Oil Furnace Installation Manual

506793-02B Page 11 of 16Issue 1810
Filters
Upow and Horizontal/Counterow
Air lters are not factory supplied with these models. Filters
must be installed in the return duct system. Optional lter
kits are available. Contact the supplier to obtain the correct
lter kit.
Optional lter kits:
• Kit for 57/72 & 84/95 units - #AFILT535-1
• Kit for 112/125 Units - #AFILT536-1
Basement
Permanent lters are supplied with these units. To clean
the lters, shake to remove any excess dirt and/or use a
vacuum cleaner. Wash with soapy detergent water and dry.
Metal permanent lters need to be oiled after washing to
increase their effectiveness. The lters should be cleaned
at least once a month, or more frequently in unusually
dusty environments.
Never leave the access panels to the blower
compartment off or partially open.
Start-Up
Oil Burner
Burner Specication: Factory Settings
1. Burner type: AFG (57 - 125)
2. Air Tube Combination:
AF46XZTHS (57/72)
AF46XNHS (84/95)
AF46WPHS (112/125)
3. AFG Static Plate
2-3/4” (57/72) (84/95)
3-3/8” (112/125)
Do Not attempt to start the burner when excess oil has
accumulated in the chamber, when the furnace is full
of vapor, or when the combustion chamber is very hot.
Such actions could result in property damage, personal
injury, or death.
WARNING
energized whenever the thermostat calls for heat, cooling,
or continuous blower. Refer to the furnace wiring diagram
for specic connection information (see also Figure 10).
Do Not start burner unless blower access door is
secured in place.
CAUTION
Burner Start-Up
1. Set the operating control to call for heat.
2. Open all shutoff valves in the oil supply line to burner.
3. Close the line switch to the burner. If the burner does
not start immediately, check the manual overload
switch on the motor (if applicable), and the safety
switch of the furnace primary control.
4. While the ignition is on, press and release the reset
button (hold 1/2 second or less). If the control has not
locked out since its most recent complete heat cycle,
the lockout time will be extended to 4 minutes, and the
ignition will remain on for the entire heat cycle.
5. Bleed the pump until all froth and bubbles are purged.
The bleed port is located on the bottom of the fuel
pump. To bleed, attach a clear plastic hose over the
vent plug. Loosen the plug and catch the oil in an
empty container. Tighten the plug when all the air if
purged.
NOTE: Bleeding might not be necessary with a two-
pipe system.
6. If prime is not established within the extended lockout
time, the control will lock out. Press the reset button to
reset the control (see Step 4).
NOTE: The reset button can be held for 15 seconds
for the Beckett 7505B primary control, at any time to
reset the control’s lockout counter to zero and send the
control to standby.
7. Repeat Steps 4 and 5, if needed, until pump is fully
primed and oil is free of bubbles. Then terminate
the call for heat, and the control will resume normal
operation.
Burner Adjustment
All adjustment to this furnace and its components
must be done by a qualied service technician.
Refer to Table 2 for nozzle and pump pressure information.
The proper way to adjust an oil burner is with a CO
2
analyzer and a smoke gun. A properly adjusted burner will
result in a quiet, clean re which will prevent sooting and
frequent cleaning. To establish tolerance or a “window of
operation” into the unit, do not exceed #1 smoke. This will
give the burner more exibility when there are changes in
the surrounding environment.