Midea Blanc ON-OFF Series User manual

1
Blanc ON-OFF Series
Service Manual 2016
DM16-01.01.07en
MSMA1A-07HRN1 / MOAB02-07HN1
MSMA1A-09HRN1 / MOAB02-09HN1
MSMA1B-12HRN1 / MOBA01-12HN1
MSMA1C-18HRN1 / MOBA03-18HN1
MSMA1D-24HRN1 / MOCA02-24HN1
Библиотека СОК 

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CONTENTS
1. Precaution.................................................................................................................................................... 3
1.1 Safety Precaution ........................................................................................................................3
1.2 Warning .......................................................................................................................................3
2. Function........................................................................................................................................................ 6
3. Specification ................................................................................................................................................ 7
4. Dimension ...................................................................................................................................................11
4.1 Indoor Unit.................................................................................................................................11
4.2 Outdoor Unit ..............................................................................................................................15
5. Capacity tables........................................................................................................................................... 19
6. Refrigerant Cycle Diagram ....................................................................................................................... 24
7. Installation Details..................................................................................................................................... 25
7.1 Wrench torque sheet for installation ..........................................................................................25
7.2 Connecting the cables...............................................................................................................25
7.3 Pipe length and the elevation ....................................................................................................26
7.4 Installation for the first time........................................................................................................27
7.5 Adding the refrigerant after running the system for many years ................................................29
7.6 Re-installation while the indoor unit need to be repaired...........................................................30
7.7 Re-installation while the outdoor unit need to be repaired.........................................................31
8. Wiring Diagram.......................................................................................................................................... 33
8.1 Indoor Unit.................................................................................................................................33
8.2 Outdoor Unit ..............................................................................................................................35
9. Operation Characteristics......................................................................................................................... 37
10. Electronic function.................................................................................................................................. 38
10.1 Abbreviation ............................................................................................................................38
10.2 Display function .......................................................................................................................38
10.3 Main Protection .......................................................................................................................40
10.4 Operation Modes and Functions .............................................................................................40
11. Troubleshooting....................................................................................................................................... 48
11.1 Indoor Unit Error Display .........................................................................................................48
11.2 Trouble shooting ......................................................................................................................49

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1. Precaution
1.1 Safety Precaution
To prevent injury to the user or other people and property damage, the following
instructions must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage.
Before service the unit, be sure to read this service manual at first.
1.2 Warning
Installation
Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated
circuit.
There is risk of fire or electric shock.
For electrical work, contact the dealer, seller, a qualified electrician, or an authorized
service center.
Do not disassemble or repair the product, there is risk of fire or electric shock.
Always ground the product.
There is risk of fire or electric shock.
Install the panel and the cover of control box securely.
There is risk of fire of electric shock.
Always install a dedicated circuit and breaker.
Improper wiring or installation may cause fore or electric shock.
Use the correctly rated breaker of fuse.
There is risk of fire or electric shock.
Do not modify or extend the power cable.
There is risk of fire or electric shock.
Do not install, remove, or reinstall the unit by yourself (customer).
There is risk of fire, electric shock, explosion, or injury.
Be caution when unpacking and installing the product.
Sharp edges could cause injury, be especially careful of the case edges and the fins on the
condenser and evaporator.
For installation, always contact the dealer or an authorized service center.
Do not install the product on a defective installation stand.
Be sure the installation area does not deteriorate with age.
If the base collapses, the air conditioner could fall with it, causing property damage, product failure,
and personal injury.
Do not let the air conditioner run for a long time when the humidity is very high and a
door or a window is left open.
Take care to ensure that power cable could not be pulled out or damaged during
operation.
There is risk of fire or electric shock.
Do not place anything on the power cable.
There is risk of fire or electric shock.
Do not plug or unplug the power supply plug during operation.

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There is risk of fire or electric shock.
Do not touch (operation) the product with wet hands.
Do not place a heater or other appliance near the power cable.
There is risk of fire and electric shock.
Do not allow water to run into electrical parts.
It may cause fire, failure of the product, or electric shock.
Do not store or use flammable gas or combustible near the product.
There is risk of fire or failure of product.
Do not use the product in a tightly closed space for a long time.
Oxygen deficiency could occur.
When flammable gas leaks, turn off the gas and open a window for ventilation before
turn the product on.
If strange sounds or smoke comes from product, turn the breaker off or disconnect the
power supply cable.
There is risk of electric shock or fire.
Stop operation and close the window in storm or hurricane. If possible, remove the
product from the window before the hurricane arrives.
There is risk of property damage, failure of product, or electric shock.
Do not open the inlet grill of the product during operation. (Do not touch the electrostatic
filter, if the unit is so equipped.)
There is risk of physical injury, electric shock, or product failure.
When the product is soaked, contact an authorized service center.
There is risk of fire or electric shock.
Be caution that water could not enter the product.
There is risk of fire, electric shock, or product damage.
Ventilate the product from time to time when operating it together with a stove etc.
There is risk of fire or electric shock.
Turn the main power off when cleaning or maintaining the product.
There is risk of electric shock.
When the product is not be used for a long time, disconnect the power supply plug or
turn off the breaker.
There is risk of product damage or failure, or unintended operation.
Take care to ensure that nobody could step on or fall onto the outdoor unit.
This could result in personal injury and product damage.
CAUTION
Always check for gas (refrigerant) leakage after installation or repair of product.
Low refrigerant levels may cause failure of product.
Install the drain hose to ensure that water is drained away properly.
A bad connection may cause water leakage.
Keep level even when installing the product.
It can avoid vibration of water leakage.
Do not install the product where the noise or hot air from the outdoor unit could damage
the neighborhoods.
It may cause a problem for your neighbors.
Use two or more people to lift and transport the product.

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Do not install the product where it will be exposed to sea wind (salt spray) directly.
It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins,
could cause product malfunction or inefficient operation.
Operational
Do not expose the skin directly to cool air for long time. (Do not sit in the draft).
Do not use the product for special purposes, such as preserving foods, works of art etc.
It is a consumer air conditioner, not a precision refrigerant system.
There is risk of damage or loss of property.
Do not block the inlet or outlet of air flow.
Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
There is risk of fire, electric shock, or damage to the plastic parts of the product.
Do not touch the metal parts of the product when removing the air filter. They are very
sharp.
Do not step on or put anything on the product. (outdoor units)
Always insert the filter securely. Clean the filter every two weeks or more often if
necessary.
A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or
damage.
Do not insert hands or other objects through air inlet or outlet while the product is
operated.
Do not drink the water drained from the product.
Use a firm stool or ladder when cleaning or maintaining the product.
Be careful and avoid personal injury.
Replace the all batteries in the remote control with new ones of the same type. Do not
mix old and new batteries or different types of batteries.
There is risk of fire or explosion.
Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.
They may burn of explode.
If the liquid from the batteries gets onto your skin or clothes, wash it well with clean
water. Do not use the remote of the batteries have leaked.

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2. Function
Model Names of Indoor/Outdoor Units
On-Off
Capacity Indoor units Outdoor units
7k MSMA1A-07HRN1 MOAB02-07HN1
9k MSMA1A-09HRN1 MOAB02-09HN1
12k MSMA1B-12HRN1 MOBA01-12HN1
18k MSMA1C-18HRN1 MOBA03-18HN1
24k MSMA1D-24HRN1 MOCA02-24HN1

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3. Specification
Indoor model name MSMA1A-07HRN1 MSMA1A-09HRN1 MSMA1B-12HRN1
Outdoor model name MOAB02-07HN1 MOAB02-09HN1 MOBA01-12HN1
Power supply
Ph-V-H
z
220-240V- 50Hz, 1Ph 220-240V- 50Hz, 1Ph 220-240V- 50Hz, 1Ph
Cooling
Capacity
Btu/h 7000 9000 12000
kW 2,05 2,64 3,52
Input W 639 822 1096
Rated current A 2.8 3.6 4.8
EER W/W 3,21 3,21 3,21
Heating
Capacity
Btu/h 8000 9500 13000
kW 2,34 2,78 3,81
Input W 649 771 1055
Rated current A 2.8 3.4 4.8
COP W/W 3,61 3,61 3,61
Max. input consumption W 1050 1200 1800
Max. current A 5.5 6.0 9.0
Starting current A 16.1 21.7 25
Compressor
Model ASN82V1UDZ 44M213AH&FJKC ASM140V1VFT
Type ROTARY ROTARY ROTARY
Brand GMCC Rechi GMCC
Capacity Btu/h 6995/7029 8428/8530 13853/13853
Input W 702/735 830/860 955/995
Rated current(RLA) A 3.21/3.15 3.85/3.73 4.35/4.2
Locked rotor Amp(LRA) A 16.1 21.7 25
Thermal protector ----- B160-135-241E /
Thermal protector
position
EXTERNAL EXTERNAL INTERNAL
Capacitor uF 25 40 35
Refrigerant oil/oil
charge
ml ESTEL OIL VG74/300 ESTER OIL VG74 350cc ESTER OIL VG74/350
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 1050/950/800 1100/950/800 1150/950/800
Indoor coil
a.Number of rows 2 2 2
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 aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and
type
mm
Φ5,innergroove tube Φ5,innergroove tube Φ5,innergroove tube

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f.Coil length x height x
width
mm 510x253x23.2 510x253x23.2
595x78x23.2+595x117x2
3.2+595x78x23.2
g.Number of circuits 3 3 4
Indoor air flow (Hi/Mi/Lo) m3/h 436/381/300 456/380/306 564/436/342
Indoor noise level (Hi/Mi/Lo) dB(A) 36.0/34/30 39/34/29 42/38/36
Indoor unit
Dimension(W*D*H) mm 715*285*194 715*285*194 805x205x285
Packing (W*D*H) mm 765*270*345 765*270*345 870*285*360
Net/Gross weight Kg 7.1/9.3 7.1/9.3 8.0/10.3
Outdoor fan
motor
Model YKT-32-6-203L YKT-32-6-203L YKT-32-6-203L
Input W 72.5 72.5 72.5
Capacitor uF 2.5 2.5 2.5
Speed r/min 850 850 850
Outdoor coil
a.Number of rows 1 1 1
b.Tube pitch(a)x row
pitch(b)
mm
21x13.37 21x13.37
21×22
c.Fin spacing mm 1.4 1.4 1.2
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and
type
mm Φ7,innergroove tube Φ7,innergroove tube Φ7,innergroove tube
f.Coil length x height x
width
mm 685x508x13.37 685x508x13.37 744x504x22
g.Number of circuits 2 2 2
Outdoor noise level dB(A) 54 55 57
Outdoor unit
Dimension(W*D*H) mm 700x270x550 700x270x550 770x300x555
Packing (W*D*H) mm 815x325x615 815x325x615 900x345x585
Net/Gross weight Kg 23.1/25.2 25.3/27.6 29.5/32.0
Refrigerant type g R410A/520g R410A/590g R410A/740g
Design pressure MPa 4.2/1.5 4.2/1.5 4.2/1.5
Refrigerant
piping
Liquid side/ Gas side
mm(inc
h)
Φ6.35/Φ9.52(1/4"/3/8"
)
Φ6.35/Φ9.52(1/4"/3/8") Φ6.35/Φ12.7(1/4"/1/2")
Max. refrigerant pipe
length
m 20 20 20
Max. difference in level m 8 8 8
Connection wiring 5x1.0(Optional) 5x1.0(Optional) 3x1.5+2x0.75(Optional)
Plug type 3x1.5 / VDE 3x1.5 / VDE 3x1.5 / VDE
Remote Control RG70A/BGEF RG70A/BGEF RG70A/BGEF
Operation temperature ℃17-30 17-30 17-30
Room
temperature
Indoor(cooling/ heating) ℃17-32/0-30 17-32/0-30 17-32/0-30
Outdoor(cooling/heatin
g)
℃18-43/-7-24 18-43/-7-24 18-43/-7-24
Application area (Cooling Standard) m2 10-15 12-18 16-23

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Indoor model name MSMA1C-18HRN1 MSMA1D-24HRN1
Outdoor model name MOBA03-18HN1 MOCA02-24HN1
Power supply Ph-V-Hz 220-240V- 50Hz, 1Ph 220-240V- 50Hz, 1Ph
Cooling
Capacity
Btu/h 18000 24000
kW 5,28 7,03
Input W 1643 2503
Rated current A 7.1 10.9
EER W/W 3,21 2,81
Heating
Capacity
Btu/h 19000 26000
kW 5,57 7,62
Input W 1543 2374
Rated current A 6.7 10.3
COP W/W 3,61 3,21
Max. input consumption W 2400 4000
Max. current A 12 20
Starting current A / 54.5
Compressor
Model ASL211SV-C7LU1
PA280G2CS-4MTL
Type ROTARY ROTARY
Brand HITACHI GMCC
Capacity Btu/h 17299/- 27705/27824
Input W 1750/- 1910/1990
Rated current(RLA) A 4.75 8.8/8.05
Locked rotor Amp(LRA) A / 54.5
Thermal protector /
Thermal protector position INTERNAL INTERNAL
Capacitor uF 50 60
Refrigerant oil/oil charge ml ESTER OIL VG74/350 ESTER OIL VG74/850
Indoor fan motor
Model YKFG-25-4-6 YKFG-45-4-22
Input W 62 45
Capacitor uF 1.5 3
Speed(Hi/Mi/Lo) r/min 1180/1000/850 1200/1000/850
Indoor coil
a.Number of rows 2 2
b.Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37
c.Fin spacing mm 1.2 1.2
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and type mm Φ7,innergroove tube Φ7,innergroove tube
f.Coil length x height x width mm 750x84x26.74+750x147x26.74 780x210x26.74+780x105x26.74
g.Number of circuits 3 4
Indoor air flow (Hi/Mi/Lo) m3/h 776/645/523 1010/810/659
Indoor noise level (Hi/Mi/Lo) dB(A) 42/38/35 47/41.5/37
Indoor unit
Dimension(W*D*H) mm 957x223x302 1040x235x327
Packing (W*D*H) mm 1035*305*380 1120*405*330
Net/Gross weight Kg 10.2/13.3 12.9/16.4

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Outdoor fan motor
Model
YKT-48-6-206 YKT-75-6-200L
Input W 93 75
Capacitor uF 3 3
Speed r/min 880 850
Outdoor coil
a.Number of rows 2 2
b.Tube pitch(a)x row pitch(b) mm 21x13.37 21x13.37
c.Fin spacing mm 1.4 1.5
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and type mm Φ7,innergroove tube Φ7,innergroove tube
f.Coil length x height x width mm 755x504x26.74 740x630x13.37+760*630*13.37
g.Number of circuits 4 6
Outdoor noise level dB(A) 58 59
Outdoor unit
Dimension(W*D*H) mm 770x300x555 845x363x702
Packing (W*D*H) mm 900x345x585 965x395x755
Net/Gross weight Kg 34.9/37.3 49.2/52.4
Refrigerant type g R410A/1150g R410A/1750g
Design pressure MPa 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/Φ16(3/8"/5/8")
Max. refrigerant pipe length m 25 25
Max. difference in level m 10 10
Connection wiring 3x1.5+2x0.75(Optional) 4x1.0(Optional)
Plug type 1.5x3 -----
Remote Control RG70A/BGEF RG70A/BGEF
Operation temperature ℃17-30 17-30
Room temperature
Indoor(cooling/ heating) ℃17-32/0-30 17-32/0-30
Outdoor(cooling/heating) ℃18-43/-7-24 18-43/-7-24
Application area (Cooling Standard) m2 24-35 32-47

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4. Dimension
4.1 Indoor Unit
Model W D H
MSMA1A-07HRN1 715194285
MSMA1A-09HRN1 715194285
MSMA1B-12HRN1 805205285
MSMA1C-18HRN1 957233302
MSMA1D-24HRN1 1040235327

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For MSMA1A-07HRN1, MSMA1A-09HRN1,

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Service manual 13
For MSMA1B-12HRN1,
For MSMA1C-18HRN1,

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For MSMA1D-24HRN1,

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4.2 Outdoor Unit
More than 30cm
More than 60cm
More than 200cm
More than 30cm
More than 60cm
(Service space
︶
Fenceor
obstacles

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For MOAB02-07HN1, MOAB02-09HN1,

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For MOBA01-12HN1, MOBA03-18HN1,
487 W1
70 W2
298
555
300 D
H
12
60
93
H1
H2
D1
770 W
779 W3
322
D2
25 B1
90 B2
61.5 A2
12 A1
R6
286
D3

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For MOCA02-24HN1,

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5. Capacity tables
MSMA1A-07HRN1 / MOAB02-07HN1
Cooling
COOLINGOUTDOORTEMPERATUREDRY
IndoorConditions21ºC25ºC30ºC35ºC40ºC45ºC
21ºCD
15ºCW
TotalcapacitykW1,90 1,88 1,86 1,82 1,46 1,37
SensitivecapacitykW1,52 1,50 1,49 1,46 1,17 1,09
InputkW.2,05 2,03 2,02 1,98 2,04 2,12
24ºCD
17ºCW
TotalcapacitykW1,94 1,92 1,90 1,87 1,49 1,40
SensitivecapacitykW1,55 1,54 1,52 1,49 1,19 1,12
InputkW.0,65 0,64 0,64 0,62 0,64 0,67
27ºCD
19ºCW
TotalcapacitykW2,13 2,11 2,09 2,05 1,64 1,54
SensitivecapacitykW1,71 1,69 1,67 1,64 1,31 1,23
InputkW.0,66 0,66 0,65 0,64 0,66 0,68
32ºCD
23ºCW
TotalcapacitykW2,39 2,36 2,34 2,30 1,84 1,72
SensitivecapacitykW1,91 1,89 1,87 1,84 1,47 1,38
InputkW.0,74 0,74 0,73 0,72 0,74 0,77
Heating
HEATINGOUTDOORCONDITIONS
IndoorConditions
24ºCD
18ºCW
12ºCD
11ºCW
7ºCD
6ºCW
4ºCD
3ºCW
0ºCD
‐1ºCW
‐5ºCD
‐6ºCW
‐7ºCD
‐8ºCW
15ºCCapacitykW3,002,972,60 2,131,821,431,32
InputkW.0,83 0,82 0,72 0,67 0,65 0,57 0,56
18ºCCapacitykW2,862,832,48 2,031,741,361,27
InputkW.0,79 0,79 0,69 0,64 0,62 0,55 0,53
20ºCCapacitykW2,702,672,341,921,641,291,19
InputkW.0,75 0,74 0,65 0,60 0,59 0,52 0,50
22ºCCapacitykW2,302,271,99 1,631,391,091,01
InputkW.0,69 0,68 0,60 0,55 0,54 0,48 0,46
27ºCCapacitykW2,302,271,99 1,631,391,091,01
InputkW.0,70 0,69 0,61 0,56 0,55 0,48 0,47

Blanc On-off DM16-01.01.07en
20 Service manual
MSMA1A-09HRN1 / MOAB02-09HN1
Cooling
COOLINGOUTDOORTEMPERATUREDRY
IndoorConditions21ºC25ºC30ºC35ºC40ºC45ºC
21ºCD
15ºCW
TotalcapacitykW2,43 2,41 2,39 2,34 1,87 1,76
SensitivecapacitykW1,95 1,93 1,91 1,87 1,50 1,40
InputkW.2,63 2,61 2,59 2,54 2,61 2,72
24ºCD
17ºCW
TotalcapacitykW2,49 2,47 2,44 2,39 1,91 1,79
SensitivecapacitykW1,99 1,97 1,95 1,91 1,53 1,44
InputkW.0,83 0,82 0,82 0,80 0,82 0,86
27ºCD
19ºCW
TotalcapacitykW2,74 2,71 2,68 2,63 2,10 1,97
SensitivecapacitykW2,19 2,17 2,15 2,10 1,68 1,58
InputkW.0,85 0,84 0,84 0,82 0,84 0,88
32ºCD
23ºCW
TotalcapacitykW3,06 3,03 3,00 2,95 2,36 2,21
SensitivecapacitykW2,45 2,43 2,40 2,36 1,89 1,77
InputkW.0,95 0,94 0,94 0,92 0,95 0,98
Heating
HEATINGOUTDOORCONDITIONS
IndoorConditions
24ºCD
18ºCW
12ºCD
11ºCW
7ºCD
6ºCW
4ºCD
3ºCW
0ºCD
‐1ºCW
‐5ºCD
‐6ºCW
‐7ºCD
‐8ºCW
15ºCCapacitykW3,563,523,09 2,532,161,701,57
InputkW.0,99 0,97 0,85 0,79 0,77 0,68 0,66
18ºCCapacitykW3,403,372,95 2,422,061,621,50
InputkW.0,94 0,93 0,81 0,75 0,74 0,65 0,63
20ºCCapacitykW3,213,172,782,281,951,531,42
InputkW.0,89 0,88 0,77 0,71 0,70 0,61 0,60
22ºCCapacitykW2,732,702,36 1,941,651,301,21
InputkW.0,82 0,81 0,71 0,66 0,64 0,57 0,55
27ºCCapacitykW2,732,702,361,941,651,301,21
InputkW.0,83 0,82 0,720,66 0,65 0,57 0,56