Two main types of “portable
refrigerators” exist: the thermoelectrics (also
known as peltier junction units)
and the compressor
systems.
Thermoelectric
Units
Thermoelectric units
are coolers, not refrigerators. Typical
examples include the Igloo® and
Coleman units found at Wal-Mart or
sporting goods stores. The main benefits
of thermoelectric units are their
low price and small size. The main
drawbacks are that they cool only
to about 30-35 degrees below ambient
temperature and draw large amounts
of current. For example, in 90-degree
ambient, your thermoelectric cooler
will reach only about 60 degrees
inside. Thermoelectrics also cannot
freeze their contents. In extreme
heat, they suffer more and become
useless. These units run continuously
and draw as much as 10-amps, resulting
in a vehicle that will not start.
Compressor
Units
A compressor system
like the one in FridgeFreeze vaccine
refrigerator/freezers is built using
similar equipment to your home refrigerator/freezer.
This type of system consumes less
power and can refrigerate or freeze
in warmer ambient temperature. These
units perform better and are more
efficient than thermoelectrics.
FridgeFreeze
Compressor Units
The FridgeFreeze vaccine
refrigerator/freezer is
the most efficient portable 12/24
and 110-volt vaccine refrigerator/freezer
made. The 15-liter, 20-liter, 35-liter, 45-liter and 60-liter models
draw between 2.3 and 3.8 amps when
the compressor is cycled on. The 100-liter model
draws between 4.6 and 7.6-amps. All
FridgeFreeze vaccine refrigerator/freezer
models are so well insulated
that the compressor is running only
about 10 to 15 minutes per hour on
average to maintain internal temperature.
Depending on ambient temperature
and thermostat setting, the FridgeFreeze
vaccine refrigerator/freezer
can draw as little as 17 amp hours
over a 24-hour period (see chart
below).
The FridgeFreeze
vaccine refrigerator/freezer
not only is the most efficient portable
vaccine refrigerator/freezer available,
it’s
also the best performing. With the
standard thermostat, the FridgeFreeze
vaccine refrigerator/freezer
can refrigerate or freeze. It can
freeze two one-gallon jugs of water
in just 24 hours. A FridgeFreeze
vaccine refrigerator/freezer
also has an extremely quick “cool-down” time,
taking between 20 and 45 minutes
to reach freezing temperatures when
empty.
The FridgeFreeze vaccine
refrigerator/freezer works
by transferring heat from inside
the unit to the outside casing. Thus,
the warmer the contents inside the
unit, the longer it will take to
extract the heat. Place a warm six
pack of aluminum cans inside the
unit.
The cans will reach a chilly 40°F
in less than one hour, depending
on ambient temperatures — this
cool-down is more than five times
faster than an Igloo® thermoelectric
cooler.
We always recommend
running the FridgeFreeze vaccine
refrigerator/freezer from an
auxiliary battery when using it in
a boat, car, or truck. This precaution
ensures that you always have enough
power to start your vehicle. A 120-amp
hour deep cycle marine battery will
power a FridgeFreeze vaccine refrigerator/freezer
for up to five
days without recharging. Although
vehicle charging systems differ greatly,
most vehicles’ starting batteries
can power a FridgeFreeze vaccine
refrigerator/freezer for two
to three full days without starting
the vehicle or charging the battery.
For questions regarding
your specific usage, please call
FridgeFreeze. Our knowledgeable
staff will be happy to recommend
the proper solution. |
