Webasto BlueCool S Series User Manual

5 Installation BlueCool S Series
16
Minimum cross-section of return air and supply air
grille
The minimum cross-sections of the return air and supply air
grille and the air ducts must be taken into account for a
satisfactory functionality of the air-conditioning system.
Duct type
When flexible air ducts are used, they must be of a high
quality and must be sufficiently reinforced with steel or
plastic coils to prevent accidental crushing.
Flexible air ducts should be pulled out to their maximum
length to offer the smoothest possible inside surface.
For extremely long air duct sections, rigid ducts (e.g. made
of PVC) should be given preference. These ducts are much
smoother than flexible air ducts, and therefore also have a
considerably lower inside resistance.
Fan outlet
Flexible air ducts mounted directly on the fan outlet and
then bent at right angles must always be avoided, as they
considerably restrict the air flow. All Webasto fans can be
mounted in several positions to enable a straight outlet out
of the fan. An example of proper installation is shown in Fig.
10.
Turning fan
The fan must be removed to turn it.
 Remove the black insulation off the fastening screws of
the fan motor on the back of the fan.
NOTE
• Prevent a restriction of the air supply due to
excessively tight bending radii of the air
ducts or due to accidental deformations.
• Install the air ducts as short as possible
(< 2.5 m). Excessively long air ducts result in
a reduction in the air flow, and therefore in
a decrease in the cooling/heating capacity of
the system.
• The return air grille should be mounted
offset so that the air flowing in does not
flow directly into the evaporator inlet. This
enables the intake noises from the fan to be
considerably reduced.
See Fig. 9.
Fig. 9 Mount return air grille offset.
Table 1 Requirements for air duct
Model BlueCool S
Supply air grille
Cross-section
Return air grille
Cross-section
Diameter of air
duct
<2m long
Diameter of air
duct
<5m length
8,000 BTU/h 1x 235 cm² 1x 490 cm² 100 mm 125 mm
10,000 BTU/h 1x 235 cm² 1x 490 cm² 100 mm 125 mm
13,000 BTU/h 1x 250 cm² 1x 550 cm² 125 mm 150 mm
16,000 BTU/h 1x 390 cm² 1x 800 cm² 125 mm 150 mm
20,000 BTU/h 1x 390 cm² 1x 800 cm² 125 mm 150 mm
27,000 BTU/h 2x 650 cm² 2x 1,600 cm² 2 x 125 mm 2 x 150 mm
Fig. 10 Fan outlet turned (on right)

Webasto BlueCool S Series Specifications

General

Brand	Webasto
Model	BlueCool S Series
Category	Air Conditioner
Language	English