PURPOSE OF HEAT PUMP SCOPE OF DELIVERY
2 PURPOSEPUMP OF HEAT
2.1 Application
The
The heat pump is designed exclusively for the heating and cooling of heating water!
In the heating mode, the heat pump is suitable both for
In the continuous mode of operation, a heating water return temperature of more than 18 °C must be maintained in order to ensure proper defrosting of the evaporator.
The heat pump is not designed for any increased heat demand during the drying phase of new buildings; the additional heat demand must be met by special appliances to be supplied on site. For the structural drying of new buildings in the autumn or winter it is recommended that an additional electric 3 heating element (available as accessory) be installed.
In the cooling mode, the heat pump is suited for air temperatures ranging from +15 °C ... +40 °C.
It can be used for passive and dynamic cooling applications alike. The minimum water temperature is +7 °C.
CAUTION! The unit is not suited for operation with a frequency converter.
2.2 Principle of Operation
Heating
Ambient air is drawn in by the fan and passed over the evaporator (heat exchanger). The evaporator cools the air, i.e. it extracts the heat it contains. In the evaporator, the heat removed is transferred to the working fluid (refrigerant).
With the aid of an electrically driven compressor, the absorbed heat is "pumped" to a higher temperature level through pressure increase and given off to the heating water via the condenser (heat exchanger).
The desuperheater, mounted upstream, enables domestic hot water to be produced simultaneously or separately.
In so doing, electrical energy is used to raise the heat of the environment to a higher temperature level. Due to the fact that the energy extracted from the air is transferred to the heating water, this type of appliance is referred to a
The
valve as well as the
In the case of low ambient temperatures, air humidity may accumulate on the evaporator in the form of frost impairing the heat transfer. The evaporator is automatically defrosted by the heat pump, if required.
Cooling
In the "cooling" mode, the operating process of evaporator and condenser is reversed..
The heating water transfers the heat to the refrigerant via the condenser that is now working as the evaporator. In the compressor the temperature of the refrigerant is raised, and the heat is rejected to the ambient air via the condenser (in the heating mode the evaporator).
Via the additional heat exchanger, the waste heat can also be used for hot water consumers such as domestic hot water, swimming pool or bathroom heating applications.
SCOPE OF DELIVERY
3.1 Baseline Unit
The heat pump is delivered as a compact unit containing the components listed below.
The refrigerant used is R404A.
12
| 6 | 5 |
| 4 | 3 |
1) | Evaporator |
| 4) | Pressostats | |
| (heating mode) |
| 5) | Condenser | |
2) | Fan |
|
| (heating mode) | |
3) | Control box |
| 6) | Compressor | |
4
