Midea MSV1I-09HRDN1 Operating manual

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GD Midea Refrigeration Equipment Co.,Ltd
MULTI SPLIT TYPE, HEAT PUMP AIR CONDITIONERS
Technical service manual 2006
R410AVertu Inverter multi Series
Indoor Models
MSV1I-09HRDN1
MSV1I-12HRDN1
Outdoor Models
M2OA-18HRIN1
M3OA-27HRIN1
M40A-27HRIN1
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1. Product features
2. Dimensions
3. Refrigeration cycle diagram
4. Operation temperature limits
5. Indoor units combination
6. Wiring diagram
7. Wiring connection
8. Electric control functions
9. Troubleshooting
Annex 1 Characteristic of temp. sensor
Annex 2 Reference data
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1 Product Features
1.1 Powerful at cooling/heating.
1.2 Low voltage start-up function.
1.3 Anti-icing function at cooling mode.
1.4 Anti-cold air function at heating mode.
1.5 Auto-defrosting.
1.6 Outdoor electric current protection
1.7 Temperature protection of the outdoor compressor top.
1.8 Error self diagnosis function.
1.9 Free connection between indoor and outdoor unit
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2 Dimensions
2.1 Indoor unit
2.2 Outdoor unit
a) Outdoor unit M2OA-18HRIN1& M3OA-27HRIN1
Dimension
Mode W H D
9K 795 270 165
12K 845 286 165
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335
845
b) Outdoor unit M4OA-27HRIN1
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3 Refrigeration Cycle Diagram
3.1 Refrigeration circuit drawing of inverter quadplex type
Outdoor Unit
Indoor pipe out
temp. seneor C
Indoor pipe out
temp. seneor A
Indoor pipe out
temp. seneor B
Exhaust
temp. sensor
Check
Valve
Auxiliary
Capillary Main
Capillary
Filter C
Filter B
Filter A
Capillary C
Capillary B
Capillary A
Indoor Unit
Cross
flow fan
Evaporator
Liquid valve B
Liquid valve C
Gas valve B
Gas valve A
EXV A
EXV B
Axial flow fan
Condenser
Compressor
4-way
valve
EXV C
Gas valve C
Liquid valve A
Gas valve D
EXV C
Capillary C
Filter C
Liquid valve D
Indoor pipe out
temp. seneor D
Coil temp.
sensor
3.2 Refrigeration circuit drawing of inverter trinary type
Liquid valve A
Gas valve C
EXV C
4-way
valve
Compressor
Condenser
Axial
flow fan
EXV B
EXV A
Gas valve A
Gas valve B
Liquid valve C
Liquid valve B
Evaporator
Cross
flow fan
Indoor Unit
Capillary A
Capillary B
Capillary C
Filter A
Filter B
Filter C
Main
Capillary
Auxiliary
Capillary
Check
Valve
Exhaust
temp. sensor
Indoor pipe out
temp. seneor B
Indoor pipe out
temp. seneor A
Indoor pipe out
temp. seneor C
Outdoor Unit
Coil temp.
sensor
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3.2 Refrigeration circuit drawing of inverter binary type
Indoor Unit
Cross
flow fan
Evaporator
Liquid valve A
Liquid valve B
Gas valve B
Gas valve A
EXVA
EXVB
Axial flow fan
Condenser
Compressor
4-way
valve
Auxiliary
Capillary
Capillary A
Capillary B
Exhaust
temp. sensor
Indoor pipe out
temp. seneor A
Indoor pipe out
temp. seneor B
Filter A
Filter B
Outdoor Unit
Main
Capillary
Check
Valve
Coil temp.
sensor
4 Operation Temperature Limits
Indoor temperature 17℃～32℃
Cooling mode Outdoor temperature 0℃～50℃
Indoor temperature <=30
Heating mode Outdoor temperature -15℃～33℃
Indoor temperature 10℃～32℃
Dry mode Outdoor temperature 0℃～50℃
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5 Indoor units combination
5.1 M2OA-18HRIN1
Indoor units can be combined by
7000Btu/h
9000 Btu/h
12000Btu/h
7000Btu/h+9000 Btu/h
7000Btu/h+12000Btu/h
9000Btu/h+9000 Btu/h
9000Btu/h+12000Btu/h
12000Btu/h+12000Btu/h
12000Btu/h+18000Btu/h
9000Btu/h+18000Btu/h
7000Btu/h+18000Btu/h
5.2 M3OA-27HRIN1
Indoor units can be combined by
7000Btu/h
9000 Btu/h
12000Btu/h
7000Btu/h+9000 Btu/h
7000Btu/h+12000Btu/h
9000Btu/h+9000 Btu/h
9000Btu/h+12000Btu/h
12000Btu/h+12000Btu/h
12000Btu/h+18000Btu/h
9000Btu/h+18000Btu/h
7000Btu/h+18000Btu/h
7000Btu/h*2+9000 Btu/h
7000Btu/h*2+12000 Btu/h
7000Btu/h*2+18000 Btu/h
7000Btu/h*3
9000Btu/h*2+7000 Btu/h
9000Btu/h*2+12000 Btu/h
9000Btu/h*3
12000Btu/h*2+7000 Btu/h
12000Btu/h*2+9000 Btu/h
12000Btu/h+7000Btu/h+9000Btu/h
5.3 M4OA-27HRIN1
Indoor units can be combined by
7000Btu/h
9000 Btu/h
12000Btu/h
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7000Btu/h+9000 Btu/h
7000Btu/h+12000Btu/h
9000Btu/h+9000 Btu/h
9000Btu/h+12000Btu/h
12000Btu/h+12000Btu/h
12000Btu/h+18000Btu/h
9000Btu/h+18000Btu/h
7000Btu/h+18000Btu/h
7000Btu/h*2+9000 Btu/h
7000Btu/h*2+12000 Btu/h
7000Btu/h*2+18000 Btu/h
7000Btu/h*3
9000Btu/h*2+7000 Btu/h
9000Btu/h*2+12000 Btu/h
9000Btu/h*2+18000 Btu/h
9000Btu/h*3
12000Btu/h*2+7000 Btu/h
12000Btu/h*2+9000 Btu/h
12000Btu/h*3
7000Btu/h+9000Btu/h+12000Btu/h
7000Btu/h+9000Btu/h+18000Btu/h
9000Btu/h+9000Btu/h+18000Btu/h
7000Btu/h+12000Btu/h+18000Btu/h
9000Btu/h+12000Btu/h+18000Btu/h
7000Btu/h*2+9000 Btu/h*2
7000Btu/h*2+9000 Btu/h+12000 Btu/h
7000Btu/h*3+9000 Btu/h
7000Btu/h*3+12000 Btu/h
7000Btu/h*3+18000 Btu/h
7000Btu/h*4
9000Btu/h*2+7000 Btu/h+12000 Btu/h
9000Btu/h*3+7000 Btu/h
9000Btu/h*3+12000 Btu/h
97000Btu/h*4
Remark:
1. One, two, three or four indoor units can be connected according your need;
2. As 18000 Btu/h unit, just Cassette and duct are available.
3. There should be no more two duct indoor units and other indoor units should be all wall
mounted in a system;
4. There should be no more one cassette and other indoor units should be all wall
mounted in a system;
5. Cassette and duct can not be combined in a system;
6. When heating, capacity attenuate sharply if indoor unit capacity exceed too much.
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6. Wiring Diagram
6.1 Indoor unit
6.2 Outdoor unit M2OA-18HRIN1
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