Acson international A5MAC 210D User manual

Technical Manual
AIR COOLED
MODULAR CHILLER
A5MAC 210D
A5MAC 230D
A5MAC 340D
A5MAC 450D

1
Contents
Model Series ............................................................................................................................................................ 2
Nomenclature........................................................................................................................................................... 2
Overview................................................................................................................................................................... 2
Features.................................................................................................................................................................... 3
.......................................................................................................................................................... 5
Dimensions .............................................................................................................................................................. 8
Performance Data.................................................................................................................................................. 10
Water Pressure Drop Curve.................................................................................................................................. 13
Sound Data............................................................................................................................................................. 13
Wiring Diagrams .................................................................................................................................................... 14
Installation.............................................................................................................................................................. 19
Water System Installation..................................................................................................................................... 22
Commissioning and Operation ............................................................................................................................ 31
Maintenance........................................................................................................................................................... 32
Control System Instruction .................................................................................................................................. 35
Wired Controller Instruction................................................................................................................................. 38
Error Code.............................................................................................................................................................. 42
Note:
local codes and regulations, and experienced with this type of equipment.
Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them.
Warning: Moving machinery and electrical power hazard may cause severe personal injury or death.
Disconnect and lock off power before servicing equipment.
Literature No.: TM-A5MAC-D-201701
Supersedes: -

2
Model Series
Model Name Max Combination Qty Capacity Range
Cooling only
A5MAC210D 16 Cooling Capacity: 60kW - 960kW
Cooling Capacity: 205MBH - 3280MBH
Cooling Capacity: 65kW - 1040kW
Cooling Capacity: 222MBH - 3,552MBH
Cooling Capacity: 135kW - 2160kW
Cooling Capacity: 461MBH - 7378MBH
Cooling Capacity: 100kW - 1600kW
Cooling Capacity: 340MBH - 5440MBH
A5MAC230D 16
A5MAC450D 16
Heat Pump
A5MAC340DR 16
Nomenclature
A 5 MAC 450 D R - XXXX
Mode:
R: Heat Pump Model
Cooling only if empty
Design series: D
Product Description:
F: Power Supply: 380 ~ 415V/3N/50Hz
AA: Detailed Description
E: Export Model
Brand: Acson
Refrigerant Code:
5: R410A
Product Description
MAC: Modular Air Cooled
Capacity: MBH
Overview
ACSON A5MAC-D series is a new generation of air-cooled chillers/heat pumps. They ideally combine
the advanced and mature chiller technology. In addition, this series features outstanding performance, high
capacity, low sound level easy installation, and flexible system management. Leading the global market

3
Features
Refrigerant
ACSON is committed to protecting the global ecosystem and has developed air-cooled chiller/heat pump with
R410A, a new type of refrigerant. Without chlorine, the R410A causes no harm to the ozonosphere (ODP=0).
Low Sound Level
Thanks to the newly designed spiral blades, the outdoor units feature smooth air flow, signi cantly reducing the
turbulence and lowering the air flow sound level. Unique compressor sound-insulation design and fully hermetic
volute compressor minimizes the operation noise. Moreover, unique Night Mode brings down nightly noise greatly
and ensures you a sound sleep.
Easy Installation
A5MAC-D series is designed to best facilitate user installation. The refrigerant system is made hermetic in the factory.
Customers do not need to connect any copper pipe or re ll refrigerant or invest more money for complex water
systems.
Multi-grade Modulation
A5MAC-D series features multi-grade modulation which can be transformed to multi-grade modulations in modular
combinations. With operation grades controlled electronically, the unit exerts less shock to the power grid and
saves more energy.
Flexible module combination
1~16 sets with different capacity can be combined to satisfy the load selection requirements of various
applications. When combined with different models,every model can be used as the master unit; the modular
design of the unit allows the owner not to have to invest in the equipment at one time. The owner can increase the
investment at any time with the development. The number of modular and the corresponding equipment greatly
save the initial investment.
Compact Size
Moreover, A5MAC-D series features compact size. Its dimensions and weight are signi cantly reduced.
A5MAC-D series can be lifted without large lifting tools and located on the roof, balcony or any possible outdoor space.
Reliable Operation
A5MAC-D series have modulating capabilities and controlled starting. The unit also undergo strict QA tests to ensure
reliable operation even under extreme condition. There are also multiple sensors and unique algorithm to further
enhance the system reliability.
High static pressure fan (50Pa optional, for A5MAC340/450D)
It can meet the exhaust demand of the outdoor unit which shall be connected to the exhaust duct. By doing so,
it will minimize chances of air flow short circuited and performance of the unit become more reliable.

4
Outstanding Performance
A5MAC-D series features leading-edge scroll technology and branded accessories which go through our stringent
reliability and compatibility test. Equipped with efficient scroll compressors and precise electronic expansion valves.
These units feature high EER and COP, especially at partial loading.
Intelligent Control System
A5MAC-D features user-friendly intelligent control system. Microchip and large-scaled LCD display are used to
make the control easy.
■Group control: One single controller can control a group made up by one master unit and maximum 15 slave units.
■BMS: A5MAC-D is standard with Modbus protocol and ports for BMS, can support maximum 100 groups modular
units, one group can support one master unit and maximum 15 slave units (optional).
Basic Operating Mode
■Cooling
■Heating
Parameter Setting
■Real time setting
■Weekly timing on/off (two on/off per day)
■Chilled water inlet temperature
■Hot water inlet temperature
■Anti-freezing/defrost temperature setting
■Defrost point A/B temperature setting
Parameter Display
■Running status display
■Setted inlet temperature
■Actual inlet temperature
■Timing point
■Anti-freezing/defrost temperature
Fault Alarm And Protection
■13 protections and fault alam functions
■Indoor controller lock
Defrost Mode
■Auto defrost
■Mannual defrost
Memory Function
■Backup battery for realtime clock
■Customized parameters preservation after
power failure
Other Functions
■Error log inquiry
■Average compressor worn time
■Remote on/off
■Water system two-way valve control
■Auxiliary electric heating
NOTE:
■ THE LENGTH OF COMMUNICATION WIRE BETWEEN THE MASTER UNIT AND THE WIRED CONTROLLER IS 40M. THE LENGTH OF
COMMUNICATION WIRE ATTACHED TO THE SLAVE UNIT IS 5M.

5
General Data - R410A
MODEL A5MAC210D A5MAC230D
NOMINAL COOLING CAPACITY
Ton 17 18.5
kW 60 65
NOMINAL HEATING CAPACITY kW -- --
RATED POWER INPUT (COOLING) kW 18.8 19.2
RATED POWER INPUT (HEATING) kW -- --
EER Btu/h/W 10.9 11.5
COP W/W 3.19 3.39
RATED RUNNING CURRENT (COOLING) A 35.5 36.9
RATED RUNNING CURRENT (HEATING) A -- --
POWER SUPPLY V/Ph/Hz
REFRIGERANT
TYPE R410A
CHARGE kg/lb
17/37 17.2/37.9
WATER FLOW
COOLING m3/h 10.3 11.2
HEATING m3/h -- --
WPD (WATER PRESSURE DROP) kPa 38 44
UNIT DIMENSION L × W × H mm/in 1990 × 840 × 1840/78 × 33 × 72
PACKING DIMENSION L × W × H mm/in 2010 × 890 × 2010/79 × 35 × 79
NET WEIGHT kg/lb 520/1145 520/1145
GROSS WEIGHT kg/lb 570/1256 570/1256
OPERATING WEIGHT kg/lb 530/1167 530/1167
A5MAC340DR A5MAC450D
28.3 38.4
100 135
100 --
29.6 40.3
29.9 --
-- 11.4
3.38 3.35
54.4 76.1
55.8 --
380-415V/3N/50Hz
28.2/62 30.6/67.5
17.2 23.2
17.2 --
42 56
2100 × 1100 × 2300/83 × 43 × 90
2175 × 1150 × 2430/86 × 45 × 96
870/1914 940/2074
890/1958 960/2118
880/1936 950/2096
NOTES:
1. THE SPECIFICATIONS GIVEN IN THE TABLE WILL BE SUBJECT TO THE MODIFICATIONS ON PRODUCT DESIGN BY THE
MANUFACTURER.
2. NOMINAL COOLING CAPACITY CONDITION: LWT 7°C, WATER FLOW 0.172 [M3/(H•KW)], OUTDOOR TEMPERATURE 35°C.
3. NOMINAL HEATING CAPACITY CONDITION: LWT 45°C, WATER FLOW 0.172 [M3/(H•KW)], OUTDOOR DRY-BULB TEMPERATURE 7°C,
WET-BULB TEMPERATURE 6°C.

6
Components Data - R410A
MODEL A5MAC210D A5MAC230D A5MAC340DR A5MAC450D
EVAPORATOR
TYPE BRAZED PLATE HEAT EXCHANGER
PLATE MATERIAL STAINLESS STEEL
NOMINAL COOLING WATER FLOW m³/h 10.3 11.2 17.2 23.2
NOMINAL HEATING WATER FLOW m³/h -- -- 17.2 --
WATER VOLUME L 6.56 10.97
PIPING CONNECTION in Rc 2 Rc 2 1/2
UNIT WATER PRESSURE DROP kPa/psi 38/5.5 44/6.4 42/6.1 56/8.1
CONDENSER
COIL TUBE
MATERIAL COPPER
TYPE INNER GROOVE
OUTER DIAMETER mm 9.52 9.52 7.94 7.94
FIN
MATERIAL ALUMINUM
TYPE WHITE WHITE BLUE BLUE
ROWS 3
FIN PER INCH 16 16 14 14
TOTAL FACE AREA m2/ft23.43/36.9 7.13/76.7
CONDENSER
FAN
TYPE/DRIVE BROAD WHEEL AXIAL FANS WITH LOW NOISE
QUANTITY 2
BLADE MATERIAL GALVANIZED STEEL
MOTOR POLES 6
AIR VOLUME m3/ft3
12000/7059 19500/11470 19000/11177
COMPRESSOR
TYPE HERMETIC SCROLL COMPRESSOR
QUANTITY 2 3 4
REFRIGERANT
TYPE R410A
CHARGE kg 17 17.2 28.2 30.6
FLOW CONTROL TYPE EXV
NUMBERS OF CIRCUITS 2
OIL
MODEL POE
CHARGE L 3.25
CASING
COLOUR RAL 7032 PEBBLE GREY
MATERIAL EG
PROTECTION DEVICES H/L PRESSURE SWITCH/THERMAL AND
CURRENT OVERLOAD PROTECTOR
NOTE: ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE.

7
Electrical Data - R410A
MODEL A5MAC210D A5MAC230D
FAN MOTOR
RATED RUNNING CURRENT H/L A 2.5/1.7
MOTOR OUTPUT W 900
POLES (H/L) 6/10
FAN SPEED H/L RPM 780/477
COMPRESSOR
RATED RUNNING CURRENT A 19.22 20.8
LOCKED ROTOR AMP (LRA) A 115 124
IP/INSULATION GRADE
UNIT OPERATING CURRENT A 35.5 36.9
UNIT MAX RUNNING CURRENT A 44.5 47
A5MAC340DR A5MAC450D
3.96/2.64
1300
6
920 / 750
20.8
124
IPX4/F
54.3 76.1
78.1 103.2
NOTES:
1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE.
2) MAX RUNNING CURRENT IS TESTED UNDER BELOW CONDITION: COOLING OUTDOOR DRY-BULB TEMPERATURE 43°C;
HEATING DRY-BULB TEMPERATURE 21°C, WET-BULB TEMPERATURE 15.5°C.
3) THE RATED RUNING CURRENT AND POLES ARE TESTED IN THE HIGH SPEED AND LOW SPEED.
Safety Devices
MODEL A5MAC210D
A5MAC210D
A5MAC350DR A5MAC450D
SAFETY
DEVICE
HIGH PRESSURE
SWITCH
TYPE PSW,H20PS
OPEN MPa 4.15 ± 0.1
CLOSE MPa 3.11 ± 0.1
LOW PRESSURE
SWITCH
TYPE N/A
OPEN MPa N/A
CLOSE MPa N/A
PHASE SEQUENCER YES
DISCHARGE TEMPERATURE
SETTING °C/°F 130/266
NOTE: ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE.

8
B
1840
1575
空调出水 Rc2
335
A
950
1990
845
16
地脚螺栓固定孔 14-14x 20
45
170
950
101101
16
877
840
空调进水 Rc2
265
14x20 地脚螺栓固定孔放大图
20
170 45 14
B
335
Air-conditioner
water outlet Rc2"
A
Mounting hole of anchor bolt 14-14x20
14x20 Enlarged drawing for
Mounting hole of anchor bolt
Air-conditioner
water outlet Rc2"
Air-conditioner
water entry Rc2"
Unit: mm
Model A (mm) B (mm)
A5MAC210D
171 369
A5MAC230D
Dimensions
Modular Air Cooled Chiller/Heat Pump
A5MAC210D, A5MAC230D

9
Unit: mm
Modular Air Cooled Chiller/Heat Pump
A5MAC340D
A5MAC450D
Model A(mm) B(mm)
A5MAC340DR 164 369
Water outlet
Wiring port
Water inlet
RC 2 1/2
RC 2 1/2

10
Performance Data
Operating Range
A5MAC210/230D
A5MAC340/450D(R)
(Fig 1)
(Fig2)
5 10 15 20 25 30 4035 45 50 55 60 65
-10
-5
0
5
(

)
10
15
20
25
30
35
40
45
48
Heating
Cooling
Ambient temp
Leaving water temp (  )
Note: Ensure that the water flow is within
flow is too
small, scale may accumulate and degrade
the performance of the unit, cause the
antifreeze device to activate, or cause rust
points and refrigerant leakage. If the water
flow is too large, the unit may be corroded
due to water impact.
The grey area at the lower left corner of
refrigeration operation scope: the ambient
temperature is less than 15 ºC, and outlet
water temperature is less than 7 ºC,
and the unit will be under deloading
operating status.

11
Model
Outlet
water
temp (°C)
Ambient temp. (°C)
15°C 20°C 25°C 30°C 35°C 40°C 45°C 48°C
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
Power
Input
(kW)
Cooling
capacity
(kW)
"Power
Input
(kW)"
A5MAC210D
5 70.6 13.6 66.5 14.7 62.9 16 59.4 17.2 55.3 18.5 50.9 20.1 46.3 21.8 42.4 23.1
7 75 13.8 71 14.9 66.9 16.3 63.4 17.5 60 18.8 55.6 20.4 50.9 22.1 46.9 23.4
9 79.8 14.1 75.7 15.2 71.6 16.5 68.4 17.8 64.9 19 60.8 20.7 55.8 22.4 51 23.7
12 86.7 14.6 82.5 15.7 78.6 17 75 18.3 71.6 19.5 67.2 21.3 61.8 23 56.7 24.1
15 93 14.9 89.7 16.1 86.5 17.4 82.6 18.7 78.7 20 73.7 21.9 68 23.7 63.5 24.7
20 103.5 15.4 101.7 16.8 99.7 18.1 95.3 19.4 90.5 20.8 84.5 22.9 78.3 24.9 74.8 25.7
A5MAC230D
5 72.5 14.2 70.3 15.2 68.1 16.2 64.7 17.4 60.9 18.8 56 20.5 51.3 22.2 46.3 23.6
7 77.2 14.6 75 15.6 72.8 16.6 69.4 17.8 65 19.2 60.4 21 55.1 22.6 50.2 24.1
9 82 15 79.9 16 77.1 17 73.5 18.1 69.5 19.6 64.7 21.3 59.3 23 54.4 24.3
12 90.1 15.5 88 16.4 85.3 17.5 81.7 18.5 76.4 20 71.6 21.7 65.8 23.4 60.9 24.8
15 98.6 16.1 96.7 17.1 93.8 18 89.7 19.1 84.7 20.5 79.1 22.2 73.3 23.9 67.6 25.2
20 112.8 17.1 111.2 18.3 108 18.8 103 20.1 98.5 21.3 91.6 23 85.8 24.7 78.8 25.9
A5MAC340DR
5 119.9 20.5 113.6 22.1 105.5 25.5 99.4 27.6 94.1 30 86.2 32.7 78.6 35.6 73.8 37.7
7 126.4 21.4 121.5 23 111.8 26 106.5 28.2 100 29.6 93.6 33.1 86.1 36 81.3 37.9
9 132.7 22.3 127.1 23.9 118.7 26.8 113.4 28.7 107.5 31 100.8 33.5 93.4 36.3 88.6 38.2
12 141.5 23.6 136.2 25.1 128.7 27.6 123.2 29.5 116.5 31.7 111 34.1 103.8 36.8 99.1 38.6
15 150 24.9 145 26.2 137.3 28.7 132.5 30.4 126.9 32.4 120.6 34.7 113.3 37 - -
20 163.4 27 158.1 28.1 150.2 29.6 146.5 31.7 142 34.2 135.2 35.7 128.5 38.1 - -
A5MAC450D
5 157.3 28.6 151.9 30.4 141.9 34.1 135 36.6 126.9 39.6 117.7 43.1 107.3 47 100.4 49.6
7 168.1 29.4 161.9 31.2 150.8 34.8 143.5 37.3 135 40.3 125.2 43.7 114.3 47.6 107.3 50.2
9 179.3 30.4 172.1 32 160.1 35.6 152.3 38.1 143.3 41 133.1 44.4 121.8 48.4 114.3 50.8
12 196.6 31.8 188 33.5 174.6 36.9 166.1 39.4 156.4 42.3 145.5 45.6 133.4 49.4 125.6 52
15 214.5 33.4 204.4 34.9 189.6 38.3 180.4 40.7 170 43.6 158.5 46.9 145.7 50.6 - -
20 245.6 36.3 233.2 37.7 216.1 40.9 205.8 43.3 194.2 46.1 181.4 49.3 167.5 53 - -
Cooling Capacity Performance Table

13
Water Pressure Drop Curve
A5MAC210/230D
A5MAC340/450D(R)
NOTES:
1) THE WATER PRESSURE DROP OF THE UNIT IS THE TEST RESULT WHEN A PLATE HEAT EXCHANGER AND THE ACCESSORY
Y-SHAPED FILTER ARE INSTALLED.
2) THE WATER RESISTANCE OF THE PLATE HEAT EXCHANGER AND THE Y-SHAPED FILTER ARE TESTED WITH PURE WATER.IF
THE ONSITE WATER QUALITY CHANGES, THE TEST RESULT MAY BE DIFFERENT FROM THAT SHOWN IN THE FIGURE.
Sound Data
0
10
20
30
40
50
60
70
80
90
7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16
Water pressure drop (kPa)
Water flow (m³/h)
Water pressure drop
A5MAC210D
A5MAC230D
A5MAC450D
A5MAC340DR
Test condition: Octave band level noise is tested base on 11.5dB(A) background noise semi-anechoic room.
Acoustic Noise
Units
Octave Band Level (dB,ref20μPa) dB(A)
63Hz 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz Overall
A5MAC210D 44.9 51.1 56.1 58.7 57.2 55.2 51.5 41.7 63.7
A5MAC230D 45.3 52.6 56 60.6 60.8 58.7 50.2 41.2 65.8
A5MAC340DR 53.4 53.5 59.1 60.0 62.8 58.1 52.6 45.2 67
A5MAC450D 54.3 55.0 60.4 61.2 65.4 60.8 54.0 46.7 69

14
Wiring Diagrams
MODEL: A5MAC210/230D

16
14 53
27 86
14 53
27 86
A5MAC340DR

17
14 53
27 86
14 53
27 86
A5MAC450D

19
Installation
Working Condition
Item Description
Power supply voltage 380 - 415V
Power supply frequency Rated frequency ± 1%
Variations between phases Rated voltage ± 2%
Air quality Must not contain solute that can corrode copper, aluminum or iron.
Flow rate of chilled water 0.5 - 2.0m/s
Pressure of chilled water < 0.7MPa
Quality of chilled water Must not contain solute that can corrode copper, iron, or welding material.
For details on the water quality requirements, see "Water Quality Requirement."
Installation site Take anti-snow and ventilation measures as required.
Ambient temp. Refer to the Performance Data Operating Range.
Relative humidity < 90%
NOTES:
1. THE UNIT IS UNDERGO STRINGENT QUALITY TESTS BEFORE DELIVERY AND CAN WORK SAFELY IN THE RATED
WORKING CONDITIONS.
2. FOR THE PERFORMANCE PARAMETERS OF THE UNIT IN DIFFERENT WORKING CONDITIONS, REFERENCE TABLE FOR
PERFORMANCE PARAMETERS.
3. THIS IS THE NORMAL OPERATING TEMPERATURE RANGE FOR THE UNIT. BEYOND THIS TEMPERATURE RANGE, THE UNIT CAN
ONLY OPERATE FOR A SHORT MOMENT BEFORE A FAILURE ALARM IS TRIGGERED.
Installation Dimensions and Environment Limits
Machine Installation Space
Units must be installed by ACSON service staff or specially trained personnel. Units must installed by following
relevant local electric, building and environment protectionstandards as well as the installation manual.
NOTE:
1. THE GROUNDWORK MUST BE A CONCRETE FLOORORA V-IRON
STRUCTURE THAT IS STRONG ENOUGH TO BEARTHE OPERATION
PRESSURE OF THE UNIT.
2. N REPRESENTS THE NUMBEROF MODULES INSTALLED.
3. EACH UNIT MUST BE FIXEDBY 4 M12 BOLTS;
-6 RUBBER CUSHIONS OF 20MM THICK MUST BE INSTALLED
BETWEENTHE UNIT AND THE GROUNDWORK.
-THE GROUNDWORK MUST HAVE DRAINING FACILITIES TO
DISCHARGE CONDENSATE WATERAND DEFROSTING WATER.
Assembling Unit Modules
845
>2460
1560
845
50
845
地脚螺 栓
M12x200
300
>400
400400
365 365
>1245x(N-1)
>1245x( N-1)+ 1575
845
>2460
1560
845
50
845
地脚螺 栓
M12x200
300
>400
400400
365 365
>1245x(N-1)
>1245x( N-1)+ 1575
845
>2460
1560
845
50
845
地脚螺 栓
M12x200
300
>400
400400
365 365
>1245x(N-1)
>1245x( N-1)+ 1575
845
>2460
1560
845
50
845
地脚螺 栓
M12x200
300
>400
400400
365 365
>1245x(N-1)
>1245x( N-1)+ 1575
>Cx(N-1)+D
>Cx(N-1)
A AB
B
B
A
Installation clearance Unit: mm
A B C D
A5MAC210/230D
Model
845 400 1245 1575
A5MAC340/450D(R) 1056 544 1600 1786

20
Space Allocated for A Single Chilled Water Unit
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
＞
≥
≥ ≥
L1
≥ L3
≥
L1
≥ L2
L1
前面
后面
前面
前面
Deflector
> L4
Front
Front
Back
Front
Space Allotted for An Array of Chilled Water Units
前面 前面
后面 后面 后面 后面
≥ L2 ≥ L3
≥ L2
≥
L1
≥
L1
≥
L1
≥
L1
前面 前面
后面 后面 后面 后面
≥ L2 ≥ L3
≥ L2
≥
L1
≥
L1
≥
L1
≥
L1
前面 前面
后面 后面 后面 后面
≥ L2 ≥ L3
≥ L2
≥
L1
≥
L1
≥
L1
≥
L1
前面 前面
后面 后面 后面 后面
≥ L2 ≥ L3
≥ L2
≥
L1
≥
L1
≥
L1
≥
L1
L1 L2 L3 L4
A5MAC210/230D
Model
400 800 100 1000
A5MAC340/450D(R) 500 800 600 1200
Unit: mm

■KEEP CLEAR FROM THE HEAT EXCHANGER AS IT MIGHT GET DAMAGED AND POTENTIAL HEALTH HAZARD.
21
Installing Chiller
■The user manual, warranty card, accessories, and packing list are place at the right side of the unit.
■
■If the unit is installed in a place where it snows during winter, proper measures must be taken to protect the
unit against snow and ensure that the unit works properly.
■The groundwork should be made of concrete or supporting structures. While designing the groundwork, you
must fully consider the strength of the floor, water discharge (the unit discharges water
while working), pipelining and wiring. If the foundation is not strong, the unit might fall
off and breakdown, even incur bodily injuries.
■Screw down the chilled water unit using anchor bolts so that it will not fall off in case of
strong wind or earthquakes. In order to minimize damages cause by mother nature, it is
advise to installed the unit in places that can minimize weathering effects.
■The unit will vibrate during operation and it might transfer through the groundwork
causing noises in the floor or walls. Therefore, proper vibration dampening mechanisms
(such as bumper cushion, bumper frame etc.) should be in place.
■Corners and edges should be properly installed. Otherwise, the unit might get unbalanced and cause the
grounding pins to bend. The unit might fall off and cause bodily injuries if it is not properly installed.
Hoisting the Chiller
Please hoist the unit according to the following illustrations. Tie the cables to the four corners of the unit while
moving it. If you tie the cables to only two corners of the unit, the unit might get unbalanced and fall off.
NOTES:
■CHILLED WATER UNITS MUST BE MOVED WITH GREAT CARE.
■ ACCESSORY STRIPS AND/OR STRAPPING TAPES THAT COME WITH THE UNIT IS NOT FOR HOISTING PURPOSES.
ANY ATTEMPT TO USE IT TO MOVE THE UNIT MIGHT BREAK AND CAUSE ACCIDENTS.
Keep clear from the heat exchanger as it might get damaged and potential health hazard.
■DISPOSE ALL PLASTIC BAGS PROPERLY AND KEEP THEM AWAY FROM CHILDREN.
■DUE TO THE DIFFERENT APPEARANCE OF THE UNIT, THE ABOVE HOISTING PICTURE IS ONLY FOR REFERENCE.

22
Water System Installation
Water Quality Requirements
Water inside the chilled water system must be clean/soft to prevent formation of scale. Scaling/fouling will degrade
performance of the chiller and increase resistance. This will eventually affects both the flow rate and performance of
the water pumps. The concentration of foreign elements should be kept to minimum, the characteristic of the water
should be as follow:
Item Benchmark value
Tendencies
Corrosion Scaling
Benchmark items
pH (25°C) 7.0 - 9.0
Conductivity
(25°C) μS/cm < 800
Cl-mg (Cl-)/L < 200
SO4
2- mg (SO4 2-)/L < 200
Acid consumption
mg (CaCO3)/L < 100
(pH = 4.8)
Total hardness mg (CaCO3)/L < 200
Reference items
Fe mg (Fe)/L < 1.0
S2- mg (S2-)/L 0
NH4
+mg (NH4 +)/L < 1.0
SiO2mg (SiO2)/L < 50
NOTE: ○REPRESENTS FACTORS THAT MAY CAUSE CORROSION OR SCALING.
Water System Installation Schematic Diagram
Connecting Water Pipes
■Water pressure gauges and thermocouples/thermistor must be installed at the water inlets and outlets tofacilitate
the reading of unit operation status.
■Water pump is field supply. Sizing of the water pump is important to overcome resistance of the water pipes
■The heat exchanger at the water side is made of stainless steel. Water scale may accumulate depends on the
water quality and must be cleaned using chemicals from time totime. Therefore, achemical cleaning pipe
connector needs to be installed at the water pipes (please refer tothe following diagram)