Dimplex SI 50ZS Purpose of the Heat Pump, Scope of Delivery, Application, Principle of Operation

PURPOSE OF HEAT PUMP SCOPE OF DELIVERY

PURPOSE OF THE HEAT

2 PUMP

2.1 Application

The brine-to-water heat pump is designed for use in existing or newly built heating systems. Brine is used as the heat carrier in the heat source system. Ground coils, ground collectors or similar systems can be used as the heat source.

2.2 Principle of Operation

The heat generated by the sun, wind and rain is stored in the ground. This heat stored in the ground is collected at low temperature by the brine circulating in the ground collector, ground coil or similar device.

A circulating pump then conveys the warmed brine to the evaporator of the heat pump. There, the heat is given off to the refrigerant in the refrigeration cycle. When so doing, the brine cools so that it can again take up heat energy in the brine circuit.

The refrigerant, however, is drawn in by the electrically driven compressor, is compressed and "pumped" to a higher temperature level. The electrical power needed to run the compressor is not lost in this process, but most of the generated heat is trans- ferred to the refrigerant as well.

Subsequently, the refrigerant is passed through the condenser where it transfers its heat energy to the heating water. Based on the thermostat setting, the heating water is thus heated to up to 55 °C.

3SCOPE OF DELIVERY

3.1 Baseline Unit

The baseline unit consists of a heat pump, ready for connection, for indoor installation, complete with sheet metal cabinet, control box and integrated controller. The refrigeration cycle contains the refrigerant R404A. Refrigerant R404A is CFC-free, non-ozone depleting and non-combustible.

All components required for the operation of the heat pump are located in the control box. A sensor for the external wall temperature including mounting hardware as well as a strainer are supplied with the heat pump. The voltage supply for the load and control current must be provided by the customer.

The control wire of the brine pump (to be provided by the customer) is to be connected to the control box. When so doing, a motor protecting device is to be installed, if required.

The collector loops including the brine manifold must be provided by the customer.

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	5		6
1)	Control	4)	Compressor
2)	Evaporator	5)	Transport securing
			devices
3)	Condenser	6)	Filter drier

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