Daewoo DMA-2703L User manual

Manual de servicio
ACONDICIONADOR DE AIRE TIPO MULTI SPLIT
Modelo:

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

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1.Features
1.1Compact design
1.2High efficiency and quiet operation

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2.Specification
Model DMA-2703
Factory Model T-KF(26X3)GW/I1T3Y
Power supplyPh-V-Hz 1Ph,220-240V~,60Hz 1Ph,220-240V~,60Hz
CapacityBtu/h 9000x327000
Input W890x2 1900
Rated current A3.9x2 8.3
Cooling
EER Btu/w.h 10.1 /10.1 11.0
MoistureRemovalL/h1.0x21.0x3
Max. input consumption W2250 2350
Max.currentA1212.5
StartingcurrentA18 23
Model 2P14C235ANA2P20C225BNE
Type ROTARYROTARY
Brand Matsushita Matsushita
CapacityBtu/h 7525 11070
Input W750 1080
Rated current(RLA) A3.2 5.1
Locked rotor Amp(LRA) A15.0 23.0
CapacitoruF302530
Compressor
Refrigerant oil ml 350 270 350
Model RPG13H RPG13H
Input W36 36
Capacitor uF 1.2 1.2
Indoor fan motor
Speed(hi/mi/lo) r/min 1330 1330
Number of rows 2 2
Fin type (code) Hydrophilic aluminium Hydrophilic aluminium
Tube type mm
Ф7,Innergroovetube 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) Hydrophilic aluminium Hydrophilic aluminium
Tube type mm Ф9.52, Innergroove tube Ф9.52, Innergroove tube
Outdoor coil
Number of circuits 2 2
Outdoor air flow m3/h 2000 2000
Outdoor noise level dB(A) 58 58
Dimension(W*H*D) mm 895*655*345 895*655*345
Packing (W*H*D) mm 1045*715*470 1045*715*470
Outdoor unit
Net/Gross weight Kg 60/65
Refrigerant type g680+1000
Designpressure MPa 2.6 2.6
Liquid side/ Gas side mm(inch) Ф6.35/Ф9.53 Ф6.35/Ф9.53
Max. refrigerant pipe length m 10 10
Refrigerant piping
Max. difference in level m 5 5
Operationtemp ℃17-30 17-30
Ambienttemp ℃18-45 18-45
Application area m2 (14-21)x3

3.Dimensions
3.1 Indoor unit
3.2 Outdoor unit
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4.Refrigeration cycle diagram
4.1 Cooling for MS2G-18CR
Compressor
Compressor
Condenser Evaparator
Evaparator
4.1 Cooling for DMA-2703L
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5.Operation limits
Cooling operation
Outdoor 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.

6.Wiring diagram
6.1 MS2G-18CR
Indoor unit
Outdoor unit
8

6.2 DMA-2703L
Indoor unit
9

Outdoor unit
10

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7.Troubleshooting
Failure phenomenon Operation lamp Timer lamp Fan lamp
Over current protection of 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
rExtinguish
☆ Flash at 5Hz

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8 Electronic function
8.1 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.
8.1.7 Swing motor: DC12V.
8.1.8 Compressor: single-phase power supply. Its normal working amp is less than 15A
8.2 Proper symbols and their meanings:
TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
I3sec: Self-protection amp of compressor, continue three seconds until turns off the compressor.
I5MIN: Self-protection amp of compressor, continue five minutes until turns off the compressor.
IFAN: Self-protection amp of outdoor fan/indoor 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, from Setting Fan Speed to Breeze temperature
TE4: Anti-cold wind, from Breeze to Fan Off temperature
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
TE7: Evaporator high temperature protection, compressor off temperature
TE8: Evaporator high temperature protection, fan off temperature
TE9: Evaporator high temperature protection, restoring temperature
8.3 Systematic functions
Remote receiving
Testing and forced run
Position set for indoor unit wind vane
LED displaying and alarm
On or off Timer
Protection for the compressor
Current protection

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8.4 Protection
8.4.1 The compressor functions protection with a delay of three minutes.
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.
8.4.5 Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops and LED
displays failure information and can’t returns to normal operation automatically.
8.4.6 The current protection of the compressor
Condition Indoor fan Compressor Outdoor 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 stops and LED displays failure information and can’t returns to normal
operation automatically.
8.5 Fan-only mode
Fan speed is high/mid/low/ Auto
8.6 Cooling mode
The 4-way valve is closed at cooling mode.
The action of the compressor and the outdoor fan:
Condition Compressor Outdoor fan
T> Ts+1 On OnTemp. up T<Ts+1 Off Off
T> Ts On OnTemp. down T<Ts Off Off
Auto fan at cooling mode:
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<3℃Low
3℃<T<5℃Med.
Temp. up
T>5℃High
T> 3℃High
1℃<T<3℃Med.
Temp. down
T<1℃Low

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Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )
ConditionTemp. Time Compressor Outdoor fan
T> TE6 On OnTemp. up T< TE6 >5 Minutes Off Off
T> TE5 On OnTemp. down T< 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 Outdoor Fan
1 TA ≥TS+2 LOW
BREEZE
ON 6minutes
OFF 4minutes
2 TS ≤TA＜TS+2 LOW
BREEZE
ON 5minutes
OFF 5minutes
3 TA ＜TS LOW
BREEZE
ON 4minutes
OFF 6minutes
Repeat on and off cycle.
8.7.3 Low room temperature protection:
When room temperature decreases to below 10℃, compressor and outdoor fan will stop(indoor fan
is Breeze). Dehumidifying operation will be resumed when room temperature restores to over 13℃.
8.7.4 At dehumidifying mode, the anti-freezing function of the indoor 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 off. 4-way valve doesn't delay in dehumidifying mode.
8.8.2 Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except
for the defrosting mode or the 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 valid.
Condition Compressor Outdoor fan
T> Ts+3 Off OffRoom temp. up
T<Ts+3 On On
T< Ts+2 On OnRoom temp. down
T>Ts+2 Off Off
8.8.4 Indoor Fan actions at heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind
function prevails.

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Anti-cold wind control function at heating mode
Condition
T= Indoor exchanger temp.
Indoor fan speed
T<TE1 Off
TE1<T<TE2 Breeze
Indoor exchanger temp. up
T>TE2 Setting fan speed
T> TE3 Setting fan speed
TE3<T<TE4 Breeze
Indoor exchanger temp. down
T<TE4 Off
8.8.5 Auto wind at heating mode
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<2℃HighRoom temp. up
T>2℃Med.
T> 0℃Med.Room temp. down
T<0℃High
8.8.6 Indoor evaporator high-temperature protection at heating mode
Condition
T= Indoor exchanger temp.
Compressor Outdoor fan
T<TE8 On On
TE8<T<TE7 On Off
Indoor exchanger temp. up
T>TE7 Off Off
T>TE9 Off OffIndoor exchanger temp. down
T<TE9 On 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 ①&②:
①A 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 evaporator---room temp.
Fan speed is high ≤THDEFROST
Fan speed is mid ≤TMDEFROST
Fan speed is low ≤TLDEFROST
Breeze Meet only if it is Breeze
②Calculate 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
If the temp. difference condition ①is satisfied for less than 40 minutes, this can be regarded as
severe frosting. The defrosting time is 10 minutes.

If the temp. difference condition ②is satisfied for more than 40 minutes, the defrosting time is 6
minutes.
If the temp. difference condition ①is 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 IDEFROST or above, IDEROST differs in different models.
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8.9.4 Defrosting Actions:
Defrost 10or 6minutes
45S 25S
Compressor
4-way Valve 23S
40S
Outdoor Fan
Indoor Fan
10S
8.9.7 Turn into heating mode, turn off the heating mode in 7 minutes.
8.10 Automatic operation mode
8.10.1 The air conditioner automatically selects one of the following operation modes: cooling, heating or
fan only according to the temp. difference between room temp. (TA) and set temp. (TS).
TA—TS Operation mode
TA—TS>2℃Cooling
-1℃≤TA—TS≤+2℃Fan-only
TA—TS<-1℃Heating (air-only for cooling only type)
8.10.2 The indoor fan blows automatically in corresponding selected mode.
8.10.3 The motion of indoor fan’s blade should accord with the selected operation mode.
8.10.4 One mode should be carried 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 fan mode is
set as low, the A/C operates at the DRY mode with a set temp. of 24℃.
8.11.3 All protections of remote control cooling are available at forced cooling operation.
8.12 Forced Auto function
Select forced auto function with the forced auto button or the switch.
In forced auto status theA/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:
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The set temperature rise 1℃per hour. Two hours later, the set temperature will maintain as a
constant and the fan speed is kept at low speed.
8.14.3 Heating(only for heat pump model):
The set temperature decrease 1℃per hour. Two hours 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 power failure when power returns.

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8.16 Models and Parameters(Indoor unit)
Model
DMA-2703L
CSPEEDH 1100
CSPEEDM 1020
CSPEEDL 950
CSPEEDS 800
TE5 2℃
TE6 7℃

GD MideaRefrigeration EquipmentCo.,Ltd.
Have received certification for quality
assurance. ISO 9001
Certificate Nu mber. CC 454
GD MideaRefrigeration EquipmentCo.,Ltd.
have received environmentalmanagement system
standard certificationISO 14001
Certificate Nu mber. CC 1417
Please note that the data in this bookmay be changed without notice for further improvement on q uality and performance.
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