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111695-01A
5
5
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Flame Inside
Burner Tube
(makes roaring
noise)
Yellow Flame
Blue
Flame
7. After ignition, hold control knob down for about 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 MED 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 available, restart heater beginning at step #1,
page 4.
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.
Figure 6 - Incorrect Flame Pattern During Flashback
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 inlet connector
and hose/regulator assembly.
3. Store in a dry, clean, and safe place.
STORAGE
CAUTION: Disconnect heater from propane sup-
ply tank(s).
OPERATION
Continued
Slight Yellow
Coloring on
Flame Ends
Blue
Flame
Burner
Tube
Figure 5 - Correct Flame Pattern at High Position
OPERATION
STORAGE
TO STOP HEATER
1. Tightly close propane supply valve on propane tank(s). Allow
heater to burn remaining fuel in hose.
2. Shut off burner. Do this by pushing in the control knob and
turning clockwise to the OFF position.
TO RESTART HEATER
1. Wait five minutes after stopping heater.
2. Restart heater by following steps under To Start Heater, page 4.