Stay Safe - Williams 509622A Owner's Manual & Installation Instructions

OPERATING YOUR FURNACE
Start-Up Procedure
CHECK PILOT BURNER
The pilot flame must surround the generator tip from 1/4 to
3/8-inches. Pilot flame is preset at the factory, so ordinarily
it does not require field adjustment. Figure 19. On new
installations, the gas lines will be filled with air and may take
several minutes to establish a pilot flame.
FIGURE 19 CHECK PILOT BURNER
BURNER FLAME CHARACTERISTICS
Start the furnace and let it operate at least ten minutes.
Open the access door to view the burner flame. Limit your
movements near the furnace a few more minutes before
making your final observations. The flame may look yellow
due to dust particles in the room air. The flame should
change to a nice blue color with firm inner and secondary
cones. An occasional flash of orange might be seen as
dust particles burn in the flame. This is normal. No burner
adjustment is provided, or is necessary. (Figure 20).
FIGURE 20 BURNER FLAME CHARACTERISTICS
NORMAL APPEARANCE
NATURAL GAS:
1. Inner cone-blue in color-3/8 to 5/8-inches above ports.
2. Secondary inner cone-light blue in color-1 to 2-inches
above ports.
3. Total flame-from blue in color to nearly invisible -
approximately 6-inches above ports.
22
MONTEREY TOP VENT GAS WALL HEATER
(continued)
PROPANE GAS:
1. Inner cone-blue in color-1/2 to 3/4-inches above ports.
2. Secondary inner cone-light blue in color-1 to 2-inches
above ports.
3. Total flame-from blue in color to nearly invisible-
approximately 6-inches above ports.
ABNORMAL APPEARANCE
LAZY FLAME:
Long, soft yellow cones moving around in the combustion
chamber lifting from ports (insufficient air).
EXTREMELY FAST FLAME:
Flame will not hold to ports-entire cone sections blow off
from noisy ports (too much pressure).
WARNING: If flame appears abnormal, contact
the gas company or a qualified service technician
immediately.
WARNING: Read owner's manual before using /
installing. Be sure CHANGED LIGHTING INSTRUCTION
TAG hangs at the lowest position in the furnace under /
below the heat shield.
For your safety, read before
lighting the pilot
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing property
damage, personal injury or loss of life.
LIGHTING THE PILOT
A. This appliance has a pilot which may be lit by hand.
When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell around the appliance area for
gas. Be sure to smell next to the floor because some
gases are heavier than air and will settle on the floor.
C. Use only your hand to push in or turn the gas control
knob. Never use tools. If the knob will not push in
or turn by hand, don't try to repair it, call a qualified
service technician. Force or attempts to repair may
result in a fire or explosion.
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.