Electrical Connection - Truma S 3004 Installation Instructions Manual

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Installation

The combustion air must not be taken from the vehicle

interior� The combustion air must always be supplied

from outside� The combustion air intake must not be

subjected to wheel spray, otherwise fit a splash guard�

The floor cut-out for the appliance must be installed so

that no contaminated air (exhaust fumes, petrol vapour

or oil vapour) can penetrate the interior of the vehicle�

There must not be any heat-sensitive materials beneath

the appliance (cut out the carpet floor)� On PVC floors,

discolouration may occur due to heating of the heater

base� There must also be no flammable / heat-sensitive

materials on the vehicle underbody close to the com-

bustion air infeed�

2.1.4 Floor base / false floor

If the heater is installed on a floor base, false floor or

similar (Fig� 1-1), it is essential to use the air intake ex-

tension with 500 mm air intake duct (Fig� 1-3)�

The air intake extension must protrude into the air flow

approx 5 to 10 cm (Fig� 1-b) below the lowest part of

the vehicle� Pay attention to the ground clearance of the

vehicle�

Two air intake extensions are required for the S 5004�

Fig� 1

The floor base or false floor must be sealed off from the

vehicle interior and made from non-combustible materi-

al, or have an inner lining made from sheet metal�

To prevent unburned gas from building up, the floor

base in the lower base plate (Fig� 1-2) must have a ven-

tilation opening of at least 2 cm² in size at its lowest

point, or must be open at the bottom�

An opening of 2 cm² corresponds to a circle diameter of

1�5 cm (Fig� 1-a)�

If the air intake duct has to be shortened, this should

be done at the end of the duct facing the heater�

Insert the shortened duct again and then drill new

holes for the locking screws and secure the air in-

take duct using the locking screws�

Practical tip: Use the duct cutting device AE3-5

(part no� 30030-08000) to shorten the air intake duct�

The duct must be sawn off at right angles�

2.1.5 Selecting a location for the roof cowl

The heater must always be operated with a roof cowl�

This must always be installed vertically or with a maxi-

mum incline of 15 degrees�

Make sure that the exhaust gas can exit freely from the

cowl at all times� The exhaust cowl must always be kept

free in the air flow during operation of the heater� Roof

structures may interfere with the function of the heater�

If the heater goes out regularly while driving, the

cowl tops T-2 and T-3 are available in order to influ-

ence the flow conditions� Test runs must be carried

out if necessary�

If necessary, a cowl extension AKV must also be in-

stalled� This must be secured with a screw�

An open roof window / skylight in the area of the roof

cowl holds the risk of entry of exhaust gas into the vehi-

cle interior� The cowl must therefore never be positioned

near this opening� If this is not completely possible, the

heater must not be used when the roof window / lifting

roof is open�

In order to make this clear, the installer must affix a

sticker (Fig� 2) to the roof window / lifting roof in a clear-

ly visible location� The sticker (part no� 30090-37100) is

included with the delivery�

30090-37100-00-08/2011

Fig� 2

2.2