5
INTRODUCTION
Congratulations on the purchase on your new furnace!
With our dedication to quality, superior reliability, and
outstanding warranty, we know you will be pleased with this
new appliance. This furnace has been designed and built to
provide many years of safe and dependable home comfort,
providing it is properly installed and regular maintenance has
been performed. Improper use or insufficient maintenance
can shorten the life of the furnace and result in serious
personal injury or property damage. Please read this manual
thoroughly and familiarize yourself with the safety, operation
and maintenance procedures for this furnace. DO NOT
DESTROY THIS MANUAL. KEEP IN A SAFE PLACE FOR
FUTURE REFERENCE.
Your furnace is designed to fulfill the requirements of being
classified as either a Category I or Category IV furnace.
These classifications are related to the furnace’s Annual
Fuel Utilization Efficiency (AFUE) rating, the percentage of
fuel that is converted into usable heating energy.
The furnace components shown on pages 6 & 7 will help to
identify and locate various parts of the furnace. The component
you need to familiarize yourself with is the gas valve. You will
use this to turn the furnace on and off.
There are no user
serviceable parts. All repairs must be performed by a
licensed HVAC technician.
Category I (Non-Condensing) Furnaces
These furnaces typically have an AFUE rating of about 80%
and may be vented through a properly designed metal vent or
masonry chimney. This venting system needs to be primarily
vertical, so that the hot combustion products will develop a
natural upwards draft action.
Category IV (Condensing) Furnaces
Category IV furnaces typically have an AFUE rating over
90% and are mainly vented through plastic PVC pipe. These
furnaces also produce liquid condensate which is slightly
acidic. The vent pipe must be sloped upwards away from
the furnace to properly drain the condensate back to the
condensate disposal system.
• Condensing type furnaces require condensate drain lines
to be properly installed by the installer. Depending on your
configuration, the drain lines may be routed out the left or
right sides of the furnace. These drain lines must maintain
a downward slope to ensure proper condensate drainage.
• Condensate must flow freely during furnace operation.
The homeowner must make sure the condensate drain
lines do not become blocked, pinched or crushed.
• If the furnace is installed in an area where temperatures
fall below freezing, special precautions must be made for
insulating condensate drain lines that drain to the outdoors.
If condensate freezes in the lines, this will cause the
condensate drain switch to shut down the furnace.
Only a licensed HVAC technician can reset this switch.
FILTER
WARNING:
Never operate the furnace without a filter in place.
Accumulating dust in the return air can build up on
internal components, resulting in loss of efficiency,
equipment damage, and possible fire.
•
Air filter(s) are not supplied with the furnace as shipped
from the factory.
The installer must provide a high velocity
filter and rack for a filter in the return air duct adjacent to
the furnace, or in a return air grill to the furnace.
• The furnace should always have a clean filter located either
at the air return on the furnace or in an air return register.
If the filter becomes dirty, it should be cleaned or replaced.
• New or newly renovated homes may require more frequent
changing until the construction dust has minimized. Filters
designed to remove smaller particles such as pollen, may
require additional maintenance.
• Always reinstall the doors on the furnace after servicing or
cleaning/changing the filters.
Do not operate the furnace
without all doors and covers in place.
THERMOSTAT
This family of furnaces includes single stage, two-stage and
modulating capabilities. These different capabilities require
different thermostats to reach their best performance.
• Single stage furnaces should be controlled by a conventional
single stage thermostat.
• Two-stage furnaces will perform best with a conventional
two - stage thermostat.
NOTE:
It is possible to control two-
stage furnaces with a single stage thermostat. Consult with
your installer about which type is best for your installation.
Both thermostats are commonly available at your local
building supply store.
FURNACE LOCATION
If a furnace is installed in relatively small utility room or closet,
the installation needs openings in the walls or door to let
combustion air in. Make sure that these openings remain
unobstructed. Do not modify these openings in any way
without consulting a licensed HVAC technician.
ABOUT THE FURNACE
