Carrier UPFLOW 58BTA - Manual (Page 18)

USER'S INFORMATION
Here's How Your Heating System Works
The furnace operates automatically. It is controlled
by a thermostat which you set at the temperature most
comfortable to you. When the inside temperature drops
below this setting, your thermostat will turn on the
heating system.
When the thermostat calls for heat, power from the
transformer energizes the fan control board. The fan
control energizes the ignition control. The ignition
control will light the burner automatically.
The electronic fan control will automatically turn on
the blower after 30 seconds. Fan "ON" control is not
adjustable. The air moved over the heat exchanger by
the blower is warmed and passes through the ducts to
the room registers.
When the thermostat is satisfied, the circuit is de­
energized and the primary control shuts off the burner.
The blower continues to run until the selectable fan off
time period has expired.
The heat sensing switch performs as the furnace
high temperature limit switch. If the furnace overheats
for any reason, the limit switch opens, breaking the
circuit to the burner. The blower motor will be
energized and as the unit cools the limit switch will
close. This will relight the burner and unless the
overheating condition is corrected, the furnace will cycle
on limit.
This unit is equipped with an interrupted ignition
electronic control. If the main burner does not ignite
within 15 seconds from the call for heat, the conirol will
go into lockout. The red button on top of the control
must be depressed for 3 seconds in order to reset the
control. The control can not be reset from the room
thermostat.
1. Open all warm air registers and make sure that all
return air grills are unobstructed.
2. If a humidifier is installed with your system, open
the water supply valve.
3. Set the thermostat to its lowest setting.
4. Turn "ON" the electric power to the furnace.
5. Open the oil supply valve.
6.
Check all connections to insure there are no leaks.
Lighting Your Furnace
CAUTION
This furnace is equipped with an interrupted type
electronic ignition system. DO NOT ATTEMPT TO
LIGHT
WITH A MATCH. DANGER! HIGH
VOLTAGE AT IGNITOR.
1. This appliance is equipped with an ignition device
which automatically lights the burner. Do not try to
light the burner by hand.
2. After preparing the furnace for heating operation
(See previous section) and checking for oil, proceed
as follows.
3. For heating/cooling system, set the thermostat
system switch to "HEAT" and the fan switch to
"AUTO". Set the thermostat to the desired room
temperature and turn on the electrical power to the
furnace.
4. The burner should light and the system should be
controlled by the thermostat.
HEATING
Preparing Furnace For Operation
Before attempting to put your furnace into operation
for the heating season you should perform the following
procedures.
WARNING
If you do not follow these instructions exactly, a fire
or explosion may result causing property damage,
personal injury or. loss of life.
Turn Off Furnace
Follow these simple procedures to put your furnace
into "retirement" for the summer.
1. Set the thermostat to the lowest setting
2. Turn "OFF" all electric power to the appliance.
3. Turn the oil supply "OFF".
4. If applicable, turn "OFF" water supply to humidifier.
5.
If furnace blower will be necessary for cooling
system, remember to turn electric power back on
when needed for air conditioning.
FOR SERVICE CALL
NAME:
ADDRESS:
TELEPHONE:
Issue 9413
20142901 1818