Midea MSMBA-07HRN1 User manual

1 Service manual
Mission ON-OFF SERIES
Service Manual 2016
MSMBA-07HRN1(W) / MOAB01-07HN1
MSMBA-09HRN1(W) / MOAB01-09HN1
MSMBB-12HRN1(W) / MOBA02-12HN1
MSMBC-19HRN1(W) / MOBA02-18HN1
MSMBD-24HRN1(W) / MOCA01-24HN1
DM16-01.01.21en
Библиотека СОК 

Mission On-off DM16-01.01.21en
2 Service manual
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. Operation Characteristics......................................................................................................................... 33
9. Electronic function.................................................................................................................................... 34
9.1 Abbreviation ..............................................................................................................................34
9.2 Display function.........................................................................................................................34
9.3 Main Protection .........................................................................................................................36
9.4 Operation Modes and Functions ...............................................................................................37
10. Troubleshooting....................................................................................................................................... 43
10.1 Indoor Unit Error Display .........................................................................................................43
10.2 Diagnosis and Solution............................................................................................................44

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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 MSMBA-07HRN1(W) MOAB01-07HN1
9k MSMBA-09HRN1(W) MOAB01-09HN1
12k MSMBB-12HRN1(W) MOBA02-12HN1
19k MSMBC-19HRN1(W) MOBA02-18HN1
24k MSMBD-24HRN1(W) MOCA01-24HN1

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3. Specification
Indoor model name MSMBA-07HRN1(W) MSMBA-09HRN1(W) MSMBB-12HRN1(W)
Outdoor model name MOAB01-07HN1 MOBA02-12HN1 MOBA02-12HN1
Power supply Ph-V-Hz 220-240V~ 50Hz, 1Ph 220-240V~ 50Hz, 1Ph 220-240V~ 50Hz, 1Ph
Cooling
Capacity
Btu/h 7500 9000 12000
kW 2.20 2.64 3.52
Input W 685 822 1096
Rated current A 3.0 3.6 4.8
EER W/W 3,21 3,21 3,21
Heating
Capacity
Btu/h 8000 9500 12500
kW 2.34 2.78 3.66
Input W 649 771 1015
Rated current A 2.8 3.3 4.4
COP W/W 3,61 3,61 3,61
Max. input consumption W 920 1200 1800
Max. current A 4.0 6.0 9.0
Starting current A 16.1 21 25
Compressor
Model ASN82V1UDZ ASM106V1VDZA ASM140V1VFT
Type ROTARY ROTARY ROTARY
Brand GMCC GMCC GMCC
Capacity Btu/h 6995/7029 10390/10492 13853/13853
Input W 702/735 712/732 955/995
Rated current(RLA) A 3.21/3.15 3.3/3.15 4.35/4.2
Locked rotor Amp(LRA) A 16.1 21 25
Thermal protector BF635-MA UP3-20 UP3-21
Thermal protector position EXTERNAL INTERNAL INTERNAL
Capacitor uF 25 25 35
Refrigerant oil/oil charge ml ESTEL OIL VG74/300 ESTEL OIL VG74/350 ESTER OIL VG74/350
Indoor fan motor
Model YKFG-13-4-38L YKFG-13-4-38L YKFG-13-4-38L
Input W 34 34 34
Capacitor uF 1.2 1.2 1.2
Speed(Hi/Mi/Lo) r/min 1050/900/700 1050/900/700 1120/1000/800
Indoor coil
a.Number of rows 1/2 1/2 2
b.Tube pitch(a)x row
pitch(b)
mm 21x13.37 21x13.37 21x13.37
c.Fin spacing mm 1.2/1.3 1.2/1.3 1.3
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and
type
mm Φ6,innergroove tube Φ6,innergroove tube Φ7.innergroove tube
f.Coil length x height x
width
mm
525x84x13.37+525x210
x26.74
525x84x13.37+525x210x2
6.74
605x294x26.74
g.Number of circuits 2 2 2

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Indoor air flow (Hi/Mi/Lo) m3/h 450/371/264 450/371/264 520/440/270
Indoor noise level (Hi/Mi/Lo) dB(A) 36/31/26 35/31/29 37/31/25
Indoor unit
Dimension(W*D*H) mm 730x198x293 730x198x293 810x200x300
Packing (W*D*H) mm 810x285x375 810x285x375 890x285x385
Net/Gross weight Kg 7.7/10.2 7.7/10.2 8.9/11.9
Outdoor fan
motor
Model YKT-32-6-203L YKT-32-6-203L YKT-32-6-203L
Input W 72.5/67 72.5/67 72.5/67
Capacitor uF 2 2 2.5
Speed (HI) r/min 850/770 850/770 850/770
Outdoor coil
a.Number of rows 1 1 1
b.Tube pitch(a)x row
pitch(b)
mm 21x13.37 21x13.37 25.4x22
c.Fin spacing mm 1.4 1.4 1.5
d.Fin type (code) Hydrophilic aluminium Hydrophilic aluminium Hydrophilic aluminium
e.Tube outside dia.and
type
mm Φ7,innergroove tube Φ7,innergroove tube Φ9.52 inner groove tube
f.Coil length x height x
width
mm 685x504x13.37 685x504x13.37 745x508x22
g.Number of circuits 2 2 2
Outdoor air flow (HI) m3/h / / /
Outdoor noise level dB(A) 52 52 56
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 26.0/28.2 29.7/32
Refrigerant type g R410A/520 R410A/730 R410A/950
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/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
Thermostat type RG58B1/BGE RG58B1/BGE RG58B1/BGE
Operation temperature Ԩ17-30 17-30 17-30
Room
temperature
Indoor(cooling/ heating) Ԩ17-32/0-30 17-32/0-30 17-32/0-30
Outdoor(cooling/heating) Ԩ18-43/-7-24 18-43/-7-24 18-43/-7-24
Application area m210-15 10-15 16-23

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Indoor model name MSMBC-19HRN1(W) MSMBD-24HRN1(W)
Outdoor model name MOBA02-18HN1 MOCA01-24HN1
Power supply Ph-V-Hz 220-240V~ 50Hz, 1Ph 220-240V~ 50Hz, 1Ph
Cooling
Capacity
Btu/h 19000 24000
kW 5.57 7.03
Input W 1735 2503
Rated current A 7.5 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 38 54.5
Compressor
Model PA215M2AS-7KTL6 PA280G2CS-4MUL
Type ROTARY ROTARY
Brand GMCC GMCC
Capacity Btu/h 20131 27705/27825
Input W 1435 1910/1990
Rated current(RLA) A 6.5 8.80/8.65
Locked rotor Amp(LRA) A 38 54.5
Thermal protector UP3-64H --
Thermal protector position INTERNAL INTERNAL
Capacitor uF 50 60
Refrigerant oil/oil charge ml ESTEL OIL VG74/750 ESTER OIL VG74/850
Indoor fan motor
Model YKFG-28-4-3 YKFG-45-4-22
Input W 56 77
Capacitor uF 1.5 3.0
Speed(Hi/Mi/Lo) r/min 1140/950/800 1120/1020/950
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 1.3
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 750x336x26.74 820x336x26.74
g.Number of circuits 4 4
Indoor air flow (Hi/Mi/Lo) m3/h 789/633/510 1084/967/883
Indoor noise level (Hi/Mi/Lo) dB(A) 42.5/36/29.5 44.5/43/42
Indoor unit
Dimension(W*D*H) mm 980x225x325 1090x235x338
Packing (W*D*H) mm 1055x305x405 1165x420x315
Net/Gross weight Kg 11.2/14.3 13.9/17.6
Outdoor fan motor Model YKT-48-6-206 YKT-75-6-200L

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Input W 93/81 144
Capacitor uF 3 3
Speed (HI) r/min 880/820 860
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 1.4
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 760x651x26.74
g.Number of circuits 4 3
Outdoor air flow (HI) m3/h / /
Outdoor noise level dB(A) 58,5 60,5
Outdoor unit
Dimension(W*D*H) mm 770x300x555 845x363x702
Packing (W*D*H) mm 900x345x585 965x395x755
Net/Gross weight Kg 34.6/37.1 47.7/50.8
Refrigerant type g R410A/1200 R410A/1800
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/Φ15.9(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 3x1.5 --
Thermostat type RG58B1/BGE RG58B1/BGE
Operation temperature Ԩ17-30 17-30
Room temperature
Indoor(cooling/ heating) Ԩ17-32/0-30 17-32/0-30
Outdoor(cooling/heating) Ԩ18-43/-7-24 18-43/-7-24
Application area m225-37 32-47