Midea MDV-D22Q1/N1-D User manual

TECHNICAL MANUAL
ONE WAY CASSETTE
MDV-D22Q1/N1-D
MDV-D36Q1/N1-D
MDV-D71Q1/N1-D

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One-way Cassette
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One-way Cassette
1. Features............................................................................................. 4
2. Specifications ................................................................................... 5
3. Dimensions ....................................................................................... 8
4. Service Spaces .................................................................................10
5. Piping Diagrams ...............................................................................11
6. Wiring Diagrams............................................................................. 12
7. Capacity Tables............................................................................... 15
8. Electrical Characteristics............................................................... 21
9. Sound Levels .................................................................................. 22
10. Accessories................................................................................... 25
11. Troubleshooting.............................................................................. 26

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1. Features
1.1 New panel design
The new panel is equipped with digital display function, which can show temperature, warning message and
check running parameters.
1.2 Compact design
For capacity 1.8kW to 3.6kW, needs only 153mm space above the ceiling. And 189mm for 4.5~7.1kW
models.
153mm Ultra thin
1.3 Parts inside installation
The throttling components and water pump are internally installed which means lower cost, no extra
accessories or installation time.
1.4 Large airflow and low noise
Large airflow, for high ceiling application (installation height can reach up to 3.2m for 1.8~3.6kW models and
4.0m for 4.5~7.1kW models) guarantees comfort in large space.
1.5 Improved air quality
Two folding type air filters and two standard formaldehyde absorption nets improve the air quality greatly.
The design of a long air outlet and a wide guide fan blade, which enlarges the range of flow transportation.
1.6 Auto swing
Auto swing mechanism guarantees even airflow distribution and a better room temperature balance.
Heating
Single-flow design suits
corner installation
Cooling
1.7 Built-in water pump with 750mm pump head
750mm
1.8 Prevent condensation in air outlet by the patent of a new structure design
By the adoption of this structure, the guide wing will always be wrapped up by dry cold air, cutting off the
contact route of moist hot air and the cold guide wing. As a result, the water vapor in most hot air gets no
change to condense in the surface of guide wing.
1.9 Auto restart
When the indoor unit is powered off, it will auto restart when powered on again after 3 minutes and operate
in the previous state.

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2. Specifications
Model
MDV-D22Q1/N1-D
Power supply
1 phase, 220-240V, 50Hz
Cooling
Capacity
kW
1.8
2.2
Input
W
41
41
Rated current
A
0.24
0.24
Heating
Capacity
kW
2.2
2.6
Input
W
41
41
Rated current
A
0.24
0.24
Indoor fan motor
Model
RPS12N
Type
AC
Input(H/M/L)
W
29.5/26.7/25.0
29.5/26.7/25.0
Capacitor
μF
0.8
Speed (H/M/L)
r/min
1180/955/710
Indoor coil
Number of rows
2
Tube pitch(a) × row pitch(b)
mm
21 × 13.37
Fin spacing
mm
1.5
Fin type
Hydrophilic aluminum
Tube outside dia. and type
mm
Ф7 Inner groove tube
Coil length × height × width
mm
760 × 252.4 × 26.74
Number of circuits
2
Indoor air flow (H/M/L)
m3/h
523/404/275
Sound pressure level (H/M/L)
dB(A)
38/34/30
Indoor unit
Dimension (W × H × D)
mm
1054 × 153 × 425
Packing (W × H × D)
mm
1155 × 245 × 490
Net/Gross weight
kg
12.5/16
Panel
Dimension (W × H × D)
mm
1180 × 25 × 465
Packing (W × H × D)
mm
1232 × 107 × 517
Net/Gross weight
kg
3.5/5.2
Refrigerant type
R410A
Throttle
Type
Electronic expansion valve
Design pressure(H/L)
MPa
4.4/2.6
Pipe connections
Liquid pipe
mm
Ф6.35
Gas pipe
mm
Ф12.7
Drain pipe
mm
OD Ф25
Standard Controller
Wireless remote controller
Notes: 1. Nominal cooling capacities are based on the following conditions: return air temperature: 27 ° CDB,19 ° CWB,
outdoor temperature:35 ° CDB, equivalent refrigerant piping: 7.5m(horizontal).
2. Nominal heating capacities are based on the following conditions: return air temperature: 20 ° CDB,
outdoor temperature: 7 ° CDB,6 ° CWB, equivalent refrigerant piping: 7.5m(horizontal)

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Specifications
Model
MDV-D36Q1/N1-D
Power supply
1 phase, 220-240V, 50Hz
Cooling
Capacity
kW
3.6
Input
W
41
Rated current
A
0.25
Heating
Capacity
kW
4
Input
W
41
Rated current
A
0.25
Indoor fan motor
Model
RPS12N
Type
AC
Input(H/M/L)
W
31.0/27.2/25.3
Capacitor
μF
1
Speed (H/M/L)
r/min
1270/1050/790
Indoor coil
Number of rows
2
Tube pitch(a) × row pitch(b)
mm
21 × 13.37
Fin spacing
mm
1.5
Fin type
Hydrophilic aluminum
Tube outside dia. and type
mm
Ф7 Inner groove tube
Coil length × height × width
mm
760 × 252.4 × 26.74
Number of circuits
3
Indoor air flow (H/M/L)
m3/h
573/456/315
Sound pressure level (H/M/L)
dB(A)
40/38/34
Indoor unit
Dimension (W × H × D)
mm
1054 × 153 × 425
Packing (W × H × D)
mm
1155 × 245 × 490
Net/Gross weight
kg
13/16.5
Panel
Dimension (W × H × D)
mm
1180 × 25 × 465
Packing (W × H × D)
mm
1232 × 107 × 517
Net/Gross weight
kg
3.5/5.2
Refrigerant type
R410A
Throttle
Type
Electronic expansion valve
Design pressure(H/L)
MPa
4.4/2.6
Pipe connections
Liquid pipe
mm
Ф6.35
Gas pipe
mm
Ф12.7
Drain pipe
mm
OD Ф25
Standard Controller
Wireless remote controller
Notes: 1. Nominal cooling capacities are based on the following conditions: return air temperature: 27 ° CDB,19 ° CWB,
outdoor temperature:35 ° CDB, equivalent refrigerant piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions: return air temperature: 20 ° CDB,
outdoor temperature: 7 ° CDB,6 ° CWB, equivalent refrigerant piping: 7.5m(horizontal)

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Specifications
Model MDV-D71Q1/N1-D
Power supply
1 phase, 220-240V, 50Hz
Capacity
kW
7.1
Cooling
Input
W
60
Rated current
A
0.36
Capacity
kW
8
Heating
Input
W
55
Rated current
A
0.36
Model YDK43-4
Type
AC
Indoor fan motor
Input(H/M/L)
W
56.2/40.2/28.7
Capacitor
μF
3
Speed (H/M/L)
r/min
1150/1020/850
Number of rows
2
Tube pitch(a) × row pitch(b)
mm
21 × 13.37
Fin spacing
mm
1.5
Indoor coil
Fin type
Hydrophilic aluminum
Tube outside dia. and type
mm
Ф7 Inner groove tube
Coil length × height × width
mm
955 × 336 × 26.74
Number of circuits
5
Indoor air flow (H/M/L)
m3/h
933/749/592
Sound pressure level (H/M/L)
dB(A)
44/41/37
Dimension (W × H × D)
mm
1275 × 189 × 450
Indoor unit
Packing (W × H × D)
mm
1370 × 295 × 505
Net/Gross weight
kg
19.5/23.8
Dimension (W × H × D)
mm
1350 × 25 × 505
Panel
Packing (W × H × D)
mm
1410 × 95 × 560
Net/Gross weight
kg
4/5.4
Refrigerant type
R410A
Throttle
Type
Electronic expansion valve
Design pressure(H/L)
MPa
4.4/2.6
Liquid pipe
mm
Ф9.53
Pipe connections
Gas pipe
mm
Ф15.9
Drain pipe
mm
ODФ25
Standard Controller
Wireless remote controller
Notes: 1. Nominal cooling capacities are based on the following conditions: return air temperature: 27
° CDB,19 ° CWB,
outdoor temperature:35 ° CDB, equivalent ref. Piping: 7.5m(horizontal)
2. Nominal heating capacities are based on the following conditions: return air temperature: 20 ° CDB,outdoor
temperature: 7 ° CDB,6 ° CWB,equivalent ref. Piping: 7.5m(horizontal)

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428
20
17
290
465
153
25
74
202
65
143
290
50 50
208
3. Dimensions
MDV-D22Q1/N1-D MDV-D36Q1/N1-D
60 1060 60
1180
890 119
51
890
78
43
1020

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452
25
189
505
300
Ceiling cutting size:A
Screw fixing size:B
228
42
69
60
70
300
33 56
MDV-D71Q1/N1-D
119
170
75 30 84
1350
1054
1061
51
121
1235
1235
Please use the installation paper plate to make sure the position of the installation screws.
4×Φ10
Screw fixing size:D
Ceiling cutting size:C
18-36
45-71
Unit ： mm
A
430
470
B
290
300
C
1100
1290
D
1015
1235

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C
≤D
≥C
The air outlet can not has any barriers such as pendant lamp, folding screen etc.
4. Service Spaces
Please avoid installing in the following places:
Aplace with flammable gas or material.
Asaline place such as a seashore vicinity.
Aplace with sulphur gas.
Aplace with oil gas, such as kitchen.
Aplace with high-humidity air.
An unbearable place.
Aplace where high-frequencywaves are generated.
The appliance shall not be installed in the laundry.
Please comply with the related national electric standard to make electric insulation for construction and metal
parts of air-conditioner.
Please choose the place where the ventilation is good.
Ceiling space requires ≥Cm.
The installation height of the unit can not be higher than D mm, or it will affect the operation effect.
Unit：mm Unit：mm
≥1 0 0 A ≥1 0
0
≥B
E ≥1 0 0
Air return port
Fan angle range
18-36 45-71
A 1180
B 1380
C 153
D 3200
E 465
1350
1550
189
4000
505