Dimplex SI 90TU Brine to Water Heat Pump Instruction Manual

SI 90TU
Glen **Dimplex Deutschland
Installation and
Operating Instruction
Brine-to-Water
Heat Pump for
Indoor Installation**

Safety notes

1.1 Symbols and markings
Particularly important information in these instructions is marked with CAUTION! and NOTE
CAUTION!
Immediate danger to life or danger of severe personal injury or significant damage to property.
NOTE
Risk of damage to property or minor personal injury or important information with no further risk of personal injury or damage to property
1.2 Intended use
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 from tampering with or altering 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 EU directive 2006/42/ EC (machinery directive) and is thus subject to the require- ments of EU directive 2014/35/EU (low- voltage directive). It is thus also intended for use by non-professionals for heating shops, offices and other similar working environments, agricul- tural establishments and hotels, guesthouses and other resi- dential 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 compliance with all relevant VDE, EN and IEC standards. Any further connection requirements stipulated by local utility com- panies 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 regu- lations.
This unit can be used by children aged 8 and over and by per- sons with limited physical, sensory or mental aptitude or lack of experience and/or knowledge, providing they are supervised or have been instructed in the safe use of the unit and understand the associated potential dangers.
Children must not play with the device. Cleaning and user maintenance must not be carried out by children without su- pervision
CAUTION!
Work on the heat pump must only be performed by authorised and qualified after-sales service technicians!
CAUTION!
When operating or maintaining a heat pump, the legal requirements of the country where the heat pump is operated apply. Depending on the refrigerant fill quantity, the heat pump must be inspected for leaks at regular intervals by a certified technician, and these inspections must be recorded.
More information can be found in the accompanying log book.
1.4 Energy-efficient use of the heat pump
By operating this heat pump you are helping to protect our en- vironment. Both the heating system and the heat source must be properly designed and dimensioned to ensure efficient op- eration. It is particularly important to keep water flow tempera- tures as low as possible. All connected heat consumers should therefore be suitable for low flow temperatures. Raising the heating water temperature by 1 K corresponds to an increase in electricity consumption 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.

Intended use of the heat pump

2.1 Intended purpose
The brine-to-water heat pump is to be used exclusively for the heating of heating water. It can be used in new or existing heat- ing systems. A mixture of water and frost protection (brine) is used as a heat transfer medium in the heat source system. Borehole heat exchangers, ground heat collectors or similar systems 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 heat collector, the borehole heat exchanger or a similar system.
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 refrigeration circuit. 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 compres- sor, 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. The refrigerant subsequently passes through the liquifier where it transfers its thermal energy to the heating water. Depending on the set operating point, the heating water can thus be heated up to a max. of 62 °C.

Basic device

The basic device consists of a heat pump for indoor installation wired ready for use with metal casing, switch box and inte- grated heat pump manager. The refrigeration circuit is “hermet- ically sealed” and contains the fluorinated refrigerant R410A in- cluded in the Kyoto protocol. Information on the GWP value and CO2 equivalent of the refrigerant can be found in the chap- ter Device information. The refrigerant is CFC-free, non-ozone depleting and non- combustible.

All components required for the operation of the heat pump are located in the switch box. An outside temperature sensor in- cluding fixing accessories and a dirt trap are supplied with the heat pump. The supply for the supply voltage and the control voltage must be installed by the customer.

The circulating pumps (brine and heating water side) included in the scope of supply must be installed in accordance with the hydraulic diagrams (see Cap. 4 on pag. XII) or the development documents. The electrical connection of the circulating pumps must be established in accordance with Cap. 7.5.3 on pag. 9.

The customer must provide both the heat source system and the brine circuit manifold.

1. Switch box
2. Evaporator
3. Liquefier
4. Filter dryer
5. Compressor 1
6. Compressor 2
7. Expansion valve
8. Economiser

Accessories

4.1 Connection flange
The device can optionally be switched to flange connection using the flat- sealing connection flange.
4.2 Remote control
A remote display 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 interface (special accessories) with RJ 12 Western plug.
NOTE
In the case of heating controllers with a removable control panel, this can also be used directly as a remote display.
4.3 Building management system
The heat pump manager can be connected to a building man-agement system network via supplementation of the relevant interface plug-in card. The supplementary installation instruc-tions of the interface card must be consulted regarding the exact connection and parameterisation of the interface. The following network connections can be made on the heat pump manager:

• Modbus
• EIB, KNX
• Ethernet

CAUTION!
If the heat pump or circulating pumps are controlled externally, a flow rate switch is required to prevent the compressor from being switched on when there is no volume flow.

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. CAUTION! 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.
After transportation, the transport fastening in the device is to be removed from both sides of the base. CAUTION! Before commissioning, the transport fastening must be removed.
All panelling can be removed to allow accessing the inside of the device.
To remove the panelling, open the individual covers by un-screw-ing the respective turn-lock fasteners and then gently tilting the covers away from the device. Then lift them up out of the mount-ings.

Installation

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 base of the frame should lie directly on the floor to ensure an adequate soundproof 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 the heat pump. Neither frost nor temperatures higher than 35 °C must occur in the installation location at any time of the year.
NOTE
The heat pump is not intended for use over 2000 metres above sea level.
6.2 Acoustic Emissions
The heat pump operates silently due to efficient sound insula- tion. Internal insulation measures should be carried out to pre- vent vibrations from being transmitted to the foundation or to the heating system.

Installation

7.1 General
The following connections need to be established on the heat pump. The hydraulic integration diagram must be adhered to:

• Flow and return of the brine (heat source system)
• Flow and return of the heating system
• Temperature sensor
• Voltage supply

7.2 Connection on the heating side
CAUTION! 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 heat pump has been connected to the heating sys-tem, it must be filled, de-aerated and pressure-tested.
CAUTION! The maximum test pressure in the heating circuit and the brine circuit is 6.0 bar. This value must not be exceeded.

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 5 pm).

Scale formation in domestic hot water heating systems cannot be avoided, but in systems with flow temperatures below 60 °C, the problem can be disregarded. With high-temperature heat pumps and in particular with bivalent systems in the higher per-formance range (heat pump -F boiler combination), flow tem- peratures of 60 °C and more can be achieved. The following standard values should therefore be adhered to with regard to the filling and make-up water according to VD] 2035, sheet 1: The total hardness values can be found in the table.

Filling and supplementary water as well as heating water, depending on heat output

Overall heat output in kW| Total alkaline earths in mol/m3 (Total hardness in dGH)
Specific system volume in I/kW Heat output 1
20| > 20 to 5. 50| > 50
5. 50 specific water content heat generator > 0.3 k per kW 2| none| 5 3.0 (16.8)| < 0.05 (0.3)
1 50 specific water content heat generator > 0.3 k per kW 2 (e.g. circulating water heaters) and systems with electric heat- ing elements| < 3. 0 (16. 8) —| < 1.5 (8.4)

50 kW to s 200 kW| 1 2.0 (11.2)| 1 1.0 (5.6)
200 kW to s 600 kW| s 1.5 (8.4| < 0.05 (0.3)
600 kW| < 0.05 (0.3)
Heating water, depending on heating output
Operating mode| Electrical conductivity in pS/cm
Low-salt 3| > 10 to 5 100
Containing salt| > 100 to 1 1500
| Appearance
clear, free from sedimentary substances
Materials in the system| pH value
Without aluminium alloys| 8.2 to 10.0
With aluminium alloys| 8.2 to 9.0

1. For the purpose of calculating the specific system volume, the smallest indi-vidual heat output is to be used for systems with several heat generators.
2. In systems with several heat generators with different specific water con-tents, the smallest specific water content is decisive.
3. For systems with aluminium alloys, full softening is recommended.

Fig. 7.1:Guideline values for filling and make-up water in accordance with VDI 2035
For systems with an above-average specific system volume of 501/kW, VDI 2035 recommends using fully demineralized water and a pH stabiliser to minimize the risk of corrosion in the heat pump and the heating system.
CAUTION! With fully demineralized water, it is important to ensure that the minimum permissible pH value of 7.5 (minimum permissible value for copper) is complied with. Failure to comply with this value can result in the heat pump being destroyed.
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.
The frost protection function of the heat pump manager is ac-tive whenever the heat pump manager and the heat circulating pumps are ready for operation. The system must be drained if the heat pump is taken out of service or in the event of a power failure. If heat pump systems are implemented in buildings where a power failure cannot be detected (holiday homes etc.), the heating circuit should be operated with suitable frost pro-tection.
7.3 Heat source connection
The following procedure must be observed when making the connection:
Connect the brine pipe to the heat source flow and return of the heat pump.
The hydraulic integration diagram must be adhered to.
CAUTION! 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 must be produced prior to charging the system. The brine concentration must be at least 25 %. This guarantees frost protection up to approx. -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.
CAUTION! The brine must contain at least a 25 % concentration of a monoethylene glycol or propylene glycol-based antifreeze, which must be mixed before filling.
NOTE if necessary, the operating range can be extended to a brine inlet temperature of -10 °C. In this case, the minimum brine concentration must be adjusted to 30 %. (Freezing temperature -17 C°).
CAUTION! The maximum test pressure in the heating circuit and the brine circuit is 6.0 bar. This value must not be exceeded.
CAUTION! 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:

• Outside temperature sensor (R1) supplied (NTC-2)
• Return temperature secondary circuit (R2) installed (NTC-10)
• Return temperature primary circuit (R24) installed (NTC-10)
• Flow temperature secondary circuit (R9) installed (NTC-10)
• Flow temperature primary circuit (R6) installed (NTC-10)

7.4.1 Sensor characteristic curves

Temperature in °C| -20| -15| -10| -5| 0| 5| 10
---|---|---|---|---|---|---|---
NTC-2 in Id2| 14.6| 11.4| 8.9| 7.1| 5.| 4.5| 3.7
NTC-10 in kf2| 67.7| 53.4| 42.3| 33.9| 27.3| 22.1| 18.0
15| 20| 25| 30| 35| 40| 45| 50| 55| 60
2.9| 2.4| 2.0| 1.7| 1.4| 1.1| 1.0| 0.8| 0.7| 0.6
14.9| 12.1| 10.0| 8.4| 7.0| 5.9| 5.0| 4.2| 3.6| 3.1

The temperature sensors to be connected to the heat pump manager must correspond to the sensor characteristic curve il-lustrated in Fig. 7.2. The only exception is the outside tempera-ture sensor included in the scope of supply of the heat pump (see Fig. 7.3) Fig. 7.2:Sensor characteristic curve NTC-10 Fig. 7.3:Sensor characteristic curve NTC-2 according to DIN 44574 Out-side temperature sensor
7.4.2 Mounting the outside 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

Dimensioning parameter sensor lead

Conductor material| Cu
Cable-length| 50 m
Ambient temperature| 35 °C
Laying system| B2 (DIN VDE 0298-4 / IEC 60364-5-52)
External diameter| 4-8 mm

7.4.3 Installing the strap-on sensor
It is only necessary to mount the strap-on sensors if they are included 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 domestic 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 installed in the immersion sleeve. The remaining empty space between the sensor and the immersion sleeve must be filled completely with heat transfer compound.
Dual differential pressureless manifold
In order for the heating circuit pumps of the generator and consumer circuits to supply the flow to the return sensor, this must be installed in the immersion sleeve of the dual differential pressureless manifold.
7.5 Electrical connection
7.5.1 General
All electrical installation 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 interferencesuppressed. 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 to N1-J20; N1-J23 to N1-J26 and the terminal strips X3. If, due to a wiring error, the line voltage is mistakenly connected to these terminals, the heat pump manager will be destroyed.

NOTE
For installation work on the switch box, ensure that the mains cable and signal cables are inserted separately into the switch box. The specially arranged switch box inlets must be used for this purpose (see Fig.7.4 on pag. 8).
The mains cables and signal cables must also always be laid separately in the switch box during wiring work.

7.5.2 Electrical installation work

1. The four-core electrical supply cable for the heat pump power part is fed from the heat pump electricity meter into the heat pump via the utility company blocking contactor (if required) (for supply voltage, see heat pump manual).
   The mains cable is connected to the heat pump contact plate via terminals X1: L1/L2/L3/PE.
   CAUTION! !! Ensure that there is a clockwise rotating field: With incorrect wiring the starting of the heat pump is prevented. A corresponding warning is indicated on the display of the heat pump manager (adjust wiring). An all-pole disconnecting device with a contact gap of at least 3 mm (e.g. utility company 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).

2. The three-core supply cable for the heat pump manager (heating controller N1) is fed into the heat pump. Connection of the control cable to the contact plate of the heat pump via terminal X2: L/N/PE. The (L/N/PE~230 V, 50 Hz) supply cable for the heat pump manager must have a continuous voltage. For this reason, it should be tapped upstream from the utility company blocking contactor or be connected to the household current, as important protection functions could otherwise be lost during a utility block.

3. The utility company blocking contactor (K22) with main contacts and an auxiliary contact must be designed and provided by the customer in accordance with the heat pump output. The NO contact of the utility company blocking contactor is looped from the terminal strip X3/G to the plug-in terminal X3/ID3. 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 terminals X2/N and X2/K20.

5. The contactor (K21) for the flange heater (E9) in the domestic hot water cylinder 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 terminals X2/N and X2/K21.

6. The contactors mentioned above in points 3, 4 and 5 are installed in the electrical distribution system.

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 interposed.

9. The auxiliary circulating pump (M16) is activated via the contact N1-J16/NO9. The connection points for the pump are X2/M16 and X2/N. A coupling relay is already integrated in this output.

10. The domestic hot water circulating pump (M18) is activated via the contact N1-J13/NO6. The connection points for the pump are X2/M18 and X2/N. When using pumps where the switching capacity exceeds the output, a cou- pling 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. A coupling relay is already integrated in this output.

12.  The return sensor (R2) is integrated in the heat pumps for indoor installation.
    The heat pump manager is connected via the following terminals:
    X3/GND and X3/U2.

13. The external sensor (R1) is connected to terminals X3/GND and X3/U1.

14.  The domestic hot water sensor (R3) is included with the domestic hot water cylinder and is connected to terminals GND and X3/U3.

7.5.3 Connection of electronically regulated circulating pumps
Electronically regulated circulating pumps have high starting currents, which may shorten the service life of the heat pump manager. For this reason, a coupling relay is installed or must be installed 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 is- sued by the pump manufacturer.
CAUTION! !! It is not permitted to connect more than one electronically regulated circulating pump via a relay output.

Commissioning

8.1 General Information
To ensure that commissioning is performed correctly, it should only be carried out by an after-sales service technician authorised by the manufacturer.
This may be a condition for an additional guarantee (see “Warranty service”).
8.2 Preparation
The following items must be checked prior to commissioning:

• All of the heat pump connections must be installed as described in chapter 7.
• 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 heating circuits must be open.
• The heat pump manager must be adapted to the heating system in accordance with the controller’s operating instructions.

8.3 Commissioning procedure
The heat pump is commissioned via the heat pump manager.
CAUTION!
Start-up must be performed in accordance with the installation and operating instructions of the heat pump manager.

Cleaning / maintenance

9.1 Maintenance
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 operating 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. These enter the heating system via the valves, the circulating pumps and/or plastic pipes. A diffusionresistant installation is therefore essential, especially with regard to the piping of underfloor heating systems.
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. Residue from lubricants and sealants may also contaminate the heating water. In the event of severe contamination leading to a reduction in the performance of the liquefier in the heat pump, the system must be cleaned by a heating technician. Based on current information, we recommend using a 5 % phosphoric acid solution for cleaning purposes. However, if cleaning needs to be performed more frequently, a 5 % formic acid solution should be used. In both cases, the cleaning fluid should be at room temperature. We recommend flushing the heat exchanger in the direction opposite to the normal flow direction. To prevent acidic cleaning agents from entering the heating system circuit, we recommend connecting the flushing device directly to the flow and return of the liquefier of the heat pump. It is then 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 care and the regulations of the employers liability insurance associations must be adhered to. The instructions of the cleaning agent manufacturer must always be observed.
9.3 Cleaning the heat source system
CAUTION!
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.

Faults / troubleshooting

This heat pump is a quality product and is designed for troublefree operation. In the event that a fault should occur, it will be indicated on the heat pump manager display. In this case, consult the “Faults and troubleshooting” page in the operating instructions of the heat pump manager. If you cannot correct the fault yourself, please contact your after-sales service technician.
CAUTION!
Before opening the device, ensure that all circuits are disconnected from the power supply!
After disconnecting the power supply, always wait for at least 5 minutes to allow stored electric charges to dissipate.
CAUTION!
Work on the heat pump must only be performed by authorised and qualified after-sales service technicians!

Decommissioning / disposal

Before removing the heat pump, disconnect it from the power source and close all valves. The heat pump must be dismantled by trained personnel. All environmentally-relevant requirements regarding the recovery, recycling and disposal of materials and components should be observed in accordance with the applicable standards. Particular attention should be paid to the proper disposal of refrigerants and refrigerant oils.

 Device information

1. Operating limits must be observed in the project planning stage. For detailed information, see the operating limits diagram. Operating restrictions are to be expected in the event of non-compliance. The intended use is within the operating limits shown. The heat pump is optimised for the application of space heating in accordance with EN14825. For projects involving continuous operation with heat-source infeed temperatures of greater than +17 °C, the operating limits shown are to be complied with using downstream hydraulic equipment, for example.
2. Tonal component according to DIN 45681 Table 1 is 0 dB
3. The specified sound pressure level corresponds to the operating noise of the heat pump in heating operation at 55 °C flow temperature. 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.
4. Note that additional space is required for pipe connections, operation and maintenance.
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 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, e.g. B0 / W55, have the following meaning: Heat source temperature 0 °C and heating water flow temperature 55 °C.
6. . See CE declaration of conformity
7. The heat circulating pump and the heat pump manager must always be ready for operation.
8. The coefficients of performance are valid with the circulating pumps included in the scope of supply.

Product information as per Regulation (EU) No 813/ 2013, Annex II, Table

2

Information requirements for heat pump space heaters and heat pump combination heaters

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.
Parameters shall be declared for average climate conditions:

1  Dimension Drawings
1.1 Dimension Drawing

2  Diagrams
2.1  Characteristic Curves

2.2Operating limits diagram

3 Circuit Diagrams
3.1  Control 

3.2  Control

3.3 Last / Load / Charge SI 90TU

3.4 Connection Plan

3.5  Connection Plan

3.6  Legend

A1| Utility block (EVU) bridge must be inserted if no utility blocking contactor is present (contact open = utility block).
---|---
A2| Block bridge: Must be removed when the input is being used (input open = HP blocked).
A3| M11 link cable fault: must be removed when the input is being used (input open = M11 fault)
A11| Solar bridge: When a solar energy module is used, the bridge must be removed and the solar energy module connected to the terminal connections.
A – R2| Return sensor bridge: – Must be moved when a dual differential pressureless manifold and a
“heating circuit reversing valve” are used. New terminal connections: X3/1 and X3/2
B2| Low-pressure switch, primary circuit
B3| Hot water thermostat
B4| Swimming pool water thermostat
E1| Oil sump heater M1
E2| Oil sump heater M2
E9| Immersion heater for hot water
E10| 2ndheat generator
F2| Fuse for plug-in terminals J12; J13 and J21 5×20 / 5.0AT
F3| Fuse for plug-in terminals J14 to J18 and J22 5×20 / 5.0AT
F4| High-pressure switch
F5.2| Low-pressure switch brin-to water heat pump
F5.1| Low-pressure switch water-to water heat pump
F7| Hot gas thermostat
F10.1| Flow rate switch for primary circuit
F10.2| Flow rate switch for secondary circuit
F12| Fault signaling contact N7
F13| Fault signaling contact N8
[H5]| Remote fault indicator lamp
J1| Voltage supply
J2-3| Analogue inputs
J4| Analogue outputs
J5| Digital inputs
J6| Analogue outputs
J7-8| Digital inputs
J10| Control panel
J11| free
J12-J18| 230 V AC outputs
J19| Digital inputs
J21-22| Analogue outputs; Analogue inputs, Digital inputs
J20| Digital outputs
J23| Bus connection external
J24| Power supply for components
J25| Interface
J26| Bus connection internal
K1| Contactor M1
K3| Contactor M3
K20| Contactor E10
K21| Contactor E9
K22| Utility blocking contactor
K23| Auxiliary relay for disable contactor
K31.1| Domestic hot water circulation request
KM11| Auxiliary relay  M11
KM16| Auxiliary relay  M16
M1| Compressor 1
M3| Compressor 2
M7| Actuator for expansion valve
M11| Primary circuit pump
M13| Heat circulating pump
M15| Heat circulating pump for heating circuit 2
M16| Auxiliary circulating pump
M18| Hot water loading pump
[M19]| Swimming pool circulating pump
M21| Mixer for main circuit or heating circuit 3
M22| Mixer for heating circuit 2
[M24]| Domestic hot water circulating pump
N1| Control unit
N7| Soft start control M1
N8| Soft start control M3
N14| Control panel
N17| pCOe module
N20| Thermal energy meter
N23| Control for electronic expansion valve EV
connection (1=green; 2=yellow; 3=brown;
4=white)
N24| Smart RTC
R1| External sensor
R2| Return sensor for heating circuit
R2.1| Return sensor for heating circuit in dual
differential pressureless manifold
R3| Hot water sensor
R5| Sensor heating circuit 2
R6| Flow sensor for primary circuit
R7| Coding resistor
R9| Flow sensor for heating circuit
R13| Renewable sensor, room sensor, sensor for heating circuit 3
R24| Return sensor, primary circuit
R25| Pressure sensor for refrigerating circuit low pressure pO
R26| Pressure sensor for refrigerating circuit high pressure pc
R27| Suction gas sensor
T1| Safety transformer 230 / 24 V AC
T2| Safety transformer 230 / 24 V AC
X1| Terminal strip, infeed
X2| Terminal strip voltage = 230 V AC
X3| Terminal strip, extra-low voltage < 25 V AC
X6| Oil sump heater terminal strip
| Components must be connected / supplied by the
customer
[ ]| Flexible switching – see pre-configuration
(changes by after-sales service only!)
––––––| Wired ready for use
– – – – – –| To be connected by the customer as required

ATTENTION !
Plug-in terminals N1-J1 to J11, J19, J20, J23 to J26 and terminal strip X3 and X30 are connected to extra-low voltage. A higher voltage must on no account be connected.
4  Hydraulic integration diagrams /
4.1  Monovalent heat pump system with three
heating circuits and domestic hot water preparation / Installation

4.2Bivalent system with two heating circuits and domestic hot water preparation 

4.3  Legend

| Check valve
---|---
| Shutoff valve
| Dirt trap
| Three-way mixer
| Circulating pump
| Expansion vessel
| Room temperature-controlled valve
| Shutoff valve with check valve
| Shutoff valve with drainage
| Safety valve combination
| Heat consumer

| Four-way reversing valve
| Temperature sensor
| Flexible connection hose
| Check valve
12| Brine-to-water heat pump
3| Buffer tank connected in series
4| Hot water cylinder
E9| Flange heater, hot water
E10.2| Oil / gas boiler
M11| Primary circulating pump
M13| Heat circulating pump
M15| Heat circulating pump for heating
circuit 2
M16| Auxiliary circulationpump
M18| Hot water loading pump
M21| Mixer for main circuit or heating circuit 3
M22| Mixer for heating circuit 2
N1| Heat pump manager
R1| External wall sensor
R2| Return flow sensor
R3| Hot water sensor
R13| Temperature sensor for heating circuit 2 Sensor for heating circuit 3 /
R5| renewable sensor

5 Declaration of Conformity
You can find and download the current CE conformity declaration at: https://glendimplex.de/si90tu

Glen Dimplex Deutschland
Zentrale
Glen Dimplex Deutschland GmbH
Am Goldenen Feld 18
D-95326 Kulmbach
T +49 9221 709-100
F +49 9221 709-339
dimplex@glendimplex.de
www.glendimplex.de| Verkauf und Planung
Projektierung
Projektierung Ihrer Projekte und
Planungsunterstützung.
T +49 9221 709-101
F +49 9221 709-924101
---|---
Geschäftsstelle Österreich
Glen Dimplex Austria GmbH
Hauptstraße 71
A-5302 Henndorf am Wallersee
T +43 6214 20330
F +43 6214 203304
info@dimplex.at
www.dimplex.at| Auftragsabwicklung
Bestellungen und Liefertermine
T +49 9221 709-200
F +49 9221 709-924200
Mo – Do: 7:30 bis 17:00 Uhr
Fr: 7:30 bis 16:00 Uhr
orders@glendimplex.de
Office France
Dimplex SAS
Solutions Thermodynamiques
25A rue de la Sablière
F-67590 Schweighouse Sur Moder

T +33 3 88 07 18 00
F +33 3 88 07 18 01
dimplex-ST@dimplex.de
www.dimplex.de/fr

| Service und Technischer Support
Kundendienst, Technische Unterstützung und Ersatzteile  Hilfestellung vor undnach
Installation Ihrer Geräte
T +49 9221 709-545
F +49 9221 709-924545
Mo – Do: 7:30 bis 16:30 Uhr
Fr: 7:30 bis 15:00 Uhr
service-dimplex@glendimplex.de
Außerhalb der Öffnungszeiten steht
Ihnen in Notfällen unsere 24// Hotline
zu Verfügung
Kundendienst im Internet beauftragen:
www.glendimplex.de/dienstleistungen-dimplex

www.glendimplex.de
452237.66.57b · FD 0209
A-XV

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