Wiring Requirements; Placing Unit On Roof - Dometic 489516P series Installation & Operating Instruction

INSTALLATION INSTRUCTIONS
Using the roof opening as a guide, cut the match-
ing hole in the ceiling.
The opening created must be framed to provide
adequate support and prevent air from being
drawn from the roof cavity. Framing stock 3/4" or
more in thickness must be used. Remember to
provide an entrance hole for power supplies at
the front of the opening. See (FIG. 3).
FIG. 3
Good-Rafters
Do Not Cut Roof
Supported By
Structure Or
Cross Beams
Rafters
3/4" Min.
Leave Access For
Power Supply Wiring
C.

Wiring Requirements

1. Route a copper, with ground, 120 Vac 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
"A. Table - Unit Data" on page (4).
a. This supply wire must be located in the front
portion of the roof opening.
b. The power MUST be on an appropriately
sized separate time delay fuse or circuit
breaker. See "A. Table - Unit Data" on page
(4).
c. Make sure that at least 15" of supply wire
extends into the roof opening. This insures
an easy connection at the junction box.
d. Protect the wire where it passes into the
opening with approved method.
Good Location
Between Roof
Rafters
Frame Opening So It
Won't Collapse When
Bolting Down Unit
15" Min. At
Front Of
Opening
D.

Placing Unit On Roof

1. Remove the unit from the carton and discard
carton.
2.  LIFTING HAZARD. Use proper
lifting technique and control when lifting product.
Failure to obey this caution could result in injury.
Place unit on the roof.
3.  Do NOT slide unit. Otherwise,
damage to gasket (on bottom of unit) may occur,
and could cause a leak.
Lift and place the unit over the prepared open-
ing using the gasket on the unit as a guide. See
(FIG. 4).
FIG. 4
4. Place the ADB kit (ordered separately) inside
the boat. This box contains mounting hardware
for the unit and will be used inside the boat.
 T his completes the outside work. Minor
adjustments can be done from inside the
boat if required.
6
Lift And Place
Front Towards Bow
Do Not Slide