Proper Burner Flame, Natural GAS | Louisville Tin and Stove HEDV404

PROPER BURNER FLAME

The burner flame may be observed by raising the sight glass cover. A proper flame will have a dark blue inner mantle, with a lighter blue outer mantle that extends from the burner into the heat exchanger tube, (see Figure 12). There is no primary air adjustment on the burner, and proper flame is assured since the correct manifold pressure and orificing has been done at the factory.

TO REMOVE MAIN BURNER FOR INSPEC-

TION AND CLEANING

1.Turn off all electrical supply to heater.

2.Turn off gas supply.

3.Remove front panel.

4.Unplug wire to ignitor and sensor. (See Fig. 13.)

5.Disconnect vacuum hose from burner box.

6.Remove screws holding burner box top to burner box. (See Figure 13.)

7.Remove burner plate and burner box top. Take care not to contact, or strain ignitor in any way as it is extremely fragile. (See Figure 13.)

8.Remove 2 nuts holding burner bracket. (See Figure 13).

9.Slide burners toward heat exchanger and lift up from rear and back. (See Figure 13).

10.Clean or replace as needed.

11.Reinstall by reversing Steps 9 - 1.

BURNER ORIFICE

This appliance is orificed at the factory for elevations up to 2,000 ft. If installed above 2,000 ft., the BTU input must be reduced 4% per 1,000 ft. See the following orifice chart for the proper orifice for a specific elevation.

SPECIFIC ELEVATIONS

MODEL	0 to	2,000’	4,000’	6,000’	8,000’ -
NO.	2,000’	4,000’	6,000’	8,000’	10,000’

NATURAL GAS

HEDV403	4 5	4 7	4 8	4 9	5 0
		L.P. GAS
HEDV404	5 5	5 5	5 6	5 6	5 7

Primary Flame

Burner

Secondary Flame

Heat Exchanger Tube

FIGURE 12

NOTE: THE FURNACE AND ALL COMPO- NENTS MUST BE INSPECTED AT LEAST ANNUALLY BY A QUALIFIED SERVICE PER- SON. THIS SHOULD INCLUDE THE BURNER, HEAT EXCHANGER, AND VENT SYSTEM. BE SURE THAT THE FLOW OF COMBUSTION AND VENTILATION AIR ARE NOT OBSTRUCTED AND THAT ALL HOSES ARE UNDAMAGED, AND ALL CLAMPS ARE SECURELY TIGHTENTED.

	Valve
		Burner
		Box
		Top
Burner	Burner	Mani-
Box		Mani-
Box		fold
Plate		fold
Plate
Sensor	Nut
	Burner Bracket
	Ignitor	Vacuum
		Hose

FIGURE 13

NOTE: If this heater is installed above an elevation of 8,000 feet, the factory installed pressure switch may not function properly. If you experience a problem with the pressure switch, contact a qualified service agency to replace the factory installed pressure switch with a high altitude pressure switch P/N 72521. To order see your local Cozy dealer or contact the factory.

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HEDV403, HEDV404 specifications

The Louisville Tin and Stove HEDV403 and HEDV404 are innovative heating solutions designed to combine efficiency, style, and versatility. Both models are part of Louisville Tin and Stove's commitment to quality craftsmanship and modern heating technologies. They offer optimal performance for various home settings, catering to the needs of both traditional and contemporary aesthetics.

The HEDV403 model is a prominent choice for those seeking a dependable heating appliance. One of its main features is a robust heating capacity that ensures effective warmth across larger spaces. It utilizes advanced convection heating technology, which allows for even heat distribution while minimizing energy consumption. The sleek design includes a user-friendly digital thermostat, enabling users to easily set and maintain their desired temperature. An integrated fan also enhances airflow, further optimizing heating efficiency.

On the other hand, the HEDV404 model builds on the success of the HEDV403 by introducing additional smart features, making it an ideal choice for tech-savvy homeowners. It boasts Wi-Fi connectivity, allowing users to control and monitor the unit remotely through a smartphone application. This feature is especially beneficial for those who desire convenience and energy management while on the go. Moreover, the HEDV404 includes a more advanced filtration system that helps maintain air quality by removing dust and allergens, promoting a healthier indoor environment.

Both models are constructed with high-quality materials, ensuring durability and longevity. Their stylish appearances make them suitable for a diverse range of interior designs, allowing homeowners to integrate them seamlessly into their living spaces. The contemporary aesthetic is accentuated by sleek lines and modern finishes, appealing to individuals who appreciate design as much as functionality.

Safety is a paramount consideration in both models, which are equipped with multiple safety features such as overheat protection, tip-over switch, and sturdy construction. These attributes offer peace of mind for users, particularly in homes with children or pets.

In summary, the Louisville Tin and Stove HEDV403 and HEDV404 represent the perfect fusion of efficiency, technology, and design. Whether you prefer the straightforward functionality of the HEDV403 or the advanced features of the HEDV404, both models ensure a cozy and inviting atmosphere in any home. Investing in either of these units guarantees not only warmth but also a stylish addition to your living space.

Louisville Tin and Stove HEDV404 Proper Burner Flame, Burner Orifice, Specific Elevations, Gas

Models: HEDV403 HEDV404