GD Midea Refrigeration Equipment MSG-18HRN2 Technical & Service Manual

Split type, heat pump air conditioners

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GD Midea Refrigeration Equipment Co.,Ltd

SPLIT TYPE, HEAT PUMP AIR CONDITIONERS

Technical & service manual 2005

Glory Eco Series

[Models]

MSG-07CRN2

MSG-07HRN2

MSG-09CRN2

MSG-09HRN2

MSG-12CRN2

MSG-12HRN2

MSG-18CRN2

MSG-18HRN2

MSG-21CRN2

MSG-21HRN2

(50Hz)

R407C Wall Mounted

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Summary of Contents for GD Midea Refrigeration Equipment MSG-18HRN2

Page 1 GD Midea Refrigeration Equipment Co.,Ltd SPLIT TYPE, HEAT PUMP AIR CONDITIONERS Technical & service manual 2005 Glory Eco Series (50Hz) R407C Wall Mounted [Models] MSG-07CRN2 MSG-07HRN2 MSG-09CRN2 MSG-09HRN2 MSG-12CRN2 MSG-12HRN2 MSG-18CRN2 MSG-18HRN2 MSG-21CRN2 MSG-21HRN2...
Page 2: Table Of Contents
Contents 1. Features 2. Specification 3. Dimensions 4. Refrigeration cycle diagram 5. Operation limits 6. Wiring diagram 7. Troubleshooting 8. Electronic function...
Page 3: Features
1.Features 1.1 Compact design 1.2 High efficiency and quiet operation...
Page 4: Specification
2.Specification Glory Eco Model MSG-07HRN2 MSG-07CRN2 MSG-09HRN2 MSG-09CRN2 Power supply Ph-V-Hz 220-240V~,50Hz 220-240V~,50Hz 220-240V~,50Hz 220-240V~,50Hz Capacity Btu/h 7000 7000 9000 9000 Input 1050 1050 Cooling Rated current Btu/w.h Capacity Btu/h 8500 10000 Input 1050 Heating Rated current 2.93 Moisture Removal Max.
Page 5 Model MSG-12CRN2 MSG-12HRN2 Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz Capacity Btu/h 12000 12000 Input 1320 1320 Cooling Rated current Btu/w.h Capacity Btu/h 14000 Input 1360 Heating Rated current 3.02 Moisture Removal Max. input consumption 1800 1800 Max. current Starting current Model 4KS225EBA...
Page 6 Model MSG-18HRN2 MSG-18CRN2 MSG-21HRN2 MSG-21CRN2 Power supply Ph-V-Hz 220-240V~,50Hz 220-240V~,50Hz 1, 220-240V~, 50Hz 1, 220-240V~, Capacity Btu/h 18000 18000 21000 21000 Input 1980 1980 2350 2350 Cooling Rated current 10.7 10.7 Btu/w.h Capacity Btu/h 20500 23500 Input 1890 2450 Heating Rated current 11.2...
Page 7: Dimensions
3.Dimensions 3.1 Indoor unit MSG-07CRN2, MSG-07HRN2, MSG-09CRN2, MSG-09HRN2 3.2 Indoor unit MSG-12CRN2, MSG-12HRN2...
Page 8 3.3 Indoor unit MSG-18CRN2, MSG-18HRN2, MSG-21CRN2, MSG-21HRN2 3.4 Outdoor unit MSG-07CRN2, MSG-07HRN2, MSG-09CRN2, MSG-09HRN2...
Page 9 3.5 Outdoor unit MSG-12CRN2, MSG-12HRN2 3.6 Outdoor unit MSG-18CRN2, MSG-18HRN2...
Page 10 3.7 Outdoor unit MSG-21CRN2, MSG-21HRN2...
Page 11: Refrigeration Cycle Diagram
4.Refrigeration cycle diagram 4.1 Cooling/heating Indoor unit outdoor unit Valve Sensor of room temp 4 way valve Heat exchanger Heat exchanger Sensor of heat exchanger temp Compressor Valve Capillary 4.2 Cooling only Indoor unit outdoor unit Valve Sensor of room temp Heat exchanger Heat exchanger Sensor of heat exchanger temp...
Page 12: Operation Limits
5.Operation limits 5.1Cooling operation Outdoor unit air temp. COOLING Indoor air temp. Note : The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage. 5.2Heating operation Indoor air temp. Outdoor unit air temp. Note : The chart is the result from the continuous operation under constant air temperature conditions.
Page 13: Wiring Diagram
6.Wiring diagram 6.1 Cooling only 6.1.1 MSG-07CRN2,MSG-09CRN2...
Page 14 6.1.2 MSG-12CRN2...
Page 15 6.1.3 MSG-18CRN2 ,MSG-21CRN2...
Page 16 6.2 Heating/cooling 6.2.1 MSG-07HRN2, MSG-09HRN2...
Page 17 6.2.2 MSG-12HRN2...
Page 18 6.2.3 MSG-18HRN2, MSG-21HRN2...
Page 19: Troubleshooting
7.Troubleshooting 7.1 For all cooling only model Failure phenomenon Operation lamp Timer lamp Indoor fan speed has been out of control for over 1 minute Indoor room temp. or evaporator sensor is open circuit or short circuit Over current protection of the compressor occurs 4 times EEPROM error No over-zero signal r Extinguish...
Page 20: Electronic Function
8 Electronic function Electric Control working environment 8.1.1 input voltage: 175~253V 8.1.2 Input power frequency:50Hz 8.1.3 Ambient temperature: -7°C~+43°C 8.1.4 Indoor fan normal working amp is less than 1A, 8.1.5 Outdoor fan. Normal working amp is less than 1.5A 8.1.6 Four-way valve normal working amp is less than 1A.
Page 21 8.4.2 Sensor protection at open circuit and breaking disconnection 8.4.3 Temperature Fuse break protection 8.4.4 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High Fan+300RPM)or too low(lower than 400RPM), the unit stops and LED displays failure information and can’t returns to normal operation automatically.
Page 22 Condition Compressor Outdoor fan Temp. Time Temp. up T> TE6 T< TE6 >5 Minutes Temp. down T> TE5 T< TE5 >5 Minutes 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 Conditions Indoor Fan Compressor and Outdoor Fan...
Page 23 Condition Indoor fan speed T= Indoor exchanger temp. Indoor exchanger temp. up T<TE1 TE1<T<TE2 Breeze T>TE2 Setting fan speed Indoor exchanger temp. down T> TE3 Setting fan speed TE3<T<TE4 Breeze T<TE4 8.8.5 Auto wind at heating mode Condition Indoor fan speed T=Indoor Temp.-Setting Temp.
Page 24 minutes. If the temp. difference condition is satisfied out of 40 minutes, generally the defrosting time is 6 minutes, after three continuous 6-minute defrost, the fourth should be 10 minutes defrost. The circulation is as following: 6-minute defrost 6-minute defrost 6-minute defrost 10-minute defrost 8.9.3 Ending condition of defrosting If one of following conditions is satisfied, end the defrost and turn into heating mode: A.
Page 25 Select forced auto function with the forced auto button or the switch. In forced auto status the A/C operates at remote control mode with a set temp. of 24 . 8.13 Timer Function 8.14 Economic Running 8.14.1 The economic running function is available at cooling, heating or auto mode. 8.14.2 Cooling: The set temperature rise 1...
Page 26 Model MSG-12CRN2 MSG-12HRN2 MSG-18CRN2 MSG-18HRN2 MSG-21CRN2 MSG-21HRN2 I3SEC 14.5A 14.5A 16.0A 16.0A 17.0A 17.0A I5MIN 13.5A 13.5A 13.0A 13.0A 16.0A 16.0A IFAN 9.5A 9.5A 11.0A 11.0A 14.0A 14.0A IRESTORE 8.5A 8.5A 9.5A 9.5A IDEFROST 6.5A 6.5A ANGLCOOL 40° 40° 50°...

This manual is also suitable for:

Msg-18crn2 Msg-21hrn2 Msg-21crn2 Msg-12crn2 Msg-12hrn2 Msg-07crn2 ... Show all