Desa CGN20 User Manual Page 1

BLUE-FLAME VENT-FREENATURAL GAS HEATEROWNER’S OPERATION AND INSTALLATION MANUALModels: CGN20, CGN20L, and RN30D®WARNING: If the information in this ma

10103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DThermocoupleIgnitor ElectrodePilot BurnerOPERATING HEATERFOR YOURSAFETY READBE

11103568OWNER’S MANUALCLEANING ANDMAINTENANCE WARNING: Turn off heaterand let cool before cleaning. CAUTION: You must keepcontrol areas, burner, and c

12103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DOBSERVED PROBLEMWhen ignitor button is pressed, there is nospark at ODS/pilotWh

13103568OWNER’S MANUALTROUBLESHOOTING ContinuedOBSERVED PROBLEMBurner backfiring duringcombustionYellow flame during burner combustionSlight smoke or

14103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30D WARNING : If you smell gas• Shut off gas supply.• Do not try to light any appl

15103568OWNER’S MANUALTECHNICALSERVICEYou may have further questions about in-stallation, operation, or troubleshooting.If so, contact DESA Internatio

16103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30D124567889101112151719212223242027261814162531310-110-2ODS/PilotRN30DILLUSTRATED

17103568OWNER’S MANUALPARTS LISTRN30DThis list contains replaceable parts used in your heater. When ordering parts, follow the instructionslisted unde

18103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30D12-112-2ODS/Pilot12345678910101112131417192721232425262229282016 1815CGN20

19103568OWNER’S MANUALThis list contains replaceable parts used in your heater. When ordering parts, follow the instructionslisted under Replacement P

2103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DLOCAL CODESInstall and use heater with care. Follow alllocal codes. In the absen

20103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DNote: Use only original replacement parts.This will protect your warranty cover

21103568OWNER’S MANUALNOTES___________________________________________________________________________________________________________________________

22103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DNOTES__________________________________________________________________________

23103568OWNER’S MANUALNOTES___________________________________________________________________________________________________________________________

KEEP THIS WARRANTYModelSerial No.Date PurchasedAlways specify model and serial numbers when communicating with the factory.We reserve the right to ame

3103568OWNER’S MANUALPRODUCTIDENTIFICATIONFigure 1 - Vent-Free Natural Gas HeaterGrillGuardIgnitor ButtonControl KnobFrontPanelHeat Shield(RN30D) or G

4103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DAIR FORCOMBUSTIONAND VENTILATIONContinued WARNING: If the area in whichthe heate

5103568OWNER’S MANUALFigure 2 - Ventilation Air from Inside BuildingOr Remove Door into Adjoining Room, Option 3Ventilation Grills Into Adjoining Room

6103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DINSTALLING TOWALLCHECK GAS TYPEUse only natural gas. If your gas supply isnot na

7103568OWNER’S MANUALContinuedINSTALLING TOWALLContinuedINSTALLING HEATER TOWALLMounting BracketThe mounting bracket is located on backpanel of heater

8103568VENT-FREE NATURAL GAS HEATERSBLUE-FLAME CGN20, CGN20L AND RN30DFigure 11 - Installing Bottom MountingScrewsFigure 10 - Mounting Heater OntoMoun

9103568OWNER’S MANUALInstall sediment trap in supply line as shownin Figure 12, page 8. Locate sediment trapwhere it is within reach for cleaning. Loc