Midea Corona MSC-07CRN1 Technical & Service Manual Download Page 1

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GD Midea Refrigeration Equipment Co.,Ltd

SPLIT TYPE, HEAT PUMP AIR CONDITIONERS

Technical & service manual 2005

Corona Series(7000-18000BTU)

R410a Wall Mounted

[Models]

MSC-07CRN1

MSC-07HRN1

MSC-09CRN1

MSC-09HRN1

MSC-12CRN1

MSC-12HRN1

MSC-18CRN1

MSC-18HRN1

Downloaded from AC-Manual.com Manuals

Summary of Contents for Corona MSC-07CRN1

Page 1: ...T TYPE HEAT PUMP AIR CONDITIONERS Technical service manual 2005 Corona Series 7000 18000BTU R410a Wall Mounted Models MSC 07CRN1 MSC 07HRN1 MSC 09CRN1 MSC 09HRN1 MSC 12CRN1 MSC 12HRN1 MSC 18CRN1 MSC 1...

Page 2: ...Specification 03 3 Dimensions 05 4 Refrigeration cycle diagram 09 5 Pressure table 10 6 Capacity table 14 7 Wiring diagram 20 8 Electronic function 25 9 Troubleshooting 33 10 Characteristic of temp s...

Page 3: ...2 1 Features 1 1Compact design 1 2High efficiency and quiet operation 1 3A class energy level Downloaded from AC Manual com Manuals...

Page 4: ...l Hi Mi Lo dB A 35 32 30 35 32 30 37 34 31 37 34 31 Dimension W H D mm 710 250 190 710 250 190 710 250 195 710 250 195 Packing W H D mm 800 340 270 800 340 270 800 340 270 800 340 270 Indoor unit Net...

Page 5: ...noise level Hi Mi Lo dB A 40 37 34 40 37 34 42 39 37 42 39 37 Dimension W H D mm 790 265 193 790 265 193 920 292 225 1000 353 280 Packing W H D mm 875x285x375 875x285x375 1015 368 295 1015 368 295 Ind...

Page 6: ...5 3 Dimensions 3 1 Indoor unit MSC 07CRN1 MSC 07HRN1 MSC 09CRN1 MSC 09HRN1 3 2 Indoor unit MSC 12CRN1 MSC 12HRN1 Downloaded from AC Manual com Manuals...

Page 7: ...6 3 2 Indoor unit MSC 18CRN1 MSC 18HRN1 Downloaded from AC Manual com Manuals...

Page 8: ...7 3 4 Outdoor unit MSC 07CRN1 MSC 07HRN1 3 5 Outdoor unit MSC 09CRN1 MSC 09HRN1 MSC 12CRN1 MSC 12HRN1 Downloaded from AC Manual com Manuals...

Page 9: ...8 MSC 18CRN1 MSC 18HRN1 12 5 Downloaded from AC Manual com Manuals...

Page 10: ...9 4 Refrigeration cycle diagram Downloaded from AC Manual com Manuals...

Page 11: ...7HRN1 Cooling mode Outdoor temperature Dry bulb temp Indoor Conditions Pressure 25 C 30 C 35 C 40 C 45 C 50 C 21 C D 15 C W Pressure kg cm 2 6 2 6 7 7 2 8 0 8 5 9 4 24 C D 17 C W Pressure kg cm 2 6 3...

Page 12: ...s Pressure 25 C 30 C 35 C 40 C 45 C 50 C 21 C D 15 C W Pressure kg cm 2 7 8 8 1 8 4 9 0 9 3 10 0 24 C D 17 C W Pressure kg cm 2 7 9 8 2 8 7 9 0 9 5 10 1 27 C D 19 C W Pressure kg cm 2 8 0 8 5 9 2 9 9...

Page 13: ...s Pressure 25 C 30 C 35 C 40 C 45 C 50 C 21 C D 15 C W Pressure kg cm2 8 4 8 5 8 8 8 9 9 4 9 9 24 C D 17 C W Pressure kg cm2 8 6 8 8 9 2 9 4 10 0 10 4 27 C D 19 C W Pressure kg cm2 8 8 9 2 9 4 9 8 10...

Page 14: ...s Pressure 25 C 30 C 35 C 40 C 45 C 50 C 21 C D 15 C W Pressure kg cm2 8 5 8 6 8 9 9 0 9 4 9 9 24 C D 17 C W Pressure kg cm2 8 7 8 9 9 3 9 5 10 0 10 5 27 C D 19 C W Pressure kg cm2 8 9 9 2 9 5 9 9 10...

Page 15: ...acity kW 1 83 1 67 1 65 1 64 1 57 1 52 32 C D 23 C W Input kW 0 58 0 64 0 66 0 73 0 8 0 86 6 2 MSC 07HRN1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25 C 30 C 35 C 40 C 45 C 50 C Total capacity...

Page 16: ...RE DRY Indoor Conditions 25 C 30 C 35 C 40 C 45 C 50 C Total capacity kW 2 42 2 41 2 24 2 03 1 87 1 75 Sensitive capacity kW 1 72 1 69 1 65 1 53 1 43 1 36 21 C D 15 C W Input kW 0 72 0 75 0 8 0 84 0 8...

Page 17: ...27 C D 19 C W Input kW 0 65 0 78 0 82 0 92 0 96 1 03 Total capacity kW 3 03 2 98 2 92 2 83 2 69 2 46 Sensitive capacity kW 2 05 1 88 1 96 1 87 1 87 1 85 32 C D 23 C W Input kW 0 65 0 8 0 86 0 95 0 99...

Page 18: ...2 891 2 715 2 589 2 503 32 C D 23 C W Input kW 0 969 1 088 1 189 1 302 1 349 1 455 6 6 MSC 12HRN1 SUMMER OUTDOOR TEMPERATURE DRY Indoor Conditions 25 C 30 C 35 C 40 C 45 C 50 C Total capacity kW 3 276...

Page 19: ...nditions 25 C 30 C 35 C 40 C 45 C 50 C Total capacity kW 4 914 4 781 4 658 4 232 4 119 3 932 Sensitive capacity kW 3 851 3 686 3 620 3 431 3 315 3 131 21 C D 15 C W Input kW 1 335 1 515 1 623 1 782 1...

Page 20: ...Input kW 1 416 1 572 1 720 1 880 1 968 2 139 Total capacity kW 6 323 6 150 5 768 5 402 5 252 4 970 Sensitive capacity kW 4 680 4 409 4 337 4 073 3 884 3 755 32 C D 23 C W Input kW 1 454 1 632 1 824 1...

Page 21: ...P FUSE1 3 15A 250V L1 L1 FRESH LOAD_VALVE LOAD_FAN OUT LOAD_HEAT L 1 CN11 N 1 CN10 O2_L 1 2 CN13 ZR1 10D471K C23 0 1uF 275VAC 1 2 CN15 TRANS_IN t PT C 82RM Dsa 1 Dsb 2 Q0 3 Q1 4 Q2 5 Q3 6 GND 7 CP 8 M...

Page 22: ...m 7 2 1 Cooling only 7 2 1 1 MSC 07CRN1 MSC 09CRN1 MSC 12CRN1 1 2 N Y G BLUE S RED C BLACK R BLACK COMPRESSOR CAPACITOR FAN MOTOR BLUE RED RED RED BLACK Y G INDOOR UNIT OUTDOOR UNIT Downloaded from AC...

Page 23: ...1 2 MSC 18CRN1 INDOOR UNIT COMPRESSOR CAPACITOR COMPRESSOR Y G WHITE S BLUE R C OVERLOAD RELAY RED OUTDOOR UNIT CAPACITOR FAN FAN MOTOR BLUE RED BLACK Y G BLACK BLACK Downloaded from AC Manual com Ma...

Page 24: ...23 7 2 2 Heating cooling 7 2 2 1 MSC 07HRN1 MSC 09HRN1 MSC 12HRN1 INDOOR UNIT OUTDOOR UNIT Downloaded from AC Manual com Manuals...

Page 25: ...18HRN1 INDOOR UNIT OUTDOOR UNIT RED BLACK BLUE BLACK Y G COMPRESSOR C S R WHITE BLUE COMPRESSOR CAPACITOR FAN MOTOR RED BLUE FAN CAPACITOR BLACK BLUE 4 WAY Y G OVERLOAD RELAY Downloaded from AC Manua...

Page 26: ...OST High wind defrosting temperature difference TMDEFROST Middle wind defrosting temperature difference TLDEFROST Low wind defrosting temperature difference TE1 Anti cold wind from Fan Off to Breeze t...

Page 27: ...Off After 5 Minutes Current up I5MIN I I3SEC Off Off After 3 Seconds I5MIN I I3SEC Off Off After 3 Seconds IFAN I I5MIN Off Off After 5 Minutes On On Off Heating mode IRESTORE I IFAN Low speed On On C...

Page 28: ...TE5 5 Minutes Off Off 8 7 Dehumidifying mode 8 7 1 The 4 way valve is off in dehumidifying mode 8 7 2 Compressor and Indoor Fan actions in dehumidifying mode NO Conditions Indoor Fan Compressor and O...

Page 29: ...he end of defrost 8 8 3 Action of compressor and outdoor fan motor at heating mode compressor must run for 7 minutes after starting and then judge temperature Meanwhile other protections are still val...

Page 30: ...alculate from the end of latest defrost evaporator high temp protection only closes outdoor fan with the compressor still running Add up to 90 minutes 8 9 2 Defrosting time a For defrosting condition...

Page 31: ...the set temp varies 8 11 Forced cooling function 8 11 1 Select forced cooling function with the forced cooling button or the switch 8 11 2 The compressor is unconditionally turned on after 30 minutes...

Page 32: ...urs the unit stops 8 14 4 Auto The economic running function operates in accordance with selected running mode by auto mode The total time is 7 hours after 7 hours the unit stops 8 15 Auto restart fun...

Page 33: ...5A 7 5A 7 5A IRESTORE 4 2A 4 2A 4 5A 4 5A 6 5A 6 5A IDEFROST 3 2A 3 5A 5 0A TE1 28 28 34 TE2 32 32 37 TE3 30 30 33 TE4 26 26 22 TE5 4 4 4 4 3 3 TE6 10 10 10 10 10 10 TE7 60 60 63 TE8 53 53 53 TE9 50...

Page 34: ...conditioner is operational This indicator flashes after power is on and illuminates when the unit is in operation This indicator illuminates when TIMER is set ON OFF OPERATION indicator TIMER indicato...

Page 35: ...operated Check if AC220V power supply outputs to Indoor PCB Check if AC220V exists at the primary coil of transformer Indoor PCB is defective Check if AC14 5V exists at the secondary coil of transfor...

Page 36: ...EEROM error indoor PCB is defective 9 3 3 5 Operation lamp flashes Timer lamp flashes This is alarm signal when the main chip can t detect over zero signal When such failure occurs the main control b...

Page 37: ...5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778 32 7 2946 59 2 4468 6 25...

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