Desa FAS-3B - Manual (Page 12)

12 105566
INFRARED NATURAL GAS HEATER
TO SELECT
HEATING LEVEL
Slightly press in control knob and turn coun-
terclockwise
to the LOW, ME-
DIUM, or HIGH positions (see Figure 18).
IMPORTANT: Release downward pres-
sure while turning control knob. Control
knob will lock at the desired position.
WARNING: When running
heater, set control knob at LOW,
MEDIUM, or HIGH locked posi-
tions. Never set control knob be-
tween locked positions. Poor
combustion and higher levels of
carbon monoxide may result.
CAUTION: Do not try to adjust
heating levels by using the
manual shutoff valve.
1. STOP! Read the safety information
page 11, column 3.
2. Make sure manual shutoff valve is
fully open.
3. Turn control knob clockwise
to the OFF position.
4. Wait five minutes to clear out any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP! Follow “B” in the safety in-
formation page 11, column 3. If you
don’t smell gas, go to the next step.
5. Press in and turn control knob coun-
terclockwise
to PILOT/IGN
position. Press in control knob for
five(5) seconds (see Figure 18).
Note: You may be running this heater
for the first time after hooking up to
gas supply. If so, you may need to press
in control knob for 30 seconds. This will
allow air to bleed from the gas system.
• If control knob does not pop up when
released, contact a qualified service
person or supplier for repairs.
6. Release downward pressure on con-
trol knob and turn clockwise
to OFF position.
7. Press in control knob and turn back
to PILOT/IGN. This will cause the
piezo ignitor to spark and light the
pilot gas. If needed, repeat steps 5
through 7 until pilot lights.
Note: If pilot does not stay lit, refer
to Troubleshooting, pages 15 through
17. Also contact a qualified service
person or gas supplier for repairs.
Until repairs are made, light pilot
with match. To light pilot with match,
see Manual Lighting Procedure.
8 . Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
Note: If pilot goes out, repeat steps
3 through 7.
OPERATING
HEATER
Continued
Ignitor Electrode
Pilot Burner
Thermocouple
Figure 17 - Pilot
LIGHTING
INSTRUCTIONS
Figure 16 - Control Knob In The OFF
Position
TO TURN OFF GAS TO
APPLIANCE
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Light-
ing Instructions.
2. With control knob pressed in, strike
match. Hold match to pilot until pi-
lot lights.
3. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
Shutting Off Heater
1. Turn control knob clockwise
to the OFF position.
2. Turn off all electric power to the ap-
pliance if service is to be performed.
Shutting Off Burner Only (pilot
stays lit)
Turn control knob clockwise to
the PILOT/IGN position.
Figure 18 - Burner Patterns
Control
Knob FA-3B FA-5B
LOW
HIGH
OFF
MED