(Natural Gas)

22

INSPECTING BURNERS

Pilot Flame Pattern Burner Flame Patterns

INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 37 shows a correct pilot flame pattern. Figure 38 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 38

turn heater off (see To Turn Off Gas to Appliance, page 18 [Ther- mostat-Controlled Models] or page 20 [Remote-Ready Models])

see Troubleshooting, pages 24 through 26

Note: The pilot flame on natural gas units will have a slight curve, but the flame should be blue and have no yellow or orange color.

Pilot Burner Thermocouple

Pilot Burner

 

Thermocouple

(Natural Gas)

(Propane/LP Gas)

Figure 37 - Correct Pilot Flame Pattern (Your pilot may vary from

pilots shown)

Thermocouple

Pilot Burner

Pilot Burner

 

Thermocouple (Propane/LP Gas)

Figure 38 - Incorrect Pilot Flame Pattern (Your pilot may vary from pilots shown)

BURNER FLAME PATTERNS

Figure39 showscorrectfrontand/ormiddleburnerflamepatterns.Figure 40 shows incorrect front and/or middle burner flame patterns. The incorrect burner flame patterns show yellow tipping at top of blue flame.

WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If burner flame patterns show yellow tipping, follow in- structions below. Yellow flame on rear burner is normal.

NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by heater, causing brief patches of orange flame.

If front and/or middle burner flame patterns are incorrect, as shown in Figure 40

turn heater off (see To Turn Off Gas to Appliance, page 18 [Ther- mostat-Controlled Models] or page 20 [Remote-Ready Models])

see Troubleshooting, pages 24 through 26

Correct Front and Middle Burner Flame Patterns for VRL24NT/PT,

VRL24NR/PR, VRL30NT/PT and VRL30NR/PR Models

Correct Front and Middle Burner Flame Patterns for

CSG3924NT/PT and CSG3924NR/PR Models

Correct Middle Burner Flame Pattern for

CTB3924NT/PT and CTB3924NR/PR Models

Figure 39 - Correct Burner Flame Patterns

Yellow Tipping At

Top of Blue Flame

Incorrect Front and Middle Burner Flame Patterns for VRL24NT/PT,

VRL24NR/PR, VRL30NT/PT and VRL30NR/PR Models

Yellow Tipping At

Top of Blue Flame

Incorrect Front and Middle Burner Flame Patterns for

CSG3924NT/PT and CSG3924NR/PR Models

Yellow Tipping At

Top of Blue Flame

Incorrect Middle Burner Flame Pattern for

CTB3924NT/PT and CTB3924NR/PR Models

Figure 40 - Incorrect Burner Flame Patterns (VRL Models only)

For..com

110021-01C

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Desa VRL24PR, RL24NR, CTB3924NT, CSG3924NR, CTB3924NR, VRL30PR Inspecting Burners, Pilot Flame Pattern, Burner Flame Patterns

CSG3924NR, CTB3924NR, VRL24PR, VRL30NR, RL24NR specifications

Desa VRL30NR, CSG3924PR, RL24NR, CSG3924PT, and CTB3924NT are advanced heating units developed by Desa, a brand recognized for its innovation in heating technologies. These models cater to a variety of consumer needs, offering efficient, reliable, and cost-effective heating solutions for residential and commercial applications.

The Desa VRL30NR is a powerful model known for its exceptional performance and efficiency. It features an intuitive digital thermostat for precise temperature control, ensuring optimal comfort. The unit is designed with an advanced airflow system that maximizes heat distribution throughout the space, making it ideal for larger rooms or open-concept spaces. The VRL30NR is also equipped with safety features such as an automatic shut-off mechanism that activates in case of overheating or tip-over, providing added peace of mind.

In contrast, the CSG3924PR and CSG3924PT models offer versatility with a sleek design and robust functionality. Both models come with an adjustable flame height feature, allowing users to customize their heating experience based on preference and room size. These units are designed for easy installation and operation, often incorporating wall-mounted options to save floor space. The incorporation of energy-efficient technologies ensures that they consume less power while still delivering powerful heating output, making them an environmentally friendly choice.

The RL24NR model stands out with its compact design, making it suitable for smaller spaces. This model prioritizes aesthetics without compromising on performance. It is equipped with a quiet operation mode, making it perfect for bedrooms or offices where noise levels need to be minimal. The RL24NR also boasts a quick heat-up time, providing instant warmth when needed.

Lastly, the CTB3924NT model offers the best in technology and features. It includes a built-in air purification system that not only heats but also improves indoor air quality. This model is equipped with Wi-Fi connectivity, allowing users to control their heating remotely via a smartphone app. Its smart technology integrates with home automation systems, enhancing convenience and user experience.

Overall, each of these Desa models provides reliable heating solutions tailored to diverse needs and spaces. Their combined focus on efficiency, safety, and user-friendly features makes them standout options in the competitive heating market.