Midea MGA-F30W/SN1 User manual

MCAC-2008-11 Air-cooledModularChiller
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Contents
1. Nomenclature…………..………………………………………………...
2. Product Schedule………………………………………………………..
3. Features…………………………………………………………………...
4. Specification……………………………………………………………...
5. Dimension…………………………………………………………………
6. Piping Diagrams & Pipe Connection Drawing……………………...
7. Wiring Diagrams……………………….………………………………..
8. Electric Characteristics…………………………………………….......
9. Capacity Tables…………………………………………………………
10. Exploded View………………………………………………………….
11. Troubleshooting……………..…………………………………………
12. Installation……………………………..………………………………..
13. Debugging...…………………………..………………………………
14. Maintenance…..…………………………..……………………………
15. Control……………………………..…………………………………….
※Manufacture reserves the right to discontinue, or change at any time, specifications or designs without
notices and without incurring obligations.

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1. Nomenclature
Refrigerant
N1 R410A
-- R22
Power Supply
S380V~,50Hz,3Ph
Outdoor Unit
Cooling Capacity(kW)
Compressor Type
DDigital Scroll Compressor
F Fixed speed Scroll Compressor
Modular Air-Cooled Chiller System
A Time A Design
Light Commercial Chiller System
Midea
M G A - D 65 W/S N1

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2. Product Schedule
Net dimension Net weight
No Model Refrigerant
(L×W×H) (unit: mm) (kg) Power supply
1 MGA-F30W/SN1 R410A 1514×850×1820 440 380-415V/3ph/50Hz
2 MGA-F65W/SN1 R410A 2492×850×1820 700 380-415V/3ph/50Hz
3 MGA-D30W/SN1 R410A 1514×850×1820 440 380-415V/3ph/50Hz
4 MGA-D65W/SN1 R410A 2492×850×1820 700 380-415V/3ph/50Hz
External appearance:
30 kW module 65kW module

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3. Features
Environmental-friendly refrigerant R410A will not destroy the ozonosphere.
Modular design, flexible combination, more convenient for design and installation.
The maximum combination of the system consists of 1 main unit and 7 slave units (for 30kW
unit, 15 slave units, so maximum capacity can reach 520kW).
Adopts digital scroll compressor, the capacity can be realized stepless adjustment.
Chilled water outlet temperature adjustable.
Chilled water outlet temperature can be adjusted by wire controller according to customer’s demand.
In cooling mode, the adjustable range from 5℃-17℃, and in heating mode, it ranges from 45℃-50℃.
High reliability and efficiency.
Digital and constant module unit can be combined into one group water pipe system and control system.
The capacity output can be adjusted and the load of different module unit can be distributed uniformly
by control system. The unit system can adjust output according to requirement without energy waste.

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Easy connection between main unit and slave units.
Connecting all the units together with a wired controller in series type.
Using two-core shielded twisted wire as communication signal wire.
Any of unit can be set as main unit by setting its address No.0, the other as slave units.
Strong micro-computer intelligent control and monitor function.
¾Stepless capacity modulation, more efficiency.
¾Operation mode control.
¾Automatic and uniform adjusting function among multi compressors.
¾Anti-frost and anti-cold air functions in heating mode.
¾Anti-freezing function of water system in winter.
¾Self-protection and Self-diagnosis function.
¾Realize auto-restart function with wired controller.
¾Built-in remote ON-OFF switch.

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4. Specification
For fix speed heat pump 30kW module:
MGA-F( )W/SN1
Model
30 60 90 120 150 180 210 240
Combination (Main module + auxiliary module) Pieces 1+0 1+1 1+2 1+3 1+4 1+5 1+6 1+7
Cooling Capacity kW 30 60 90 120 150 180 210 240
Heating Capacity kW 32 64 96 128 160 192 224 256
Power supply V/Ph/Hz 380-415/3/50
Type Scroll (fixed speed)
Compressor
Quantities Pieces 2 4 6 8 10 12 14 16
Cooling kW 10 20 30 40 50 60 70 80
Power input
Heating kW 9.8 19.5 29.3 39 48.8 58.5 68.3 78
Type R410A
Refrigerant
Weight kg 7 7×2 7×3 7×4 7×5 7×6 7×7 7×8
Air side heat-exchanger type Copper-fin-coil
Quantities of fan motor Pieces 1 2 3 4 5 6 7 8
Air flow volume ×103m3/h 12 24 36 48 60 72 84 96
Condenser
(Air side)
Fan motor input kW 0.7 0.7×2 0.7×3 0.7×4 0.7×5 0.7×6 0.7×7 0.7×8
Water side heat-exchanger type Plate type
Water resistance loss kPa 18 18 18 18 18 18 18 18
Water inlet/outlet pipeline diameter mm 133 133 133 133 133 133 133 133
Water flow volume m3/h 5.2 10.3 15.5 20.6 25.8 30.9 36 41.2
Max. Pressure MPa 1 1 1 1 1 1 1 1
Evaporator
(Water side)
Water pipe connection type Soft connection
L mm 1514 1514 1514 1514 1514 1514 1514 1514
W mm 850 2300 3750 5200 6650 8100 9550 11000
Dimension
H mm 1820 1820 1820 1820 1820 1820 1820 1820
Packing size L×W×H mm 1620×1034×2041
Net weight kg 440 880 1320 1760 2200 2640 3080 3520
Weight
Operating weight kg 470 940 1410 1880 2350 2820 3290 3760
Power wiring mm2×No. 10×5-coreConnection
wiring Signal wiring mm2×No. 0.75×3-core
Control type Wired controller
Safety protection device
High/low-pressure switch, anti-frost protection, water-flow switch, over-load
protection, and power phases sequence protection.
Power supply V/Ph/Hz 380/3/50Electric
heater
(optional)
Power input W 7.5 15 22.5 30 37.5 45 52.5 60
Noise level dB(A) 58
Operation water temp ℃Cooling：5～17 Heating：45～50
Ambienttemp ℃Cooling：17～48 Heating：-10～21
Note: Please refer to the water flow volume in the above table strictly to design and install.

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For fix speed heat pump 30kW module:
MGA-F( )W/SN1
Model
270 300 330 360 390 420 450 480
Combination (Main module + auxiliary
module)
Pieces 1+8 1+9 1+10 1+11 1+12 1+13 1+14 1+15
Cooling Capacity kW 270 300 330 360 390 420 450 480
Heating Capacity kW 288 320 352 384 416 448 480 512
Power supply V/Ph/Hz 380-415/3/50
Type Scroll (fixed speed)
Compressor
Quantities Pieces 18 20 22 24 26 28 30 32
Cooling kW 90 100 110 120 130 140 150 160
Power input
Heating kW 87.8 97.5 107.3 117 126.8 136.5 146.3 156
Type R410A
Refrigerant
Weight kg 7×9 7×10 7×11 7×12 7×13 7×14 7×15 7×16
Air side
heat-exchanger type
Copper-fin-coil
Quantities of fan
motor
Pieces 9 10 11 12 13 14 15 16
Air flow volume ×103m3/h 108 120 132 144 156 168 180 192
Condenser (Air
side)
Fan motor input kW 0.7×9 0.7×10 0.7×11 0.7×12 0.7×13 0.7×14 0.7×15 0.7×16
Water side
heat-exchanger type
Plate type
Water resistance loss kPa 18 18 18 18 18 18 18 18
Water inlet/outlet
pipeline diameter
mm 133 133 133 133 133 133 133 133
Water flow volume m3/h 46.4 51.5 56.7 61.8 67 72.1 77.3 82.4
Max. Pressure MPa 1 1 1 1 1 1 1 1
Evaporator
(Water side)
Water pipe
connection type
Soft connection
L mm 1514 1514 1514 1514 1514 1514 1514 1514
W mm 12450 13900 15350 16800 18250 19700 21150 22600
Dimension
H mm 1820 1820 1820 1820 1820 1820 1820 1820
Packing size L×W×H mm 1620×1034×2041
Net weight kg 3960 4400 4840 5280 5720 6160 6600 7040
Weight
Operating weight kg 4230 4700 5170 5640 6110 6580 7050 7520
Power wiring mm2×No. 10×5-coreConnection
wiring Signal wiring mm2×No. 0.75×3-core
Control type Wired controller
Safety protection device
High/low-pressure switch, anti-frost protection, water-flow switch, over-load protection, and
power phases sequence protection.
Power supply V/Ph/Hz 380/3/50Electric heater
(optional) Power input W 67.5 75 82.5 90 97.5 105 112.5 120
Noise level dB(A) 58
Operation water temp ℃Cooling：5～17 Heating：45～50
Ambienttemp ℃Cooling：17～48 Heating：-10～21
Note: Please refer to the water flow volume in the above table strictly to design and install.

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For fix speed heat pump 65kW module:
MGA-F( )W/SN1
Model
65 130 195 260 325 390 455 520
Combination (Main module + auxiliary
module)
Pieces 1+0 1+1 1+2 1+3 1+4 1+5 1+6 1+7
Cooling Capacity kW 65 130 195 260 325 390 455 520
Heating Capacity kW 69 139 207 276 345 414 483 552
Power supply V/Ph/Hz 380/3/50
Type Scroll (fixed speed)
Compressor
Quantities Pieces 4 8 12 16 20 24 28 32
Cooling kW 21.5 43 64.5 86 107.5 129 150.5 172
Power input
Heating kW 21 42 63 84 105 126 147 168
Type R410A R410A R410A R410A R410A R410A R410A R410A
Refrigerant
Weight kg 14 14×2 14×3 14×4 14×5 14×6 14×7 14×8
Air side heat-exchanger type Copper-fin-coil
Quantities of fan motor Pieces 2 4 6 8 10 12 14 16
Air flow volume ×103m3/h 24 24×2 24×3 24×4 24×5 24×6 24×7 24×8
Condenser
(Air side)
Fan motor input kW 0.7×2 0.7×4 0.7×6 0.7×8 0.7×10 0.7×12 0.7×14 0.7×16
Water side heat-exchanger
type
Plate type
Water resistance loss kPa 29.4 29.4 29.4 29.4 29.4 29.4 29.4 29.4
Water inlet/outlet pipeline
diameter
mm 133 133 133 133 133 133 133 133
Water flow volume m3/h 11.2 22.4 33.6 44.8 56 67.2 78.4 89.6
Max. Pressure MPa 1 1 1 1 1 1 1 1
Evaporator
(Water side)
Water pipe connection type Soft connection
L mm 2492 2492 2492 2492 2492 2492 2492 2492
W mm 850 2300 3750 5200 6650 8100 9550 11000
Dimension
H mm 1820 1820 1820 1820 1820 1820 1820 1820
Packing
size
L×W×H mm 2612×1034×2041
Net weight kg 700 1400 2100 2800 3500 4200 4900 5600
Weight
Operating weight kg 765 1530 2295 3060 3825 4590 5355 6120
Power wiring mm2×No. 10×5-coreConnection
wiring Signal wiring mm2×No. 0.75×3-core
Control type Wired controller
Safety protection device
High/low-pressure switch, anti-frost protection, water-flow switch, over-load protection,
and power phases sequence protection.
Power supply V/Ph/Hz 380/3/50Electric
heater
(optional)
Power input W 15 30 45 60 75 90 105 120
Noise level dB(A) 60
Operation water temp ℃Cooling：5～17 Heating：45～50
Ambienttemp ℃Cooling：17～48 Heating：-10～21
Note: Please refer to the water flow volume in the above table strictly to design and install.

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For digital scroll heat pump 30kW module:
MGA-D( )W/SN1
Model 30 60 90 120 150 180 210 240
Combination (Main module + auxiliary module) Pieces 1+0 1+1 1+2 1+3 1+4 1+5 1+6 1+7
Cooling Capacity kW 30 60 90 120 150 180 210 240
Heating Capacity kW 32 64 96 128 160 192 224 256
Power supply V/Ph/Hz 380-415/3/50
Type Scroll (1 digital scroll plus 1 fixed speed)
Compressor
Quantities Pieces 2 4 6 8 10 12 14 16
Cooling kW 10 20 30 40 50 60 70 80
Power input
Heating kW 9.8 19.5 29.3 39 48.8 58.5 68.3 78
Type R410A R410A R410A R410A R410A R410A R410A R410A
Refrigerant
Weight kg 7 7×2 7×3 7×4 7×5 7×6 7×7 7×8
Air side heat-exchanger type Copper-fin-coil
Quantities of fan motor Pieces 1 2 3 4 5 6 7 8
Air flow volume ×103m3/h 12 24 36 48 60 72 84 96
Condenser
(Air side)
Fan motor input kW 0.7 0.7×2 0.7×3 0.7×4 0.7×5 0.7×6 0.7×7 0.7×8
Water side heat-exchanger type Plate type
Water resistance loss kPa 18 18 18 18 18 18 18 18
Water inlet/outlet pipeline diameter mm 133 133 133 133 133 133 133 133
Water flow volume m3/h 5.2 10.3 15.5 20.6 25.8 30.9 36 41.2
Max. Pressure MPa 1 1 1 1 1 1 1 1
Evaporator
(Water side)
Water pipe connection type Soft connection
L mm 1514 1514 1514 1514 1514 1514 1514 1514
W mm 850 2300 3750 5200 6650 8100 9550 11000
Dimension
H mm 1820 1820 1820 1820 1820 1820 1820 1820
Packing
size
L×W×H mm 1620×1034×2041
Net weight kg 440 880 1320 1760 2200 2640 3080 3520
Weight
Operating weight kg 470 940 1410 1880 2350 2820 3290 3760
Power wiring mm2×No. 10×5-coreConnection
wiring Signal wiring mm2×No. 0.75×3-core
Control type Wired controller
Safety protection device
High/low-pressure switch, anti-frost protection, water-flow switch, over-load
protection, and power phases sequence protection.
Power supply V/Ph/Hz 380/3/50Electric
heater
(optional)
Power input W 7.5 15 22.5 30 37.5 45 52.5 60
Noise level dB(A) 58
Operation water temp ℃Cooling：5～17 Heating：45～50
Ambienttemp ℃Cooling：17～48 Heating：-10～21
Note: Please refer to the water flow volume in the above table strictly to design and install.

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For digital scroll heat pump 30kW module:
MGA-F( )W/SN1
Model 270 300 330 360 390 420 450 480
Combination (Main module + auxiliary module) Pieces 1+8 1+9 1+10 1+11 1+12 1+13 1+14 1+15
Cooling Capacity kW 270 300 330 360 390 420 450 480
Heating Capacity kW 288 320 352 384 416 448 480 512
Power supply V/Ph/Hz 380-415/3/50
Type Scroll (1 digital scroll plus 1 fixed speed)
Compressor
Quantities Pieces 18 20 22 24 26 28 30 32
Cooling kW 90 100 110 120 130 140 150 160
Power input
Heating kW 87.8 97.5 107.3 117 126.8 136.5 146.3 156
Type R410A R410A R410A R410A R410A R410A R410A R410A
Refrigerant
Weight kg 7×9 7×10 7×11 7×12 7×13 7×14 7×15 7×16
Air side heat-exchanger type Copper-fin-coil
Quantities of fan motor Pieces 9 10 11 12 13 14 15 16
Air flow volume ×103m3/h 108 120 132 144 156 168 180 192
Condenser
(Air side)
Fan motor input kW 0.7×9 0.7×10 0.7×11 0.7×12 0.7×13 0.7×14 0.7×15 0.7×16
Water side heat-exchanger type Plate type
Water resistance loss kPa 18 18 18 18 18 18 18 18
Water inlet/outlet pipeline diameter mm 133 133 133 133 133 133 133 133
Water flow volume m3/h 46.4 51.5 56.7 61.8 67 72.1 77.3 82.4
Max. Pressure MPa 1 1 1 1 1 1 1 1
Evaporator
(Water side)
Water pipe connection type Soft connection
L mm 1514 1514 1514 1514 1514 1514 1514 1514
W mm 12450 13900 15350 16800 18250 19700 21150 22600
Dimension
H mm 1820 1820 1820 1820 1820 1820 1820 1820
Packing size L×W×H mm 1620×1034×2041
Net weight kg 3960 4400 4840 5280 5720 6160 6600 7040
Weight
Operating weight kg 4230 4700 5170 5640 6110 6580 7050 7520
Power wiring mm2×No. 10×5-coreConnection
wiring Signal wiring mm2×No. 0.75×3-core
Control type Wired controller
Safety protection device
High/low-pressure switch, anti-frost protection, water-flow switch, over-load
protection, and power phases sequence protection.
Power supply V/Ph/Hz 380/3/50Electric
heater
(optional)
Power input W 67.5 75 82.5 90 97.5 105 112.5 120
Noise level dB(A) 58
Operation water temp ℃Cooling：5～17 Heating：45～50
Ambienttemp ℃Cooling：17～48 Heating：-10～21
Note: Please refer to the water flow volume in the above table strictly to design and install.