REMKO HITLINE SKW Series Operating And Installation Instructions
  1. Manuals
  2. Brands
  3. REMKO Manuals
  4. Air Conditioner
  5. HITLINE SKW Series
  6. Operating and installation instructions

REMKO HITLINE SKW Series Operating And Installation Instructions

Wall mounted units in split design
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Operating and
installation instructions
REMKO SKW series
Wall mounted units in split design
SKW 261 DC, SKW 351 DC, SKW 521 DC
0273-2020-12 Edition 2, en_GB
Read the instructions prior to performing any task!

Advertisement

Table of Contents
loading

Related Manuals for REMKO HITLINE SKW Series

Summary of Contents for REMKO HITLINE SKW Series

  • Page 1 Operating and installation instructions REMKO SKW series Wall mounted units in split design SKW 261 DC, SKW 351 DC, SKW 521 DC 0273-2020-12 Edition 2, 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...

  • 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 SKW series Commissioning........................... 40 Troubleshooting and customer service.................... 42 11.1 Troubleshooting and customer service..................42 11.2 Indoor unit fault analysis......................44 11.3 Resistances of the temperature probes..................55 Care and maintenance........................58 Shutdown............................. 60 Exploded view and spare parts lists....................61 14.1 Exploded view - Indoor unit......................

  • 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 SKW 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 SKW 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 SKW 261 DC SKW 351 DC SKW 521 DC Inverter wall-mounted room air conditioning unit combi- Operating mode nation for cooling and heating 2.6 (0.9-3.4) 3.5 (1.1-4.2) 5.2 (1.8-6.1) Nominal cooling output Energy efficiency ratio SEER El.
  • Page 10 REMKO SKW series Data specific to indoor unit SKW 261 DC IT SKW 351 DC IT SKW 521 DC IT Application area (room volume), approx. Adjustment range, room temperature °C +16 to +30 Air flow volume per stage 360/460/520 360/500/600...
  • Page 11 Data specific to outdoor unit SKW 261 DC AT SKW 351 DC AT SKW 521 DC AT Power supply V/Ph/Hz 230/1~/50 Operating range, cooling °C +5 to +50 Operating range, heating °C -15 to +30 Air flow rate, max. m³/h 1750 1800 2500...

  • Page 12: Unit Dimensions

    REMKO SKW series 2.2 Unit dimensions Outdoor units Fig. 1: Outdoor unit SKW 261-521 DC AT dimensions Measurements (mm) SKW 261-351 DC SKW 521 DC Indoor units Fig. 2: Indoor unit dimensions SKW 261-521 DC Measurements (mm) SKW 261-351 DC...

  • Page 13: Design And Function

    Design and function 3.1 Unit description The SKW room air conditioners have a SKW...AT outdoor unit as well as an SKW...IT indoor unit. In cooling mode, the outdoor unit serves to output the heat extracted by the indoor unit from the room being cooled.

  • Page 14: Operation

    REMKO SKW series Operation 4.1 General notes The indoor unit is easily operated using the standard infrared remote control. The indoor unit beeps to acknowledge the correct transmission of data. If it is not possible to program the indoor unit with the remote control, then it can also be man- ually operated.

  • Page 15: Display On Indoor Unit

    4.2 Display on indoor unit “On/Off” key Press this key to switch the air conditioning unit on The display illuminates according to the settings. and off. “Arrow up” temperature key Increases the setpoint in 1 °C steps up to a tem- perature of max.
  • Page 16 Battery low (flashing). temperature of min. 17 °C. Signal transmission “Fresh” key Lights up when a signal is sent from the IR remote Activates/deactivates the REMKO BioClean func- control to the air conditioning unit. tion (ionisation). Time-delayed switch-on active. “Clean” key Activates/deactivates the self-cleaning function of the unit (available depending on the unit model).
  • Page 17 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 18 REMKO SKW 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 19 Combining time-delayed switching on and off 14.00 15.00 15.30 16.00 17.00 18.00 13.00 Fig. 13: 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 20 REMKO SKW 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 21 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 22 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.

  • Page 23: Installation Instructions For Qualified Personnel

    Installation instructions for qualified personnel 5.1 Important notes prior to instal- 5.2 Wall openings lation A wall opening of at least 65 mm diameter and 10mm incline from the inside to the outside Transport the unit in its original packaging as must be created.

  • Page 24: Selection Of Installation Location

    REMKO SKW series 5.4 Selection of installation Wind location If the unit is being installed in windy areas, ensure that the warm outlet air is discharged in the pre- Indoor unit vailing wind direction. If this is not the possible, it...

  • Page 25: Minimum Clearances

    Fig. 27: Installation inside buildings K: Cold fresh air / W: Warm air 3: Air shaft 1: Outdoor unit / 2: Additional fan 5.5 Minimum clearances Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution.

  • Page 26: Oil Return Measures

    REMKO SKW series 5.6 Oil return measures If the outdoor unit is installed at a higher level than the indoor unit, suitable oil return measures must be taken. Usually, an oil pump bend is installed for every 7 metres of height difference.

  • Page 27: Connection Variants For The Indoor Unit

    5.8 Connection variants for the indoor unit The following connection variants can be used for the refrigerant, condensate and control lines. Fig. 30: Connection variant (view from the rear) A: Infeed of the refrigerant piping at the wall, left C: Outlet on the wall, right B: Outlet through the wall, right 5.9 Connection of the indoor unit when the refrigerant piping is installed under the plaster...

  • Page 28: Installation

    REMKO SKW series Installation 6.2 Connecting the refrigerant piping 6.1 Installation of the indoor unit The refrigerant piping is connected (responsibility The indoor unit is attached by means of a wall of the customer) on the back side of the units.
  • Page 29 The following instructions describe the installation of the cooling cycle and the assembly of the indoor unit and the outdoor unit. Label the refrigerant piping (injection and suc- The required pipe diameters are given in the tion pipes) as well as the associated electrical table "Technical data".

  • Page 30: Additional Notes On Connecting The Refrigerant Piping

    REMKO SKW series Fig. 34: Flanging the refrigerant piping 1: Flanging tool Fig. 36: Tightening the fitting 1: Tighten with the first open-ended spanner 2: Counter with the second open-ended spanner Pipe dimension Tightening torque in inches in Nm 1/4"...

  • Page 31: Leak Testing

    6.4 Leak testing 6.5 Adding refrigerant Once all the connections have been made, the The units contain a basic quantity of refrigerant. In pressure gauge station is attached to the Schrader addition, an additional amount of refrigerant must valve as follows (if fitted): be added for refrigerant piping lengths exceeding 5 metres per circuit.

  • Page 32: Condensate Drainage Connection And Safe Drainage

    REMKO SKW series Condensate drainage connection and safe drainage Fig. 38: Dimensions for the strip foundation (bird's eye view) For the designations of 1,3,5,8,9 and 11, please refer to the legend for Fig. 37 dimensioning of the strip foundation Dimen-...
  • Page 33 min. 2% Fig. 39: Condensate drainage connection - Indoor unit Safe drainage in the event of leakages The oil separator OA 2.2 fulfils the following list of requirements from regional regulations and laws. NOTICE! Local regulations or environmental laws, for example the German Water Resource Law (WHG), can require suitable precautions to pro- tect against uncontrolled draining in case of...

  • Page 34: Electrical Wiring

    REMKO SKW series Electrical wiring 8.1 General notes Make the connection as follows: Open the air inlet grill. A protected power supply cable is to be connected to the outdoor unit and 5-core control line is to be Remove the covers on the right-hand side connected to the indoor unit respectively.

  • Page 35: Outdoor Unit Connection

    8.3 Outdoor unit connection Fix the line in the strain relief and re- assemble the unit. Proceed as follows to connect the line: Remove the side-panel cover. Choose the cable cross-section in accord- ance with the relevant specifications. Connect the lines as shown on the electrical connection diagram.
  • Page 36 REMKO SKW series Connection of optional condensate pump KP 6/KP 8 2(N) 2(N) L N PE Fig. 42: Electrical wiring diagram Outdoor unit Condensate pump supply Indoor unit Condensate pump fault contact Condensate pump BK: black Power supply cable WH: white...

  • Page 37: Electrical Drawings

    8.5 Electrical drawings Indoor units SKW 261-521 DC IT Fig. 43: Electrical drawings A: Control board 2: Ion generator B: Display board 3: Evaporator fan motor C: Remote control (optional) 4: Swing motor, horizontal D: Outdoor unit connection 5: Swing motor, vertical 1: Temperature probe, recirculation T1 6: Temperature probe, evaporator T2...
  • Page 38 REMKO SKW series Outdoor units SKW 261-351 DC AT Fig. 44: Electrical drawings A: Control board Condensate tray heating (optional) B: Power supply cable AC condenser fan motor (optional) C: Indoor unit connection Heat gas temperature probe Transformer (optional) Liquid line temperature probe...
  • Page 39 Outdoor units SKW 521 DC AT YELLOW OR BLACK BLUE 2(N) 1(L) CN 1A 4-WAY BLUE BLACK CN 21 CN 7 CN 31 Fig. 45: Electrical drawings A: Control board 4: Condensate tray heating (optional) B: Power supply cable 5: Temperature probe, heat gas line T5 C: Indoor unit connection 6: Temperature probe, condenser outlet T3 1: Compressor...

  • Page 40: Before Commissioning

    REMKO SKW series Before commissioning Commissioning Perform the following checks prior to putting the unit into operation for the first time and after any NOTICE! work on the cooling cycle. Record the results in the commissioning report: Commissioning should only be performed by...
  • Page 41 Function test of the cooling and heating modes Remove the protective caps from the valves. Start the commissioning procedure by briefly opening the shut-off valves on the outdoor unit until the pressure gauge indicates a pressure of approx. 2 bar. Check all connections for leaks with leak detection spray and suitable leak detectors.

  • Page 42: Troubleshooting And Customer Service

    REMKO SKW series Troubleshooting and customer service 11.1 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 43 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...

  • Page 44: Indoor Unit Fault Analysis

    REMKO SKW series Fault display on the indoor unit Display Error description EH 00 EEPROM error, indoor unit EL 01 Communication error between indoor unit and outdoor unit EH 03 Fan speed control indoor unit disabled EH 60 Room temperature probe T1 defective...
  • Page 45 Error code: Reason: The indoor unit does not receive a signal from the outdoor unit within 110 seconds. The check is performed 4 times in a row, then error E1 is displayed. Cause: Electrical connection not configured correctly Control boards outdoor unit or indoor unit defective Switch off voltage, switch on again 2 minutes later.
  • Page 46 REMKO SKW 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 47 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 48 REMKO SKW 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 49 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 50 REMKO SKW 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 51 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 52 REMKO SKW 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 53 Error code: P2 (with units with a thermal contact) Reason: If the test voltage of the thermal contact does not lie at 5V 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 54 REMKO SKW 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...

  • Page 55: Resistances Of The Temperature Probes

    11.3 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 56 REMKO SKW 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 57 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...

  • Page 58: Care And Maintenance

    REMKO SKW 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 59 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.

  • Page 60: 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 61: Exploded View And Spare Parts Lists

    Exploded view and spare parts lists 14.1 Exploded view - Indoor unit Fig. 53: Exploded view of the unit SKW 261-521 DC IT We reserve the right to modify the dimensions and design as part of the ongoing technical development process.

  • Page 62: Spare Parts List - Indoor Unit

    REMKO SKW series 14.2 Spare parts list - Indoor unit 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, set Display board...

  • Page 63: Exploded View Of The Outdoor Unit

    14.3 Exploded view of the outdoor unit Fig. 54: Exploded view of the unit SKW 261-521 DC AT We reserve the right to modify the dimensions and design as part of the ongoing technical development process.

  • Page 64: Spare Parts List - Outdoor Unit

    REMKO SKW series 14.4 Spare parts list - Outdoor unit IMPORTANT! To ensure the correct delivery of spare parts, please always the device type with the corresponding serial number (see type plate) No. Designation Temperature probe, air inlet T4 Condenser...
  • Page 65 No. Designation Terminal block Temperature probe, heat gas line T5 Condenser Condenser mounting...

  • Page 66: Index

    REMKO SKW series Index Alarms Oil return measures ..... . 26 Checks ......42 Ordering spare parts .
  • Page 68 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...

This manual is also suitable for:

Hitline skw 261 dcHitline skw 351 dcHitline skw 521 dc

Table of Contents