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Anleitung Zusammenfassung
In this case, the transport securing device is not imperative. A ATTENTION!_ The heat pump must not be tilted more than max. 45° (in either direction). After the transport, the transport securing device is to be removed on either side at the bottom of the unit. A ATTENTION!_ The transport securing device is to be removed prior to commissioning. To remove the panelling, open the individual covers by unscrewing the respective turn-lock fasteners and then gently tilting the covers away from the device. Then lift them up out of the mountings. E-3 English English 6 6 Installation 6.1 General Information As a rule, the unit must be installed indoors on a level, smooth and horizontal surface. The entire base frame should make full contact with the surface in order to ensure adequate sound insulation. Failing this, additional sound insulation measures may become necessary. The heat pump should be installed to allow easy maintenance/ service access. This is ensured if a clearance of approx. 1 m in front of the heat pump is maintained. 0,5m k r / i V 1m r 6.2 Sound Emissions The heat pump offers silent operation due to efficient sound insulation. Any vibration transmission to the foundation or the heating system can be largely prevented by internal sound decoupling measures. 7 Mounting 7.1 General Information The following connections need to be estab-lished on the heat pump: ■ supply/return flow of the brine system ■ supply/return flow of the heating system ■ power supply 7.2 Connection on Heating Side A ATTENTION!_ The heating system must be flushed prior to connecting the heat pump. Before completing the heat pump connections on the heating water side, the heating installation must be flushed in order to remove any impurities that may be present, as well as residues of sealing material, and the like. Any accumulation of deposits in the condenser may result in a total failure of the heat pump. Once the installation on the heating side has been completed, the heating system must be filled, de-aerated and pressure-tested. Heating water minimum flow rate The heating water minimum 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 differential pressure-free manifold or an overflow valve. The procedure for setting an overflow valve is described in the Chapter Commissioning. Frost protection for installations prone to frost Provided the controller and heating circulating pumps are ready for operation, the frost protection feature of the controller is active. If the heat pump is taken out of service or in the event of a power failure, the system has to be drained. In heat pump installations where a power failure cannot be readily detected (holiday house), the heating circuit must contain a suitable antifreeze product. 7.3 Connection on Heat Source Side The following procedure must be observed when making the connection: Connect the brine line to the flow and return pipe of the heat pump. The hydraulic plumbing diagram must be observed here. A ATTENTION!_ The supplied strainer must be fitted in the heat source inlet of the heat pump in order to protect the evaporator against the ingress of impurities. In addition, a microbubble deaerator must be installed in the heat source system. The brine liquid must be produced prior to charging the system. The brine concentration must be at least 25 %. Freeze protection down to -14°C can thus be ensured. Only antifreeze products on the basis of mono-ethylene glycol or propylene glycol may be used. The heat source system must be vented (de-aerated) and checked for leaks. A ATTENTION!_ The brine solution must contain at least 25 % of an antifreeze agent on a mono-ethylene glycol or propylene glycol basis and must be mixed prior to filling. 7.4 Electrical Connection The following electrical connections must be established on the heat pump: ■ Connection of the control wire to terminals X1: L/N/PE in the control box of the heat pump. ■ Connection of the load wire to terminals X5: L1/L2/L3/PE in the control box of the heat pump. ■ Connection of the brine pump (to be supplied by the customer) to terminal PE and pump contactor K5: 2/4/6 on the control panel of the HP. All electrical components required for the operation of the heat pump are located in the control box. E-4 8.3 For more detailed instructions concerning the connection and functioning of the heat pump controller (e.g. the supplied external wall sensor) please refer to the enclosed operating manual of the controller. An automatic circuit-breaker with simultaneous tripping of all external conductors is to be provided in the load power supply. The circuit-breaker must be an all-pole disconnect device with a contact gap of at least 3 mm. The same applies to any additional disable contactors that may be required, e.g. during shut-off periods imposed by the utili...