REMKO WKF 120 Assembly And Operating Instructions Manual
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REMKO WKF 120 Assembly And Operating Instructions Manual

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Assembly and operating instructions
REMKO WKF Duo - Inverter heat pump WKF 120/180 Duo
Planning Guide and Installation Manual
Instructions for the Technician
Read the instructions prior to performing any task!
0073-2014-01 Edition 1, en_GB

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Summary of Contents for REMKO WKF 120

  • Page 1 Assembly and operating instructions REMKO WKF Duo - Inverter heat pump WKF 120/180 Duo Planning Guide and Installation Manual Instructions for the Technician Read the instructions prior to performing any task! 0073-2014-01 Edition 1, en_GB...
  • 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- prints! Installation and operating instructions (translation of the orig- inal)

  • Page 3: Table Of Contents

    10.1 Control panel and information on commissioning............... 44 Care and maintenance........................46 Temporary shut-down........................46 Troubleshooting and customer service.................... 47 13.1 Troubleshooting and customer service..................47 13.2 Emergency-heat operation......................53 Exploded view and replacement parts....................54 14.1 Exploded view of the WKF 120 Duo outdoor unit............... 54...
  • Page 4 REMKO WKF Duo 14.2 Exploded view of the WKF 180 Duo outdoor unit............... 56 14.3 Exploded view of the WKF 120/180 Duo indoor unit..............58 General terms............................60 Index..............................62...

  • Page 5: Safety And Usage Instructions

    Safety and CAUTION! usage instructions This combination of symbol and signal word 1.1 General safety notes warns of a potentially hazardous situation, which if not avoided may cause injury or mate- Carefully read the operating manual before com- rial and environmental damage. missioning the units for the first time.

  • Page 6: Safety Notes For The Operator

    "certificate of warranty" to Local regulations and laws such as Water REMKO GmbH & Co. KG at the time when the units are purchased and commissioned. Ecology Act must be observed.

  • Page 7: Transport And Packaging

    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.

  • Page 8: Technical Data

    REMKO WKF Duo Technical data 2.1 Unit data Series WKF 120 Duo WKF 180 Duo Function Heating or Cooling System Split air/water Heat pump manager Smart Control Enamelled drinking water storage tank External Auxiliary heater / rated output Optional / 9 kW...
  • Page 9 Series WKF 120 Duo WKF 180 Duo Refrigerant / pre-charge quantity for up to 10 m length of ordinary pipe Refrigerant connections Inches (mm) 3/8" (9.52) / 5/8" (15.9) Refrigerant piping length, max. Refrigerant piping height, max. Power supply per outdoor unit...

  • Page 10: Unit Dimensions, Outdoor Units

    Fig. 1: Dimensions, outdoor units WKF 120/180 Duo AM Dimensions in mm WKF 120 Duo AM 1010 WKF 180 Duo AM 1430 2.3 Unit dimensions, indoor units Unit dimensions, indoor units WKF 120/180 Duo Fig. 2: Dimensions indoor units, series WKF 120/180 Duo (all measurements in mm)

  • Page 11: Pump-Characteristic Curves, Indoor Module Charging Pump

    Arrangement of the pipe sockets and designations on the pipe connections Fig. 3: Arrangement of the pipe sockets and designations on the pipe connections WKF 120/180 Duo Pipe connection arrangement Refrigerant liquid pipe, Outdoor unit B 3/8" Designations of the pipe connections Refrigerant liquid pipe, Outdoor unit A 3/8"...

  • Page 12: Heat Pump Usable Limits In Monovalent Mode

    10°C 20°C 30°C 40°C [ ° C] Außentemperatur [°C] Fig. 5: Usable limits and test points WKF 120 Duo AT: Outside temperature, ST: refers to the heating water inlet temperature. Outside temperature [°C] Inlet temperature [°C] 60°C 35; 55 -10; 55 55°C...

  • Page 13: Overall Sound Power Level - Outdoor Unit

    8000 A L Hz 1000 1600 2500 4000 6300 Cursor: Frequenz (Hz) Fig. 7: Overall sound power level L of a REMKO outdoor unit, type: WKF 120 Duo Middle frequency [Hz] 31.50 LI [dBA] (27.6) (40.9) (38.3) (31.4) (45.3) (33.5) 40.0...
  • Page 14 28,0 30,0 20,0 10,0 1000 1600 2500 4000 6300 Frequenz (Hz) Fig. 8: Overall sound power level L of a REMKO outdoor unit, type: WKF 180 Duo Middle frequency [Hz] 31.50 LI [dBA] (31.4) (41.6) (32.8) (40.8) (37.3) (37.4) 49.8 45.8...

  • Page 15: Characteristic Curves

    Heating capacity at an inlet temperature of 45 °C 40,0 35,0 30,0 25,0 20,0 n-max 15,0 10,0 [° C] Fig. 10: Heating capacity WKF 120 Duo at an inlet temperature of 45 °C AT: Outside temperature / HL: Heating capacity NF: Rated frequency / n-max: max. frequency...
  • Page 16 10,0 [° C] Fig. 11: Heating capacity WKF 120 Duo at an inlet temperature of 55 °C AT: Outside temperature / HL: Heating capacity NF: Rated frequency / n-max: max. frequency COP at inlet temperature 35°C, 45°C and 55°C 35°...
  • Page 17 Heating capacity at an inlet temperature of 35°C 45,0 40,0 35,0 30,0 25,0 n-max 20,0 15,0 10,0 [° C] Fig. 13: Heating capacity WKF 180 Duo at an inlet temperature of 35°C AT: Outside temperature / HL: Heating capacity NF: Rated frequency / n-max: max. frequency Heating capacity at an inlet temperature of 45 °C 40,0 35,0...
  • Page 18 REMKO WKF Duo Heating capacity at an inlet temperature of 55 °C 40,0 35,0 30,0 25,0 n-max 20,0 15,0 10,0 [° C] Fig. 15: Heating capacity WKF 180 Duo at an inlet temperature of 55 °C AT: Outside temperature / HL: Heating capacity NF: Rated frequency / n-max: max.
  • Page 19 Heating capacity losses for WKF 120 Duo +30 m 100% -30 m Fig. 17: Heating capacity losses for WKF 120 Duo A: Difference in elevation B: Length of refrigerant piping Cooling capacity losses for WKF 120 Duo +30 m...
  • Page 20 REMKO WKF Duo Heating capacity losses for WKF 180 Duo +30 m 100% -30 m 15 20 30 35 40 Fig. 19: Heating capacity losses for A: Difference in elevation B: Length of refrigerant piping Cooling capacity losses for +30 m...

  • Page 21: Design And Function

    3.1 The heat pump in general All models are able to cool as well as heat Low noise-level of the outdoor unit Arguments for REMKO inverter heat pumps Flexible installation due to split system design Low heating costs in comparison to oil and gas Negligible maintenance costs.
  • Page 22 REMKO WKF Duo Water heat pumps require two wells in order to ronment. In the compressor, the refrigerant is obtain heat from the groundwater, one supply well brought to a higher pressure and temperature by and one dry well. The development of this source the application of electrical energy.
  • Page 23 Heat pump operating mode so-called U value). Also required are the room tem- perature and the standard outside temperature, Heat pumps can work in various operating modes. that is, the lowest outside-temperature on average that will occur during the year. The equation for Monovalent determining the transmission heat requirement is The heat pump is the only heat generator for the...
  • Page 24 VDI 4650 Fig. 23: Heating capacity diagram for the WKF Duo heat pump Characteristics of REMKO inverter heat pumps Usable in all situations Air is available every- where in unlimited quantities. For example, no wells are required.
  • Page 25 Split AC unit modify the condenser speed and the speed of the The REMKO inverter heat pump is a so-called split fan as required. The condenser works at a higher unit. This means that it consists of an outdoor unit speed when under full load than under partial load.
  • Page 26 KWK and WLT-S series units on our website cuit, so that the hot gas from the compressor flows www.remko.de The advantage here is that dew through the original evaporator and the ice that has point monitoring is not required.

  • Page 27: Installation

    Installation 4.1 System layout Fig. 26: WKF 120 Duo system layout Outdoor area KML: Refrigerant piping " and " Indoor area NAM: Power supply, OU = 230V / 1~ / 50Hz AM1,2: WKF 120 Duo outdoor unit 20A (e.g. 3x2.5 mm...
  • Page 28 REMKO WKF Duo Fig. 27: WKF 180 Duo system layout Outdoor area KML: Refrigerant piping " and " Indoor area NAM: Power supply, OU = 400V / 3~ / 50Hz AM1,2: WKF 180 Duo outdoor unit 3x16A (e.g. 5x1.5 mm...

  • Page 29: General Mountig Instructions

    The indoor and outdoor units must be connected to 4.2 General mountig instructions refrigerant piping with dimensions (external diam- These instructions are to be observed when eter) " (=9.52 mm) and " (=15.88 mm). At least installing the entire system. a two-wire control line must be routed between the The device should be delivered as near as modules.

  • Page 30: Setup, Installation Of The Indoor Unit

    REMKO WKF Duo 4.3 Setup, installation of the Wall breakthroughs indoor unit A wall opening of at least 100 mm diameter and 10 mm slope from the inside to the outside Installation or setting up the indoor unit must be created.

  • Page 31: Setup, Installation Of The Outdoor Unit

    Minimum clearances for the indoor unit If there is insufficient space under the device for the refrigerant piping, then the pre-cut recesses can be removed from the lower cover panel and the pipes guided through these openings. During installation, add about 20 cm to the expected snow depth to guarantee unimpeded intake and exhaust of outdoor air year round (Fig.
  • Page 32 REMKO WKF Duo Assessment level in accordance with TA noise Point of emissions Day in dB(A) Night in dB(A) Industrial areas Commercial areas Core areas, village areas and mixed zones General residential areas and small housing estates Exclusively residential areas Spa areas, hospitals and mental institutions Isolated noise peaks of short duration may not exceed 30 dB(A) during the day and 20 dB(A) at night.
  • Page 33 Minimum clearances of the outdoor units >= 250 >= 2000 >= 600 >= 300 Fig. 33: Minimum clearances for installation of an outdoor unit in mm Next to a wall, air outlet open to the front, flow In a niche, air outlet open to the front, flow restriction behind restriction behind and on both sides Next to a wall, air outlet toward the wall, flow...
  • Page 34 For the designations of 1,3,5,7,8 and 10, please refer to the legend for the Fig. 35 Dimensions for the strip foundation (all dimensions in mm) Dimen- WKF 120 Duo WKF 180 Duo sion Fig. 35: Condensate drainage, seepage of conden- sate and strip foundation (cross-section) Outdoor unit Condensate catch pan incl.

  • Page 35: Hydraulic Connection

    Safe drainage in the event of leakages Hydraulic connection The REMKO oil separator OA 2.2 fulfils the fol- lowing list of requirements from regional regula- tions and laws. A separate interpretation of nominal flow rate must be made for every system (see technical NOTICE! data).
  • Page 36 DIN standards - repeatedly, if necessary. Fig. 38: Shut-off valves Actual schemas for hydraulic integration can be found on the internet at www.remko.de Turning the thermometer heads serves to close or open the stop valves! The dial be brought into the desired position.
  • Page 37 A pressure loss of max. 80 kPa is made available by the customer. If the pressure losses on site exceed this, a separate storage tank, e.g. Remko KPS 300 must be used as a hydraulic compensator. Then a Remko heating circuit group unmixed, type HGU, and a mixed heating circuit...

  • Page 38: Cooling Of The Heat Pump

    REMKO WKF Duo Cooling of the Cooling without installed cable remote control in the room heat pump If no additional remote control apart from the heat pump is to be installed in the room, the regulation Description of the cooling installation...

  • Page 39: Corrosion Protection

    Corrosion protection Oxygen always plays a role if metal materials in a heating system corrode. pH values and the salt content also play a major role. The challenge: A licenced plumber who would like to be able to guarantee his cus- tomers a hot water heating system not at risk of corrosion from oxygen - without the use of chemicals - must pay attention to the following: Correct system design by the heating contractor/planner and...

  • Page 40: Connecting The Refrigeration System

    The outdoor- and the indoor units are con- nected with two copper pipes of refrigerator quality having the dimensions 3/8" = 9,52 mm and 5/8" = 15,88 mm (REMKO special acces- sory). Observe the permitted bending radius for the refrigerant pipes during installation in order to prevent kinks.

  • Page 41: Commissioning The Refrigeration System

    Connection to the unit NOTICE! Remove the cover panel from the outdoor unit if necessary. It may be necessary to remove Use only tools which are approved for use in the pre-cut bushings. an HVAC environment. (z. B.: bending pliers, Take off the factory-fitted protective caps.
  • Page 42 REMKO WKF Duo The time required to generate the vacuum is Function test of heating operating mode dependent on the final pressure pipe volume of the Remove the protective caps from the valves. indoor units and the length of the refrigerant piping.
  • Page 43 50 g/m m per circuit Examples DANGER! Additional fill quantity Basic Only refrigerant in a liquid state may be used to pipe length WKF 120/180 Duo fill the cooling cycle! 10 m 15 m 250 g 20 m 500 g CAUTION!

  • Page 44: Electrical Wiring

    REMKO WKF Duo Electrical wiring Commissioning Control panel and 9.1 Important Information 10.1 information on commissioning CAUTION! The Smart Control is used to operate and control You can find information on the electrical connec- the entire heating system. The Smart Control is tions of the indoor and outdoor unit, on the ter- operated from the operating unit.
  • Page 45 Overview of the controls Function of the keys The softkeys underneath the display fulfil different functions. The current function (e.g. Cancel, OK or Edit) appears on the display, right above the respective key. If nothing is shown on the display above a softkey, this key does not have a function assigned in the currently active mode.

  • Page 46: Care And Maintenance

    REMKO WKF Duo Care and Temporary shut-down maintenance The system may not be switched off at the mains power supply even if the heating system is not Regular care and maintenance serves to ensure used for heating purposes over an extended period trouble-free operation and long service-life of the (e.g.

  • Page 47: Troubleshooting And Customer Service

    Troubleshooting and customer service 13.1 Troubleshooting and customer service The unit has been manufactured using state-of-the-art production methods and has been tested several times to ensure that it works properly. However, in the event that malfunctions should occur, the unit should be checked against the following list.
  • Page 48 REMKO WKF Duo Outdoor unit error display Fig. 46: Display on WKF 120/180 Duo outdoor units 1: Display LED display Replac Display Green Yellow Meaning IM, AM F1/F2 twisted Indoor temperature probe defective/short-circuited (CN41) EEPROM error IM, AM Board communications errors. Incorrect com kit board...
  • Page 49 LED display Replac Display Green Yellow Meaning AC/DC power supply malfunction Phase error malfunction. A phase conductor is missing on the compressor Motherboard/inverter board current consumption probe malfunction Power supply (motherboard) probe malfunction EEPROM malfunction (read error) Motherboard EEPROM software malfunction IPM (IGBT module) malfunction BLDC fan 2 malfunction PFC overload malfunction (inverter board)
  • Page 50 REMKO WKF Duo Messages, warnings and errors displayed on the Smart Control Messages Description Details Storage tank 1 The temperature on one of the probes in storage tank 1 is higher than the 6000 max. temperature reached maximum permitted storage tank temperature.
  • Page 51 Description Details Upper application area The guaranteed application area of the external unit in heating mode is 8140 (heating) currently exceeded Lower application area The temperature has currently dropped below the guaranteed application 8141 (cooling) area of the external unit in cooling mode. Upper application area The guaranteed application area of the external unit in cooling mode is 8142...
  • Page 52 REMKO WKF Duo Description Details Open contact - circula- 7210 Open contact - drinking water circulation temperature probe tion temp. probe S05 Short circuit - circula- 7211 Short circuit - drinking water circulation temperature probe tion temp. probe S05 Open contact - inlet 7212 Open contact - inlet temp.

  • Page 53: Emergency-Heat Operation

    If you are using external heating cycle groups (pumps), HGU or HGM from Remko, you should also set the rotating wheel on the front of the pump to the "5 o'clock" position. Remove the servo motor of the three-way...

  • Page 54: Exploded View And Replacement Parts

    Exploded view and replacement parts 14.1 Exploded view of the WKF 120 Duo outdoor unit Fig. 48: Exploded view of the WKF 120 Duo outdoor unit We reserve the right to modify the dimens. and design as part of the ongoing techn. development process...
  • Page 55 Spare parts list for the WKF 120 Duo outdoor unit WKF 120 Duo Designation WKF 120 Duo 1402F8000 1404F8000 From serial number: 1402F9000 1404F9000 EDP number EDP number Compressor 1120450 1120450 Finned heat exchanger 1120451 1120451 Four-way changeover valve 1120452...

  • Page 56: Exploded View Of The Wkf 180 Duo Outdoor Unit

    REMKO WKF Duo 14.2 Exploded view of the WKF 180 Duo outdoor unit Fig. 49: Exploded view of the WKF 180 Duo outdoor unit We reserve the right to modify the dimensions and design as part of the ongoing technical development...
  • Page 57 Spare parts list for the WKF 180 Duo outdoor unit WKF 180 Duo Designation WKF 180 Duo 1301F8000 1405F8000 From serial number: 1301F9000 1405F9000 EDP number EDP number Compressor 1120470 1120470 Finned heat exchanger 1120471 1120471 Four-way changeover valve 1120472 1120472 Shut-off valves 1120473...

  • Page 58: Exploded View Of The Wkf 120/180 Duo Indoor Unit

    REMKO WKF Duo 14.3 Exploded view of the WKF 120/180 Duo indoor unit Fig. 50: Exploded view of the WKF 120/180 Duo indoor unit We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
  • Page 59 Spare parts list for the WKF 120/180 Duo indoor unit Designation WKF 120 Duo WKF 180 Duo Smart Serv 1401F8000 1300F8000 From serial number: EDP number EDP number Front panel / cover 1120901 1120901 1120902 1120902 Switching cabinet 1120915 1120915...

  • Page 60: General Terms

    REMKO WKF Duo General terms Energy supply company switching Certain energy supply companies offer special tar- Annual power input factor iffs for the operation of heat pumps. The annual power input factor indicates the power input (e.g. electrical energy) required in order to achieve a certain benefit (e.g.
  • Page 61 Limit temperature / bivalence point Seasonal performance factor Outdoor temperature where the secondary heating The seasonal performance factor relates to the appliance cuts in under bivalent operation. ratio of heat content delivered by the heat pump system to the supplied electrical energy in one year.

  • Page 62: Index

    REMKO WKF Duo Index Intended use............6 Adding refrigerant..........43 Air change frequency......... 23 Leak testing............41 Charging pump, motor protection...... 11 Minimum clearances of the outdoor units..33 Charging pump, pump-characteristic curves..11 Condensate drainage connection and safe Ordering spare parts......55, 57, 59 drainage.............
  • Page 64 SFlb Customer 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 & Co. KG reliable service.

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