Ventilation, Operation, Storage, Maintenance

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.

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 propane tank may stop gas flow. If this happens, close propane supply valve and open again slowly.

6.Turn on/off switch to the ON position. Adjust thermostat to de- sired setting. If heater does not start, thermostat setting may be too low. Turn thermostat knob to higher position to start heater. Note: If heater does not start, turn on/off switch to the OFF po- sition. Wait ten seconds for safety control to reset, then try again.

Note: If heater still does not start after turning thermostat knob to a higher position, the high temperature switch may have opened during thermostat shut down. Allow high temperature switch to reset. This usually takes 10-15 minutes. Try starting heater again after switch resets.

VENTILATION	5
OPERATION	5
STORAGE
MAINTENANCE

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.

For more information, visit www.desatech.com