Assembly and operating instructions
Contents
1. Fig 1 Dimensions MXD 202 522 All measurements in mm 1 Adjoining room connection 4 Condensate drain 2 Fresh air connection 5 Refrigerant connection 3 Implementation of electrical control line We reserve the right to modify the dimensions and design as part of the ongoing technical development process 3 Design and function 3 1 Equipment description The indoor unit serves to extract heat from the indoor room being cooled The outdoor unit then expels this heat to the outside If combined heating cooling units are operated as heaters the heat absorbed by the outdoor unit can be discharged by the indoor unit into the room being heated The unit series has priority heating this means that units that are in heating or automatic mode other units in the system that are in cooling mode can switch off The unit is designed for installation high up on indoor walls Operation takes place using an infrared remote control The indoor unit consists of a fin vaporiser vapor iser fan controller and condensation pan The indoor unit can be combined with REMKO out door units of series MVT 601DC 901DC und 1051DC with sufficient combinations The outdoor component is controlled via the controller of the indoor unit Cabled remote control and condensation pump are available as an accessory Fig 2 System layout In this example MVT 901 DC with 2 MXD 352 7 ab 8 a b 9 a b2. 24 Remote control dA 13 S Safety Dangers of failure to observe the safety joi 4 ap ee 4 Identification of notes 4 Notes for 5 Notes for 5 Notes for 5 Personnel qualifications 4 Safety conscious 4 Safety notes for the operator 5 Unauthorised modification 5 Unauthorised replacement part manufacture 5 Selection of installation location 22 Shut down gel EE 35 Pen ee E E EA 35 Spare parts 42 T Troubleshooting and customer service 36 U Unit installation unne venen 23 W Eege 5 43 MXD MXD REMKO INTERNATIONAL and also right in your neighbourhood Make use of our experience and advice Consulting Thanks to intensive training our consultants are always completely up to date in terms of technical knowledge This has given us the reputation of being more than just an excellent reliable supplier REMKO a partner helping you find solutions to your
3. 8 Close the cover as described above but in reverse order 9 Switch the supply voltage back on 10 Switch the unit on again Cleaning the condensation pump The indoor unit includes a built in condensation pump for pumping the condensation to a drain at a higher level The pump is more or less maintenance free The condensation pipes should be checked for dirt at regular intervals Clean them as required If an external pump is also used observe the maintenance and care instructions given in the separate operating manual Fig 45 Pull out the filter 40 Fig 46 Cleaning using a vacuum cleaner Fig 47 Cleaning with lukewarm water am 13 Exploded view of the unit and spare parts list 13 1 Exploded view Fig 48 Exploded view MXD 202 522 We reserve the right to modify the dimensions and structural design as part of the ongoing technical devel opment process 41 REMKO MXD 13 2 Spare parts list OD C A W bh zx pex NENG Dx N gt a 14 Condensation tray Vaporiser Fan wheel Vaporiser fan motor Control board Condensation pump cpl Condensation float switch Display board Cover opl Air filter Fin motor Outlet fins set of 4 Set of temperature probe IR remote control 1111053 1111076 1111056 1112500 1112501 1111062 1112502 1111064 1112503 1112504 1
4. 3 Dehumidification mode In this mode the room is dehumidified thereby the room temperature significantly lowered Influencing temperature and fan speed in this mode not pos sible 4 Heating mode In this mode the warm air in the room is warmed to the desired temperature D Air circulation mode In this mode the air in the room is circulated with no change in temperature 5 Key Press this key to set the desired fan speed 4 speeds are available Automatic high medium and low fan speed 6 Key LED FOLLOW Short press this button enables disables the LED display on the indoor unit With pressing this key longer then 2 sec the sensing of the room temperature is moved from the interior unit to the remote control The temperature measured on the remote control is then transmitted to the interior unit in certain intervals 7 Key SLEEP Pressing this key will automatically increase the target temperature by 1 C every hour in cooling mode and decrease the target temperature by 1 every hour in heating mode Key SWING This key directly activates the oscillating function of the fins for better air distribution in the room 9 Key DIRECT The position of the exhaust fins is determined with this button The fins change by pressing of the they position by 6 14 Key TIMER ON This button initiates the automatic switch on
5. Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution Fig 25 Minimum clearances MXD 262 522 all measurements in mm 6 Installation NOTICE Installation should only be performed by authorised specialists Unit installation The unit is mounted on four threaded rods with the cover face down Take into account the ceiling grid and any other installations 1 Use the dimensions of the ceiling cassette to mark the fixing points for the threaded rods on structural parts approved to support the static load and above the suspended ceiling Fig 26 Fit the indoor unit onto the threaded rods and use the lower nuts to level the unit Fig 27 Ensure clearance of 35 mm from the ceiling Connect the refrigerant pipes elec trical cables and condensation pipe to the indoor unit as described below Check that the unit is level LE The final task is to tighten the counternuts and attach the cover Fig 26 Unit attachment MXD 202 522 Fig 27 Hooking in the unit MXD 202 522 1 Structural component A Minimum 35 mm B 265 mm Fig 28 Fasten the unit A Distance A Distance A 70 mm Suspension 545 mm x 525 mm 23 uc MXD Connecting the refrigerant lines Bby customer on site connecting the refrigerant lines are at a corner of the unit within the false ceiling It may be necessary to fit a r
6. by foreign objects Are all other electrical installations functioning correctly Are all other electrical installations functioning correctly Have approx 5 minutes elapsed since the restart Are the fans in the indoor unit and outdoor compo nent working correctly Have there been light ning strikes in the area recently Did the pump shut down due to a fault Does the indoor unit beep when pressing a button Is the unit running in manual mode Does it function correctly in the shade Does it function when switching off possible sources of interference Does the Send symbol appear on the display Have new batteries been inserted 15 the display incomplete Have the filters been cleaned Check voltage if neces sary wait until turned on again Repair by a specialist Schedule longer waiting periods Take into account the temperature range for the indoor unit and out door component Switch off the mains breaker and switch it back on Have it checked by a specialist Check and if necessary clean the pump Reduce the distance to less than 6 m or change position Replace the remote con trol Place the receiver amp transmitter unit in the shade Signal is not transmitted when interference sources are operational Release the button press only one button Insert new batteries Clean the filters m Condensation discharge on unit Windows and doors op
7. list of certified firms near you uc 35 MXD 11 Troubleshooting and customer service The equipment and components are manufactured using state of the art production methods and tested sev eral times to verify their correct function If malfunctions should occur please check the functions as detailed in the list below For installations with an indoor unit and outdoor unit refer to the chapter Troubleshooting and customer service in both manuals Please inform your dealer if the unit is still not working correctly after all the functional checks have been performed Malfunctions The unit does not start or switches it self off The unit does not respond to the remote control The unit is running with reduced or without cooling heating output 36 Power outage under voltage defective mains fuse main switch in off position Damaged mains cable Wait time after switching on is too short Temperature outside operating range Electrical surges caused by thunderstorms Fault in external conden sation pump Transmission distance too far receiver affected by interference Defective remote control Receiver or transmitter unit exposed to exces sive solar radiation Electromagnetic fields are interfering with trans mission Button in remote control jammed two buttons pressed at same time Batteries in remote con trol are flat Filter is unclean air inlet outlet blocked
8. m 60 uo RC kPa units for cooling and heating 2 64 3 51 5 27 3 22 3 81 6 00 80 110 160 17 to 30 17 to 32 R 410A 7 4200 1500 m h 380 445 580 380 445 580 500 570 720 635 690 800 dB A 40 44 48 dB A 52 V Hz IP W 15 W 15 A 0 06 A 0 06 Inch mm 1 4 6 35 Inch mm 3 8 9 52 mm 25 mm WS 40 44 48 40 43 48 40 43 46 5 54 54 230 1 50 KO 15 20 102 15 20 102 0 06 0 08 0 44 0 06 0 08 0 44 1 4 6 35 1 4 6 35 1 4 6 35 3 8 9 52 3 8 9 52 1 2 12 70 25 25 25 500 REMKO MXD Dimensions ceiling cassette Length mm 570 570 570 570 Width mm 570 570 570 570 Depth mm 260 260 260 260 Dimensions cover Length mm 647 647 647 647 Width mm 647 647 647 647 Depth mm 50 50 50 50 Weight kg 15 0 16 0 17 0 18 0 Weight cover kg 2 5 25 25 25 Serial number 1324 1325 1326 1927 Computerised part no 1623252 1623257 1623262 1623267 1 Air intake temp TK 27 19 C outdoor temp TK 35 C 24 C max air volume 5m pipe length 2 Air intake temperature TK 20 outdoor temperature TK 7 C FK 6 C max air volume 5m pipe length 3 Distance 1 m free field 4 Contains greenhouse gas according to Kyoto protocol For details of the energy efficiency see operating instructions corresponding external unit 2 2 Unit dimensions
9. 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 ay b Disposal of equipment and components Only recyclable materials are used in the manufac ture of the devices and components Help protect the environment by ensuring that the devices or components for example batteries are not dis posed in household waste but only in accordance with local regulations and in an environmentally safe manner e g using certified firms and recy cling specialists or at collection points 2 Technical data 2 1 Technical data T Ed Ceiling cassette for inverter multi split designed outdoor Operating mode Nominal cooling output Nominal heating output 2 Operating range room volume approx Room temperature adjustment range Operating range Refrigerant Operating pressure max per cooling circuit Air flow volume per speed setting Sound press level per speed setting Sound power Turbo mode Power supply Protection class Nom electrical power consumption cooling 1 Nom electrical power consumption heating Nom electrical current consumption cooling Nom electrical power consumption heating 2 Refrigerant connection injection line Coolant connection suction line Condensate drain Condensate pump max pumping capacity kW 2 05 kW 2 34
10. resistance on sensor Check electrical connec tion leads Check EEPROM Contact specialist dealer Check resistance and temperature on sensor Check power supply Allow to cool compressor Priority heating program all unitss on cooling mode de energize Check power consump tion For further fault diagnosis and troubleshooting s corresponding user manual outer part 38 12 maintenance Regular care and observation of some basic points will ensure trouble free operation and a long service life A DANGER Prior to performing any work ensure the equip ment is disconnected from the voltage supply and secured to prevent accidental switch on Care Ensure the unit is protected against dirt mould and other deposits Clean the unit using a damp cloth Do not use any caustic abrasive or solvent based cleaning products Do not use a jet of water Clean the fins on the unit prior to long shut down periods General Check voltage and current Check function of compressor fans Dirt on condenser evaporator Check refrigerant fill quantity Check condensate drainage Check insulation Check moving parts Sealing test for cooling cycle 1 See note NOTICE m X Maintenance We recommend a maintenance contract with annual maintenance interval with an appro priate specialist company O 1 This enables you to ensure the operational reli ability of the plant
11. settings ml X Remote control display Remote control on off The remote control s on off function is shown at the 1 2 3 4 5 lower right of the remote control by a circular symbol auto cool dry heat fan CORT xt A SETTEMP TIMER ONOFF sleep follow lock Fig 7 Remote control display Automatic mode Cooling mode Dehumidifying mode Heating mode Air circulation mode Indicator signal transmission Display for temperature timer Timer activated deactivated Display of fan speed 10 Sleep mode aktivated 11 Follow Me function aktivated 12 Remote control locked 13 Display on off io P pue Fig 9 Remote control on off Key functions A symbol is shown on the display to indicate that the settings are being transferred Fig 8 Key functions 15 REMKO MXD A and Q keys MODE key Using the key the target temperature can be Use the MODE key to select between individual adjusted up or down by 1 C The temperature operating modes range lies between 17 C and 30 C A total of 5 modes are available 1 Automatic 2 Cooling 3 Dehumidifying 4 Heating 5 Air circulation Fig 10 and Fig 11 Mode key 16 Automatic mode In automatic mode the controller autonomously selects between heating circulation or cooling mode based on the room temperature Tr and the selected target val
12. the measurement of the room temperature from the indoor unit to the remote control Measuring the temperature at the remote control is then transmitted at intervals to the indoor unit LED FOLLOW ME SETTEMP Fig 17 Follow Me function m SLEEP key A programming function is activated using this key which increases the target temperature in cooling mode by 1 after one hour and by 2 after 2 hours In heating mode the target temperature is decreased by 1 after one hour by 2 after 2 hours The unit switches off automatically after 8 hours Fig 18 Sleep key 19 REMKO MXD TIMER ON key TIMER OFF key This key allows the unit is switched off in an This key allows the unit is switched on in an adjustable interval of 30 minutes 0 5 h to switch adjustable interval of 30 minutes 0 5 h to switch on the unit off the unit Fig 19 TIMER ON key Fig 20 TIMER OFF key 20 am X T URBO FP key RESET key The maximum fan speed and the compressor is With this recessed key the remote control can be activated by pressing the TURBO FP key reset SELF CLEAN mum 2 3 T Fig 21 TURBO FP Fig 23 RESET key LOCK key Cable remote control The functions of the remote control can be disa Connection of an optional cable remote control bled with this recessed key This can prevent acc
13. the point where the most ice forms Clean the drainage pipe and collection container Call out a specialist to replace the pump Ensure there is a fall when laying the conden sation pipe and clean the pipe The condensation line must have a fall If nec essary clean the pipe A faulty condensation pump and float switch should be replaced Should be cleaned by specialist firm 37 1 REMKO MXD Fault indication by flashing code on on flashes flashes flashes flashes flashes flashes flashes flashes on on on on flashes flashes flashes on flashes on on on on on on flashes flashes E7 EO E4 5 Normal operation no faults heating mode Normal operation no faults cooling recircu lating air or automatic mode Normal operation no faults On timer pro grammed Normal operation no faults Off timer pro grammed Probe recirculating air defective actuated Probe vaporizer defec tive actuated Communication error between PCBs OU amp IU EEPROM error Shutdown inverter module Liquid level switch con densate pump defective actuated Probe outdoor tempera ture OU actuated Surge voltage on outdoor unit Overtemperature com pressor Mode conflict Set unit with fault display on refrigerators and other appliances to heating mode Power consumption on OU too high Check resistance on sensor Check
14. time for the unit Each time the key is pressed the auto matic time setting increases in increments of 30 minutes Once the time setting shows 10 0 the automatic time setting increases in increments of 60 minutes each time the key is pressed In order to cancel the automatic time setting simply set the automatic switch on time to 0 0 17 Key TIMER OFF This button initiates the automatic switch off time for the unit Each time the key is pressed the auto matic time setting increases in increments of 30 minutes Once the time setting shows 10 0 the automatic time setting increases in increments of 60 minutes each time the key is pressed In order to cancel the automatic time setting simply set the automatic switch off time to 0 0 2 Key TURBO The TURBO key allows the preset temperature to be reached in the shortest possible time Pressing this key in Cooling mode causes the unit to blow a blast of cooling air into the room at a very high fan speed 3 Key SHORTCUT By first press on this button the setpoint to 24 C and the fan speed is set to automatic When the button is pressed while the remote control during the operation the unit resets to the last setting operating mode Key LOCK This key can be used to lock the keys on the remote control Press again this key and the remote control can be used again 5 Key RESET Press the RESET key to reset all settings to fac tory
15. 0 CN14 SWING CN10 etl 9 ON ON ON E E E E 8 E i I I NEWFAN L COCOS 1 2 2 1 2 1252 1 Wr NEWFAN N Fig 43 Electrical circuit diagram A Power supply control board 7 External start stop contact 1 Swing motor 8 DIP switch 2 Connectivity cable remote control 9 Alarm contact optional 3 MCC bus 10 External start stop contact optional 4 Connection display board 11 Evaporator fan motor 5 Liquide level switch condensate 12 Connection condensate pump 6 Probe suction pipe probe room temperature 32 MXD 522 4 5 6 CN14 SWING CN10 p CNS VATER Fig 44 Electrical circuit diagram Power supply control board owing motor Connectivity cable remote control MCC bus Connection display board Liquide level switch condensate EEN ore 2 Sess Probe suction pipe probe room temperature 10 12 CE KFR20Q4 BP3TN1 Y hb A D 11 NP2 1 202302141057 P5 NEWFAN N CNA H ML External start stop contact DIP switch Alarm contact optional External start stop contact option
16. 111068 1112505 1112506 1112507 1111053 1111077 1111056 1112500 1112501 1111062 1112502 1111064 1112503 1112504 1111068 1112505 1112506 1112507 1111053 1111078 1111056 1112500 1112508 1111062 1112502 1111064 1112503 1112504 1111068 1112505 1112506 1112507 1111053 1112509 1111056 1112510 1112511 1111062 1112502 1111064 1112503 1112504 1111068 1112505 1112506 1112507 When ordering spare parts please state the computerised part no device number and device type see identification plate 42 14 Index A Adjacent room and fresh air Conpnechon 24 Adjacent room connection 24 25 C Cable remote control 21 Care and 39 Choice of temperature aaneen een 31 Choice of unt 31 Cleaning Air filter for indoor unit 40 Condensation pump 40 Cover of the indoor 39 COMMIT AON E 10 Condensate draining 27 Connecting the refrigerant mes 24 Customer service 36 D DIP SCI tanden 31 Display on the indoor unit 13 Disposal of 6 E Electrical circ
17. Outdoor area Indoor area Indoor units Outdoor unit Condensate drain Condenser fan Power output Shut off valve Suction pipe Injection pipe Control line Refrigerant pipes are used to connect the indoor unit to the outdoor unit Fig 3 Schematic of refrigerant circuit 1 Evaporator 2 Evaporator fan 3 Connection suction pipe 4 Connection injection pipe REMKO MXD 3 2 Combinations Indoor units The indoor units MXD 202 522 can be combined with MVT 601DC 901DC und 1051DC series out door units The following combinations are pos sible Outdoor unit MVT 601 DC One indoor unit 1 e 2 e 3 e 4 e Two indoor units 5 6 7 8 e 9 e 10 e 11 e e Outdoor unit MVT 901 DC One indoor unit 1 2 3 e 4 Two indoor units 5 6 7 8 9 10 e 10 12 13 11 e Three indoor units Outdoor unit MVT 1051 DC One indoor unit 1 2 3 4 Two indoor units 5 6 7 8 9 10 Outdoor unit MVT 1051 DC Fortsetzung Three indoor units 185 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Four indoor units 33 34 35 36 37 38 39 40 41 42 43 44 45 46 48 49 50 51 52 5 54 55 56 uc 4 11 REMKO MXD 4 Operation The indoor unit is easily operated using the standard infrared re
18. Pl Assembly and operating instructions REMKO MXD 202 MXD 262 MXD 352 MXD 522 Ceiling cassette for inverter multi split designed outdoor units 0047 2013 05 Edition 1 en GB Read the instructions prior to performing any task 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 ina lation and operating instructions translation of the orig ina Table of contents 1 CoN O A 10 11 12 13 14 Safety and usage instructions nsns sre nns 4 1 1 General safety notes A 4 ez el eeler deu OF Leit 4 1 9 Personnel HESE 4 1 4 Dangers of failure to observe the safety notes 4 1 9 rede 4 1 6 Safety notes for the operator 5 1 7 Safety notes for installation maintenance and 5 1 8 Unauthorised modification and changes enne 5 cl 9 0 516 RE 5 VV E 5 111 Transport ane packaging sana agan ang aaa a kaanan agi aia ndan a Ka aa aaa an a gagi aa aaa a aia a 6 1 12 Environmental protection and recvchmg anana aaa mnm 6 E Wl e EE 7 Ce MERIT
19. afety functions Check the control system for the unit using the functions described in the chapter Oper ation Timer temperature setting fan speeds and changing to air circulation or dehumidifying mode Check the correct function of the condensa tion line by pouring distilled water into the condensation tray A bottle with a spout is recommended for pouring the water into the condensation tray ation Timer temperature setting fan speeds Final tasks Reassemble all disassembled parts E Familiarise the operator with the system NOTICE Check that the shut off valves and valve caps are tight after carrying out any work on the cooling cycle Use appropriate sealant prod ucts as necessary 10 Shut down Temporary shut down 1 Allow the indoor unit to run for 2 to 3 hours in air circulation mode or in cooling mode at the maximum temperature setting in order to remove any residual moisture from the unit Shut down the system using the remote con trol owitch off the voltage supply to the unit ELE Check the unit for visible signs of damage and clean it as described in the chapter Care and maintenance Permanent shut down Ensure that equipment and components are dis posed of in accordance with the applicable regula tions e g through authorised disposal and recy cling specialists or at collection points REMKO GmbH amp Co KG or your contractual partner will be pleased to provide a
20. al Connection condensate pump Evaporator fan motor 33 REMKO MXD Commissioning NOTICE Commissioning should only be performed by specially trained personnel and documented after the certificate has been issued Observe the operating manuals for the indoor unit and outdoor unit when commissioning the entire system Functional test for cooling mode O 1 Check the DIP switch settings on the PCB as Functional test for heating mode 9 Switch the supply voltage on Use the remote control to switch on the unit and select the heating mode maximum fan speed and highest nominal temperature Measure and record all the required values in the commissioning report and check the safety functions Measure the air intake temperature of the ceiling mounted cassette and the room tem perature approx 1 5 m above the floor In the event of deviation correct any temperature difference by means of the DIP switch SW1 s 5 on page 31 Check the control system for the unit using the functions described in the chapter Oper illustrated on chapter Choice of unit If neces sary set the DIP switches to the appropriate indoor unit type 1 2 4 4 34 Switch the supply voltage on Use the remote control to turn on the unit and select the cooling mode maximum fan speed and lowest nominal temperature Measure and record all the required values in the commissioning report and check the s
21. at all times Cleaning the cover of the indoor unit 1 Disconnect the supply voltage to the equip ment 2 Open and fold down the air inlet guard on the cover The filter is held in place by the flaps screwed in at the side of the guard Page 16 Fig 1 Fig 45 3 Clean the guard and cover using a soft damp cloth Switch the supply voltage back on Statutory regulations require an annual leak test for the cooling cycle dependant on the refrigerant quan tity Inspection and documentation of the work performed is to be carried out by specialist technicians 39 REMKO MXD Air filter for indoor unit Clean the air filter at intervals of no more than two weeks Reduce this interval if the air is especially dirty Cleaning the filter 1 Disconnect the supply voltage to the equip ment Open and fold down the air inlet guard on the cover The filter is held in place by the flaps screwed in at the side of the guard Fig 45 Tilt the filter to lift it out Fig 45 Clean the filter using a normal vacuum cleaner Fig 46 To do so turn the dirty side upward a Dirt can also be removed by carefully cleaning with lukewarm water and mild cleaning agents To do so turn the dirty side downward Fig 47 6 When using water allow the filter dry out 7 properly in air before replacing it in the unit Carefully insert the filter Make sure it is seated correctly
22. d laws such as Water Ecology Act must be observed The power supply should be adapted to the requirements of the units Units may only be mounted at the points pro vided for this purpose at the factory The units may only be secured or mounted on stable structures walls or floors 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 The units and components should not be oper ated in areas where there is a heightened risk of damage Observe the minimum clearances m The units and components must be kept at an adequate distance from flammable explosive combustible abrasive and dirty areas or atmospheres Safety devices must not be altered or bypassed 1 8 Unauthorised modification and changes Modifications or changes to units and components are not permitted and may cause malfunctions Safety devices may not be modified or bypassed Original replacement parts and accessories authorised by the manufactured ensure safety The use of other parts may invalidate liability for resulting consequences 1 9 Intended use Depending on the model the units and the addi tional fittings with which they are equipped are only intended to be used as an air conditioner for the purpose of cooling or heating the air in an enclosed space Any different or additional use is a non intended use The manufacturer sup
23. educing or extending adapter to the indoor units These fittings are included with the indoor unit as an accessory kit Once installed the connections should be sealed to prevent vapour diffusion Indoor unit Con Reducing extending Refrig Reducing extending Con necting erant pipe necting El SL aL f L SL Sk 2 0 kW 1 4 3 8 1 4 3 8 1 4 3 8 2 6 kW 1 4 3 8 1 4 3 8 1 4 3 8 3 5 kW 1 4 3 8 1 4 3 8 1 4 3 8 5 2 kW 1 4 3 8 Erw 3 8 AT gt 1 2 IT 4 4 1 2 1 4 1 2 Note SL Suction pipe large pipe EL injection pipe small pipe Adjacent room and fresh air connection The indoor unit is designed to cool an adjacent second room and independently of this to suction in fresh air Installation instructions To install the fresh air connection and the connec tion for the adjacent room proceed as follows 1 Remember that directly behind the insulation to be removed are the plate fins of the hea texchanger and that these may by no means be damaged Fig 30 Carefully remove the insulation behind the opening Fig 31 Fig 29 Adjacent room and fresh air connection 1 Fresh air connection 2 Adjacent room connection Break through the corresponding openings Fig 32 Keep the vent pipe as short as possible and lay it with as few bends as necessary NOTICE Only one adjacent room connection and one fresh air connection may be used yr GE Keep in mind t
24. en Heating cooling loads increased Neither cooling nor heating mode has been set Fins on outdoor compo nent blocked by foreign objects Leaking refrigerant circuit Outdoor component iced up Drainage pipe on collec tion container clogged damaged Faulty external conden sation pump or float Condensation has not drained away and has collected in the conden sation line Condensation does not drain off Float is stuck or jammed due to excessive dirt Have there been any structural usage related changes Does the cooling symbol appear on the display Is the fan on the outdoor component running Are the fins unobstructed Are there signs of frost on the fins of the indoor unit Check outdoor compo nent Has the cassette sensor on the outdoor component been cor rectly positioned Can the condensation drain off without any obstruction Is the collection tray full of water and the pump not running Is there a steady fall on the condensation pipe Check there is no blockage in the pipe Are the condensation lines unblocked and laid on a slope Are the con densation pump and float switch functioning cor rectly Are the LEDs on the receiver unit of the indoor unit flashing Close windows and doors install additional units Correct the settings for the unit Check the fan or winter controller reduce the air resistance Repair by specialist De ice and fit the sensor at
25. en the interior unit starts to cool down the air in the room If the temperature falls to approx 1 C below the set room temperature the controller will switch off the cooling function To protect the compressor the controller only turns cooling on again after a waiting period of 3 minutes Fig 14 Cooling mode 17 Zem REMKO MXD Heating mode In the heating mode you can heat the room in spring or fall The selected room temperature is set using the and keys in 1 C increments If the room temperature is 1 C below the selected target temperature the indoor unit starts to heat the air in the room If the set room temperature is exceeded by approx 1 C the controller will switch off the heater function To protect the compressor the controller will wait 3 minutes before switching on the heating mode again The fan operation starts only at a temperature of 32 C at the heat exchanger Fig 15 Heating mode 1 The heating mode has priority Turns on the indoor unit to the heating mode switch off the other indoor units from which are in cooling mode the cooling During heating operation can not be cooled 18 FAN key Function 1 Automatic 2 Low 3 Medium 4 High Automatic function ca 1 5 low level gt ca 1 5 middle level gt ca 3 5 high level Fig 16 Fan key Follow Me function This function allows the transfer
26. eoe EE 7 22 ADIN elle Le werende em 8 Design TUN CUO BEE 9 Set GEIER oid og 9 SOMME EE 10 12 Installation instructions for qualified oersonnel oenen eaaa aane ereen enen sneren ensen 22 HA STANI ara ja aa aaa psec aa JARE bana aana ja Fie aaa a a mad anaa aaa da aa aa jara 23 Condensate connection and safe dranage unne nennen ven eaaa eaaa anaa nennen 27 EISCHICAE 28 8 1 General information 28 OFAN LGI 28 8 3 Electrical connection diagram 30 CROCE RUNE TT T mm m 31 5 9 EIGCII Cal circuit GUAGE AIM E 32 34 inier 35 Troubleshooting and customer service 36 and mantenance nene 39 Exploded view of the unit and spare partslet 41 13 1 Exploded VIEW R E 41 13 2 Spare parts IRE 42 Je OE 43 MXD 1 Safety and usage instructions 1 1 General safety notes Carefully read the operating manual before com missioning the units for the first time It contains useful tips and notes such as hazard warnings to prevent personal inju
27. hat the flanged collar screws flexible folded spiral seam pipes and insula tion materials must be provided by the cus t tomer These parts can all be purchased NOTICE from your dealer Fig 33 The unit is factory filled with dry nitrogen for leak testing purposes The pressurised nitrogen is released when the union nuts are undone 24 Fig 33 Mounting connecting piece Adjacent room connection The indoor unit allows you to cool an adjacent room via a duct system e g in a suspended ceiling The following conditions must be met Pay attention to local regulations for air treat ment For the adjacent room connection a flanged collar with a minimum diameter of NW 150 must be mounting The cooling capacity of the indoor unit must be adequate for cooling both rooms There must be an opening created between the two rooms that allows the air to circulate between them A maximum pipe length of 7 m may not be exceeded Fig 34 To ensure that air is transported to the adja cent room 1 or 2 of the 4 air outlets are to be sealed on the indoor unit To do this use a black strip with adhesive on one side which is stuck to the opening s to be sealed The strip must be able to permanently withstand the strain from the air pressure Fig 34 Adjacent room connection A Main room B Adjacent room Fresh air connection As already described it is possible to
28. i dental adjustment of the set values The plug for connecting a cable remote control is located on the panel the ceiling cassette s Fig 24 A The 5 wired cable coming from the display board is provided with the designations A E s Fig 24 B Fig 22 LOCK key Fig 24 Connection of a cable remote control 21 REMKO MXD 5 Installation instructions for qualified personnel Important notes prior to installation Observe the operating manuals for the indoor unit and the outdoor unit when installing the entire system Transport the unit in its original packaging as close as possible to the installation location You avoid transport damage by doing so Check the contents of the packaging for com pleteness and check the unit for visible trans port damage Report any damage immediately to your contractual partner and the shipping company Lift the unit on the corners and not on the refrigerant or condensate drainage connec tions The refrigerant piping injection and suction pipe valves and connections must be insu lated against vapour density If necessary also insulate the condensate drainage line Select an installation location which allows air to freely flow through the air inlet and outlet see section Minimum clearances Donotinstall the unit in the immediate vicinity of devices which generate intensive thermal radiation Installation in the vicinity of thermal radia
29. l 2 Remove the cover of the control box Fig 40 Guide the power free cable through the edge protection rings in the box and lock the cable in the strain relief 4 Then connect the cable according to the wiring diagram Ut Connect the electrical connector of the cover with the corresponding counterparts of the cassette A confusion is not possible Re assemble the unit 1 Check all plugged and clamped terminals to verify that they are seated correctly and make permanent contact Tighten as required Fig 39 Accsess to the switch box Fig 40 Unit connection 1 Entrance power supply 2 Dismantle the cover of the switch box 3 Connection control line from the outdoor unit 29 REMKO MXD 8 3 Electrical connection diagram Connection MVT 601 DC 1051 DC Fig 41 Electrical connection diagram A Outdoor unit MVT 601 DC 1051 DC 1 Power supply B Indoor units MXD 202 522 2 Communication lines 30 8 4 Choice of unit Fig 42 Choice of unit with DIP switch 1 DIP switch 1 SW6 2 DIP switch 2 SW7 ON ON 6 MXD 202 12 412 ON ON 4K UH MXD 262 12 ON ON HH 2K HH MXD 352 l 2 ON ON BH EEPROM dependend HH MXD 522 l 2 URP 31 REMKO MXD 8 5 Electrical circuit diagram MXD 202 352 G WOO Q CE KFR20Q4 BP3TN1 Y hb A D 11 NP2 1 202302141057 Kasel WS P 0
30. l influences such as air side back pressure contamination or wear may cause a reduction in performance To ensure safe operation function we recom mend a maximum conveyor height of 450 mm should not be exceeded Fig 37 Condensate connection wrong Faraway riser To large small condensate pipe No slope No free outlet Qo s 16 20 mm Fig 38 Condensate connection right 2f REMKO MXD 8 Electrical wiring 8 1 General information A protected mains supply cable is to be connected to the outdoor unit and four wire control line is to be connected to the indoor unit respectively and protect accordingly A DANGER All electrical installation work is to be per formed by specialist companies Disconnect the power supply when connecting the elec trical terminals NOTICE The electrical connection for the units must be made at a separate feedpoint with a residual current device in accordance with local regula tions and should be laid out by an electrician We recommend to install a main repair switch on the building near the indoor unit The terminal blocks for making the connections are located inside of the unit After opening the cover they are reachable E condensate pump is available as an acces sory when using a turn off switch of the pump stop the power supply to the indoor unit 28 8 2 Unit connection Make the connection as follows 1 Open the air inlet gril
31. mote control The indoor unit beeps to acknowledge the correct transmission of data If it is not possible to program the indoor unit using the remote control it can also be manually operated Manual operation The indoor units can be started manually Press the MANUAL button on the receiver unit of the cover to activate automatic and the ooling mode then The third press turns the unit off A pressing again switches back to automatic mode Within the whole plant the unit having manually setting the cooling mode will be the guide unit In manual mode the following settings apply Cooling mode 24 fan speed AUTO Heating mode 26 fan speed AUTO Pressing any button on the infrared remote control interrupts manual mode Infrared remote control The infrared remote control sends the programmed settings over a distance of up to 6 m from the receiver of the indoor unit Data will only be received correctly if the remote control is pointed at the receiver and no objects obstruct the transmis sion path First insert the batteries supplied on delivery 2 x type AAA into the remote control To do so pull off the flap of the battery compartment and insert the batteries according to their polarity see mark ings 12 Fig 4 Maximum distance O 1 Alarms are indicated by a code see chapter Troubleshooting and customer service NOTICE Immediately replace flat batteries with a new set otherwise
32. n pipe If the condensation is being guided to a drainage pipe please install a siphon like hose guideway which acts as an odour seal The diameter of the condens connecting piece is 25 mm When operating the unit at outside tempera tures below 4 C ensure the condensate drainage is laid to 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 nec essary fit a pipe heater Following installation check that the conden sate run off is unobstructed and ensure that the line is durably leak tight Condensate draining If the temperature falls below the dew point con densation will form on the cooling fins during cooling mode A collection tray together with a con densation pump and float switch are fitted as standard below the cooling fins Should the float switch trip a protective shutdown due to inade quate removal of the condensation the pump will switch on immediately and run on for approx three minutes Ensured discharge in the event of leakage NOTICE Local regulations or environmental laws for example the German Water Resource Law WHG can require suitable precautions to protect against uncontrolled draining in case of leakage to provide for safe disposal of escaping refrigerator oil or hazardous media NOTICE The maximum capacity of the condensate pump is 500 mm WS Externa
33. ous situation which if not avoided may cause injury or mate rial and environmental damage NOTICE This combination of symbol and signal word warns of a potentially hazardous situation which if not avoided may cause material and environmental damage O 1 This symbol highlights useful tips and recom mendations as well as information for efficient and fault free operation 1 3 Personnel qualifications Personnel responsible for commissioning opera tion maintenance inspection and installation must be able to demonstrate that they hold a qualifica tion which proves their ability to undertake the work 1 4 Dangers of failure to observe the safety notes Failure to observe the safety notes may pose a risk to people the environment and the units Failure to Observe the safety notes may void any claims for damages In particular failure to observe the safety notes may pose the following risks The failure of important unit functions failure of prescribed methods of mainte nance and repair Danger to people on account of electrical and mechanical effects 1 5 Safety conscious working The safety notes contained in this manual the existing national regulations concerning accident prevention as well as any internal company working operating and safety regulations must be observed 1 6 Safety notes for the operator The operational safety of the units and compo nents is only assured pro
34. plier assumes no lia bility for damages arising from a non intended use The user bears the sole risk in such cases Intended use also includes working in accordance with the operating and installation instructions and complying with the maintenance requirements The threshold values specified in the technical data must not be exceeded 1 10 Warranty For warranty claims to be considered it is essential that the ordering party or its representative com plete and return the certificate of warranty to REMKO GmbH amp Co KG at the time when the units are purchased and commissioned The warranty conditions are detailed in the Gen eral business and delivery conditions Further more only the parties to a contract can conclude special agreements beyond these conditions In this case contact your contractual partner in the first instance REMKO MXD 1 11 Transport and packaging The devices are supplied in a sturdy shipping con tainer Please check the equipment immediately upon delivery and note any damage or missing parts on the delivery and inform the shipper and your contractual partner For later complaints can not be guaranteed N WARNING Plastic films and bags etc are dangerous toys for children Why Leave packaging material are not around Packaging material may not be accessible to children 1 12 Environmental protection and recycling Disposal of packaging All products are
35. problems Distribution REMKO offers not just a well established sales network both nationally and internationally but also has exceptionally highly qualified sales specialists REMKO field staff are more than just sales representatives above all they must act 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 REMKO GmbH amp Co KG reliable service Air conditioning and heating technology Im Seelenkamp 12 D 32791 Lage Postfach 1827 D 32777 Lage Telephone 49 5232 606 0 Telefax 49 5232 606 260 E mail info remko de Website www remko de We reserve the right to make technical changes and provide no guarantee as to the accuracy of this data
36. ry and material damage Failure to follow the directions in this manual not only presents a danger to people the environment and the system itself but will void any claims for liability Keep this operating manual and the refrigerant data sheet near to the units 1 2 Identification of notes This section provides an overview of all important safety aspects for proper protection of people and safe and fault free operation The instructions and safety notes contained within this manual must be observed in order to prevent accidents personal injury and material damage Notes attached directly to the units must be observed in their entirety and be kept in a fully legible condition oafety notes in this manual are indicated by sym bols Safety notes are introduced with signal words which help to highlight the magnitude of the danger in question A DANGER Contact with live parts poses an immediate danger of death due to electric shock Damage to the insulation or individual components may pose a danger of death A DANGER This combination of symbol and signal word warns of a situation in which there is immediate danger which if not avoided may be fatal or cause serious injury A 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 A CAUTION This combination of symbol and signal word warns of a potentially hazard
37. suction in fresh air outside air in addition to the room air with the indoor unit and regulate the temperature This is the preferred alternative in rooms where air is used up quickly attention to local regulations for air treat ment For the fresh air connection a flanged collar with a minimum diameter of 65 mm must be mounting Fig 35 25 Zem MXD Fig 35 Fresh air connection 1 A B Fresh air inlet Outdoor Indoor The quantity of fresh air may not exceed 10 of the nominal circulating air volume otherwise itis possible that the unit will not work properly To prevent rainwater from entering the unit the air may only be suctioned in by the fresh air intake at a maximum speed of 2 5 m s To connect the fan it is necessary for the cus tomer to install a separately fused electrical installation In addition in the following picture framed poly styrene partition the drip pan must be removed with a knife Fig 36 Fig 36 Fresh air inlet 1 26 Fresh air inlet 7 Condensate connection and safe drainage The condensate tray should have an incline of min 2 This is the responsibility of the cus tomer If necessary fit vapour diffusion proof insulation Ir the level of the condensation pipe on the unit is above that of the outlet route the pipe verti cally upwards and then with a fall to the drain Guide the unit s condensation pipe into the drai
38. there is a risk of leakage It is recommended that the batteries are removed if the equipment is shut down for longer periods O 1 Help save on energy consumption 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 Display on the indoor unit The lit LED indicators show the settings LED OPERATION green unit is on LED TIMER yellow timer is programmed LED DEF FAN red defrosting active air circulation mode LED ALARM red presence of a fault Fig 5 Display on the indoor unit 1 Unit for receiving signals from the remote con 4 Key for manual operation trol 5 Fan Defrost 2 Operation indicator 6 Alarm indicator 3 Timer indicator Keys on the remote control Key ON OFF Press this key to operate the unit 2 Key Q With this key the desired temperature can be decreased to 17 G Key With this key the desired temperature can be increased up to 30 4 Key MODE Press this key to select the operating mode The indoor unit has 5 modes 1 Automatic mode In this mode the unit works in cooling or in heating mode OOO OL D 02 2 Cooling mode In this mode the warm air in the room is cooled down to the desired temperature Fig 6 Keys of the remote control 13 MXD
39. tion reduces the unit output Install the refrigerant piping from the indoor unit to the outdoor unit Seal off open refrigerant piping with suitable caps or adhesive strips to prevent the infiltra tion of moisture and never kink or compress the refrigerant piping Only use the union nuts supplied with the refrigerant piping These should only be removed shortly before connecting the refrig erant piping Carry out all electrical wiring in accordance with applicable DIN and VDE standards Ensure the electrical cables are properly con nected to the terminals Otherwise there is a risk of fire Service openings should be provided in the suspended ceiling to allow maintenance access to the control box Installation materials The indoor unit is fastened using a wall brace and 4 bolts provided by the customer In order to complete the installation use the supplied installa tion material Appropriate dowels trapezoidal sheet metal supports steel profiles fixing clips for refrigerant and condensation pipes as well as laying ducts and connection fittings for condensa tion pipes must also be provided 22 Selection of installation location The indoor unit is designed for horizontal mounting in suspended ceilings with Euroraster dimensions It can also be installed in other types of suspended ceilings with different dimensions Take into account the installation height of the equipment Minimum clearances
40. ue Ts The target value can be adjusted between 17 and 30 by means of the 6 and C The fan speed is selected automati cally Fig 12 Automatic mode Funktion Tr lt Ts 1 C then operating mode Heating is selected Tr gt Ts 2 C then operating mode Cooling is selected Tr 1 C Ts 2 C then operating mode lation is selected If after the compressor is shut down and not required for more than 15 mins within an operating mode then in the event that the room temperature deviates the corresponding mode heating cooling or circulation will be selected again 1 The heating mode has priority Turns on the indoor unit to the heating mode switch off the other indoor units from which are in cooling mode the cooling During heating operation can not be cooled Dehumidification mode It is recommended that the target temperature be set to 24 in dehumidifying mode Due to the low temperature of the refrigerant the dew point of the air at the condenser is undercut The excess mois ture in the air is condensed by the vaporiser the room is dehumidified Fig 13 Dehumidification mode Cooling mode In cooling mode the air in the room is cooled down to the adjusted nominal temperature The desired room temperature is set with the and keys in 1 C increments If the room temperature is 0 5 C above the selected nominal temperature th
41. uit 32 33 Electrical 28 Electrical connection diagram 30 Ensured discharge in the event of leakage 2f Environmental protection 6 Exploded view aana aana aana naen anane eee 41 F Fault indication by flashing code 38 Hashing Bel 38 Fresh air 24 25 misil m reien antenne 26 Functional test Cooling mode ka 34 Heating mode 34 G Greenhouse gas according to Kyoto protocol 8 Infrared remote control 12 Installation instructions 24 Installation location selection 22 Installation materials 22 Intended use 5 K Keys on the remote 13 M MalntenanG amenderen 39 Malfunctions s 36 Possible 36 Sun Ee 36 Manual 12 Minimum 22 O Order spare parts 1 5 42 R Refrigerant lines
42. viding they are used as intended and in a fully assembled state The units and components may only be set up installed and maintained by qualified per sonnel Protective covers grille over moving parts must not be removed from units that are in operation Do not operate units or components with obvious defects or signs of damage Contact with certain unit parts or components may lead to burns or injury The units and components must not be exposed to any mechanical load extreme levels of humidity or extreme temperature Spaces in which refrigerant can leak sufficient to load and vent Otherwise there is danger of suffocation All housing parts and device openings e g air inlets and outlets must be free from foreign objects fluids or gases The units must be inspected by a service tech nician at least once annually Visual inspec tions and cleaning may be performed by the operator when the units are disconnected from the mains 1 7 Safety notes for installation maintenance and inspection Appropriate hazard prevention measures must be taken to prevent risks to people when per forming installation repair maintenance or cleaning work on the units The setup connection and operation of the units and its components must be undertaken in accordance with the usage and operating conditions stipulated in this manual and comply with all applicable regional regulations Local regulations an
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