4 Description of the product
4.1
General description
ETWH thermodynamic water heaters have the following specifications:
Floor-standing thermodynamic water heater with heat pump taking
energy from the ambient air.
Control panel with display of the hot water temperature in the domestic
hot water tank and timer programming.
Shielded 1.55 kW immersion heater.
Enamelled tank protected by magnesium anode.
Very thick insulation containing 0% CFCs (chlorofluorocarbons).
The thermodynamic water heater is a hot water tank that can be heated
by:
The thermodynamic unit.
The immersion heater. (up to 70°C).
4.2
Operating principle
4.2.1
Operating principle for the thermodynamic water heater
Depending on the source of energy used to heat the water in the
thermodynamic water heater (heat pump only, immersion heater only, or
heat pump and immersion heater combined), the heating time for the
thermodynamic water heater varies according to the room temperature.
X Room temperature (°C)
Y Heating time (hours)
1 Source of energy: heat pump and immersion heater combined
2 Source of energy: immersion heater
3 Source of energy: heat pump
X Room temperature (°C)
Y Heating time (hours)
1 Source of energy: heat pump and immersion heater combined
2 Source of energy: immersion heater
3 Source of energy: heat pump
4.2.2
Operating principle with the different MODES
The main and default heat source for the thermodynamic water heater is
the heat pump.
Fig.4
Model ETWH 180 E
18
16
14
12
10
8
6
4
2
0
0
10
20
30
40 43
Y
X
MW
-5
0
0
0
4
9
0
-2
2
3
1
Fig.5
Model ETWH 230 E
18
16
14
12
10
8
6
4
2
0
0
10
20
30
X
Y
40 43
MW
-5
0
0
0
4
9
1
-2
2
3
1
4 Description of the product
20
ETWH
7629886 - v07 - 20072020
