Desa VFRMV18PB, VFRMV18NB, VFRMV24NB, VFRMV24PB installation manual Table of Contents

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WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency or the gas supplier.

WARNING: This appliance is for installation only in

asolid-fuel burning masonry or UL127 factory-built fireplace or in a listed ventless firebox enclosure. It is design-certified for these installations in accordance with ANSI Z21.11.2. Exception: Do not install this appli- ance in a factory-built fireplace that includes instruc- tions stating it has not been tested or should not be used with unvented gas logs.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provi- sions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 6 of this manual.

This appliance may be installed in an aftermarket,* per- manently located, manufactured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indi- cated on the rating plate. This appliance is not convert- ible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

Table of Contents

Safety Information

3

Cleaning and Maintenance.

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20

Product Identification

5

Wiring Diagram

21

Local Codes

5

Troubleshooting

22

Unpacking

5

Specifications

26

Optional Remote Control Accessories

5

Replacement Parts

26

Product Features

5

Service Hints

26

Air For Combustion and Ventilation

6

Technical Service

26

Installation

8

Accessories

26

Operating Heater

16

Illustrated Parts Breakdown and Parts List

28

Inspecting Burners

19

Warranty Information

Back Cover

www.desatech.com116412-01B

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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 Product Identification Optional Remote Control AccessoriesProduct Features Local CodesDetermining FRESH-AIR Flow Air For Combustion VentilationProviding Adequate Ventilation 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 Heater Assembly Installing Damper Clamp Accessory for Vented OperationInstalling Remote Control Accessory bracket 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 Propane/LPNatural Operating HeaterTo Turn OFF GAS To Appliance Shutting Off HeaterRemote Operation Manual Lighting ProcedureOptional Hand-Held On/Off Series Model HRC100Key Pad Lock Feature Safety FeaturesAuto Shutoff Feature Inspecting BurnersBurner Injector Holder Pilot Air Inlet Hole Cleaning MaintenanceBurner Flame Pattern Technical Service Cleaning MaintenanceWiring Diagram Propane/LPTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Maintenance,Operation Processes and logs curing Hours of operation Gas leak. See warning Checking Gas ConnectionsService Hints SpecificationsReplacement Parts 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.