Haier AV10IMWEWA User manual

Commercial Air Conditioning
Design, Installation & Maintenance instruction
WATER-COOLED
SYJS-09-2014REV.A Edition:201409

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Contents
1. General Information................................................................................................................................ 2
1.1 Safety................................................................................................................................................ 2
1.2 Feature ............................................................................................................................................. 4
1.3 Products Lineup................................................................................................................................ 9
2. Specication ..........................................................................................................................................11
3. Dimension............................................................................................................................................. 16
4. Piping diagram...................................................................................................................................... 21
5. Wiring diagram ..................................................................................................................................... 23
6. Field wiring ........................................................................................................................................... 24
7. Operation range.................................................................................................................................... 25
8. Sound pressure level............................................................................................................................ 26
9. Capacity calculation due to capacity modication coefcient............................................................... 27
10. Outdoor cooling capacity table ........................................................................................................... 31
11. Outdoor heating capacity table..........................................................................................................115
12. Installation ........................................................................................................................................ 199
13. Branch pipe dimension..................................................................................................................... 232
14. Gather pipe dimension ..................................................................................................................... 234
15. Outdoor PCB photo .......................................................................................................................... 235
16. Outdoor PCB dip switch setting........................................................................................................ 236
17. Outdoor unit control.......................................................................................................................... 246
18. Failure code...................................................................................................................................... 248
19. Troubleshooting................................................................................................................................ 258
APPENDIX I Accessories list.................................................................................................................. 285
APPENDIX II Sensor Resistance Table.................................................................................................. 287

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1.1 Safety
• This manual should always be accessible and close to this air condition equipment.
• There are two types of indications, " WARNING" and " CAUTION". The indication preventing from death or
heavy injury is listed as " WARNING". Even the indication listed as " CAUTION" may also cause serious accident.
Both of them are related to safety, and should be strictly followed.
•After installation and start-up commissioning, please handover the manual to the user. The manual should be well
kept in safe place and close to the unit.
• The installation or the maintenance should be performed by an authorized agency. The wrong operation of this air
condition equipment may cause water leakage, electric shock or fire.
• Please install the unit on the top of a solid foundation or structure which is strong enough to support the unit.
• The installation of this air condition equipment should follow local construction codes.
• Use the right cable size, secure the terminal firmly, organize the cables well and make sure no tension is added on
cables. Cable insulation should not be damaged. The incorrect installation may lead to overheat or fire.
• When installing or moving the unit, the refrigerant system should be vacuumed and recharged with R-410A
refrigerant. If any other gas enters the system, it may lead to abnormal high pressure which may cause damage or
injury.
• Please use the proper manifolds or branches during the system installation. The wrong parts may cause refrigerant
leakage.
• Keep the drain pipe away from toxic gas vents to prevent possible pollution of indoor environment.
• During or after the installation, please check whether there is refrigerant leakage. If any leakage, please take any
measures for ventilation. The refrigerant may be toxic at some concentration levels.
• The unit is not explosion-proof. Please keep it away from flammable gases.
• The drain pipe should be installed per this manual to ensure proper drainage. The pipe should be well insulated to
avoid condensation. Wrong installation may lead to water leakage.
Both liquid pipe and the gas pipe should be also well insulated. Not enough insulation may lead to system performance
deterioration or humidity formation.
• This air condition equipment is not intended to be operated by persons with lack of experience and training, unless
they have supervision or instruction concerning use of this air condition equipment.
• Please keep children away from this air condition equipment.
WARNING
1. General Information

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• Grounding wire should be connected with the grounding bar. The grounding wire can not be connected to the gas
pipe, water pipe, lightening rod or the telephone grounding wire. Improper grounding may cause electric shock.
• Units installed on roof should have appropriate access and handrail.
• Use the wrench to fasten the nut and flare at proper torque. Excessive torque may cause flared section to broke
leading to refrigerant leakage.
• After refrigerant pipe installation, please take nitrogen leakage test to avoid refrigerant leakage.
• R-410A is the only permitted refrigerant.
• To avoid mischarging wrong refrigerant, the check valve diameter is changed for R-410A. To strengthen the pipe, the
flared pipe dimension is also changed. Please use R-410A specified tools as shown below.
• When charging refrigerant, the refrigerant must be in liquid state from the tank.
• To prevent EMC interference on other appliances, please keep indoor unit, outdoor unit, power cable and connecting
wire at least 1m away from those appliances.
• Fluorescent lamp (reverse phase or rapid start type) may interfere with the remote controller's signal. Please install
indoor unit away from fluorescent lamp. The farther the better.
R-410A specified tools Remarks
1Gauge manifold Range: HP>4.5MPa,LP>2MPa
2Charge hose Pressure: HP 5.3MPa, LP 3.5MPa
3Electronic weight for charging R-410A No other means permitted
4 Torque wrench
5 Flare tool
6Copper pipe gauge for adjusting projecting margin
7Vacuum pump fitting Vacuum pump must be equipped with check valve
8Leakage detector Only Helium detector permitted
CAUTION

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1.2.2 Double EEVs control
The double EEVs control the 2 stages heat exchanger separately, which can adjust the condenser volume and optimize
system performance.
1.2.3 Energy Saving: Heat recovery between different refrigerant system
Heat recovery is achieved within the water loop among different refrigerant systems, higher whole system efficiency
due to cooling and heating simultaneously in different refrigerant systems.
1.2 Feature
1.2.1 User friendly outdoor structure
Compact inner structure and core parts.