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Installation instructions | 5
9039408D_OI-II_Cool Top Trail 20-24_EN 7 / 24
Fig.11 Electrical power supply cable
1. Make sure that the 230 V power supply is connected to a
residual current device.
2. Install a circuit breaker with a contact clearance of at least
3.5 mm and an all-pole insulation to protect the power
supply cable to the A/C unit and to allow maintenance and
repair work on the unit.
3. Provide a 230 V~ power supply cable to the cut-out.
4. Optionally lead the power supply cable through the roof in-
sulation as shown above.
5. Drill a hole in the wooden bar through which to route the
power supply cable.
6. Route the power supply cable through the hole in the
wooden bar before mounting the it.
7. Attach and lay the cables so that they cannot be tripped
over or damaged.
8. Use cable ducts to route cables through walls with sharp
edges.
9. Make sure that the minimum cross sections of the cable
corresponding to the current draw of the unit.
10. Do not lay 230 V cables and 12/24 V cables together in the
same cable duct.
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 7.
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 it.
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.
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 2 3
Fig.13 CI-BUS cable assembly
1 Cable
2 Crimp terminals
3 Housing
1 2 3 4 5
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
7


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