Desa Air Conditioner - Manual (Page 6)

www.desatech.com 113893-01B 6
6. Press and hold in fuel valve button. Heater
should ignite within a few seconds.
Note: If heater fails to ignite, hose may have
air in it. If so, keep fuel valve button pressed
and wait 20 seconds. Release automatic
control valve button and wait 20 seconds for
unburned fuel to exit heater. Repeat step 7.
7. After heater ignites, wait 30 seconds. This ac-
tivates the automatic control system. Release
the control knob.
8. When burner remains lit, set heater at the
desired heat level by turning the variable Btu
control knob counterclockwise. If burner goes
out, turn off gas. Turn variable Btu control
knob fully clockwise to the lowest position.
Check fuel supply. If adequate fuel is avail-
able, restart heater beginning at step 1.
TO STOP HEATER
1. Tightly close propane supply valve on propane
tank(s).
2. Wait a few seconds. Heater will burn gas left
in supply hoses.
3. Unplug heater.
STORAGE
CAUTION: Disconnect heater
from propane supply tank(s).
1. Store propane tank(s) in safe manner. See
Chapter 5 of Standard for Storage and Han-
dling of Liquefied Petroleum Gases, ANSI/
NFPA 58 and the Propane Installation Code
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 dry, clean and safe place. Do not
store hose/regulator assembly inside heater
combustion chamber.
4. When taking heater out of storage, always
check inside of heater. Insects and small
animals may place foreign objects in heater.
Keep inside of heater free from combustible
and foreign objects.
OPERATION
Continued
MAINTENANCE
WARNINGS
• Never service heater while it
is plugged in, connected to
propane supply, operating or
hot. Severe burns and electri-
cal shock can occur.
• Keep heater clear and free
from combustible materials,
gasoline and other flammable
vapors and liquids.
• Do not block the flow of com-
bustion or ventilation air.
1. Keep heater clean. Clean heater annually or as
needed to remove dust and debris. If heater is
dirty or dusty, clean heater with a damp cloth.
Use household cleaners on difficult spots.
2. Inspect heater before each use. Check connec-
tions for leaks. Apply mixture of liquid soap
and water to connections. Bubbles forming
show a leak. Correct all leaks at once.
3. Inspect hose/regulator assembly before each
use. If hose is highly worn or cut, replace with
hose specified by manufacturer.
4. Have heater inspected yearly by a qualified
service agency.
5. Keep inside of heater free from combustible
and foreign objects. Remove motor and other
internal parts if needed to clean inside of
heater (see Service Procedures, page 8).
6. Clean fan blades each season or as needed (see
Fan, page 8).