Desa 125-RN owner manual Product Identification, Unpacking, Theory of Operation

SAFETY INFORMATION

Continued

7.Keep appliance area clear and free from com- bustible materials, gasoline, paint thinner and other flammable vapors and liquids. Dust is combustible. Do not use heater in areas with high dust content.

8.Minimum heater clearances from com- bustibles:

Sides	Top
1.54 m (5 ft)	1.22 m (4 ft)

9.Keep heater at least 6.0 m (20 ft) from propane tank(s).

10.Keep propane tank(s) below 38° C (100° F).

11.Check heater for damage before each use. Do not use a damaged heater.

12.Check hose before each use of heater. If highly worn or cut, replace with hose specified by the manufacturer before using heater.

13.Locate heater on stable and level surface if heater is hot or operating.

14.Not intended for use on finished floors.

15.Never block air inlet (bottom of combustion chamber) or air outlet (glowing combustion chamber) of heater.

16.Keep heater away from strong drafts, wind, water spray, rain or dripping water.

17.Do not leave heater unattended.

18.Keep children and animals away from heater.

19.Never move, handle or service a hot or operat- ing heater. Severe burns may result. Wait 15 minutes after turning heater off.

20.To prevent injury, wear gloves when handling heater.

21.Never attach duct work to heater.

22.Do not alter heater. Keep heater in its original state.

23.Do not use heater if altered.

24.Turn off gas supply to heater when not in use.

25.Use only original replacement parts. This heater must use design-specific parts. Do not substitute or use generic parts. Improper replacement parts could cause serious or fatal injuries.

PRODUCT

IDENTIFICATION

Top

Protective

Screen

Combustion

Chamber

Cover

Lighting

Port

Control knob

Figure 1 - Product Identification

UNPACKING

1.Remove all packing items applied to heater for shipment. Keep plastic cover caps (attached to valve inlet and hose/regulator assembly) for storage.

2.Remove all items from carton.

3.Check all items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

THEORY OF OPERATION

The Fuel System: For propane units, the hose/ regulator assembly attaches to the propane gas supply. For natural gas units, the gas supply at- taches to the heater through user supplied hose or pipe. This provides fuel to the heater.

The Ignition System: The piezo ignitor lights the burner fuel supply.

The Automatic Control System: This system causes the heater to shut down if the flame goes out.

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