Related Manuals for REMKO MXW 204
Summary of Contents for REMKO MXW 204
- Page 1 Operating and installation instructions REMKO MXW series Wall units for cooling and heating MXW 204, MXW 264, MXW 354, MXW 524 0220-2021-04 Edition 3, en_GB Read the instructions prior to performing any task!
- Page 2 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- Refrigerant prints! Translation of the original...
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Page 3: Table Of Contents
Table of contents Safety and usage instructions......................5 1.1 General safety notes........................5 1.2 Identification of notes........................5 1.3 Personnel qualifications........................5 1.4 Dangers of failure to observe the safety notes................5 1.5 Safety-conscious working....................... 6 1.6 Safety instructions for the operator....................6 1.7 Safety notes for installation, maintenance and inspection ............. - Page 4 REMKO MXW series Exploded view and spare parts ......................53 Index..............................55...
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Page 5: Safety And Usage Instructions
Safety and usage instructions DANGER! This combination of symbol and signal word 1.1 General safety notes warns of a situation in which there is immediate danger, which if not avoided may be fatal or Carefully read the operating manual before com- cause serious injury. -
Page 6: Safety-Conscious Working
REMKO MXW series In particular, failure to observe the safety notes All housing parts and unit openings, e.g. air may pose the following risks: inlets and outlets, must be kept clear. The units must be inspected by a service tech- The failure of important unit functions. -
Page 7: Unauthorised Modification And Changes
"certificate of warranty" to The setup, connection and operation of the REMKO GmbH & Co. KG at the time when the units and its components must be undertaken units are purchased and commissioned. -
Page 8: Environmental Protection And Recycling
REMKO MXW series 1.12 Environmental protection 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. -
Page 9: Technical Data
Technical data 2.1 Unit data Series MXW 204 MXW 264 MXW 354 MXW 524 Design-Wall unit for inverter multisplit outdoor units for cooling and Operating mode heating Nominal cooling output Nominal heat capacity Application area (room volume), approx. Adjustment range °C... -
Page 10: Unit Dimensions
Air inlet temperature TK 20 °C, outside temperature TK 7 °C / FK 6 °C, max. air volume, 5 m pipe length in combination with MVT outdoor unit Distance 1 m free field 2.2 Unit dimensions Fig. 1: Dimensions MXW 204-524 Measurements (mm) MXW 204/264/354 MXW 524 We reserve the right to modify the dimensions and design as part of the ongoing technical development process. -
Page 11: Design And Function
3.2 Combinations that provide sufficient cooling capacity. The out- door unit is controlled by the regulation of the The MXW 204-524 indoor units can be combined indoor unit. with the outdoor units from series MVT 603 DC, 903 DC, 1053 DC and 1403 DC. -
Page 12: Operation
REMKO MXW series Operation 4.1 General notes Alarms are indicated by a code (see chapter The indoor unit is easily operated using the Troubleshooting and customer service). standard infrared remote control. The indoor unit beeps to acknowledge the correct transmission of data. -
Page 13: Keys On The Remote Control
17 °C. “Follow me” function ( ) - Network configuration ( “Fresh” key - “Follow me” function ( ) Activates/deactivates the REMKO BioClean func- The selected function flashes in the display, con- tion (ionisation). firm with the “OK” key. - Page 14 REMKO MXW series “Clean” key Time-delayed switch-on active. Activates/deactivates the self-cleaning function of the unit (available depending on the unit model). Time-delayed switch-off active. “LED” key Silent mode active. Enables switching on/off the unit lighting and the signal tones (depending on the unit).
- Page 15 Temperature setting Cooling mode The temperature setting can be made within a Press the “Mode” key and activate the “Cool” range of 17-30 °C. The setpoint is adjusted in 1 °C function. steps. Set the desired temperature using the “Λ ” and “V”...
- Page 16 REMKO MXW series Timer function Time-delayed switch-off With the “Timer” function, the unit can switch on Press the “Timer” key to enter the “Time with a switch-on delay or switch off with a switch- OFF” setting off delay. Use the arrow keys to select the desired...
- Page 17 Combining time-delayed switching on and off 14.00 15.00 15.30 16.00 17.00 18.00 13.00 Fig. 11: Combining time-delayed switching on and off 1: Timer starts a: current (13:00) 2: Unit switches on b: 2.5 hours later 3: Unit switches off c: 5 hours later Example: If both timers are activated at 13:00, the unit switches on 2.5 hours later (at 15:30) and switches off 5 hours later (at 18:00).
- Page 18 REMKO MXW series Deactivate lighting and signal tones Frost protection function Press the “LED” key to switch the unit lighting The air conditioning unit operates at high fan on and off. speed with a fixed setpoint of 8 °C (only available in heating mode).
- Page 19 Self-cleaning function “Turbo” function Press the “Clean” key (not available on all unit models). If the “Turbo” key is pressed in cooling mode, the unit operates with the highest possible cooling Due to the formation of condensate on the heat capacity and at the same time with the highest fan exchanger and the residual moisture that remains, speed.
- Page 20 AP mode (network configuration) Not available for all unit types and can only be used in combination with the optional REMKO WifiStick. AP mode can be activated by pressing the “LED” key several times within 10 seconds. The unit is now in net- work configuration mode.
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Page 21: Installation Instructions For Qualified Personnel
Installation instructions for qualified personnel 5.1 Important notes prior to instal- 5.2 Installation materials lation The indoor unit is attached to the wall by a wall bracket and 4 screws (to be provided by the cus- Observe the operating manuals for the indoor unit tomer). -
Page 22: Minimum Clearances
REMKO MXW series 5.4 Minimum clearances Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution. 1600 Fig. 22: Minimum clearances 1: Air inlet 2: Air outlet 5.5 Connection variants for the indoor unit The following connection variants can be used for the refrigerant, condensate and control lines. -
Page 23: Connection Of The Indoor Unit When The Refrigerant Piping Is Installed Under The Plaster
5.6 Connection of the indoor unit when the refrigerant piping is installed under the plaster If the customer routes the refrigerant piping to the unit underneath the plaster, observe the following note. The principal connection options can be found in the "Connection variants for the indoor unit" and "Wall bracket "... -
Page 24: Wall Bracket
REMKO MXW series 5.7 Wall bracket Fig. 25: Indoor unit wall bracket MXW 204-524 (rear view) Measurements (mm) MXW 204 MXW 264 MXW 354 MXW 524 We reserve the right to modify the dimensions and design as part of the ongoing technical development... -
Page 25: Installation
Installation NOTICE! Unit installation The unit is factory filled with dry nitrogen for leak testing purposes. The pressurised nitrogen NOTICE! is released when the union nuts are undone. Installation should only be performed by author- ised specialists. The unit is attached by means of a wall bracket, considering the air discharge side located in the lower part. -
Page 26: Condensate Drainage Connection And Safe Drainage
REMKO MXW series Condensate drainage Safe drainage in the event of leakages connection and safe The REMKO oil separator OA 2.2 fulfils the fol- lowing list of requirements from regional regula- drainage tions and laws. Condensate drainage connection Due to the dew point shortfall on the evaporator,... -
Page 27: Electrical Wiring
Electrical wiring 8.1 General notes A protected power supply cable is to be connected to the outdoor unit and a four-core control line with a minimum cross-section of 1.5 mm . To avoid EMC interference, only use shielded cable for this purpose and connect the shielding on both sides. -
Page 28: Electrical Wiring Diagram
Connection MVT 603-1403 DC L(1) 2(N) S L(1) 2(N) S L(A) N(A) S(A) L(B) N(B) S(B) 230V/1~/50 Hz L(C) N(C) S(C) L(1) 2(N) S Fig. 29: Electrical wiring diagram Outdoor unit MVT 603-1403 DC Power supply : Indoor units MXW 204-524 Communication lines... - Page 29 Connection of optional condensate pump KP 6/KP 8 W 1(L) 2(N) W 1(L) 2(N) L N PE Fig. 30: Electrical wiring diagram Outdoor unit Condensate pump supply Indoor unit Condensate pump fault contact KP6/KP8 condensate pump BK: black Power supply cable WH: white...
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Page 30: Electrical Drawings
REMKO MXW series 8.3 Electrical drawings MXW 204-524 Weiß/ White Rot/ Blau/ Yellow/ Blue Gelb W 1(L) 2(N) S N-IN Cn31 Fig. 31: Electrical drawings A: Control board 3: Fin motor, vertical B: Display board 4: Fin motor, horizontal C: Control line from outdoor unit... -
Page 31: Connection Of An Optional Superordinate Controller Provided By The Customer
The units of type ML are fitted with a USB slot behind the unit trim in the factory. This facilitates X Y E use of the optional REMKO WiFi stick. For informa- tion on the installation of the REMKO WiFi stick, please refer to the corresponding installation and operating manual. - Page 32 REMKO MXW series Activation and deactivation via an external ena- bling contact: Optionally, the system can be switched by an external controller. The connection also takes place via the multifunction board. COOL Fig. 38: Connection terminal SWITCH1 & Fig. 36: Connect to the adapter board...
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Page 33: Commissioning
Commissioning NOTICE! Check that the shut-off valves and valve caps NOTICE! are tight after carrying out any work on the Commissioning should only be performed by cooling cycle. Use appropriate sealant products specially trained personnel and documented as necessary. after the certificate has been issued. Observe the operating manuals for the indoor unit and outdoor unit when commissioning the entire system. -
Page 34: Troubleshooting And Customer Service
REMKO MXW series Troubleshooting and customer service 10.1 Troubleshooting and customer service The unit and components are manufactured using state-of-the-art production methods and tested several times to verify their correct function. However, if alarms should occur, please check the functions as detailed in the list below. - Page 35 Malfunction Possible causes Checks Remedial measures Windows and doors Have structural / usage Close windows and open. Heating / cooling modifications been doors / install additional load has increased made? units Cooling mode is not set Does the cooling symbol Correct the settings for appear on the display? the unit...
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Page 36: Indoor Unit Fault Analysis
REMKO MXW series Fault display on the indoor unit Display Error description EEPROM error, indoor unit Communication error between indoor unit and outdoor unit Fan speed control indoor unit disabled Room temperature probe T1 defective Temperature probe, evaporator T2 defective... - Page 37 Error code: Reason: The indoor unit does not receive a signal from the outdoor unit within 110 seconds. Cause: Electrical connection not configured correctly Control boards outdoor unit or indoor unit defective Switch off voltage, switch on again 2 minutes later.
- Page 38 REMKO MXW series Error code: E3 / F5 Reason: If the fan speed of the indoor unit/outdoor unit falls below 300 rpm, the unit switches off and the display shows error code E3 or E5 Cause: Electrical connection faulty Evaporator fan wheel defective...
- Page 39 Procedure DC fan motor of the indoor unit (control chip is installed in the motor): Switch on the voltage to the unit. In standby mode, measure the unit between terminals 1-3 and 4-3 of the connector plug. Check the measured values against those listed in the table below. If these differ, there is a problem with the control board and it must be replaced.
- Page 40 REMKO MXW series Error code: Reason: The evaporator probe T2 measures the actual value with the compressor start and takes this as the reference value T . If, 5 minutes after the compressor start, the value T Start Start has not dropped by 2 °C for at least 4 seconds then the system assumes that the refrig- erant is low.
- Page 41 Error code: E4 / E5 / F1 / F2 / F3 Reason: If the test voltage of the probes is lower than 0.06 V or higher than 4.94 V then the display shows the error code of the corresponding probe. Cause: Electrical connection faulty Temperature probe defective...
- Page 42 REMKO MXW series Error code: Reason: Safety shutdown due to overly high current consumption of individual unit components Cause: Faulty power supply Cooling circuit blocked Faulty control board Electrical connections faulty Compressor defective Switch the unit off and ensure correct supply Check the supply voltage.
- Page 43 Error code: Reason: If the power supply to the compressor controller is faulty, the display shows the error code “P0” and the unit switches off Cause: Electrical connection faulty Faulty control board Condenser fan motor defective or blocked Compressor defective Check the connecting cables between the con- Establish a correct connection between the trol board and compressor? Are they faulty?
- Page 44 REMKO MXW series Error code: Reason: Overvoltage or undervoltage protection has tripped Cause: Faulty supply voltage Refrigerant low or cooling circuit blocked Faulty control board Check the power supply. Is the supply voltage Switch the unit off and have the power supply correct? checked/corrected.
- Page 45 Error code: P2 (with units with a thermal contact) Reason: If the test voltage of the thermal contact does not lie at 5 V, then the display shows the error message “P2” Cause: Faulty supply voltage Refrigerant low or cooling circuit blocked Faulty control board Check the air flow volumes of the...
- Page 46 REMKO MXW series Error code: Reason: Safety shutdown of inverter controller. Internal system monitoring triggered (e.g. communi- cation problem between board and compressor, the compressor speed is not OK) Cause: Faulty electrical connections Inverter regulation on board defective Condenser fan motor defective...
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Page 47: Resistances Of The Temperature Probes
10.3 Resistances of the Temp. Resistance Temp. Resistance temperature probes (°C) (kW) (°C) (kW) 4.39 1.21 Probe T1, T2, T3 and T4 4.21 1.17 Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) 4.05 1.14 115.27 18.72 3.89 1.10 108.15 17.80 3.73 1.06 101.52... - Page 48 REMKO MXW series Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) (°C) (kW) (°C) (kW) 0.42 0.30 82.54 18.96 0.41 0.29 78.79 18.26 0.40 0.28 75.24 17.58 0.39 0.28 71.86 16.94 0.38 0.27 68.66 16.32 0.37 0.26...
- Page 49 Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) 5.66 2.86 5.49 2.78 5.32 2.70 5.16 2.63 5.00 2.56 4.85 2.49 4.70 2.42 4.56 2.36 4.43 2.29 4.29 2.23 4.17 2.17 4.05 2.12 3.93 2.06 3.81 2.01 3.70 1.96 3.60 1.91 3.49 1.86 3.39...
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Page 50: Care And Maintenance
REMKO MXW series Care and maintenance Maintenance It is recommended that you take out a mainte- Regular care and observation of some basic points nance contract with an annual service from an will ensure trouble-free operation and a long appropriate specialist firm. - Page 51 Cleaning the housing Disconnect the power supply to the unit. Open and fold the air inlet grill on the front side upwards. Clean the grill and cover with a soft, damp cloth. Switch the power supply back on. Air filter for indoor unit Clean the air filter at intervals of no more than 2 Fig.
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Page 52: Shutdown
Ensure that units and components are disposed of in accordance with local regulations, e.g. through authorised disposal and recycling specialists or at collection points. REMKO GmbH & Co. KG or your contractual partner will be pleased to provide a list of certified firms in your area. - Page 53 Exploded view and spare parts Exploded view of the unit MXW 204-524 Fig. 45: Exploded view of the unit MXW 204-524 We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
- Page 54 REMKO MXW series Spare parts list MXW 204-524 IMPORTANT! To ensure the correct delivery of spare parts, please always the device type with the corresponding serial number (see type plate) No. Designation Unit trim Air filter, single Circuit board, display...
- Page 55 Index Multifunction board, connection ... . . 31 Alarms Checks ......34 Ordering spare parts .
- Page 56 REMKO QUALITY WITH SYSTEMS Air-Conditioning | Heating | New Energies Telephone +49 (0) 5232 606-0 REMKO GmbH & Co. KG Hotline within Germany +49 (0) 5232 606-0 Klima- und Wärmetechnik Telefax +49 (0) 5232 606-260 Im Seelenkamp 12 E-mail info@remko.de...