Haier AV10IMWEWA User manual

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

1
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

2
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

3
• 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

4
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.

5
℃
f i l
50℃
45
℃
45
℃
40℃
Temperature range o
f
water
i
n
l
et
7～45℃
45
℃
40℃
35℃
Condensing unit ambient
temperature range
30℃
25℃
℃
0～40℃
Temperature range of indoor
20
℃
15℃
10℃
7
℃
Cooling:19～27℃
(Heating: 15～20℃)
The condensing unit water flow range is
50
～
150L
／
min
（
Standard 96L/min)
5℃
0℃
7
℃
0℃
50
～
150L
／
min
（
Standard 96L/min)
1.2.5 Water pump controlled together with the outdoor
The reserved water pump linkage control realizes the pump linkage control, reduces the energy consumption and
eliminates hidden risks.
1.2.6 High reliability
Wide operation range
1.2.7 High convenience (use/installation/service)
• Various mode and priority selection.
• The outdoor units are smaller and can be staked, reducing the installation space and increasing the customers usable
space.

6
When the outdoor unit is installed above the indoor units, the maximum height should be 50m
Max. drop:5m
Outdoor 1
Outdoor 1
Outdoor 2 Outdoor 3
L2
L3
L4
L5
L6 L8
A
B
C
DE
F
L9
L10
L11
L12
L14 L15
L13
L7
L1
Max. drop:15m
When the outdoor unit is installed below the indoor units, the maximum height should be 40m
Should
be less
than 2m
Over
200mm Over
200mm
Should
be less
than 2m
When the distance between outdoors is over 2m, the oil trap must be set
(upright projecting pipe, 200mm high), as the gure:
Max. length Pipe in above figure
Single way total pipe length 300
L1+L2+ L3+ L4+ L5+ L6+ L7+L8+ L9+ L10+ L11+ L12+
L13+ L14+ L15
Single way max. pipe equivalent length 150 L1+ L3+ L5+ L7+ L14+ L13
Max. pipe length after 1st branch pipe 40 L7+L13+L14
Main pipe equivalent length 110 L5
Height difference between indoors 15 --
Height difference between outdoors 5 --
1.2.8 Allowable pipe length and height difference

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1.2.10 Reliable performance
a. High COP
High efficiency and great energy saving are always the purchased aim for each York air conditioning system. York
Amazon VRF has been designed to get high COP from the reasonable structure and the excellent electric system
COP
380V/3Ph/50/60Hz
8HP 6.16
10HP 5.47
12HP 4.90
b. Approved for RoHS certificate
All the parts in the unit have been approved for RoHS certificate. The parts are in conformance with RoHS directive.
Thus York Amazon VRF will be environmental for human and nature.
The directive is to approximate the laws of the Member States on the restrictions of the use of hazardous substances
in electrical and electronic equipment and to contribute to the protection of human health and the environmentally
sound recovery and disposal of waste electrical and electronic equipment.
c. Less chance of refrigerant leakage
The connection type of outdoor gas stop valve is brazed, therefore it is not easy to leak any refrigerant.
d. Operation condition:
To use the air conditioner normally. Please perform as to the below conditions.
1.2.9 Easier maintenance
a. Backup operation
If one outdoor unit malfunction happens, the other units provide emergent operation until repair achieved. In one
model system, also can realize back up operation when fix speed compressor error happens.
b. Auto check function.
Failure codes displayed by LED in outdoor PCB or controllers are so detailed for us to find the fail place more quickly,
and can judge the failure content easily.

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Operation Range of Air Conditioner
Condition Cooling Heating
Outdoor Environment temperature 0-40°C
Outdoor Environment humidity <80%
Indoor Temperature 17-32°C 15-30°C
Water Inlet Temperature 7-45°C
Water Flow Rate Range
8HP: 2.4-7.2m3/h
10HP: 3.0-9.0m3/h
12HP: 3.6-10.8m3/h
Water Pressure Drop
8HP: 35kPa
10HP: 40kPa
12HP: 45kPa
Max Water Pressure 1.96MPa

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1.3 Products Lineup
1.3.1 Outdoor Units
Appearance Power supply
(Ph, V, Hz) Model Capacity(kW) Refrigerant
3Ph, 380V,
50/60HZ
AV08IMWEWA 22.4
R410A
AV10IMWEWA 28
AV12IMWEWA 33.5
AV16IMWEWA 44.8
AV18IMWEWA 50.4
AV20IMWEWA 56
AV22IMWEWA 61.5
AV24IMWEWA 67.0
AV26IMWEWA 72.8
AV28IMWEWA 78.4
AV30IMWEWA 84.0
AV32IMWEWA 89.5
AV34IMWEWA 95.0
AV36IMWEWA 100.5