Bryant 340AAV User's Information Manual page 6

floor. If you smell gas, STOP! Fol-
low "B" on furnace label. If you
don't smell gas, go to next step.
6. After waiting 5 minutes, turn con-
trol switch on the gas valve to the
ON position. (See Fig. 16 or 17.)
7. Replace main furnace door.
(See Fig. 18.)
A05087
OR
For 352AAV and 355AAV
ON
A05118
For 340AAV and 350AAV
OR
For 352AAV and 355AAV
For 340AAV and 350AAV
8. Turn ON electrical supply to the
furnace and wait 1 minute.
(See Fig. 19.)
9. Open the external manual gas
valve. (See Fig. 20.)
10. Set room thermostat to a tempera-
ture slightly above room tempera-
ture. This will automatically
signal the furnace to start.
11. When the furnace receives the
start signal, the inducer is started.
When the pressure switch senses
13 that there is sufficient combustion
air, the hot surface igniter is ener-
gized. After the hot surface igniter
is heated for 17 seconds, the gas
valve permits gas to flow to the
main burners. After ignition and a
time delay of about 60 sec, the fur-
nace blower will start. Variable-
capacity furnaces start at low
speed until the control makes the
A02266 necessary adjustments to operate
the blower at either the low- or
high-heat speed.
14
15
A02267
16
17
NOTE:
4 attempts, the furnace control system
will lock out. If lockout occurs, main
burners fail to light, or blower does not
come on, shut down the furnace and
call your dealer for service.
12. Set your thermostat to the temper-
A05088
18
19
6
If the burners fail to ignite after
ature that satisfies your comfort
requirements.
SUGGESTION: Setting the ther-
mostat back a few degrees and
compensating for the difference
with warmer clothing can make a
big difference in your fuel con-
sumption. The few degrees at the top
of your thermostat "comfort level"
are the most costly degrees to obtain.
When room temperature drops
below the temperature selected
on the thermostat, the furnace
will be switched on automatically.
When room temperature reaches
the temperature selected on the
thermostat, the furnace will be
switched off automatically.
Some thermostats have a FAN
mode with 2 selections, AUTO
and ON. When thermostat is set
to AUTO, the furnace blower
cycles on and off. In ON mode, the
furnace blower runs continu-
ously. Continuous fan keeps the
temperature level in your home
more evenly balanced. It also per-
mits the indoor air to be continu-
ously filtered. Fan On Plus ™ –On
all but the 340AAV, the blower
speed can be increased or
decreased if desired due to change
of seasons, large gatherings in
your home, etc. Simply change
your FAN from ON to OFF (or
AUTO depending on your thermo-
stat), and then return to ON. The
blower will switch to the next
highest speed. There are at least 3
speeds to choose from. If the
blower is running on its highest
speed, a request to change will
direct the blower to return to its
lowest speed.
20