www.desatech.com
15
113048-01F
TO SELECT
HEATING LEVEL FOR
INFRARED HEATERS
WARNING: When running
heater, set control knob at LOW,
MED or HI locked positions.
Never set control knob between
locked positions. Poor combus-
tion and higher levels of carbon
monoxide may result.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
Slightly press in control knob and turn coun-
terclockwise
to the LOW, MED or HI
positions (see Figure 22 or 23).
IMPORTANT:
Release downward pressure
while turning control knob. Control knob will
lock at the desired position.
Control 3 Plaque
5 Plaque
Knob
Models
Models
LOW
HIGH
OFF
MED
Figure 22 - Burner Patterns for Non-
Thermostat Models
Figure 21 - Pilot
Ignitor
Electrode
Pilot
Burner
Thermocouple
OPERATING HEATER
Continued
Figure 23 - Burner Patterns Thermostat
Models
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 appliance
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 these models
differs from standard thermostats. Standard
thermostats simply turn on and off the burner.
The thermostat used on this heater senses the
room temperature. 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
heat level between 1 and 5.
For Infrared Models
,
all plaques will turn off and on.
For Blue Flame
Models
, this adjusts the amount of gas flow
to the burner that increases or decreases the
burner flame height.
Note:
The thermostat sensing bulb measures
the temperature of air near the heater cabinet.
This may not always agree with room tem-
perature (depending on housing construction,
installation location, room size, open air tem-
peratures, etc.) Frequent use of your heater will
let you determine your own comfort levels.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 7, page 9).
2. Follow steps 1 through 7 under
Lighting
Instructions,
page 14.
3. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
4. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 9, under
Lighting Instructions
, page 14.
5. Replace front panel.
Control
3 Plaque
5 Plaque
Knob
Models
Models
