DE DIETRICH KALIKO TWH 200E - TWH 300E - TWH 300EH - Manual (Page 16)

3.2 Main parts
1 Fan
2 Evaporator
3 Expansion valve
4 Solenoid valve for defrosting
5 Regulation
6 temperature sensor
7 Impressed current anode
8 Safety thermostat
9 Steatite electrical resistor
10 temperature sensor
11 Air conduits
12 High pressure (HP) pressure switch
13 Low pressure (LP) pressure switch
14 Compressor
15 Pressure measurement point - High pressure (HP)
16 Ventilation grid
17 Domestic hot water outlet
18 Condenser
19 Cold water inlet
3.3 Operating principle
The thermodynamic DHW tank uses unheated ambient air or outside
air to prepare DHW.
The refrigerant circuit is a closed circuit in which the R-134a
refrigerant plays the role of an energy carrier.
The heat from the intake air is transferred to the refrigerant in the
finned heat exchanger at a low evaporation temperature.
The refrigerant is sucked in by a compressor in vapour form, which
raises it to a higher pressure and temperature and sends it to the
condenser. In the condenser, the heat extracted in the evaporator and
some of the energy absorbed by the compressor are released into
the water.
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3. Technical description TWH 200E TWH 300E TWH 300EH
14 03/02/2014 - 300026515-001-03