Midea MTIU-07HWFNX-QRD0W User manual

TM_MULTI_R32_3D INV_EU_S_NA_1909
MULTI SPLIT TYPE
R32 3D INVERTER CONTROL
TECHNICAL MANUAL

Table of Contents Page
1. Specifications ................................................................................................ 4
1. Model Reference
2. Functions
3. General Specifications
4. Indoor Unit Combination
5. Dimensional Drawings
6. Centre of Gravity
7. Air Velocity and Temperature Distributions
8. Electrical Wiring Diagrams
9 Refrigerant Cycle Diagrams
10. Noise Criterion Curves
11. Electrical Characteristics
12. Static Pressure
2. Product Features ........................................................................................... 78
1. Operation Modes and Functions
2. Remote Controller Functions
3. Installation .................................................................................................... 105
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

Table of Contents Page
8. Additional Refrigerant Charge
9. Engineering of Insulation
10. Engineering of Electrical Wiring
11. Test Operation
4. Static Pressure Design .................................................................................. 136
1. Introduction
2. Charts for friction losses in round ducts
3. Dynamic losses
4. Corresponding relation between Rectangular duct and Round duct
5. Method for duct calculation
6. Unit conversion
7. Recommended outlet velocity for different occasions

Contents
1. Model Reference....................................................................................................5
2. Functions ................................................................................................................6
3. General Specifications...........................................................................................8
4. Indoor Unit Combination ....................................................................................20
5. Dimensional Drawings ........................................................................................22
6. Centre of Gravity .................................................................................................31
7. Air Velocity and Temperature Distributions ......................................................33
8. Electrical Wiring Diagrams..................................................................................41
9 Refrigerant Cycle Diagrams ................................................................................57
10. Noise Criterion Curves.........................................................................................61
11. Electrical Characteristics......................................................................................73
12. Static Pressure......................................................................................................75
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 Outdoor Unit Power Supply
A6 Duct type
MTIU-07HWFNX-QRD0W
M2OG-14HFN8-Q
M2OD-18HFN8-Q
M2OC-18HFN8-Q
M3OF-21HFN8-Q
M3OF-27HFN8-Q
M3OE-27HFN8-Q
M4OE-28HFN8-Q
M4OB-36HFN8-Q
M5OD-42HFN8-Q
1Φ, 220-240V~, 50Hz
MTIU-09HWFNX-QRD0W
MTIU-12HWFNX-QRD0W
MTIU-18HWFNX-QRD0W
Compact Cassette type
MCA3I-07HRFNX-QRD0
MCA3I-09HRFN8-QRD0
MCA3U-12HRFNX-QRD0W
MCA3U-18HRFNX-QRD0W
Wall mounted type- Forest
MSAFBU-07HRDNX-QRD0GW
MSAFBU-09HRDN8-QRD0GW
MSAFBU-12HRDN8-QRD0GW
MSAFCU-18HRFN8-QRD0GW
MSAFDU-24HRFN8-QRD0GW
Wall mounted type-Aurora
MSABAU-09HRFN8-QRD0GW
MSABBU-12HRFN8-QRD0GW
MSABDU-18HRFN8-QRD0GW
MSABEU-24HRFN8-QRD0GW
Wall mounted type-All Easy
MSAEBU-09HRFN8-QRD6GW
MSAEBU-12HRFN8-QRD0GW
MSAECU-18HRFN8-QRD0GW
MSAEDU-24HRFN8-QRD0GW

Specifications
Page 6 
2. Functions
Functions Model A6 Duct type Compact Cassette type
Standard filter O •
Flange O X
Healthy filter X X
Drainage pump O •
IDU auxiliary electric heater X X
Infrared wired controller (KJR-12B, KJR-90A) •O
485 wired controller (KJR-120C, KJR-120G2) O O
2 cores non-polarity wired controller (KJR-120G) O O
Wifi O O
XYE port for central controller • •
Alarm output terminal • •
Remote on/off terminal • •
Golden Fin(Outdoor unit) • •
Note:
•: Standard
O: Optional
X: Not available

Specifications
Page 7 
Functions
Model All Easy Aurora Forest
High Density Filter •••
Cold Catalyst Filter •••
Fire Proof •••
Turbo •••
Sleep •••
Auto-restart •••
Timer •••
super ionizer •(9k~18k)/ O(24k) X X
horizontal louver autoswing •••
2 ways piping connection •••
H-shaped installation plate X • •
Monolithic installation plate O O O
louver position memory function •••
follow me O O O
ECO O •O
Remote on/off terminal O O X
Alarm output terminal O X X
XYE port for centrol control&weekly timer O O X
wired controller(simplex KJR-12B,etc.) O O O
wired controller(duplex KJR-120G/TF-
E,non-polarity) O X X
WIFI O O O
Golden Fin(Outdoor unit) •••
Note:
•: Standard
O: Optional
X: Not available

Specifications
Page 8 
3. General Specifications
Indoor model MTIU-07HWFNX-QRD0W MTIU-09HWFNX-QRD0W MTIU-12HWFNX-QRD0W MTIU-18HWFNX-QRD0W
Power supply (Indoor ) V- Ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50 220~240-1-50
Cooling
Capacity Btu/h 7000 9000 12000 18000
Input W 170 180 185 200
Current A 1.0 1.1 1.1 1.3
Heating
Capacity Btu/h 8000 10000 13000 19000
Input W 170 180 185 200
current A 1.0 1.1 1.1 1.3
Indoor fan motor
Model ZKFN-55-8-22 ZKFN-55-8-22 ZKFN-55-8-22 ZKFN-160-8-1-2
Qty 1 1 1 1
Input W 130.0 130.0 130.0 90.0
Capacitor uF / / / /
Speed(Hi/Mi/Lo) r/min 1080/920/790 1080/920/790 1170/1030/850 1650/1300/1000
Indoor coil
a.Number of rows 3.0 3.0 3 3 3
b.Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37 21x13.37
c.Fin spacing mm 1.4 1.4 1.4 1.4
d.Fin type (code) Hydrophilic
aluminum(Golden)
Hydrophilic
aluminum(Golden)
Hydrophilic
aluminum(Golden)
Hydrophilic
aluminum(Golden)
e.Tube outside dia.and type mm Φ7,Inner groove tube Φ7,Inner groove tube Φ7,Inner groove tube Φ7,Inner groove tube
f.Coil length x height x width mm 526x210x40.11 526x210x40.11 526x210x40.11 695x252x40.11
g.Number of circuits 4 4 4 4
Indoor air flow (Hi/Mi/Lo) m3/h 500/340/230 500/340/230 600/480/300 880/650/350
ESP
Rated Pa 25 25 25 25
Range Pa 0-40 0-40 0-60 0-100
Indoor sound pressure level (Hi) dB(A) 40/34.5/27.5 40/34.5/27.5 40/34.5/27.5 41.5/38/33
Indoor sound power level (Hi) dB(A) 58 58 59 59
Indoor unit
Dimension(W*D*H) mm 700x506x200 700x506x200 700x506x200 880x674x210
Packing (W*D*H) mm 860x540x275 860x540x275 860x540x275 1070x725x280
Net/Gross weight Kg 18/22 18/22 18/22 24.3/29.6
Design pressure MPa 4.3/1.7 4.3/1.7 4.3/1.7 4.3/1.7
Drainage water pipe dia. mm ODΦ25 ODΦ25 ODΦ25 ODΦ25
Refrigerant piping Liquid side/ Gas side mm(inch) Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ12.7(1/4"/1/2")
Controller Wired Control Wired Control Wired Control Wired control
Operation temperature °C 17~30 17~30 17~30 17~30
Room temperature
Cooling °C 17~32 17~32 17~32 17~32
Heating °C 0~30 0~30 0~30 0~30
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 9 
Indoor model MCA3I-07HRFNX-QRD0 MCA3I-09HRFN8-QRD0 MCA3U-12HRFNX-QRD0W MCA3U-18HRFNX-QRD0W
Power supply (Indoor ) V- Ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50 220~240-1-50
Cooling
Capacity Btu/h 7000 9000 12000 18000
Input W 40 40 40 102
Current A 0.18 0.18 0.18 0.44
Heating
Capacity Btu/h 7500 10000 14000 18500
Input W 40 40 40 102
current A 0.18 0.18 0.18 0.44
Indoor fan motor
Model ZKFP-46-8-1 ZKFP-46-8-1 ZKFP-46-8-1 ZKFP-46-8-1
Old Model WZDK46-38G WZDK46-38G WZDK46-38G WZDK46-38G
Qty 1 1 1 1
Input W 45 45 45 45
Capacitor uF - - - /
Speed(Hi/Mi/Lo) r/min 600/520/460 600/520/460 700/580/500 720/625/540
Indoor coil
a.Number of rows 3.0 1.0 1.0 2 2
b.Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37 21x13.37 21x13.37
c.Fin spacing mm 1.3 1.3 1.3 1.3
d.Fin type (code) Hydrophilic aluminum Hydrophilic
aluminum(Golden)
Hydrophilic
aluminum(Golden)
Hydrophilic
aluminum(Golden)
e.Tube outside dia.and type mm Φ7,Inner groove tube Φ7,innergroove tube Φ7,innergroove tube Φ7,innergroove tube
f.Coil length x height x width mm 1380x210x13.37 1380x210x13.37 1360x210x26.74 1360x210x26.74
g.Number of circuits 2 2 4 4
Indoor air flow (Hi/Mi/Lo) m3/h 580/500/450 580/500/450 617/504/415 680/560/500
Indoor sound pressure level (Hi) dB(A) 37.0/33.0/31.5 38/33/29 41/37/34 44/42/41
Indoor sound power level (Hi) dB(A) 51 53 58 56
Indoor unit
Dimension (W x Dx H)(body) mm 570x570x260 570x570x260 570x570x260 570x570x260
Packing (W x Dx H)(body) mm 662x662x317 662x662x317 662x662x317 662x662x317
Dimension (W x Dx H)(panel) mm 647x647x50 647x647x50 647x647x50 647x647x50
Packing (W x Dx H)(panel) mm 715x715x123 715x715x123 715x715x123 715x715x123
Net/Gross weight(body) kg 14.5/17.3 14.5/17.3 16.2/21.4 16.2/21.4
Net/Gross weight kg 2.5/4.5 2.5/4.5 2.5/4.5 2.5/4.5
Design pressure MPa 4.3/1.7 4.3/1.7 4.3/1.7 4.3/1.7
Drainage water pipe dia. mm ODΦ25 ODΦ25 ODΦ25 ODΦ25
Refrigerant piping Liquid side/ Gas side mm(inch) Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ12.7(1/4"/1/2")
Controller Remote Control Remote Control Remote Control Remote control
Operation temperature °C 17~30 17~30 17~30 17~30
Room tempera-
ture
Cooling °C 17~32 17~32 17~32 17~32
Heating °C 0~30 0~30 0~30 0~30
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 MSAFBU-07HRDNX-QRD0GW MSAFBU-09HRDN8-QRD0GW MSAFBU-12HRDN8-QRD0GW
Power supply (Indoor ) V- Ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50
Cooling
Capacity Btu/h 7000 9000 12000
Input W 20 20 20
Current A 0.09 0.09 0.09
Heating
Capacity Btu/h 8000 10000 13000
Input W 20 20 20
current A 0.09 0.09 0.09
Indoor fan motor
Model YKFG-13-4-38L YKFG-13-4-38L YKFG-13-4-38L
Input W 40 40 40
Capacitor uF 1.2 1.2 1.2
Speed(Hi/Mi/Lo) r/min 1030/850/700 1030/850/700 1130/950/750
Indoor coil
a.Number of rows 3.0 2.0 2.0 2.0
b.Tube pitch(a)x row pitch(b) mm 19.5x11.6 19.5x11.6 19.5x11.6
c.Fin spacing mm 1.2 1.2 1.2
d.Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum
e.Tube outside dia.and type mm Φ5,innergroove tube Φ5,innergroove tube Φ5,innergroove tube
f.Coil length x height x width mm 595x273x23.2 595x273x23.2 595x273x23.2
g.Number of circuits 4 4 4
Indoor air flow (Hi/Mi/Lo) m3/h 520/460/340 520/460/340 600/500/360
Indoor sound pressure level (Hi) dB(A) 40/30/26/21 40/30/26/21 40/34/26/22
Indoor sound power level (Hi) dB(A) 54 53 53
Indoor unit
Dimension(W*D*H) mm 805x194x285 805x194x285 805x194x285
Packing (W*D*H) mm 870x270x360 870x270x360 870x270x360
Net/Gross weight Kg 7.5/9.7 7.5/9.7 7.5/9.7
Design pressure MPa 4.3/1.7 4.3/1.7 4.3/1.7
Refrigerant piping Liquid side/ Gas side mm(inch) Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ9.52(1/4"/3/8")
Controller Wired
Control Remote Control Remote Control Remote Control
Operation temperature °C 17~30 17~30 17~30
Room tempera-
ture
Cooling °C 17~32 17~32 17~32
Heating °C 0~30 0~30 0~30
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.