How To Care For Your Furnace - Williams 509622A Owner's Manual & Installation Instructions

CARING FOR YOUR FURNACE
CLEANING BLOWER (IF APPLICABLE)
Shut off electricity. Clean any lint or dirt from fan blades,
fan motor and exposed air passages.
PILOT BURNER
Using the instructions in "Lighting the Pilot", leave
thermostat at its lowest setting.Pilot flame should surround
the generator tip 1/4 to 3/8-inches. If flame needs
adjusting, do so as follows:
1. Insert small screwdriver into the pilot adjusting
screw Figure 23. Adjust flame as needed. Turn screw
counterclockwise to increase flame, clockwise
to decrease.
2. Turn thermostat to highest setting. Main burner should
light quickly and smoothly. Turn thermostat to lowest
setting. Main burner should go out. Pilot should
remain lit.
FIGURE 23 ADJUSTING THE PILOT
VENT SYSTEM
Make sure that no parts of the venting system are blocked
or rusted. Clean or replace before using the furnace.
BURNER CLEANING
If cleaning is required, contact a qualified service technician
to clean and service burner. To remove burner(s):
1. Open burner compartment door.
2. Shut off gas supply to furnace.
3. Disconnect gas line inside cabinet at ground joint union
fitting. Figure 24
4. Remove (2) screws securing burner pan assembly to
inner liner.
5. Pull burner pan assembly forward approximately
1/2-inch and drop down to expose the top of the burner.
6. Clean all foreign materials from the top of the burner.
7. After cleaning, replace burner pan assembly by
reversing above procedure.
FIGURE 24 DISCONNECTING GAS LINE
CLEANING THE BURNER COMPARTMENT
Because cold air is attracted to the flame during furnace
operation, a buildup of lint from carpeting, bedding, dust,
etc. in the burner area will occur. It is necessary to clean
this area regularly. Use a vacuum cleaner with a narrow
attachment to reach small areas. Be careful in and around
the pilot. A change in its adjustment could be made if
moved during cleaning. A properly adjusted burner with
nearly all gases will produce a flame which has clear blue
cone having a bluish-red or bluish-violet outer mantle.
DANGER: The build-up of any dust, lint or foreign
material in the primary air opening of the burner can
interfere with the proper air gas mixture and can result
in a yellow flame which can produce carbon monoxide
and soot. This condition, if allo wed to develop, can lead
to bodily injury incl uding death. It is imperative that
the burner be kept clean.
MONTEREY TOP VENT GAS WALL HEATER
25