Draining The Boiler; Initial Start-Up; Filling The Fuel Lines; Start-Up - Truma Combi D6 CP plus ready Operating Instructions Manual

Draining the boiler

If the motor home / caravan is not used during the
winter, the boiler must be drained!
– Switch off the power to the pump assembly (main switch or
pump switch).
– Open hot water taps in kitchen and bathroom.
In order to check the water that is flowing out, place an
appropriate container (capacity 10 litres) beneath the
drainage socket (d) of the safety/drain valve.
– Open safety/drain valve
(see "Opening the safety/drain valve").
The boiler is now drained directly to the outside via the
safety/drain valve. Check whether all of the water in the boiler
(10 litres) has been drained into the container via the safety/
drain valve.
There shall be no claims under guarantee for damage
caused by frost!

Initial start-up

(or when the fuel tank has run empty)

Filling the fuel lines

The heater normally has to be started up several times to fill
the fuel lines if an automatic filling device is not being used.
Check to make sure the cowl is unobstructed. Remove any
covers that may be present.
Switch off unit at control panel. The unit automatically per-
forms 2 starting attempts (initial and repeat start) per switch-
on procedure with a run time of 2 minutes in each case. If no
flame is detected after the repeat start, the unit switches to
fault and has to be switched off and on again at the control
panel.
After a total of 15 unsuccessful starting attempts (initial
and repeat start) without forming a flame, the equipment
is blocked. To remove the block, please contact the Truma Ser-
vice Centre (see Truma Service Booklet or www.truma.com).
Check fuel lines and connections for leaks after filling the fuel
lines.

Start-up

The use of the installed control panels (analogue / digital)
is described in separate operating instructions.
Combi D6 CP plus ready
The interior can be heated either with or without water,
depending on the setting.
Combi D6 E CP plus ready
The interior can be heated in diesel, electrical or mixed
mode, either with or without water, depending on the
setting.
Check whether the power supply fuse protection at the camp
site is adequate for the 900 W (3.9 A) or 1800 W (7.8 A) that
have been selected using the power selector switch.
The cable drum must be fully unwound in order to prevent
the power cable from overheating.
– Check to make sure the cowl is unobstructed. Remove any
covers that may be present.
14
– Fill boiler with water if necessary (see "Filling the boiler").
– Switch off unit at control panel.

Switching off

– Switch off heater at control panel.
– The switch-off procedure may be delayed by several min-
utes because of internal heater operations.
Always drain water contents if there is a risk of frost!

Maintenance

Only original Truma parts may be used for maintenance and
repair work.
The device must be descaled on a regular basis (at least twice
a year).
We recommend the Truma system care set for cleaning,
disinfecting and maintenance of the boiler. Other products
– in particular products containing chlorine – are unsuitable.
The effectiveness of the use of chemicals to combat microor-
ganisms in the unit can be increased by heating the water in
the boiler to 70 °C at regular intervals.
Combi D6 E
Select "Diesel" mode.
– Set water temperature to 60 °C.
– Switch on device.
Once the water in the boiler has reached a temperature
of 60 °C, the burner will switch off. The unit must stay
switched on for at least 30 minutes and no warm water may
be removed. The residual heat in the heat exchanger will heat
the water up to 70 °C.
Fuses

Fuses 12 V

The fuses are located in the electronic control unit, beneath
the connection cover. When replacing a fuse, be sure to use
the same type.
Device fuse: 10 A (slow-acting) (T 10 A)
Burner fuse: 20 A (slow-acting) 6.3 x 32 mm
Fig. 4
T 20 A
T 10 A