Cleaning and Maintenance, Troubleshooting

OWNER’S MANUAL

OPERATING

APPLIANCE

Continued

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Appliance

1.Turn control knob clockwise to the PILOT position.

2.Press in and turn control clockwise to the OFF position.

Shutting Off Burner Only (pilot stays lit)

Turn control knob clockwise to the PILOT position.

CLEANING AND MAINTENANCE

•Keep the area around the log set clean and clear of debris.

•Occasionally, you may use a soft bristle brush to clean logs.

•Once every year a qualified agency or certified chimney sweep should exam- ine and clean the venting system of the fireplace.

TROUBLESHOOTING

Note: For additional help, visit DESA International’s Technical Service web site at www.desatech.com.

Note: All troubleshooting items are listed in order of operation.

WARNING: Turn off log set and let cool before servicing. Only a qualified service person should service and repair log set.

OBSERVED PROBLEM	POSSIBLE CAUSE		REMEDY
Log set is smoking/sooting excessively	1.	Poor fuel quality	1.	Contact local natural or propane/LP gas
(Note: It is natural and unavoidable for				company
vented gas log sets to produce moderate	2.	Fireplace venting system not drafting	2.	Adjust damper wide open and/or have
levels of carbon (soot) where flames		properly		fireplace and venting professionally
contact the logs. This is especially true				cleaned and checked
with propane/LP gas.)	3.	Excessive flame impingement or	3.	Separate the logs to allow more flame
		blockage		passage
	4.	Improper fuel/air mixture	4.	Remove any foreign items from the
				flame pattern and/or check for proper
				orifice sizing
	5.	Excessive gas supply/pressure	5.	Preheat flue in very cold weather

Burner is excessively noisy

(Note: The movement and combustion of gas will create low, unavoidable levels of noise.)

1.Passage of air/gas across irregular sur- faces

1.Relieve any tight bends or kinks in gas supply line

Burner flame is too low or too high	1.	Incorrect gas supply or pressure	1.	Check for proper gas supply pressure
	2.	Blocked burner orifice or burner mani-	2.	Free burner orifice and manifold ports
		fold ports		of any burrs, paint, or other blockage
	3.	Improper burner orifice size	3.	Verify proper burner orifice sizing (see
				Figure 4, page 7)

www.desatech.com

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901267

VVMR18, VVMR24 specifications

Desa VVMR18 and VVMR24 are advanced solutions designed to enhance the efficiency of commercial and industrial heating systems. These models represent a significant leap in technology within the realm of industrial heaters, emphasizing energy efficiency, reliability, and user-friendly operation.

One of the main features of both the VVMR18 and VVMR24 models is their highly efficient heat exchange technology. The design incorporates a compact heat exchanger that maximizes thermal efficiency while minimizing energy waste. This means that users can not only save on operational costs but also reduce their carbon footprint, aligning with global sustainability goals.

The VVMR series utilizes advanced control systems that allow for precise temperature regulation and monitoring. These control systems are equipped with intelligent algorithms that adapt to varying load demands and external conditions, ensuring optimal performance at all times. This feature is particularly beneficial in environments where temperature fluctuations are common, providing stable heating without the need for constant manual adjustment.

In terms of construction, both models boast robust builds, designed to withstand the rigors of industrial use. The use of high-quality materials enhances durability and longevity, reducing maintenance requirements and extending the lifespan of the units. Additionally, their modular design facilitates easy installation and servicing, which is critical in industrial settings where downtime can be costly.

Safety is another critical characteristic of the VVMR18 and VVMR24 models. They come equipped with multiple safety features, including over-temperature protection and pressure relief systems, ensuring reliable operation without compromising on safety. These features are essential in industrial environments where safety regulations are paramount.

In conclusion, the Desa VVMR18 and VVMR24 offer a blend of efficiency, advanced technology, and robust design. Their intelligent control systems, efficient heat exchange technology, and focus on safety make them ideal choices for businesses seeking reliable heating solutions. Investing in these models not only supports operational efficiency but also promotes a commitment to environmental responsibility, making them a wise choice for modern industrial applications.