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104781-01D
5
5
For more information, visit www.desatech.com
For more information, visit www.desatech.com
FLAME PATTERNS
Figure 5 shows a correct flame pattern. The burner flame is mostly
blue with a slight yellow coloring on the ends.
Figure 6 shows an incorrect flame pattern. The flame is mostly
yellow. The incorrect flame pattern results from low gas pressure or
from flashback.
CAUTION: Running heater below specified input
rating may cause flashback. During flashback, the
burner flame is mostly yellow. The flame will burn
inside the burner tube, causing a roaring noise. If
flashback occurs, turn heater off. After burner tube
cools, restart the heater.
7. After iginition, hold control knob down for approximately 30
seconds. This activates the automatic control system.
8. When burner remains lit, set heater at the desired heat level by
slightly depressing the control knob and turning it counterclock-
wise to the Medium or High settings (see Figure 4, page 4).
9. If burner goes out, turn off gas. Slightly depress and turn con-
trol knob fully clockwise to “OFF”. Check fuel supply. If ad-
equate fuel is availavle, restart heater beginning at step #1,
page 4.
OPERATION
Continued
OPERATION
To Start Heater (Cont.)
Flame Patterns
To Stop Heater
To Restart Heater
STORAGE
Slight Yellow
Coloring on
Flame Ends
Blue
Flame
Correct Flame
Pattern
Burner
Tube
Flame Inside
Burner Tube
(makes roaring
noise)
Incorrect Flame
Pattern–Flashback
Yellow Flame
Blue
Flame
Figure 5 - Normal Flame Pattern at High Position
Figure 6 - Flame Pattern during Flashback
TO STOP HEATER
1. Tightly close propane supply valve on propane tank(s). Allow
heater to burn remaining fuel in hose.
2. Shut off main burner valve. Do this by slightly depressing con-
trol knob and turning fully clockwise to “OFF”.
TO RESTART HEATER
1. Wait five minutes after stopping heater.
2. Repeat steps under To Start Heater, page 4.
STORAGE
CAUTION: Disconnect heater from propane sup-
ply tank(s).
1. Store propane tank(s) in safe manner. Refer to Chapter 5 of
Standard for Storage and Handling of Liquefied Petroleum
Gases, ANSI/NFPA 58 and/or CAN/CGA B149.2. Follow all
local codes. Always store propane tanks outdoors.
2. Place plastic cover caps over brass fittings on valve inlet and
hose/regulator assembly.
3. Store in a dry, clean, and safe place.