Amana AIR COMMAND 80 User Manual

CHECK
LIMIT AND
FAN CONTROL
Check limit
control
operation after 15 minutes
of operation by
blocking the
return
air
grille(s).
(Fig. 10)
1. After
several minutes the
main burners must go
OFF.
Blower
will continue to run.
2. Remove
air restrictions
and
main burners
will relight
after
a
cooldown period of a few minutes.
Adjust the
thermostat setting below room
temperature.
1. Main burners
must go off.
2.
Circulating Air
Blower
should
continue to
run briefly until
sup-
ply air
temperature drops to
approximately 100-90 deg. F.
Fan and
limit controls are
preset at the
factory.
The
control
is
set for the fan to go
off at 100-90 deg.
F.
NOTE:
If necessary,
adjust fan ON/OFF settings to
obtain
satisfactory comfort
level. The fan
comes on at approx-
imately 125 deg. F.
A
CAUTION
Do
not
adjust
the fan
OFF setting
so
low
as to give
continuous fan
operation. The
burners
cannot
relight until after the sup-
ply
air
temperature is
low enough
to
shut
OFF
the
fan control. Because
of
this,
low
OFF settings of the
fan control could
cause the
building
to become
uncomfort-
ably cool before
the
burners could
relight.
A
WARNING
To
avoid
premature
failure
of
heat
exchanger or possible property damage,
injury or fire,
do
not adjust the limit
con-
trol,
which
is
factory preset.
CHECK TEMPERATURE RISE
Check the temperature rise
through the
unit by
placing ther-
mometers
in supply
and return
air
registers as close to the
furnace as possible.
1. All registers must be open;
all
duct dampers must be
in
their final (fully or partially open) position,
and the
unit
operated
for 15 minutes before taking readings.
2.
The
temperature rise must be
within
the range specified
on the
rating
plate.
NOTE:
Air
temperature
rise is the temperature
difference
between supply and
return
air.
With a properly designed
system,
the
proper amount
of
tem-
perature
rise
will
normally be obtained when
the
unit is
oper-
ated at
rated
input with the
recommended blower speed.
If
the correct
amount of temperature rise is not obtained,
it
may be necessary to
change the
blower
speed.
A higher
blower
speed
will lower the temperature rise.
A slower blower
speed
will
increase the
temperature rise.
NOTE:
Blower
speed must be
set to give the correct air tem-
perature rise through the
furnace as marked
on
the rating
plate.
CHECK MAIN BURNER FL ME
Flames
should be stable, soft and blue,
(dust
may cause
orange tips
but
they
must not
be
yellow). They should extend
directly outward
from the burner without curling,
floating or
lifting off.
(Fig. 11)
BLUE FLAMES
W/O
CURLING OR LIFTING
OFF BURNER AREA j
Fig. 11 —
Burner
Flame.
CHANGING
BL:I WER SPEEDS
A WARNING
To avoid
electrical shock, injury
or
death,
when changing speed taps turn off
power
to the
furnace.
A multi
-speed
motor is used in the furnace
blower. It provides
easy speed
selection for both heating and
cooling air flow.
Page 3 shows the CFM and
E.S.P.
relationship for proper
selection of heating and
cooling speeds.
Refer to the WIRING
DIAGRAM on the furnace
to connect
the proper wires to the correct
motor leads. All unused
motor
leads must have wirenuts.
ACAUTION
Some installations
will
use a different
blower
speed
for
cooling than
is used
for
heating. If
this is the
case, do not set the
thermostat
fan switch
to
ON
(constant
fan operation)
without first confirming
that
the
cooling fan
speed
will
give a
tem-
perature rise within
the limits listed
on
the unit
nameplate. Temperature rises
outside
of
the limits
listed could
result in
premature failure
of
the heat exchanger
or venting
system.
MAINTENANCE
A DANGER
To avoid
electrical shock, injury or death,
disconnect
electrical power
before
per-
forming any maintenance.
Have the furnace checked
at
least once
every
year, before
the
heating season begins, to be sure that
there
is adequate
combustion air
and that the
vent system
is working
properly.
Have chimney flue and
vent pipe
checked to be sure
they
are
not blocked by debris,
which
would permit
fumes to
enter
the
house. Replace
any
rusted
out vent
pipe.
AIR
FILTER
AWARNING
Never
operate
furnace without a
filter
installed
as dust and lint will
build up on
internal
parts resulting in
loss of
efficiency,
equipment damage and
possible fire.
11

Amana AIR COMMAND 80 Specifications

General

Model	AIR COMMAND 80
Category	Furnace
Efficiency	80% AFUE
Stages	Single-Stage
Filter Type	Standard
Fuel Type	Natural gas
Heating Capacity	40, 000 to 120, 000 BTU/h
Ignition Type	Hot surface
Warranty	10-year limited warranty
Vent Type	Atmospheric venting