Desa CDR3924NT 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 an 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. For unmarked factory-built fireplaces, contact fireplace manufacturer if unsure of this application.

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

Cleaning and Maintenance

................................

19

Local Codes

4

Troubleshooting

20

Product Identification

5

Optional Positioning of Thermostat Sensing Bulb..

24

Unpacking

5

Specifications

25

Product Features

5

Replacement Parts

25

Air For Combustion and Ventilation

5

Service Hints

25

Installation

8

Accessories

25

Operating Heater

16

Illustrated Parts Breakdown and Parts List

26

Inspecting Burners

18

Warranty Information

Back Cover

Technical Service

18

 

 

 

 

 

 

2

www.desatech.com

113183-01B

Page 1 Page 3
Image 2
Page 1 Page 3
Contents What to do if YOU Smell GAS Thermostat Models CDR3924NT and CDR3924PTTable of Contents Safety Information Local Codes Product Features Product IdentificationUnusually Tight Construction AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Confined and Unconfined SpaceVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Installation Check GAS TypeRear Installation and Clearances for VENT-FREE OperationLog WidthFloor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installation Items NeededConnecting to GAS Supply External Regulator With Vent Pointing DownNatural From Gas Checking GAS ConnectionsPropane/LP From Test Pressures In Excess Of 1/2 Psig 3.5 kPaInstalling Logs Test Pressures Equal To or Less Than 1/2 Psig 3.5 kPaAttaching Grate to Base Assembly Adding Lava RockLighting Instructions For Your Safety Read Before LightingOperating Heater Thermostat Control Operation Manual Lighting ProcedureTo Turn OFF GAS To Appliance Pilot Flame Pattern Technical ServiceInspecting Burners Burner Flame PatternsLogs Cleaning MaintenanceBurner Injector Holders and Pilot AIR Inlet Holes Troubleshooting Observed Problem Possible Cause RemedyMaintenance, Cold Minute Air in gas line Operate burners until air is Gas leak. See Warning Optional Positioning Thermostat Sensing Bulb For Masonry and FACTORY- Built Metal FireplaceService Hints SpecificationsReplacement Parts AccessoriesIllustrated Parts Breakdown Models CDR3924PT and CDR3924NTParts List Limited Warranty Comfort Glow VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty
Top Page Image Contents