Maintenance, Storage, To Stop Heater

Dayton Operating Instructions and Parts Manual

Model 4E769B

Operation (Continued)

NOTE: If not opened slowly, excess-ﬂow check valve on propane tank will stop gas ﬂow. If this happens, close propane supply valve and open again slowly.

Be sure motor and fan are running

before pushing in automatic control valve button. Flames could flash outside heater if motor and fan are not running.

6.Push in and hold automatic control valve button (See Figure 6). Push piezo ignitor button (See Figure 6). You may need to push piezo ignitor button 3-8 times until the burner lights. When burner lights, keep automatic control valve button pushed in. Release button after 30 seconds.

NOTE: If heater is unplugged or power outage occurs while heater is running, the thermal limit device will stop fuel flow. A few seconds occur before the thermal limit device activates. During this short time, flames may appear outside the heater. This is normal. The flames will go out when thermal limit device activates.

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 hose.

3.Unplug heater.

TO RESTART HEATER

1.Wait five minutes after stopping heater.

2.Repeat steps under To Start Heater, page 6.

Maintenance

Never attempt to service heater

while it is connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

Keep heater clear and free from

combustible materials, gasoline, and other flammable vapors and liquids.

Do not block the flow of combus-

tion 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.

Piezo Ignitor

Button

Automatic

Control Valve

Button

Figure 6 - Automatic Control Valve Button and Piezo Ignitor Button

Storage

Disconnect heater from propane

supply tank(s).

1.Store propane tank(s) in safe manner. See Chapter 5 of Standard for Storage and Handling of Lique- ﬁed Petroleum Gases, ANSI/NFPA 58. 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.

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 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.

Remove motor and other internal parts

if need to clean inside of heater (See

Service Procedures, page 8).

6. Clean fan blades each season or as

needed (See Fan, page 8).

NOTE: If heater fails to ignite, hose may have air in it. If so, keep automatic control valve button pressed and wait 20 seconds. Release automatic control valve button and wait 20 seconds for unburned fuel to exit heater. Repeat step 6.

4.When taking heater out of storage, always check inside of heater. Insects and small animals may place foreign objects in heater. Remove motor and other internal parts if needed to remove foreign objects (See Service Procedures, page 8).

Version B - For Reduction

G016.J

Desa 4E769B operating instructions Maintenance, Storage, To Stop Heater, To Restart Heater

Models: 4E769B