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Required connectors for the CI-BUS | 4
9039408D_OI-II_Cool Top Trail 20-24_EN 5 / 24
4 Required connectors for the
CI-BUS
NOTE
This chapter is only applicable if the Cool Top Trail
20 -24 indoor unit is equipped with a CI-BUS Unit and
this CI-BUS Unit must be connected to an external
CI-BUS system.
The CI-BUS Unit must be connected with the CI-BUS system in
the caravan, motorhome or vehicle with living compartments.
This requires the installation of a CI-BUS cable between the
CI-BUS system and CI-BUS Unit in the Cool Top Trail 20 - 24.
This cable is not included in the scope of delivery.
In case of two Cool Top Trail air conditioners, an interconnec-
tion CI-BUS cable between the CI-BUS Units in the air condition-
ers must be installed. This cable is not included in the scope of
delivery.
The CI-BUS cables must be fitted with Molex connectors. These
connectors are assembled from the parts listed and shown be-
low. These parts are not included in the scope of delivery:
Fig.3 Housing
Molex Mini-Fit Jr. Receptacle Housing, Dual Row, 2 Circuits, UL 94V-2,
Natural
Molex part number:
39012020 (Engineering / Old PN: 5557-02R)
Fig.4 Crimp terminal
Molex Mini-Fit Female Crimp Terminal, Tin (Sn) over Copper (Cu) Plated
Brass
Molex part number (select one type):
39000038 / (Engineering / Old PN: 5556T)
39000046 / (Engineering / Old PN: 5556T2)
39000059 / Old PN: 5556PBT
5 Installation instructions
5.1 General
lThoroughly read and understand this manual before install-
ation.
lDo not add any other parts or modify the product in the in-
stallation.
lConsult Webasto or the local distributor in case of unusual
applications or installation conditions that are not specific-
ally covered by this manual.
WARNING
If a heater exhaust pipe is mounted through the roof
nearby the A/C unit, then the exhaust pipe must be ex-
tended 10 cm above the A/C unit.
5.2 Installation requirements
lThe vehicle roof must be able to support the weight of the
air conditioner.
lThe minimum thickness of roof is 25 mm; the maximum
thickness of roof is 70 mm.
lThe roof must be level and smooth.
5.3 Different cut-out sizes
The installation is possible for different cut-out sizes.
To install a 400 x 400 mm roof hatch:
1. Dismount the roof hatch and use the remaining cutout.
2. Remove sealant residue and unevenness.
3. Fill in the screw holes with flexible non-hardening butyl
body sealant.
4. The adapter frame for 400 x 400 mm cut-outs is part of the
scope of delivery.
To install a 360 x 360 mm roof hatch:
1. Dismount the roof hatch and use the remaining cutout.
Either you have purchased a unit with a 360 x 360 adapter
or you must buy the optional adaptor frame for such cut-
outs. You can use it instead of the 400 x 400 mm adaptor
frame.
2. Remove sealant residue and unevenness.
3. Fill in screw holes with flexible non-hardening butyl body
sealant.
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.
5.4 Installation position
Fig.5 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 center of the roof.
5


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