Operation Manual

GB
Heater & hot water
13
108 Adria Motorhomes
13.1.7 Malfunctions
When the heater malfunctions, the red indicator lamp (Fig. 81/8) is on.
See the Chapter 21.6 "Truma Combi faults" for possible causes.
 The fault is reset by switching the heater off and on with the control switch.
13.1.8 FrostControl (safety/drain valve)
The safety / drain valve is near the heater.
"FrostControl" (Fig. 84/1) is a currentless safety/drain valve. When there is a danger of frost, it
automatically drains the contents of the boiler through a draining socket (Fig. 84/4). If exces-
sive pressure is present in the system, pressure will be automatically intermittently equalised
through the pressure relief valve.
Closing the drain valve:
 Check if the rotary switch (Fig. 84/2) is set to "Operation" (parallel to the water connec-
tion (Fig. 84/3) and is engaged.
It can be manually closed with the snap button (Fig. 84/5) (pressed) and then the boiler
filled only when the temperature at the drain valve is above approx. 7 °C.
 Set the heater to summer or winter mode (Chapter 13.1.3 or 13.1.4) and set the rotary
switch (Fig. 84/2) of the valve (Fig. 84/1) to "Operation". The rotary switch must engage.
 Press the snap button (Fig. 84/5) into the valve until it engages ("closed" position).
 Always keep the drainage pipe (Fig. 84/4) of the safety / drain valve free from contami-
nation (slush, ice, leaves, etc.).
Important!
If a fault shut-off occurs during mixed operation when using Truma Combi E (e.g. because
of an empty gas cylinder), the heater continues to run in electrical operation.
Important!
If the 230 V power supply is interrupted for short periods during operation (approx. 1 sec-
ond), the heating will resume as normal.
Fig. 84 FrostControl Truma Combi
1 Safety / drain valve
2 Rotary switch
3 Water connection
4 Draining socket
5 Snap button
2
3
4
1
5