LAK 14IMR - Heat pump DIMPLEX - Free user manual and instructions

USER MANUAL LAK 14IMR DIMPLEX

1.1 Symbols and markings

Particularly important information in these instructions ismarked with CAUTION! and NOTE. CAUTION!

Immediate danger to life or danger of severe personal injury orsignificant damage to property. NOTE

Risk of damage to property or minor personal injury orimportant information with no further risk of personal injuryor damage to property.

The operational reliability of the safety valve must be checkedat regular intervals. We recommend having an annual serviceinspection carried out by a qualified specialist company.The outflow from the safety valve should visibly flow into awaste water drain.The installer of the heating system is responsible for checkingwhether an additional expansion vessel is required.Operating the system in a sensible way can provide significantenergy savings. The heating water temperature should be aslow as required during heat pump operation. The planner of theheating system is responsible for determining the system tem-perature.When installing an underfloor heating system, a sensible valuefor the maximum flow and return temperature should be set onthe heat pump manager. The position of the temperature sen-sor is important in this regard.

This device is only intended for use as specified by the manu-facturer. Any other use beyond that intended by the manufac- turer is prohibited. This requires the user to abide by the rele- vant project planning documents. Please refrain fromtampering with or altering the device.

1.4 Legal regulations and guidelines

This heat pump is designed for use in a domestic environmentaccording to Article 1, Paragraph 2 k) of EU directive 2006/42/EU (machinery directive) and is thus subject to the require-ments of EU directive 2014/35/EU (low-voltage directive). It isthus also intended for use by non-professionals for heatingshops, offices and other similar working environments, agricul-tural establishments and hotels, guesthouses and other resi-dential buildings.The construction and design of the LWPS device complies withall relevant EU directives, DIN and VDE regulations (see CE de-claration of conformity).When connecting the LWPS device to the power supply, therelevant VDE, EN and IEC standards are to be fulfilled. Any fur-ther connection requirements stipulated by the mains supplynetwork operator must also be observed.The current valid regulations must be complied with when con-necting the heating system. The local regulations for the drink-ing water supply must also be complied with when connectingthe LWPS device to the drinking water supply.This unit can be used by children aged 8 and over and by per-sons with limited physical, sensory or mental aptitude or lack ofexperience and/or knowledge, providing they are supervised orhave been instructed in the safe use of the unit and understandthe associated potential dangers.Children must not play with the device. Cleaning and usermaintenance must not be carried out by children without su-pervision. CAUTION!

When operating or maintaining a heat pump, the legalrequirements of the country where the heat pump is operatedapply. Depending on the refrigerant quantity, the heat pumpmust be inspected for leaks at regular intervals by a certifiedtechnician, and these inspections must be recorded.More information can be found in the accompanying log book.www.glendimplex.de 452162.66.09a · FD 0108 EN-3 LAK 3IMR - LAK 14ITR English 2Purpose

2.1 Area of application

The indoor unit constitutes the interface between a reversibleheat pump and the heating system in the building. The indoorunit contains all hydraulic components required between heatgeneration and heat distribution with an unmixed heating cir-cuit.

2.2 General properties

Low installation effort Ready for use The infinitely adjustable operation of the circulating pump permits adjustment of the output according to need.on LAK 6IMR - LAK 14ITR: Switchable pipe heater (2 / 4 / 6 kW) for supplementaryheating.on LAK 3IMR: with 2 kW (fixed-setpoint) pipe heating 3 Scope of supply

Hydraulic components Unmixed heating circuit including controlled circulating pump 2nd heat generator, electrical pipe heater, heat output 2 / 4 / 6 kW, secured via safety temperature limiterSafety equipment: Safety valve, start-to-leak pressure 2.5 barRefrigerating equipment Heat exchanger refrigerant / heating water Connections for split line NOTE

External sensor is included with the outdoor unit as standard.Option for connecting an external sensor Cap. 8.5.2 on pag.

The cover must be removed to allow access to the inside of thedevice. The two screws on the bottom must be loosened for this. Thecover must then be removed to the top. CAUTION!

Before opening the device, ensure that all circuits aredisconnected from the power supply!After removing the cover, the electronics area is freely accessi- ble. The contact plate contains the supply connection terminals,heating contactors, connecting terminals for the connectingline to the heat pump and the heat pump manager.

3.3 Wärmepumpenmanager

The integrated heat pump manager is a convenient electronicregulating and control device. It controls and monitors the en-tire heating system based on the outdoor temperature, as wellas domestic hot water preparation and safety systems.The enclosed operating instructions describe the functionalprinciple and use of the heat pump manager.EN-4 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR 4 Outdoor unit

It is advisable to install the outdoor unit close to a wall, on a foundation separate from the building with a minimumclearance of 0.3 m on the intake side (Fig. 4.1 + Fig. 4.2). If a canopy is mounted to protect from direct sunlight, rain or snow it must not impede the heat exchange of the de-vice. In the case of a free-standing installation, the foundation is to be connected on the intake side, flush with the device.This will prevent snow from building up between the foun-dation and the evaporator. The minimum clearances (Fig. 4.1) indicated must be ad-hered to. When selecting an installation location, it should be en- sured where possible that persons are not going to be in-convenienced by the circulation of warm/cold air or bynoise emissions. The condensate tray offers various options for the conden- sate drain. In warmer regions, the condensate can drainfrom the device freely. In regions with longer periods offrost, a controlled condensate drain is required.Fig. 4.1Fig. 4.2 NOTE

The heat pump is not intended for use over 2000 metresabove sea level.Fig. 4.3Installation on wall brackets is not advisable, as this frequentlyleads to noise problems. If this type of installation is used, observe the following instruc-tions: Fit rubber buffers Take the weight of the outdoor unit into account Ensure that the wall bracket is no higher than 1 m abovethe ground Ensure that minimum clearances are adhered toFig. 4.4 0,2 m0,3 mHeat pumpCondensate drainFrost line 0,3 m0,2 m> 5%Heat pumpCondensate drainFrost line

4.1.1 Wall opening for split lines and

electric wires Please proceed as follows when laying split lines and elec- tric wires: Drill a 70 mm opening for the pipework using a core drill The opening for the pipework should be slightly inclined towards the outdoor unit, so that no rainwater can pene- trate the building.

4.1.2 Wall opening for condensate drain

4.1.3 Installation in coastal areas

The air-to-water heat pump must NOT be installed in areas where corrosive gases such as acids or alkaline gases can occur. NOTE

If the outdoor unit is installed in a coastal area, direct sea wind should be avoided. Case 1: If the outdoor unit is installed in a coastal area, direct sea wind should be avoided. Install the outdoor unit in the op- posite direction to the sea wind. Case 2: If the outdoor unit is installed in the direction of the sea wind, set up a wind guard to catch the sea wind. The wind guard must be robust enough to catch the sea wind (e.g. made from concrete). The height and width of the wind guard must correspond to at least 150% of the outdoor unit. A distance of at least 700 mm from the outdoor unit must be maintained to guarantee sufficient air flow. NOTE

If the outlined requirements cannot be complied with during installation in coastal areas, please contact Dimplex employees for more information on corrosion protection. NOTE

Dust or salt soiling on the heat exchanger should be regularly cleaned (at least once a year) with water. Wall 5~7mmIndoor unit Outdoor unit 5~7mm Wall Indoor unitOutdoor unit Sea wind Sea wind Wind protection Sea windEN-6 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR

4.2 Precautions in winter and in

seasonal winds In snowy areas or extremely cold locations, adequate pro-tective measures must be taken to guarantee that the unitcontinues functioning correctly. Install the outdoor unit so that snow cannot fall directly on the unit. If snow collects on the air inlet and freezes, errorscan occur. Install a cover in areas with snowfall. When installing the outdoor unit in areas where there is alot of snowfall, ensure the unit is installed at least as high asthe level of an average snowfall (average annual snowfall). If more than 100 mm of snow collects on the outdoor unit,the snow must be removed prior to operation. NOTE

The intake and outlet opening of the outdoor unit should notbe positioned against the wind if possible. 5 Assembly indoor unit

The unit should always be installed indoors on a level, smooth wall. Maintenance work can be carried out easily from the oper- ator side (a minimum clearance at the side is not required). Thiscan be ensured by maintaining a clearance of 1 m at the front.The indoor unit should be mounted at a height of approx.1.30 m. It must be installed in a room protected from frost andwith short pipe runs. NOTE

Setup and installation must be performed by an authorisedspecialist company.When installing the indoor unit, the load-bearing capacity of thewall should be checked. On account of the acoustics, measuresfor isolating possible vibrations should also be very carefullyplanned in advance.The following connections need to be established on the indoorunit: Flow / return of the heating system Safety valve outflow Power supply Supply voltage Split refrigerant pipe Condensate drain Expansion vessel connection (optional) NOTE

When removing the unit cover, it must be taken into accountthat the length of the connecting cable between the controlpanel in the unit cover and the controller on the contact plateis only 1.5 m. If the device cover can only be placed furtheraway than this when it has been removed, the plugconnection on the controller or on the control panel must firstbe disconnected.

5.2 Indoor unit fixing

The indoor unit is attached to the wall with the screws and dow-els (8 mm) included in the scope of supply. The following pro-cedure should be used: Mount the dowels for the top fastening eyelets. Screw the screw into the dowel so that the indoor unit can be mounted. Mount the indoor unit by the upper fastening eyelets. Mark the position of the side drill-holes. Unhook the indoor unit again Mount the dowels for the side drill holes.www.glendimplex.de 452162.66.09a · FD 0108 EN-7 LAK 3IMR - LAK 14ITR English

5.3 Heating system connection

The heating system connections on the indoor unit have a 1"flat sealing external thread. A spanner must be used to firmlygrip the transitions when making the connections.There is a hose sleeve on the safety valve for on-site connectionof a plastic hose. This should be fed into a siphon or outflow.Before connecting the heating water system to the heat pump,the heating system must be flushed to remove any impurities,residue from sealants, etc. Any accumulation of deposits in theliquefier may cause the heat pump to completely break down.Once the heat pump has been connected to the heating sys-tem, it must be filled, purged and pressure-tested. The following points must be observed when filling the system: Untreated filling water and make-up water must be of drinking water quality(colourless, clear, free of sediments) Filling water and make-up water must be pre-filtered (max. pore size 6 µm). Scale formation in domestic hot water heating systems cannotbe avoided, but in systems with flow temperatures below 60 °C,the problem can be disregarded. With high-temperature heatpumps and in particular with bivalent systems in the higher per-formance range (heat pump + boiler combination), flow tem-peratures of 60 °C and more can be achieved. The followingstandard values should therefore be adhered to with regard tothe filling and make-up water according to VDI 2035, sheet 1:The total hardness values can be found in the table.Fig. 5.1:Guideline values for filling and make-up water in accordance withVDI 2035For systems with an above-average specific system volume of50 l/kW, VDI 2035 recommends using fully demineralizedwater and a pH stabiliser to minimize the risk of corrosion in theheat pump and the heating system. CAUTION!

With fully demineralized water, it is important to ensure thatthe minimum permissible pH value of 7.5 (minimumpermissible value for copper) is complied with. Failure tocomply with this value can result in the heat pump beingdestroyed. NOTE

If the unit is connected to an existing hydraulic water circuit,the hydraulic pipes must be cleaned to remove residues andlimescale.The heating circuit must include a corresponding purging facil-ity, a fill and drain valve and a dirt trap on-site.It is also recommended to install a shut-off device in the returnbefore integration into the indoor unit is carried out. Minimum heating water flow rate The minimum heating water flow rate must be ensured in all op-erating states of the heating system with at least 50 l (buffertank with individual room control or underfloor heating systemwith 50 l minimum volume in open heating circuits). When theminimum heating water flow rate is undershot, the plate heatexchanger in the refrigeration circuit can freeze, which can leadto total loss of the heat pump. NOTE

The installation of a flow rate switch (DFS LAK or VSH LAK) isabsolutely necessary to ensure water flow before compressorstart and during defrosting.The nominal flow rate is specified depending on the max. flowtemperature in the device information and must be taken intoaccount during planning. With design temperatures below30 °C in the flow, the design must be based on the max. volumeflow with 5 K spread for A7/W35.The specified nominal flow rate (See “Device information” on page 18.) must be assured in all operating states. An installed flow rate switch is used only for switching off the heat pump inthe event of an unusual and abrupt drop in the heating waterflow rate and not to monitor and safeguard the nominal flowrate. Frost protection A method of manual drainage must be provided for heat pumpinternal components which are exposed to frost. The frost pro-tection function of the heat pump manager is active wheneverthe heat pump manager and the heat circulating pump areready for operation. The system has to be drained if the heatpump is taken out of service or if a power failure occurs. The hy-draulic network should be operated with suitable frost protec-tion if heat pump systems are implemented in buildings wherea power failure cannot be detected (vacation homes etc.). NOTE

Chemical treatment to protect from rust should be carried outby the installer.Total heat output in kWTotal alkaline earths in mol/m³ and/or mmol/lSpecific system volume (VDI 2035) in l/kW < 20 20 < 50 50 Total hardness in °dH < 50 2.0 16.8 11.2< 0.11

1. This value lies outside the permissible value for heat exchangers in heat

To ensure that commissioning is performed correctly, it shouldonly be carried out by an after-sales service technician author-ised by the manufacturer. This may be a condition for an addi-tional warranty (see "Warranty service").

The following items must be checked prior to commissioning: All of the indoor unit connections must be installed as de- scribed in Chapter 5.1. All of the outdoor unit connections must be installed as de- scribed in Chapter 7. All valves which could impair the proper flow of the heating water in the heating circuit must be open. The air intake and air outlet paths must be clear. The settings of the heat pump manager must be adapted to the heating system in accordance with the manager'soperating instructions. The heating water circuit must be completely filled and purged. Ensure that the condensate drain functions properly. The outflow from the heating water pressure relief valvemust also function correctly. Purging the heating system:Ensure that all heating circuits are open, purge the systemat the highest position and refill water if necessary (complywith static minimum pressure).

6.3 Commissioning procedure

The heat pump is commissioned via the heat pump manager.Settings should be made in compliance with the HPM's instruc-tions.The heating element of mono energy systems should be dis-connected during commissioning.At heating water temperatures below 7 °C, commissioning isnot possible. The water in the buffer tank must be heated withthe 2nd heat generator to at least 18 °C.The following procedure must then be followed to ensure prob-lem-free commissioning:1) Close all consumer circuits.2) Ensure that the heat pump has the correct water flow.3) Use the manager to select the automatic operating mode.4) In the special functions menu, start the "Commissioning"program.5) Wait until a return temperature of at least 25 °C has beenreached.6) Now slowly reopen the heating circuit valves in successionso that the heating water flow rate is constantly raised byslightly opening the respective heating circuit. The heat-ing water temperature in the buffer tank must not be al-lowed to drop below 20 °C during this process. This en-sures that the heat pump can be defrosted at any time.7) When all heating circuits are fully open and a return tem-perature of at least 18 °C is maintained, the commissioningis complete. CAUTION!

Operating the heat pump at low system temperatures maycause the heat pump to break down completely. After aprolonged power failure, the commissioning proceduredetailed above must be followed.Heat source temperatureMax. temperature spread between heating flow and return flow by to-20 °C -15 °C 4 K-14 °C -10 °C 5 K-9 °C -5 °C 6 K-4 °C 0 °C 7 K1 °C 5 °C 8 K 6 °C 10 °C 9 K 11 °C 15 °C 10 K 16 °C 20 °C 11 K 21 °C 25 °C 12 K 26 °C 30 °C 13 K 31 °C 35 °C 14 Kwww.glendimplex.de 452162.66.09a · FD 0108 EN-9 LAK 3IMR - LAK 14ITR English 7 Connecting the pipework and cables to the outdoor unit This chapter describes the refrigerant pipe connections and the electrical cable connections on the outdoor unit.

Work on the system must only be performed by authorisedand qualified after-sales service technicians!Certain requirements with regard to pipe length and rise mustbe complied with when installing refrigerant pipes. Once all re-quirements have been fulfilled, certain preparations must bemade.Once these are complete, the connecting pipe from the out-door unit to the indoor unit can be connected.

7.1.1 Requirements for pipe length

and rise The standard pipe length is 7.5 m. Up to a length of 15 m, noadditional refrigerant filling is required. For pipe lengths over 15m, the system must be filled with additional refrigerant in ac-cordance with the table.*Example: When installing the 14 kW model at a distance of50 m, 2100 g refrigerant must be added according to the fol-lowing calculation: (50-15) x 60 g = 2100 g NOTE

If the indoor unit is mounted 4 or more metres higher than theoutdoor unit, a cooling technology specialist must perform aseparate check to ensure that the devices for conveying theoil up and down the pipes have been installed correctly in thehot gas pipe. NOTE

The rated output of the device corresponds to the standardpipe length and the maximum possible length. CAUTION!

Incorrect filling with refrigerant could lead to faults duringoperation.1) Production operation (see model name label)2) Installation operation (where possible, attach alongside themaintenance connections for adding or removing refriger- ant)

3) Total filling (1, + 2,)

7.1.2 Preparation for pipework

The preparation of the pipework takes place in five steps. Onemain cause of refrigerant leaks is incorrect flanging. Flangingmust be carried out carefully and according to the followingsteps. Step 1: Cutting pipes and cables Use the installation kit for pipework or the pipes purchased from your local dealer. Measure the distance between the indoor and outdoorunit. Cut the pipes slightly longer than the measured distance. Step 2: Removing burrs Remove all burrs from the interface of the pipework. Hold the pipe end downwards so that no burrs can fall into the pipe. Step 3: Inserting screw nuts Remove the screw nuts on the indoor and outdoor unit. Insert the screw nuts into the deburred pipe. No nuts can be inserted into the pipe after flanging.ModelPipe size (mm)(diameter: )Length A (m) Rise B (m)*additionalrefrigerant(g/m) Gas Liquid Normal Min. Max. Normal Max. 3 kW

Outdoor unitIndoor unit

Outdoor unitIndoor unit

Tilted Uneven Raw Pipe Reamer Hold facing downwards Screw nut Copper pipeEN-10 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR Step 4: Flanging Flanging must be carried out as follows with a flanging tool for R-410A refrigerant as shown in the figure. Hold the copper pipe steady in a mould with the dimen- sions shown in the bottom table. Step 5: Checks Compare the flanging with the figure on the right. If the flanging is visibly damaged, cut the relevant section off and repeat the flanging.

7.1.3 Pipe connections on the indoor unit

The pipe connection on the indoor unit takes place in two steps.Read the following instructions carefully. Step 1: Initial fastening Align the centre of the pipe and tighten the screw nuts by hand. Step 2: Fastening Tighten the screw nuts with a spanner. Torques

7.1.4 Pipe connections on the outdoor unit

The pipe connection on the outdoor unit takes place in steps. Step 1: Determining the direction in which the pipes are to run The pipes can be connected in four directionsExternal diameter "A"mm Inch mm9.52 3/8 1.5 ~ 1.715.88 5/8 1.6 ~ 1.8 Rail Copper pipe Clamp Red arrow marking Cone Bracket Handle Rail "A" SlantingThe inside shines with no scratchesSmooth all roundThe same length all round Damaged surface CrackedUneven thickness= Incorrect flanging = External diameter Torquemm Inch Nm9.52 3/8 34 - 4215.88 5/8 65 - 81 Pipework of the indoor system Screw nut Pipework Torque spanners Pipework of the indoor system Open-end spanner (fixed) Connection pipe Screw nut To the rear To the side To the rear To the front To the side To the rearwww.glendimplex.de 452162.66.09a · FD 0108 EN-11 LAK 3IMR - LAK 14ITR English Step 2: Fastening Align the centre of the pipe and tighten the screw nuts byhand. Tighten the screw nuts with a spanner until they click. Torques. Step 3: Preventing foreign bodies from entering the unit Seal all pipe openings well with putty or a different type of insulation (available separately). If insects or small animals enter the outdoor unit, they can cause short circuits in the control cabinet. Lay the pipes. To do this, cover the coupling device of the indoor unit with insulation and fix in place with two adhe-sive tapes. Adequate heat insulation is extremely important. CAUTION!

Never open the valves of the outdoor component.Carry out the work from Cap. 7.2 on pag. 11 and Cap. 7.3 on pag. 12 first of all.

7.2 Electrical connections

The DIP switches on the circuit boards in the outdoor unithave no function. The positions of the DIP switches mustremain in their factory default and must not be changed!Two cables must be connected on the outdoor unit: A 'mains cable' and a 'data cable'Both cables must be laid between the indoor and outdoor unit.The mains cable is used to supply the outdoor unit with powerand the data cable is for communication between the outdoorand indoor component. The VDE directives and regulations andlocal conditions must be taken into account in the design andinstallation of the two cables.The indoor component already contains a safeguard elementfor the outdoor component. The safeguarding of the entire heatpump must also take place externally. For LAK 3IMR, LAK 6IMR, LAK 9IMR, LAK 14IMR: The mains cable on the outdoor unit must be three-core andmust be connected to the L / N / PE (power supply) terminals. (See Cap. 3.2 on page XII; Cap. 3.5 on page XV and Cap. 3.8 on page XVIII) For LAK 14ITR The mains cable on the outdoor unit must be 5-core and mustbe connected to the R / S / T / N / PE terminals (see Cap. 3.5 onpage XV)If no connection lugs are available, proceed as follows. No cables with different thicknesses may be connected tothe connecting terminal. (one of the cables may comeloose during strong heat development.) Multiple cables of the same thickness must be connectedas shown in the figure.A shielded 2-core cable must be used as a data cable. The data cable is connected to the terminals (Bus_A(+) /Bus_B(-)) of the gateway circuit board (small circuit board in theoutdoor component) and to the heat pump manager (+/-) in theindoor component (see Appendix, Connection diagram Chap.2.5).Outdoor unitContinuouslyContinuously Pipework of the air sidePipework of the liquid side Putty or insulation (available separately) Drain hose (if required) Connection cable Connection pipe Round connection lugs Mains cableEN-12 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR

Two supply cables must be connected to the indoor unit: The power supply to the heat pump and the control voltage for the integrated heat pump manager (see Appendix Cap. 3.5 on pag. XV). (Load: 3~; 1x 5-core; control: 1~; 1x three-core) The VDE di- rectives and regulations and local conditions must be taken into account in the design and installation of the cables. For LAK 3IMR, LAK 6IMR, LAK 9IMR On these heat pumps, the power supply can be provided by load distribution using two separate supply cables (2x 1~/N/PE; 230 VAC; 50 Hz). Otherwise, the power supply is always pro- vided using one cable (3~/N/PE; 400 VAC; 50 Hz). For LAK 14IMR On this heat pump, the power supply can only be provided by load distribution using two separate supply cables (2x 1~/N/PE; 230 VAC; 50 Hz). A power supply using a single cable is not per- mitted For LAK 14ITR On this heat pump, the power supply can be provided by load distribution using two separate supply cables (2x 3~/N/PE; 400 VAC; 50 Hz). Otherwise, the power supply is always provided using one cable (3~/N/PE; 400 VAC; 50 Hz). NOTE

The positions of the copper link cables in the terminals for the power supply must be complied with. The copper links may need to be correctly connected, contrary to the factory default configuration (see Cap. 3.2 on page XII, Cap. 3.5 on page XV, or Cap. 3.8 on page XVIII). The supply cable for the output section of the heat pump (up to 5-core) is fed from the electricity meter of the heat pump via the utility blocking contactor (if required) into the heat pump (see heat pump operating instructions for supply voltage). An all-pole disconnecting device with a contact gap of at least 3 mm (e.g. utility blocking contactor or power contactor) and an all-pole circuit breaker with common tripping for all external conductors must be installed in the power supply for the heat pump (tripping current and characteristic in compliance with the device information). The connection takes place on X1. The supply cable (1~L/N/PE~230 V, 50 Hz) for the heat pump manager must have a continuous voltage. For this reason, it should be tapped upstream from the utility blocking contactor or be connected to the household current, because otherwise important protection functions could be lost during a utility block. The correct control voltage must be ensured according to the general information leaflet/rating plate. The connection takes place on X2. The utility blocking contactor (K22) with 3 main contacts (1/3/ 5 // 2/4/6) and an auxiliary contact (NO contact 13/14) should be dimensioned according to the heat pump output and must be supplied by the customer. The NO contact of the utility blocking contactor (13/14) is looped from terminal strip X3/ GND to connector terminal N1-J7/DI3. CAUTION! Extra-low voltage! For detailed instructions on how to connect the external com- ponents as well as how the heat pump manager functions, please refer to the device connection diagram and the operat- ing instructions supplied with the heat pump manager. The 2nd heat generator is connected with a 6 kW heat output in factory default. To reduce the output to 4 kW or 2 kW, one or both of the two copper link cables must be removed from ter- minal X7 (see circuit diagram). For detailed information, see circuit diagrams in the attach- ment. The electric cables can be fed into the unit from below (in the refrigeration connection area).

Once the pipes and electric cables have been connected, the pipes must be bent and a number of tests carried out. The leak test must be carried out with particular care, as a refrigerant leak results in a direct reduction in output. Leaks are also difficult to identify once the installation is com- plete.

Bend the pipe by covering the connection cable and refrigerant pipe (between the indoor and outdoor unit) with insulation and fix the insulation in place with two adhesive tapes.

1) Fix the refrigerant pipe, mains cable and connection cable

with adhesive tape from bottom to top. Fix the bound pipe- work along the wall.

2) Form a siphon to prevent water from entering the chamber

and electrical components.

3) Fix the pipework to the wall using clamps or similar.

Wrap the pipework in adhesive tape

1) Fix the pipes, mains cable and connection cable with adhe-

sive tape from bottom to top. If they are fixed from top to bottom, rain could enter into the pipes or cables.

2) Fix the bound pipework along the external wall with clamps

3) A siphon prevents water from entering the electrics.

Drain hose (not used)Adhesive tape (narrow) Pipe Wrapped in adhesive tape (wide)www.glendimplex.de 452162.66.09a · FD 0108 EN-13 LAK 3IMR - LAK 14ITR English

7.4 Leak test and evacuation

Air and moisture in the cooling system have unwanted effects as outlined below.

1) The pressure in the system increases.

2) The operating current increases.

3) The cooling (or heating) output falls.

4) Moisture in the cooling circuit can freeze and block the

5) Water can cause corrosion on parts in the cooling

system. This means that the indoor and outdoor unit, as well as the con- nection pipe, must be checked for leaks and pumped empty to remove any non-condensable gases and moisture from the system.

Ensure that each pipe (liquid and air side) between the indoor and outdoor unit is connected correctly and the wiring for the test operation has been carried out. Remove the maintenance valve caps from both the gas and liquid side of the outdoor unit. Ensure that both maintenance valves on the liquid and air side of the outdoor unit are closed at this point.

Connect the multi-way valve (with pressure gauges) and dry nitrogen gas cylinder with the filling hoses on this maintenance connection. NOTE

A multi-way valve must be used for the leak test. If no multi- way valve is available, an isolating valve can also be used. The "Hi" lever on the 3-way valve must be closed at all times. The system may be charged with max. 3.0 MPa dry nitro- gen. The cylinder valve must be closed with a pressure of

3.0 MPa. The next step is to search for leaks with liquid

In order to prevent liquid nitrogen from entering the cooling system, the top side of the gas cylinder must be higher than the bottom side when pressure is building in the system.

1) The gas cylinder is usually used in an upright position.

Check all pipe connections (indoor and outdoor) and main- tenance valves of the air and liquid side for leaks. Bubbles indicate a leak. The soap must be wiped away with a clean cloth.

2) If no leaks are identified in the system, reduce the nitrogen

pressure by removing the filling hose connection from the gas cylinder. When the system pressure is normal again, the hose must be removed from the gas cylinder.

1) Connect the end of the filling hose mentioned above to the

vacuum pump to pump the pipework and indoor unit empty. The levers "Lo" and "Hi" on the multi-way valve must be open. Start the vacuum pump. The duration of the pumping empty process varies with different lengths of the pipework and the pump output. The following table shows the time required for pumping empty.

2) Close the levers "Lo" and "Hi" on the multi-way valve at the

desired vacuum pressure and switch off the vacuum pump. Finally

1) Open the valve handle on the liquid side completely in an

anti-clockwise direction with a maintenance valve key.

2) Open the handle of the valve on the gas side completely in

an anti-clockwise direction.

3) Loosen the filling hose connected to the air side slightly

from the maintenance connection to reduce the pressure, then remove the hose.

4) Tighten the screw nuts and caps on the air side mainte-

nance connection again with an adjustment key. This pro- cess is very important to prevent leaks on the system.

5) Position the valve caps on the air and liquid side mainte-

nance valves again and tighten. The purging with the vac- uum pump is complete. The split-heat pump is now ready for test operation. A siphon prevents water from entering the electricsAdhesive tapeDrain hose (not used)Refrigerant pipesConnection cableMains cableKlebebandKlebebandAdhesive tape opening around opening around the pipings with the pipings with gum type sealer. gum type sealer. Seal small gaps around the pipe, e.g. with silicon. Siphon TrapSiphon Seal a small opening Seal a small opening around the pipings around the pipings with gum type sealer. with gum type sealer. Seal small gaps around the pipe, e.g. with silicon. Time required for pumping empty with a 0.11m_/hour vacuum pump Length of the pipework less than 10 m Length of the pipework more than 10 m 30 min. or longer 60 min. or longer

0.6 mbar or lessEN-14 452162.66.09a · FD 0108 www.glendimplex.de

English LAK 3IMR - LAK 14ITR 8 Test points, maintenance and troubleshooting If no faults have occurred here by this point, the unit can nowbe operated and you can enjoy the benefits of the LWPS splitheat pump.Before commissioning the unit, run through the test points out-lined in this chapter.You will also find instructions for maintenance and trouble-shooting here.

8.1 Checklist prior to commissioning

Before opening the unit, ensure that all electric circuits areisolated from the power supply. Pos. Category Components Test point

CurrentField wiring All switches with contacts with different polarities should be connected se- curely in accordance with the specified directives or laws. Cable connections should only by made by trained specialist personnel. Cable connections and electrical components available separately should comply with European and local directives. Cable connections should be made in accordance with the circuit diagram pro- vided with this unit.2 Circuit breakers A circuit breaker (earth leakage breaker) with 30 mA should be installed. The circuit breaker in the control cabinet of the indoor unit should be switched on before the unit is commissioned.3Earthing An earthing wire should be connected. Never connect an earthing wire to a gas pipe, water piping, a metal object of the building, a surge protection socket or similar.4 Power supply unit Use a separate mains cable. Cable connections of the terminal panel Connections on the terminal panel (in the control cabinet of the indoor unit) should be fixed in place securely enough. Water pressureFilling pressure After filling with water, the pressure gauge should show a pressure of 1.0 to 1.5 bar. The maximum pressure should not exceed 3.0 bar.7 Purging While filling with water, the system should be purged via the purging hole. If no water comes out after pressing on the tip (on the top side of the opening), the purging process is not yet complete. If the system has been purged optimally, water sprays out like a fountain when pressing on the tip. Take care when testing the purging. Water could spray on your clothes.8 Isolating valve The isolating valves (on-site) should be open.

Installing the unitMaintenance of compo-nents There should be no visibly damaged components in the indoor unit. 12 Refrigerant leak Refrigerant leaks reduce the output of the unit. In the event of leaks, please in- form an authorised after-sales service partner.www.glendimplex.de 452162.66.09a · FD 0108 EN-15 LAK 3IMR - LAK 14ITR English

To maintain an optimal output on the LWPS split heat pump,regular checks and maintenance work should be carried out onthe unit.It is advisable to work through the following checklist at leastonce a year. CAUTION!

Before opening the unit, ensure that all electric circuits areisolated from the power supply.

If the LWPS split heat pump is experiencing problems duringoperation or is not working at all, check the following points. CAUTION!

Before opening the unit, ensure that all electric circuits areisolated from the power supply.

8.3.1 Removing faults during operation

Pos. Category Components Test point

WaterWater pressure In normal operation, the pressure gauge should show a pressure of 2.0 to 2.5 bar. If the pressure is under 0.3 bar, water should be added. Dirt trap (water filter) Close the relevant isolating valves and remove the dirt trap. Clean the dirt trap Water may flow out when dismantling the dirt trap. 4CurrentCable connections of theterminal panel Check the terminal panel for loose or faulty connections. Pos. Fault Cause Solution

Insufficient heatingor cooling.Incorrect setting of thetarget temperature. Check the setting of the heating curve on the heat pump manager Insufficientwater filling. Check the pressure gauge and add water until the pressure gauge shows a pressure of 2.0 to 2.5 bar.Water flow is low. Check whether the dirt trap is heavily soiled. If so, the dirt trap must be cleaned. Check whether the pressure indicator shows a pressure of at least 0.3 bar. Check whether the water piping is blocked by soiling or limescale deposits.

The outdoor unit isnot working, despite correctpower supply(information on thecontrol panel).Temperature on thewater inlet is too high. If there is a temperature above 55 °C on the water inlet, the outdoor unit is switched off to protect the system.Temperature on thewater inlet is too low. If there is a temperature below 5 °C on the water inlet, the outdoor unit is switched off to protect the system. Wait until the temperature on the water inlet has been increased by the indoor unit. Noises from thewater pumpPurging has not beencompleted. Open the protective cap of the purging and add water until the pressure gauge shows a pressure of 2.0 to 2.5 bar. If no water comes out after pressing on the tip (on the top side of the opening), the purging process is not yet complete. If the system has been purged opti- mally, water sprays out like a fountain when pressing on the tip.Water pressure is low. Check whether the pressure indicator shows a pressure of at least 0.3 bar. Check whether the equalising tank and pressure gauge are working correctly.

Water is drained offthrough thedrain hose.Too much water has beenadded. Open the lever of the safety valve and drain off more water until the pressure gauge shows a pressure of 2.0 to 2.5 bar.Equalising tank is dam-aged. Replace the equalising tank. Domestic water is notheatedThermal circuit breaker of the flange heater or pipe heater has been trig-gered Open the front cover of the indoor component and press the Reset button Domestic water heatingwas deactivated. Check the settings on the heat pump manager on the indoor unit.EN-16 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR

8.4 Characteristic curve temperature sensor outdoor unit

8.5 Characteristic curve temperature sensor indoor unit

8.5.1 Sensor characteristic curves

The temperature sensors to be connected to the heat pump manager must correspond to the sensor characteristic curve il- lustrated in Fig.8.1 on pag. 16. The only exception is the out- door temperature sensor included in the scope of supply of the heat pump (see Fig.8.2 on pag. 16) Fig. 8.1: Sensor characteristic curve NTC-10 Fig. 8.2: Sensor characteristic curve NTC-2 according to DIN 44574 Outdoor temperature sensor

8.5.2 Mounting of the external outside

temperature sensor (optional) With outside temperature based control, the connection of an outside temperature sensor (FG 3115) is recommended for mounting on the north side of the building, as incorrect values would otherwise be recorded for the heating curve calculation (e.g. during intensive sun radiation). The external sensor (FG3115) is connected to the heat pump manager and activated by after-sales service during commis- sioning. With room temperature based control via the smart RTC, no ad- ditional outside temperature sensor is required.

To protect the cover, avoid leaning anything against the deviceor putting objects on the device. External parts can be wipedclean with a damp cloth and domestic cleaner. CAUTION!

Never use cleaning agents containing sand, soda, acid orchloride, as these can damage the surfaces.

9.2 Cleaning the heating system

The ingress of oxygen into the heating water circuit may resultin the formation of oxidation products (rust), particularly if steelcomponents are used. These enter the heating system via thevalves, the circulating pumps and/or plastic pipes. A diffusion-resistant installation is therefore essential, especially with re-gard to the piping of underfloor heating systems.Residue from lubricants and sealants may also contaminate theheating water.In the event of severe contamination leading to a reduction inthe performance of the liquefier in the heat pump, the systemmust be cleaned by a heating technician.Based on current information, we recommend using a 5 %phosphoric acid solution for cleaning purposes. However, ifcleaning needs to be performed more frequently, a 5 % formicacid solution should be used.In both cases, the cleaning fluid should be at room tempera-ture. We recommend flushing the heat exchanger in the direc-tion opposite to the normal flow direction.To prevent acidic cleaning agents from entering the heatingsystem circuit, we recommend connecting the flushing devicedirectly to the flow and return of the liquefier of the heat pump.It is then important that the system be thoroughly flushed usingappropriate neutralising agents to prevent any damage frombeing caused by cleaning agent residue remaining in the sys- tem. Acids must be used with care, and the regulations of the em-ployers’ liability insurance associations adhered to.The instructions of the cleaning agent manufacturer must al-ways be observed. 10 Faults / troubleshooting LAiC devices are high-quality products and should work with-out problems. Should a fault occur, however, it will be indicatedon the heat pump manager display. In this case, consult the"Faults and troubleshooting" page in the operating instructionsof the heat pump manager. If you cannot correct the fault your-self, please contact your after-sales service technician. CAUTION!

Before opening the device, ensure that all circuits aredisconnected from the power supply!After disconnecting the power supply, always wait for at least 5minutes to allow stored electric charges to dissipate. CAUTION!

Work on the system must only be performed by authorisedand qualified after-sales service technicians! 11 Decommissioning / disposal Before dismantling the LWPS device, disconnect it from thepower source and close all valves. The heat pump must be dis-mantled by trained personnel. Observe all environmental re-quirements regarding the recovery, recycling and disposal ofmaterials and components in accordance with all applicablestandards.EN-18 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR 12 Device information 1 Type and order code LAK 3IMR LAK 6IMR LAK 9IMR LAK 14IMR LAK 14ITR 2 Design Heat source Air Air Air Air Air

2.4 Installation location

Indoors / out- doors Indoors / out- doors Indoors / out- doors Indoors / out- doors Indoors / out- doors

3.2 Cooling water flow °C 7 to 25 7 to 25 7 to 25 7 to 25 7 to 25

3.3 Air (heating) °C -20 to +30 -20 to +30 -20 to +30 -20 to +30 -20 to +30

3.4 Air (cooling) °C +10 to +43 +10 to +43 +10 to +43 +10 to +43 +10 to +43

4.1 Heating water flow / internal pressure differential

in accordance with EN 14511 m³/h / Pa 0.530 / 3700 1.6 / 20000 1.6 / 20000 2.4 / 30400 2.4 / 30400 free compression Pa 66900 38800 38800 29600 29600 Minimum heating water flow m³/h / Pa 0.3 / 1200 0.75 / 8500 0.75 / 8500 0.9 / 10000 0.9 / 10000 free compression Pa 72800 68500 68500 77300 77300

4.2 Noise-power level in accordance with

4.3 Sound pressure level in 10 m distance, outdoors

4.4 Sound power level for outdoor lowered operation

4.5 Sound pressure level at 10 m distance

for outdoor lowered operation

4.6 Noise-power level in accordance with

4.7 Sound pressure level at a distance of 1 m indoors dB(A) 35 35 35 35 35

4.8 Air flow m³/h 3000 3600 3600 7200 7200

5 Dimensions, weight and filling quantities

5.2 Weight of the transport unit(s)

incl. packaging indoors / outdoors kg 21 / 51 23 / 69 23 / 69 25 / 94 25 / 116

5.3 Device connections for heating

inches G 1A G 1A G 1A G 1A G 1A

5.7 Volume of heating water in the outdoor component Litres 0 0 0 0 0

5.9 Start-to-leak pressure, safety valve bar 2.5 2.5 2.5 2.5 2.5

6 Electrical connection

6.7 Nominal power consumption at A7/W35 /

6.9 Nominal power consumption A2 / W35

6.10 Power consumption of compressor protection

7 Complies with the European safety regulations

8 Additional model features

8.1 Type of defrosting

Water in device is protected from freezing

8.3 Max. operating overpressure (heat source/heat sink) bar 3.0 3.0 3.0 3.0 3.0

9 Heat output / coefficients of performance (COP)

at A-7 / W35 kW / ---

at A-7 / W55 kW / ---

at A2 / W35 kW / ---

at A7 / W35 kW / ---

at A7 / W45 kW / ---

at A7 / W55 kW / ---

at A10 / W35 kW / ---

at A20 / W35 kW / ---

at A20/ W55 kW / ---

at A27 / W7 kW / ---

at A27 / W18 kW / ---

at A35 / W7 kW / ---

at A35 / W18 kW / ---

1. The specified sound levels apply if the supporting feet (available as an option) are not used. If the supporting feet are used, the level can increase by up to 3 dB (A). 2. The specified sound pressure level corresponds to the operating noise of the heat pump in heating operation at 35°C flow temperature. The specified sound pressure level is the free sound area level. The measured value can deviate by up to 16 dB(A) depending on the installation location.

3. Please note that additional space is required for pipe connections, operation and maintenance.

4. Factory default 6 kW

5. These data indicate the size and capacity of the system according to EN 14511. For an analysis of the economic and energy efficiency of the system, the bivalence point and the regulation should be taken into consideration. These figures are only achieved with clean heat exchangers. Instructions for care, commissioning and operation can be found in the relevant sections of the installation and operation instructions. The specified values have the following meaning, e.g. A7 / W35: Heat source temperature 7 °C and heating water flow temperature 35 °C.

6. Maximum heating/cooling output

7. Max. intake incl. pipe heating and immersion heater (state of supply)

8. See CE declaration of conformity

9. The heat circulating pump and the heat pump controller must always be ready for operation.

biv -10 °C For air-to-water heat pumps: Operation limit temperature

Cycling interval capacity for heating Pcych - kW Cycling interval efficiency COPcyc

Degradation co-efficient (**) Cdh 0,90 - Heating water operating limit temperature WTOL 55 °C Power consumption in modes other than active mode

Supplementary heater Off mode

m³ /h Sound power level, indoors/ outdoors

Water heating energy efficiency

Daily electricity consumption

elec - kWh Daily fuel consumption

kWh Contact details (**) If Cdh is not determined by measurement nthen the default degradation is Cdh = 0,9 (--) not applicable For air-to-water heat pumps: Rated air flow rate, outdoors For water-/brine-to-water heat pumps: Rated brine or water flow rate, outdoor heat exchanger Declared capacity for heating foer part load at indoor temperature 20°C and outdoor temperature Tj Declared coefficient of performance or primary energy ratio for part load at indoor temperature 20 °C and outdoor temperature Tj For heat pump combination heater: Glen Dimplex Deutschland GmbH, Am Goldenen Feld 18, 95326 Kulmbach (*) For heat pump space heaters and heat pump combination heaters, the rated output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary capacity for heating sup(Tj ).

Heat pump combination heater

Parameters shall be declared for medium-temperature application, except for low-temperature heat pumps. For low- temperature heat pumps, parameters shall be declared for low-temperature application. Rated heat output (*) Prated 2kW Seasonal space heating energy efficiency

Parameters shall be declared for average climate conditions: Brine-to-water heat pump

Low-temperature heat pump yes Equipped with a supplementary heater yes Model LAK 3IMR Air-to-water heat pump yes Water-to-water heat pump nowww.glendimplex.de 452162.66.09a · FD 0108 EN-21 LAK 3IMR - LAK 14ITR English Information requirements for heat pump space heaters and heat pump combination heaters

biv -10 °C For air-to-water heat pumps: Operation limit temperature

Cycling interval capacity for heating Pcych - kW Cycling interval efficiency COPcyc

Degradation co-efficient (**) Cdh 0,90 - Heating water operating limit temperature WTOL 55 °C Power consumption in modes other than active mode

Supplementary heater Off mode

m³ /h Sound power level, indoors/ outdoors

Water heating energy efficiency

Daily electricity consumption

elec - kWh Daily fuel consumption

kWh Contact details (**) If Cdh is not determined by measurement nthen the default degradation is Cdh = 0,9 (--) not applicable Model LAK 6IMR Air-to-water heat pump yes Water-to-water heat pump

Brine-to-water heat pump

Low-temperature heat pump yes Equipped with a supplementary heater yes

Heat pump combination heater

Parameters shall be declared for medium-temperature application, except for low-temperature heat pumps. For low- temperature heat pumps, parameters shall be declared for low-temperature application. Rated heat output (*) Prated 4kW Seasonal space heating energy efficiency

Parameters shall be declared for average climate conditions: For air-to-water heat pumps: Rated air flow rate, outdoors For water-/brine-to-water heat pumps: Rated brine or water flow rate, outdoor heat exchanger Declared capacity for heating foer part load at indoor temperature 20°C and outdoor temperature Tj Declared coefficient of performance or primary energy ratio for part load at indoor temperature 20 °C and outdoor temperature Tj For heat pump combination heater: Glen Dimplex Deutschland GmbH, Am Goldenen Feld 18, 95326 Kulmbach (*) For heat pump space heaters and heat pump combination heaters, the rated output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary capacity for heating sup(Tj ).EN-22 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR Information requirements for heat pump space heaters and heat pump combination heaters

biv -10 °C For air-to-water heat pumps: Operation limit temperature

Cycling interval capacity for heating Pcych - kW Cycling interval efficiency COPcyc

Degradation co-efficient (**) Cdh 0,90 - Heating water operating limit temperature WTOL 55 °C Power consumption in modes other than active mode

Supplementary heater Off mode

m³ /h Sound power level, indoors/ outdoors

Water heating energy efficiency

Daily electricity consumption

elec - kWh Daily fuel consumption

kWh Contact details (**) If Cdh is not determined by measurement nthen the default degradation is Cdh = 0,9 (--) not applicable For air-to-water heat pumps: Rated air flow rate, outdoors For water-/brine-to-water heat pumps: Rated brine or water flow rate, outdoor heat exchanger Declared capacity for heating foer part load at indoor temperature 20°C and outdoor temperature Tj Declared coefficient of performance or primary energy ratio for part load at indoor temperature 20 °C and outdoor temperature Tj For heat pump combination heater: Glen Dimplex Deutschland GmbH, Am Goldenen Feld 18, 95326 Kulmbach (*) For heat pump space heaters and heat pump combination heaters, the rated output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary capacity for heating sup(Tj ).

Heat pump combination heater

Parameters shall be declared for medium-temperature application, except for low-temperature heat pumps. For low- temperature heat pumps, parameters shall be declared for low-temperature application. Rated heat output (*) Prated 4kW Seasonal space heating energy efficiency

Parameters shall be declared for average climate conditions: Brine-to-water heat pump

Equipped with a supplementary heater yes Model LAK 9IMR Air-to-water heat pump yes Water-to-water heat pump nowww.glendimplex.de 452162.66.09a · FD 0108 EN-23 LAK 3IMR - LAK 14ITR English Information requirements for heat pump space heaters and heat pump combination heaters

biv -10 °C For air-to-water heat pumps: Operation limit temperature

Cycling interval capacity for heating Pcych - kW Cycling interval efficiency COPcyc

Degradation co-efficient (**) Cdh 0,99 - Heating water operating limit temperature WTOL 55 °C Power consumption in modes other than active mode

Supplementary heater Off mode

m³ /h Sound power level, indoors/ outdoors

Water heating energy efficiency

Daily electricity consumption

elec - kWh Daily fuel consumption

kWh Contact details (**) If Cdh is not determined by measurement nthen the default degradation is Cdh = 0,9 (--) not applicable Model LAK 14IMR Air-to-water heat pump yes Water-to-water heat pump

Brine-to-water heat pump

Equipped with a supplementary heater yes

Heat pump combination heater

Parameters shall be declared for medium-temperature application, except for low-temperature heat pumps. For low- temperature heat pumps, parameters shall be declared for low-temperature application. Rated heat output (*) Prated 11 kW Seasonal space heating energy efficiency

Parameters shall be declared for average climate conditions: For air-to-water heat pumps: Rated air flow rate, outdoors For water-/brine-to-water heat pumps: Rated brine or water flow rate, outdoor heat exchanger Declared capacity for heating foer part load at indoor temperature 20°C and outdoor temperature Tj Declared coefficient of performance or primary energy ratio for part load at indoor temperature 20 °C and outdoor temperature Tj For heat pump combination heater: Glen Dimplex Deutschland GmbH, Am Goldenen Feld 18, 95326 Kulmbach (*) For heat pump space heaters and heat pump combination heaters, the rated output Prated is equal to the design load for heating Pdesignh , and the rated heat output of a supplementary capacity for heating sup(Tj ).EN-24 452162.66.09a · FD 0108 www.glendimplex.de English LAK 3IMR - LAK 14ITR Information requirements for heat pump space heaters and heat pump combination heaters

biv -10 °C For air-to-water heat pumps: Operation limit temperature

Cycling interval capacity for heating Pcych - kW Cycling interval efficiency COPcyc

Degradation co-efficient (**) Cdh 0,99 - Heating water operating limit temperature WTOL 55 °C Power consumption in modes other than active mode

Supplementary heater Off mode

m³ /h Sound power level, indoors/ outdoors

Water heating energy efficiency

Daily electricity consumption

elec - kWh Daily fuel consumption

kWh Contact details (**) If Cdh is not determined by measurement nthen the default degradation is Cdh = 0,9 (--) not applicable Model LAK 14ITR Air-to-water heat pump yes Water-to-water heat pump

Brine-to-water heat pump

Equipped with a supplementary heater yes

Heat pump combination heater

Parameters shall be declared for medium-temperature application, except for low-temperature heat pumps. For low- temperature heat pumps, parameters shall be declared for low-temperature application. Rated heat output (*) Prated 10 kW Seasonal space heating energy efficiency

pouces G 1A G 1A G 1A G 1A G 1A

Non/Oui Non/Oui Non/Oui Oui/Oui Oui/Oui

Exhaust air grid Cable entry cover Cabel feedthrough

Plug-in terminals J2 to J15, J20 and terminal strip X3, are connected to an extra-low voltage supply. A higher voltage must on no account be connected! ATTENTION !