Desa VFRMV18PB, VFRMV18NB, VFRMV24NB, VFRMV24PB Cleaning Maintenance, Burner Flame Pattern

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Inspecting Burners

Continued

BURNER FLAME PATTERN

Figure 25 shows correct burner flame pattern.

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 burner flame pattern is incorrect, as shown in Figure 26

•turn heater off (see To Turn Off Gas to Appli- ance, page 17)

•see Troubleshooting, page 22

The flames from the burner travel horizontally through the log set and emerge at the middle and rear of the set against the back logs.

The flames are blue off the burner and as they progress through the log set, change to a light yellow color, yellow decorative flames are visible as the flames exit the log set.

The base of the log set and the underside of the top logs glow red. Natural gas models will burn with more blue flame, while propane gas model will burn with bright yellow flame.

Blue and Bright

Yellow Flames

Figure 25 - Correct Burner Flame Pattern

Darker Orange

Flames

Figure 26 - Incorrect Burner Flame

Pattern

Cleaning and

Maintenance

WARNING: Turn off heater and let cool before cleaning.

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

WARNING: Failure to keep the primary air openings of the burner clean may result in soot- ing and property damage.

Burner Injector Holder and

Pilot Air Inlet Hole

The primary air inlet openings allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint and pet hair. Clean these air inlet openings prior to each heating season. Blocked air openings will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person.

We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store or home center may carry compressed 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 directions on the can. If you don't follow directions on the can, you could damage the pilot assembly.

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Contents Models VFRMV18NB, VFRMV18PB VFRMV24NB and VFRMV24PB Ansi Z21.11.2b-2004 Ansi Z21.60-2003Table of Contents Safety Information Safety Information Optional Remote Control Accessories Product FeaturesProduct Identification Local CodesAir For Combustion Ventilation Providing Adequate VentilationDetermining FRESH-AIR Flow For Appliance LocationVentilation Air From Inside Building AIR for Combustion VentilationVentilation AIR Installation Ventilation Air From OutdoorsCeiling Installation and Clearances for vent-free operationCheck GAS Type Safe Installation Minimum Noncombustible Material ClearancesMantel Clearances Floor ClearancesInstalling Damper Clamp Accessory for Vented Operation Installing Remote Control Accessory bracketInstalling Heater Assembly Masonry Manufactured FireplaceFireplaceConnecting to GAS Supply Installation Items NeededPressure Testing Gas Supply Propane/LP From Checking GAS ConnectionsTest Pressures Equal To or Less Than Psig 3.5 kPa Pressure Testing Heater Gas ConnectionsPiping System Test Pressures In Excess Of 1/2 Psig KPa Lighting Instructions For Your Safety Read Before LightingOperating Heater Operating Heater To Turn OFF GAS To AppliancePropane/LPNatural Shutting Off HeaterManual Lighting Procedure Optional Hand-HeldRemote Operation On/Off Series Model HRC100Safety Features Auto Shutoff FeatureKey Pad Lock Feature Inspecting BurnersBurner Injector Holder Pilot Air Inlet Hole Cleaning MaintenanceBurner Flame Pattern Cleaning Maintenance Wiring DiagramTechnical Service Propane/LPTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Maintenance,Operation Processes and logs curing Hours of operation Gas leak. See warning Checking Gas ConnectionsSpecifications Replacement PartsService Hints AccessoriesAccessories Illustrated Parts Breakdown Models VFRMV18NB, VFRMV18PB, VFRMV24NB Shown and VFRMV24PBParts List 116412-01B 116412-01B Limited Warranty VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty

VFRMV18PB, VFRMV18NB, VFRMV24NB, VFRMV24PB specifications

The Desa VFRMV series is a sophisticated line of heating solutions known for its efficiency and modern design. The models in this series include the VFRMV24NB, VFRMV24PB, VFRMV18NB, and VFRMV18PB, each sharing a commitment to provide superior comfort and versatility in various living spaces.

One of the most notable features of the VFRMV series is its advanced heating technology. These units are equipped with a powerful burner system designed to maximize heat output while minimizing energy consumption. This makes the units not only environmentally friendly but also cost-effective, as users can enjoy warm indoor spaces without incurring high energy bills. The gas burners achieve a high thermal efficiency, ensuring that a significant amount of heat is delivered into the room promptly.

The VFRMV series is designed with customer convenience in mind. The models feature easy-to-read digital displays that allow users to adjust temperatures and settings effortlessly. These displays are intuitive, providing feedback on heating levels, operational status, and timer functions, enhancing the user experience. Furthermore, the inclusion of a remote control option allows homeowners to manage the heating from the comfort of their sitting area.

In terms of safety, the VFRMV series implements several key features. Each unit is equipped with an oxygen depletion sensor and a safety shut-off system. This ensures that the unit operates safely within its designated space, automatically shutting down if carbon monoxide levels rise or oxygen levels drop beyond safe limits. This commitment to safety provides peace of mind for households, making it a suitable choice for a wide range of environments.

Aesthetically, the VFRMV24NB and VFRMV24PB models feature a sleek design, with the "NB" models showcasing a bold black finish, while the "PB" variants offer a more classic propane-blue coloration. The smaller VFRMV18 series similarly combines elegance with functionality, ensuring that they can seamlessly blend into any home décor.

In summary, the Desa VFRMV24NB, VFRMV24PB, VFRMV18NB, and VFRMV18PB models exemplify modern heating solutions. With their advanced burner technology, user-friendly features, stringent safety measures, and stylish designs, they cater to contemporary requirements for effective indoor heating. Whether for residential or commercial use, the VFRMV series promises reliability and comfort all year round.
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