Midea M2OA-18HRN1, Technical & Service Manual

Page 1: ...rigeration Equipment Co Ltd MULTI SPLIT TYPE HEAT PUMP AIR CONDITIONERS Technical service manual 2005 R410A Corona multi Series Indoor Models MSCI 09HRN1 MSCI 12HRN1 Outdoor Models M2OA 18HRN1 M2OA 21...

Page 2: ...SERIES 1 Features 2 Specification 3 Dimensions 4 Refrigeration cycle diagram 5 Operation limits 6 Wiring diagram 7 Troubleshooting 8 Electronic function 9 Exploded view parts 10 Characteristic of tem...

Page 3: ...216 1 Features 1 1Compact design 1 2High efficiency and quiet operation 1 3Unitary outdoor unit design...

Page 4: ...apacitor uF 1 2 1 2 Indoor fan motor Speed hi mi lo r min 1200 950 850 1220 1000 800 a Number of rows 2 2 b Tube pitch a x row pitch b mm 21x13 37 21x13 37 c Fin spacing mm 1 3 1 3 d Fin type code Unh...

Page 5: ...0x2 1 2 1 0x2 1 2 1 0x2 1 2 Max input consumption W 2160 2580 3400 3720 Max current A 9 9 11 7 15 6 16 7 Starting current A 21 7 29 9 31 8 31 8 Model PA108X1C 4FTx2 PA108X1C 4FT PA145X2C 4FT PA200X2CS...

Page 6: ...oor coil g Number of circuits 2 2 2 2 3 3 3 3 Outdoor air flow m3 h 2200 2200 3200 3200 Outdoor noise level dB A 56 56 58 58 Dimension W H D mm 895X655X345 895X655X345 860X830X330 860X830X330 Packing...

Page 7: ...ol Electronic control Operation temp 17 30 17 30 17 30 17 30 Ambient temp 18 45 cooling 7 30 heating 18 45 cooling 7 30 heating 18 45 cooling 7 30 heating 18 45 cooling 7 30 heating Application area m...

Page 8: ...214 3 Dimensions 3 1 Indoor unit a Indoor unit 9K b Indoor Unit 12K...

Page 9: ...215 3 2 Outdoor unit a Outdoor unit 18K 21K b Outdoor unit 27K 30K...

Page 10: ...1 drive 2 system PMV1 1 drive 2 system SV1 Primary four way valve SV2 Secondary four way valve PMV1 PMV2 Electronic expansive valve T1 T2 Indoor pipe temperature sensor condenser four way valve evapo...

Page 11: ...ontinuous operation under constant air temperature conditions However excludes the initial pull down stage 5 2Heating operation Indoor air temp DB 30 25 20 15 10 5 5 5 15 25 Outdoor unit air temp DB N...

Page 12: ...218 6 Wiring diagram Indoor unit CORONA INDOOR UNIT Outdoor unit FOR 1 DRIVE 2 OUTDOOR UNIT...

Page 13: ...219 FOR 1 DRIVE 3 OUTDOOR UNIT...

Page 14: ...p sensor is open circuit or short circuit on EEPROM error on Over current protection of the compressor occurs 4 times in 1h X r Extinguish Flash at 5Hz On Light 7 2 Outdoor unit Failure phenomenon LED...

Page 15: ...cator a Usually it displays the temperature settings When change the setting temperature this indicator begins to flash and stops 20 seconds later b It displays the room temperature when the air condi...

Page 16: ...unit pipe sensor T4 Outdoor temperature sensor 8 4 Systematic functions Remote receiving Testing and forced run Position set for indoor unit wind vane LED displaying and alarm On or off Timer Protect...

Page 17: ...ff TA Ts On On Temp down TA Ts Off Off TA Indoor ambient temperature TS Setting temperature through the remote controller Auto fan under cooling mode Condition T Indoor Temp Setting Temp Indoor fan sp...

Page 18: ...frost 8 9 3 Action conditions of compressor under heating mode compressor must run for 7 minutes after starting and then judge temperature Meanwhile other protections are still valid Condition Compres...

Page 19: ...porator high temperature protection compressor off temperature TE8 Evaporator high temperature protection fan off temperature TE9 Evaporator high temperature protection restoring temperature 8 10 Defr...

Page 20: ...on whose fan mode is set as low the A C operates under the DRY mode with a set temp of 24 8 12 3 All protections of remote control cooling are available under forced cooling operation 8 13 Forced Auto...

Page 21: ...227 8 16 Outdoor fan motor T4 Outdoor temp T4 Outdoor fan motor T4 27 High speed Cooling mode T4 25 Low speed T4 13 Low speed Heating mode T4 11 High speed...

Page 22: ...228 Exploded view parts a INDOOR UNIT...

Page 23: ...229 b UNIVERSAL OUTDOOR UNIT...

Page 24: ...230...

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