Instruction manual

197T-Modell - 13/14 - Ausgabe 08/13 - 2354677 - BUE-0029-14EN
Sanitary fittings
10
10.3.2 Heater for waste water tank and waste water pipes (special
equipment)
In order to prevent waste water fittings freezing up, the waste water tank and
the waste water pipes can be electrically heated separately.
When the heater is turned on, temperature sensors monitor the surface tem-
perature of the waste water tank and ambient temperature of the waste water
pipes. If the temperature falls below 5 °C, the heating elements are switched
on and the waste water tank and waste water pipes are heated. If the temper-
ature rises above a certain level, the heating elements are switched off again.
The waste water pipes are at 7 °C, the waste water tank at 30 °C.
The control unit (Fig. 241) is fitted in the wardrobe or in a bench seat. The con-
trol lamps on the control unit have the following meanings:
z Indicator lamp (Fig. 241,2) lights up in green: Regulator in operation.
z Indicator lamp (Fig. 241,1) lights up in red: Waste water tank is heated.
z Indicator lamp (Fig. 241,3) lights up in red: Waste water pipes are heated.
The on/off switch (Fig. 242) is installed at the front of the bench or bed. Press
the switch up to switch on, press it down to switch off.
10.3.3 Warming unit for waste water pipes (special equipment)
In order to prevent waste water pipes from freezing, the waste water pipes can
be electrically warmed.
When the warming unit is turned on, the temperature of the waste water pipes
is monitored by temperature sensors. If the temperature falls below 5 °C, the
heating elements are switched on and the waste water pipes are warmed. If
the temperature rises above 7 °C, the heating elements are switched off
again.
Fig. 241 Control unit Fig. 242 Switch indicator lamps
Z Always only press the test button briefly.
Z The warming unit only functions when the vehicle is connected to a 230 V
power supply.