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14
Kränzle technology
Thermostat
12 3
The thermostat has two operating modes:
1. Temperature mode
This mode is always activated when the unit is switched on or can be selected using the
"°C°" button (Pos. 3). The red LED above the "°C" button and next to the set temperature
display lights up. The desired "Set" temperature is set using the two buttons (+/-, Pos.
5+6) and can be read in the upper display (Pos. 1). If you press the button for a longer
time, the set temperature is quickly adjusted in 5°C increments.
The last set value set is also stored after the unit is switched off and is available again
immediately after switching back on. The current spray temperature can be read from the
bottom display (Pos. 2).
2. Percentage mode
This mode is activated by pressing the "%" button (Pos. 4). The yellow LED above the "%"
button and next to the set temperature display flashes.
In the temperature control system in conventional high-pressure cleaners, and in
temperature mode for this unit, the water temperature is measured at the outlet of the
heater, and the heater is switched On an Off according to the temperature desired by the
user. Due to the large amount of water in the heating coil, it takes a long time until the
temperature sensor registers that the burner has switched on and the desired temperature
has been reached. This means that the temperature increases far above the desired value
or falls far below the desired value
4
5
6
.
The thermostat controls the spray water
temperature.
After you switch on the device, "888" ap-
pears in both displays for approx. 1 second
as a test of the functioning of the displays.
The thermostat also monitors the mini-
mum fuel level in the tank with a floating
switch. If the level is below the minimum
amount, the thermostat switches the oil
burner off and the "OIL" sign flashes in
the set temperature display (Pos. 1). If the
unit displays "FLA" in the upper display, a
malfunction in burning exists.
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