Always observe the opera-
ting instructions and „Im-
portant operating notes“
prior to starting! The vehicle
owner is responsible for the
correct operation of the appli-
ance.
The installer or vehicle owner
must apply the yellow sticker
with the warning information,
which is enclosed with the
appliance, to a place in the
vehicle where it is clearly visi-
ble to all users (e.g. on the
wardrobe door)! Ask Truma to
send you stickers, if necessary.
Attention: Before using for
the first time, it is essential to
flush the entire water supply
through with clean warm wa-
ter. If the heater is not being
used, always drain the wa-
ter contents if there is a
risk of frost. There shall be
no claims under guarantee
for damage caused by frost!
Also drain the water prior to
repair or maintenance work
on the vehicle (in the work-
shop!) as the electrical safe-
ty/drain valve opens when the
appliance is switched dead.
Function description
The Trumatic C heater is oper-
ated with a burner with fan
assistance, this also ensures
satisfactory operation when
the vehicle is moving.
In winter operation the ap-
pliance automatically selects
the most favorable burner lev-
el corresponding to the tem-
perature difference between
the temperature setting and
the actual room temperature.
Model C 6002 has three pow-
er levels (2000, 4000 and
6000 W). Model C 3402 has
two power levels (2000,
3400 W).
In summer operation the
water is heated at the lowest
burner level. When the water
temperature of 60° or 40°C is
reached the burner switches
Special version with
additional electric
heating 230 V, 450 W
Set the switch on the control
panel to “1”. The indicator
lamp indicates that the device
is in operation.
When using vehicle-specific
switches: refer to operating
instructions of vehicle manu-
facturer.
Note: The water temperature
cannot be selected, automat-
ic temperature limitation at
approx. 60°C! For a faster
heating up period the appli-
ance can be simultaneously
operated with gas and elec-
trical power.
Electrical
safety/drain valve
g = Control knob „closed“
h = Control knob „drain“
Important note: The safety/
drain valve is held closed by a
electrical coil. To save battery
power, we recommend to
open the valve if the vehicle
is not in use for a prolonged
period.
Notes on electrical
safety/drain valve
If the temperature at the safe-
ty/drain valve is less than 2°C,
the water contents may dis-
charge on its own accord if
the appliance is not in opera-
tion (also if there is a failure)!
To avoid loss of water, switch
the appliance on using the
slide valve (b) on the control
panel (summer or winter op-
eration) and close the safety/
drain valve at the control
knob by lifting up (position g).
off and the yellow indicator
lamp goes out.
If just the cold water system
is being operated, without us-
ing the water heater, the
heater tank also fills up with
water. In order to avoid
damage by frost, the water
contents must be drained
by operating the safety/
drain valve, also when the
water heater has not been
used. As an alternative, a
shut-off valve (resistant to hot
water) can be installed up-
stream of the cold and hot
water connection.
When connecting to a central
water supply (rural or city
mains), a pressure reduction
valve must always be in-
stalled to prevent pressures
above 2.8 bar from develop-
ing in the water heater.
Control panel with
thermostat
a = Rotary control knob for
room temperature
(illuminated by green in
dictor lamp „Operation“)
b = Slide valve:
Heater +
water heater
(Winter operation)
Off
Water heater
(Summer
operation)
c = Slide valve for water
temperature 60° or 40°C
(summer operation)
d = Red indicator lamp
„Failure“
e = Yellow indicator lamp
„Water heater heating-up
phase“
Switching on
1. Check that the cowl is not
obstructed. Always remove
any covers, open deck cowl
on boats.
2. Turn on gas cylinder and
open quick-acting valve in the
gas supply line.
3. Operation during sum-
mer: Move slide switch (b) to
„Summer Mode“ and set
slide switch (c) to required
water temperature.
Trumatic
C 3402/C 6002
Liquid gas heater with
integrated storage
water heater for
mobile homes,
caravans and boats
Operating
instructions
4
4. Operation during win-
ter: Move slide switch (b) to
„Winter Mode“ and set re-
quired room temperature us-
ing rotary knob (a).
Note: The Trumatic C heater
is a hot-air heater with an
auxiliary water heating facili-
ty. Heating is therefore pos-
sible with or without wa-
ter.
If the boiler is full, the ser-
vice water is automatically
heated as well. The water
temperature depends on the
amount of calorific output.
If the boiler is empty and the
room temperature is set to a
low level, we recommend
setting the water tempera-
ture slide switch (c) to 40°C
in order to prevent unneces-
sary water heating, which al-
so prevents the heater from
being switched on and off at
frequent intervals.
Switching off
Move slide valve (b) to the
centre.
Always drain water con-
tents if there is a risk of
frost!
If the appliance is not to be
used for a prolonged period,
close the quick-acting valve
in the gas supply line and
turn off the gas cylinder.
Green indicator lamp
„Operation“ (under
rotary control knob)
The green indicator lamp
lights up when the appliance
is switched on. If the indica-
tor lamp is not illuminated,
check the provided (main)
switch. For this purpose ob-
serve the respective instruc-
tions of the vehicle manufac-
turer.
Red indicator lamp
„Failure“
The red indicator lamp (d)
lights up permanently if
there is a failure. Possible
causes are e.g.: no gas, in-
sufficient combustion air,
fuse failure etc. Deactivate
by switching off and then
switching on again.
Flash operation of approx.
1 x per second means that
the operating voltage is too
low.
