Desa installation manual Table of Contents

Page 2

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 a solid-fuel burning masonry or UL127 factory-built fire- place or in a listed ventless firebox enclosure. It is de- sign-certified for these installations in accordance with ANSI Z21.11.2. Exception: Do not install this appliance in a factory-built fireplace that includes instructions 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 5 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

Technical Service

24

Product Identification

4

Service Hints

24

Local Codes

5

Replacement Parts

24

Unpacking

5

Troubleshooting

25

Product Features

5

Optional Positioning of Thermostat Sensing Bulb...

29

Air For Combustion and Ventilation

5

Specifications

30

Installation

8

Accessories

31

Operating Heater

18

Parts Central

31

Inspecting Burners

22

Illustrated Parts Breakdown and Parts List

32

Cleaning and Maintenance

23

Warranty Information

Back Cover

2

www.desatech.com

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Image 2 Contents
24 Variable MANUALLY-CONTROLLED Models Patent PendingTable of Contents Safety Information Product Identification Unpacking Product FeaturesLocal Codes AIR for Combustion VentilationUnusually Tight Construction Providing Adequate VentilationDetermining FRESH-AIR Flow for Fireplace Location Determining if You Have a Confined or Unconfined SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Check GAS TypeFront Rear Log Size Side Wall CeilingMinimum Firebox Size Minimum Noncombustible Material ClearancesMantel Clearances Log SetFloor Clearances Log SetAssembly Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Connecting to GAS Supply Installation Items NeededPointing Down NaturalTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Checking GAS ConnectionsTest Pressures In Excess Of 1/2 Psig 3.5 kPa Pressure Testing Heater Gas Connections Installing Back LogInstallation Operating Heater What to do if YOU Smell GASLighting Instructions Slightly depress and turn control knob counTo Turn OFF GAS To Appliance Manual Lighting ProcedureVariable Control Operation STOP! Read the safety information, page 20, column Pilot Flame Pattern Inspecting BurnersThermostat Control Operation Burner Primary AIR HolesBurner Injector Holder and Pilot AIR Inlet Hole Cleaning MaintenanceODS/PILOT and Burner Replacement Parts Technical ServiceService Hints Troubleshooting Observed Problem Possible Cause RemedyODS/pilot lights but flame goes See Cleaning and Mainte Gas leak. See Warning Statement aboveOptional Positioning Thermostat Sensing Bulb For Masonry and FACTORY- Built Metal FireplaceSpecifications Equipment Shutoff Valve GA5010 AccessoriesParts Central Fireplace HoodIllustrated Parts Breakdown Parts List Variable MANUALLY-CONTROLLED Winchester OAK ModelsIllustrated Parts Breakdown THERMOSTATICALLY-CONTROLLED Royal English OAK Models Limited Warranty VENT-FREE GAS Fireplace Warranty InformationKeep this Warranty