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Switching off (gas operation)
Switch off the water heater at the rotary
switch (b).
If the water heater is not to be used for a
longer period, mount cowl cover (non-
observance of this point can lead to the
function of the appliance being impaired
through water, dirt or insects), close quick-
acting valve in the gas supply line and close
the gas cylinder.
Red indicator lamp "Failure"
The red indicator lamp (d) lights up if there is
a failure.
The reason for such an indication is, for
example, no gas available or air in the gas
supply system, triggering of the excess
temperature monitor etc. To unlock, switch
off the appliance, wait 5 minutes, and switch
on again.
Electrical Operating Instructions
Switch the switch (d) on the control panel to
"On". The indicator lamp indicates the
electrical water-heating element is operative.
When using the vehicle switches refer to
operating instructions of the vehicle
manufacturer or see switch labels.
Note: The water temperature cannot be
selected, automatic temperature limitation at
approx. 70°C. For a faster heating up period
the appliance can be simultaneously
operated with gas and electrical power.
Note: The water tank in the Truma-Ultrastore
is made of high quality food-proof stainless
steel VA.
Use wine vinegar for de-scaling the water
supply. Allow the product to react and then
thoroughly flush out the appliance with
plenty of fresh water. To sterilise the water
we recommend "Certisil- Argento". Other
products, particularly those containing
chlorine are unsuitable.
In order to avoid the proliferation of micro-
organisms, heat the Ultrastore to 70° at
regular intervals.
Important Operating Notes
1. If the cowl is positioned close to an
opening hatch (window), keep this closed
during operation. See warning plate.
Always mount the cowl cover if the heater
is not being used. Non-observation of
this point can lead to the function of the
appliance being impaired through water,
dirt or insects.
2. The guarantee will be invalidated if this
point is not observed. Always remove the
cowl cover prior to operating the water
heater!
3. If there is a defect in the electronics,
return the control Printed Circuit Board
well padded. If you fail to pack it
correctly the guarantee will be
invalidated. Only use original Truma
Ultrastore control P.C.B's as spare parts.
4. If just the cold water system is being
used, without water heating, the header
tank becomes more vulnerable to frost
damage. Accordingly the contents
should be drained by operating the
safety/drain valve. This also applies
when the motorhome is in storage.
Equipment Details
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