Midea MFA-12HRN1 Configuration guide

MCAC-UTSM-2009-03 Contents
Contents i
Part 1 General Information ........................................................................1
Part 2 Indoor Units......................................................................................5
Part 3 Outdoor Units.................................................................................17
Part 4 Installation......................................................................................36
Part 5 Control............................................................................................56
※The specifications, designs, and information in this book are subject to change without notice for
product improvement.

MCAC-UTSM-2009-03 General Information
General Information 1
Part 1
General Information
1. Model Names of Indoor/Outdoor Units .......................2
2. External Appearance.....................................................2
2.1 Indoor Units.................................................................................. 2
2.2 Outdoor Units............................................................................... 2
3. Nomenclature ................................................................3
4. Features .........................................................................4

Model Names of Indoor/Outdoor Units MCAC-UTSM-2009-03
2 General Information
1. Model Names of Indoor/Outdoor Units
1.1 Indoor Units
Model name Dimension (mm) Net/Gross weight (kg) Power supply
MFA-12HRN1
Width: 700
Height: 600
Depth: 210
15/20 220~240V-1ph-50Hz
MFA-18HRN1
Width: 700
Height: 600
Depth: 210
15/20 220~240V-1ph-50Hz
MFA-12HRN1-Q
Width: 700
Height: 600
Depth: 210
20/25 220~240V-1ph-50Hz
1.2 Outdoor Units
Model name Dimension (mm) Net/Gross weight (kg) Power supply
MON-12HN1
Width: 780
Height: 547
Depth: 250
34/38 220~240V-1ph-50Hz
MON-18HN1
Width: 842
Height: 695
Depth: 324
52/56 220~240V-1ph-50Hz
MON-12HN1-Q
Width: 780
Height: 547
Depth: 250
35/39 220~240V-1ph-50Hz
2. External Appearance
2.1 Indoor Units
MFA-12HRN1/MFA-18HRN1/MFA-12HRN1-Q
2.2 Outdoor Units
12,000Btu/h 18,000Btu/h

MCAC-UTSM-2009-03 Nomenclature
General Information 3
3. Nomenclature
3.1 Indoor Unit
M F A - 12 H R N1 - Q
Q: Quickly Coupling
Refrigerant Type
N1 : R410A
Control Mode
R: Remote Control
Function Code
C: Cooling Only
H: Cooling & Heating
Capacity (×1000Btu/h)
Product Series
A: 1st Designed
Product Category
F: Console Type
Midea
3.2 Outdoor Unit
M O N - 12 H N1- Q
Q: Quickly Coupling
Refrigerant
N1: R410A
Function Code
C: Cooling Only
H: Cooling & Heating
Capacity (×1000Btu/h)
Non-universal Outdoor Unit
O: Outdoor unit
N: Non-universal
Midea

Features MCAC-UTSM-2009-03
4 General Information
4. Features
1. Achieves set temperature more quickly
——air supplying from top and bottom or from top only
——air inlet from four directions
2. Compact unit body, space saving
——this unit body is very thin and harmonious with room. It is beautiful, elegant and space saving.
——light weight and compact.
3. Flexible installation
——can be used for floor standing or lower wall applications
4. High efficiency filter
——built in Formaldehyde nemesis filter
——active-carbon and biological anti-virus filter is optional.
5. Comfort
——flexible air blow: vertical auto swing and wide angle louvers ensure that warm air reaches the furthest
corners of the room and increase the air flow coverage
——Low noise operation
——Low starting power and precise room temperature adjustment
6. Powerful mode can be selected for rapid cooling or heating.
7. Easy cleaning grille and maintenance

MCAC-UTSM-2009-03 Indoor Units
Indoor Units 5
Part 2
Indoor Units
1. Specifications................................................................6
2. Dimensions....................................................................7
3. Service Space................................................................7
4. Wiring Diagrams............................................................8
5. Air Velocity and Temperature Distributions ...............9
6. Capacity Tables ...........................................................10
7. Electric Characteristics..............................................13
8. Sound Levels...............................................................13
9. Exploded View.............................................................14
10. Accessories...............................................................16

Specifications MCAC-UTSM-2009-03
6 Indoor Units
1. Specifications
Model MFA-12HRN1 MFA-18HRN1 MFA-12HRN1-Q
Code 220044000090 220044100280 220044000100
Power supply V-ph-Hz 220~240-1-50 220~240-1-50 220~240-1-50
Cooling
Capacity Btu/h 12000 18000 12000
Input W 1096 1650 1101
Heating
Capacity Btu/h 13380 19600 13300
Input W 1122 1715 1117
Indoor fan
motor
Model RD-280-20-8A RD-280-20-8A RD-280-20-8A
Type DC MOTOR DC MOTOR DC MOTOR
Input W 24.5/19.5/16.8/13/10.5 38/33.5/24.5/15.2 24.5/19.5/16.8/13/10.5
Capacitor uF / / /
Speed(Hi/Mi/Lo) r/min 680/610/560/460/420 890/840/780/680/530 680/610/560/460/420
Indoor coil
Number of rows 2 2 2
Tube pitch(a)×row
pitch(b) mm 21×13.37 21×13.37 21×13.37
Fin spacing mm 1.3 1.3 1.3
Fin type (code) Hydrophilic aluminum Hydrophilic aluminum Hydrophilic aluminum
Tube outside dia. and
type mm Ф7 Inner grooved copper tube
Ф7 Inner grooved
copper tube
Ф7 Inner grooved
copper tube
Coil length× height ×
width mm 512×378×26.74 512×378×26.74 512×378×26.74
Number of circuits 2 2 2
Indoor air flow(Hi/Mi/Lo) m3/h 550/490/460/380/350 740/700/640/560/440 550/490/460/380/350
Indoor noise level (sound pressure) dB(A) 35/33/31/27/23 38/35/33/31/29 35/33/31/27/23
Indoor unit
Dimension (W×H×D) mm 700×600×210 700×600×210 700×600×210
Packing (W×H×D) mm 810×710×305 810×710×305 810×710×365
Net/Gross weight kg 15/20 15/20 20/25
Refrigerant type R410A R410A R410A
Design pressure MPa 4.2/2.0 4.2/2.0 4.2/2.0
Refrigerant
piping Liquid side/ Gas side mm φ6.4/φ12.7 φ6.4/φ12.7 φ6.4/φ12.7
Drainage water pipe diameter mm φ16 φ16 φ16
Connection
wiring
Power wiring mm23×1.5 3×2.5 3×1.5
Signal wiring mm24×1.5 4×2.5 4×1.5
Controller R51D/E(standard) R51D/E(standard) R51D/E(standard)
Operation temperature ℃17~30 17~30 17~30

MCAC-UTSM-2009-03 Dimensions
Indoor Units 7
2. Dimensions
3. Service Space

Wiring Diagrams MCAC-UTSM-2009-03
8 Indoor Units
4. Wiring Diagrams
4.1 MFA-12HRN1 MFA-18HRN1
4.2 MFA-12HRN1-Q