Midea MUE-18HRFNX-QRD0 User manual

FLOOR CEILING
R32 50HZ 3D INVERTER CONTROL
TM_FLOOR CEILING_50R32_3D INVERTER_EU_S_NA_1905
TECHNICAL MANUAL

Table of Contents Page
1. Specifications ................................................................................................ 4
1. Model Reference
2. General Specifications
3. Dimensional Drawings
4. Centre of Gravity
5. Electrical Wiring Diagrams
6 Refrigerant Cycle Diagrams
7. Capacity Tables
8. Capacity Correction Factor for Height Difference
9. Noise Criterion Curves
10. Electrical Characteristics
2. Product Features ........................................................................................... 74
1. Operation Modes and Functions
2. Remote Controller Functions
3. Installation .................................................................................................... 93
1. Installation Overview
2. Location Selection
3. Indoor Unit Installation
4. Outdoor Unit Installation
5. Drainage Pipe Installation
6. Refrigerant Pipe Installation
7. Vacuum Drying and Leakage checking
8. Additional Refrigerant Charge

Table of Contents Page
9. Engineering of Insulation
10. Engineering of Electrical Wiring
11. Test Operation

Contents
1. Model Reference....................................................................................................5
2. General Specifications...........................................................................................6
3. Dimensional Drawings ........................................................................................12
4. Centre of Gravity .................................................................................................15
5. Electrical Wiring Diagrams..................................................................................19
6 Refrigerant Cycle Diagrams ................................................................................33
7. Capacity Tables ....................................................................................................36
8. Capacity Correction Factor for Height Difference .............................................60
9. Noise Criterion Curves.........................................................................................67
10. Electrical Characteristics......................................................................................73
Specifications

Specifications
Page 5 
1. Model Reference
Refer to the following table to determine the specific indoor and outdoor unit model number of your purchased
equipment.
Indoor Unit Model Outdoor Unit Model Capacity (Btu/h) Power Supply
MUE-18HRFNX-QRD0 MOB30U-18HFN8-QRD0 18K
1Φ, 220-240V~, 50Hz
MUE-24HRFNX-QRD0 MOCA30U-24HFN8-QRD0 24K
MUE-30HRFNX-QRD0 MOD30U-30HFN8-QRD0 30K
MUE-36HRFNX-QRD0 MOD30U-36HFN8-QRD0 36K
MUE-42HRFNX-QRD0 MOD30U-42HFN8-QRD0 42K
MUE-36HRFNX-QRD0 MOD30U-36HFN8-RRD0 36K
3Φ, 380-410V~, 50HzMUE-48HRFNX-QRD0 MOE30U-48HFN8-RRD0 48K
MUE-55HRFNX-QRD0 MOE30U-55HFN8-RRD0 55K

Specifications
Page 6 
2. General Specifications
Indoor model MUE-18HRFNX-QRD0 MUE-24HRFNX-QRD0 MUE-36HRFNX-QRD0
Outdoor model MOB30U-18HFN8-QRD0 MOCA30U-24HFN8-QRD0 MOD30U-36HFN8-QRD0
Power supply (Indoor ) V- Ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50
Power Supply (Outdoor)V-Ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50
Max. input consumption W 2200 2950 4700
Max. current A 10.0 13.5 21.5
Indoor fan motor
Model ZKFN-55-8-1 ZKFN-55-8-1 ZKFN-90-8-1
Qty 1 1 2
Insulation class E E E
IP rating IPX4 IPX4 IPX4
Input W 100.0 100.0 96.0
Capacitor uF ///
Speed(Hi/Mi/Lo) r/min 950/850/750 1200/1080/890 1200/1050/850
Indoor coil
Number of rows 3.0 3.0 3
Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37
Fin spacing mm 1.3 1.3 1.3
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia.and type mm Φ7,Inner groove tube Φ7,Inner groove tube Φ7,Inner groove tube
Coil length x height x width mm 795x294x40.11 795x294x40.11 1300x294x40.11
Number of circuits 7 7 8
Indoor air flow (Hi/Mi/Lo) m3/h 902/786/677 1208/1066/853 2160/1844/1431
Indoor sound pressure level dB(A) 45/40/37 49/46/41 50/46/42
Indoor sound power level dB(A) 56 61 61
Indoor unit
Dimension(W*D*H) mm 1068x675x235 1068x675x235 1650x675x235
Packing (W*D*H) mm 1145x755x313 1145x755x313 1725x755x313
Net/Gross weight Kg 26.6/31.8 26.8/31.9 41.5/48
Design pressure MPa 4.2/1.5 4.2/1.5 4.2/1.5
Drainage water pipe diameter mm ODΦ25mm ODΦ25mm ODΦ25mm
Refrigerant piping Liquid side/ Gas side mm(inch) Φ6.35/Φ12.7(1/4"/1/2") Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8")
Controller Remote contorl Remote contorl Remote contorl
Operation temperature °C 17-30 17-30 17-30
Room temperature
Cooling °C 17~32 17~32 17~32
Heating °C 0~30 0~30 0~30
Qty’per 20’ /40’ /40’HQ Indoor unit 102/220/252 102/220/252 72/147/167
Compressor
Model KSM135D23UFZ KTF235D22UMT KTF310D43UMT
Type ROTARY ROTARY ROTARY
Brand GMCC GMCC GMCC
Capacity W 4230 7650 10010
Input W 1080 2065 2765
Rated current(RLA) A 7.1 9.4 5.38
Refrigerant oil/oil charge ml VG74/450 RB74A F/670 VG74/1000
Outdoor fan motor
Model ZKFN-40-8-1L ZKFN-50-8-2 ZKFN-120-8-2
Qty 1 1 1
Insulation class E E E
IP rating IPX4 IPX0 IPX4
Output W 63.0 115.0 150.0
Capacitor uF ///
Speed r/min 810 850 1050

Specifications
Page 7 
Outdoor coil
Number of rows 2.0 2.0 2.0
Tube pitch(a)x row pitch(b) mm 25.4x22 25.4x22 25.4x22
Fin spacing mm 1.4 1.4 1.3
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia.and type mm Φ9.52,Inner groove tube Φ9.52,Inner groove tube Φ9.52,Inner groove tube
Coil length x height x width mm 860x508x44 730x660x44 995x762x44
Number of circuits 4 4 4
Outdoor air flow m3/h 2100 2700 4000
Outdoor sound pressure level dB(A) 55 59 63
Outdoor sound power level dB(A) 63 65 67
Throttle type EXV+Capillary EXV+Capillary EXV+Capillary
Outdoor unit
Dimension(W*D*H) mm 800x333x554 845x363x702 946x410x810
Packing (W*D*H) mm 920x390x615 965x395x765 1090x500x875
Net/Gross weight Kg 35.6/38.5 49.4/52.8 66.8/73.4
Refrigerant type
Type - R32 R32 R32
GWP - 675 675 675
Charged quantity Kg 1.35 1.5 2.4
Design pressure MPa 4.2/1.5 4.2/1.5 4.2/1.5
Refrigerant piping
Liquid side/ Gas side mm(inch) Φ6.35/Φ12.7(1/4"/1/2") Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8")
Max. refrigerant pipe length m 30 50 65
Max. difference in level m 20 25 30
Ambient temperature
Cooling °C -15~50 -15~50 -15~50
Heating °C -15~24 -15~24 -15~24
Qty’per 20’ /40’ /40’HQ Outdoor unit 108/219/292 102/215/216 44/96/144
Notes:
1) Capacities are based on the following conditions:
Cooling(T1): - Indoor Temperature 27°C(80.6°F) DB /19 °C(66.2°F) WB Heating: - Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB
-Outdoor Temperature 35 °C(95°F) DB /24 °C(75.2°F) WB -Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB
-Interconnecting Piping Length 5m - Interconnecting Piping Length 5 m
- Level Difference of Zero. - Level Difference of Zero.
2) Capacities are Net Capacities.
3) Due to our policy of innovation some specifications may be changed without notification.

Specifications
Page 8 
Indoor model MUE-30HRFNX-QRD0 MUE-42HRFNX-QRD0
Outdoor model MOD30U-30HFN8-QRD0 MOD30U-42HFN8-QRD0
Power supply (Indoor ) V- Ph-Hz 220~240-1-50 220~240-1-50
Power Supply (Outdoor)V-Ph-Hz 220~240-1-50 220~240-1-50
Max. input consumption W 3600 4800
Max. current A 16.5 22.5
Indoor fan motor
Model ZKFN-90-8-1 ZKFN-90-8-1
Qty 2 2
Insulation class E E
IP rating IPX4 IPX4
Input W 96.0 96.0
Capacitor uF / /
Speed(Hi/Mi/Lo) r/min 1200/1050/850 1300/1100/850
Indoor coil
Number of rows 3 3
Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37
Fin spacing mm 1.3 1.3
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia.and type mm Φ7,Inner groove tube Φ7,Inner groove tube
Coil length x height x width mm 1300x294x40.11 1300x294x40.11
Number of circuits 8 8
Indoor air flow (Hi/Mi/Lo) m3/h 2160/1844/1431 2329/1930/1417
Indoor sound pressure level dB(A) 50/46/42 54/50/46
Indoor sound power level dB(A) 62 66
Indoor unit
Dimension(W*D*H) mm 1650x675x235 1650x675x235
Packing (W*D*H) mm 1725x755x313 1725x755x313
Net/Gross weight Kg 41.5/48 41.2/47.6
Design pressure MPa 4.2/1.5 4.2/1.5
Drainage water pipe diameter mm ODΦ25mm ODΦ25mm
Refrigerant piping Liquid side/ Gas side mm(inch) Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8")
Controller Remote contorl Remote contorl
Operation temperature °C 17-30 17-30
Room temperature
Cooling °C 17~32 17~32
Heating °C 0~30 0~30
Qty’per 20’ /40’ /40’HQ Indoor unit 72/147/167 72/147/167
Compressor
Model KTM240D57UMT KTF310D43UMT
Type ROTARY ROTARY
Brand GMCC GMCC
Capacity W 7715 10010
Input W 2085 2765
Rated current(RLA) A 9 5.38
Refrigerant oil/oil charge ml VG74/670 VG74/1000
Outdoor fan motor
Model ZKFN-120-8-2 ZKFN-120-8-2
Qty 1 1
Insulation class E E
IP rating IPX4 IPX4
Output W 150.0 150.0
Capacitor uF / /
Speed r/min 1050/900/850 1050/900/850

Specifications
Page 9 
Outdoor coil
Number of rows 1.6 2.6
Tube pitch(a)x row pitch(b) mm 25.4x22 25.4x22
Fin spacing mm 1.5 1.5
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia.and type mm Φ9.52,Inner groove tube Φ9.52,Inner groove tube
Coil length x height x width mm 1005x762x22+580x762x22 995x762x22+960x762x22+580x762x22
Number of circuits 4 6
Outdoor air flow m3/h 3800 3600
Outdoor sound pressure level dB(A) 58.5 65
Outdoor sound power level dB(A) 67 72
Throttle type EXV+Capillary EXV+Capillary
Outdoor unit
Dimension(W*D*H) mm 946x410x810 946x410x810
Packing (W*D*H) mm 1090x500x885 1090x500x885
Net/Gross weight Kg 56.9/61.8 73.9/78.9
Refrigerant type
Type - R32 R32
GWP - 675 675
Charged quantity Kg 2.0 2.8
Design pressure MPa 4.3/1.7 4.3/1.7
Refrigerant piping
Liquid side/ Gas side mm(inch) Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8")
Max. refrigerant pipe length m 50 65
Max. difference in level m 25 30
Ambient temperature
Cooling °C -15~50 -15~50
Heating °C -15~24 -15~24
Qty’per 20’ /40’ /40’HQ Outdoor unit 44/96/138 44/96/138
Notes:
1) Capacities are based on the following conditions:
Cooling(T1): - Indoor Temperature 27°C(80.6°F) DB /19 °C(66.2°F) WB Heating: - Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB
-Outdoor Temperature 35 °C(95°F) DB /24 °C(75.2°F) WB -Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB
-Interconnecting Piping Length 5m - Interconnecting Piping Length 5 m
- Level Difference of Zero. - Level Difference of Zero.
2) Capacities are Net Capacities.
3) Due to our policy of innovation some specifications may be changed without notification.

Specifications
Page 10 
Indoor model MUE-36HRFNX-QRD0 MUE-48HRFNX-QRD0 MUE-55HRFNX-QRD0
Outdoor model MOD30U-36HFN8-RRD0 MOE30U-48HFN8-RRD0 MOE30U-55HFN8-RRD0
Power supply (Indoor ) V- Ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50
Power Supply (Outdoor)V-Ph-Hz 380~415-3-50 380~415-3-50 380~415-3-50
Max. input consumption W 5600 6200 7500
Max. current A 10.0 11.2 14
Indoor fan motor
Model ZKFN-90-8-1 ZKFN-90-8-1 ZKFN-160-8-1-2
Qty 2 2 2
Insulation class E E E
IP rating IPX4 IPX4 IPX0
Input W 96.0 96.0 90.0
Capacitor uF / / /
Speed(Hi/Mi/Lo) r/min 1200/1050/850 1300/1100/850 1350/1050/850
Indoor coil
Number of rows 3 3 3
Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37
Fin spacing mm 1.3 1.3 1.3
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia.and type mm Φ7,Inner groove tube Φ7,Inner groove tube Φ7,Inner groove tube
Coil length x height x width mm 1300x294x40.11 1300x294x40.11 1300x294x40.11
Number of circuits 8 8 8
Indoor air flow (Hi/Mi/Lo) m3/h 2160/1844/1431 2329/1930/1417 2454/1834/1426
Indoor sound pressure level dB(A) 50/46/40 54/50/46 54/47/42
Indoor sound power level dB(A) 59 66 69
Indoor unit
Dimension(W*D*H) mm 1650x675x235 1650x675x235 1650x675x235
Packing (W*D*H) mm 1725x755x313 1725x755x313 1725x755x313
Net/Gross weight Kg 41.5/48 41.2/47.6 41.4/47.8
Design pressure MPa 4.2/1.5 4.2/1.5 4.2/1.5
Drainage water pipe diameter mm ODΦ25mm ODΦ25mm ODΦ25mm
Refrigerant piping Liquid side/ Gas side mm(inch) Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8")
Controller Remote contorl Remote contorl Remote contorl
Operation temperature °C 17-30 17-30 17-30
Room temperature
Cooling °C 17~32 17~32 17~32
Heating °C 0~30 0~30 0~30
Qty’per 20’ /40’ /40’HQ Indoor unit 72/147/167 72/147/167 72/147/167
Compressor
Model KTF310D43UMT KTQ420D1UMU KTQ420D1UMU
Type ROTARY ROTARY ROTARY
Brand GMCC GMCC GMCC
Capacity W 10010 13700 13700
Input W 2765 3700 3700
Rated current(RLA) A 5.38 7.02 7.02
Refrigerant oil/oil charge ml VG74/1000 VG74/1400 VG74/1400
Outdoor fan motor
Model ZKFN-120-8-2 ZKFN-85-8-22 ZKFN-85-8-22-2
Qty 1 2 2
Insulation class E E E
IP rating IPX4 IPX4 IPX4
Output W 150.0 126.0 126.0
Capacitor uF / / /
Speed r/min 1050 850 850

Specifications
Page 11 
Outdoor coil
Number of rows 2.0 1.6 2.0
Tube pitch(a)x row pitch(b) mm 25.4x22 25.4x22 25.4x22
Fin spacing mm 1.3 1.4 1.4
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia.and type mm Φ9.52,Inner groove tube Φ9.52,Inner groove tube Φ9.52,Inner groove tube
Coil length x height x width mm 995x762x44 990x1270x22+500x1270x22 990x1270x44
Number of circuits 4 8 8
Outdoor air flow m3/h 4000 7500 7500
Outdoor sound pressure level dB(A) 61 66 65
Outdoor sound power level dB(A) 66 72 74
Throttle type EXV+Capillary EXV+Capillary EXV+Capillary
Outdoor unit
Dimension(W*D*H) mm 946x410x810 952x415x1333 952x415x1333
Packing (W*D*H) mm 1090x500x875 1095x495x1480 1095x495x1480
Net/Gross weight Kg 81.5/87.0 106.7/119.9 111.3/124.3
Refrigerant type
Type - R32 R32 R32
GWP - 675 675 675
Charged quantity Kg 2.4 2.8 2.95
Design pressure MPa 4.2/1.5 4.2/1.5 4.2/1.5
Refrigerant piping
Liquid side/ Gas side mm(inch) Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8") Φ9.52/Φ15.9(3/8"/5/8")
Max. refrigerant pipe length m 65 65 65
Max. difference in level m 30 30 30
Ambient temperature
Cooling °C -15~50 -15~50 -15~50
Heating °C -15~24 -15~24 -15~24
Qty’per 20’ /40’ /40’HQ Outdoor unit 44/96/144 22/48/48 22/48/48
Notes:
1) Capacities are based on the following conditions:
Cooling(T1): - Indoor Temperature 27°C(80.6°F) DB /19 °C(66.2°F) WB Heating: - Indoor Temperature 20°C(68°F) DB / 15°C(59°F) WB
-Outdoor Temperature 35 °C(95°F) DB /24 °C(75.2°F) WB -Outdoor Temperature 7°C(44.6°F) DB / 6°C(42.8°F) WB
-Interconnecting Piping Length 5m - Interconnecting Piping Length 5 m
- Level Difference of Zero. - Level Difference of Zero.
2) Capacities are Net Capacities.
3) Due to our policy of innovation some specifications may be changed without notification.

Specifications
Page 12 
3. Dimensional Drawings
3.1 Indoor Unit
Model(KBtu/h) Unit A B C D
18-24
mm 1068 675 235 983
inch 42.05 26.57 9.25 38.7
30-60 mm 1650 675 235 1565
inch 64.96 26.57 9.25 61.61

Specifications
Page 13 
3.2 Outdoor Unit
Single Fan Outdoor Unit
Model(KBtu/h) unit W D H W1 A B C
18 mm 800 333 554 870 514 340 365
inch 31.49 13.11 21.81 34.25 20.23 13.39 14.37
24 mm 845 363 702 914 540 350 375
inch 33.27 14.29 27.64 35.98 21.26 13.78 14.8
30~42 mm 946 410 810 1030 673 403 455
inch 37.24 16.14 31.89 40.55 26.50 15.87 17.9

Specifications
Page 14 
Double Fan Outdoor Unit
Model unit W D H W1 A B C
48~55 mm 952 415 1333 1045 634 404 457
inch 37.48 16.34 52.48 41.14 24.96 15.9 17.99

Specifications
Page 15 
4. Centre of gravity
MOB30U-18HFN8-QRD0
MOCA30U-24HFN8-QRD0

Specifications
Page 16 
MOD30U-30HFN8-QRD0, MOD30U-36HFN8-QRD0, MOD30U-36HFN8-RRD0, MOD30U-42HFN8-QRD0

Specifications
Page 17 
MOE30U-48HFN8-RRD0, MOE30U-55HFN8-RRD0

Specifications
Page 18 
5. Electrical Wiring Diagrams
5.1 Indoor unit
Abbreviation Paraphrase
Y/G Yellow-Green Conductor
CAP1 Indoor Fan Capacitor
FAN Indoor Fan
PUMP PUMP
L LIVE
N NEUTRAL
TO CCM Comm.Bus Central Controller
T1 Indoor Room Temperature
T2 Coil Temperature of Indoor Heat Exchanger
P1 Super High Speed
P2 High Speed

Specifications
Page 19 
MUE-18HRFNX-QRD0, MUE-24HRFNX-QRD0
CN26
Y/G
T2
T1
CN64MIDDLE PIPE TEMP.
ROOM TEMP.
BLACK
WHITE
INDOOR UNIT
MAINBOARD
ON/OFF
Remote Control
CN23 CN33
ALARM
Alarm Output
CN5
DISPLAY
BOARD
TO WIRE
CONTROLLER
10
CN10(CN10A)5
CN7
CN25 RED
RED
Y/G
Y/G
RED(BROWN)
BLACK(BLUE)
CN3
RED(BROWN)
CN1
BLACK(BLUE
)CN2
Y/G
FILTER-BOARD
CN1
CN2
CN7
CN5
CN3
CN21
CN22
5
5
M
5
5
SWING
M
VSWING
CN24 5M
N
L
CN13
NEWFAN
CN14 CN11
2
Y/G
PUMP
Y/G
L(L1)N(L2)
Ferrite bead
CN19 CN16
BLUE
BLACK
GRAY
WHITE
To CCM
Comm.Bus
To outdoor
Comm.Bus
S1 S2 XY
(E)
Ferrite bead
Y/G
Y/G
DC Motor
CN1
This symbol indicates the element is
optional, the actual shape shall prevail.
NOTE:
TO POWER
FOR SEPARATE
POWER SUPPLY
TO OUTDOOR
FOR OUTDOOR
POWER SUPPLY
L(L1)N(L2)L(L1)N(L2)
Magnetic
Ring

Specifications
Page 20 
MUE-30HRFNX-QRD0, MUE-36HRFNX-QRD0, MUE-42HRFNX-QRD0, MUE-48HRFNX-QRD0, MUE-55HRFNX-QRD0
CN23
ON/OFF
CN33
ALARM
Alarm
Output
Remote
Control
CN21/CN22
VSWING
CN24
M
M
M
5
5
5
5SWING
INDOOR UNIT MAINBOARD
DC MOTOR
DRIVER MODLE
CN13
CN3
3
CN15
5
Ceiling-Floor Type
CN5 C.S
CN3
CN2
CN1
CN29 CN28
BLUE
BLACK
YELLOW
GRAY
To CCM
Comm.BusTo outdoor
Comm.Bus
WHITE
S1 S2
XY
(E)
NOTE:
This symbol indicates the elementis
optional,the actual shape shall prevail.
Y/G
Y/G
CN7
T2
T1
CN6
4
T2B
OUTER PIPE TEMP. SENSOR
BLACK
WHITE ROOM TEMP. SENSOR
DISPLAY
BOARD
10
CN10/CN10A TO WIRE
CONTROLLER
5
CN8
CN18
RED
RED
CN16
DC MOTOR
DRIVER MODLE
CN13 5
CN3
3
CN40
TO WIRE
CONTROLLER
4
Y/G
BLACK(BLUE)
RED(BROWN)
FILTER-BOARD
CN1CN2
CN7
Y/G
CN5CN3
RED(BROWN)
BLACK(BLUE)
Y/G
CN26
Y/G
Magnetic
Ring
TO POWER
Magnetic
Ring