Desa CFS18NRA User Manual download pdf

UNVENTED (VENT-FREE)

NATURAL GAS LOG HEATER

ALSO DESIGN-CERTIFIED AS A VENTED DECORATIVE APPLIANCE

OWNER’S OPERATION AND INSTALLATION MANUAL

Save this manual for future reference

WARNING: If the information in this

manual is not followed exactly, a fire or

explosion may result causing property

damage, personal injury, or loss of life.

— Do not store or use gasoline or other

flammable vapors and liquids in the

vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do

not use any phone in your building.

• Immediately call your gas supplier from

a neighbor’s phone. Follow the gas

supplier’s instructions.

• If you cannot reach your gas supplier,

call the fire department.

— Installation and service must be per-

formed by a qualified installer, service

agency, or the gas supplier.

WARNING: Improper installation, adjust-

ment, alteration, service, or maintenance

can cause injury or property damage.

Refer to this manual for correct installa-

tion and operational procedures. For

assistance or additional information

consult a qualified installer, service

agency, or the gas supplier.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in

which it is installed. Provisions for adequate combustion and ventilation air must be

provided. Refer to

Air for Combustion and Ventilation

section on page 4 of this manual.

REMOTE

OFF

CFS18NRA

VS18NRA

VS24NRA

VS30NRA

"A" Model

18", 24", and 30"

Remote-Ready

DESA INTERNATIONAL

This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by

state or local codes.

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

WARNING: This appliance is for in-

stallation only in a solid-fuel burning

masonry or UL127 factory-built fire-

place, or in an approved ventless fire-

box. It is design-certified for these in-

stallations in accordance with ANS

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.

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Summary of Contents

Page 1 - DESA INTERNATIONAL

UNVENTED (VENT-FREE)NATURAL GAS LOG HEATERALSO DESIGN-CERTIFIED AS A VENTED DECORATIVE APPLIANCEOWNER’S OPERATION AND INSTALLATION MANUALSave this man

Page 2

10104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALINSTALLATIONContinuedINSTALLING HEATER BASEASSEMBLY WARNING: You must securethis heater to fi

Page 3

11104416OWNER’S MANUALInstallation Items NeededBefore installing heater, make sure you havethe items listed below.• piping (check local codes)• sealan

Page 4

12104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALONPOSITOPOSOpenClosedManualShutoffValveFigure 15 - Checking Gas JointsGas MeterManual Shutoff

Page 5

13104416OWNER’S MANUAL44INSTALLING LOGSFigure 16- Installing Front Log (#1)Figure 17 - Installing Middle Log (#2)Figure 18 - Installing Rear Log (#3)

Page 6

14104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALOFFPILOTONLOIHAUTOOFFONOPERATINGHEATERFOR YOUR SAFETYREAD BEFORELIGHTING WARNING: If you do n

Page 7

15104416OWNER’S MANUALOPERATINGHEATERContinuedTO TURN OFF GASTO APPLIANCE1. Follow steps 1 through 6 under Light-ing Instructions, page 14.2. Depress

Page 8

16104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALTEMPSTATUSHILOMAN ONAUTO OFFOFFPILOTONLOIHONOFFREMOTEOPERATINGHEATERContinuedFigure 22 - Sett

Page 9

17104416OWNER’S MANUAL WARNING: If yellow tippingoccurs, your heater could pro-duce increased levels of carbonmonoxide. If front burner flamepattern s

Page 10

18104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALCLEANING ANDMAINTENANCE WARNING: Turn off heaterand let cool before cleaning. CAUTION: You mu

Page 11 - OWNER’S MANUAL

19104416OWNER’S MANUAL WARNING: Turn off and un-plug heater and let cool beforeservicing. Only a qualified ser-vice person should service andrepair he

Page 12

2104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONAL1. This appliance is only for use with thetype of gas indicated on the rating plate.This appli

Page 13

20104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALTROUBLESHOOTINGContinuedREMEDY1. Contact local natural gas company2. Clean burner(s) (see Cle

Page 14

21104416OWNER’S MANUALREMEDY1. This is common with most heaters. Ifnoise is excessive, contact qualified ser-vice person1. Open window to ventilate ro

Page 15

22104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALILLUSTRATEDPARTSBREAKDOWNVARIABLE CONTROLCFS18NRA, VS18NRAVS24NRA, VS30NRA7891077111222132526

Page 16

23104416OWNER’S MANUALPARTS LISTVARIABLE CONTROLCFS18NRA, VS18NRAVS24NRA, VS30NRAThis list contains replaceable parts used in your heater. When orderi

Page 17

24104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALWIRING DIAGRAMAUTOOFFONThermopileSPECIFICATIONS18" Variable 24" Variable 30" V

Page 18

25104416OWNER’S MANUALPurchase these heater accessories from yourlocal dealer. If they can not supply theseaccessories, call DESA International’s Part

Page 19

LIMITED WARRANTYVENT-FREE NATURAL GAS LOG HEATERSDESA International warrants this product to be free from defects in materials and components for four

Page 20

3104416OWNER’S MANUALAUTOMANOFFSTATUSONLOHITEMPPRODUCTIDENTIFICATIONFigure 1 - VS24NR ShownLOCAL CODESInstall and use heater with care. Follow allloca

Page 21

4104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALToday’s homes are built more energy effi-cient than ever. New materials, increasedinsulation,

Page 22

5104416OWNER’S MANUALDETERMINING FRESH-AIR FLOW FOR HEATER LOCATIONDetermining if You Have a Confined or Unconfined SpaceUse this work sheet to determ

Page 23

6104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALAIR FORCOMBUSTION ANDVENTILATIONContinuedVENTILATION AIRVentilation Air From InsideBuildingThi

Page 24

7104416OWNER’S MANUALLOG SIZING REQUIREMENTSMinimum Firebox SizeLog Front Rear*Size Height Depth Width Width18" 17" 14" 20" 14&quo

Page 25

8104416UNVENTED NATURAL GAS LOG HEATERDESA INTERNATIONALHeat ResistantMaterial (A)Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above

Page 26 - WARRANTY INFORMATION

9104416OWNER’S MANUALMinimum Non-Combustible Material Minimum Non-Combustible Material Height Distances to Underside ofMantel Top of FireplaceOpeningU