Dometic CARAVAN B3200 - Manual (Page 25)

26
FIG. 6
FIG. 7
Do Not Cut
Roof Structure
Or Rafters Good-Rafters
Supported By
Cross Beams Good Location-
Between Roof
Rafters
Frame Opening So It
Won't Collapse When
Bolting Down Unit
Leave Access For Power
Supply Wiring
375mm Min. At
Front of opening
25mm Min.
d. If the opening exceeds 362mm x 362mm
(± 3.2mm), it will be necessary to re-size the
opening to 362mm x 362mm (± 3.2mm).
e. If the opening is less than 362mm x 362mm
(± 3.2mm), it must be enlarged.
3. New Opening- (Installation Other Than Vent Open-
ing)
a. Mark a 362mm x 362mm (± 3.2mm) square on
the roof and carefully cut the opening.
b. Using the roof opening as a guide, cut the
matching hole in the ceiling.
c. The opening created must be framed to provide
adequate support and prevent air from being
drawn from the roof cavity. Lumber 25mm or
more in thickness must be used. Remember to
provide an entrance hole for power supplies at
the front of the opening. See FIG. 7.
It is the responsibility of the installer of this
air conditioner system to ensure structural
integrity of the Caravan roof. Never create a
low spot on the roof where water will collect.
Water standing around the air conditioner may
leak into the interior causing damage to the
product and the Caravan.
CAUTION
D. Wiring Requirements
1. 220 - 240 VAC Supply Line
Route a copper 1mm 2 , with ground, 220 - 240 VAC
supply line from the time delay fuse or circuit
breaker box to the roof opening.
a. This supply line must be located in the front
portion of the 362mm x 362mm (± 3.2mm)
opening.
b. The power MUST be on a separate 10 Amp time
delay fuse or HACR circuit breaker.
c. Make sure that at least 375mm of supply wire
extends into the roof opening. This ensures an
easy connection at the junction box.
d. Wiring must comply with all National and Local
Wiring Codes and/or regulations.
e. Use a steel sleeve and a grommet or equivalent
methods to protect the wire where it passes into
the opening.
E. Placing Air Conditioner On The Roof
This unit weighs approximately 45 Kilograms.
To prevent back injury, use a mechanical hoist
to place Air Conditioner on roof.
FIG. 8
Do not slide the unit. This may damage the
roof gasket attached to the bottom and may
create a leaky installation.
CAUTION
FIG. 9
FRONT
1. Remove the air conditioner from the carton and dis-
card carton. See FIG. 8.
2. Place the air conditioner on the roof.
3. Lift and place the unit over the prepared opening
using the gasket on the unit as a guide. See FIG. 9.