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If the temp. difference condition 

 is satisfied for more than 40 minutes, the defrosting time is 6 

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. The defrost time has reached to 6 or 10 minutes. 

B. The compressor current has reached to 

I

DEFROST

 or above,   

I

DEROST 

differs in different models. 

 16

Summary of Contents for DMA-2703L

Page 1: ...Manual de servicio ACONDICIONADOR DE AIRE TIPO MULTI SPLIT Modelo ...

Page 2: ...2 1 Features 3 2 Specification 4 3 Dimensions 5 4 Refrigeration cycle diagram 6 5 Operation limits 7 6 Wiring diagram 8 7 Troubleshooting 11 8 Electronic function 12 ...

Page 3: ...3 1 Features 1 1Compact design 1 2High efficiency and quiet operation ...

Page 4: ...ve tube Ф7 Innergroove tube Indoor coil Number of circuits 2 2 Indoor air flow Hi Mi Lo m3 h 420x3 Indoor noise level Hi Mi Lo dB A 39 39 Dimension W H D mm 750 250 188 750 250 188 Packing W H D mm 830X336X280 830X336X280 Indoor unit Net Gross weight Kg 8 5 10 8 5 10 Model YDK51 6D YDK51 6D Input W 130 130 Capacitor uF 3 3 Outdoor fan motor Speed r min 750 750 Number of rows 2 2 Fin type code Hydr...

Page 5: ...3 Dimensions 3 1 Indoor unit 3 2 Outdoor unit 5 ...

Page 6: ...4 Refrigeration cycle diagram 4 1 Cooling for MS2G 18CR Compressor Compressor Condenser Evaparator Evaparator 4 1 Cooling for DMA 2703L 6 ...

Page 7: ...tdoor unit air temp DB 45 7 DRY COOLING 40 35 30 25 20 10 15 20 25 30 35 40 Indoor air temp DB Note The chart is the result from the continuous operation under constant air temperature conditions However excludes the initial pull down stage ...

Page 8: ...6 Wiring diagram 6 1 MS2G 18CR Indoor unit Outdoor unit 8 ...

Page 9: ...6 2 DMA 2703L Indoor unit 9 ...

Page 10: ...Outdoor unit 10 ...

Page 11: ...f the compressor occurs 4 times X Indoor fan speed has been out of control for over 1 minute X X Zero cross error Indoor evaporator sensor is open circuit or short circuit X X Indoor room temp sensor is open circuit or short circuit X X Temp fuse broken X EEROM error On On On r Extinguish Flash at 5Hz ...

Page 12: ...door fans when they change from higher wind to lower wind IRESTORE Amp self protection return value THDEFROST 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 temperature TE2 Anti cold wind from Breeze to Setting Fan Speed temperature TE3 Anti cold wind ...

Page 13: ...fan Remark I IRESTORE On On On Low speed On On Cooling mode IFAN I I5MIN Off 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 Low speed On On Cooling mode Current down I IRESTORE On On On If compressor turns off for continuously 4 times due to current protection in 5 minutes from Compressor On the unit s...

Page 14: ...or heat exchanger is the same as that of cooling mode 8 7 5 At dehumidifying mode the action of fans of indoor is the same as that of air only mode 8 8 Heating mode only for heat pump model 8 8 1 Generally the 4 way valve is open in heating mode but it is closed in defrosting mode 4 way valve must delay 2 minutes compared with compressor if the compressor changed into non heating mode or turned of...

Page 15: ...n On 8 8 7 The louver opens to Standard Angle ANGLHEAT when power is on for the first time 8 9 Defrosting operation Available for heating only 8 9 1 Defrosting condition Defrosting starts when either of the following A and B are satisfied A The compressor keeps running for 40 minutes or more B The temperature difference of evaporator and room temperature meets one of the following Temp of evaporat...

Page 16: ...ous 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 The defrost time has reached to 6 or 10 minutes B The compressor current has reached to IDEFROST or above IDEROS...

Page 17: ...ed out for at least 15 minutes once selected If the compressor cannot start for 15 minutes reselect the operation mode according to the room temp and set temp or reselect when 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 cooling operation whose ...

Page 18: ...s later the set temperature will maintain as a constant and the air circulation is kept at low speed Cold air proof function takes precedence over all 8 14 4 Auto The economic running function operates in accordance with selected running mode by auto mode 8 15 Auto restart function optional In case of a sudden power failure this function automatically sets the unit to previous settings before the ...

Page 19: ...19 8 16 Models and Parameters Indoor unit Model DMA 2703L CSPEEDH 1100 CSPEEDM 1020 CSPEEDL 950 CSPEEDS 800 TE5 2 TE6 7 ...

Page 20: ... Certificate Nu mber CC 454 GD M idea Ref rigeration Equipme nt Co Ltd have received environm ental man agement sy stem stand ard certification ISO 1 4001 Certificate Nu mber CC 1417 Please note that the data in this bookmay be changed without notice for further i mprovement on q uality and performance 20 ...

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