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Outdoor unit ML 353 DC AT

CN302 

CN303 

CN8 

CN10 

CN11 

CN301 

CN13 

CN12 

CN15 

C

N

40

C

N

40

CN9 

C

N

10

C

N

10

C

N

10

CE-KFR26W/BP3(PFC).D.13.WP2-1 

202302130906 

CN5 

CN4 

CN7 

CN6 

 

 

 

 

 

5

8

4

 

 

 

 

 

7

B C

A

 

 

   

 

 

 

 

2

3

1

 

 

6

 

 

 

Fig. 49: Electrical drawings

A: Connection to terminal block, power supply and

supply to the indoor unit (contact L (1))

B: Connection to terminal block, power supply and

supply to the indoor unit (contact N und 2(N))

C: Connection to terminal block, power supply and

supply to the indoor unit (contact S)

1: Heater 2 (optional)

2: Heater 1 (optional)

3: 4-way valve

4: Condenser fan

5: Probe heat gas

6: Probe outside air, probe condenser

7: Inductor

8: Compressor

 

 

 

 

 

41

Summary of Contents for ML 263 DC

Page 1: ...and operating instructions Read the instructions prior to performing any task REMKO ML DC ML 263 DC ML 353 DC ML 523 DC Inverter wall mounted room air conditioner with split design 0049 2015 07 Editio...

Page 2: ...g inal Read these operating instructions carefully before commis sioning using this device These instructions are an integral part of the system and must always be kept near or on the device Subject t...

Page 3: ...lified personnel 23 5 1 Important notes prior to installation 23 5 2 Wall openings 23 5 3 Installation materials 23 5 4 Selection of installation location 24 5 5 Minimum clearances 26 5 6 Oil return m...

Page 4: ...nd maintenance 53 13 Shutdown 55 14 Exploded view and spare parts lists 56 14 1 Exploded view Indoor unit 56 14 2 Spare parts list Indoor unit 57 14 3 Exploded view Outdoor unit 58 14 4 Spare parts li...

Page 5: ...ded may be fatal or cause serious injury WARNING This combination of symbol and signal word warns of a potentially hazardous situation which if not avoided may be fatal or cause serious injury CAUTION...

Page 6: ...walls or floors n Mobile units must be set up securely on suit able surfaces and in an upright position Sta tionary units must be permanently installed for operation n The units and components should...

Page 7: ...otection and recycling Disposal of packaging All products are packed for transport in environ mentally friendly materials Make a valuable contri bution to reducing waste and sustaining raw mate rials...

Page 8: ...A 3 10 3 90 8 20 Power consumption annual QHE 3 kWh 958 1179 1805 Energy efficiency ratio heating2 A A A Max power consumption kW 2 00 2 30 2 55 Max current consumption A 9 00 10 50 11 50 EDP no 1633...

Page 9: ...ipe Inche s mm 3 8 9 52 3 8 9 52 1 2 12 70 Dimensions H W D mm 540 780 250 540 780 250 590 760 285 Weight kg 29 50 29 50 35 0 From serial number 1306 1308 1310 EDP no 1633265 1633355 1633525 1 Air inl...

Page 10: ...3 DC AT 540 780 250 549 276 ML 523 DC AT 590 760 285 535 285 Indoor units A B C Fig 2 Indoor unit dimensions ML 263 DC IT 523 DC IT All measurements in mm Dimensions mm A B C ML 263 DC IT 353 DC IT 27...

Page 11: ...2 00 1 73 Power consumption in kW 0 69 0 68 1 14 1 08 1 01 1 01 0 95 COP 4 35 3 89 2 21 2 23 2 12 1 99 1 82 Cooling capacity ML 263 DC 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 21 25 30 35 40 45 5...

Page 12: ...in kW 0 95 0 93 1 56 1 47 1 38 1 38 1 30 COP 3 96 3 54 2 01 2 03 1 93 1 81 1 65 Cooling capacity ML 353 DC 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 21 25 30 35 40 45 50 2 1 3 A C Fig 6 Performance...

Page 13: ...wer consumption in kW 1 47 1 45 2 43 2 29 2 14 2 14 2 02 COP 3 94 3 52 2 00 2 01 1 92 1 80 1 64 Cooling capacity ML 523 DC 0 00 1 00 2 00 3 00 4 00 5 00 6 00 21 25 30 35 40 45 50 2 1 3 A C Fig 8 Perfo...

Page 14: ...infrared remote control The outdoor unit consists of a cooling cycle with compressor fin condenser condenser fan reversing valve and throttle element The outdoor unit is controlled by the controller...

Page 15: ...e inserted into the remote control in preparation To do so remove the flap from the battery compartment and insert the batteries the correct way around see mark ings Removing the batteries causes all...

Page 16: ...fan stage 4 SLEEP FRESH key SLEEP key Pressing this key will automatically increase or decrease the target temperature by 1 C within an hour in cooling and heating mode respectively Press this key to...

Page 17: ...ing horizontal key This key sets the position of the horizontal exhaust fins Each time the key is pressed the fins change position by 6 degrees In addition this key is used to stop and start the autom...

Page 18: ...ready controlled auto matically If Auto mode is not comfortable enough for you you can also select the desired mode manually Cooling Heating and Recirculation mode Make sure that the indoor unit is co...

Page 19: ...ON key The remote con trol shows TIMER ON the last Auto on time setting and the symbol H appears on the display The unit is now ready to reset the Auto on time and to start TIMER ON mode 2 Press the...

Page 20: ...unction settings TIMER ON Auto on mode The TIMER ON function is useful if you want the unit to switch on automatically before you come home The air conditioning unit will commence operation automatica...

Page 21: ...nd this function is acti vated On Set time Stop Start 2 hours later after setting 10 hours later after setting Fig 22 TIMER OFF TIMER ON example TIMER ON TIMER OFF Off Start Stop This function is usef...

Page 22: ...Heating and Auto modes Adjusting the airflow direction Use the SWING and DIRECT keys to achieve the desired airflow direction 1 Press the DIRECT key to determine the horizontal position of the exhaus...

Page 23: ...ing the oil return if the outdoor unit is located above the indoor unit see section Oil return measures n Add refrigerant if the basic length of the refrig erant piping exceeds 5 metres For the quanti...

Page 24: ...to build a small roofed area over the unit These measures should not affect the flow of warm outlet air Wind If the unit is being installed in windy areas ensure that the warm outlet air is discharged...

Page 25: ...2 1 K 3 W 3 Fig 28 Installation inside buildings K Cold fresh air W Warm air 1 Outdoor unit 2 Additional fan 3 Air shaft 25...

Page 26: ...air distribution 2 1 2 1 A B C D E E C A B F IT AT Fig 29 Minimum clearances of the indoor unit and outdoor unit AT Outdoor unit IT Indoor unit 1 Air inlet 2 Air outlet Indoor units Outdoor units Dime...

Page 27: ...measures A Outdoor unit B Indoor unit 1 One oil pump bend in suction pipe to outdoor unit every 2 5 metres of height difference 2 Radius 50mm 3 Max 10m 5 7 Connection variants for the indoor unit The...

Page 28: ...or unit is attached by means of a wall bracket taking into consideration the air outlet side located in the lower part 1 Mark the mounting points on the structurally permissible building sections acco...

Page 29: ...nst structural parts approved to support the static load refer to the installa tion instructions for the brackets 4 Ensure that structure borne sound is not transferred to parts of the building Use vi...

Page 30: ...ical lines and refrigerant piping The con nections of the individual circuits must not be mixed up Mixing up the assignment of control lines and refrigerant piping can have fatal con sequences compres...

Page 31: ...has been made successfully the leak test is carried out with dry nitrogen Leak testing involves spraying a leak detection spray onto the connections If bubbles are visible the connections have not be...

Page 32: ...those with a high greenhouse potential This device contains refrigerant with a greenhouse poten tial of 1975 That means the escape of 1 kg of this refrigerant has an effect on global warming that is...

Page 33: ...gainst frost The lower part of the housing and condensate tray is also to be kept frost free in order to ensure permanent draining of the condensate If necessary fit a pipe heater n Following installa...

Page 34: ...seated correctly and make permanent contact Tighten as required 8 2 Connecting the indoor unit n We recommend that a mains repair switch be installed near the outdoor unit n The terminal blocks for ma...

Page 35: ...on the electrical connection diagram 4 Fix the line in the strain relief and re assemble the unit Fig 42 Connecting the outdoor unit 8 4 Electrical wiring diagram Connection ML 263 DC 523 DC B A 230V...

Page 36: ...L N PE L 1 1 2 N S L 1 1 2 N S L N WH BK PE PE A B C 1 2 3 Fig 44 Electrical wiring diagram A Outdoor unit B Indoor unit C Condensate pump KP 6 KP 8 1 Power supply 2 Supply condensate pump 3 Fault co...

Page 37: ...ck power supply and supply to the indoor unit contact 1 B Connection to terminal block power supply and supply to the indoor unit contact L 1 C Connection to terminal block power supply and supply to...

Page 38: ...supply and supply to the indoor unit contact 1 B Connection to terminal block power supply and supply to the indoor unit contact L 1 C Connection to terminal block power supply and supply to the indoo...

Page 39: ...power supply and supply to the indoor unit contact 1 B Connection to terminal block power supply and supply to the indoor unit contact L 1 C Connection to terminal block power supply and supply to the...

Page 40: ...awings A Connection to terminal block indoor unit contact L 1 B Connection to terminal block supply contact S C Connection to terminal block supply and indoor unit contact N und 2 N 1 Probe heat gas p...

Page 41: ...ngs A Connection to terminal block power supply and supply to the indoor unit contact L 1 B Connection to terminal block power supply and supply to the indoor unit contact N und 2 N C Connection to te...

Page 42: ...onnection to terminal block power supply and supply to the indoor unit contact L 1 B Connection to terminal block power supply and supply to the indoor unit contact N und 2 N C Connection to terminal...

Page 43: ...for the indoor unit and outdoor unit when commissioning the entire system Once all the components have been connected and tested the system can be put into operation A functional check should be perfo...

Page 44: ...fan speed and lowest target temperature 8 Check the overheating outside inside outlet and vaporisation temperatures and record the measured values in the commissioning report Check the correct functio...

Page 45: ...erature ranges of indoor unit and outdoor unit Electrical surges caused by thunderstorms Have there been light ning strikes in the area recently Switch off the mains breaker and switch it back on Have...

Page 46: ...ice and fit the probe at the point where the most ice forms Condensate discharge on unit Drainage pipe on collec tion container clogged damaged Can the condensate drain off without any obstruction Cle...

Page 47: ...ed Check wiring contact specialist company F2 Condenser probe defective short circuited Check wiring contact specialist company F3 Heat gas line probe defective short circuited Check wiring contact sp...

Page 48: ...the S and N terminals of the outdoor unit Is 24 V present on these NO Has the wiring to the indoor unit been correctly implemented YES YES Has the wiring to the outdoor unit been cor rectly implemente...

Page 49: ...e the con nections Replace the fan motor Replace the bearing YES Check the resist ance of the motor Is this normal NO Replace the fan motor YES The indoor unit con trol board is defec tive Please repl...

Page 50: ...fill with new refrigerant NO Are the pipelines kinked or perhaps contami nated YES Replace the pipelines Fault P0 Inverter module fault Check the electrical wiring between the circuit board and the c...

Page 51: ...indoor unit and outdoor unit heat exchangers for cleanliness Is the air exchange guaranteed NO Clean the respective heat exchanger YES Switch the unit off for 10 minutes Check whether the unit starts...

Page 52: ...20 7 16 1 12 6 10 0 8 0 5 2 3 5 2 4 Resistance values for probe T5 Temperature C 5 15 25 35 60 70 80 90 100 Resistance value kW 141 6 88 56 1 36 6 13 8 9 7 6 9 5 0 3 7 Progression temperature resistan...

Page 53: ...mmended that you take out a mainte nance contract with an annual service from an appropriate specialist firm This enables you to ensure the operational reli ability of the plant at all times NOTICE St...

Page 54: ...rn the dirty side so it is facing upwards 5 Dirt can also be removed by carefully cleaning with lukewarm water and mild cleaning agents Fig 54 The dirty side should be face down 6 If water is used let...

Page 55: ...he electrical power supply to the unit 4 Cover the unit as far as possible with plastic foil in order to protect it from the influences of weather Permanent shutdown Ensure that units and components a...

Page 56: ...e parts lists 14 1 Exploded view Indoor unit Fig 55 Exploded view of the unit ML 263 DC IT 523 DC IT We reserve the right to modify the dimensions and design as part of the ongoing technical developme...

Page 57: ...DC IT ML 523 DC IT 1 Front panel complete On request by providing the serial number 2 Air filter set 3 Circuit board display 4 Swing motor 5 Air exhaust fins set 6 Condensate tray 7 Evaporator 8 Fan w...

Page 58: ...xploded view Outdoor unit Fig 56 Exploded view of the unit ML 263 DC AT 523 DC AT We reserve the right to modify the dimensions and design as part of the ongoing technical development process REMKO ML...

Page 59: ...number 2 Fan blade condenser 3 Fan motor condenser 4 Condenser 5 Cover panel 6 Side panel 7 Compressor cpl 8 Shut off valve suction pipe 9 Shut off valve liquid pipe 10 Reversing valve 11 E box cpl in...

Page 60: ...ials 23 Intended use 6 K Keys on the remote control 16 M Maintenance 53 Manual mode 15 Minimum clearances 26 O Oil return measures 27 Ordering spare parts 57 59 P Performance charts Cooling 11 12 13 H...

Page 61: ...61...

Page 62: ...REMKO ML DC 62...

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Page 64: ...t as advisers to our customers in air conditioning and heating technology SFlbCustomer Service Our equipment operates precisely and reliably However in the event of a fault REMKO customer service is q...

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