Routing The Wiring; Positioning The Rooftop Component - Dometic Brisk Air Installation And Operation Manual

Rooftop Air Conditioner (Universal Air Distribution Box, Mechanical Controls)
16 Structural framing for a new roof opening
0.8 in. (20 mm)
q
Minimum width for
the framing stock
0.3 in. (8 mm)
w
Minimum access hole
5. Frame the opening so it will not collapse when
bolting the rooftop 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 the matching
hole in the ceiling.

7 .3 Routing the wiring

I The power must be on an appropriately-sized
separate time delay fuse or circuit breaker. See
"Specifications" on page 11.
This section describes how to route the wiring for the
rooftop component:
1. Position a copper 115 VAC supply wire, with ground,
in the front portion of the roof opening.
2. Route the supply wire from the time delay fuse or
circuit breaker box to the roof opening. Use a listed/
certified non-metallic sheathed single strand cable.
See "Specifications" on page 11.
EN
q q
w w
e e
15.0 in. (381 mm)
e
Exposed length
of 115 VAC power
supply wiring
I If an AC or a vent fan were removed, the existing
power supply wire may be used provided it is of the
proper type, size, and location, and if it is correctly
fused.
3. Make sure that at least 15.0 in. (381 mm) of supply
wire extends into the roof opening to ensure an easy
connection at the junction box.
4. Protect the 115 VAC power supply wire where it
passes into the opening according to local and
national standards.
7 .4 Positioning the rooftop
component
NOTICE: Do not slide the rooftop component along a
surface. Otherwise, damage to the gasket on the bottom
of the rooftop component could occur and cause a leak.
This section describes how to move and position the
rooftop component for installation.
1. Remove all the contents from the carton and discard
the carton.
2. Place all the ADB kit contents in the RV. The ADB kit
contains mounting hardware for the ADB that will be
installed inside the RV.
3. Move the rooftop component to the roof.
17 Placing the unit (models H540315 and H540316 shown)
Front of the rooftop
q
component
4. Lift and place the rooftop component over
the prepared opening using the gasket on the
rooftop component as a guide.
Pre-installation
w w
q q
Roof opening
w
15