Table of Contents
Advertisement
INSTALLATION POSITION
Minimum 1 inch clearance from
side grills to any obstruction.
Minimum 8 inch clearance from
rear grills to any vertical face.
Minimum 4 inch clearance to any
45 degree face
Unit Installation
Before beginning, mark out the position of the unit
considering the following important requirements:
- The air conditioner should be situated as centrally as
possible on the vehicle, to ensure even air distribution.
- The front of the unit MUST face the direction of
travel; failure to follow this instruction will result in
damage to the condenser fans.
- If the vehicle is over 23' in length, or has an unusually
high heat load (see General Operating Information
section regarding expectations about insulation etc.),
Atwood would recommend 2 or more units to cool
effectively.
- When considering the installation position remember
to check for clearance around the plenum inside the
vehicle.
- Avoid an installation position where a bulkhead,
cupboard or light fitting could interfere with the
discharge air flow from the plenum.
CAUTION
It is important that the unit is never more
than 5⁰ from the horizontal and the rear of
the unit should never be higher than the
front.
AC IOM DUCTED 7/31/2013 rev 3
.
- Contact Atwood if your installation differs significantly.
ASSESS ROOF STRENGTH
- The roof members MUST be strong enough to
support the weight of the unit 86 lbs (39kg) without any roof deflection
that will cause "pooling" of water around the unit. Contact your RV
manufacturer to confirm the max load the roof is able to handle. If in any
doubt consider the use of an external "H" frame.
- If the roof does not have an existing hole one must be cut. Cut from the
roof then use the roof hole as a guide to cut through the ceiling. Contact
your RV manufacturer for the best method to cut through the roof.
- The square hole in the roof (14" x 14") MUST be boxed up with
minimum 3/4 inch square timber to provide a structure strong enough to
withstand the compression of the installation bolts. This is also to ensure
that air is not drawn from the roof cavity (Fig 3 & 4). Remember to leave
access for wiring.
- Longitudinals MUST be fixed securely to the transverse roof members
to transfer load (see Fig 3).
3
Hide quick links:
Advertisement
Table of Contents
