Desa FB-10BA - Manual (Page 12)

12 105565
PROPANE/LP GAS HEATER
THERMOSTAT MODEL FBS-10BB
FOR YOUR SAFETY
READ BEFORE
LIGHTING
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all
around the appliance area for gas. Be
sure to smell next to the floor because
some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas sup-
plier, call the fire department.
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 or gas
supplier. Force or attempted 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 con-
trol which has been under water.
WARNING: If you do not fol-
low these instructions exactly, a
fire or explosion may result caus-
ing property damage, personal
injury or loss of life.
LIGHTING
INSTRUCTIONS
1. STOP! Read the safety information,
column 1.
2. Make sure equipment shutoff valve
is fully open.
3. Push in control knob slightly and turn
clockwise
to the OFF position
(see Figure 19). Be sure that the tem-
perature setting knob is set at the line
between level 1 and level 7.
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 in column 1. If you don’t
smell gas, go to the next step.
5. Push in and turn control knob coun-
terclockwise
to PILOT po-
sition. Press in control knob for
five(5) seconds.
Note: You may be running this
heater for the first time after hook-
ing 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.
6. Release downward pressure on con-
trol knob and turn clockwise
to OFF position.
7. Press in control knob and turn coun-
terclockwise
past IGN to
PILOT (see Figure 19). This will
cause the piezo ignitor to spark and
light the pilot gas. Keep control knob
depressed for 10 seconds before re-
leasing. If needed, repeat steps 5
through 7 until pilot lights.
Figure 19 - Dual Control for Thermostat
Model FBS-10BB
Figure 20 - Pilot
Ignitor Electrode
Pilot
Burner
Thermocouple
OPERATING
HEATER
Continued
OFF
ON
PILOT
IGN
1
7
3
5
4
6
2
TO TURN OFF GAS TO
APPLIANCE
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 position.
THERMOSTAT
CONTROL
OPERATION
The thermostatic control used on this
model differs from standard thermo-
stats. Standard thermostats simply turn
on and off the burner. The thermostat
used on this heater senses the room tem-
perature. At times the room may exceed
the set temperature. If so, the burner
will shut off. The burner will cycle back
on when room temperature drops below
the set temperature. The control knob
can be set to any comfort level between 1
and 7.
Note: The thermostat sensing bulb mea-
sures the temperature of air near the
heater cabinet. This may not always
agree with room temperature (depend-
ing on housing construction, installation
location, room size, open air tempera-
tures, etc.) Frequent use of your heater
will let you determine your own comfort
levels.
Note: If pilot does not stay lit, refer
to Troubleshooting, pages 14 through
16. 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, page 13.
8 . When pilot is lit, turn the ignition
knob to ON position (see Figure 19).
9. To select desired heating level, turn
the temperature setting knob coun-
terclockwise
between 1 and
7 (see Figure 19).