SPECIAL INFORMATION AND OPERATION
The chapters "Special information" and "Operation" are intended for both users and qualified contractors. The chapter "Installation" is intended for qualified contractors.
Read these instructions carefully before using the appliance and retain them for future reference. Pass on these instructions to a new user if required.
1. General information
1.1 Relevant documents
- Instructions for the WPM heat pump manager
- Operating and installation instructions for system components
- Appliance commissioning checklist
1.2 Safety instructions
1.2.1 Structure of safety instructions
KEYWORD: Type of risk. !: Possible consequences. f: Steps to prevent the risk.
1.2.2 Symbols, type of risk
| Symbol | Type of risk |
|---|---|
| ! | Injury, Electrocution |
1.2.3 Keywords
| KEYWORD | Meaning |
|---|---|
| DANGER | Failure to observe this information will result in serious injury or death. |
| WARNING | Failure to observe this information may result in serious injury or death. |
| CAUTION | Failure to observe this information may result in non-serious or minor injury. |
1.3 Other symbols in this documentation
| Symbol | Meaning |
|---|---|
| ℹ️ | General information is identified by this symbol. Read these texts carefully. |
| ! | Material losses (appliance damage, consequential losses and environmental pollution), Appliance disposal. |
| f | This symbol indicates that you have to do something. The action you need to take is described step by step. |
1.4 Information on the unit
| Symbol | Meaning |
|---|---|
| [Low flammability refrigerant] | Refrigerant with low flammability |
1.5 Units of measurement
All measurements are given in mm unless stated otherwise.
1.6 Standardised output data
Information on determining and interpreting the specified standardised output data.
1.6.1 EN 14511
Output data is calculated according to EN 14511 test conditions. Deviations may occur for air/water inverter heat pumps at source temperatures > -7 °C (partial load values). The associated percentage weighting can be found in EN 14825 and EHPA quality label regulations. Test conditions at the installation site may differ considerably from standard conditions. Factors influencing test values include measuring equipment, system configuration, age, and flow rates. Confirmation of specified output data requires testing according to the defined conditions.
2. Safety
2.1 Intended use
Observe application limits in chapter "Specification / Data table". The appliance is intended for domestic use and can be used safely by untrained persons. It can also be used in non-domestic environments (e.g., small businesses) if used in the same way. Any other use is inappropriate. Observation of these instructions and accessory instructions is part of correct use.
2.2 General safety instructions
Observe all applicable safety instructions and regulations.
- Only qualified contractors may carry out electrical work and installation.
- The qualified contractor is responsible for adherence to all applicable regulations during installation and commissioning.
- The appliance should only be operated once it is fully installed and all safety equipment has been fitted.
- Protect the appliance from dust and dirt during building work.
WARNING Injury: The appliance may be used by children over 8 years of age and persons with reduced physical, sensory or mental capabilities or a lack of experience and expertise, provided that they are supervised or have been instructed on how to use the appliance safely and have understood the potential risks. Children must never play with the appliance. Cleaning and user maintenance must not be carried out by children without supervision.
WARNING Injury: For safety reasons, only operate the appliance with the casing closed.
3. Appliance description
3.1 Minimum software versions
- WPM: 449.05
- FES: 502.03
3.2 Properties
This appliance is an air source heat pump designed for outdoor installation. It extracts heat from outdoor air and transfers it to heating water, capable of reaching flow temperatures up to 75 °C. It is equipped with an electric emergency/booster heater (NHZ) for safeguarding heating operation and DHW temperatures. The appliance is suitable for underfloor and radiator heating systems, continues to extract heat down to -25 °C outside temperature, and features a corrosion-protected, stove-enamelled casing. It comprises all necessary components and safety equipment, including a safety valve to prevent refrigerant entering the heating circuit in case of a leak. A WPM heat pump manager is required for centralised control.
3.3 Function
3.3.1 Heating
Heat is extracted from outdoor air via the evaporator. A compressor raises the refrigerant's temperature. A condenser transfers this heat to the heating circuit. The refrigerant then expands, restarting the cycle. At air temperatures below approx. 7 °C, hoarfrost forms on the evaporator fins and is automatically defrosted. Water from defrosting collects in the defrost pan and drains off.
! Material losses: During the defrost cycle, the fan is switched OFF and the heat pump circuit is reversed. Heat for defrosting is drawn from the buffer cylinder. For operation without a buffer cylinder, observe chapter "Menu / Menu description / SETTINGS / HEATING / STANDARD SETTING / BUFFER OPERATION" in the WPM installation instructions. Otherwise, the heating water may freeze under unfavourable conditions. The heat pump automatically reverts to heating mode at the end of the defrost cycle.
! Material losses: In dual mode operation, return water from the second heat generator may flow through the heat pump. Please note that the return temperature must be no higher than 65 °C.
3.3.2 Cooling
! Material losses: The heat pump is not suitable for continuous, year-round cooling. Observe the application limits (see chapter "Specification / Data table").
! Material losses: In cooling mode, condensate can form when the dew point temperature is undershot. Take suitable measures to prevent the formation of condensate.
Rooms are cooled by reversing the heat pump circuit, extracting heat from the heating water and transferring it to the outdoor air. Area cooling and fan cooling require a remote control unit (FET) for dew point monitoring. Fan cooling also requires a buffer cylinder. The heat pump switches OFF if the outside temperature falls below the selected lower application limit for cooling.
4. Settings
The system is operated exclusively via the WPM heat pump manager. Please observe the instructions for the heat pump manager.
5. Maintenance and care
! Material losses: Only qualified contractors may perform maintenance work, such as electrical safety checks.
A damp cloth is sufficient for cleaning all plastic and sheet metal parts. Never use abrasive or corrosive cleaning agents. Regularly check the condensate drain (visual inspection). Remove any contaminants and blockages immediately.
Diagram description: A diagram shows an inspection port on the appliance.
! Material losses: Keep the air discharge and intake apertures free from snow and leaves.
Remove any leaves or other foreign bodies from the evaporator fins periodically. We recommend regular inspection and maintenance by a qualified contractor.
Troubleshooting (Maintenance and Care)
| Fault | Cause | Remedy |
|---|---|---|
| Water drips from the safety valve. | Loss of water pressure in the heating system. | Use the inspection port to check if water is passing from the safety valve hose into the condensate pan. Call your qualified contractor. |
| Condensate is collecting on the outside of the appliance. | The heat pump extracts heat from the outdoor air, causing humidity to condense as dew or frost on the cooled casing. This is not a defect. | - |
| The fan runs when the compressor is switched OFF. | At outside temperatures below 10 °C, the fan regularly starts at the lowest speed when the compressor is idle to prevent evaporator/fan freezing. At temperatures above freezing, the time between defrost cycles increases for improved efficiency. | - |
| The appliance produces rhythmic scraping or grinding noises. | Ice has formed on the air grille, fan blades, or in the air routing. | Call your qualified contractor (see chapter "Installation / Troubleshooting / Fan noise"). |
Even when condensate drains correctly, it is not unusual for water to drip from the appliance onto the floor.
If you cannot remedy the fault, contact your qualified contractor. Provide the number from the type plate.
Diagram description: A sample type plate is shown.
6. Troubleshooting (Operation)
| Fault | Cause | Remedy |
|---|---|---|
| There is no hot water or the heating system remains cold. | No power at the appliance. | Check the fuses / MCBs in your fuse box / distribution board. Notify your qualified contractor if fuses/MCBs trip again after switching the system back on. |
| Water is leaking from the appliance. | The condensate drain may be blocked. | Clean the condensate drain as described in "Maintenance and care". |
| The heater gets warm, but the rooms are not heated to the required temperature. | The dual mode temperature is set too low. | Increase the dual mode temperature to e.g. 0 °C. |
| The building is a new build and is in the screed drying phase. | Increase the dual mode temperature to +5 °C. After 1 to 2 years, the dual mode temperature can be reset to e.g. -3 °C. |
INSTALLATION
7. Safety
Only a qualified contractor should carry out installation, commissioning, maintenance, and repair of the appliance.
7.1 General safety instructions
We guarantee trouble-free function and operational reliability only if original accessories and spare parts intended for the appliance are used.
7.2 Instructions, standards and regulations
Observe all applicable national and regional regulations and instructions.
The appliance conforms to IEC 61000-3-12. The appliance meets the specified standard, as long as it is operated in accordance with EN 61000-3-11:2000 para. 4a.
8. Appliance description
The appliance offers frost protection for the connection lines. The integral frost protection circuit starts the circulation pump automatically at a condenser temperature of 8 °C, ensuring circulation in all water-carrying sections. If the temperature inside the buffer cylinder drops, the heat pump starts automatically no later than when the temperature falls below +5 °C.
8.1 Accessories
8.1.1 Required accessories
- Heat pump manager (WPM)
8.1.2 Additional accessories
- Hydraulic module (HM(S), HM(S) Trend)
- Integral cylinders (HSBC 200 (S)(GB)(BE), HSBC 300 cool)
- Cylinder and hydraulic module (HSBB 200 (S)(GB)(BE))
- Remote control (FET, FE7)
- Ribbon heater (HZB 1, HZB 2)
- High limit safety cut-out for area heating system (STB-FB)
- Heating circuit pump (UP 25/7.5 PCV)
- T-support (SK 1)
- Wall mounting bracket (WK 2)
- Mounting bracket (MK 1)
- Connection set (AS-WP 1, AS-WP 2)
9. Preparation
Diagram description: A diagram shows a connection set AS-WP 2.
The appliance is designed for siting in front of a wall. Observe the minimum clearances. If the appliance is installed in an open space or on a roof, protect the air intake side by erecting a wall to shield it against the wind.
9.1 Sound emissions
The appliance is louder on the air intake and air discharge sides than on the two enclosed sides. Take the following information into account when selecting the installation location.
For details regarding the sound power level, see chapter "Specification / Data table".
- Lawn areas and shrubs help reduce the spread of noise.
- Noise propagation can also be reduced through dense palisades or similar.
f Ensure that the entire appliance frame is in full contact with the substrate. Uneven substrates can increase sound emissions.
f Ensure that the air intake direction is the same as the main wind direction. Air should not be drawn in against the wind.
f Ensure that the air intake and air discharge are never directed towards noise-sensitive rooms of the house, e.g. bedrooms, or neighbouring houses.
f Avoid installation on large, echoing floor areas, e.g. tiled floors.
f Avoid installation between reflective building walls. Reflecting building walls can increase the noise level.
9.2 Safety clearances as required by the safety concept
WARNING Injury: Refrigerant is heavier than air. In the case of leaks, escaping refrigerant can enter rooms beneath the installation site through open windows. If refrigerant escapes from the appliance, it sinks and displaces the air. There is risk of suffocation.
f Install the appliance at an adequate distance from light wells.
f Ensure that the appliance is not installed in front of or above supply air, extract air or other ventilation equipment.
In order to comply with the appliance's safety concept, safety clearances to light wells must be observed.
Diagram description: Diagrams illustrate safety clearances for installation on a foundation (light well at ground level, light well above ground level) and installation on a mounting bracket, specifying minimum distances.
9.3 Minimum clearances
Diagram description: Diagrams show minimum clearances for cascades and general installation, illustrating air intake, air discharge, main wind direction, and wall/wind protection. A diagram also shows minimum clearances for installation in coastal areas.
f Maintain the minimum clearances to ensure trouble-free operation of the appliance and facilitate maintenance work.
f Never install the appliance in a recess. Two sides of the appliance must remain exposed.
! Material losses: Please note that both the flow of outdoor air into the appliance, and the flow of exhaust air from the appliance must be unimpeded. If the air intake and discharge of the appliance are obstructed by surrounding objects, this may cause a thermal short circuit.
9.3.1 Minimum clearances with cascades
If the appliance is installed close to light wells, it is essential that you observed the safety clearances to those light wells (see chapter "Safety clearances as required by the safety concept").
9.3.2 Installation in coastal areas
f Protect all pipe fixings and external wall ducts with anti-vibration insulation.
When routing the condensate hose, observe chapter "Installation / Condensate drain".
f Ensure that the air intake direction is the same as the main wind direction. If the main wind direction is from the sea (> 2 % salinity), ensure that the installation is at least 500 m from the sea.
9.4 Preparing the installation location
WARNING Injury: The discharged cold air can cause condensation to be formed in the vicinity of the air discharge. Ensure that no risk of slipping due to wet conditions or ice formation occurs on adjacent footpaths and driveways at low temperatures.
f Observe chapter "Sound emissions".
f Ensure that the appliance is not installed in front of or above supply air, extract air or other ventilation equipment.
f Ensure that the appliance is accessible from all sides.
f Ensure that the substrate is level, even, solid and permanent.
f Provide a recess (space) in the base to enable supply lines to be routed into the appliance from below.
9.5 Installing the supply lines
WARNING Injury: Seal all supply line entries into the building to ensure that they are watertight.
9.6 Siting
f When siting the appliance, observe the air discharge direction.
f Position the appliance on the prepared substrate or on a suitable support.
9.6.1 Installation on foundation or MK 1 mounting bracket
Diagram description: Diagrams show installation on foundations with a recess for supply lines and condensate drain, and installation on an MK 1 mounting bracket. The diagrams illustrate dimensions, frost line depth, and connection points for heating flow/return and condensate drain conduit.
Allow the conduits for the supply lines to protrude slightly above the foundations. Ensure that no water can enter the conduits.
The supply lines include electric cables plus the flow and return lines.
- To facilitate connection to the appliance, flexible supply lines are recommended.
- Protect all supply lines against humidity, damage and UV radiation by means of a conduit.
- Use only weatherproof cables, e.g. NYY.
- Protect the flow and return lines against frost with sufficient thermal insulation. The thermal insulation must be at least twice as thick as the diameter of the pipe. Provide thermal insulation in accordance with applicable regulations.
Diagram description: Diagrams show installation on foundations and on an MK 1 mounting bracket, detailing dimensions and connection points.
The mounting bracket cannot be used in combination with the connection sets (AS-WP 1 and AS-WP 2).
f Hook two brackets respectively into the lateral slots on the front and back. Ensure you are using the correct brackets for the left and right hand slots respectively.
f Position the brackets so that the groove on the bracket is hooked into the appliance.
f Secure the appliance to the foundations using the brackets and suitable rawl plugs and screws. Do not use the screws with which the appliance was secured to the transport pallet.
9.6.2 Installation on strip foundation
Diagram description: Diagrams show installation on a strip foundation, illustrating dimensions, frost line depth, and connection points for heating flow/return and condensate drain conduit. It also shows how to secure the appliance using brackets.
f Erect a strip foundation at ground level.
f Lay the condensate drain pipe.
f Fill in with gravel up to the top edge of the strip foundation.
f Hook two brackets respectively into the lateral slots on the front and back. Ensure you are using the correct brackets for the left and right hand slots respectively.
f Position the brackets so that the groove on the bracket is hooked into the appliance.
f Secure the appliance to the foundations using the brackets and suitable rawl plugs and screws. Do not use the screws with which the appliance was secured to the transport pallet.
9.6.3 T-support SK 1
Diagram description: Diagrams show installation on a T-support SK 1, detailing dimensions, frost line depth, and connection points for heating flow/return, supply line conduit, condensate drain, and ribbon heater. It also shows how to secure the appliance using brackets.
Install a ribbon heater when mounting on the wall bracket or T-support (see chapter "Electrical connection / Ribbon heater").
f Observe the structural limits of the T-support used.
f See the dimensioned connection drawing for the correct spacing between holes (see chapter "Specification / Dimensions and connections").
9.6.4 Wall mounting support WK 2
Diagram description: Diagrams show installation on a wall mounting bracket WK 2, detailing dimensions and connection points for heating flow/return, condensate drain, and ribbon heater. It also shows how to secure the appliance using brackets.
Install a ribbon heater when mounting on the wall bracket or T-support (see chapter "Electrical connection / Ribbon heater").
To prevent disturbance due to structure-borne noise transmission, never install the wall mounting bracket on the external walls of living areas or bedrooms. Install the wall mounting bracket on a garage wall, for example.
f Observe the structural limits of the wall mounting bracket used.
f See the dimensioned connection drawing for the correct spacing between holes (see chapter "Specification / Dimensions and connections").
9.7 WPM heat pump manager
A WPM heat pump manager is required to operate the appliance. This controls the entire heating system. Observe the WPM installation instructions during installation.
9.8 Buffer cylinders
! Material losses: A buffer cylinder with diffusion-proof insulation is essential to enable cooling by means of fan convectors.
If cooling is provided via an area heating system, the buffer cylinder is not required.
We recommend the use of a buffer cylinder to ensure trouble-free appliance operation. The buffer cylinder provides hydraulic separation of the volume flows in the heat pump circuit and heating circuit, and also serves as an energy source for defrosting. When operating without a buffer cylinder, observe the details specified in the chapter "Commissioning / Checking the flow rate".
9.9 Preparing the electrical installation
WARNING Electrocution: Carry out all electrical connection and installation work in accordance with national and regional regulations.
WARNING Electrocution: The connection to the power supply must be in the form of a permanent connection. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3 mm contact separation. This requirement can be met by contactors, isolators, fuses, etc.
! Material losses: The specified voltage must match the mains power supply. Observe the type plate.
! Material losses: Provide separate fuses/MCBs for the three power circuits, i.e. those of the appliance, the control unit and the electric emergency/booster heater.
The appliance includes an inverter for the variable speed compressor. In the event of an error, inverters can cause DC residual currents. If RCDs are provided, they must be type B AC/DC-sensitive. A DC residual current can block type A RCDs.
f Ensure that the appliance power supply is disconnected from the distribution board.
The electrical data can be found in the chapter "Specification". You require a screened J-Y (St) 2x2x0.8 mm² cable as a bus cable.
f Use cables with the relevant cross-sections. Observe the applicable national and regional regulations.
| Fuse protection | Assignment | Cable cross-section |
|---|---|---|
| 1x B 25 A | Compressor | 2.5 mm² when routing above the surface 4.0 mm² when routing in a wall |
| Alternatively: 1x B 16 A | Compressor | 2.5 mm² when routing above the surface 4.0 mm² when routing in a wall |
| 2x B 16 A | Electric emergency/booster heater | 2.5 mm² |
| 1x B 16 A | Controller | 1.5 mm² |
You can safeguard the compressor using the alternative, smaller fuse protection. If you select a lower fuse protection for the compressor, you will need to limit the maximum power consumption. In the COMMISSIONING / COMPRESSOR menu, adjust the MAXIMUM CURRENT parameter. Observe the information in the commissioning instructions for the heat pump manager.
The cable cross-section must correspond to the appliance's maximum possible operating current (see "Specification/Data tables").
Output reduction in the case of 16 A compressor fuse protection
If you select 16 A fuse protection, at flow temperatures below 55 °C, the output is not reduced. At flow temperatures above 55 °C and the specified outside temperatures, the output is reduced.
| Source temperature [°C] | Flow temperature [°C] | Output reduction [%] |
|---|---|---|
| WPL-A 07 HK 230 Premium | ||
| 7 | 65 | 11 |
| 75 | 19 | |
| 2 | 65 | 11 |
| 75 | 21 | |
| -7 | 75 | 4 |
10. Installation
The device is designed in such a way that it can be positioned and connected without removing the cover or side panels.
10.1 Transport
f When transporting the appliance, be aware of its centre of gravity. The centre of gravity is in the area where the compressor is located.
f Protect the appliance against heavy impact during transport.
f Use the recessed grips provided at the sides.
Diagram description: A diagram shows the appliance with indicated centre of gravity and recessed grips.
f If the appliance needs to be tilted during transport, this must only be for a short time and it must only be tilted on one of its longitudinal sides. When transporting the appliance, ensure the compressor is on the upper appliance side.
f The longer the appliance is tilted, the greater the distribution of refrigerant oil inside the system.
f Wait approximately 30 minutes before starting the appliance after it has been tilted.
10.2 Heating water connection
! Material losses: The heating system to which the heat pump is connected must be installed by a qualified contractor in accordance with the water installation drawings that are part of the technical guide.
To facilitate connection to the heating system, push-fit connectors are enclosed with the appliance (see chapter "Fitting the push-fit connectors").
f Before connecting the heat pump, flush the pipework thoroughly with suitable water. Foreign bodies, such as welding pearls, rust, sand or sealant can impair the operational reliability of the heat pump.
f Connect the heat pump on the heating side. Check for tightness.
f Ensure that the heating flow and return are connected correctly.
f Provide thermal insulation in accordance with applicable regulations.
f When sizing the heating circuit, observe the internal pressure differential (see chapter "Specification / Data table").
10.3 Flow and return connection
! Material losses: In cooling mode, condensate can form when the dew point temperature is undershot. Take suitable measures to prevent the formation of condensate.
Diagram description: A diagram shows the flow and return connections, labeled 1 (Heating flow), 2 (Heating return), 3 (Drain), and 4 (Ventilation).
f Connect the heat pump to the heating circuit. Check for tightness.
10.4 Fitting the push-fit connectors
The plastic push-fit connectors are not suitable for installation in the DHW line or the solar circuit. Install the push-fit connectors only in the heating circuit.
! Material losses: Tighten the screw cap of the push-fit connector by hand. Never use a tool.
! Material losses: To ensure the push-fit connector is held securely, pipes with a surface hardness > 225 HV (e.g. stainless steel) must have a groove. Using a pipe cutter, cut a groove (depth approx. 0.1 mm) at a defined distance from the end of the pipe.
- Pipe diameter 22 mm: 17±0.5 mm
- Pipe diameter 28 mm: 21±0.5 mm
| Pipe | Depth of insertion |
|---|---|
| 28 mm | max. 44 mm |
! Material losses: Pipe ends must be deburred.
f Always use a pipe cutter to trim pipes.
f Push the pipe past the O-ring into the push-fit connector until it reaches the prescribed insertion depth.
f Tighten the screw cap by hand against the main body as far as it will go. This secures the push-fit connection.
Undoing the push-fit connection
f Turn the screw cap anti-clockwise until there is a narrow gap of approx. 2 mm. Press the retainer back with your fingers and hold on to it.
f Pull out the inserted pipe.
Diagram description: Diagrams illustrate how push-fit connectors work, showing the retainer, screw cap, gap, and main body. Another diagram shows the process of making and undoing a push-fit connection.
10.5 Oxygen diffusion
! Material losses: Do not use open vented heating systems. Use oxygen diffusion-proof pipes in underfloor heating systems with plastic pipework. In underfloor heating systems with plastic pipes that are permeable to oxygen and in open vented heating systems, oxygen diffusion may lead to corrosion on the steel components of the heating system (e.g. on the indirect coil of the DHW cylinder, on buffer cylinders, steel radiators or steel pipes).
f With heating systems that are permeable to oxygen, separate the heating system between the heating circuit and the buffer cylinder.
! Material losses: The products of corrosion (e.g. rusty sludge) can settle in the heating system components, which may result in a lower output or fault shutdowns due to reduced cross-sections.
10.6 Filling the heating system
Carry out a fill water analysis before filling the system. This analysis may, for example, be requested from the relevant water supply utility.
! Material losses: To avoid damage as a result of scaling, it may be necessary to soften or desalinate the fill water. The fill water limits specified in chapter "Specification / Data table" must always be observed. Recheck these limits 8-12 weeks after commissioning, every time the system is topped up and during the annual service.
With a conductivity >1000 µS/cm, desalination treatment is recommended in order to prevent corrosion.
Suitable appliances for water softening and desalinating, as well as for filling and flushing heating systems, can be obtained from trade suppliers.
Do not add inhibitors or additives to the filling water.
Diagram description: A diagram shows a safety valve.
10.6.1 Safety concept
WARNING Injury: A safety valve is built into the appliance. Only a safety valve with the same opening pressure can guarantee the correct functioning of the safety concept.
f Do not replace the safety valve with another valve that has a different opening pressure.
f Always use original spare parts.
Note: The safety valve opens if the opening pressure is exceeded. The escaping medium passes into the condensate pan via a built-in hose.
| Opening pressure [bar] | Tolerance [bar] |
|---|---|
| 2.5 | +0.15 / -0.35 |
Only safety valves with an opening pressure of 3 bar may be installed in the heating system.
10.6.2 Filling the heating system
f Fill the heating system via the drain (see chapter "Specification / Dimensions and connections").
f After filling the heating system, check the connections for leaks.
10.6.3 Venting the heating system
Automatic air vent valve
Diagram description: Diagrams show an automatic air vent valve and an air vent valve on the inverter.
f Remove the cover (see chapter "Troubleshooting / Checking the IWS DIP switch settings").
The air vent valve is factory-fitted in the open position. The heating system is ventilated automatically. Vent the pipework by activating the ventilation.
10.7 Condensate drain
A condensate drain connector is factory-fitted to the defrost pan to enable any condensate to drain off.
Diagram description: A diagram shows the condensate drain connector.
f Observe chapter "Electrical connection / Ribbon heater".
f If the appliance is sited on foundations, the condensate drips freely into the condensate drain pipe.
f If the appliance is mounted on a bracket or T-support, attach a condensate hose to the condensate drain.
f Protect the condensate hose against frost with sufficient thermal insulation.
! Material losses: Ensure the condensate hose is not kinked. Route the hose with a slope.
f After routing the condensate hose, check that the condensate can drain correctly.
10.8 External second heat generator
For dual mode systems, always connect the heat pump into the return of the second heat generator (e.g. oil boiler).
10.9 High limit safety cut-out for area heating system
! Material losses: In order to prevent excessively high flow temperatures in the area heating system causing damage in the event of a fault, install a high limit safety cut-out to limit the system temperature.
11. Electrical connection
The leakage current of this appliance can be > 3.5 mA.
Please observe the instructions for the heat pump manager.
The connection must only be made by a qualified contractor and in accordance with these instructions. You must have permission to connect the appliance from the relevant power supply utility.
11.1 Terminal area
f Push the cover upwards.
WARNING Electrocution: Before working on the appliance, isolate it from the power supply at the control panel.
The terminals are located in the terminal area of the appliance.
f Follow the instructions in the chapter "Preparation / Preparing the electrical installation".
f For all connections, use appropriate cables in accordance with local regulations.
Diagram description: Diagrams show access to the terminal area, which can be folded out if space is limited.
f Undo the screw on the terminal area.
f Pivot the terminal area to the side.
Diagram description: A diagram shows the terminal assignment for various connections including Earth screening, BUS, Control voltage, Electric emergency/booster heater, Compressor, and Ribbon heater.
f Earth the ELV lead by inverting the screen over the cable sheath and clamping it under the earth terminal.
f Then check that the strain relief fittings are working as intended.
Diagram description: A diagram shows how to close the terminal area, securing the cover with a screw and serrated washer.
XD02 connection: Electric emergency/booster heater (NHZ)
f Connect the electric emergency/booster heater. If the heating water temperature falls below 15 °C while defrosting, the emergency/booster heater is switched on. If on special systems you can ensure that no defrosting will occur, you need not connect the emergency/booster heater.
Additional functions of the emergency/booster heater:
| Appliance function | Effect of the electric emergency/booster heater |
|---|---|
| Mono energetic operation | If the dual mode point is undershot, the electric emergency/booster heater safeguards both the heating operation and the provision of high DHW temperatures. |
| Emergency mode | If the heat pump shuts down due to a fault, the heating output is covered by the electric emergency/booster heater. |
| Heat-up program (only for underfloor heating systems) | Where return temperatures are <25 °C, the electric emergency/booster heater must provide the necessary heat for screed drying. With such low system temperatures, the heat for screed drying must not be provided by the heat pump, otherwise the frost protection of the appliance can no longer be guaranteed during the defrost cycle. When the heat-up program has ended, the electric emergency/booster heater can be disconnected if it is not required for appliance operation. Please note that during the heat-up program, emergency mode is not available. |
| Pasteurisation mode | The electric emergency/booster heater starts automatically when pasteurisation mode is active. The DHW is then regularly heated to 60 °C to protect it against the growth of legionella bacteria. |
11.2 Ribbon heater
A ribbon heater (see chapter "Installation / Appliance description / Accessories / Additional accessories") can be connected to the condensate pan and hose.
f Install a ribbon heater when mounting on the wall bracket or T-support. When installing on foundations or the mounting bracket, we recommend installing a ribbon heater if the routing of the condensate hose means it is at risk of frost or is fully exposed to the elements.
f Guide the ribbon heater into the condensate drain pipe.
f Open the terminal area (see chapter "Electrical connection / Terminal area / Access to the terminal area").
f Route the electric cable from the ribbon heater to the terminal area from below.
f Make the electrical connection for the ribbon heater.
f Close the terminal area.
12. Commissioning
A WPM heat pump manager is required to operate the appliance. All necessary adjustments prior to and during operation are made on this device. Only a qualified contractor should carry out the settings in the heat pump manager commissioning instructions, commission the appliance and instruct the operator in its use. Carry out commissioning in accordance with these operating and installation instructions, and the instructions for the heat pump manager. Our customer support can assist with commissioning, which is a chargeable service. Observe the accompanying commissioning checklist.
Where this appliance is intended for commercial use, the rules of the relevant Operational Safety Ordinance must be observed at commissioning. For further details, check with your local authorising body (e.g. TÜV).
12.1 Checks before commissioning
Before commissioning, check the following:
12.1.1 Heating system
- Have you filled the heating system to the correct pressure and opened the quick-action air vent valve?
12.1.2 Temperature sensors
- Have you correctly positioned and connected the outside sensor and the return temperature sensor (in connection with a buffer cylinder)?
12.1.3 High limit safety cut-out
! At ambient temperatures below -15 °C it is possible that the high limit safety cut-out of the electric emergency/booster heater may trip.
f Check whether the high limit safety cut-out has tripped.
Diagram description: A diagram shows the electric emergency/booster heater with a reset button.
f Reset the high limit safety cut-out by pressing the reset button.
12.1.4 Power supply
- Have you correctly connected the power supply?
12.2 Using the appliance with an external second heat generator
The appliance is factory set for compressor operation with an electric emergency/booster heater. If the appliance is operated in dual mode with an external second heat generator, set the DIP switch to compressor mode with an external second heat generator (see chapter "Troubleshooting / Checking the IWS DIP switch settings").
12.3 Checking the flow rate
The minimum flow rate and the defrost energy must always be assured (see chapter "Specification / Data table"). When heating circuit temperatures are very low, in exceptional circumstances it is possible that the electric emergency/booster heater will be activated during a defrost operation in order to provide the required defrost energy.
The appliance is designed in such a way that no buffer cylinder is required in conjunction with appropriately sized area heating systems. Installations with several heating circuits require a buffer cylinder to be used. The setting is made in heat pump mode. In order to do this, firstly make the following settings:
f Temporarily remove the fuse from the electric emergency/booster heater to isolate the emergency/booster heater from the power supply. Alternatively, switch OFF the second heat generator.
f Ensure that hydronic balancing has been performed.
f Check the connected pumps against the hydraulic diagram.
12.3.1 Function test without buffer cylinder
If the appliance is operated solely through the WPM heat pump manager, and an external pump that is not controlled by the WPM is used as a heating circuit pump, you will have to adjust the heating circuit pump manually.
For systems without a buffer cylinder, one or more heating circuits in the system must remain open. The open heating circuit(s) must be installed in the lead room (room in which the external programming unit is installed, e.g. living room or bathroom). The lead room can be individually controlled using the external programming unit, or indirectly by adjusting the heating curve or activating room influence.
f Operate the appliance in heating mode.
f When designing underfloor heating in the lead room, observe our recommendations. The table applies if individual room control is installed.
| WPL-A 05 HK 230 Premium | WPL-A 07 HK 230 Premium | |
|---|---|---|
| Minimum flow rate of heat pump [l/h] | 640 | 640 |
| Minimum water content of the open heating circuits during operation without buffer cylinder [l] | 20 | 20 |
| Composite pipework 16 x 2 mm / installation spacing 10 cm | ||
| Lead room floor area [m²] | 21 | 21 |
| Number of circuits [n x m] | 3x70 | 3x70 |
| Composite pipework 20 x 2.25 mm / installation spacing 15 cm | ||
| Lead room floor area [m²] | 21 | 21 |
| Number of circuits [n x m] | 2x70 | 2x70 |
| Buffer cylinder always required | no | no |
| Buffer cylinder volume in relation to product range [l] | 80-200 | 80-200 |
| Activate the integral emergency/booster heater | Yes | Yes |
f Fully open the heating circuit(s) in the lead room.
f Close all other heating circuits.
f If an overflow valve is installed in the heating system, close this valve.
f Adjust the parameters.
| Parameter | Setting |
|---|---|
| MINIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | OFF |
| MAXIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | ON |
f Check the current flow rate.
| Parameter | Setting |
|---|---|
| WP WATER FLOW RATE (INFO / HEAT PUMP / PROCESS DATA) | [Value to be checked] |
f Compare the value with the minimum flow rate (see chapter "Specification / Data table").
Minimum flow rate has been reached: No further measures required.
f Reset the parameters to their original values.
| Parameter | Setting |
|---|---|
| MINIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | ON |
| MAXIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | OFF |
Minimum flow rate has not been reached: If the specified flow rate is not met, take suitable measures to achieve the flow rate.
- Open the heating circuit permanently in another room.
- Check the current flow rate.
- If the minimum flow rate is not reached, repeat these steps.
- Set the overflow valve correctly.
12.3.2 Function test with buffer cylinder
f Operate the appliance in heating mode.
f Adjust the parameters.
| Parameter | Setting |
|---|---|
| MINIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | OFF |
| MAXIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | ON |
f Check the current flow rate.
| Parameter | Setting |
|---|---|
| WP WATER FLOW RATE (INFO / HEAT PUMP / PROCESS DATA) | [Value to be checked] |
f Compare the value with the minimum flow rate (see chapter "Specification / Data table").
Minimum flow rate has been reached: No further measures required.
f Reset the parameters to their original values.
| Parameter | Setting |
|---|---|
| MINIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | ON |
| MAXIMUM PUMP RATE (COMMISSIONING / CHARGING PUMP CONTROL / STANDBY / TYPE OF CONTROL) | OFF |
Minimum flow rate has not been reached: Check the technical guide to the heating system.
12.3.3 Systems without a buffer cylinder
In systems without a buffer cylinder, the minimum flow rate of the heat pump must be ensured via permanently open heating circuits for the underfloor heating system. The design of the underfloor heating system determines the possible flow rate through the permanently open heating circuits. If the flow rate of the permanently open heating circuits is less than the minimum flow rate of the heat pump, check whether the available external delivery head of the heating circulation pump is sufficient.
Delivery head test
pUP* = (Vmin / VHKo)² * (pHK + pV) + pWP
- pUP: External delivery head of the circulation pump at Vmin
- * If the circulation pump is integrated in an indoor unit, the available external head can be found in the specification for the indoor unit.
- Vmin: Minimum flow rate of heat pump
- VHKo: Design flow rate of the permanently open heating circuits
- pHK: Design pressure drop of the permanently open heating circuits
- pV: Design pressure drop to and from floor distributors
- pWP: Pressure drop in the heat pump at Vmin
For heat pumps with an integral circulation pump, the pressure drop of the heat pump (pWP) is not taken into account.
If the external delivery head is not sufficient for the minimum flow rate, additional heating circuits for the underfloor heating must be permanently opened.
13. Settings
13.1 Activating spread control
f To adapt the appliance to your requirements, activate spread control.
| Parameter | Setting |
|---|---|
| SPREAD CONTROL (COMMISSIONING / CHARGING PUMP CONTROL / HEATING / TYPE OF CONTROL) | PWM pump without internal module |
| SPREAD CONTROL (COMMISSIONING / CHARGING PUMP CONTROL / DHW / TYPE OF CONTROL) | [Setting to be made] |
f Connect the pump.
- Mains power supply: X2.6
- Buffer charging pump 1: X2.8
- DHW charging pump: [Connection point]
f Adjust the parameters.
| Parameter | Meaning |
|---|---|
| PWM 100%...0% (I/O CONFIGURATION / OUTPUT X 1.16) | [Setting] |
| PWM 100%...0% (I/O CONFIGURATION / OUTPUT X 1.17) | [Setting] |
| CHARGING PUMP CONTROL HEATING (I/O CONFIGURATION / OUTPUT X 1.16 / OUTPUT) | [Setting] |
| CHARGING PUMP CONTROL DHW (I/O CONFIGURATION / OUTPUT X 1.17 / OUTPUT) | [Setting] |
f Fully open thermostatic or zone valves in a lead room (e.g. living room and bathroom). We do not recommend installing thermostatic or zone valves in the lead room. Control the temperature for these rooms via a remote control.
f At different outside temperatures (e.g. -10 °C and +10 °C), adjust the heating curve so that the required temperature is set in the lead room. Standard values to begin with:
| Parameter | Underfloor heating | Radiator heating system |
|---|---|---|
| Heating curve | 0.4 | 0.8 |
| Controller dynamics | 25 | 50 |
| Comfort temperature | 21 °C | 23 °C |
If the room temperature is too low in spring and autumn (approx. 10 °C outside temperature), go to heat pump manager menu SETTINGS / HEATING / HEATING CIRCUIT and raise the parameter COMFORT TEMPERATURE.
If no remote control is installed, raising the "COMFORT TEMPERATURE" parameter will lead to a parallel offset of the heating curve.
If the room temperature is too low at low outside temperatures, increase parameter "HEATING CURVE".
If the "HEATING CURVE" parameter has been raised and outside temperatures relatively high, adjust the zone valve or thermostatic valve in the lead room to the required temperature.
! Material losses: Never reduce the temperature in the entire building by closing all zone or thermostatic valves; instead use the setback programs.
When everything has been implemented correctly, the system can be heated to its maximum operating temperature and vented once again.
! Material losses: For underfloor heating systems, observe the maximum permissible system temperature for that particular underfloor heating.
13.2 Heating curve adjustment
The efficiency of a heat pump decreases as the flow temperature rises. Adjust the heating curve carefully. Heating curves that are set too high cause the zone valves or thermostatic valves to close, which may result in the minimum required flow rate in the heating circuit being undershot. Observe the WPM commissioning instructions.
The following steps will help you to adjust the heating curve correctly:
13.3 Reduced night mode (Silent mode)
f Look up the sound power level in the data table (see chapter "Specification / Data table").
To reduce the sound power level of the appliance for a specified period, you can set the appliance to night mode if required. You can specify the times during which the appliance is set to night mode using the time programs.
| Parameter | Meaning |
|---|---|
| PROGRAMS (SILENT PROGRAM 1) | reduced night mode |
| PROGRAMS (SILENT PROGRAM 2) | Appliance switched off |
Two versions of night mode are available for you to use.
13.3.1 Reduced night mode
When reduced night mode is active, this may result in higher running costs.
The output and fan control are infinitely variable. The table will tell you how the sound power level of the appliance changes as output and fan control are changed.
| WPL-A 05 HK 230 Premium | WPL-A 07 HK 230 Premium | ||||
|---|---|---|---|---|---|
| max. reduced night mode | reduced night mode | max. reduced night mode | reduced night mode | ||
| Meaning | Output and fans cannot be reduced below these levels. The appliance operates at the set reduced output or fan control. | ||||
| W55 | Sound power level [dB(A)] | 47 | 47 | 47 | 51 |
| Compressor speed [Hz] | 30 | 30 | 33 | 47 | |
| Fan control [%] | 42 | 42 | 44 | 51 | |
| Heating output [kW] | 2.7 | 2.7 | 3.2 | 4.9 |
f Adjust the fan control and compressor output in the heat pump manager.
| Parameter | Setting |
|---|---|
| OUTPUT (COMMISSIONING / SILENT MODE / OUTPUT REDUCTION) | [Setting] |
| FAN (COMMISSIONING / SILENT MODE / OUTPUT REDUCTION) | [Setting] |
13.3.2 Appliance switched off
If the appliance is switched off, central heating and DHW heating will be supplied solely through the emergency/booster heater. This will result in higher running costs.
f Switch the appliance off in the heat pump manager.
| Parameter | Setting |
|---|---|
| HEAT PUMP OFF (COMMISSIONING / SILENT MODE) | [Setting] |
13.4 Other settings
f For operation with or without a buffer cylinder, observe the information in the WPM instructions and the BUFFER OPERATION parameter in the SETTINGS / HEATING / STANDARD SETTING menu.
Using the heat-up program: If you use the heat-up program, make the following settings on the WPM:
f Initially set the "DUAL MODE TEMP HZG" parameter to 30 °C.
f Then set the "LOWER APP LIMIT HZG" parameter to 30 °C.
After completing the heat-up process, reset the "DUAL MODE TEMP HZG" and "LOWER APP LIMIT HZG" parameters to their respective standard values or to the respective system values.
14. Appliance handover
Explain the appliance function to users and familiarise them with how it works.
Hand over these operating and installation instructions to users for safekeeping. All information in these instructions must be closely observed. The instructions provide information on safety, operation, installation and maintenance of the appliance.
15. Appliance shutdown
! Material losses: Never interrupt the heat pump power supply, even outside of the heating season. Otherwise, system frost protection is not guaranteed. The heat pump manager automatically switches the heat pump to summer or winter mode.
15.1 Standby mode
To shut the system down, simply set the heat pump manager to "Standby mode". This way, the safety functions that protect the system remain enabled, e.g. frost protection.
15.2 Power interruption
If the system is to be isolated from the power supply permanently, please observe the following:
! Material losses: If the heat pump is completely switched OFF and there is a risk of frost, drain the system on the water side.
16. Maintenance
WARNING Electrocution: Prior to commencing any service or cleaning work, isolate the appliance across all poles from the power supply. Following disconnection from the power supply, parts of the appliance may remain energised for 2 minutes until the inverter capacitors have discharged.
We recommend a regular inspection (to establish the current condition of the system), and maintenance if required (to return the system to its original condition).
Diagram description: A diagram shows an inspection port on the appliance.
f Open the inspection port.
f Check the condensate drain (visual inspection). Remove any contaminants and blockages immediately.
! Material losses: Keep the air discharge and intake apertures free from snow and ice.
Remove any leaves or other foreign bodies from the evaporator fins periodically.
17. Troubleshooting
WARNING Electrocution: Before working on the appliance, isolate it from the power supply at the control panel. Following disconnection from the power supply, parts of the appliance may remain energised for 2 minutes until the inverter capacitors have discharged.
Please observe the instructions for the heat pump manager.
If the fault cannot be located during a service using the heat pump manager, open the control panel as an emergency measure and check the settings of the IWS (integrated heat pump control unit).
Diagram description: A diagram shows the IWS with components: 1 (Reset button), 2 (DIP switch WP-Typ), 3 (DIP switch BA), 4 (LEDs).
17.1 Checking the IWS DIP switch settings
Carry out the following steps to make the IWS accessible.
f Remove the cover.
DIP switch (WP-Typ)
The DIP switch (WP-Typ) on the IWS serves to set the relevant heat pump type.
Factory setting: Compressor mode with electric emergency/booster heater.
Diagram description: A diagram shows the WP-Typ DIP switch set for factory settings.
f Check whether the DIP switch is set correctly.
Compressor mode with an external second heat generator
! Material losses: In this case, do not connect the electric emergency/booster heater.
If the appliance is operated in dual mode operation with an external second heat generator or as a module with a further heat pump, set the DIP switch as shown.
Diagram description: A diagram shows the WP-Typ DIP switch set for compressor mode with an external second heat generator.
DIP switch (BA)
f Check whether the DIP switch (BA) is set correctly.
Diagram description: Diagrams show DIP switch (BA) settings for Heating mode and Heating and cooling operation.
17.1.1 Closing the terminal area
Diagram description: A diagram shows the terminal area cover being secured with screws.
f Position the cover on the appliance.
f Secure the cover with the four screws.
17.2 Light emitting diodes (LEDs)
Diagram description: A diagram shows the IWS with LEDs and the reset button.
The following table shows the meaning of the LEDs on the IWS.
| LED indicator | Meaning |
|---|---|
| Red LED flashes | Single fault. The appliance is shut down and restarts after 10 minutes. The LED goes off. |
| Red LED illuminates | More than 5 faults within 2 hours run. The appliance is shut down permanently and only restarts following a reset on the IWS. This also resets the internal fault counter. The appliance can be restarted after 10 minutes. The LED goes off. |
| Green LED (centre) flashes | The heat pump is initialising. |
| Green LED (centre) illuminates | The heat pump was initialised successfully and the connection with the WPM is active. |
Faults indicated by the red LED:
- High pressure fault
- Low pressure fault
- Central fault
- Hardware faults on the IWS (see Notification list on the WPM heat pump manager)
17.3 Reset button
If the IWS was not initialised successfully, you can reset the settings with this button. For this, also observe chapter "Reinitialising the IWS" in the heat pump manager instructions.
17.4 Resetting the high limit safety cut-out
The electric emergency/booster heater stops if the heating water temperature exceeds 85 °C, for example if the flow rate is too low.
Diagram description: A diagram shows the electric emergency/booster heater with a reset button.
f Remove the cause of the fault.
f Reset the high limit safety cut-out by pressing the reset button.
f Check whether the heating water is being circulated at a sufficiently high flow rate.
17.5 Fan noise
The heat pump draws heat from the outdoor air. This causes the outdoor air to cool down. At outside temperatures of 0 °C to 8 °C, the air may be cooled to below freezing point. If, under these conditions, precipitation occurs in the form of rain or fog, ice may form on the air grille, the fan blades or the air routing pipes. If the fan comes into contact with this ice, this creates noise.
How to remedy rhythmic scratching or grinding noises:
- Check whether the condensate drain is clear of obstructions.
- Check whether the design output and temperature are set correctly. Ice formation is particularly pronounced when a high heating output is demanded at moderate outside temperatures.
- Carry out a manual defrost, as many times as necessary, until the fan runs freely again. Observe the information in the WPM instructions and parameter "START DEFROST" in menu "COMMISSIONING / COMPRESSOR".
- At outside temperatures above +1 °C, shut down the appliance or switch it over to emergency mode for approx. 1 hour. After this, the ice should have melted.
- Check that the appliance is installed in line with the installation requirements.
- If noise occurs frequently, notify the service department.
18. Specification
18.1 Dimensions and connections
Diagram description: A diagram shows the dimensions of the appliance and labels connection points: e01 (Heating flow), e02 (Heating return), d45 (Condensate drain), d47 (Drain), g01 (Air intake), g02 (Air discharge).
| Type of connection | Diameter [mm] | |
|---|---|---|
| WPL-A 05 HK 230 Premium | Plug-in connection | 28 |
| Plug-in connection | 28 | |
| 29.6 | ||
| WPL-A 07 HK 230 Premium | Plug-in connection | 28 |
| Plug-in connection | 28 | |
| 29.6 |
18.2 Wiring diagram
Diagram description: A detailed wiring diagram illustrates the electrical connections for the compressor, control unit, emergency/booster heater, fan, and various sensors. It includes terminal assignments (XD01, XD02, etc.) and component labels (RF05, BT55, etc.).
Component List:
| Label | Description |
|---|---|
| AA02 | Integral heat pump control unit (IWS) |
| AA04 | Inverter compressor |
| BF01 | Flow sensor, heating |
| BP01 | High pressure sensor (34 bar) |
| BP03 | Low pressure sensor (16 bar) |
| BP05 | High pressure switch (34 bar) |
| BT01 | Heating flow temperature sensor - Pt1000 |
| BT02 | Heating return temperature sensor - Pt1000 |
| BT30 | Outdoor air temperature sensor - Pt1000 |
| BT39 | Expansion valve inlet temperature sensor - Pt1000 |
| BT40 | Hot gas temperature sensor - Pt1000 |
| BT42 | Frost protection temperature sensor - Pt1000 |
| BT43 | Condenser outlet temperature sensor - Pt1000 |
| BT44 | Evaporator inlet temperature sensor - Pt1000 |
| BT46 | Compressor intake temperature sensor - Pt1000 |
| BT48 | Oil sump temperature sensor - Pt1000 |
| BT50 | Hot gas temperature limiter |
| BT55 | High limit safety cut-out temperature limiter NHZ |
| BT57 | Recuperator inlet temperature sensor - Pt1000 |
| EB01 | Emergency/booster heater NHZ (P3=3200W, P2=3000W, P1=2600W) |
| EB03 | Emergency/booster heater NHZ |
| FC05 | Fan fuse 10 A |
| KF21 | Relay, booster heater NHZ1 |
| KF22 | Relay, booster heater NHZ2 |
| MA01 | Compressor motor |
| MA04 | Expansion valve motor |
| MA07 | Motor, diverter valve, defrost |
| MA16 | Motor, valve, inverter cooling |
| MA20 | Motor, heat pump fan |
| RF05 | Split ferrite |
| RF06 | Split ferrite |
| RF07 | Split ferrite |
| XD01 | External heat pump power supply terminal |
| XD02 | External NHZ terminal |
| XD03 | External control terminal |
| XD05 | External bus terminal |
| XD06 | External ribbon heater terminal |
| XD28 | Fan terminal |
| XE19 | Terminal bracket support point |
| XE20 | 6-pole terminal box support point |
| XE21 | Oscillation plate support point |
| XE22 | Floor plate support point |
| XE23 | M4 terminal box support point |
| X11.1 | 3-pin IWS plug - power supply control |
| X11.2 | 2-pin IWS plug - compressor ON |
| X11.3 | 2-pin IWS plug - defrost valve |
| X11.4 | 2-pin IWS plug - oil sump heater |
| X11.5 | 3-pin IWS plug - condensate ribbon heater |
| X11.6 | 3-pin IWS plug - NHZ 1 |
| X11.7 | 3-pin IWS plug - NHZ 2 |
| X11.8 | 3-pin IWS plug - power-OFF |
| X12.1 | 4-pin IWS Rast plug - fan PWM |
| X12.2 | 12-pin IWS Rast plug - temperature sensor 1 |
| X12.3 | 3-pin IWS Rast plug - BUS connection |
| X12.4 | 7-pin IWS Rast plug - high/low pressure |
| X12.5 | 5-pin IWS Rast plug - expansion valve |
| X12.7 | 6-pin IWS Rast plug - temperature sensor 2 |
| X12.8 | 4-pin IWS Rast plug - temperature sensor 3 |
| X12.10 | 5-pin IWS Rast plug - flow rate sensor |
| X12.11 | 4-pin IWS Rast plug - Modbus inverter |
18.3 Application limit
18.3.1 Heating
Diagram description: A graph shows the application limit for heating, plotting outside temperature [°C] on the X-axis against flow temperature [°C] on the Y-axis.
18.3.2 Cooling
Diagram description: A graph shows the application limit for cooling, plotting outside temperature [°C] on the X-axis against flow temperature [°C] on the Y-axis.
18.4 Output diagrams
18.4.1 WPL-A 05 HK 230 Premium
Diagram description: Graphs show Heating output [kW] and DHW output [kW] versus Outside temperature [°C] for the WPL-A 05 HK 230 Premium model, illustrating maximum and minimum outputs at various flow temperatures (W35, W45, W55, W65).
18.4.2 WPL-A 07 HK 230 Premium
Diagram description: Graphs show Heating output [kW] and DHW output [kW] versus Outside temperature [°C] for the WPL-A 07 HK 230 Premium model, illustrating maximum and minimum outputs at various flow temperatures (W35, W45, W55, W65).
18.5 Data table
The performance data apply for new appliances with clean heat exchangers. The power consumption figures for the integral auxiliary drives are maximum values and may vary subject to operating point. The power consumption of the integral auxiliary drives is included in the output details of the heat pump (to EN 14511).
| WPL-A 05 HK 230 Premium | WPL-A 07 HK 230 Premium | |||
|---|---|---|---|---|
| 202669 | 200123 | |||
| Heating output | ||||
| Heating output at A7/W35 (min./max.) [kW] | 2.65/7.40 | 2.65/10.75 | ||
| Heating output at A2/W35 (min./max.) [kW] | 2.10/6.55 | 2.10/9.70 | ||
| Heating output at A-7/W35 (min./max.) [kW] | 2.05/4.97 | 2.05/6.87 | ||
| Heating output at A7/W35 (EN 14511) [kW] | 3.31 | 3.31 | ||
| Heating output at A2/W35 (EN 14511) [kW] | 3.19 | 4.3 | ||
| Heating output at A-7/W35 (EN 14511) [kW] | 4.97 | 6.87 | ||
| Heating output at A-7/W55 (EN 14511) [kW] | 4.94 | 7.01 | ||
| Heating output at A-15/W35 (EN 14511) [kW] | 4.18 | 6.4 | ||
| Heating output in reduced night mode A-7/W35 [kW] | 3.4 | 5.2 | ||
| Heating output in max. reduced night mode A-7/W35 [kW] | 2.9 | 2.9 | ||
| Heating output in reduced night mode A-7/W55 [kW] | 3.2 | 4.9 | ||
| Heating output in max. reduced night mode A-7/W55 [kW] | 2.7 | 2.7 | ||
| Max. cooling capacity at A35/W7 [kW] | 4.73 | 7.3 | ||
| Cooling capacity at A35/W7 partial load [kW] | 1.81 | 3.31 | ||
| Max. cooling capacity at A35/W18 [kW] | 6.86 | 10.15 | ||
| Cooling capacity at A35/W18 partial load [kW] | 3.37 | 4.94 | ||
| Power consumption | ||||
| Power consumption at A7/W35 (EN 14511) [kW] | 0.61 | 1 | ||
| Power consumption at A2/W35 (EN 14511) [kW] | 0.69 | 1.1 | ||
| Power consumption at A-7/W35 (EN 14511) [kW] | 1.44 | 2.36 | ||
| Power consumption at A-7/W55 (EN 14511) [kW] | 1.97 | 2.97 | ||
| Power consumption at A-15/W35 (EN 14511) [kW] | 1.44 | 2.4 | ||
| Power consumption, emergency/booster heater [kW] | 6.2 | 6.2 | ||
| Coefficients of performance | ||||
| COP at A7/W35 (EN 14511) | 5.42 | 5.42 | ||
| COP at A2/W35 (EN 14511) | 4.6 | 4.3 | ||
| COP at A-7/W35 (EN 14511) | 3.45 | 2.93 | ||
| COP at A-7/W55 (EN 14511) | 2.51 | 2.36 | ||
| COP at A-15/W35 (EN 14511) | 2.9 | 2.67 | ||
| SCOP (EN 14825) | 4.7 | 4.88 | ||
| Max. cooling capacity factor at A35/W7 | 2.86 | 2.35 | ||
| Cooling capacity factor at A35/W7 partial load | 2.97 | 3.02 | ||
| Max. cooling capacity factor at A35/W18 | 3.84 | 2.87 | ||
| Cooling capacity factor at A35/W18 partial load | 4.35 | 4.28 | ||
| Sound emissions | ||||
| Sound power level (EN 12102) [dB(A)] | 48 | 48 | ||
| Sound power level W35 (EN 12102) [dB(A)] | 48 | 48 | ||
| Sound power level W55 (EN 12102) [dB(A)] | 47 | 47 | ||
| Sound power level max. [dB(A)] | 58 | 59 | ||
| Sound power level, reduced night mode [dB(A)] | 47 | 51 | ||
| Sound power level max. reduced night mode [dB(A)] | 47 | 47 | ||
| Application limits | ||||
| Min. application limit, heat source [°C] | -25 | -25 | ||
| Max. application limit, heat source [°C] | 40 | 40 | ||
| Min. application limit on the heating side [°C] | 15 | 15 | ||
| Max. application limit on the heating side [°C] | 75 | 75 | ||
| Application limit heat source at W65 [°C] | -17 | -17 | ||
| Min. cooling mode application limit for outside temperature [°C] | 15 | 15 | ||
| Max. cooling mode application limit for outside temperature [°C] | 40 | 40 | ||
| Energy data | ||||
| Energy efficiency class | A+++ | A+++ | ||
| Electrical data | ||||
| Max. power consumption without emergency/booster heater [kW] | 2.9 | 5.4 | ||
| Rated voltage, compressor [V] | 230 | 230 | ||
| Control unit rated voltage [V] | 230 | 230 | ||
| Rated voltage, emergency/booster heater [V] | 230 | 230 | ||
| Compressor phases | 1/N/PE | 1/N/PE | ||
| Control unit phases | 1/N/PE | 1/N/PE | ||
| Emergency/booster heater phases | 2/N/PE | 2/N/PE | ||
| Compressor fuse protection [A] | 1 x B 25 | 1 x B 25 | ||
| Control unit fuse protection [A] | 1 x B 16 | 1 x B 16 | ||
| Emergency/booster heater fuse protection [A] | 2 x B 16 | 2 x B 16 | ||
| Starting current | 2 | 2 | ||
| Max. operating current [A] | 12.5 | 24 | ||
| Max. mains impedance Zmax to EN 61000-3-11 [Ω] | 0.33 | 0.33 | ||
| Versions | ||||
| Refrigerant | R454 C | R454 C | ||
| Refrigerant charge [kg] | 3 | 3 | ||
| CO2 equivalent (CO2e) [t] | 0.44 | 0.44 | ||
| Global warming potential of the refrigerant (GWP100) | 148 | 148 | ||
| IP rating | IP 14B | IP 14B | ||
| Condenser material | 1.4401/Cu | 1.4401/Cu | ||
| Dimensions | ||||
| Height [mm] | 900 | 900 | ||
| Width [mm] | 1270 | 1270 | ||
| Depth [mm] | 593 | 593 | ||
| Weights [kg] | 135 | 135 | ||
| Connections | ||||
| Connection, heating flow/return [mm] | 28 mm | 28 mm | ||
| Heating water quality requirements | ||||
| Water hardness [°dH] | 3 | 3 | ||
| pH value (with aluminium fittings) | 8.0-8.5 | 8.0-8.5 | ||
| pH value (without aluminium fittings) | 8.0-10.0 | 8.0-10.0 | ||
| Conductivity (softening) [µS/cm] | <1000 | <1000 | ||
| Conductivity (desalination) [µS/cm] | 20-100 | 20-100 | ||
| Chloride [mg/l] | <30 | <30 | ||
| Oxygen 8-12 weeks after filling (softening) [mg/l] | <0.02 | <0.02 | ||
| Oxygen 8-12 weeks after filling (desalination) [mg/l] | <0.1 | <0.1 | ||
| Values | ||||
| Permissible operating pressure, heating circuit [MPa] | 0.3 | 0.3 | ||
| Heating flow rate (EN 14511) at A7/W35, B0/W35 and 5 K [m³/h] | 0.56 | 0.56 | ||
| Flow rate on heat source side [m³/h] | 2250 | 2250 | ||
| Nominal heating flow rate at A-7/W35 and 7 K [m³/h] | 0.64 | 0.842 | ||
| Nominal internal pressure drop, heating [hPa] | 51 | 88 | ||
| Min. heating flow rate [m³/h] | 0.64 | 0.64 | ||
| Further details | ||||
| Maximum altitude for installation [m] | 2000 | 2000 | ||
GUARANTEE
The guarantee conditions of STIEBEL ELTRON's German companies do not apply to appliances acquired outside of Germany. In countries where STIEBEL ELTRON subsidiaries sell products, a guarantee can only be issued by those subsidiaries under their own terms. No other guarantee will be granted. STIEBEL ELTRON shall not provide any guarantee for appliances acquired in countries where it has no subsidiary. This will not affect warranties issued by any importers.
ENVIRONMENT AND RECYCLING
STIEBEL ELTRON asks for your help to protect the environment. After use, dispose of the various materials in accordance with national regulations.
