Fedders FV95A090 - Manual (Page 47)

1
FURNACE COMPONENTS
REGULATOR VENT
Most natural gas systems and all LP gas systems have a
service regulator located near the point where the gas
piping enters the building. The propane tank will normally
have an additional first stage regulator located at the tank
outlet valve. All of these regulators (located outdoors) will
have a vent; see Fig. 2 (below).
It is important for these vents to remain clear. Do not allow
moisture, which could freeze, to build up in the vent. If you
see moisture building up in the regulator vent, contact your
gas supplier.
Your gas supplier should periodically inspect and clean the
air vent screen to prevent any obstruction. Keep the
protective regulator cover in place, as exposure to the
elements can cause ice buildup and a regulator failure.
WARNING
AN OBSTRUCED AIR VENT ON AN LP (PROPANE)
CYLINDER OR TANK REGULATOR CAN CAUSE EXPLOSION
OR FIRE RESULTING IN PROPERTY DAMAGE, SEVERE
PERSONAL INJURY OR DEATH.
FIGURE 2
GAS REGULATOR VENT
FIGURE 1
FURNACE COMPONENTS
Regulator vent
Keep free of ice, snow,
and debris
GENERAL SAFETY RULES
1. Combustible materials should not be stored against or
around the furnace. Keep the furnace area clear and
free from all combustible materials such as newspapers,
rags, cardboard, clothing, etc. This applies especially to
gasoline and other flammable vapors and liquids.
2. A furnace needs adequate amounts of combustion and
ventilation air to operate properly. Do not block or
obstruct air openings on the furnace, or air openings
supplying combustion or ventilation air to the area
where the furnace is installed. There are many areas
from which your furnace could be receiving combustion
and ventilation air including from within the heated
area (inside air), from outdoors, from an attic or crawl
space. If renovations are done, be sure that air supply
openings are not inadvertently covered over with
insulation, vapor barrier, or similar construction
material.
3. All doors and panels must be in place during normal
furnace operation. Attempting to operate the furnace
with missing doors or panels could lead to the creation
of carbon monoxide gas.
4. If the furnace is installed in a confined space or if you
intend to build a furnace room where insulation is
present, be aware that some insulating materials are
combustible. Do not allow building insulating materials
to come into contact with the furnace.
5. Any additions, alterations or conversions required in
order for the furnace to properly match the application
requirements must be done by a qualified installation
contractor, service agency or gas supplier, using factory
specified or approved parts.
6. Familiarize yourself with the location of the furnace gas
manual shutoff valve and any electrical switches, fuse or
circuit breaker associated with the furnace.
7. For your protection, the furnace is equipped with
manually reset flame rollout switches. If either switch
trips frequently, do not ignore this, call your installation
contractor, service agency or gas supplier.
8. Should the gas supply fail to shut off or if overheating
occurs, shut off the gas valve to the furnace before
shutting off the electrical supply.
9. Familiarize yourself with the location of your furnace
filter or filters. A blocked air filter will reduce efficiency,
increase fuel consumption, raise the furnace operating
temperature, and shorten the life of furnace
components.
10. Do not cover return air grilles and supply air registers
with drapes, curtains, throw rugs, etc.
11. Avoid shutting off supply air registers in the interests of
saving heat. The furnace requires a sufficient quantity
of air passing over the heat exchanger to operate
within design temperatures, (system temperature rise).
Reducing the availability of supply air registers may
have the unforeseen consequence of raising the
furnace operating temperature above design, thereby
reducing furnace efficiency, and shortening the life of
the furnace components.
Transformer
Blower
Junction Box
Door Switch
Igniter
Pressure Switch
Burners
Limit Switch
Rollout Switch
Induced blower
Gas valve
Flame Sensor
Control Panel
Furnace Control