Manual Webasto Cool Top Trail 28V (page 6 of 154) (English, German, Dutch, French, Italian, Swedish, Spanish)

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4 | Installation instructions

6 / 154 9044617A_OI-II_Cool Top Trail 28V

To create a new cut-out:

Depending on the size of the adapter frame you need to create

the corresponding cut-out in the roof.

Consult the vehicle manufacturer for the most suitable way and

position for a new cut-out.

4.4 Installation position

Fig.3 Installation direction of the outdoor unit

Consider the installation position before installation:

lThe intended location must not interfere with existing

structures and cables.

lThe air conditioner must be installed as close as possible to

the centre of the roof.

lThe installation position of the outdoor unit must be con-

sistent with the traveling direction (F) of the vehicle.

lMake sure that there is sufficient room on the inside of the

vehicle to install the air distributor.

lConsider the installation position of the air distributor and

make sure its outlets are at least 400 mm away from cup-

boards, walls and bulkheads which could redirect condi-

tioned air back towards the return air intake. If an outlet is

less than 400 mm from an obstruction, then it should be

sealed closed. Failure to do so will result in a unit that fre-

quently cycles on and off.

lThe cut-out must avoid roof cladding joints where possible.

lChoose an installation position between two longitudinal

supports or sections, if present.

lThere must be a minimum of 100 mm clearance all around

the rooftop unit to ensure suitable air flow and access for

maintenance.

WARNING

When a hatch with safety ventilation function is re-

placed by the air conditioner, you must make sure that

the safety ventilation is restored in another location.

NOTE

The angle of inclination of the air conditioner must not

be greater than 5° (= 8.8%) and the rear of the air con-

ditioner must not be higher than the front.

The following illustrations (Fig. 4, Fig. 5 and Fig. 6) show the re-

quired installation space for the outdoor unit and the air distrib-

utor on the inside for the two different cut-out versions. Centre

the air distributor by using the cut-out.

NOTE

All measurements are in mm, unless stated otherwise.

Fig.4 Installation measurements (top / bottom view)

1 Position of the outdoor unit

2 Position of the air distributor

3 Square cut-out

F Direction of travel

Fig.5 Installation measurements (side view)

Fig.6 Installation measurements (front view)

4.5 Roof reinforcements

You must reinforce the cut-out with a wooden frame, using

bars which are at least 20 mm wide. You may have to remove

insulation material first however.

The reinforcement frame is to make sure that the roof is not

crushed by the installation bolts and that air-conditioned air

does not enter the ceiling space.

Fig.7 Roof reinforcement

1 Roof

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Webasto Cool Top Trail 28V Manual

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