240005126 Rev A 10/27/2005
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are present, please advice your service or installation
contractor.
Annual Service By Contractor
THE COMBUSTION CHAMBER (FIREPOT) IS
FRAGILE. USE CARE WHEN INSPECTING
AND CLEANING THIS AREA.
The heat exchanger should be inspected periodically
and cleaned if necessary. If cleaning is necessary,
SHUT OFF POWER TO THE FURNACE
and remove
the burner. Using a stiff brush with a wire handle,
brush off scale and soot from inside the drum and flue
pipe. To clean the radiator, remove the round covers
on the inner front panel to gain access to the cleaning
ports. When this procedure is done for the first time,
carefully cut away the insulation covering the opening
with a sharp knife. Loosen the nuts on the radiator
clean-outs.
DO NOT REMOVE THE NUTS
. Remove
the covers carefully to avoid tearing the gaskets. A
wire brush can be used to loosen dirt and debris on the
inside surfaces of the radiator. Clean out all
accumulated dirt, soot and debris with a wire handled
brush and an industrial vacuum cleaner. Before
replacing the clean-out covers, inspect the gaskets. If
the gaskets are broken, remove the remnants and
replace with new gaskets. Snug the cleanout covers.
DO NOT OVER-TORQUE THE CLEAN-OUT
NUTS
.
Replace the inner front panel clean-out covers.
NOTE
: A radiator clean-out assembly inadvertently
dropped into the interior of the furnace can usually be
easily retrieved with a magnet on a wire handle or
stout string.
The blower motor is factory oiled. Under normal
operating conditions it does not require additional
oiling. If the blower motor is equipped with oil ports, oil
sparingly (a few drops) in each oil port with SAE 20
non-detergent oil. Oiling is most easily done with a
"tele-spout" oiler. This oiler has a long flexible plastic
spout.
DO NOT OVER-LUBRICATE
. Excess oil
causes premature electric motor failure.
Inspect the blower fan. Clean if necessary.
Oil Burner Maintenance: Follow the instructions of the
oil burner manufacturer. (See oil burner manufacturer's
instructions supplied with furnace or burner). It is
advisable to change the oil burner nozzle and oil filter
on an annual basis.
The venting system should be cleaned and inspected
for signs of deterioration. Replace pitted or perforated
vent pipe and fittings. The barometric damper should
open and close freely.
All electrical connections should be checked to ensure
tight connections. Safety controls such as the high limit
controls should be tested for functionality. The fan
control should be checked to ensure that the fan on
and off delay function continues to start and stop the
blower fan at the prescribed settings.
22. OPERATING INSTRUCTIONS
BEFORE LIGHTING
1.Open all supply and return air registers.
2.Open all valves in oil pipes.
3.Turn on electric power supply
TO LIGHT UNIT
1.Set the thermostat to call for heat. The burner
should
start.
NOTE: It may be necessary to press the
RESET button on the primary combustion control
relay.
2.After a short period of time the blower should
start.
3.Set the thermostat down to lowest setting. The
burner should stop.
4.The air circulation blower remains in operation
as long as the temperature in the furnace is higher
than the "FAN OFF" setting on the fan control. If
the air at the room registers is uncomfortably high
upon blower start up, or shutdown, set the
temperature on the fan control to a lower setting.
5.To check the operation of the limit switch, for belt
drive units, shut power off to unit and remove the
fan belt, for direct drive units disconnect the
neutral wire from the motor and isolate it, turn
power back on and set the thermostat to call for
heat. After three or four minutes of burner
operation, the limit control should turn the burner
off. Shut power off to the unit, replace fan belt,
replace neutral wire, turn power back on. The
blower will run until the heat exchanger cools
down.
TO SHUT DOWN UNIT
1.Set the thermostat to the lowest possible setting.
2.Set the manual switch (if installed) in the
Electrical Power Supply Line to "OFF".
3.If the burner is to shut down for an extended
period of time, close the oil valve tightly.
