SI 22TU - Water pump DIMPLEX - Free user manual and instructions

Frequently Asked Questions - SI 22TU DIMPLEX

USER MANUAL SI 22TU DIMPLEX

ATTENTION! When operating or maintaining a heat pump, the legal requirements of the country where the heat pump is operated apply. Depending on the refrigerant quantity, the heat pump must be inspected for leaks at regular intervals by a certified technician, and these inspections must be recorded. ATTENTION! If the heat pump or circulating pumps are controlled externally, an flow rate switch is required to prevent the compressor from being switched on when there is no volume flow. ATTENTION! The heat pump is not secured to the pallet. ATTENTION! The heat pump must not be tilted more than 45° (in any direction). ATTENTION! Do not use the holes in the panel assemblies for lifting the device! ATTENTION! The transport securing device is to be removed prior to commissioning. ATTENTION! Flush the heating system prior to connecting the heat pump. ATTENTION! The supplied dirt trap must be inserted in the heat source inlet of the heat pump to protect the evaporator against the ingress of impurities. ATTENTION! The brine solution must contain at least a 25 % concentration of a monoethylene glycol or propylene glycol-based antifreeze, which must be mixed before filling. ATTENTION! Ensure the rotary field is clockwise when connecting the mains cables (if the rotary field is not clockwise, the heat pump will not work properly, is very loud and may cause damage to the compressor). ATTENTION! It is not permitted to connect more than one electronically regulated circulating pump via a relay output ATTENTION! The heat pump must be started up in accordance with the installation and operating instructions of the heat pump manager. ATTENTION! Any work on the heat pump may only be performed by authorised and qualified after-sales service technicians. ATTENTION! Disconnect all electrical circuits from the power source prior to opening the device.

This device is only intended for use as specified by the manufac- turer. Any other use beyond that intended by the manufacturer is prohibited. This requires the user to abide by the relevant project planning documents. Please refrain from tampering with or alte- ring the device.

1.3 Legal Regulations and

Directives This heat pump is designed for use in a domestic environment according to Article 1, Paragraph 2 k) of EC directive 2006/42/EC (machinery directive) and is thus subject to the requirements of EC directive 2006/95/EC (low-voltage directive). It is thus also in- tended for use by non-professionals for heating shops, offices and other similar working environments, in agricultural establish- ments and in hotels, guest houses and similar / other residential buildings. This heat pump conforms to all relevant DIN/VDE regulations and EU directives. Refer to the EC Declaration of Conformity in the appendix for details. The heat pump must be connected to the power supply in com- pliance with all relevant VDE, EN and IEC standards. Any further connection requirements stipulated by local utility companies must also be observed. The heat pump is to be connected to the heat source system and the heating system in accordance with all applicable regulations. Persons, especially children, who are not capable of operating the device safely due to their physical, sensory or mental abilities or their inexperience or lack of knowledge, must not operate this device without supervision or instruction by the person in charge. Children must be supervised to ensure that they do not play with the device. ATTENTION! When operating or maintaining a heat pump, the legal requirements of the country where the heat pump is operated apply. Depending on the refrigerant quantity, the heat pump must be inspected for leaks at regular intervals by a certified technician, and these inspections must be recorded.

1.4 Energy-Efficient Use of the

Heat Pump By operating this heat pump you are helping to protect our envi- ronment. Both the heating system and the heat source must be properly designed and dimensioned to ensure efficient operation. It is particularly important to keep water flow temperatures as low as possible. All connected energy consumers should therefore be suitable for low flow temperatures. Raising the heating water temperature by 1 K corresponds to an increase in energy con- sumption of approx. 2.5 %. Low-temperature heating systems with flow temperatures between 30 °C and 50 °C are particularly well-suited for energy-efficient operation.www.dimplex.de 452235.66.01 · FD 9310 EN-3 English SI 22TU 2 Purpose of the Heat Pump

The brine-to-water heat pump is to be used exclusively for the heating of heating water. It can be used in new or previously ex- isting heating systems. A mixture of water and antfreeze (brine) is used as the heat transfer medium in the heat source system. Borehole heat exchangers, ground heat colletors or similar sys- tems can be used as the heat source system.

2.2 Operating Principle

The heat generated by the sun, wind and rain is stored in the ground. This heat stored in the ground is collected at a low tem- perature by the brine circulating in the ground collector, ground coil or similar device. A circulating pump then conveys the “heated” brine to the evaporator of the heat pump. There the heat is given off to the refrigerant in the refrigerating cycle. This cools the brine so that it can once again absorb thermal energy in the brine circuit. The refrigerant is drawn in by the electrically driven compressor, compressed and “pumped” to a higher temperature level. The electrical power needed to run the compressor is not lost in this process. Most of it is absorbed by the refrigerant. Subsequently, the refrigerant is passed through the condenser where it transfers its heat energy to the heating water. Depend- ing on the set operating point (thermostat setting), the heating water is thus heated up to a max. of 58 °C. 3 Basic Device The basic device consists of a ready-to-use heat pump for indoor installation, complete with sheet metal casing, control panel and integrated manager. The refrigerant circuit is hermetically sealed. It contains the Kyoto protocol approved refrigerant R407C with a GWP value of 1653. It is CFC-free, does not de- plete ozone and is non-flammable. All components required for the operation of the heat pump are located on the control panel. An external wall temperature sensor including fixing accessories and a dirt trap are supplied with the heat pump. The supply for the load current and the control volt- age must be installed by the customer. The supply lead of the brine circulating pump (to be provided by the customer) must be connected to the control panel. If re- quired, the supply lead of the brine pump is be equipped with a motor protection device. The customer must provide both the heat source system and the brine circuit manifold.

The brine circuit manifold merges the individual collector loops of the heat source system into a single main pipe which is con- nected to the heat pump. Integrated ball valves allow the individ- ual brine circuits to be shut off for de-aeration purposes.

A remote control adds convenience and is available as a special accessory. Operation and menu navigation are identical to those of the heat pump manager. Connection takes place via an inter- face (special accessories) with RJ 12 Western plug. NOTE In the case of heating controllers with a removable operating element, this can also be used directly as a remote control.

4.3 Building management

technology The heat pump manager can be connected to a building man- agement system network via supplementation of the relevant in- terface plug-in card. The supplementary installation instructions of the interface card must be consulted regarding the exact con- nection and parameterisation of the interface. The following network connections can be made on the heat pump manager: Modbus EIB, KNX Ethernet ATTENTION! If the heat pump or circulating pumps are controlled externally, an flow rate switch is required to prevent the compressor from being switched on when there is no volume flow.

The thermal energy meter (WMZ 25/32) is used for measuring the quantity of thermal energy supplied. It is available as an ac- cessory. Due to the additional heat exchanger, two thermal en- ergy meters are required for measuring the quantity of thermal energy. Sensors in the flow and return of the heat exchanger pipes and an electronics module acquire the measured values and transmit a signal to the heat pump manager, which, depending on the cur- rent operating mode of the heat pump (heating/DHW/swimming pool), totals the thermal energy in kWh and displays them in the operating data and history menu. NOTE The thermal energy meter complies with the quality requirements of the German market incentive programme subsidising efficient heat pumps. The thermal energy meter is not subject to obligatory calibration, and can thus not be used for the heating cost billing procedure!

4.4.2 Hydraulic and electrical integration

of the thermal energy meter The thermal energy meter requires two measuring devices for data acquisition. A measuring tube for the flow measurement This must be installed in the heat pump flow (observe flow direction). A temperature sensor (copper pipe with immersion sleeve) This must be installed in the heat pump return. The installation locations for both measuring tubes should be as close to the heat pump as possible in the generator circuit. The distance from pumps, valves and other installations must be taken into account, as eddying effects could lead to incorrect thermal energy metering (a calming section of 50 cm is recom- mended). L / N / PE230 V / 50 Hz N1 / IDX24 V ACThermal energy meter casing - electronicsin the heating flowin the heating return flowPulse, thermal energy meterwww.dimplex.de 452235.66.01 · FD 9310 EN-5 English SI 22TU 5 Transport A lift truck is suited for transporting the unit on a level surface. Carrying straps may be used if the heat pump needs to be trans- ported on an uneven surface or carried up or down stairs. These straps can be passed directly underneath the pallet. ATTENTION! The heat pump is not secured to the pallet. ATTENTION! The heat pump must not be tilted more than 45° (in any direction). Use the holes provided in the sides of the frame to lift the unit without the pallet. The side panel assemblies must be removed for this purpose. Any commercially available length of pipe can be used as a carrying aid. ATTENTION! Do not use the holes in the panel assemblies for lifting the device! After the transport, the transport securing device is to be re- moved. ATTENTION! The transport securing device is to be removed prior to commissioning. 6Set-up

6.1 General Information

The brine-to-water heat pump must be installed in a frost-free, dry room on an even, smooth and horizontal surface. The entire frame should lie directly on the floor to ensure a adequate sound- proof seal. If this is not the case, additional sound insulation measures may be necessary. The heat pump must be installed so that maintenance work can be carried out without hindrance. This can be ensured by main- taining a clearance of approx. 1 m in front of and on each side of the heat pump. Neither frost nor temperatures higher than 35 °C must occur in the installation location at any time of the year.

6.2 Acoustic Emissions

The heat pump operates silently due to efficient sound insulation. Internal insulation measures should be carried out to prevent vi- brations from being transmitted to the foundation or to the heat- ing system. 5HPRYHWUDQVSRUWORFNEN-6 452235.66.01 · FD 9310 www.dimplex.de English SI 22TU 7 Installation

7.1 General Information

The following connections need to be established on the heat pump: - Flow and return of the brine (heat source system) - Flow and return flow of the heating system - Temperature sensor - Voltage supply

7.2 Heating System Connection

ATTENTION! Flush the heating system prior to connecting the heat pump. 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 the liquifier could cause the heat pump to completely break down. Once the heating system has been installed, it must be filled, de- aerated and pressure-tested. The sensors which are delivered already connected and loosely placed in the switch box must be mounted and insulated accord- ing to the block diagram. Consideration must be given to the following when filling the sys- tem: Untreated filling water and make-up water must be of drink- ing water quality (colourless, clear, free from sediments) Filling water and make-up water must be pre-filtered (pore size max. 5 µm). Scale formation in hot water heating systems cannot be com- pletely avoided, but in systems with flow temperatures below 60 °C the problem can be disregarded. With medium and high-temperature heat pumps, temperatures above 60 °C can be reached. The following standard values should therefore be adhered to concerning the filling water and make-up water (according to VDI 2035 Sheet 1): Minimum heating water flow rate The minimum heating water flow rate through the heat pump must be assured in all operating states of the heating system. This can be accomplished, for example, by installing a dual dif- ferential pressureless manifold. NOTE The use of an overflow valve is only recommended for panel heating and a max. heating water flow of 1.3 m³/h. System faults may result if this is not observed. The frost protection function of the heat pump manager is active whenever the heat pump manager and the heat circulating pumps are ready for operation. If the heat pump is taken out of service or in the event of a power failure, the system has to be drained. The heating circuit should be operated with a suitable antifreeze if heat pump systems are implemented in buildings where a power failure can not be detected (holiday home).

7.3 Heat Source Connection

The following procedure must be observed when connecting the heat source: Connect the brine pipe to the heat pump flow and return. The hy- draulic integration diagram must be adhered to. ATTENTION! The supplied dirt trap must be inserted in the heat source inlet of the heat pump to protect the evaporator against the ingress of impurities. The brine liquid must be produced prior to charging the system. The liquid must have an antifreeze concentration of at least 25 % to ensure frost protection down to -14 °C. Only monoethylene glycol or propylene glycol-based antifreeze may be used. The heat source system must be de-aerated and checked for leaks. ATTENTION! The brine solution must contain at least a 25 % concentration of a monoethylene glycol or propylene glycol-based antifreeze, which must be mixed before filling. ATTENTION! A suitable de-aerator (micro bubble air separator) must be installed in the heat source circuit by the customer.

7.4 Temperature sensor

The following temperature sensors are already installed or must be installed additionally: External temperature sensor (R1) supplied (NTC-2) Return temperature sensor (R2) installed (NTC-10) Flow temperature heating circuit (R9) installed (NTC-10) Flow temperature primary circuit (R6) installed (NTC-10) Total heatoutput in [kW]Total alkaline earthsin mol/m³ and/ormmol/lTotalhardness in °dHup to 200 2.0 11.2200 to 600 1.5 8.4> 600 < 0.02 < 0.11www.dimplex.de 452235.66.01 · FD 9310 EN-7 English SI 22TU

7.4.1 Sensor characteristic curves

The temperature sensors to be connected to the heat pump ma- nager must correspond to the sensor characteristic curve illustra- ted in Fig.7.1 on pag. 7. The only exception is the external tem- perature sensor included in the scope of supply of the heat pump (see Fig.7.2 on pag. 7) Fig. 7.1:Sensor characteristic curve NTC-10 Fig. 7.2:Sensor characteristic curve, NTC-2 according to DIN 44574 External temperature sensor

7.4.2 Mounting the external temperature

sensor The temperature sensor must be mounted in such a way that all weather conditions are taken into consideration and the meas- ured value is not falsified. On the external wall of a heated room used as living space, if possible on the north or north-west side of the building Do not install in a “sheltered position” (e.g. in a wall niche or under a balcony) Not in the vicinity of windows, doors, exhaust air vents, ex- ternal lighting or heat pumps Not to be exposed to direct sunlight at any time of year Sensor lead: Max. length 40 m; min. core cross-section

It is only necessary to mount the strap-on sensors if they are in- cluded in the scope of supply of the heat pump but have not yet been installed. The strap-on sensors can be fitted as pipe-mounted sensors or installed in the immersion sleeve of the compact manifold. Mounting as a pipe-mounted sensor Remove paint, rust and scale from heating pipe. Coat the cleaned surface with heat transfer compound (apply sparingly). Attach the sensor with a hose clip (tighten firmly, as loose sensors can cause malfunctions) and thermally insulate.

7.4.4 Hydraulic distribution system

The compact manifold and the dual differential pressureless manifold function as an interface between the heat pump, the heating distribution system, the buffer tank and, in some cases, even the hot water cylinder. A compact system is used to simplify the installation process, so that a lot of different components do not have to be installed individually. Further information can be found in the relevant installation instructions. Compact manifold The return sensor can remain in the heat pump, or should be in- stalled in the immersion sleeve. The remaining empty space be- tween the sensor and the immersion sleeve must be filled com- pletely with heat transfer compound. Dual differential pressureless manifold In order for the heating circuit pumps of the generator and con- sumer circuits to supply the flow to the return sensor, this must be installed in the immersion sleeve of the dual differential pres- sureless manifold. Temperature in °C -20 -15 -10 -5 0 5 10 NTC-2 in k 14.6 11.4 8.9 7.1 5.6 4.5 3.7 NTC-10 in k 67.7 53.4 42.3 33.9 27.3 22.1 18.0

7.5 Electrical connection

All electrical connection work must be carried out by a trained electrician or a specialist for the specified tasks in accordance with the installation and operating instructions, country-specific installation regulations (e.g. VDE 0100), technical connection conditions of the energy suppliers and supply grid operators (e.g. TAB) and local conditions. To ensure that the frost protection function of the heat pump works properly, the heat pump manager must remain connected to the power supply and the flow must be maintained through the heat pump at all times. The switching contacts of the output relay are interference-sup- pressed. Therefore, depending on the internal resistance of the measuring instrument, a voltage can also be measured when the contacts are open. However, this will be much lower than the line voltage. Extra-low voltage is connected to controller terminals N1-J1 to N1-J11; N1-J19; N1-J20; N1-J23 to N1-J26 and terminal strip X3. If, due to a wiring error, the line voltage is mistakenly con- nected to these terminals, the heat pump manager will be de- stroyed

7.5.2 Electrical installation

1) The electric 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 Connection of the mains cable to the control panel of the heat pump via terminal X1: L1/L2/L3/PE. An all-pole disconnecting device with a contact gap of at least 3 mm (e.g. utility blocking contactor or power contac- tor) 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 com- pliance with the device information). ATTENTION! Ensure the rotary field is clockwise when connecting the mains cables (if the rotary field is not clockwise, the heat pump will not work properly, is very loud and may cause damage to the compressor).

2) The three-core electric supply cable for the heat pump man-

ager (heating controller N1) is fed into the heat pump . Connection of the control line to the control panel of the heat pump via terminal X2: L/N/PE. Details on the power consumption of the heat pump are listed on both the product information sheet and the type plate. The (L/N/PE~230 V, 50 Hz) supply cable for the heat pump manager must have a constant voltage. For this reason, it should be tapped upstream from the utility blocking contac- tor or be connected to the household current, as important protection functions could otherwise be lost during a utility block.

3) 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/G to connector terminal X3/A1. CAUTION! Extra-low voltage!

4) The contactor (K20) for the immersion heater (E10) of mono

energy systems (HG2) should be dimensioned according to the radiator output and must be supplied by the customer. It is controlled (230 V AC) by the heat pump manager via ter- minals X2/N and X2/K20.

5) The contactor (K21) for the flange heater (E9) in the hot

water cylinder should be dimensioned according to the radi- ator output and must be supplied by the customer. It is con- trolled (230 V AC) by the heat pump manager via terminals X2/N and X2/K21.

6) The contactors mentioned above in points 3, 4 and 5 are in-

stalled in the electrical distribution system. Mains cables for the installed heaters must be laid and secured in accord- ance with the valid standards and regulations.

7) All installed electric cables must have permanent wiring.

8) The heat circulating pump (M13) is activated via the contact

N1-J13/NO5. The connection points for the pump are X2/M13 and X2/N. When using pumps where the switching capacity exceeds the output, a coupling relay must be inter- posed.

9) The auxiliary circulating pump (M16) is activated via the con-

tact N1-J16/NO9. The connection points for the pump are X2/M16 and X2/N. When using pumps where the switching capacity exceeds the output, a coupling relay must be inter- posed.

10) The domestic hot water circulating pump (M18) is activated

via the contact N1-J13/NO6. The connection points for the pump are X2/M13 and X2/N. When using pumps where the switching capacity exceeds the output, a coupling relay must be interposed.

11) The brine or well pump (M11) is activated via the contact N1-

J12/NO3. The connection points for the pump are X2/M11 and X2/N. When using pumps where the switching capacity exceeds the output, a coupling relay must be interposed.

12) The return flow sensor is integrated into the heat pumps

and is connected to the heat pump manager via the control line. The return flow sensor must be installed in the im- mersion sleeve in the manifold only when a dual differen- tial pressureless manifold is used. The single-core wires are then connected to terminals X3/GND and X3/ R2.1. Bridge A-R2 (situated between X3/B2 and X3/1 when delivered) must then be moved to terminals X3/1 and X3/2.

13) The external sensor (R1) is connected to terminals X3/GND

14) The domestic hot water sensor (R3) is included with the do-

mestic hot water cylinder and is connected to terminals X3/ GND and X3/R3.www.dimplex.de 452235.66.01 · FD 9310 EN-9 English SI 22TU

7.5.3 Connection of electronically

regulated circulating pumps Electronically regulated circulating pumps have high starting cur- rents, which may shorten the service life of the heat pump man- ager. For this reason, a coupling relay is installed or must be in- stalled between the output of the heat pump manager and the electronically regulated circulating pump. This is not necessary if the permissible operating current of 2 A and a maximum starting current of 12 A are not exceeded in the electronically regulated circulating pump or if express approval has been issued by the pump manufacturer. ATTENTION! It is not permitted to connect more than one electronically regulated circulating pump via a relay output 8 Commissioning

8.1 General Information

To ensure that start-up is performed correctly, it should only be carried out by an after-sales service technician authorised by the manufacturer. These measures can also include an additional warranty under certain conditions (see Warranty).

The following items need to be checked prior to start-up: The heat pump must be fully connected, as described in

The heat source system and the heating circuit must have been filled and checked. The dirt trap must be inserted in the brine inlet of the heat pump. All valves that could impair proper flow in the brine and heat- ing circuits must be open. The heat pump manager must be adapted to the heating system in accordance with the controller’s operating instruc- tions.

8.3 Start-up Procedure

The heat pump is started up via the heat pump manager. ATTENTION! The heat pump must be started up in accordance with the installation and operating instructions of the heat pump manager. 9 Maintenance and Cleaning

To prevent faults due to sediment in the heat exchangers, care must be taken to ensure that no impurities can enter either the heat source system or the heating system. In the event that op- erating malfunctions due to contamination occur nevertheless, the system should be cleaned as described below.

9.2 Cleaning the Heating System

The ingress of oxygen into the heating water circuit may result in the formation of oxidation products (rust), particularly if steel components are used. This oxygen enters the heating system via the valves, the circulating pumps and/or plastic pipes. It is there- fore essential - in particular with respect to the piping of under- floor heating systems - that only diffusion-proof materials are used. NOTE We recommend the installation of a suitable corrosion protection system to prevent the formation of deposits (e.g. rust) in the condenser of the heat pump. We recommend equipping diffusion-open heating systems with an electrophysical anti-corrosion system (e.g. ELYSATOR system). Residue from lubricants and sealants may also contaminate the heating water. In the case of severe contamination leading to a reduction in the performance of the liquifier in the heat pump, the system must be cleaned by a heating technician. Based on current information, we recommend using a 5 % phos- phoric acid solution for cleaning purposes. However, if cleaning needs to be performed more frequently, a 5 % formic acid solu- tion should be used. In either case, the cleaning fluid should be at room temperature. We recommend flushing the heat exchanger in the direction op- posite to the normal flow direction. To prevent acidic cleaning agents from entering the heating sys- tem circuit, we recommend connecting the flushing device di- rectly to the flow and return flow of the liquifier. It is important that the system be thoroughly flushed using appropriate neutralising agents to prevent any damage from being caused by cleaning agent residue remaining in the system. Acids must be used with great care and all relevant regulations of the employers’ liability insurance associations must be adhered to. The manufacturer's instructions regarding cleaning agent must be complied with at all times.

9.3 Cleaning the Heat Source System

ATTENTION! The supplied dirt trap must be inserted in the heat source inlet of the heat pump to protect the evaporator against the ingress of impurities. The filter sieve of the dirt trap should be cleaned one day after- start-up. Further checks must be set according to the level of dirt.If no more signs of contamination are evident, the filter can be removed to reduce pressure drops.EN-10 452235.66.01 · FD 9310 www.dimplex.de English SI 22TU 10 Faults / Trouble-Shooting This heat pump is a quality product and is designed for trouble- free operation. In the event that a fault should occur, it will be in- dicated on the heat pump manager display. Simply consult the Faults and Trouble-Shooting page in the operating instructions of the heat pump manager. If you cannot correct the fault yourself, please contact your after- sales service technician. ATTENTION! Any work on the heat pump may only be performed by authorised and qualified after-sales service technicians. ATTENTION! Disconnect all electrical circuits from the power source prior to opening the device. 11 Decommissioning / Disposal Before removing the heat pump, disconnect it from the power source and close all valves. The deinstallation of the heat pump must be performed by technical personnel. Observe all environ- mentally-relevant requirements regarding the recovery, recycling and disposal of materials and components in accordance with all applicable standards. Particular attention should be paid to the proper disposal of refrigerants and refrigeration oils.www.dimplex.de 452235.66.01 · FD 9310 EN-11 English SI 22TU 12 Device Information 1 Type and order code SI 22TU 2Design Heat source Brine

2.2 Controller Integrated

2.3 Thermal energy metering Integrated

2.4 Installation location Indoors

2.5 Performance levels 1

3.1 Heating water flow ° C up to 58 ± 2

3.4 Minimum brine concentration (-13 °C freezing temperature) 25%

4.1 Heating water flow internal pressure differential

4.3 Sound power level according to EN 12102 dB(A) 53

4.4 Sound pressure level at a distance of 1 m indoors

5 Dimensions, weight and filling quantities

5.3 Device connections for heating system Inches G 1 1/4“

5.4 Device connections for heat source Inches G 1 1/2“

5.7 Volume of heating water in device litres 3,8

5.8 Volume of the heat transfer medium in divice litres 5,0

6 Electrical connection

6.3 Degree of protection according to EN 60 529 IP 20

6.4 Starting current limiter Soft starter

6.5 Rotary field monitoring no

6.6 Starting current A 25

6.7 Nominal power consumption at B0/W35 / max. consumption

6.9 Power consumption of compressor protection (per compressor)W

6.10 Power consumption of circulationpumpe WEN-12 452235.66.01 · FD 9310 www.dimplex.de

English SI 22TU 7 Complies with the European safety regulations

8 Additional model features

8.1 water in device protected against freezing

8.2 Max. operating overpressure (heat sink) bar 3,0

EN 14511 at B-5 / W35 kW / --- 18,6 / 2,5 at B0 / W55 kW / --- 21,5 / 2,9 at B0 / W45 kW / --- 22,3 / 3,6 at B0 / W35 kW / --- 22,9 / 4,4 1. The specified sound pressure level corresponds to the operating noise of the heat pump in heating operation with a flow temperature of 35 °C. The specified sound pressure level represents the free sound area level. The measured value can deviate by up to 16 dB(A), depending on the installation location.

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

3. 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 regulation should be taken into consideration. These specifications can only be achieved with clean heat exchangers. Information on maintenance, commissioning and operation can be found in the respective sections of the installation and operating instructions. The specified values have the following meaning, e.g. A7 / W35: Heat source temperature 7 °C and heating water flow temperature 35 °C.

4. See CE declaration of conformity

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Contactor for electric immersion heater (hot water)

EC declaration of conformity issued on. Marquage CE: