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REMKO MWL Series Operating And Installation Instructions

Modular residential heat pump
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Operating and
installation instructions
REMKO MWL series
Modular residential heat pump
MWL 35
Instructions for Technicians
0264-2022-09 Edition 3, en_GB
Read the instructions prior to performing any task!

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Summary of Contents for REMKO MWL Series

  • Page 1 Operating and installation instructions REMKO MWL series Modular residential heat pump MWL 35 Instructions for Technicians 0264-2022-09 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 R410A 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....................... 5 1.6 Safety notes for the operator......................6 1.7 Safety notes for installation, maintenance and inspection..............
  • Page 4 REMKO MWL series 13.13 Unit representation of MTS 150 storage tank module............... 68 13.14 Spare parts for MTS 150 storage tank module................. 69 General terms............................70 Index..............................72...

  • Page 5: Safety And Usage Instructions

    Safety and usage instructions CAUTION! 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 with all applicable regional regulations. REMKO GmbH & Co. KG at the time when the Local regulations and laws such as Water units are purchased and commissioned.

  • 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 MWL series Technical data 2.1 Unit data Overall system Series MWL 35 Water/water heat pump incl. central System living space ventilation Heating, domestic hot water and Function ventilation Power supply V/Ph/Hz 400/3~/50 Max. current consumption 3.7/9.75 (heat pump/heat pump with auxiliary heating) Max.
  • Page 9 with W20/W35 kW/Hz/COP 3.15/45/6.75 with W20/W45 kW/Hz/COP 2.72/45/4.56 with W20/W55 kW/Hz/COP 2.39/45/3.28 Space heating energy efficiency W20/W35 / W55 218 / 148 Space heating energy efficiency W10/W35 / W55 266 / 177 Energy efficiency ratio A+++ Cooling cycle Hermetically sealed Refrigerant R410A Heat pump module/cooling cycle basic fill volume...
  • Page 10 REMKO MWL series MTS 150 drinking water storage module System Enamelled drinking water tank Function Domestic hot water heating Storage tank volume 149.7 Heat exchanger volume Heat exchanger area Controls / Logic 2-sensor technology Energy efficiency ratio Heat losses BEVB kWh/24h 1.29...
  • Page 11 MLG 70 ventilation unit module Model MLG 70 Function Moisture protection Central controlled living space venti- System lation with living space unit Regulation Demand-driven Automatic ventilation according to demand Series Summer Bypass Ventilation manager Smartphone app, EC-1, SC-Touch Power supply V/Ph/Hz 230/1~/50 Power consumption (Nominal/max.)

  • Page 12: Unit Dimensions

    REMKO MWL series 2.2 Unit dimensions Fig. 1: Dimensions MWL 35 Dimensions in mm MWL 35 2019 Dimensions in mm MLG 70 MWP 35 MTS 150 Electric module Information provided without guarantee! We reserve the right to make technical changes within the frame-...

  • Page 13: Unit Description And System Layout

    With the MWL 35 modular residential heat pump, you have opted for the unique “complete system heat pump with ventilation” from REMKO. Assem- bled as a multi-component system, the product is used for new builds and renovation - especially for residential construction in the multiple dwelling housing sector.
  • Page 14 REMKO MWL series MWP 35 heat pump module The heat pump module consists of a fully hermetic - and thus maintenance-free - complete refrigeration unit that contains all the necessary components of the cooling cycle. A quiet and fully modulating compressor (inverter technology) is used, which adapts its output to the heating requirements of the residential unit in an energy-saving manner.
  • Page 15 German Drinking Water Ordinance (see chapter 3 “The German Drinking Water Ordinance in connection with REMKO heat pumps”). For this reason, there is no need for an additional circulation line, which - in addition to further installation costs - would result in higher electricity costs and thermal radiation losses.
  • Page 16 REMKO MWL series MLG 70 ventilation unit module Every property that is renovated and newly built nowadays should be constructed as “airtight” as possible according to today's energy saving regulations. Consequently, modern building envelopes facilitate mould growth within the living spaces more easily if ventilation is inadequate, thus endangering the fabric of the building in the long term.
  • Page 17 φ Fig. 5: How the ventilation module works A: Ventilation module a: Outside air 1: Overflow air vents b: Outgoing air 2: Kitchen / Bathroom c: Exhaust air 3: Bedrooms and living rooms d: Supply air 4: Probe rel. humidity...
  • Page 18 5: Hot water Cold water on The REMKO MWL 35 modular heat pump is installed as centrally as possible in the utility room/kitchen tall cupboard within the residential unit so that the pipelines (hot water and ventilation) can be kept short,...
  • Page 19 (vapour diffusion-tight) source buffer tank (depending on the number and size of the residential units) at a constant 20 °C, for example. All REMKO heat pump series can be used for this purpose, depending on the power requirement. The buffer tank generally provides the usual dimensions that can be accommodated in any technical or heating room.
  • Page 20 User-defined hot water temperatures can be conveniently programmed via the heat pump manager. The following table shows an initial overview of which REMKO heat pumps can be used as source heat gen- erators - depending on the installed MWL 35.
  • Page 21 Heating application MWL 35 Q20/W40 Max. MWL 35 to be Source heat pump type area heating capacity connected WSP 80 6.00 WSP 110 8.00 WSP 140 10.00 WSP 180 17.00 WSP 140 Duo 20.00 WSP 180 Duo 34.00 SQW 400 Single 45.00 SQW 400 Duo 70.00...
  • Page 22 12: Hot water Heat generator source buffer tank 13: Cold water (here as an example: Air/water Source inlet REMKO LWM heat pump incl. circulating pump) Source return flow Source buffer 20 °C Heating cycle return flow PV current E-heater Heating cycle inlet...
  • Page 23 This kind of heat regulation is life. I.e.: inverter heat-pumps will run practically very inefficient. Heat regulation in the REMKO throughout the heating season. In all, the highest inverter heat pump is modulated to the actual need efficiency possible.
  • Page 24 Room air temperature in °C Fig. 10: Comfort zone REMKO GmbH & Co. KG herewith confirms that the supplied product corresponds to the UBA (German Environment Agency) positive list. The German Drinking Water Ordinance in conjunction with REMKO heat pumps Under certain prerequisites, drinking water systems fall under the German Drinking Water Ordinance.
  • Page 25 Source: Gerhardy (DVGW, Bonn) ) From the point of secure temperature containment to the point of extraction Advantages of the system No Drinking Water Ordinance as under 400 l and under 3 l pipe volume No annual sample collection Significantly lower installation costs as only two-wire system and one KW supply per residential unit No circulation, no hot water line Significantly lower inlet temperatures Lower operating costs...

  • Page 26: Assembly

    REMKO MWL series Assembly DANGER! 4.1 General installation notes All electrical installation work must be done by These instructions are to be observed when an electrician. installing the heat pump. The unit should be delivered as near as pos- sible to the site of installation in its original WARNING! packaging in order to avoid transport damage.
  • Page 27 Align the unit at the location using a spirit level and If necessary, insert the water meter at the position by adjusting the adjustable feet (5 mm Allen key). of the placeholder in front of the safety valve. Fig. 13 Fig.
  • Page 28 REMKO MWL series Now insert the drinking water storage module into Please ensure that the position of the storage tank the frame. allows for a problem-free screwed connection to the frame by exactly overlapping the steel eyelets and the rivet nut.
  • Page 29 If necessary, move the lever above the compart- ment of the heat pump module completely upwards. Now insert the heat pump module into the compartment. Fig. 25 The MWL has now reached the status as shown in figure Fig. 26. Fig.
  • Page 30 REMKO MWL series Now place the ventilation module on the fully low- ered lift panel and push it into the unit as far as it will go over the slide rails. Fig. 28 Now push the unit to its target position by pressing the lift panel back into its original position with both thumbs (exclusively).
  • Page 31 Connect the plugs to the connections on the elec- The MWL has now reached the status as shown in trical module according to the labelling. figure Fig. 36. Fig. 33 Attention: We recommend that you check the plug connectors carefully to ensure that they are in the correct position.
  • Page 32 REMKO MWL series Attach the side walls to the frame as shown in the figure using the screws supplied. Fig. 38 The MWL has now reached the status in accord- ance with the figure (photo). Fig. 40 Finally, fasten the side walls to the roof panel of the MWL with two additional screws.

  • Page 33: Hydraulic Connection

    Hydraulic connection Fig. 43: Hydraulic circuit diagram Source/heating room 6: Cold water II: 1. Residential unit a: Outside air III: Further residential units (congruent) b: Outgoing air A: Ventilation unit module c: Exhaust air B: Heat pump module d: Supply air C: Drinking water storage module e: Source inlet 1: Overflow air vents...
  • Page 34 REMKO MWL series NOTICE! Heat pump systems and components from REMKO must be filled and operated with deionised water (completely desalinated). We also recommend the use of the complete heating protection unit available from us. Full protection with glycol should be used in cooling systems. The system water should be tested each time the plant is serviced, but at least once a year.
  • Page 35 Pipework of the MWL frame 13 14 15 16 Fig. 44: Pipework of the MWL frame Ball valve rail connection incoming from source 13: TWS module connection  heating RTN Ball valve rail connection going to source 14: TWS module connection  hot water DRAIN Ball valve rail connection heating IN 15: TWS module connection ...

  • Page 36: Ventilation Connection

    REMKO MWL series Ventilation connection Ventilation connection template Wall / Rear end Wand / Rückseite Kaltwasser Cold water Warmwasser Hot water Kaltwasser Cold water Heating cycle Heating cycle Heizkreis Source Source Heizkreis Quelle Quelle (Return flow) (Return flow) (Eintritt) (Inlet)

  • Page 37: Corrosion Protection

    Corrosion protection Scope of application of VDI 2035: Domestic hot-water heating systems as per Oxygen always plays a role if metal materials in a DIN 4753 (sheet 1 only) heating system corrode. The pH value and the salt Water heating systems as per DIN EN 12828 content also play a major role.
  • Page 38 REMKO MWL series NOTICE! Heat pump systems and components from REMKO must be filled and operated with deionised water (completely desalinated). We also recommend the use of the complete heating protection unit available from us. Full protection with glycol should be used in cooling systems. The system water should be tested each time the plant is serviced, but at least once a year.

  • Page 39: Electrical Wiring

    Cable cross-sections must be provided by the customer! Note the type of routing and cable lengths! Smart Control Touch EC-1 controller Cable pull diagram MWL 35 Operation via REMKO SmartWeb portal (Internet) Internet home connection Sub-distribution (provided by the customer)
  • Page 40 REMKO MWL series Installation EC-1 controller, touch controller and external probe RJ45 / ETHERNET INTERFACE (rear end) Power supply (provided by the customer / 400V/3~) Power supply (EC-1 controller / 230V/1~) Power supply +12V (Smart Control Touch) Communication (EC-1 controller)

  • Page 41: Circuit Diagrams

    8.2 Circuit diagrams Switch cabinet top view Draufsicht Schaltkasten...
  • Page 42 REMKO MWL series -Pin Spannungsv. 230V Power supply 230V -S25 <- ST1.1 | K1 EVU Sperre Power utility block -> ST1.2 -Pout1 Spannungsv. 230V Power supply 230V -S26 -> ST3 | LED1 Boost Modus Boost Mode -> ST1.2 -Pout2 Spannungsv. 230V...
  • Page 43 -S20 Medium flow rate Volumenstrom -> ST5 -S21 Medium flow rate Source Volumenstr. Quelle -> ST5 -S46/S47 Outside air temp./%rh Außenlufttemp./%rF -> ST7 -S48/S49 Exhaust air temp./%rh Ablufttemp./%rF -> ST7 -S01 Supply air temperature Zulufttemperatur -> ST7 -S02 Outgoing air temperature Fortlufttemperatur ->...
  • Page 44 REMKO MWL series Kommunikation Communication LAN- / WLAN Adapter LAN - / WLAN adapter Smart-Control Bedienteil Smart Control controller RJ45 RJ45 Kommunikation Communication -> ST1.3 +12V Smart-Control Touch Smart Control Touch -SC/RS +12V Spaqnnungsv. 12V Power supply 12V -> X1...
  • Page 45 Spannungsv. 400V Spannungsv. 230V Power supply 400V Power supply 230V <- ST2 <- ST1.1 N(A13) Relaiskontakt Relay contact <- SMT N(Pin) Spannungsv. 230V Power supply 230V -> SMT -LED1 -LED1 L(Pout1) Spannungsv. OK Spannungsv. 230V Power supply OK Power supply 230V N(Pout1) LED Grün - 230V Green LED - 230V...
  • Page 46 REMKO MWL series ST1.1 -ST1 L(Pin) Spannungsv. 400V Power supply 400V L(EMI) <- SMT | K1 | EMI -ST1 PE(Pin) Spannungsv. 230V Power supply 230V <- SMT -ST1 L(A13) Spannungsv. EC-1 Power supply EC-1 N(A13) -> SMT ST1.2 -ST1 +12V Spannungsv.
  • Page 47 -S08 -ST2 Sensor PT1000 Sensor PT1000 Probe PT1000 Probe PT1000 Speichertemp. oben <- SMT Storage temp. top -S09 -ST2 Sensor PT1000 Sensor PT1000 Probe PT1000 Probe PT1000 Speichertemp. unten <- SMT Storage temp. bottom -EHZ Spannungsv. 230V STB 85°C Power supply 230V -ST3 Elektro Heizstab Electric heating element...
  • Page 48 REMKO MWL series -S03 -ST5 Rücklauftemperatur Rücklauftemperatur Return temperature Return temperature PT1000 <- SMT -ST5 Vorlauftemperatur Inlet temperature <- SMT -S05 -ST5 Eintrittstemp. Quelle Eintrittstemp. Quelle Entry temp. Source Entry temp. Source PT1000 <- SMT -ST5 Austrittstemp. Quelle Exit temp. Source <- SMT...
  • Page 49 -ST6 L(A11) Spannungsv. 230V Power supply 230V Lüfter Zuluft Fan supply air N(A11) <- SMT <- SMT Spannungsv. 230V Power supply 230V PE(A11) Lüfter Abluft Fan exhaust air Spannungsv. 230V Power supply 230V -S01 -ST7 Zulufttemperatur Zulufttemperatur Supply air temperature Supply air temperature PT1000 <- SMT...
  • Page 50 REMKO MWL series -EMI Spannungsv. 230V Power supply 230V <- ST4 -INV Communication Kommunikation <- ST5 Schalter (NC) Switch (NC) Hochdruck High pressure 400V Verdichter Compressor...

  • Page 51: Before Commissioning

    Electric heater The heating system is filled with DI water in EVU: Power utility accordance with VDI 2035. We recommend the Heating cycle addition of REMKO full heating protection (see Comm.: Communication the chapter “Corrosion protection”). NTC: Temperature probe Primary pump.: Primary pump...

  • Page 52: Commissioning

    REMKO MWL series Commissioning Care and maintenance Internet version Regular care and maintenance assure fault-free operation and long service life for the heat pump EC-1 version system. Touch display version The unit must be kept free of dirt, growth and other deposits.

  • Page 53: Troubleshooting And Customer Service

    Troubleshooting and customer service 12.1 General troubleshooting 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. Please inform your dealer if the unit is still not working correctly after all of the functional checks have been performed.

  • Page 54: Fault Messages

    REMKO MWL series 12.2 Fault messages Fault display – Malfunction codes Error ID Description Probe Possible causes/remedial measures The heat pump is disabled due to a dis- ID6008 able signal Fault in the external safety chain (high ID7036 pressure or low pressure switch)
  • Page 55 Fault display – Malfunction codes (continued) Error ID Description Probe Possible causes/remedial measures Probe defective. Replace probe. Initiate service call Probe not correctly plugged into circuit board. Initiate service call Probe error Ventilation module plug not plugged in ID7113 Outside air humidity correctly/defective.
  • Page 56 REMKO MWL series Fault display – Malfunction codes (continued) Error ID Description Probe Possible causes/remedial measures ID7204 Open contact - storage tank 1 top probe ID7205 Short circuit - storage tank 1 top probe ID7212 Open contact - inlet temperature probe...

  • Page 57: Exploded View Of The Unit And Spare Parts

    Exploded view of the unit and spare parts 13.1 Unit representation of the overall unit Fig. 48: Exploded view of the overall unit...

  • Page 58: Spare Parts For The Entire Unit

    REMKO MWL series 13.2 Spare parts for the entire unit Designation MWL 35 Frame MTS 150 storage tank module Heat pump module MWP 35 heating Heat pump module MWP 35 heating and cooling On request by providing the serial number...

  • Page 59: Unit Representation Of The Frame

    13.3 Unit representation of the frame Fig. 49: Exploded view of the frame 13.4 Spare parts for the frame Designation Frame Frame, complete On request by providing the serial number When ordering spare parts, please always state the EDP number, unit number and unit type (see name plate)!

  • Page 60: Unit Representation Of The Frame With Attachments

    REMKO MWL series 13.5 Unit representation of the frame with attachments 1.27 1.16 1.29 1.21 Fig. 50: Exploded view of the frame with attachments...

  • Page 61: Spare Parts For The Frame With Attachments

    13.6 Spare parts for the frame with attachments Designation Frame with attachments Frame, complete Inner connector DN 80 Inner connector reducer DN 100/80 Roof panel Ball valve retaining bar On request by providing the serial number Coupler 3/4" MWP 35 1.16 Plastic modular slide rail 1.21 Adjustable foot M10 1.27 Roof cover panel...

  • Page 62: Unit Representation Of Mwp 35 Heat Pump Module

    REMKO MWL series 13.7 Unit representation of MWP 35 heat pump module 3.18 3.17 3.13 3.15 3.21 3.31 3.30 3.33 3.16 3.22 3.14 3.12 3.20 3.19 Fig. 51: Exploded view of MWP 35 heat pump module...

  • Page 63: Spare Parts For Mwp 35 Heat Pump Module

    13.8 Spare parts for MWP 35 heat pump module Designation MWP 35 Heat pump module, complete Cover, top Cover (front panel) Housing side section, left Housing side section, right 3.12 Compressor 3.13 High pressure switch 3.14 E-valve 3.15 Circulation pump UPM 3S 15-40 130 mm 3.16 Flow sensor On request by providing the serial number 3.17 Mixing valve body...

  • Page 64: Unit Representation Of Mlg 70 Ventilation Module

    REMKO MWL series 13.9 Unit representation of MLG 70 ventilation module 5.15 5.12 Fig. 52: Exploded view of MLG 70 ventilation module...

  • Page 65: Spare Parts For Mlg 70 Ventilation Module

    13.10 Spare parts for MLG 70 ventilation module Designation MLG 70 Ventilation module, complete MLG 70 air filter Supply/exhaust air fan On request by providing the serial number EPP panel 5.12 Cross-flow heat exchanger 5.15 Filter cassette Spare parts not illustrated K-module fan PT 1000 temperature sensor Temperature/humidity sensor...

  • Page 66: Unit Representation Of Mel 35 Electric Module

    REMKO MWL series 13.11 Unit representation of MEL 35 electric module Fig. 53: Exploded view of MEL 35 electric module...

  • Page 67: Spare Parts For Mel 35 Electric Module

    13.12 Spare parts for MEL 35 electric module Designation MEL 35 Electric module, complete E-box cover Relays On request by providing the serial number E-box housing I/O module Spare parts not illustrated Carrying strap On request by providing the serial number When ordering spare parts, please always state the EDP number, unit number and unit type (see name plate)!

  • Page 68: Unit Representation Of Mts 150 Storage Tank Module

    REMKO MWL series 13.13 Unit representation of MTS 150 storage tank module Fig. 54: Exploded view of MTS 150 storage tank module...

  • Page 69: Spare Parts For Mts 150 Storage Tank Module

    13.14 Spare parts for MTS 150 storage tank module Designation MTS 150 Storage tank module, complete On request by providing the serial number Spare parts not illustrated Immersion sleeve Ball valve for filling/drainage False anode On request by providing the serial number PT 1000 temperature sensor Pre-assembly plug When ordering spare parts, please always state the EDP number,...

  • Page 70: General Terms

    REMKO MWL series General terms Energy supply company switching Certain energy supply companies offer special tar- All-in-one unit iffs for the operation of heat pumps. Design in which all refrigeration components are installed in one housing. No refrigeration work has to be carried out.
  • Page 71 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 72: Index

    REMKO MWL series Index Notes for installation ....6 Notes for maintenance ....6 Cable installation diagram .
  • Page 74 REMKO MWL series...
  • Page 76 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...

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