Desa VFRMV18NB Cleaning Maintenance, Wiring Diagram, Technical Service, Propane/LP, Natural

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CLEANING AND

MAINTENANCE

Continued

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

2.Inspect burner, pilot and primary air inlet opening on injector holder for dust and dirt (see Figure 27).

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

4.Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint or pet hair with a soft cloth or vacuum cleaner nozzle.

5.Blow air into the primary air opening on the injector holder.

6.In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4.

Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot as- sembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 28). With the unit off, lightly blow air through the air inlet hole in the same direction as gas flow. You may blow through a drinking straw if compressed air is not available. This hole is accessible from the front of the unit through an L-shaped hole in the valve bracket (see Figure 29).

Ports

Injector

Slots

Holder

 

Burner

 

Tube Primary Air

 

Inlet Opening

Injector

(At Bottom)

 

Figure 27 - Injector Holder On Outlet

Burner Tube

Pilot Air Inlet Hole

Pilot Assembly

Propane/LP

Pilot Air Inlet Hole

Pilot Assembly

Natural

Figure 28 - Pilot Inlet Air Hole (Your pilot

may vary from pilots shown)

OFF PILOT ON

Access to

Pilot Air

Clean Pilot

Inlet Hole

Figure 29 - Access to Pilot Air Inlet Hole

Wiring Diagram

AUTO

OFF

ON

Thermopile

Technical Service

You may have further questions about installation, operation or troubleshooting. If so, contact DESA Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your heater ready.

You can also visit DESA technical services web site at www.desatech.com.

116412-01B

www.desatech.com

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Contents Ansi Z21.11.2b-2004 Ansi Z21.60-2003 Models VFRMV18NB, VFRMV18PB VFRMV24NB and VFRMV24PBTable of Contents Safety Information Safety Information Product Features Optional Remote Control AccessoriesProduct Identification Local CodesProviding Adequate Ventilation Air For Combustion VentilationDetermining FRESH-AIR Flow For Appliance LocationAIR for Combustion Ventilation Ventilation AIRVentilation Air From Inside Building Ventilation Air From Outdoors InstallationInstallation and Clearances for vent-free operation Check GAS TypeCeiling Minimum Noncombustible Material Clearances Safe InstallationFloor Clearances Mantel ClearancesInstalling Remote Control Accessory bracket Installing Damper Clamp Accessory for Vented OperationInstalling Heater Assembly Masonry Manufactured FireplaceFireplaceInstallation Items Needed Connecting to GAS SupplyChecking GAS Connections Pressure Testing Gas Supply Propane/LP FromPressure Testing Heater Gas Connections Piping System Test Pressures In Excess Of 1/2 Psig KPaTest Pressures Equal To or Less Than Psig 3.5 kPa For Your Safety Read Before Lighting Operating HeaterLighting Instructions To Turn OFF GAS To Appliance Operating HeaterPropane/LPNatural Shutting Off HeaterOptional Hand-Held Manual Lighting ProcedureRemote Operation On/Off Series Model HRC100Auto Shutoff Feature Safety FeaturesKey Pad Lock Feature Inspecting BurnersCleaning Maintenance Burner Flame PatternBurner Injector Holder Pilot Air Inlet Hole Wiring Diagram Cleaning MaintenanceTechnical Service Propane/LPObserved Problem Possible Cause Remedy TroubleshootingMaintenance, TroubleshootingOperation Processes and logs curing Hours of operation Checking Gas Connections Gas leak. See warningReplacement Parts SpecificationsService Hints AccessoriesAccessories Models VFRMV18NB, VFRMV18PB, VFRMV24NB Shown and VFRMV24PB Illustrated Parts BreakdownParts List 116412-01B 116412-01B Warranty Information Keep this WarrantyLimited Warranty VENT-FREE GAS LOG Heaters

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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