVERA 14. Air velocity and distribution unit m/s Fig 1 top view flow control panel horizal 0.25 lourer:center unit m/s 0.5 0.25 Fig 2 top view flow control panel horizontal lourer:right and left 0.25 unit m/s Fig 3 top view flow control panel horizontal...
Page 79 Commercial Air Conditioner Model: AU182XFERA AS072/092/122XVERA Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

This manual is also suitable for:

As092xvera Au182xfera Au222xfera As122xvera