®

VENT-FREE NATURAL GAS HEATER

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 19 shows a correct pilot flame pat- tern. Figure 20 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 20

•turn heater off (see To Turn Off Gas to Appliance, page 13)

•seeTroubleshooting, pages 15 through 17

Pilot Burner

Thermocouple

Figure 19 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

Figure 20 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 21 shows a correct burner flame pattern. Figure 22 shows an incorrect burner flame pattern.

If burner flame pattern is incorrect, as shown in Figure 22

•turn heater off (see To Turn Off Gas to Appliance, page 13)

•seeTroubleshooting, pages 15 through 17

Figure 21 - Correct Burner Flame Pattern

Figure 22 - Incorrect Burner Flame Pattern

CLEANING AND MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

ODS/PILOT AND BURNER ORIFICE

•Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.

CLEANING BURNER PILOT AIR INLET HOLE

We recommend that you clean the unit ev- ery 2,500 hours of operation or every three months.

We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recom- mend using compressed air no greater than 30 PSI. Your local computer store, hard- ware store, or home center may carry com- pressed air in a can. You can use a vacuum cleaner in the blow position. If using com- pressed air in a can, please follow the direc- tions on the can. If you don't follow direc- tions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2.Inspect burner, pilot for dust and dirt.

3.Blow air through the ports/slots and holes in the burner.

Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 23). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.

Pilot Air Inlet

Hole

Pilot Assembly

Figure 23 - Pilot Inlet Air Hole

CABINET

Air Passageways

•Use a vacuum cleaner or pressurized air to clean.

Exterior

•Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabi- net to remove dust.

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Vanguard Heating VN2550ITB, VN1800ITB installation manual Inspecting Burner, Cleaning and Maintenance
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VN2550ITB, VN1800ITB specifications

The Vanguard Heating VN1800ITB and VN2550ITB are high-efficiency heating solutions designed to cater to the diverse needs of residential and commercial spaces. These units exemplify advanced technology, offering reliable and consistent warmth while prioritizing energy efficiency.

The VN1800ITB model is engineered to deliver a powerful heating capacity of 18,000 BTUs, making it suitable for medium-sized rooms. It boasts a sleek design that allows for seamless integration into various decor styles. One of the standout features of the VN1800ITB is its innovative variable-speed blower, which not only enhances comfort by maintaining even temperatures but also reduces energy consumption. The blower adjusts its speed based on demand, resulting in quieter operation and improved efficiency.

In addition, the VN1800ITB includes a state-of-the-art digital thermostat that enables precise temperature control. Users can easily program heating schedules, leading to further savings on energy bills. The inclusion of a high-quality air filter improves indoor air quality by trapping dust and allergens, making it an ideal choice for households with allergy sufferers.

On the other hand, the VN2550ITB offers an impressive heating capacity of 25,000 BTUs, making it suitable for larger areas. This model incorporates similar advanced features as its counterpart, including the variable-speed blower and digital thermostat. However, it also features enhanced insulation, which minimizes heat loss and increases overall efficiency. The VN2550ITB is equipped with advanced safety features, including overheat protection and a flame rollout switch, ensuring the unit operates safely even in demanding conditions.

Both models utilize cutting-edge combustion technology that maximizes warmth while minimizing emissions. This commitment to environmental responsibility not only helps users meet local regulations but also contributes to a greener planet.

In conclusion, the Vanguard Heating VN1800ITB and VN2550ITB combine performance, efficiency, and safety features in aesthetically pleasing designs. These heating units provide dependable warmth, programmable convenience, and a commitment to indoor air quality, making them a smart investment for those seeking effective heating solutions.
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