Desa VMH3000TNA installation manual Inspecting Burner, Pilot Flame Pattern, Burner Flame Pattern

Page 15

OWNER’S MANUAL

OPERATING

HEATER

Continued

THERMOSTAT

CONTROL OPERATION

The thermostatic control used on this heater differs from standard thermostats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room temperature. The thermostat adjusts the amount of gas flow to the burner. This increases or de- creases the burner flame height. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature.

The control knob can be set to any heat level between HI and LO.

Note: The thermostat sensing bulb mea- sures the temperature of air near the heater cabinet. This may not always agree with room temperature (depending on housing construction, installation loca- tion, room size, open air temperatures, etc.). Frequent use of your heater will let you determine your own comfort levels.

MANUAL LIGHTING

PROCEDURE

1.Remove front panel (see Figure 2, page 3).

2.Follow steps 1 through 5 under Light- ing Instructions, page 14.

3.With control knob pressed in, strike match. Hold match to pilot until pi- lot lights.

4.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8 under Lighting Instruc- tions, page 14.

5.Replace front panel.

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 23 shows a correct pilot flame pattern. Figure 24 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch- ing the thermocouple. This will cause the thermocouple to cool. When the thermo- couple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 24

•turn heater off (see To Turn Off Gas to Appliance, page 14)

•seeTroubleshooting, pages 16 through 18

Thermocouple

Pilot Burner

Figure 23 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

Figure 24 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than one inch above the log.

Note: When using the heater the first time, the flame will be yellow for approximately one hour until the log cures.

WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. If burner flame pat- tern shows yellow tipping, follow instructions, bottom of this page.

NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.

If burner flame pattern is incorrect, as shown in Figure 26

•turn heater off (see To Turn Off Gas to Appliance, page 14)

•seeTroubleshooting, pages 16 through 18

Top of Flame Even

With Top of Log

Figure 25 - Correct Burner Flame Pattern

Yellow Tipping

Figure 26 - Incorrect Burner Flame Pattern

107097

15

For more information, visit www.desatech.com

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualLocal Codes Safety InformationUnpacking AssemblyProduct Features Product IdentificationAssembling and Attaching Brass Trim Attaching Brass Front Trim to Front PanelConfined and Unconfined Space AIR for Combustion and VentilationProviding Adequate Ventilation Unusually Tight ConstructionAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Locating Heater InstallationInstallation Items Check GAS TypeInstallation Options Thermostat Sensing BulbMounting Heater to Wall Placing Heater On Mounting Bracket Installing Bottom Mounting ScrewsMounting Heater on Optional Hearth Base Mounting Heater to Optional Hearth BaseSecuring Hearth Base to Floor Connecting to GAS Supply Mounting Heater to Optional MantelAssembling Mantel Pressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections To Turn OFF GAS To Appliance For Your Safety Read Before LightingOperating Heater Lighting InstructionsInspecting Burner Pilot Flame PatternBurner Flame Pattern Observed Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at Cleaning and Maintenance Replacement PartsService Hints VMH3000TNA Illustrated Parts BreakdownKEY VMH3000TNA Description QTY Parts ListTechnical Service SpecificationsAccessories International Warranty Information

VMH3000TNA specifications

The Desa VMH3000TNA is an advanced heating unit designed for residential and commercial use, providing a reliable source of warmth during colder months. This versatile heater offers a blend of efficiency, modern technology, and user-friendly features, making it a popular choice for consumers seeking comfort and practicality.

One of the standout features of the VMH3000TNA is its high heat output capability. With an impressive heating output of up to 30,000 BTUs, this heater can efficiently warm large spaces, ensuring that any room or area is kept at a comfortable temperature. This makes it an ideal choice for homes, workshops, and even smaller commercial settings.

In terms of technology, the Desa VMH3000TNA is equipped with a reliable electronic ignition system, which eliminates the need for manual lighting and improves overall convenience. This feature is especially beneficial during cold weather, as it ensures quick and effortless operation. Additionally, the heater includes adjustable thermostatic controls, allowing users to set their desired temperature and maintain it with precision.

The heating unit operates using either natural gas or propane, providing flexibility depending on the availability of fuel sources. This adaptability is particularly advantageous for users in remote areas where one fuel type may be more accessible than the other. Furthermore, the VMH3000TNA boasts an energy-efficient design, which helps to reduce operational costs while minimizing environmental impact.

Safety is a critical aspect of the Desa VMH3000TNA's design. It incorporates an automatic shut-off feature, which activates in the event of a malfunction or airflow blockage. This ensures user safety and peace of mind, making it suitable for use in various settings, from homes to commercial spaces. Moreover, the heater is equipped with a durable casing and high-quality components, ensuring longevity and reliability.

Another notable characteristic of this unit is its sleek and contemporary design. The VMH3000TNA features a stylish appearance that can seamlessly fit into a range of interior decors, making it not just a functional appliance but also an aesthetic addition to any room.

In summary, the Desa VMH3000TNA stands out as a powerful, efficient, and user-friendly heating solution. With its high output, modern technologies, versatile fuel options, and safety features, it provides an excellent choice for those seeking dependable heating for their spaces. Whether for a home or a commercial setting, this heater promises to deliver warmth and comfort throughout the cold seasons.
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