Olsen HTL-90D - Oil Burner Operation

19
OIL BURNER OPERATION
Once the furnace ue pipe, electrical and oil line connections have
been made, use the following instructions to set the burner:
Shut o the electrical power to the furnace.
Install an oil pressure gauge to the pressure port on the oil pump.
(Refer to the oil pump specication sheet included with the burner
instructions).
Restore electrical power to the furnace.
Start the furnace and bleed all air from the fuel oil lines.
Close the purge valve and re the unit.
Allow the furnace to warm up to normal operating temperatures.
During this time, set the pump pressure in accordance with the data
provided in
Tables 3A, B & C , page 11 .
When the furnace has reached "steady state" (aer approximately 10
minutes). Set combustion air damper to get a TRACE of smoke.
Check the system temperature rise. e temperature rise is the
dierence between the return air temperature measured at a point
near the return air inlet, and the supply air temperature measured
near the furnace outlet. e system temperature rise is listed on the
furnace rating plate. If the temperature rise is too high, the airow
must be increased. If the temperature rise is too low, the fan should
be slowed down.
Turn o the burner. Observing the duct thermometer in the supply
air stream, note the temperature at which the blower fan stops. e
fan adjustments can be made by moving the dipswitch settings on
the timer control board for fan o delay.
To check the operation of the limit switch, shut o power to the
furnace. Temporarily remove the neutral wire from the direct drive
blower motor. Restore the electrical power to the furnace and set
the thermostat above room temperature. Aer three or four minutes
of burner operation, the limit control should turn the burner o.
When the limit function test is complete, shut o electrical power
to the furnace, replace the neutral wire to the blower fan motor, and
then restore power. e blower fan will start up immediately. Once
the temperature has dropped and the limit control has reset, the fan
will operate until the fan o time is achieved. e oil burner will
then resume operation and continue until the thermostat is satised.
Restore the thermostat setting to a comfortable temperature.
Set the heat anticipator adjustment in the thermostat (if so
equipped), by removing the "R" or "W" wire to the thermostat, then
reading the amperage draw between the two wires. Failure to remove
one of the wires from the thermostat while performing this test
could burn out the heat anticipator. Set the heat anticipator to the
amperage measured.
NOTICE
THE FURNACE SHOULD BE RUN THROUGH AT
LEAST THREE FULL CYCLES BEFORE LEAVING THE
INSTALLATION, TO ENSURE THAT ALL CONTROLS
ARE OPERATING PROPERLY AND AS EXPECTED.
NOTICE
ALL JOINTS IN ANY POSITIVE PRESSURE VENTING
SYSTEM MUST BE CHECKED FOR LEAKS BEFORE
LEAVING THE INSTALLATION SITE.