Operating and
installation instructions
Read the instructions prior to performing any task!
REMKO LWM series
LWM 80, LWM 110, LWM 150, LWM 110 Duo, LWM 150 Duo
Monobloc heat pumps
0205-2019-07 Edition 1, en_GB
Instructions for Technicians
Air/water system for heating and cooling
Page 1: ...ons Read the instructions prior to performing any task REMKO LWM series LWM 80 LWM 110 LWM 150 LWM 110 Duo LWM 150 Duo Monobloc heat pumps 0205 2019 07 Edition 1 en_GB Instructions for Technicians Air water system for heating and cooling ...
Page 2: ... these operating instructions carefully before commis sioning using this device These instructions are an integral part of the system and must always be kept near or on the device Subject to modifications No liability accepted for errors or mis prints ...
Page 3: ...2 5 Heat pump usable limits in monovalent operation 16 2 6 Pump characteristics and circulation pump pressure losses 16 2 7 Total sound power level 18 2 8 Characteristic curves 21 3 Unit description 31 4 Assembly 35 4 1 System layout 35 4 2 General installation notes 36 4 3 Set up and assembly of the heat pump 37 5 Hydraulic connection 42 6 Emergency heat operation 46 7 Cooling with room temperatu...
Page 4: ...hlight the magnitude of the danger in question 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 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 WARNING This combination...
Page 5: ...ions and laws as well as the Water Ecology Act WHG must be observed n Only install and store the units in rooms larger than 4 m2 With a failure to comply leaks may result in the room filling with a flammable mix ture The minimum room size of 4 m2 required for installation and storage pertains to the basic fill quantity of the unit This varies according to the installation type and total fill quant...
Page 6: ...livery and inform the shipper and your contractual partner For later complaints can not be guaranteed 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 packed for transport in environ mentally friendly m...
Page 7: ...5 W35 kW COP 2 6 2 95 4 47 2 82 6 5 2 97 with A7 W45 kW COP 6 05 3 96 7 87 3 88 10 09 3 89 with A 7 W45 kW COP 3 73 2 96 5 51 2 83 7 76 2 98 with A7 W55 kW COP 5 68 3 20 7 50 3 12 9 72 3 13 with A 7 W55 kW COP 3 64 2 49 5 42 2 36 7 67 2 51 with A10 W35 kW COP 6 80 5 43 8 55 5 31 10 60 5 32 Cooling capacity min max kW 1 1 8 9 3 3 11 9 5 5 14 0 Cooling capacity EER 2 with A35 W7 kW EER 4 90 2 81 7 6...
Page 8: ...n inlet return flow flat sealing Inches DN 1 1 4 32 Recommended diameter for copper piping to be used by the customer mm 28 Max sound power level in acc with DIN EN 12102 2008 09 and ISO 9614 2 dB A 54 56 58 Sound pressure level LpA 4 dB A 32 34 36 Tonality dB A 0 Sound power level sound pressure levelnight operations lowering mode dB A 47 25 49 27 51 29 Dimensions height width depth mm 1600 x 100...
Page 9: ...3 15 52 2 98 with A7 W55 kW COP 15 00 3 12 19 44 3 13 with A 7 W55 kW COP 10 84 2 36 15 34 2 51 with A10 W35 kW COP 17 10 5 31 21 20 5 32 Cooling capacity min max kW 3 3 23 8 5 5 28 0 Cooling capacity EER 2 with A35 W7 kW EER 15 26 2 65 24 40 2 65 with A35 W18 kW EER 16 48 3 71 25 54 3 81 with A27 W18 kW EER 21 42 4 00 36 08 4 11 Usable limits heating C 23 to 37 Service limits cooling C 15 to 45 I...
Page 10: ...r collector line diameter to be used by the customer per heat pump mm 42 Max sound power level in acc with DIN EN 12102 2008 09 and ISO 9614 2per heat pump dB A 56 58 Sound pressure level LpA 4 per heat pump dB A 34 36 Tonality dB A 0 Sound power level sound pressure levelnight operations lowering mode per heat pump dB A 49 27 51 29 Dimensions per heat pump height width depth mm 1600 x 1000 x 850 ...
Page 11: ...al heating power P rated kW 4 6 8 Room heating energy efficiency hs 35 C 55 C 182 160 187 167 169 164 Yearly energy consumption QHE 35 C 55 C 4 1326 1379 1668 1638 2550 2537 Colder condition 3 Series LWM 80 LWM 110 LWM 150 Energy efficiency ratio heating 35 C 55 C A A Nominal heating power P rated kW 7 9 13 Room heating energy efficiency hs 35 C 55 C 147 114 145 122 148 120 Yearly energy consumpti...
Page 12: ...heating power P rated kW 12 16 Room heating energy efficiency hs 35 C 55 C 187 167 169 164 Yearly energy consumption QHE 35 C 55 C 4 3336 3276 5100 5074 Colder condition 3 Series LWM 110 Duo LWM 150 Duo Energy efficiency ratio heating 35 C 55 C A A Nominal heating power P rated kW 18 26 Room heating energy efficiency hs 35 C 55 C 145 122 148 120 Yearly energy consumption QHE 35 C 55 C 4 10970 1455...
Page 13: ... 3 Unit dimensions of indoor units Unit dimensions 40 20 840 934 1600 845 985 40 180 110 140 180 130 734 700 A C B Fig 1 Unit dimensions all dimensions in mm A Front view B Bird s eye view C Side view 13 ...
Page 14: ...2 3 A B a b b a 0 31 71 111 76 181 221 199 153 0 57 106 166 113 262 377 Fig 2 Designations of the pipe connections A Rear view B Bird s eye view 1 Condensate drain 2 Inlet heat pump 1 1 4 3 Return flow heat pump 1 1 4 4 Cable inlets a Air inlet b Air outlet REMKO LWM series 14 ...
Page 15: ...Finned heat exchanger fan 6 Finned heat exchanger air outlet probe 7 Refrigerant probe suction side 8 Low pressure switch 9 Compressor 10 Refrigerant collector 11 Hot gas probe Suction gas probe 12 High pressure switch 45 bar 13 4 way changeover valve 14 Safety valve 15 Water outlet probe Heat pump inlet 16 Smart Serv 7 5 kW 17 Manual bleeder valve 18 Water outlet probe Heat pump return flow 19 Ca...
Page 16: ...e C B Heating water inlet temperature C Outside temperature C 23 23 7 37 37 Inlet temperature C 24 45 65 60 35 2 6 Pump characteristics and circulation pump pressure losses Fig 5 Capacity range of the UPMXL 25 125 p Power consumption kPa H Delivery height m Q Requirement l s or m3 h External control via analogue In PWM signal The tolerances of each curve are in acc with EN 1151 1 2006 REMKO LWM se...
Page 17: ...ead 2 per heat pump kPa 80 70 60 3 way changeover valve pressure loss 3 kPa 7 8 10 Spread K 5 5 5 1 Nominal volume flow rates according to DIN EN 14511 for efficient and safe operation do not fall below the nominal value 2 Residual head with pumps according to accessories without pressure loss of the 3 way changeover valve 3 REMKO changeover valve DN 25 The pipe dimensions from the heat pump to th...
Page 18: ...500 630 800 1000 Nominal max A7 W55 dBA 30 6 39 6 40 6 42 4 41 3 38 9 39 2 39 2 40 4 45 5 45 4 Night mode 60 A7 W55 dBA 30 9 29 8 33 8 34 1 31 5 31 9 31 6 31 4 31 2 36 2 42 7 Middle frequency Hz 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 A total Nominal max A7 W55 dBA 42 4 41 1 39 6 40 7 38 9 37 9 38 8 41 0 34 1 32 0 53 9 Night mode 60 A7 W55 dBA 30 6 33 4 31 6 31 9 32 1 30 2 31 8 33 4 28 ...
Page 19: ... 500 630 800 1000 Nominal max A7 W55 dBA 32 6 41 6 42 6 44 4 43 3 40 9 41 2 41 2 42 4 47 5 47 4 Night mode 60 A7 W55 dBA 32 9 31 8 35 8 36 1 33 5 33 9 33 6 33 4 33 2 38 2 44 7 Middle frequency Hz 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 A total Nominal max A7 W55 dBA 44 4 43 1 41 5 42 7 40 9 39 6 40 8 43 0 36 1 34 0 55 9 Night mode 60 A7 W55 dBA 32 6 35 4 33 6 33 9 34 1 32 2 33 8 35 4 30...
Page 20: ...30 800 1000 Nominal max A7 W55 dBA 34 6 43 6 44 6 46 4 45 2 42 9 43 2 43 2 44 4 49 5 49 4 Night mode 60 A7 W55 dBA 34 9 33 8 37 8 38 1 35 3 35 9 35 6 35 4 35 2 36 2 46 7 Middle frequency Hz 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000 A total Nominal max A7 W55 dBA 46 4 45 1 43 5 44 7 42 9 41 6 42 8 45 0 38 1 36 0 57 9 Night mode 60 A7 W55 dBA 34 6 37 4 35 6 35 9 36 1 34 2 35 8 37 4 32 0 30 ...
Page 21: ...inlet temperature of 35 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz Heating capacity LWM 80 at inlet temperature of 45 C 60 Hz A B n max C Fig 10 Heating capacity at inlet temperature of 45 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz 21 ...
Page 22: ... temperature of 55 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz COP LWM 80 at inlet temperature 35 C 45 C and 55 C A 35 C 45 C 55 C D E E E Fig 12 COP at inlet temperature 35 C 45 C and 55 C A Outside temperature C D COP E Inlet temperature C REMKO LWM series 22 ...
Page 23: ...ature of 35 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz Heating capacity LWM 110 at inlet temperature of 45 C A B n max 60 Hz C Fig 14 Heating capacity at inlet temperature of 45 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz 23 ...
Page 24: ... temperature of 55 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz COP LWM 110 at inlet temperature 35 C 45 C and 55 C A 35 C 45 C 55 C D E E E Fig 16 COP at inlet temperature 35 C 45 C and 55 C A Outside temperature C D COP E Inlet temperature C REMKO LWM series 24 ...
Page 25: ...ature of 35 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz Heating capacity LWM 150 at inlet temperature of 45 C A B n max 60 Hz C Fig 18 Heating capacity at inlet temperature of 45 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz 25 ...
Page 26: ... temperature of 55 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz COP LWM 150 at inlet temperature 35 C 45 C and 55 C A 35 C 45 C 55 C D E E E Fig 20 COP at inlet temperature 35 C 45 C and 55 C A Outside temperature C D COP E Inlet temperature C REMKO LWM series 26 ...
Page 27: ...ature of 35 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz Heating capacity LWM 110 Duo at inlet temperature of 45 C A B n max 60 Hz C Fig 22 Heating capacity at inlet temperature of 45 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz 27 ...
Page 28: ... temperature of 55 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz COP LWM 110 Duo at inlet temperature 35 C 45 C and 55 C A 35 C 45 C 55 C D E E E Fig 24 COP at inlet temperature 35 C 45 C and 55 C A Outside temperature C D COP E Inlet temperature C REMKO LWM series 28 ...
Page 29: ...ature of 35 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz Heating capacity LWM 150 Duo at inlet temperature of 45 C A B n max 60 Hz C Fig 26 Heating capacity at inlet temperature of 45 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz 29 ...
Page 30: ... temperature of 55 C A Outside temperature C B Heating capacity total thermal load kW C Rated frequency Hz COP LWM 150 Duo at inlet temperature 35 C 45 C and 55 C A 35 C 45 C 55 C D E E E Fig 28 COP at inlet temperature 35 C 45 C and 55 C A Outside temperature C D COP E Inlet temperature C REMKO LWM series 30 ...
Page 31: ...ed as standard Function of the heat pump A heat pump is a unit which makes use of a working medium to absorb ambient heat under low temperatures and transports this heat to a place where it can be of use for heating purposes Heat pumps work according to the same principles as a refrigerator The difference is that heat the by product of the refrigerator is the goal of the heat pump The main compone...
Page 32: ...dition for the preparation of domestic water per person amounts in acc with VDI 2067 0 2 kW Design example By way of a design example a residential home with a living area of 150 m2 and a heating require ment of approx 40 W m2 was selected A total of five persons live in the house The heat load amount to 6 0 kW Adding a drinking water allow ance of 0 2 kW results in a required heating capacity of ...
Page 33: ...ntrol system as needed The power control on conventional heat pumps provides only two states either ON full output or OFF no output The heat pump turns on below a specified temperature and turns off when this temperature is reached Heat regulation in the REMKO monobloc heat pump is modulated to the actual need and is adjusted to suit actual needs The electronics system has an integrated fre quency...
Page 34: ...ion of heat via cooled floors walls or ceiling surfaces In doing so water carrying pipes make the structural sec tions into thermally effective heat exchangers In order to achieve this the refrigerant temperature has to lie above the dew point in order to avoid the formation of condensation Dew point monitoring is required for this purpose We recommend dynamic cooling with fan convec tors in order...
Page 35: ...ixed cycle 2 Cold water 3 Hot water System layout for heat pump assembly LWM Duo Mannheim Außenfühler B1 C D 2 1 3 5 4 B2 E A1 A2 6 A1 A2 Heat pump 1 and 2 B1 Hot water storage tank B2 Buffer tank C External probe D Boiler wall heating unit optional E Smart Control Touch 1 Hot water 2 Cold water 3 Unmixed cycle 4 Mixed cycle 5 Mixed cycle 6 Collector line min DN 40 35 ...
Page 36: ...to place the heat pump as close as possible to the building to be heated observing the minimum distances n Establish all electrical wiring in accordance with the relevant DIN and VDE standards n The electrical power cables must always be fastened to the electrical terminals in the proper manner Otherwise there is a risk of damage n Ensure that no water carrying pipes pass through living or sleepin...
Page 37: ...allation Fig 35 n REMKO recommends always placing the unit on vibration dampers Vibration dampers pre vent the transmission of vibrations through the floor or walls n If there is insufficient space under the device for the lines then the pre cut recesses can be removed from the rear enclosure panel and the pipes guided through these openings n During installation add about 20 cm to the expected sn...
Page 38: ...ARNING Access to the unit is only permitted for author ised and trained persons If unauthorised per sons can approach the danger areas these areas must be identified with corresponding signs barriers etc n The external danger area surrounds the unit up to a distance of 2 m measured in all directions from the unit housing n The external danger area on site can differ as a result of the setup The sp...
Page 39: ...n both sides 4 Next to a covered wall air outlet open to the front flow restrictions behind and above Minimum distances during construction of multiple heat pumps 2 3 600 600 600 600 250 2000 2000 3000 600 250 1 Fig 37 Minimum distances during construction of multiple heat pumps in mm 1 Next to a wall air outlet toward the wall flow restriction to the front 2 In a niche air outlet open to the fron...
Page 40: ...s for the strip foundation bird s eye view 1 Heat pump 4 Reinforced strip foundation frost free 5 Gravel layer for seepage 9 Drainage pipe dimensioning the strip foundation all dimensions in mm Dime nsion LWM 80 LWM 110 LWM 150 A 1000 1000 1000 B 200 200 200 C 840 840 840 D 700 700 700 E 600 600 600 NOTICE Anti freeze protection In the case of heat pump systems in which frost free conditions are n...
Page 41: ...un off is unobstructed and ensure that the line is durably leak tight Pipe heater A pipe heater can be mounted on water carrying pipes to ensure frost protection in the pipes Install a pipe heater if there is a risk of frost When installing on the mounting bracket or on a foundation we recommend the installation of a pipe heater if the condensate drain or the inlet return flow heat pipes cannot be...
Page 42: ...e necessary several expansion vessels must be designed for the entire hydraulic system n The system pressure of the entire pipe network is to be matched to the hydraulic system and must be checked when the heat pump is turned off Also update the static pressure form supplied with the heat pump n As delivered the safety assembly consists of a pressure gauge a bleeding valve and a safety valve This ...
Page 43: ...or unit A can be used as a heating cycle pump and its speed is regulated according to requirements There is a pressure drop present on site see technical data If the pressure losses on site exceed this a separate storage tank e g REMKO KPS must be used as a hydraulic compensator Then a REMKO heating cycle group unmixed type HGU and two mixed heating cycle groups type HGM are available Moreover the...
Page 44: ...Control regulation switches all electrical components The highly efficient primary pump inside the heat pump is used as the circulation pump The combination buffer tank consists of an enamelled 300 l hot water tank B1 and a 100 l vapour diffusion tight buffer tank B2 which is integrated into the system The buffer tank is the hydraulic compensator if the pressure losses of the heating system are to...
Page 45: ...enerator An additional heat generator can be installed to cover peak loads The Smart Control regulation switches all electrical components The highly efficient primary pump inside the heat pump is used as the circulation pump The combination buffer tank consists of an enamelled 300 l hot water tank B1 and a 100 l vapour diffusion tight buffer tank B2 which is integrated into the system The buffer ...
Page 46: ...the expert level has been enabled var ious parameter levels are visible 4 Select the Settings level by touching the Settings icon 5 After selecting the Settings level select the Basic settings parameter 6 The System configuration parameter appears in the Basic settings level Select this icon by touching it 7 After selecting the System configuration level select the Heat pump parameter 8 Then deact...
Page 47: ...lves can mix at different inlet temperatures The water temperature in the pipes is main tained above the nominal dewpoint temperature by the controller in order to prevent the forma tion of condensation on the exposed pipes as well as those concealed under the plaster It is also recommended to install a 230 V dewpoint monitor with the associated pipe temperature sen sors to the feed pipes outside ...
Page 48: ...s in accordance with VDI 2035 Part 1 with regard to total hardness Total hardness dH subject to the specific system volume Total rated output in kW 20 l kW 20 l kW and 50 l kW 50 l kW to 50 kW 16 8 dH 11 2 dH 0 11 dH The following table provides the allowed oxygen content in connection with the salt content Reference values for the hot water in accordance with VDI 2035 Part 2 low salt saline Elect...
Page 49: ...he system Filling of heating system with completely deionised water Initial filling Year 2 Year 3 Year 4 Filled on System volume litres dH value pH value Conductivity µS cm Conditioning agent name and quantity Molybdenum content mg l Signature Technical changes and errors reserved Your heating contractor Perform annual control measurement VDI directive 2035 VDI directive 2035 Perform annual contro...
Page 50: ...m Once all the components have been connected and tested the system can be put into operation A functional check should be performed to verify its correct function and identify any unusual operating behaviour prior to handing it over to the operator This check is dependent on the installed indoor units The processes are specified in the operating manual for the indoor units being commissioned Func...
Page 51: ...rigerant DANGER Work on the cooling circuit may be undertaken only by trained specialist personnel technical specialist category I DANGER Only refrigerant in a liquid state may be used to fill the cooling cycle CAUTION Danger of injury from refrigerant Refrigerant degreases the skin on contact and may cause cold burns Therefore Wear chemical resistant protective gloves when undertaking any work in...
Page 52: ...VDI 2035 We recommend the addition of REMKO full heating protection see Ä Chapter 8 Water treatment on page 48 n A water or system temperature of min 20 C in the return flow must be ensured e g with a heating element emergency heating operation n The entire heating system is rinsed cleaned and de aerated incl hydraulic balancing n The heat pump is not released if an outside temperature under 10 C ...
Page 53: ...er tank must be filled Overview of the controls 1 2 3 4 Fig 44 Controls of the Smart Control Touch 1 Overview quick access 2 Information quick access 3 Settings quick access 4 Messages warnings information notes and errors Function display Unit operation is intuitive and self explanatory via the plain text display on the user interface on the touch display No buttons are required to adjust and cha...
Page 54: ...drainage of any condensate that accumulates must always be ensured NOTICE The heat pump may only be opened by trained specialist personnel 14 Temporary shutdown The system may not be switched off at the mains power supply even if the heating system is not used for heating purposes over an extended period e g holidays n The system is to be switched to Stand by mode for heating during temporary shut...
Page 55: ...eat pump starts up as required Operational temperature limits too low or too high Observe temperature ranges Nominal temperature exceeded incor rect operating mode The set point temperature has to be higher than the heat generator temperature check mode Disconnect the outdoor unit then establish the correct terminal sequence using the connection plan Re establish voltage to the outdoor unit Also m...
Page 56: ...1 Exploded view of the unit LWM 80 150 10 3 8 11 13 1 2 7 6 5 4 14 15 16 17 18 19 12 9 Fig 45 Exploded view drawing We reserve the right to modify the dimensions and design as part of the ongoing technical development process REMKO LWM series 56 ...
Page 57: ...High pressure switch 9 High pressure transducer 10 Compressor 11 EEV coil 12 Electronic expansion valve 13 Filter dryer 14 Cover RAL 9006 15 Aluminium finned grille Graphite finned grille Camura finned grille 16 Air outlet bottom cover plate RAL 7021 17 Side cover plate RAL 9006 18 Rear pipe inlet cover plate 19 Air intake cover plate To ensure the correct delivery of spare parts please always pro...
Page 58: ...rter control board control cable Pressure transducer control cable Temperature sensor Control board plug set Complete fan I O unit Smart Control Touch display surface mounting Smart Control Touch indoor unit display SD card Coding resistance To ensure the correct delivery of spare parts please always provide the unit type with its corresponding serial number see name plate REMKO LWM series 58 ...
Page 59: ...val of this ice is referred to as defrosting and is undertaken by supplying heat either regularly or as requirements dictate Air water heat pumps with circuit reversal are distin guished by their requirements based quick and energy efficient defrosting system Energy supply company switching Certain energy supply companies offer special tar iffs for the operation of heat pumps When switching off th...
Page 60: ...t deplete the ozone layer EC 2037 2000 and the Regulation on Cer tain Fluorinated Greenhouse Gases EC 842 2006 In addition a minimum of one annual service and inspection must be carried out as well as a sealing test for refrigerating plants with a refrigerant filling weight over 3 kg Seasonal performance factor The seasonal performance factor relates to the ratio of heat content delivered by the h...
Page 61: ... Ordering spare parts 57 P Passive cooling 34 Pipe heater 41 Propellant in accordance with Kyoto Protocol 8 10 R Refrigerant circuit diagram 15 Requirement for heat transmission 32 Room temperature probe 47 S Safe drainage in the event of leakages 41 Safety Dangers of failure to observe the safety notes 4 General 4 Identification of notes 4 Note for inspection work 5 Note for installation work 5 N...
Page 62: ...REMKO LWM series 62 ...
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Page 64: ...0 5232 606 260 E mail info remko de URL www remko de REMKO GmbH Co KG Klima und Wärmetechnik Im Seelenkamp 12 32791 Lage Hotline within Germany 49 0 5232 606 0 Hotline International 49 0 5232 606 130 We reserve the right to make technical changes and provide no guarantee as to the accuracy of this data ...
