Action-related warnings
Intended use
General safety information
Disconnect the product from the power supply by switching off all power supplies (electrical partition wall with a contact opening of at least 3 mm, e.g. fuse or circuit breaker). There is a risk of burns from uninsulated pipes and from the electrical booster heater. The installation surface must be level and have sufficient load-bearing capacity to support the operating weight of the product.
If the installation surface does not have sufficient bearing capacity, the product may fall over. Ensure that the installation surface has sufficient bearing capacity to support the working weight of the product. Do not inhale any vapors or gases escaping from refrigerant circuit leaks.
Before disposing of the product, the refrigerant contained in it must be completely drained into a suitable container so that it can then be recycled or disposed of in accordance with regulations. Arrange for the refrigerant contained in the product to be recycled or disposed of by a certified competent person in accordance with the regulations.
Regulations (directives, laws, standards)
In heating mode, the wiring between the heat pump and the heat source (environmental circuit) is cold, which means that condensation can form on the wiring in the house. In cooling mode, the wiring of the building circuit is cold, which means that condensation can also form if the temperature drops below the dew point. R410A is a fluorinated greenhouse gas covered by the Kyoto Protocol with a GWP of 2088 (GWP = Global Warming Potential).
If this gas escapes into the atmosphere, its impact is 2088 times greater than the natural greenhouse gas CO2. Ensure that only officially certified competent persons with appropriate protective equipment carry out maintenance work on the refrigerant circuit or have access to it.
Observing other applicable documents
Storing documents
Applicability of the instructions
Heat pump system design
Functionality
The outside temperature is measured by a separate sensor, which is mounted outdoors, and the results are sent to the regulator.
Safety devices
Product design
Information on the identification plate
Explanation of product stickers
Type designation and serial number
CE label
Benchmark
Checking the scope of delivery
Selecting the installation site
Dimensions
Minimum clearances
Transporting the heat pump
Installing the product
Removing carrying handles
Removing the front casing
Removing the casing top and side casings
Removing the refrigeration circuit cover
If you wish to perform active cooling with soil as heat source, ensure that the borehole/soil sensor is suitable for this purpose and comply with national directives and laws. Thoroughly flush the heating installation before connecting the heat pump to remove any residues that may be deposited in the heat pump and cause damage. Position the pipe fittings for securing the heating circuit and coolant circuit so that they are not too close to the heat pump to prevent noise transmission.
If necessary, instead of pipe supports, use cold-insulating clamps with additional rubber insulation and in some cases reinforced pipes (rubber armored pipes).
Requirements for the heating circuit
Connecting the heat pump to the heating
Connecting the heat pump to the brine circuit
Hydraulic wiring in the system
Filling and purging the heating circuit
If you have used the above additives, inform the operator about the measures required. Push the white changeover lever (1) on the motor head of the changeover valve until it clicks into the center position to place the heating/boiler charge changeover valve in the center position. Both valves are open and the filling procedure is improved as the air in the system can escape.
Unscrew the screw cap from the filling and draining valve of the heating circuit and attach the free end of the filling tube here. Fill the water until the pressure gauge (on site) shows that the heating device has reached a pressure of approx. Remove the filler loop from the fill and drain valve and screw the screw cap back on.
Turn the motor head back towards the valve body and reconnect the power supply cable. The white switch handle on the diverter valve motor head should now be in the start position.
Filling and purging the brine circuit
If you fill the brine pump against the flow direction, this can lead to a turbine effect that can damage the pump electronics. Use the priming pump (67) to pour brine from the brine tank (66) into the brine circuit. A fill pressure of 0.17 MPa (1.7 bar) is required for the brine circuit to function smoothly.
Increase the pressure in the brine circuit by opening the stop valve (62) and using the priming pump to fill the brine. If required, depressurize the brine circuit by opening the stop valve (61) to drain the brine. Pass the container with the remaining brine to the operator to be stored.
To determine the required cross-sections of the lines, use the values of the maximum rated power, which are given in the technical data. Secure this connection with the exact values specified in the technical data.
Routing eBUS lines
If residual current circuit breakers are required to ensure that people are protected and fire is prevented in accordance with applicable standards, use type A impulse sensitive residual current circuit breakers or type B universal current sensing circuit breakers. - Circuit breakers with residual current. Observe the technical connection conditions for connecting to the low voltage network of the electricity supply network operator. Connect the product using a fixed connection and an electrical separation with a contact opening of at least 3 mm (eg fuses or power switches).
If the local power supply network operator requires the heat pump to be controlled using a blocking signal, set a corresponding contact switch as described by the power supply network operator. At a length of 10 m or more, the mains voltage supply lines must be laid separately from the sensor or bus lines. Minimum space for extra low voltage and mains voltage line in a line length of > 10 m: 25 cm.
Do not use free terminals on the heat pump as base terminals for further wiring.
Opening the electronics box
Switch box
Establishing the power supply
If the cut-off relay contact to the well pump is closed, there is no voltage on La. The X200(2) connector for optional temperature sensors available as an accessory is marked RR for return connections and VV for flow connections. Connect the cable of the temperature sensor VR 10, supplied as an accessory, to the bushing (1) on the plug (2).
Mains connection PCB
Controller PCB
Connecting the system controller and
Carrying out the wiring
Installing the VRC DCF
Installing optional accessories
Checking the electrical installation
Completing installation
Operating concept
Starting up the heat pump
Running the installation assistants
If the phone number is shorter, end the entry after the last digit by pressing . The installation assistant closes and does not start again the next time the product is switched on.
Calling up the installer level
Heating mode flow temperature regulation
Calling up statistics
Checking that the product works correctly
Setting parameters
Setting the high-efficiency pumps
The following diagram shows how the pump activation setting affects the remaining inlet heads at nominal flows for a heat source temperature range of 3 K. The factory setting of the environmental circuit pump depends on the set environmental circuit type and output area.
Setting the flow temperature in heating mode
Setting the flow temperature in cooling mode
Handing the product over to the operator
Displaying the Live Monitor (current product
Checking fault codes
Querying the fault memory
Resetting the fault memory
Restarting the installation assistant
Using check programmes
Carrying out the actuator test
Auxiliary electric heater circuit breaker
Inspection and maintenance information
Procuring spare parts
Inspection and maintenance check-list
Checking and correcting the filling pressure of
Checking and correcting the filling pressure in
Carrying out a restart and test operation
Temporarily decommissioning the product
Decommissioning the product
Disposing of the brine fluid
Arranging disposal of coolant
Replace wiring harness F.532 Building circuit: Flow rate too low – Stop valve not opened. Make sure the flow rate is at least 35% of the nominal flow rate – Check that the building circuit is pumping. Check that the sensor is working properly (measure the resistance using the characteristic values of the sensor) – Replace the sensor – Clean the building circuit F.685 Connection error: The control does not de-.
Check the quality of the plug contact on the printed circuit board and on the cable harness. F.723 Building circuit: Pressure too low – Loss of building circuit pressure due to leaks or air pockets – Building circuit pressure sensor de-. Insufficient volume flow due to the closing of individual room regulators in the floor heating system - Check whether the filter for dirt, which is in
Check the EEV (is the EEV moving to the end stop? Use the sensor/actuator test). Check the dimensioning of the environmental circuit (heating operation) for soil/brine and ground water/brine – If the building circuit contains ter-. VWL_SA (Warm up mode) – Check the fan assembly for dirt – Check the EEV (is the EEV . moving to the end stop? Use the sensor/actuator test).
F.734 Condensing temperature too low – The temperature in the building circuit (heating mode) or the environmental circuit (cooling mode) is too low for compressor operation. Check the defroster (does it heat up even though it is off in the sensor/actuator test?) – Check the EEV (does the EEV . move to the end stop? Use the sensor/actuator test). The temperature in the building circuit (heating mode) or the environmental circuit (cooling mode) is too high for compressor operation.
Heating: Check the correct operation of the four-way valve - Check the environmental circuit - Check the sensors.
General
Permissible condition of the heating water Do not add antifreeze or corrosion protection agents to the heating water.
Brine heat source
Electricity consumption of the heat pump for B0/W35ΔT 3 K with an external pressure loss of 250 mbar in the heating circuit. Operating the pump outside the application limits results in the heat pump being shut down by internal control and safety devices.
Groundwater heat source
At the same volume flows in the heating circuit (ΔT 5 K or ΔT 8 K) and the brine circuit (ΔT 3 K) as in the nominal heat output test under normal nominal conditions.