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123551-01
Rev. D
09/08

NOT A UPC

123551 01

DESA Heating, LLC

2701 Industrial Drive

Bowling Green, KY 42101

www.desatech.com
1-866-672-6040

WARRANTy

kEEP THIS WARRANTy

DESA HEATING, LLC LIMITED WARRANTIES

New Products

Standard Warranty:

 DESA Heating, LLC warrants this new product and any parts thereof to be free from 

defects in material and workmanship for a period of one (1) year from the date of first purchase from an 
authorized dealer provided the product has been installed, maintained and operated in accordance with 
DESA Heating, LLC’s warnings and instructions.
For products purchased for commercial, industrial or rental usage, this warranty is limited to 90 days from 
the date of first purchase.

Factory Reconditioned Products

Limited Warranty:

 DESA Heating, LLC warrants factory reconditioned products and any parts thereof 

to be free from defects in material and workmanship for 30 days from the date of first purchase from an 
authorized dealer provided the product has been installed, maintained and operated in accordance with 
DESA Heating, LLC’s warnings and instructions.

Terms Common to All Warranties

The following terms apply to all of the above warranties:
Always specify model number and serial number when contacting the manufacturer. To make a claim under 
this warranty the bill of sale or other proof of purchase must be presented.

This warranty is extended only to the original retail purchaser when purchased from an authorized dealer, 
and only when installed by a qualified installer in accordance with all local codes and instructions furnished 

with this product.

This warranty covers the cost of part(s) required to restore this product to proper operating condition and 
an allowance for labor when provided by a DESA Heating, LLC Authorized Service Center or a provider 
approved by DESA Heating, LLC. Warranty parts must be obtained through authorized dealers of this prod

-

uct and/or DESA Heating, LLC who will provide original factory replacement parts. Failure to use original 

factory replacement parts voids this warranty.

Travel, handling, transportation, diagnostic, material, labor and incidental costs associated with warranty 
repairs, unless expressly covered by this warranty, are not reimbursable under this warranty and are the 

responsibility of the owner.

Excluded from this warranty are products or parts that fail or become damaged due to misuse, accidents, 
improper installation, lack of proper maintenance, tampering, or alteration(s).
This is DESA Heating, LLC’s exclusive warranty, and to the full extent allowed by law; this express warranty 
excludes any and all other warranties, express or implied, written or verbal and limits the duration of any 
and all implied warranties, including warranties of merchantability and fitness for a particular purpose to one 
(1) year on new products and 30 days on factory reconditioned products from the date of first purchase. 
DESA Heating, LLC makes no other warranties regarding this product.
DESA Heating, LLC’s liability is limited to the purchase price of the product, and DESA Heating, LLC shall 
not be liable for any other damages whatsoever under any circumstances including indirect, incidental, or 
consequential damages.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of 

incidental or consequential damages, so the above limitation or exclusion may not apply to you. 
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. 

For information about this warranty contact:

Model (

located on product or identification tag

) _____________________________

Serial No. (

located on product or identification tag

) __________________________

Date Purchased  __________________________

Keep receipt for warranty verification.

Summary of Contents for CSG3924NTA

Page 1: ...y appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your...

Page 2: ...or 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 test ed or should not be...

Page 3: ...However the odor added to the gas can fade Gas may be present even though no odor exists Make certain you read and understand all warnings Keep this manual for reference It is your guide to safe and p...

Page 4: ...k of less than 100 lb capacity 18 Provide adequate clearances around air openings You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heat...

Page 5: ...he Commonwealth of Massachusetts Sellers of unvented propane or natural gas fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit Vent free gas pro...

Page 6: ...home needs to breathe Fresh air must enter your home All fuel burning ap pliances need fresh air for proper combustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning applianc...

Page 7: ...etermine the maximum Btu Hr the space can support _________ volume of space x 20 Maxi mum Btu Hr the space can support Example 2 560 cu ft volume of space x 20 51 200 maximum Btu Hr the space can supp...

Page 8: ...an adjoining unconfined space you must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 2 You...

Page 9: ...eated Adirtychimneyfluemay createanddistributesootwithin the house Inspect chimney flue and firebox for damage If dam aged repair flue before operat ing heater WARNING Seal any fresh air vents or ash...

Page 10: ...tinued Note When installing your gas logs into a manufactured firebox follow firebox manufacturer s instructions for minimum clearances to combustible materials B Clearances from top of fireplace open...

Page 11: ...al Slate Marble Tile etc Above Fireplace Figure 6 Minimum Mantel Clearances Without Using Hood Minimum Noncombustible Material Minimum Noncombustible Material Height Distances to Underside of Mantel T...

Page 12: ...t meet the clearances listed below you will need a hood Determining Minimum Mantel Clearance If you meet minimum clearance between man tel shelf and top of fireplace opening a hood is not required see...

Page 13: ...r base and logs front to back and side to side in fireplace 6 Carefully remove logs without moving heater base 7 Mark screw locations through one hole on each side of the mounting bracket see Figure 1...

Page 14: ...gas is commonly known as wellhead gas Installation Items Needed Before installing heater make sure you have the items listed below external regulator supplied by installer piping check local codes se...

Page 15: ...ing Gas Supply Piping System Test Pressures In Excess Of 1 2 PSIG 3 5 kPa 1 Disconnect appliance with its appliance main gas valve control valve and equip ment shutoff valve from gas supply piping Pre...

Page 16: ...tion INSTALLING LOGS WARNING Failure to posi tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or perso...

Page 17: ...n log 1 ember bed and rest back of log 6 on back log 4 see Figure 20 Figure 18 Installing Log 2 Right and Log 3 Left Figure 19 Installing Log 4 Figure 20 Installing Log 5 Right and Log 6 Left Log 5 Lo...

Page 18: ...Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information in column 1 If you don t smell gas go to the next step Operation FOR YOUR SAFETY READ BEFORE LIGHTI...

Page 19: ...tor Electrode Figure 24 Pilot Natural Ignitor Electrode Pilot Burner Thermocouple Thermocouple 9 To light the rear yellow flame burner push in and turn rear burner control knob coun terclockwise to th...

Page 20: ...r flame pat ternsshowyellowtipping follow instructionsbelow Yellowflame on rear burner is normal NOTICE Do not mistake orange flames with yellow tipping Dirt orotherfineparticlesareburned by heater ca...

Page 21: ...ted at the end of burner tubes 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 holes on the injector holders 6...

Page 22: ...en in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct OBSERVED PROBLEM Whenignitorbuttonispressed there is no spark at ODS pilot Whenignito...

Page 23: ...qualified service person 1 Contact local natural or propane LP gas company 2 Clean burner s see Clean ing and Maintenance page 20 or replace burner orifice s 3 Contact qualified service person 1 Clea...

Page 24: ...removed from line Have gas line checked by local natural or propane LP gas company 3 Observeminimuminstallation clearances see page 8 4 Clean burners see Clean ing and Maintenance page 20 1 Turn heat...

Page 25: ...Locate and correct all leaks see Checking Gas Con nections page 16 1 Open window and or door for ventilation 2 Contact local natural or propane LP gas company 3 Clean ODS pilot see Cleaning and Mainte...

Page 26: ...he mounting bracket This location allows the thermostat to keep the room temperature at an ideal comfort level for most fireplace applications For positioning the thermostat sensing bulb elsewhere an...

Page 27: ...Piezo Manifold Pressure 3 W C Inlet Gas Pressure in of water Maximum 10 5 W C Minimum 5 W C Shipping Weight 30 lbs Certified Standards Z21 11 2 2000 For purpose of input adjustment Parts Log Models C...

Page 28: ...www desatech com 123551 01D 28 PARTS Thermostat Controlled Models CSG3924NTA AND CSG3924PTA 1 16 17 2 18 12 28 24 27 27 27 27 27 27 8 8 7 9 13 5 6 19 20 4 14 10 25 3 26 22 15 21 11 23...

Page 29: ...097159 04 Piezo Ignitor 1 15 098271 10 Ignitor Cable 1 16 099056 18 Burner Orifice Injector Back 1 099056 21 Burner Orifice Injector Back 1 17 101004 02 Burner Orifice Injector Front 1 101004 18 Burn...

Page 30: ...r was malfunctioning purchase date Service Hints When Gas Pressure Is Too Low pilot will not stay lit burners will have delayed ignition fireplace will not produce specified heat for propane LP units...

Page 31: ...__ ______________________________________________________ ______________________________________________________ ______________________________________________________ ________________________________...

Page 32: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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