Dometic FreshJet 3 Series - New Roof Opening and Wiring Routing

11
EN
Rooop Air Conditioner (Air Distribution Box, Electronic Controls) Pre-installation
7.2.2 Making a new roof opening
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If the roof has an existing roof vent, see “Using an
existing roof vent opening” on page10.
This section describes how to prepare the RV roof when
making a new roof opening.
1. Shut off the gas supply, disconnect the 115 VAC
power from the RV, and disconnect the positive
(+)12VDC terminal from the supply battery.
2. Carefully mark the required roof opening. See
“Placement requirements” on page7.
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w
e
6 Structure for a new roof opening
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Incorrect
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Correct
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Correct
3. Make sure the new opening does not compromise
the roof’s structural integrity.
– Do not cut the roof structure or the raers.
– The raers should remain supported by a cross
beam.
– The opening should be between the raers.
4. Carefully cut the required roof opening.
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e
7 Structural framing for a new roof opening
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0.8 in. (20 mm)
Minimum width for the
framing stock
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15.0 in. (381 mm)
Exposed length
of 115 VAC power
supply wire
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0.3 in. (8 mm)
Minimum width for
access hole
5. Frame the opening so it will not collapse when
bolting the rooop component down.
6. At the front of the frame opening, leave or create
an access hole to allow for the length of exposed
115VAC power supply wiring required to complete
the installation.
7. Using the roof opening as a guide, cut a matching
hole in the ceiling of the RV interior.
7.3 Routing the supply wiring to the
roof opening
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The power must be on an appropriately-sized
separate time-delay fuse or circuit breaker. See
“Specifications” on page8.
This section describes how to route the wiring for the
rooop component.