Bryant 364AAN - Manual (Page 15)

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USER’S INFORMATION
I. HERE’S HOW YOUR HEATING SYSTEM WORKS
The furnace operates autpipaMcaJly, It is controlled by a thermostat
which you set at temperature most comfortable to you. When the
inside temperature drops below this setting, your thermostat will
turn on heating system.
When thermostat call for heat, power from transfotmer energizes
fan control board* The fan control energizes ignition control. The
ignition control lights burner automatically.
The electronic fan control automatically turns On blower after 30
sec. Fan on control Js not adjustable. The air moved over heat
exchanger by the blower is warmed and passes through ducts to
room registers.
When thermostat is satisfied, the circuit is de-energized and
primary control shuts off burner. The blower continues to run until
selectable fan off time period has expired.
The heat sensing switch performs as furnace high-temperature
limit switch. If furnace overheats for any reason, the limit sviijtch
opens, breajiing circuit to burner. The blower motor is energized,
and as unit cools, the limit switch closes. This will relight burner,
but unless overheating condition is corrected, furnace will cycle on
limit.
This unit is equipped with an interrupted ignition electronic
control. If main burner does not ignite within 15 sec from cal) for
heat, the control goes into lockout. The red button
On top of control
must be depressed for 3 sec in order to reset control. The control
CANNOT be reset from room thermostat.
II. PREPARING YOUR FURNACE FOR OPERATION
Before attempting to put your furnace into operation for the
heating season, you should perform the following procedures:
A
WARNING; If you do not follow these instructions
exactly, a fire or explosion may result causing property
damage, personal injury, or loss of life.
2. If a humidifier is installed with your system, open water
supply valve.
3. Set thennostat to lowest setting.
4. Turn On electric power to furnace.
5. Open oil supply valve.
6. Check all connections to ensure there are no leaks.
Ill, LIGHTING YOUR FURNACE
A
CAUTION; This furnace is equipped with an interrupted
type electronic ignition system. DO NOT ATTEMPT TO
nOHT WITH A MATCH.
HIGH VOLTAGE AT IGNITOR.
1, Open all warm-air registers and make sure all retum-air
grilles arc unobstructed.
1. This appliance is equipped with an ignition device which
automatically lights burner. Do NOT try to light burner by
hand.
2. After preparing furnace for heating operation (see previous
section) and checking for oil, proceed as follows,
3. For heating/cooling system, set thermostat to HEAT and fan
to AUTO. Set thermostat to desired room temperature and
turn on electrical power to furnace.
4. The burner should light and system should be controlled by
thermostat.
IV. TURNING OFF YOUR FURNACE
Follow these simple procedures to put your furnace into "retire­
ment" for the summer.
1. Set thermostat to lowest setting.
2. Turn off all electrical power to appliance.
3. Turn Off Oil supply.
4. If applicable, turn off water supply to humidifier.
5. If furnace blower will be necessary for cooling system,
remember to turn electrical power back on when needed for
air conditioning.
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