Holiday 2002 NEPTUNE, Owner'S Manual

Page: 117 / 344

Appliances
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2 0 0 2 N E P T U N E
4 • 117
This section covers operation and care of various appliances found in the
motorhome. The motorhome is equipped with a refrigerator, cooktop range,
microwave, furnace, water heater, roof air conditioner and several optional
appliances. Many of these appliances operate on AC or DC current, LP-Gas or
a combination of all three.
Detailed information with CAUTION or WARNING
instructions for the various appliances, other than what is
found in this section, can be found in the manufacturer’s
manual.
WARNING: Before entering any type of refueling station
make sure all LP-Gas operated appliances are off. Most
LP-Gas appliances used in recreational vehicles are vented
to the outside. When parked close to a gasoline pump it is
possible for fuel vapors to enter this type of appliance and
ignite, resulting in an explosion or fire. Carbon monoxide
gas may cause nausea, fainting or death. Operating an LP-
Gas appliance with inadequate ventilation or partial block-
age of the flue can result in carbon monoxide poisoning. Do
not store flammable liquids such as lighter fluid, gasoline or
propane in the outside refrigerator compartment.
The refrigerator in the motorhome operates on a different principle than a
standard household refrigerator. Knowing these differences should answer
questions or solve problems that may arise. A standard household refrigerator
uses a different type of refrigerant. In a household refrigerator, a compressor
pumps refrigerant vapor into a condenser where the heat from the refrigerant
dissipates and the vapors condense to a liquid. The liquid refrigerant pumps
through a metered orifice or capillary tube at the evaporator. At this time, the
refrigerant changes from liquid to a vapor. This change cools the evaporator.
Air blows across the evaporator and into the interior of the refrigerator. This
system is efficient as long as 120 Volts AC is available.
The motorhome refrigerator uses a combination of fluids and gas for
refrigeration: ammonia, water, sodium chromate and hydrogen gas. The cooling
unit is pressurized to approximately 350 psi. The chemicals are heated to a
gaseous state, which rise to the top of the cooling unit into a condenser where
it forms droplets as it cools. As the vapor condenses, it "extracts or absorbs"
heat from inside the refrigerator. Using gravity, the droplets return through the
absorber coils to the absorber vessel to start the process again. To ensure
longevity and proper operation of the cooling unit follow the specific instructions
for use and care. With proper care and maintenance, the refrigerator should
provide years of trouble-free service.
REFRIGERATOR
INTRODUCTION