REMKO RXT 1053 DC Assembly And Operating Instructions Manual Download Page 18

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Wired remote control

Connection of the optional wired remote control

The plug for connection of a wired remote

control is located behind the panel at the dis-

play board (Fig. 14). The 5-core cable,

coming from the display panel, is marked

with the designations

"A-E"

(Fig. 15).

Fig. 14: Indoor unit panel

Fig. 15: Display circuit board

Alarms are indicated by a code (see chapter

Troubleshooting and customer service).

Help save on energy consumption in stand-by

mode! If the device, system or component is

not in use, we recommend disconnecting the

power supply. Components with a safety func-

tion is excluded from our recommendation!

4.2 Display on indoor unit

Display on indoor unit

The LED indicators illuminate to indicate the set-

tings:

MANUAL

TIMER

ALARM

OPERATION

DEF./FAN

Fig. 16: Display for setpoint/errors

1: Digital display

2: Manual operation

3: Operation display

4: Timer indicator

5: Unit for receiving signals from the remote con-

trol

6: Defrosting fan

7: Alarm indicator

REMKO RXT...DC

Summary of Contents for RXT 1053 DC

Page 1: ...operating instructions Read the instructions prior to performing any task REMKO RXT DC RXT 523 DC RXT 683 DC RXT 1053 DC RXT 1403 DC Inverter wall ceiling mounted unit with split design 0138 2016 06 Edition 1 en_GB ...

Page 2: ...ig 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 to modifications No liability accepted for errors or mis prints ...

Page 3: ...ral notes 17 4 2 Display on indoor unit 18 4 3 Keys on the remote control 19 5 Installation instructions for qualified personnel 25 5 1 Important notes prior to installation 25 5 2 Selection of installation location 25 5 3 Installation materials 26 5 4 Wall openings 27 5 5 Fastening options for the indoor unit 27 5 6 Minimum clearances 29 5 7 Connection variants 29 5 8 Oil return measures 29 6 Ins...

Page 4: ...oor unit RXT 523 683 DC 67 14 3 Exploded view Indoor unit RXT 1053 1403 DC 68 14 4 Spare parts list Indoor unit RXT 1053 1403 DC 69 14 5 Exploded view Outdoor unit RXT 523 DC 71 14 6 Spare parts list Outdoor unit RXT 523 DC 72 14 7 Exploded view Outdoor unit RXT 683 DC 73 14 8 Spare parts list Outdoor unit RXT 683 DC 74 14 9 Exploded view Outdoor unit RXT 1053 DC 75 14 10 Spare parts list Outdoor ...

Page 5: ...ided 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 This combination of symbol and signal word warns of a potentially hazardous situation which if not avoided may cause injury or mate rial and environmental damage NOTICE This combination of symbol an...

Page 6: ...s 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 not be oper ated in areas where there is a heightened risk of damage Observe the minimum clearances n The units and components must be kept at an adequate distance from flammable explosive combustib...

Page 7: ...rotection 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 Only dispose of packaging at approved collection points Disposal of equipment and components Only recyclable materials are used in the manufac ture of the devices and components Help protect the envi...

Page 8: ...ciency ratio heating 2 A A A A Rated power consumption electrical cooling 1 kW 1 63 2 29 4 06 5 19 Rated elec curr consump cooling 1 A 7 50 10 40 7 00 9 00 Rated power consumption electrical heating 2 kW 1 46 1 90 2 98 4 81 Rated elec curr consump heating 2 A 6 70 8 70 5 20 8 30 Max power consumption kW 2 51 3 16 4 69 6 59 Max current consumption A 11 50 14 10 8 10 11 40 EDP no 1619510 1619520 161...

Page 9: ...Air flow volume per level m h 700 800 900 850 1050 1180 1403 1767 2048 1400 1800 2100 Sound pressure level per speed setting 5 dB A 34 39 44 42 48 53 40 46 52 41 48 56 Sound power turbo mode dB A 65 65 67 72 Enclosure class IP X0 Condensate drainage connection mm 25 Dimensions H W D mm 675 1068 235 675 1650 235 Weight kg 26 0 25 0 40 0 38 0 EDP no 1619512 1619522 1619532 1619542 5 At distance of 1...

Page 10: ...additional quantity 5m g m 30 30 30 30 Refrigerant piping max length m 30 50 65 65 Refrigerant piping max height m 15 20 30 30 Refrigerant connection Liquid line Inches mm 1 4 6 35 3 8 9 52 3 8 9 52 3 8 9 52 Refrigerant connection Suction pipe Inches mm 1 2 12 70 5 8 15 90 5 8 15 90 5 8 15 90 Dimensions H W D mm 554 800 333 702 845 363 810 946 410 1333 952 410 Weight kg 35 5 49 0 78 9 108 1 EDP no...

Page 11: ... 540 350 RXT 1053 DC AT 946 810 410 673 403 RXT 1403 DC AT 1333 952 410 634 404 Indoor units B C A Fig 2 Unit dimensions indoor unit RXT 523 1403 DC IT Measurements mm A B C RXT 523 DC IT 675 1068 235 RXT 683 DC IT 675 1068 235 RXT 1053 DC IT 675 1650 235 RXT 1403 DC IT 675 1650 235 We reserve the right to modify the dimensions and design as part of the ongoing techn developm process 11 ...

Page 12: ...in kW 3 34 3 62 3 90 4 57 5 57 6 07 Power consumption in kW 1 17 1 24 1 31 1 39 1 46 1 50 COP 2 86 2 92 2 97 3 29 3 82 4 04 Cooling capacity RXT 523 DC 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5 00 5 50 6 00 6 50 20 25 30 35 40 2 1 3 A C Fig 4 Performance curves cooling RXT 523 DC data for room temperature FK 27 C TK 19 C A Outside temperature 1 EER 2 Cooling capacity in kW 3 Power consum...

Page 13: ... 92 5 76 7 03 7 66 Power consumption in kW 1 52 1 62 1 71 1 81 1 90 1 96 COP 2 78 2 83 2 88 3 19 3 70 3 92 Cooling capacity RXT 683 DC 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5 00 5 50 6 00 6 50 7 00 7 50 8 00 8 50 20 25 30 35 40 2 1 3 A C Fig 6 Performance curves cooling RXT 683 DC data for room temperature FK 27 C TK 19 C A Outside temperature 1 EER 2 Cooling capacity in kW 3 Power con...

Page 14: ...1 13 12 13 Power consumption in kW 2 39 2 54 2 69 2 84 2 99 3 07 COP 2 80 2 85 2 90 3 22 3 73 3 95 Cooling capacity RXT 1053 DC 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5 00 5 50 6 00 6 50 7 00 7 50 8 00 8 50 9 00 9 50 10 00 10 50 11 00 11 50 12 00 12 50 13 00 20 25 30 35 40 2 1 3 A C Fig 8 Performance curves cooling RXT 1053 DC data for room temperature FK 27 C TK 19 C A Outside temperat...

Page 15: ... 10 67 11 49 13 46 16 41 17 89 Power consumption in kW 3 85 4 09 4 33 4 57 4 81 4 95 COP 2 56 2 61 2 65 2 94 3 41 3 61 Cooling capacity RXT 1403 DC 0 00 0 50 1 00 1 50 2 00 2 50 3 00 3 50 4 00 4 50 5 00 5 50 6 00 6 50 7 00 7 50 8 00 8 50 9 00 9 50 10 00 10 50 11 00 11 50 12 00 12 50 13 00 13 50 14 00 14 50 15 00 15 50 16 00 16 50 17 00 20 25 30 35 40 2 1 3 A C Fig 10 Performance curves cooling RXT...

Page 16: ... designed both for both wall and ceiling mounted operation in indoor areas It is operated by an infrared remote control The indoor unit consists of a fin evaporator evaporator fan controller and condensate tray B A 4 3 5 6 1 2 3 7 8 9 Fig 11 System layout RXT 523 1403 DC A Outdoor area B Indoor area 1 Indoor unit 2 Outdoor unit 3 Condensate drainage line 4 Condenser fan 5 Power supply 6 Shut off v...

Page 17: ...ed remote control sends the programmed settings a distance of up to 6 m to the receiver of the indoor unit Data will only be received correctly if the remote control is pointed at the receiver and no objects are obstructing the transmission path Two AAA batteries must be inserted into the remote control in preparation To do so remove the flap from the battery compartment and insert the batteries t...

Page 18: ...r service Help save on energy consumption in stand by mode If the device system or component is not in use we recommend disconnecting the power supply Components with a safety func tion is excluded from our recommendation 4 2 Display on indoor unit Display on indoor unit The LED indicators illuminate to indicate the set tings MANUAL TIMER ALARM OPERATION DEF FAN 1 2 3 5 6 4 7 Fig 16 Display for se...

Page 19: ...unction makes it possible to reach the setpoint in cooling or heating mode as fast as possible 7 SELF CLEAN key no function 8 ARROW UP and ARROW DOWN keys ARROW UP key Press the key in order to increase the setpoint in 1 C steps to a maximum 30 C ARROW DOWN key Press the key in order to reduce the setpoint in 1 C steps to a minimum 17 C 9 SILENCE FP key no function 10 TIMER ON key Press this key t...

Page 20: ...is pressed Pressing this key again causes the indicator to go out 4 TIMER ON symbol This symbol appears when TIMER ON is switched on 5 ECO function not available 6 TIMER OFF symbol This symbol appears when TIMER OFF is switched on 7 Battery charge status weak 8 Sleep symbol This symbol appears when the Sleep function is activated Pressing this key again causes the indicator to go out 9 Temperature...

Page 21: ... the Arrow up down key to set the desired temperature The temperature can be set between 17 and 30 C in increments of 1 C 3 Press the ON OFF key to switch on the air conditioning unit 1 3 2 Fig 19 Auto mode Cooling Heating and Recirculation mode Make sure that the indoor unit is connected to the power supply and is switched on 1 Press the MODE key to select from oper ating modes Cooling Heating or...

Page 22: ... TIMER ON key to set the switch on time and the TIMER OFF key to set the switch off time for the unit Setting the switch on time 1 Press the TIMER ON key The remote con trol shows TIMER ON the last switch on time setting and the symbol H appear on the display The unit is now ready to reset the switch on time and to start TIMER ON mode 2 Press the TIMER ON key again to set the desired switch on tim...

Page 23: ...d to the following settings 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 8 5 9 0 9 5 10 11 12 13 14 15 16 17 18 19 20 21 22 23 and 24 Example TIMER function settings TIMER ON Auto on mode Example You want the air conditioning unit to switch on 2 hours from the time it was programmed 1 Press the TIMER ON key The last oper ating time setting for the timer and the H symbols appear ...

Page 24: ...ion is acti vated On Set time Stop Start 2 hours later after setting 10 hours later after setting Fig 25 TIMER OFF TIMER ON example TIMER ON ð TIMER OFF Off ð Start ð Stop Example You want the air conditioning unit to switch on in two hours from the time it was programmed and switch back off five hours later 1 Press the TIMER ON key 2 Press the TIMER ON key again until 2 0H is shown in the TIMER O...

Page 25: ...ngth of the refrig erant piping exceeds 5 metres For the quantity of additional refrigerant refer to chapter Adding refrigerant n Perform all electrical wiring in accordance with applicable DIN and VDE standards n Ensure the electrical cables are properly con nected to the terminals Otherwise there is a risk of fire n Use suitable fastening materials for the instal lation location of the units 5 2...

Page 26: ...side buildings n Ensure that heat can dissipate adequately when placing the outdoor unit in cellars lofts adjoining rooms or halls Fig 30 n Install an additional fan with a rated flow com parative to that of the outdoor unit being installed in the room and which can compen sate any additional pressure loss in ventilation ducts Fig 30 n Comply with any regulations and conditions affecting the stati...

Page 27: ...g account of fire protection regu lations provided by the customer Do not use cement or lime containing substances 2 1 5 3 4 Fig 31 Wall opening 1 Injection pipe 2 Control line 3 Condensate drainage line 4 Suction pipe 5 PVC pipe 5 5 Fastening options for the indoor unit If wall mounted the indoor units are mounted with fastening hooks and hanger bolts and if ceiling mounted then with fastening ho...

Page 28: ...1 1 1 1 Fig 33 Unit fastening 1 Unit mount 1 1 2 2 1 1 3 3 4 Fig 34 Unit fastening without housing 1 Unit mount 2 Hanger bolts or threaded rods 3 Side part 4 Air inlet grill REMKO RXT DC 28 ...

Page 29: ...allation B Ceiling installation 5 7 Connection variants The following connection variants can be used for the refrigerant condensate and control lines A 1 2 3 Fig 37 Connection variants A Refrigerant piping 1 Outlet on the wall right 2 Outlet through the wall right 3 Outlet on the wall down 5 8 Oil return measures If the outdoor unit is installed at a higher level than the indoor unit suitable oil...

Page 30: ...refrigerant piping electrical cables and condensate drainage line to the indoor unit as described below 5 Hang the indoor unit onto the wall bracket by tilting it back slightly and by pressing the bottom part of the unit against the bracket 6 Check again that the unit is level The wall bracket for the units must be attached with suitable screws and anchors Ceiling installation The unit is attached...

Page 31: ... 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 vibra tion dampers to reduce the effects of struc ture borne sound 5 Lay the refrigerant piping from the indoor unit to the outdoor unit Ensure that the fasten ings are adequate and if necessary take appropriate oil ...

Page 32: ...rical 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 compressor damage Commissioning of the individual circuits must be carried out successively 2 1 Fig 39 Deburring the refrigerant piping 1 Refrigerant piping 2 Deburrer 1 Fig 40 Flanging the refrigerant pipi...

Page 33: ...n 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 been made properly In that case tighten the connection or if necessary create a new flange After completing a successful leak test the excess pressure in the refrigerant piping is removed and a vacuum ...

Page 34: ...with a high greenhouse potential This device contains refrigerant with a greenhouse poten tial of 2088 That means the escape of 1 kg of this refrigerant has an effect on global warming that is 2088 times greater than 1 kg CO2 based on 100 years Do not conduct any work on the refrigerant circuit or dismantle the device always enlist the help of qualified experts 7 Condensate drainage connection and...

Page 35: ...protect it against 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 installation check that the conden sate run off is unobstructed and ensure that the line is durably leak tight min 2 Fig 45 Condensate drainage connection IT on the wall min 2 Fig 46 Condensate dr...

Page 36: ...nit The unit requires a six wired control line from the indoor unit to the outdoor unit n We recommend installing a main repair switch on the building close to the indoor unit This is the responsibility of the customer n Power is supplied to the outdoor unit the indoor unit is supplied via the control line from the outdoor unit to the indoor unit n The terminal blocks for establishing the con nect...

Page 37: ...onnection diagram 4 Fix the line in the strain relief and re assemble the unit Fig 48 Outdoor unit connection 8 4 Electrical wiring diagram Connection RXT 523 DC 230V 1 50 Hz L L A N PE L L1 N L2 S1 PE N A S A S 2 L B N B S B S 1 PE S2 PE PE X Y E A 2 B 3 1 2 Fig 49 Electrical wiring diagram A Outdoor unit RXT 523 DC AT B Indoor unit RXT 523 DC IT 1 Power supply 2 Communication lines 3 Optional co...

Page 38: ...1 L 2 N L N PE S1 S2 PE L L1 N L2 S1 PE S2 PE X Y E 2 3 1 2 Fig 50 Electrical wiring diagram A Outdoor unit RXT 683 DC AT B Indoor unit RXT 683 DC IT 1 Power supply 2 Communication lines 3 Optional connection MCC 1 controller REMKO RXT DC 38 ...

Page 39: ...L3 N S1 S2 PE 1 L 2 N PE PE L L1 N L2 S1 PE S2 PE X Y E A B 2 3 1 2 Fig 51 Electrical wiring diagram A Outdoor unit RXT 1053 1403 DC AT B Indoor unit RXT 1053 1403 DC IT 1 Power supply 2 Communication lines 3 Optional connection MCC 1 controller 39 ...

Page 40: ... L2 1 2 3 4 5 A B 9 8 7 6 10 12 11 13 14 15 16 1 17 Fig 52 Electrical drawings RXT 523 683 DC IT A Control board B Display circuit board 1 AC fan motor 2 Wired remote control connection not possible 3 DC fan motor 4 Potential free external contact on off 5 Potential free alarm contact 6 MCC 1 controller connection optional 7 Communication line to outdoor unit 8 Wave trap 9 Power supply coming from...

Page 41: ... 12 11 13 14 1 Fig 53 Electrical drawings RXT 1053 1403 DC IT A Control board B Display circuit board 1 DC fan motors 2 Potential free external contact on off 3 Potential free alarm contact 4 MCC 1 controller connection optional 5 Communication line to outdoor unit 6 Power supply coming from the outdoor unit 7 Transformer 8 Fin motors 9 Condensate pump connection optional 10 Wired remote control c...

Page 42: ...ctrical drawings main and inverter board RXT 523 DC AT A Control board B Auxiliary circuit board 1 Compressor 2 4 way reversing valve optional 3 Crankcase heating optional 4 Condensate tray heating optional 5 AC fan motor optional 6 Communication line to indoor unit 7 Supply line to indoor unit 8 Power supply 9 Temperature probe for heat gas line 10 Temperature probe for condenser outlet 11 Air in...

Page 43: ...1 13 1 10 14 15 16 Fig 55 Electrical drawings main and inverter board RXT 683 DC AT A Control board B Inverter board 1 Klixon optional 2 Low pressure alarm optional 3 High pressure switch optional 4 Air inlet temperature probe 5 Temperature probe for condenser outlet 6 Temperature probe for heat gas line 7 Electronic injection valve 8 Transformer 9 Compressor 10 DC fan motor 11 Supply line to indo...

Page 44: ... gelb blau blau rot orange orange orange orange schwarz schwarz 2 3 4 5 A B 9 8 7 6 12 11 13 1 10 14 15 16 C 1 1 1 2 2 17 Fig 56 Electrical drawings main and inverter board RXT 1053 DC AT A Control board B Inverter board C Control board DC fan motor optional 1 Transformer 2 Magnetic ring 3 Compressor 4 DC fan motor optional 5 AC fan motor optional 6 Crankcase heating optional 7 Condensate tray hea...

Page 45: ...iss schwarz rot grün gelb grün gelb grün gelb grün gelb grün gelb grün gelb grün gelb grau gelb schwarz rot weiss grün schwarz schwarz grün weiss rot blau braun 3 4 5 A B 9 8 7 6 12 11 13 1 10 14 15 16 C 1 2 17 14 13 18 9 9 9 9 Fig 57 Electrical drawings main and inverter board RXT 1403 DC AT A Control board B Power pcb C Control board DC fan motor optional 1 DC fan motor optional 2 Heating temper...

Page 46: ...e 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 performed to verify its correct function and identify any unusual operating behaviour prior to handing it over to the operator NOTICE Check that the shut off valves and valve caps are tight after carrying out an...

Page 47: ...umidification mode 9 Check the correct function of the condensate drainage line by pouring distilled water into the condensate tray A bottle with a spout is recommended for pouring the water into the condensate tray 10 Switch the indoor unit to heating mode 11 During the test run check the functionality of all of the previously described safety devices 12 Record the measured values into the com mi...

Page 48: ...ature 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 it inspected by a specialist Malfunction of the external condensate pump Has the pump shut down due to a malfunction Check and if necessary clean the pump High pressure low pres sure switches have trig...

Page 49: ...inage pipe and collection container Faulty external conden sate pump or float Is the collection tray full of water and the pump not running Call out a specialist to replace the pump Condensate has not drained away and has collected in the conden sate drainage line Is there an incline on the condensate drainage line Check there is no blockage in the pipe Route the condensate drainage line with an i...

Page 50: ... 8 OFF EE Safety shut down due to increased power consumption 1 ON F0 Outdoor unit air inlet temperature probe faulty 2 ON F1 Condenser outlet temperature probe faulty 3 ON F2 Temperature probe for heat gas line faulty 4 ON F3 EEPROM error outdoor unit 5 ON F4 Condenser fan speed control not OK 6 ON F5 Suction pipe temperature probe in AT faulty 7 ON F6 Inverter error 1 FLASHES P0 Over undervoltag...

Page 51: ...alysis Error code E0 F4 Reason The control board of the outdoor unit or indoor unit cannot read the unit memory EEPROM Cause n Installation error n Control boards of outdoor unit or indoor unit defective Switch off voltage switch on again 2 minutes later Is the error still present YES Replace the circuit boards of the outdoor unit and indoor unit in turn in order to locate the defective EEPROM 51 ...

Page 52: ...tween the S and N terminals of the outdoor unit Is the measured value positive NO Check electrical connections in the indoor unit Are they OK YES YES Check electrical connections in the outdoor unit Are they OK Replace the control boards of the indoor unit Is the fault remedied YES NO Is the transformer OK Replace the control boards of the outdoor unit NO Replace the transformer YES Replace the co...

Page 53: ...e unit operates normally YES De energise the unit and attempt to turn the fan wheel by hand Does it rotate freely NO Check the motor and the fan wheel bearing and replace the defective parts YES Check the electrical connections Are these correctly implemented NO Correctly establish the electrical connection YES Measure the voltage at the corre sponding connector plug on the con trol board see sect...

Page 54: ...ffer there is a problem with the control board and it must be replaced 1 3 4 5 6 Fig 58 Motor measurements Terminal Colour Voltage 1 Red 280V 380V 2 3 Black 0V 4 White 17 17 5V 5 Yellow 0 5 6V 6 Blue 17 17 5V DC fan motor of the outdoor unit control chip is installed in the motor Measure the resistance between terminals 1 3 and 4 3 This should be roughly identical If the resistance deviates signif...

Page 55: ...t low or cooling circuit blocked n Evaporator probe T2 defective n Indoor unit control board defective Switch off voltage switch on again 2 minutes later Is the error still present YES Check whether the indoor unit blows out cold air YES Check the position and function of the evapo rator probe T2 Is it correctly seated and with the correct resistance NO YES Check the cooling circuit for leaks Leak...

Page 56: ...l connection faulty n Temperature probe defective Check the connecting cable between the con trol board and the temperature probe Is it OK and correctly connected NO Establish a proper connection YES Check the probe for correct resistance depending on the temperature see resistance table NO Replace the probe YES Replace the corresponding control board Fig 59 Check the probes REMKO RXT DC 56 ...

Page 57: ... and ensure correct supply voltage YES Check the cooling circuit for any blockages Is the cooling circuit OK NO Remove the blockage shut off valve open YES Check the winding resistances of the com pressor Are they OK NO Replace the compressor YES Check the electrical connections Are these cor rectly implemented NO Replace or correct the electrical connections YES Does the transformer operate fault...

Page 58: ... Ä Check the inverter controller on page 58 Fault eliminated NO Replace the control board YES Check the condenser fan motor Is it working correctly NO See troubleshooting fault F5 YES Check the winding resistances of the com pressor Are they OK NO Replace the compressor YES Exchange the control boards of the outdoor unit Check the inverter controller Switch off the power supply to the unit Wait un...

Page 59: ...ed YES Check the electrical connections Are they OK NO Replace the electrical connections YES Switch the power on and put the unit into standby mode Measure the voltage on the board at contacts P and N This should be approx 310V 340V or 380V DC Now start the unit The voltage between P and N should now be between 220 400V Is the correct voltage applied NO Replace the control board YES Check the tra...

Page 60: ...ocked or dirty YES Clean the filter or heat exchanger and ensure a sufficient air flow volume NO Switch off the power supply to the unit and switch it on again after 10 mins Does the unit start up YES Check the tempera ture of the com pressor Has it heated up NO Check the thermal contact Is it correctly connected YES NO Measure the resistance of the thermal contact Is it 0 Connect it correctly YES...

Page 61: ...mpressor Are these cor rectly implemented YES Establish a proper connection NO Check the inverter controller Is this functional NO Replace the control board YES Check the condenser fan motor Is it OK NO Follow the instructions for troubleshooting fault F5 YES Check the winding resistances of the com pressor Are they OK NO Replace the compressor YES Replace the control boards of the outdoor unit Ch...

Page 62: ...Resistance values for probes T1 T2 T3 and T4 K Ohm K Ohm K Ohm K Ohm REMKO RXT DC 62 ...

Page 63: ...Resistance values for probe T5 K Ohm K Ohm K Ohm K Ohm 63 ...

Page 64: ...the maintenance intervals must be reduced accordingly NOTICE Statutory regulations require an annual leak test for the cooling cycle dependant on the refrigerant quantity Inspection and documenta tion of the work performed is to be carried out by specialist technicians Type of task Checks maintenance inspection Commis sioning Monthly Half yearly Yearly General l l Check voltage and current l l Che...

Page 65: ...water is used let the filter dry out properly in the air before fitting it back into the unit 7 Carefully insert the filter Ensure that it locates correctly 8 Close the front side as described above in reverse order 9 Switch the power supply back on 10 Switch the unit back on Cleaning the condensate pump accessories The indoor unit may contain an optional integrated or separate condensate pump whi...

Page 66: ...RXT 523 683 DC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 30 25 26 27 28 29 Fig 64 Exploded view of the unit RXT 523 683 DC IT We reserve the right to modify the dimensions and design as part of the ongoing technical development process REMKO RXT DC 66 ...

Page 67: ...ing left 6 Wall bracket left 7 Fan wheel 8 Fastening protection 9 Display board 10 Air filter 11 Air outlet fins 12 Housing 13 Wall bracket right 14 Fan motor 15 Fin motor 16 Fin motor vertical 17 Condensate tray 18 Infrared remote control 19 Inverter module 20 Temperature probe indoor air 21 Transformer 22 Control board 23 E box cover 24 Side covering right 25 Air outlet fin vertical 26 Fan casin...

Page 68: ...6 7 8 9 10 11 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 33 32 Fig 65 Exploded view of the unit RXT 1053 1403 DC IT We reserve the right to modify the dimensions and design as part of the ongoing technical development process REMKO RXT DC 68 ...

Page 69: ...ator 6 Side covering left 7 Wall bracket left 8 Fan wheel 9 Fastening protection 10 Display board 11 Air filter large 12 Air filter small 13 Air outlet fins 14 Housing 15 Wall bracket right 16 Fan motor 17 Fin motor vertical 18 Condensate tray 19 Infrared remote control 20 Inverter module 21 Temperature probe indoor air 22 Transformer 23 Control board 24 E box cover 25 Side covering right 26 Air o...

Page 70: ...No Designation 31 Cooling fin 32 Fin motor 33 Refrigerant connections cover REMKO RXT DC 70 ...

Page 71: ...RXT 523 DC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Fig 66 Exploded view of the unit RXT 523 DC AT We reserve the right to modify the dimensions and design as part of the ongoing technical development process 71 ...

Page 72: ...or mounting plate 7 Corner panel left 8 Condenser 9 Air inlet temperature probe 10 Electronic injection valve 11 Shut off valve injection pipe 12 4 way reversing valve 13 Shut off valve suction pipe 14 Partitioning panel 15 Temperature probe for heat gas line 16 Compressor 17 Floor panel 18 Side panel right 19 Refrigerant connections cover 20 Control board 21 Auxiliary circuit board 22 Temperature...

Page 73: ...3 DC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Fig 67 Exploded view of the unit RXT 683 DC AT We reserve the right to modify the dimensions and design as part of the ongoing technical development process 73 ...

Page 74: ...er 9 Air inlet temperature probe 10 Electronic injection valve 11 Shut off valve injection pipe 12 4 way reversing valve 13 Shut off valve suction pipe 14 Partitioning panel 15 Temperature probe for heat gas line 16 Compressor 17 Floor panel 18 Side section right 19 Refrigerant connections cover 20 Terminal block cover 21 Control board 22 Inverter board 23 Cooling fins 24 Temperature probe for con...

Page 75: ...2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Fig 68 Exploded view of the unit RXT 1053 DC AT We reserve the right to modify the dimensions and design as part of the ongoing technical development process 75 ...

Page 76: ...ture probe for condenser outlet 10 Temperature probe for condenser outlet 11 Temperature probe for heat gas line 12 Air inlet temperature probe 13 4 way reversing valve 14 Shut off valve suction pipe 15 Inverter board 16 Control board 17 Liquid separator 18 Transformer 19 Side panel right 20 Terminal block cover 21 Shut off valve cover 22 Recessed grip front panel right 23 Front panel right 24 Low...

Page 77: ...No Designation 31 Shut off valve mounting plate 32 Condensate tray heating 33 Crankcase heating 77 ...

Page 78: ...5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 Fig 69 Exploded view of the unit RXT 1403 DC AT We reserve the right to modify the dimensions and design as part of the ongoing technical development process REMKO RXT DC 78 ...

Page 79: ...9 4 way reversing valve 10 Shut off valve suction pipe 11 Partitioning panel 12 Shut off valve injection pipe 13 Air inlet temperature probe 14 Temperature probe for condenser outlet 15 Compressor 16 Control board 17 Floor panel 18 Shut off valve mounting plate 19 Temperature probe for heat gas line 20 Auxiliary circuit board 21 High pressure switch 22 Inverter board 23 Transformer 24 Transformer ...

Page 80: ...No Designation 31 Crankcase heating 32 Terminal block cover 33 Side panel right REMKO RXT DC 80 ...

Page 81: ...ted by flashing code 50 Malfunctions Checks 48 Possible causes 48 Remedial measures 48 Manual mode 17 Minimum clearances 29 O Oil return measures 29 Ordering spare parts 67 69 72 74 76 79 P Performance charts Cooling 12 13 14 15 Heating 12 13 14 15 Propellant in accordance with Kyoto Protocol 8 R Remote control Keys 19 S Safe drainage in the event of leakages 35 Safety Dangers of failure to observ...

Page 82: ...REMKO RXT DC 82 ...

Page 83: ......

Page 84: ...ct 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 quickly at the scene Our comprehensive network of experienced dealers always guarantees quick and reliable service REMKO INTERNATIONAL and also right in your neighbourhood Make use of our experience a...

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