Midea MVX36A-VA1 User manual

DM12-01.01.02-07en
Service manual
MIV V4+ Indoor units
Ceiling & Floor Type
MVX36A-VA1
MVX45A-VA1
MVX56A-VA1
MVX71A-VA1
MVX80A-VA1
MVX90A-VA1
MVX112A-VA1
MVX140A-VA1

DM12-01.01.02-07en MIV V4+ Indoor Units
Ceiling & Floor Type MVX-A-VA1 1
Ceiling & Floor Type
1. Feature ...............................................................................2
2. Specifications....................................................................3
3. Dimension..........................................................................5
4. Service Space....................................................................8
5. Piping Diagrams................................................................9
6. Wiring Diagram ...............................................................10
7. Capacity Tables...............................................................11
8. Electric Characteristics..................................................17
9. Noise Levels....................................................................18

MIV V4+ Indoor Units DM12-01.01.02-07en
2 Ceiling & Floor Type MVX-A-VA1
1. Feature
1.1 Convenient for installation
1.1.1 The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow
1.1.2 It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due
to a structure such as one lighting
1.1.3 The EXV is built-in the indoor unit, compact size, and convenient for the installation.
1.1.4 Reserved the socket on main control board for water pump and PCB can be customized if you need
water pump function.
1.2 Three air flow speed: high/middle/low, double air guides.
1.3 Two direction auto swing (vertical & horizontal) and wide
angle air flow
1.4 Low noise, creates quiet and comfortable environment.
1.4.1 Electronic expansion valve, ensure precise flow control, as
well lower modulation noise when EXV operating.
1.4.2 Smoother airflow with less turbulence. Owing to the
multiple-blade fan and the air guide design, the airflow is
getting smoother and more comfortable
1.5 RM05/BG(T)E-A remote wireless controller which can set
the indoor unit address is standard, and wired controller is optional.

DM12-01.01.02-07en MIV V4+ Indoor Units
Ceiling & Floor Type MVX-A-VA1 3
2. Specifications
Model MVX36A-VA1 MVX45A-VA1 MVX56A-VA1 MVX71A-VA1
Power supply V- Ph-Hz 220-240V~, 1Ph, 50Hz
Cooling
Capacity kW 3.6 4.5 5.6 7.1
Input W
49 120 122 125
Rated current A 0.55 0.55 0.55 0.57
Heating
Capacity kW 4 5 6.3 8
Input W
49 120 122 125
Rated current A 0.55 0.55 0.55 0.57
Indoor fan
motor
Model YSK25-6L-1 YSK55-4L-1 YSK55-4L-1 YSK55-4L-1
Type AC motor
Brand Welling
Input W 33.4/31.1/29.5 125/105/85 125/105/85 125/105/85
Capacitor μF 1.2uF/450V 2UF/450V 2.5UF/450V 2.5UF/450V
Speed (hi/mid/lo) r/min 756/666/592 1310/1190/1040 1310/1190/1040 1310/1190/1040
Indoor coil
Number of rows 2 3 3 3
Tube pitch*row pitch mm 25.4x22 25.4x22 25.4x22 25.4x22
Fin spacing mm 1.8 1.8 1.8 1.8
Fin type Hydrophilic aluminum
Tube outside
diameter and type mm Ф9.53
Inner groove tube
length *height *width mm 804*254*44 804*254*66 804*254*66 804*254*66
Number of circuits 3 3 3 3
Indoor air flow (H/M/L) m3/h 650/570/500 800/600/500 800/600/500 800/600/500
Indoor noise level (Hi/Mid/Lo) dB(A) 40/38/36 43/41/38 43/41/38 43/41/38
Indoor unit
Dimension (W×H×D) mm 990x660x206 990x660x206 990x660x206 990x660x206
Packing (W×H×D) mm 1089x744x296 1089x744x296 1089x744x296 1089x744x296
Net/Gross weight kg 26/32 28/34 28/34 28/34
Refrigerant type R410A
Throttle Type EXV (Built-in)
Model BD20FKS(L)
Design pressure MPa 4.4/2.6
Refrigerant
piping Liquid side/ Gas side mm Ф6.35/ Ф12.7 Ф9.53/ Ф16
Connecting
wiring
Power wiring mm23*2.5(L≤20m); 3*3.5(L≤50m)
Signal wiring mm23*0.75
Drainage water pipe diameter ODФ16
Controller Wireless remote controller RM05/BG(T)E-A (Standard), to set address
Operation temp ℃ Cooling：17～32；Heating:10～28
Notes: 1. Nominal cooling capacities are based on the following conditions: return air temp. : 27°CDB, 19°CWB, outdoor
temp.:35°CDB,equivalent ref. Piping: 8m(horizontal)
2. Nominal heating capacities are based on the following conditions: return air temp.: 20°CDB, outdoor temp.:
7°CDB,6°CWB,equivalent ref. Piping: 8m(horizontal)

MIV V4+ Indoor Units DM12-01.01.02-07en
4 Ceiling & Floor Type MVX-A-VA1
Model MVX80A-VA1 MVX90A-VA1 MVX112A-VA1 MVX140A-VA1
Power supply V- Ph-Hz 220-240V~, 1Ph, 50Hz
Cooling
Capacity kW 8 9 11.2 14
Input W
130 130 182 182
Rated current A 0.6 0.6 0.83 0.83
Heating
Capacity kW 9 10 12.5 15.5
Input W
130 130 182 182
Rated current A 0.6 0.6 0.83 0.83
Indoor fan
motor
Model YSK80-4A-1 YSK80-4A-1 YSK59-4D x2 YSK59-4D x2
Type AC motor
Brand Welling
Input W 143/122/110 143/122/110 (89.5/81.5/77.5) x 2(89.5/81.5/77.5) x 2
Capacitor μF 3.5UF/450V 3.5UF/450V 2.5UF/450V x2 2.5UF/450V x2
Speed (hi/mid/lo) r/min 1310/1210/1115 1310/1210/1115 1170/1070/995 1170/1070/995
Indoor coil
Number of rows 3 3 3 3
Tube pitch*row pitch mm 25.4x22 25.4x22 25.4x22 25.4x22
Fin spacing mm 1.8 1.8 1.8 1.8
Fin type Hydrophilic aluminum
Tube outside
diameter and type mm Ф9.53
Inner groove tube
length *height *width mm 1094*254*66 1360*254*66
Number of circuits 5 5 5 5
Indoor air flow (H/M/L) m3/h 1200/900/700 1200/900/700 1980/1860/1730 1980/1860/1730
Indoor noise level (Hi/Mid/Lo) dB(A) 45/43/40 45/43/40 47/45/42 47/45/42
Indoor unit
Dimension (W×H×D) mm 1280 x 660x206 1280 x 660x206 1670x680x244 1670x680x244
Packing (W×H×D) mm 1379x744x296 1379x744x296 1764x760x329 1764x760x329
Net/Gross weight kg 34.5/41 34.5/41 54/59 54/59
Refrigerant type R410A
Throttle Type EXV (Built-in)
Model BD20FKS(L) BD24FKS(L)
Design pressure MPa 4.4/2.6
Refrigerant
piping Liquid side/ Gas side mm Ф9.53/ Ф16
Connecting
wiring
Power wiring mm23*2.5(L≤20m); 3*3.5(L≤50m)
Signal wiring mm23*0.75
Drainage water pipe diameter ODФ16
Controller Wireless remote controller RM05/BG(T)E-A (Standard), to set address
Operation temp ℃ Cooling：17～32；Heating:10～28
Notes: 1. Nominal cooling capacities are based on the following conditions: return air temp. : 27°CDB, 19°CWB, outdoor
temp.:35°CDB,equivalent ref. Piping: 8m(horizontal)
2. Nominal heating capacities are based on the following conditions: return air temp.: 20°CDB, outdoor temp.:
7°CDB,6°CWB,equivalent ref. Piping: 8m(horizontal)

DM12-01.01.02-07en MIV V4+ Indoor Units
Ceiling & Floor Type MVX-A-VA1 5
3. Dimension
3.1 Outline dimension of MVX36A-VA1 MVX45A-VA1 MVX56A-VA1 MVX71A-VA1
906.5
995
175200
655
198.2
39.5
35
98
133.5
371401
207
63.5
96.5
3.2 Main dimension:
MVX36A-VA1 MVX45A-VA1
Outer Length: 995mm, Height: 665mm, Depth: 200mm
Gas tube: Ф12.7mm,Liquid tube: Ф6.35mm
MVX56A-VA1 MVX71A-VA1
Outer Length: 995mm, Height: 665mm, Depth: 200mm
Gas tube: Ф15.9mm Liquid tube:Ф9.53

MIV V4+ Indoor Units DM12-01.01.02-07en
6 Ceiling & Floor Type MVX-A-VA1
3.3 Outline dimension of MVX80A-VA1 MVX90A-VA1
1284.5
655
198.2
1194.5
98
133.5
175200
207
39.5
37
547 515
63.5
96.5
¦µ9.53mm
¦µ15.9mm
3.4 Main dimension:
MVX80A-VA1 MVX90A-VA1
Outer Length: 1285mm, Height: 665mm, Depth: 200mm
Gas tube: Ф15.9mm Liquid tube: Ф9.53

DM12-01.01.02-07en MIV V4+ Indoor Units
Ceiling & Floor Type MVX-A-VA1 7
3.5 Outline dimension of MVX112A-VA1 MVX140A-VA1
1542.3
112.5
69.5
724.5 630.5
1670
144
184.5
255.2
675
115.8
235
¦µ9.53mm
¦µ15.9mm
3.6 Main dimension:
MVX112A-VA1 MVX140A-VA1
Outer Length: 1670mm, Height: 675mm, Depth: 235mm
Gas tube: Ф15.9mm, Liquid tube: Ф9.53

MIV V4+ Indoor Units DM12-01.01.02-07en
8 Ceiling & Floor Type MVX-A-VA1
4. Service Space
MVX36A-VA1 MVX45A-VA1 MVX56A-VA1 MVX71A-VA1
MVX80A-VA1 MVX90A-VA1 MVX112A-VA1 MVX140A-VA1
>600mm
Keep more than 600mm clearance between the unit and left/right side wall.
600mm
As well 600mm and up between the front panel and wall. For well ventilation.
>20
Keep 20mm up between the rear and wall if standing installed. As well 20mm between top and the drop
ceiling if under ceiling installed
Note:
This indoor unit may be installed on ceilings up to 3.5 m in height. However, if the ceiling is higher
than 2.7m, the remote control will have to be set locally.
Air Outlet
Obstacle
Piping connection
Obstacle
Drop ceiling
Air Outlet

DM12-01.01.02-07en MIV V4+ Indoor Units
Ceiling & Floor Type MVX-A-VA1 9
5. Piping Diagrams
MVX36A-VA1 MVX45A-VA1 MVX56A-VA1 MVX71A-VA1
MVX80A-VA1 MVX90A-VA1 MVX112A-VA1 MVX140A-VA1
flare nut
flare nut
T2B
gas side
motor
heat exchanger
fan
EXV
liquid side
T2
T1