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II. GENERAL INFORMATION
This packaged heat pump mounts below the floor of the
vehicle. The innovative design makes it possible to maintain
a smooth, free-flowing roof line for the vehicle. It also
relocates all heat pump noise and condensate drainage off the
roof to below the floor of the vehicle.
This heat pump contains a dual compressor system with each
compressor connected to a separate refrigeration circuit. It
combines the capacity of two roof mounted units into one
highly efficient and compact package.
A. Air Conditioner
This heat pump operates a two-stage system in cooling
running a single compressor when the air conditioning
requirement is low, or with two compressors when maximum
cooling is required.
The first compressor and refrigeration circuit is referred to as
“1st Stage”. The second compressor and refrigeration circuit
is referred to as “2nd Stage”. First and second stage will
operate as indicated below:
1st stage (the first compressor and refrigeration circuit) will
operate when:
1) The thermostat is demanding cooling,
2) The vehicle is being powered by either
shore line or the on-board generator.
2nd stage (the second compressor and refrigeration circuit)
will operate when:
1) The thermostat senses room temperature is
2 degrees higher than setpoint,
2) The vehicle has enough power.
B. Heat Pump
Heat operation always energizes both refrigeration circuits
with a 30 second delay between compressor 1 start-up and
compressor 2 start-up, however, only refrigeration circuit #1
operates if power is not available for circuit #2.
Thermostat operation is described in operation instructions
packed with the thermostat.
III. MAINTENANCE
One of the biggest advantages of owning an RV Products heat
pump is that the maintenance needed to keep the unit in good
care is minimal.
In fact, the only maintenance that must be taken care of on a
regular basis is the cleaning or replacement of the units return
air filters.
The manufacturer of your vehicle determines the number, size
and location of the return air filters. Be sure to contact your
dealer should you have any questions concerning the number
of filters used and their location.
The return air filters of this system will accumulate dust and
dirt more quickly than ceiling mounted systems. We
recommend that the filters be checked on a weekly basis.
If the filters are not cleaned or replaced at regular intervals,
they may become partially clogged with lint and dirt. A
clogged filter will produce a loss of air volume and may
eventually cause equipment damage.
Do not operate the heat pump without return air filters.
Operating the system without filters allows the lint and dirt
that is normally stopped by the filter to accumulate on the
cooling coil of the heat pump. This also will lead to a loss of
air volume, possible equipment damage and an expensive
cleaning process.
Periodically (once or twice a season), inspect the outdoor coil
and brush off any accumulated residue with a soft bristled
brush.
