22
23
Functional details
Functional details
This means that the temperature increases far above the desired value or falls
far below the desired value. The innovative new percent mode now lets the user
specify the switching duration of the heater in percent using the "+" and "-" but-
tons (Pos. 3+4) (100% being the max. temperature) rather than setting the desired
temperature. Now the result of the setting must be checked by using the "Actual"
temperature display. If the desired temperature has not yet been reached, the
percentage must be increased.
By setting percentages of the heating duration, the temperature of the
high-pressure jet is kept constant in a very narrow range.
The last value set is also saved after the unit is switched off in percent mode.
Operating hour meter
The cleaner is equipped with an operating hour meter. If during normal opera-
tion the momentary operating mode button ( "°C" or "%" ) is actuated for more
then 2 seconds, the operating time of the pump is displayed for 5 seconds and
afterwards the combustion time for 5 seconds as well. Thereafter the display
shows the original values again. As long as the operating hours are displayed
no further inputs on the monitor are possible.
The operating time is displayed in hours [ h ] either in the “TARGET” or in
the „ACTUAL“ window. The 1000 and 100 hours are displayed in the „TARGET“
window and the 10, 1 and 1/10 hours in the “ACTUAL” window:
Pump operating time: Target-Display: P 9 9 Actual-Display: 9 9. 9 for 9 999,9h
Combustion time: Target-Display: F 9 9
Actual-Display: 9 9. 9 for 9 999,9h
e.g.: F00 27.3 = Cumbustion time 27 hours and 18 minutes
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. 5). 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. 3+4) 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. 6). The yellow LED above
the "%" button and next to the set temperature display flashes.
In the temperature control of high-pressure cleaners in temperature mode (“°C”),
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.
Thermostat
The thermostat controls the spray water tempera-
ture. After you switch on the device, "
888
" appears
in both displays for approx. 1 second as a test of
the functioning of the displays. The thermostat
also monitors the minimum 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.
1
3
5
4
Summary of Contents for therm 1165-1
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