5
Use
Setting the temperature of water is done by pressing one of the buttons located under the
display marked “–” and “+ ” (Fig. 1) in the range from 30
O
C to 60
O
C accurate every 0.5
O
C.
Detecting the flow greater than 2.7 l/min by the heater system will result in switching off the
device. The lines of the barograph (lower part of the display) show the power with the heater
heats the water. The appearance of one line means the heater is heating with the power not
smaller than 10% and not greater than 20% of the rated power. The appearance of five lines
means the heater is heating with the power not smaller than 50% and not greater than 60% of
the rated power. The appearance of all ten lines means the heater is heating with full power.
The signalling by the heater that it is heating with full power is the information for the user to
decrease the consumption of water or decrease the set temperature because the power of
the device at a given moment is not small to heat up water to the desired temperature. After
each start or change of the set temperature, the heater measures temperature of outlet water
every 10 seconds. If two temperature measurements are the same it means the temperature
has stabilized and the electronic system can compare it with the set temperature. In case
when the obtained temperature is smaller from the set temperature due to the drop of the
mains voltage, the heater increases the power automatically, so that the water temperature
achieved the desired value.
In case when the inlet temperature exceeds 55
O
C, the heater will turn off till the moment when
the temperature of supply water will fall below 55
O
C.
W
ater
temperature at the inlet
Water temperature at the outlet
40
O
C
50
O
C
18 kW
21 kW
24 kW
18 kW
21 kW
24 kW
5
O
C
7,4
8,7
9.9
5,8
6,7
7,7
10
O
C
8,6
10,1
11,6
6,5
7,6
8,7
15
O
C
10,4
12,1
13,9
7,4
8,7
9,9
Hot water capacity (in litres per minute) depending on the temperature of inlet water and the
selected power for heater POW-LCD MULTI 18/21/24
W
ater
temperature at the inlet
Water temperature at the outlet
40
O
C
50
O
C
11 kW
13,5 kW 15 kW 11 kW 13,5 kW 15 kW
5
O
C
4,5
5,5
6,2
3,5
4,3
4,8
10
O
C
5,3
6,5
7,2
3,9
4,8
5,4
15
O
C
6,3
7,8
8,7
4,5
5,5
6,2
Hot water capacity (in litres per minute) depending on the temperature of inlet water and the
selected power for heater POW-LCD MULTI 11/13.5/15
