Unit installation

6
recommends placing the exterior air flow grille into the
side of the vehicle, directly in front of the outdoor
coil. The installer must provide the exterior air
opening and/or grille.
3) Any decorative grille or louver used as an opening
for outdoor coil air flow must have 354 square inches
of free area.
4) Do not block or restrict the discharge air opening
(located in the bottom of the heat pump) with any
flooring or bracing.
5) The air that is being used by the outdoor coil cannot
be drawn from the underside of the vehicle. Seal or
baffle the sides and bottom edge of the heat pump to
prevent the recirculation of air from underneath
the vehicle. Recirculation of air across the outdoor
coil will decrease both system performance and
equipment life.
6) Do not install any other heat generating appliance in
the same cavity as the heat pump. Additional heat in
this cavity will decrease system performance and
equipment life. Overall package dimensions are
shown in Figure 1. RV Products requires that a
minimum of 4 additional inches be allowed at the
wiring box end of the heat pump to allow for the
installation of both low and high voltage wiring.
7) Ensure that neither the vehicle engine exhaust, on-
board generator engine exhaust or water heater vent
exhaust are pulled into the outdoor coil air flow.
These hot gases will both: (a) increase system
temperature reducing performance and equipment
life; and (b) the collection of these gases chemical by-
products will begin the chemical degradation of the
surfaces they collect on.
In order to improve installation time and reduce down time
when servicing, RV Products recommends using drawer slides
for mounting the heat pump.
This unit must be supported from below by angle iron,
channels or RV frame members. These supports must be
located under the air conditioner and kept within the areas
shown (cross-hatched) in Figure 2. Support must be provided
in the areas indicated to both secure the compressors and
balance the system. Adding support outside of the indicated
area may interfere with either the condenser air outlet or the
condensate drain.
When suspending the unit from flooring or frame members, a
minimum of four threaded rods are required. Minimum rod
diameter is 5/16". The support rods and hardware must be
plated or equivalently protected against corrosion. All
threaded fasteners should be provided with lock washers,
“locktite”, “double-nutted”, or equivalently protected from
loosening after installation.
After mounting heat pump, install the barbed end of the drain
tube assembly (shipped in wirebox) into the drain pan opening
in the bottom of the unit.
Heat pump condensation may at times splash out of the drain
pan and drain from the unit corners. Therefore, do not mount
the unit above areas which might be damaged by exposure to
moisture.
Upon completion of the installation, verify that the heat pump
has a minimum clearance of 14" from the basepan to ground
level.
7. DUCT MOUNTING AND CONFIGURATION
This system is designed for the top of the heat pump to seal to
the bottom of the flooring in the vehicle. The ducting for the
unit attaches and seals to the top and side. Cut-outs in the
flooring provide passage for return air.
The 6536 series heat pump is available in two cabinet
configurations; top discharge and side discharge (See
Figure 1). Both configurations have top and side return air
openings. Ducting to both return air openings is preferred,
but using one opening is adequate.
Under no circumstances should any of the openings or
associated ducting be allowed to have a misaligned or smaller
inner perimeter than any heat pump opening.
DANGER - SHOCK HAZARD
Do not drill any openings into this heatpump. Drilling new
openings and inserting screws may damage either the
refrigeration circuit or electrical wiring causing possible
equipment damage, personal injury or death.
IMPORTANT
Regardless of installation configuration,
ensure that all duct connections are
air tight. Loose or leaking connections
can reduce system performance and allow
gases, odors and dirt to be drawn in from
outside the vehicle.