3
Operating instructions
Always observe the operating instructions prior to
starting! The vehicle owner is responsible for the correct
operation of the appliance.
Filling the Truma-Ultrastore with water
1. Check that the safety/drain valve in the cold water intake is
closed: Lever should be in horizontal position, position (e).
e = Lever position
„Closed“
f = Lever position
„Drain“
2. Open hot tap in bathroom or kitchen, with pre-selecting
mixing taps or single-lever fittings set to „hot“.
3. Switch on power for water pump (main switch or pump
switch).
Leave the tap open to let air escape while the water heater is
filling. The heater is filled when water flows out of the tap.
Residues of frozen water can prevent filling if there is a frost.
The water heater can be defrosted by switching on the heater
for a short period (max. 2 minutes). Frozen pipes can be
defrosted by heating the room.
Draining the water heater
If the mobile home is not used during periods of frost, it
is essential that the Truma-Ultrastore be emptied.
1. Disconnect power for water pump (main switch or pump
switch).
2. Open hot water taps in bathroom and kitchen.
3. Open safety/drain valve: Lever in vertical position, position (f).
4. The water heater is now drained directly to the outside via
the safety/drain valve. Check that the water contents have
been completely drained (10 litres or 14 litres).
Switching on Gas operation
a = Rotary switch „On“
„Gas operation“
b = Rotary switch „Off“
c = Rotary knob for
temperature selection
(illuminated by green
lamp „Operation“)
d = Red indicator lamp
„Failure“
Never operate the water heater without water in it!
If the cowl is positioned vertically below an opening part of a
window, the water heater must be fitted with an automatic
shut-off device to prevent operation when the window is open.
1. Remove cowl cover.
2. Open gas cylinder and open quick-acting valve in the gas
supply line.
3. Switch the water heater on at the rotary switch (a) of the
control panel, and the green monitor lamp will light up. Set the
desired water temperature at the rotary knob (c) (steplessly
adjustable from about 30°C to 70°C).
When using the vehicle switches: refer to operating instruc-
tions of the vehicle manufacturer or see switch labels.
4. If there is air in the gas supply line, it may take up to a
minute before the gas is available for combustion. If the appli-
ance switches to „Failure“ during this period, switch off the
appliance – wait 5 minutes – and switch on again!
Switching off
Switch the water heater off at the rotary switch (b). Mount
cowl cap. Drain the water heater if there is a risk of frost. Close
quick-acting valve in the gas supply line if the appliance is not
to be used for a longer period of time and close the gas cylinder.
Red indicator lamp „Failure“
The red indictor lamp (d) lights up if there is a failure.
For possible causes please refer to page 5. To unlock, switch
off the appliance, wait 5 minutes, and switch on again.
Switching on Electric Operation
(230 V, 850 W, 3.7 A)
g = Rocker switch, „Off“
h = Rocker switch, „On“
„Electrical operation“
Never operate the water
heater without water in it!
Switch on at the control panel (h). The indicator lamp indicates
that the electrical water heating is switched on.
When using the vehicle switches: refer to operating instruc-
tions of the vehicle manufacturer or see switch labels.
The water temperature cannot be selected, automatic
temperature limitation at approx. 70°C! For a faster heat-
ing up period the appliance can be simultaneously operated
with gas and electrical power.
The electrical heating rod is fitted with an excess temper-
ature cut-out. In the event of a fault, switch off at the
operating element, wait 5 minutes, then switch on again.
General safety notes
In event of leaks in the gas system or if there is a smell of gas:
– extinguish all naked flames
– do not smoke
– switch off all appliances
– shut off the gas cylinder
– open the windows and doors
– do not actuate any electrical switches
– have the entire system checked by an expert!
Repairs may only be carried out by an expert.
1. Any alteration to the appliance (including cowl) or the use
of spare parts and accessories which are important for the
functioning of the heater and which are not original Truma
parts, as well as the non-observance of the installation and op-
erating instructions, shall lead to the cancelling of the guaran-
tee and exclusion of liability claims. It also becomes illegal to
use the appliance, and in some countries this even makes it
illegal to use the vehicle.
