Midea MGA-D10/N1 User manual

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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Content
1. Model Names of Outdoor Units ......................................2
2. External Appearance .......................................................2
3. Nomenclature...................................................................3
4. Features............................................................................4
5. Descriptions of Standard Unit ........................................6
6. Specifications ..................................................................8
7. Dimensions ....................................................................12
8. Service Space.................................................................13
9. Piping Diagram ..............................................................14
10. Wiring Diagrams ..........................................................15
11. Electric Characteristics...............................................17
12. Capacity Tables............................................................18
13. Operation Limits ..........................................................26
14. Hydraulic Performance................................................28
15. Sound Levels ...............................................................29
16. Exploded Views............................................................30
17. Troubleshooting...........................................................38
18. Installation....................................................................51
19. Maintenance.................................................................60
20. Controller......................................................................62
※The specifications, designs, and information in this book are subject to change without notice for
product improvement.

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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1. Model Names of Outdoor Units
Model
Refrigerant
Capacity
(kW)
Heat
exchanger
Compressor
type
A/C mode
Water pump box
Power Supply
(V-Ph-Hz)
MGA-D10/N1
R410A
10.5
Plate type
Digital scroll
Heat pump
CE-SBX/N1-01
220-240, 1, 50
MGA-D12/N1
R410A
12
Plate type
Digital scroll
Heat pump
CE-SBX/N1-01A
220-240, 1, 50
MGA-D14/SN1
R410A
14
Plate type
Digital scroll
Heat pump
CE-SBX/SN1-01
380-415, 3, 50
MGA-D16/SN1
R410A
15
Plate type
Digital scroll
Heat pump
CE-SBX/SN1-01A
380-415, 3, 50
2. External Appearance
2.1 Outdoor unit lineups
MGA-D10/N1
MGA-D12/N1, MGA-D14/SN1, MGA-D16/SN1
2.2 Water pump box

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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3. Nomenclature
M G A- D 14 / S N1
Refrigerant
N1: R410A
Power supply
S:380-415V,50Hz,3Ph
-:220-240V,50Hz,1Ph
Capacity(14kW)
Compressor type
D: Digital scroll compressor
F: Fixed scroll compressor
Product series code
A: Split chiller
C: Unitary chiller
Light commercial chiller system
Midea

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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4. Features
4.1 R410A environment friendly refrigerant, no harm to ozone layer.
No harm to ozone leyer Greenhouse effect is small
4.2 Easy for installation
Air-cooled system, no need cooling water tower,
packaged design, easy for installation.
4.3 Energy saving and high reliability
a. By adopting Copeland digital scroll compressor, the capacity can be stepless adjusted and the chiller
can bring you more comfortable living conditions with less energy consumption. The system has no
EMC problem.
b. By adopting high efficiency plate heat exchanger, the energy consumption can be reduced.

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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c. Metallic protective cabinet with rustproof plyester paint.
d. Built-in with voltage protection, current protection, anti-freezing protection, differential water flow
protection，compressor，water pump and fan motor overload protection and etc., effectively guarantee
the system to work safety.
4.4 Convenient and simple installation
With international popular split design, the pump box can be installed inside the matched room and its
outdoor unit is compact and light.
Expansion tank
Plate heat exchanger
Water pump
Water flow switch
4.5 Wired controller KJRM-120D/BMK-E(Standard)
The setting and operation order can be send to the main board and the running condition can be
displayed by the wired controller. It can connect max. 16PCBs. It is available for all Midea air cooled scroll
chillers. The MODBUS gateway can be customized, it is available by communication port X,Y and E in wired
controller.
Item
Description
Item
Description
1
Operation icon
9
Water temperature
2
Mode area
10
On/Off key
3
Setting temperature
11
Right, left right key
4
Timing On/Off
12
OK key
5
Function icon
13
Setting key
6
On-line unit Qty. indication
14
Add, reduce key
7
Reserved
15
Cancel key
8
Clock
16
Reserved key
Compressor
current protection
Phase protection
signal output

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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5. Descriptions of Standard Unit
The air cooled reverse-cycle chillers with axial-flow fans operate with refrigerant fluid and are suitable for
outdoor installation. They are factory tested and site installation is limited to water and electrical
connections.
Structure
Panels and base are made from galvanized steel plate painted with epoxy powder to ensure total resistance
to atmospheric agents. Condensate collection pan as standard.
Compressor
Midea mini split chillers are equipped with Copeland brand high efficiency, reliable and silence digital scroll
compressor, the capacity can be stepless adjusted , the chiller can bring you more comfortable living
condition with less energy consumption. The system has no EMC problem.
Air cooled condenser
Coils
The coils are made from high performance and seamless copper tuber and high surface area aluminum fins
to ensure optimum heat exchange capability. Condenser coil protection grill is standard.
Low noise fan and fan motor
To achieve high efficiency heat exchange, the units are equipped with the high performance axial-flow fans.
The fan is directly driven by weather proof motor to ensure reliable operation, the fan motor is six–pole
electric motor with built-in thermal cut-out.
Evaporator(in the water pump box)
The heat exchanger is made of AISI 316 stainless steel to ensure high heat exchange efficiency, complete
with electric heater and differential pressure switch. The complete heat exchanger is insulated with thermal
insulation closed cell rubber foam to give optimum thermal insulation.
Water pump box
The mini split chillers water pump box are fully integrated and equipped with key hydraulic components such
as expansion tank, water flow switch, plate type heat-exchanger, water circulating pump.
Refrigerant circuit
The refrigerant circuit is factory brazed and evacuated before accurately charged with R410A to ensure
optimum operating requirement. To ensure flawless continuous operation, each refrigerant circuit is
equipped with a carefully sized capillary tube.
Power and control electrical panel
Power and control electrical panel constructed in accordance with IEC 204-1/EN60335-2-40,complete with
compressor contactor, control via “HSW7”control panel.
Emergency stop pushbuttons:
In case system crisis is occur (e.g: Compressor out of control ), press the emergency stop pushbuttons at
once, and turn it clockwise, until crisis is removed.
Optional accessories:
- Removable metal mesh filter.
- Remote keyboard kit.
The above accessories are optional. Consult the relative documentation for assembly instructions and
technical data.

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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Outdoor unit
MGA-D10/N1
MGA-D12/N1, MGA-D14/SN1, MGA-D16/SN1
Water pump box

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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6. Specifications
Model
MGA-D10/N1
MGA-D12/N1
Code
220090400050
220090400030
Power supply
V-Ph-Hz
220-240, 1, 50
220-240, 1, 50
Cooling*(1)
Capacity
kW
10.5
12
Input
W
3912
3978
Heating*(2)
Capacity
kW
13.0
14
Input
W
4216
4260
Max. input consumption
W
6150
6200
Max. input current
A
29.2
29.4
Starting current
A
124
130
Compressor
Model
ZPD61KCE-PFZ-532
ZPD61KCE-PFZ-532
Type
Digital Scroll
Digital Scroll
Brand
Copeland
Copeland
Rated load current (RLA)
A
31.4
31.4
Locked rotor Amp (LRA)
A
147
147
Thermal protector
Inner
Inner
Capacitor
uF
80uF/440V
80uF/440V
Refrigerant oil
ml
1892
1892
Outdoor fan motor
Model
YDK250-6E
YDK100-6A(×2)
Type
AC motor
AC motor
Brand
Welling
Welling
Input (Hi/Lo)
W
326/200
185/120(×2)
Capacitor
uF
10uF±5% 450V
5uF/450V
Speed (Hi/Lo)
r/min
740/530
860/610
Outdoor condenser coil
Number of rows
2
2
Tube pitch(a)x row pitch(b)
mm
25.4×22
25.4×22
Fin spacing
mm
1.7
1.5
Fin type
Hydrophilic aluminum
Hydrophilic aluminum
Tube outside diameter and type
mm
φ9.53
φ9.53
Inner grooved tube
Inner grooved tube
Coil length x height x width
mm
880×915×44
887×1220×44
Number of circuits
4
6
Water pump
Type
LDPB2-30(Z)
LDPB2-30(Z)
Input
W
400
400
Pumping head
m
22
20
Rated water flow
m3/h
1.80
2.06
Max. air flow
m3/h
4500
5800
Throttle
Capillary
Capillary
Noise level (sound
pressure)*(4)
Outdoor unit
dB(A)
57
60
Water pump box
dB(A)
38.4
38.9
Minimum water flow
m3/h
0.9
1.03
The max. and min. water inlet pressure*(3)
bar
5.0/0.5
5.0/0.5
The volume of expansion tank
ml
3000
3000
Outdoor unit
Dimension (W×H×D)
mm
990×966×340
940×1250×340
Packing (W×H×D)
mm
1120×1100×435
1077×1380×438

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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Net/ Gross weight
kg
109/115
122/128
Water pump box
Model
CE-SBX/N1-01
CE-SBX/N1-01A
Code
220095700030
220095700010
Net dimension (W×H×D)
mm
905×370×366
905×370×366
Packing dimension (W×H×D)
mm
1057×439×436
1057×439×436
Net/ Gross weight
kg
54/59
54/59
Refrigerant
Type
R410A
R410A
Charged volume
kg
2.7
3.6
Refrigerant pipe diameter
Liquid side
mm
Φ9.53
Φ9.53
Gas side
mm
Φ19
Φ19
Pipe diameter
Water inlet/outlet
mm
DN32
DN32
Controller
Wired controller KJRM-120D/BMK-E
Ambient temperature
℃
Cooling: 10℃~43℃
Cooling: 10℃~43℃
Heating: -15℃~24℃
Heating: -15℃~24℃
Note:
The specification is based on the following conditions:
1. Cooling mode：ambient temperature 35℃，water inlet/outlet 12/7℃；
2. Heating mode：ambient temperature 7℃，water inlet/outlet 40/45℃；
3. The maximum and minimum operating pressure values refer to the activation of the pressure switches
4. It is tested 1m away in front of the unit in a semi-anechoic room(sound pressure).

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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Model
MGA-D14/SN1
MGA-D16/SN1
Code
220090400020
220090400040
Power supply
V-Ph-Hz
380-415, 3, 50
380-415, 3, 50
Cooling*(1)
Capacity
kW
14
15
Input
W
4453
4904
Heating*(2)
Capacity
kW
16
17
Input
W
4828
4943
Max. input consumption
W
6400
6600
Max. input current
A
12.4
12.5
Starting current
A
60
64
Compressor
Model
ZPD72KCE-TFD-532
ZPD72KCE-TFD-532
Type
Digital Scroll
Digital Scroll
Brand
Copeland
Copeland
Rated load current (RLA)
A
9.8
9.8
Locked rotor Amp (LRA)
A
82.4
82.4
Thermal protector
Inner
Inner
Capacitor
uF
/
/
Refrigerant oil
ml
1893
1893
Outdoor fan motor
Model
YDK100-6A(×2)
YDK100-6A(×2)
Type
AC motor
AC motor
Brand
Welling
Welling
Input (Hi/Lo)
W
185/120(×2)
185/120(×2)
Capacitor
uF
5uF/450V
5uF/450V
Speed (Hi/Lo)
r/min
860/610
860/610
Outdoor condenser coil
Number of rows
2
3
Tube pitch(a)x row pitch(b)
mm
25.4×22
25.4×22
Fin spacing
mm
1.5
1.5
Fin type
Hydrophilic aluminum
Hydrophilic aluminum
Tube outside diameter and type
mm
Φ9.53
Φ9.53
Inner grooved tube
Inner grooved tube
Coil length x height x width
mm
887×1220×66
887×1220×66
Number of circuits
12
8
Water pump
Type
LDPB2-30(Z)
LDPB2-30(Z)
Input
W
450
450
Pumping head
m
18
17
Rated water flow
m3/h
2.4
2.58
Max. air flow
m3/h
5600
5600
Throttle
Capillary
Capillary
Noise level (sound
pressure)*(4)
Outdoor unit
dB(A)
60
60
Water pump box
dB(A)
41.2
37.8
Minimum water flow
m3/h
1.2
1.29
The max. and min. water inlet pressure*(3)
bar
5.0/0.5
5.0/0.5
The volume of expansion tank
ml
3000
3000
Outdoor unit
Dimension (W×H×D)
mm
940×1250×340
940×1250×340
Packing (W×H×D)
mm
1077×1380×438
1077×1380×438
Net/ Gross weight
kg
123/130
126/133
Water pump box
Model
CE-SBX/SN1-01
CE-SBX/SN1-01A
Code
220095700000
220095700020
Net dimension (W×H×D)
mm
905×370×366
905×370×366
Packing dimension (W×H×D)
mm
1057×439×436
1057×439×436

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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Net/ Gross weight
kg
54/59
55/56
Refrigerant
Type
R410A
R410A
Charged volume
kg
4.1
4.4
Refrigerant pipe diameter
Liquid side
mm
Φ9.53
Φ9.53
Gas side
mm
Φ19
Φ19
Pipe diameter
Water inlet/outlet
mm
DN32
DN32
Controller
Wired controller KJRM-120D/BMK-E
Ambient temperature
℃
Cooling: 10℃~43℃
Cooling: 10℃~43℃
Heating: -15℃~24℃
Heating: -15℃~24℃
Note:
The specification is based on the following conditions:
1. Cooling mode：ambient temperature 35℃，water inlet/outlet 12/7℃；
2. Heating mode：ambient temperature 7℃，water inlet/outlet 40/45℃；
3. The maximum and minimum operating pressure values refer to the activation of the pressure switches
4. It is tested 1m away in front of the unit in a semi-anechoic room(sound pressure).

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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7. Dimensions
7.1 Outdoor unit
Unit: mm
Dimensions
Model
A
B
C
D
E
MGA-D10/N1
990
966
340
624
366
MGA-D12/N1
940
1250
340
600
376
MGA-D14/SN1
940
1250
340
600
376
MGA-D16/SN1
940
1250
340
600
376
7.2 Water pump box

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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8. Service Space

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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9. Piping Diagram
Remark:
No.
Name
No.
Name
No.
Name
1
Compressor
6
Capillary
11
Liquid receiver
2
High pressure switch
7
Liquid receiver
12
Low pressure switch
3
4 -way valve
8
Plate heat exchanger
13
Crankcase heater
4
Condenser
9
PWM valve
5
Filter
10
Water temperature sensor

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10. Wiring Diagrams
10.1 MGA-D10/N1

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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10.2 MGA-D12/N1
10.3 MGA-D14/SN1 MGA-D16/SN1

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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11. Electric Characteristics
Model
Power supply
(V-Ph-Hz)
Rated values(1)
Fuses
Compressors
Fan/fans
Pump
Total
Max.
values(2)
Glass
5×20mm
250V
F.L.I.
F.L.A.
L.R.A.
F.L.I.
F.L.A.
F.L.I.
F.L.A.
F.L.I.
F.L.A.
F.L.I.
F.L.A.
Fuse 1
kW
A
A
kW
A
kW
(A)
(kW)
(A)
(kW)
(A)
MGA-D10/N1
220-240-1-50
5.0
23.2
147
0.3
1.4
0.5
2.2
5.8
26.8
7.54
34.8
10A
MGA-D12/N1
220-240-1-50
5.0
23.2
147
0.37
1.6
0.5
2.2
5.8
27
7.63
35.1
10A
MGA-D14/SN1
380-415-3-50
5.75
9.8
82.4
0.37
1.6
0.5
2.2
6.62
13.6
8.6
17.7
10A
MGA-D16/SN1
380-415-3-50
5.75
9.8
82.4
0.37
1.6
0.5
2.2
6.62
13.6
8.6
17.7
10A
Remark:
F.L.I. :Full load input power.
F.L.A. : Full load ampere.
L.R.A.: Locked rotary ampere.
(1) Outside air temperature 35℃-Water temperature at evaporator 12/7℃.
(2) Values refer to the lower rated voltage(50Hz). These values are used to judge the protection switch size and the thickness
of the power supply cable.

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
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12. Capacity Tables
12.1 Cooling capacity
Model
MGA-D10/N1
Ta. (°C)
Tw (°C)
5
6
7
8
9
10
25
Pf (kW)
10.9
11.2
11.5
11.8
12.1
12.4
Pa (kW)
3.3
3.3
3.4
3.4
3.4
3.5
Pat (kW)
4.1
4.1
4.2
4.2
4.2
4.3
Qev (m3/h)
1.9
1.9
2.0
2.0
2.1
2.2
△Pev (kPa)
47.3
47.6
50.0
50.3
54.0
57.0
30
Pf (kW)
10.4
10.8
11.1
11.5
11.8
12.1
Pa (kW)
2.9
2.9
3.0
3.1
3.1
3.1
Pat (kW)
3.4
3.4
3.5
3.6
3.6
3.6
Qev (m3/h)
1.8
1.8
1.9
2.0
2.0
2.0
△Pev (kPa)
44.7
45.6
47.7
49.8
50.4
50.9
35
Pf (kW)
9.9
10.2
10.5
10.7
11.0
11.3
Pa (kW)
3.3
3.3
3.4
3.4
3.5
3.5
Pat (kW)
3.8
3.8
3.9
3.9
4.0
4.0
Qev (m3/h)
1.7
1.7
1.8
1.9
1.9
2.0
△Pev (kPa)
40.5
41.3
45.0
48.0
48.6
51.0
40
Pf (kW)
9.4
9.7
10.0
10.3
10.6
11.0
Pa (kW)
3.6
3.6
3.7
3.7
3.8
3.8
Pat (kW)
4.1
4.1
4.2
4.2
4.3
4.3
Qev (m3/h)
1.6
1.6
1.7
1.7
1.8
1.8
△Pev (kPa)
36.0
36.6
40.8
41.4
45.5
45.8
43
Pf (kW)
9.0
9.3
9.5
9.8
10.0
10.3
Pa (kW)
3.8
3.8
3.9
3.9
4.0
4.0
Pat (kW)
4.3
4.3
4.4
4.4
4.5
4.5
Qev (m3/h)
1.5
1.6
1.6
1.7
1.7
1.8
△Pev (kPa)
31.5
35.7
36.6
40.5
41.3
46.5
Remark:
Ta: outside air temperature (°C)
Tw : evaporator water outlet temperature (°C)
Pf: cooling capacity (kW)
Pa: compressor power input (kW)
Pat: total power input (kW)
Qev: evaporator water flow (m3/h)
△Pev: evaporator pressure drop (kPa)

MCAC-ATSM-2014-01 R410A Mini Split Chiller 50Hz
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Model
MGA-D12/N1
Ta. (°C)
Tw (°C)
5
6
7
8
9
10
25
Pf (kW)
12.4
12.7
13.0
13.3
13.6
13.9
Pa (kW)
3.5
3.5
3.5
3.6
3.6
3.6
Pat (kW)
4.1
4.1
4.1
4.2
4.2
4.2
Qev (m3/h)
2.2
2.2
2.3
2.3
2.3
2.4
△Pev (kPa)
46.6
47.8
49.6
51.8
54.6
60.0
30
Pf (kW)
11.9
12.2
12.5
12.8
13.1
13.4
Pa (kW)
3.8
3.8
3.8
3.9
3.9
3.9
Pat (kW)
4.4
4.4
4.4
4.5
4.5
4.5
Qev (m3/h)
2.0
2.1
2.1
2.2
2.2
2.3
△Pev (kPa)
37.0
37.1
40.6
43.2
46.1
48.0
35
Pf (kW)
11.4
11.7
12.0
12.3
12.6
12.9
Pa (kW)
4.2
4.2
4.2
4.3
4.3
4.3
Pat (kW)
4.8
4.8
4.8
4.9
4.9
4.9
Qev (m3/h)
2.0
2.0
2.1
2.1
2.2
2.2
△Pev (kPa)
33.8
37.1
40.6
43.2
46.1
48.0
40
Pf (kW)
10.9
11.2
11.5
11.8
12.1
12.4
Pa (kW)
4.5
4.5
4.5
4.6
4.6
4.6
Pat (kW)
5.1
5.1
5.1
5.2
5.2
5.2
Qev (m3/h)
1.9
2.0
2.0
2.0
2.1
2.1
△Pev (kPa)
32.3
35.0
36.3
38.4
41.0
45.1
43
Pf (kW)
10.5
10.8
11.1
11.4
11.7
12.0
Pa (kW)
4.7
4.7
4.7
4.8
4.8
4.8
Pat (kW)
5.3
5.3
5.3
5.4
5.4
5.4
Qev (m3/h)
1.8
1.9
1.9
2.0
2.0
2.0
△Pev (kPa)
28.0
30.1
33.8
37.4
38.6
40.5
Remark:
Ta: outside air temperature (°C )
Tw : evaporator water outlet temperature (°C)
Pf: cooling capacity (kW)
Pa: compressor power input (kW)
Pat: total power input (kW)
Qev: evaporator water flow (m3/h)
△Pev: evaporator pressure drop (kPa)

R410A Mini Split Chiller 50Hz MCAC-ATSM-2014-01
20
Model
MGA-D14/SN1
Ta. (°C)
Tw (°C)
5
6
7
8
9
10
25
Pf (kW)
14.8
15.1
15.4
15.7
16.1
16.4
Pa (kW)
3.6
3.6
3.6
3.7
3.7
3.7
Pat (kW)
4.1
4.1
4.1
4.2
4.2
4.2
Qev (m3/h)
2.6
2.6
2.7
2.7
2.8
2.8
△Pev (kPa)
49.3
50.0
51.7
53.0
56.1
57.8
30
Pf (kW)
14.1
14.4
14.7
15.0
15.3
15.6
Pa (kW)
4.1
4.1
4.1
4.2
4.2
4.2
Pat (kW)
4.6
4.6
4.7
4.7
4.7
4.7
Qev (m3/h)
2.4
2.5
2.5
2.6
2.6
2.7
△Pev (kPa)
43.9
47.9
48.3
49.1
50.2
52.7
35
Pf (kW)
13.4
13.7
14.0
14.3
14.6
14.9
Pa (kW)
4.6
4.6
4.6
4.7
4.7
4.7
Pat (kW)
5.1
5.1
5.1
5.2
5.2
5.2
Qev (m3/h)
2.3
2.4
2.4
2.5
2.5
2.5
△Pev (kPa)
40.8
43.5
44.2
46.9
47.8
48.3
40
Pf (kW)
12.5
12.8
13.1
13.4
13.7
14.0
Pa (kW)
5.1
5.1
5.1
5.2
5.2
5.2
Pat (kW)
5.6
5.6
5.6
5.7
5.7
5.7
Qev (m3/h)
2.2
2.2
2.3
2.3
2.4
2.4
△Pev (kPa)
33.3
34.5
36.7
39.8
43.7
44.9
43
Pf (kW)
12.0
12.3
12.6
12.9
13.2
13.5
Pa (kW)
5.5
5.5
5.5
5.6
5.6
5.6
Pat (kW)
6.0
6.0
6.0
6.1
6.1
6.1
Qev (m3/h)
2.1
2.1
2.2
2.2
2.3
2.3
△Pev (kPa)
30.6
32.5
35.2
36.2
39.1
40.5
Remark:
Ta: outside air temperature (°C )
Tw : evaporator water outlet temperature (°C)
Pf: cooling capacity (kW)
Pa: compressor power input (kW)
Pat: total power input (kW)
Qev: evaporator water flow (m3/h)
△Pev: evaporator pressure drop (kPa)