Bryant 345MAV User's Information Manual page 5

2. Close the external manual gas
valve. (See Fig. 7.)
3. Turn off electrical supply to the fur-
nace. (See Fig. 8.)
4. Remove the main furnace door.
(See Fig. 9.)
5. Gas valve will have a control
switch to turn OFF or ON. Turn
control switch on the gas valve to
the OFF position and wait 5 min-
utes. (See Fig. 10.) Then smell for
gas, including near the floor. If you
smell gas, STOP! Follow operating
instructions on main furnace door.
6. After waiting 5 minutes, turn con-
trol switch on the gas valve to the
ON position.
(See Fig. 11.)
7. Replace main furnace door.
(See Fig. 12.)
8. Turn on electrical supply to the fur-
nace and wait 1 minute.
(See Fig. 13.)
9. Open the external manual gas
valve. (See Fig. 14.)
10.Set room thermostat to a tempera-
ture slightly above room tempera-
ture. This will auto-matically signal
the furnace to start.
11.When the furnace receives the start
signal, the inducer is started. When
the pressure switch verifies that
there is sufficient combustion air, the
control energizes the hot surface
ignitor. After the hot surface ignitor
is heated for 17 sec, the gas valve
permits gas to flow to the main burn-
ers. After ignition and a time delay
of approximately 60 sec, the furnace
blower starts.
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NOTE: If the burners fail to ignite after
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-
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
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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-
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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.
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