Ci-Bus Cable(S); Installing The Adaptor Frame - Houghton Webasto Cool Top Trail 20 Operating And Installation Instructions

5 | Installation instructions
11. Do not lay loose or bent cables next to electrically conduct-
ive material (metal).
5.7

CI-BUS Cable(s)

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.
To assemble the CI-BUS cables, follow the instructions in
chapter 5.7.1, "CI-BUS cable assembly" on page 8.
Use the appropriate CI-BUS cable to connect the CI-BUS unit to
the CI-BUS system.
If two Cool Top Trail air conditioners are installed, use the CI-
BUS interconnection cable to connect the CI-BUS units.
WARNING
Danger of electrocution
You must make sure that there is no voltage at electric-
ally operated components before working on them.
Make sure that the mains power supply or the power
supplied by inverters is isolated.
Fig. 12 CI-BUS cable
NOTE
Malfunctioning of the CI-BUS
Do not lay mains cables, the CI-BUS cable(s) and
12/24 V cables together in the same cable duct.
1. Optionally lead the CI-BUS cable through the roof insula-
tion as shown above.
2. Drill a hole in the wooden bar through which to route the
CI-BUS cable.
3. Route the CI-BUS cable through the hole in the wooden bar
before mounting the bar.
4. Attach and lay the cables so that they cannot be tripped
over or damaged.
5. Use cable ducts to route cables through walls with sharp
edges.
6. Do not lay loose or bent cables next to electrically conduct-
ive material (metal).
7. Route the CI-BUS cable to the indoor area of the caravan,
vehicle or motorhome.
8. Route the CI-BUS cable to the Cool Top trail air conditioner.
9. In case of two Cool Top Trail air conditioners route a CI-
BUS interconnection cable between the two CI-BUS units.
8 / 155
5.7.1 CI-BUS cable assembly
The CI-BUS cables must be assembled with appropriate crimp
terminals and a matching housing. See chapter 4, "Required
connectors for the CI-BUS" on page 5 for specification details.
Always adhere to the manufacturer's guidelines.
1
Fig. 13 CI-BUS cable assembly
1 Cable
2 Crimp terminals
3 Housing
1 2
Fig. 14 CI-BUS interconnection cable assembly between two CI-BUS
units
1 Housing CI-BUS (CI-BUS unit 1)
2 Crimp terminals CI-BUS (CI-BUS unit 1)
3 Cable
4 Crimp terminals CI-BUS (CI-BUS unit 2)
5 Housing CI-BUS (CI-BUS unit 2)
5.8

Installing the adaptor frame

1. Make sure the roof is clean, dry and free from oil or grease.
2. Insert the adaptor frame into the cut-out to make sure that
the power supply cable and the CI-BUS cable (if applicable)
do not interfere with the frame. If the cables cause obstruc-
tions, then cut or drill openings in the bottom of the frame
to lead the cables through.
3. Confirm the correct orientation of the frame by using the
"This side up" label.
Fig. 15 Orientation of the adaptor frame
4. Turn the part over and on the reverse side of "This side up",
apply silicone sealant uniformly over the path shown.
400x400
Fig. 16 Sealant paths
2
3 4
360x360
9039408E_OI-II_Cool Top Trail 20-24
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