OPERATION
Continued
for a maximum of 10 seconds while attempt- ing ignition. If heater does not light, release control knob and wait 30 seconds. Repeat step 5 to start heater. Note: Keep hands and face away from outlet (around top of shell) of heater while attempting to start heater. After ignition, hold control knob down for approximately 30 seconds. This activates the automatic control system.
6.If burner will not light after repeated tries, do not attempt to repair heater. Return heater to nearest authorized service center or call DESA Heating Productsʼ Technical Service at
7.When burner remains lit, you can turn the heater regulator knob clockwise to the desired heat set- ting. If burner goes out, turn off gas. Check fuel supply. If fuel supply is OK, restart heater.
TO STOP HEATER
1.Tightly close propane supply valve on propane tanks by turning clockwise. Wait 15 minutes for the heater to cool before handling heater.
2.Always remove the gas supply hose from the heater and the propane tank after each use.
TO RESTART HEATER
1.Wait five minutes after stopping heater.
2.Repeat steps under To Start Heater, page 4.
STORAGE
CAUTION:Disconnectheater from propane supply tank(s).
1.Do not store heater while attached to propane tank. Remove the gas supply hose from the propane tank by turning the fuel gas connector nut clockwise.
2.Store propane tank(s) in safe manner. Refer to Chapter 5 of Standard for Storage and Handling of Liquified Petroleum Gases, ANSI/NFPA 58 and/or CAN/CGA B149.2. Follow all local codes. Always store propane tanks outdoors. Never store propane tank in an enclosed area.
3.Place plastic cover caps over brass fittings on inlet connector and hose/regulator assembly.
4.Store in a dry, clean, and safe place.
MAINTENANCE
WARNING: Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns can occur.
1.Keep heater clean.
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 that must be corrected. 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 person.
INSPECTING BURNER
WARNING: Heater shell, top, and heated air from heater is very hot during operation. Gradually move in closer to heater to ob- serve flame color. Do not touch heater shell or top. Do not get too close to heated air from heater. Severe burns could occur.
To check for correct burner flame, look through the ventilation holes in the top of the heater to see the burner flame. The burner flame should be mostly blue with slight yellow coloring on the ends. If the burner flame is mostly yellow, the primary air openings on the burner tube under the heater base may be blocked (see Figure 4).
1.Stop heater (see To Stop Heater) and let cool.
2.Turn heater over to locate the primary air openings on the burner tube (see Figure 4). Remove any debris blocking the primary air openings.
Burner | Primary Air | |
Openings | ||
Tube | ||
|
Figure 4 - Bottom View of Heater
www.desatech.com | 5 |
