103014-01L
5
5
For more information, visit www.desatech.com
For more information, visit www.desatech.com
VENTILATION
WARNING: Follow the minimum fresh, outside air
ventilation requirements. If proper fresh, outside air
ventilation is not provided, carbon monoxide poison-
ing can occur. Provide proper fresh, outside air ven-
tilation before running heater.
Provide a fresh air opening of at least three square feet for each
100,000 Btu/Hr rating. Provide extra fresh air if more heaters are
being used.
VENTILATION
OPERATION
STORAGE
MAINTENANCE
OPERATION
WARNING: Review and understand the warnings
in the
Safety Information section, page 2. They are
needed to safely operate this heater. Follow all local
codes when using this heater.
TO START HEATER
1.
Follow all installation, ventilation and safety information.
2.
Locate heater on stable and level surface. Make sure strong
drafts do not blow into front or rear of heater.
3.
Plug power cord of heater into a three-prong, grounded exten-
sion cord. Extension cord must be at least six feet long. Exten-
sion cord must be UL listed.
Extension Cord Size Requirement
Up to 50 feet long, use 18 AWG rated cord.
51 to 100 feet long, use 16 AWG rated cord.
101 to 200 feet long, use 14 AWG rated cord.
4.
Plug extension cord into a 120 volt/60 hertz, three-hole,
grounded outlet.
5.
Open propane supply valve on propane tank(s) slowly.
Note:
If not opened slowly, excess-flow check valve on pro-
pane tank may stop gas flow. If this happens, close propane
supply valve and open again slowly.
6.
Turn thermostat control knob fully counterclockwise to the
"COOLER" position. Turn ON/OFF switch to the ON posi-
tion. Turn thermostat control knob slowly clockwise until elec-
tric motor and fan begin to run. Heater will start in approxi-
mately 3 seconds. Adjust thermostat control knob to WARMER
or COOLER setting as needed.
Note:
If heater does not start after 3 seconds, the ignition con-
trol will automatically attempt to start heater one time. If heater
fails to start on this attempt, the safety control will "lock out"
and no further automatic restarts will be attempted. This could
occur if air remains in fuel line. If heater fails to start on this
attempt, turn ON/OFF switch to OFF position. Wait ten sec-
onds for safety control to reset, then turn ON/OFF switch back
to ON position and try to start heater again.
7.
Thermostat Operation Only:
During normal thermostat op-
eration, heater will cycle off when air temperature rises to ther-
mostat setting. When air temperature drops sufficiently below
thermostat setting, the electric motor and fan will begin to run.
After 15 to 60 seconds, heater burner should automatically
ignite and provide heat to maintain temperature setting.
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.
Turn on/off switch to the OFF position.
4.
Unplug heater.
STORAGE
CAUTION: Disconnect heater from propane sup-
ply tank(s).
1.
Store propane tank(s) in safe manner. See Chapter 5 of Stan-
dard for Storage and Handling of Liquefied Petroleum Gases,
ANSI/NFPA 58 and/or CAN/CGA B149.2. Follow all local codes.
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 for-
eign objects.
MAINTENANCE
WARNING: Never service heater while it is plugged
in, connected to propane supply, operating, or hot.
Severe burns and electrical shock can occur.
1.
Keep heater clean. Clean heater annually or as needed to re-
move dust and debris. If heater is dirty or dusty, clean heater
with a damp cloth.
2.
Inspect heater before each use. Check connections 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.
4.
Have heater inspected yearly by a qualified service agency.
5.
Keep inside of heater free from combustible and foreign objects.
