Flue Passages - Amana AIR COMMAND 80 Manual

This furnace is equipped with a permanent type washable
high-velocity filter(s). After filter is washed and dry it should
be sprayed with adhesive for best efficiency. (Type may be
shown on the filter frame). Filter(s) should be inspected and
cleaned every two months as required. If the replacement of
the filter(s) becomes necessary, it must be replaced with a
filter of the same type and size.
Remember that dirty filters are the most common cause
of inadequate heating or cooling performance.
FILTER REMOVAL
TOWARDS BLOWE
®3 PULL FILTER OUT
Fig. 12 — Filter Removal.
To remove the filter turn the latches on lower door. Remove the
door. The blower motor will automatically stop through the inter-
lock switch.
The filter may be removed by taking a hold of the lower portion
of the filter, lift up to disengage it from the lower railing, move
towards blower, drop filter down. Pull filter outward. (Fig. 12)
If side return(s) is (are) used, the filter(s) must be of the perma-
nent washable type with dimensions of 16 x 25 x 1.
Use a vacuum cleaner to clean out the blower area and the
adjacent area of the return air duct.
Clean, wash and dry the permanent filter. Both sides should
then be sprayed with a dust adhesive as recommended on
adhesive container. Re-install filter by placing it into the furnace
along the side of the blower. Engage filter in the top rail, move
towards side of furnace and drop it into the bottom rail. BE
SURE AIRFLOW DIRECTION ARROW POINTS TOWARDS
BLOWER.
When the filter is located in the bottom of the furnace on a bot-
tom return system the filter is held in its location by a sheet metal
retainer strap. To change or clean the filter merely slide one end
of the retainer towards the front and remove the filter.
BLOWER MOTOR, COMPARTMENT, WHEEL
Once each year oil your blower motor by adding 4 to 6 drops of
SAE#20 or #30 motor oil to each motor bearing oil tube. DO
NOT OVER OIL.
(Note: Some blower motors may be permanently lubricated and
do not require oiling. This type of motor does not have oil ports.)
At least once a month during the heating and cooling seasons,
remove the blower compartment door and clean the compart-
ment of any dirt and lint that may have accumulated there.
Periodically check the blower wheel in your furnace and clean if
necessary using a bristle brush.
VENT BLOWER MOTOR
The vent blower motor may be oiled annually with 6 drops of
Anderoil 465 oil. (3 drops in each oil port-Fig. 13).
OIL PORTS
Fig. 13 — Vent Blower Motor.
FLUE PASSAGES
At the start of each heating season, inspect and if necessary,
clean the furnace flue passages.
CLEANING FLUE PASSAGES (QUALIFIED SERVICEMAN
ONLY)
1. Shut off electric power and gas supply to the furnace.
2. Remove burner assembly by disconnecting the gas line and
removing the manifold brackets from the partition panel.
3. Remove the flue from the induced draft blower and the collec-
tor box from the partition panel.
4. The primary heat exchanger tubes can be cleaned using a
round wire brush attached to a length of high grade stainless
steel cable, such as drain cleanout cable. Attach a variable
speed reversible drill to the other end of the spring cable.
Slowly rotate the cable with the drill and insert it into one of
the primary heat exchanger tubes. While reversing the drill,
work the cable in and out several times to obtain sufficient
cleaning. Repeat for each tube.
5. When all heat exchanger tubes have been cleaned, replace
the parts in the reverse order in which they were removed.
BURNERS
A
WARNING
Electrical components are contained in the
upper compartment. To avoid electrical
shock, injury or death, do not remove any
internal compartment covers or attempt
any adjustment. Contact a qualified serv-
ice agent at once if an abnormal flame
appearance should develop.
Periodically during the heating season make a visual check of
the burner flames. Turn the furnace on at the thermostat. Wait a
few minutes, since any dislodged dust will alter the normal flame
appearance. Flames should be stable, quiet, soft and blue with
slightly orange tips. They should not be yellow. They should
extend directly outward from the burner ports without curling
downward, floating or lifting off the ports. (See Fig. 11)
12