Inspecting Burners

Check pilot flame pattern and burner flame pat- terns often.

PILOT ASSEMBLY

The pilot assembly is factory preset for the proper flame height. Alterations may have occurred dur- ing shipping and handling. Call a qualified service person to readjust the pilot if necessary.

The position and pattern of the pilot flames in rela- tion to the sensing devices should be as shown in Figures 38 and 39 respectively.

The pilot flame may need adjustment in order for the thermocouple, thermopile and/or ignition system to sense the pilot flame.

If your pilot assembly does not meet these re- quirements:

•turn fireplace off (see To Turn Off Gas to Ap- pliance, page 19 or 20)

•see sections under Troubleshooting, page 25

Thermopile

3/8" to 1/2"

Pilot Burner

1/4"

Thermocouple

Piezo

Ignitor

Figure 38 - Pilot Assembly

(Millivolt Ignition System)

Pilot Sensor

Burner Rod

Piezo

Ignitor

Figure 39 - Pilot Assembly

Electronic Ignition System)

Burner Flame Patterns

Burner flames will be steady, not lifting or float- ing. Flame patterns will differ from unit to unit and will vary depending on installation type and weather conditions.

If vent configuration is installed incorrectly, flames will lift or “ghost”. This can be dangerous. Inspect flames after installation to ensure proper installa- tion and performance. Figure 40 shows a typical flame pattern.

If burner flame pattern differs from that de- scribed:

•turn fireplace off (see To Turn Off Gas to Ap- pliance, page 19 or 20)

•see Troubleshooting, page 25

Figure 40 - Typical Flame Pattern

Air Adjustment Setting

The main burner air shutter opening is factory set to the following:

Natural Gas - 1/8", Propane/LP Gas - 3/4"

The air shutter may require adjustment depending on altitude, venting condition, burner operation and general flame appearance.

If flames are lifting or sooting the shutter may require opening. If flames are too blue or improp- erly lighting the shutter may require closing. See Figure 41 for proper air adjustment.

IMPORTANT: Do not reduce air shutter opening any lower than designed minimum stop setting of 1/8".

Burner

Air

Tube

Shutter

Adjustment

1/8" Minimum

Screw

Air Opening

Figure 41 - Adjusting Air Setting

22

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117437-01B

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Desa (V)CB36P(E), (V)CB36N(E) Inspecting Burners, Pilot Assembly, Burner Flame Patterns, Air Adjustment Setting
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(V)CB36P(E), (V)CB36N(E) specifications

The Desa (V)CB36N(E) and (V)CB36P(E) represent a significant advancement in heating technology, offering efficient and reliable heating solutions for diverse residential needs. Both models showcase an amalgamation of modern design, energy efficiency, and user-friendly features, making them ideal for contemporary living spaces.

One of the standout features of the Desa (V)CB36N(E) and (V)CB36P(E) is their exceptional heating capacity. Designed to deliver a consistent and comfortable temperature, these units can effectively heat areas of various sizes, ensuring that even larger living rooms or open spaces maintain a cozy ambiance. The (V)CB36N(E) is particularly noted for its natural gas compatibility, while the (V)CB36P(E) offers flexibility with propane options, catering to varying user preferences and available fuel sources.

Both models are equipped with advanced technologies that enhance their performance and efficiency. The use of high-efficiency burners significantly boosts their output while minimizing fuel consumption. This strategic design not only prolongs the lifespan of the units but also contributes to reduced greenhouse gas emissions, aligning with the growing demand for environmentally friendly heating solutions.

In terms of safety, Desa places a strong emphasis on user protection. Each unit is equipped with a robust safety shut-off system that activates when certain operational parameters are not met, ensuring peace of mind for users. Additionally, the inclusion of a protective mesh screen on both models helps prevent accidental burns, particularly important in households with children or pets.

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In conclusion, the Desa (V)CB36N(E) and (V)CB36P(E) offer a perfect combination of performance, safety, and style. With their innovative technologies and user-friendly features, these heating solutions stand out in the market as reliable choices for those seeking efficient home heating options.
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