Carrier 58EJA - Manual (Page 9)

3. Bend the formed wire filter retainer to clear the furnace
flange at one side.
4. Pivot the filter retainer toward the blower. (See Fig. 16.)
Inspect the gas burners for dirt, rust, or scale. (See Fig. 18.)
Then inspect the vent outlet area and vent pipe.
5. Remove the filter from the furnace.
6. Inspect the filter. If torn, replace it.
7. Wash the filter (if dirty) in a sink, bathtub, or outside with
a garden hose. Always use cold tap water. A mild liquid de­
tergent may be used if necessary. Spray water through the
filter in the opposite direction of airflow through the cross­
mesh binding side. Allow filter to dry.
8. Reinstall the clean filter with the cross-mesh binding side
facing the furnace blower.
9. Replace blower door, reinstall 4 screws (see Fig. 17) and
turn OM electrical power to your furnace.
17
A91185
COMBUSTION AREA AND VENT SYSTEM
Visually inspect the combustion area and vent system before
each heating season. Make sure that all PVC pipes leading into
the combustion area and vent are free from any cracks and sags.
Also check the combustion air intake and vent pipes on the out­
side of your home for blockage.
When dirt, soot or rust is allowed to build up, your furnace can
suffer a loss of efficiency and perform improperly. Accumula­
tions on the main burners can result in their firing out of nor­
mal sequence. This delayed ignition will create an alarmingly
loud sound.
A CAUTlOÑ
If your furnace makes an especially loud noise when the
main burners light, shut down your furnace and call your
dealer.
Tb inspect the combustion area and vent system, you will need
a flashlight. Refer to Fig. 2, and proceed as follows:
1. Tarn OFF the electrical supply to your furnace.
2. Remove burner enclosure front.
A CAUTION
If dirt, rust, soot, or scale accumulations are found, call
your dealer.
Do not operate your furnace.
3. Inspect the vent pipe for sag, holes, cracks, or dis­
connection. Any horizontal vent pipe must slope upward,
away from the furnace; look for signs of water leakage.
A DANGER
If holes are found in the vent pipe, or if it has become dis­
connected, toxic fumes can escape into your home. DO
NOT OPERATE YOUR FURNACE. Call your dealer for
service.
4. Reinstall the burner enclosure front.
5. If your furnace is free of the above conditions, restore elec­
trical power to your furnace. (See Fig. 10.)
6. Start your furnace and observe its operation. Watch the
burner flames to see if they are bright blue. (See Pig. 19) If
you observe a suspected malfunction, or the burner ñames
are not bright blue, call your dealer.
HEADING SOUTH FOR THE WINTER?
DON’T FORGET YOUR FURNACE!
Since the furnace uses a condensing heat exchanger, some wa­
ter will accumulate in the unit as a result of the heat transfer
process. Therefore, once it has been operated, it cannot be
turned off and left off for an extended period of time when tem­
peratures will reach 32°F or lower, unless winterized. Follow
these procedures to winterize your furnace:
1. Mix a solution of equal amounts of ethylene glycol (Pres­
tone II antifreeze coolant or equivalent) and water.
2. Tbm OFF electrical supply to furnace. (See Fig. 8.)
3. Disconnect drain tube from bottom of inducer vent outlet.
(See Pig. 20.)
4. Insert funnel in drain tube and pour antifreeze/water solu­
tion into furnace until it is visible at point where conden­
sate enters open drain. (See Fig. 21.)
5. Reconnect drain tube to vent outlet.