Desa GVC35NA User Manual

Save this manual for future reference.WARNING: If the information in this manualis not followed exactly, a fire or explosionmay result causing propert

10100749VENTING HEATER (continued)INSTALLINGHEATERContinuedProper Size VentTo safely vent heater, the vent connector pipe must be the same diameter as

11100749INSTALLINGHEATERContinuedCONNECTING TO GAS SUPPLY WARNINGA qualified service person must connect heater to gassupply. Follow all local codes.

12100749Figure 7 - Gas Connection* An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is anacceptable alternative to test gauge c

13100749INSTALLINGHEATERContinuedCHECKING GAS CONNECTIONS WARNINGTest all gas piping and connections for leaks after install-ing or servicing. Correct

14100749FRESH AIR FORCOMBUSTIONANDVENTILATION WARNINGThis heater must have fresh air for proper operation. Ifnot, poor fuel combustion and improper ve

15100749FRESH AIR FORCOMBUSTIONANDVENTILATIONContinuedDETERMINING FRESH-AIR FLOW FOR HEATER LOCATIONExample 1: Locating Heater in Unconfined (Open) Ar

16100749FRESH AIR FORCOMBUSTIONANDVENTILATIONContinuedFigure 10 - Ventilation Air from OutdoorsDraft Hood Spillage: This is a hazardous situation. Dra

17100749FRESH AIR FORCOMBUSTIONANDVENTILATIONContinuedAfter providing ventilation between rooms, check for draft hood spillage (see DraftHood Spillage

18100749OPERATINGHEATERA. This appliance has a pilot which must be lighted by hand. When lighting thepilot, follow these instructions exactly.B. BEFOR

191007495. Wait five (5) minutes to clear out any gas. Then smell for gas, including near thefloor. If you smell gas, STOP! Follow “B” in the safety i

2100749CONTENTSSECTION PAGESafety Information... 3Product Identification ...

20100749MANUAL LIGHTING PROCEDURE1. Remove lower front access panel on heater.2. Locate pilot. Pilot is attached to the front of burner.3. Follow step

21100749INSPECTINGPILOT ANDBURNERFLAMECheck pilot flame pattern and burner flame pattern often.PILOT FLAME PATTERNFigure 14 shows a correct pilot flam

22100749Figure 16 - Correct Burner Flame PatternSharp BlueFlameINSPECTINGPILOT ANDBURNERFLAMEContinuedHighYellowFlameFlameLiftingOff ofBurnerFigure 17

23100749 WARNINGTurn off heater and let cool before cleaning or servicing. WARNINGKeep heater clear and free from combustible materials,gasoline, and

24100749TROUBLE-SHOOTINGNote: All troubleshootingitems are listed in order ofoperation. WARNINGTurn off and unplug heater and let cool before servici

25100749TROUBLE-SHOOTINGContinuedREMEDY1. Fully open manualshut-off valve.2. Press in control knobfully.3. After pilot lights, keepcontrol knob presse

26100749TROUBLE-SHOOTINGContinuedOBSERVEDPROBLEMBurner backfiringduring combustion.Yellow flame duringburner combustion.Slight smoke or odorduring ini

27100749TROUBLE-SHOOTINGContinued WARNINGIf you smell gas• Shut off gas supply.• Do not try to light any appliance.• Do not touch any electrical switc

28100749SERVICEPROCEDURES WARNINGTurn off and unplug heater and let cool before servicing.Unless you need gas supply for testing, shut off manualshuto

29100749SERVICEPROCEDURESContinuedRemoving Burner1. Shut off gas supply toheater.2. Remove lower frontaccess panel on heater.3. Disconnect burner tube

3100749SAFETYINFORMATION WARNINGSIMPORTANT: Read this owner’s manual carefully and completely be-fore trying to assemble, operate, or service this hea

30100749SERVICEPROCEDURESContinuedChanging Burner Orifice1. Shut off gas supply toheater.2. Remove lower frontaccess panel on heater.3. Disconnect bur

31100749TECHNICALSERVICEYou may have further questions about installation, operation, or troubleshooting.If so, contact DESA International’s Technical

32100749Note: Use only original replacement parts. This will protect your warranty cover-age for parts replaced under warranty.Parts Under WarrantyCon

33100749This list contains replaceable parts used in your heater. When ordering parts, follow theinstructions listed under Ordering Replacement Parts

34100749ILLUSTRATEDPARTS LISTBurnerAssembly1110819181716151412139765432135 Model Only650 and 65Models11202117164 24 23262522277

35100749PARTS LISTBurnerAssemblyThis list contains replaceable parts used in your heater. When ordering parts, follow theinstructions listed under Ord

WARRANTY INFORMATION100749-01REV. D12/94Always specify model and serial numbers when communicating with the factory.We reserve the right to amend thes

4100749SAFETYINFORMATIONContinued WARNINGS Continued6. Provide the following minimum heater clearances from combustibles (as viewedfrom the front of h

5100749PRODUCTIDENTIFICATIONFigure 1 - Vented Natural Gas HeaterLower FrontAccess PanelIgnitorButtonControlKnobFigure 2 - Vented Natural Gas Heater, R

6100749Install and use heater with care. Follow all local codes. In the absence of localcodes, use the latest edition of the following:• National Fuel

7100749INSTALLINGHEATERContinuedLOCATING HEATER WARNINGMaintain the minimum clearances shown in Figure 3,below. If you can, provide greater clearances

8100749Note: Venting/chimney materials are not supplied with heater.VENTING HEATERINSTALLINGHEATERContinued WARNINGWhen venting this heater, follow th

9100749INSTALLINGHEATERContinuedVENTING HEATER (continued) WARNINGDo not vent heater in any of the following ways (see Figure 4).Heater must be vente