Design Dynamics VTD-18N-JHB Owner's Operation And Installation Manual

Contents

www.desatech.com 114370-01E6Figure 3 - Attaching Damper ClampManufactured.FireplaceMasonry.FireplaceDamperDamper.ClampDamperDamper.Clamp DamperVENTING SPECIFICATIONS FORINSTALLATIONThe fireplace chimney flue and vent must bedrafting.properly..To.check.the.vent.for.proper.drafting: Light a tightly rolled newspaper onone.end.and.place.it.at.the.inside.front.edge.of the fireplace. Observe the smoke and besure the vent is properly drawing it up thechimney. If the smoke spills out into the room,extinguish the flame and remove any obstruc-tion.until.proper.venting.is.achieved.The chimney flue must remain open a mini-mum of 3" at all times during the operation ofthis.log.set.MODELBURNERDESCRIPTIONBTUINPUTMINIMUM VENTOPENINGVTD-18N-JHB 18" Ramp 59,000 8" dia.VTD-24N-JHB 24" Ramp 69,000 8" dia.VTD-30N-JHB 30" Ramp 74,000 8" dia.INSTALLATIONContinuedMINIMUM FIREBOX SIZESMODEL FRONT WIDTH BACK WIDTH* DEPTH HEIGHTVTD-18N-JHB 28" 16" 14" 18"VTD-24N-JHB 9.3/4" 17" 15.1/" 18"VTD-30N-JHB 36" 27" 18" 18"*At.depth.indicatedBURNER ORIFICELOG SIZENATURALINCHES NUMBER18" 0.1495 524" 0.1570 30" 0.1660 19FUEL INLET PRESSURESPECIFICATIONS (W.C.)MIN. MAX.NG 5.5" 10.5"Figure 2 - Technical Information ChartsINSTALLING DAMPER CLAMPSecure.the.damper.stop.clamp.to.the.edge.of.the damper as shown in Figure 3. If for anyreason this clamp doesn't work on your fire-place, another suitable clamp or permanentstop must be installed, or the damper blademust.be.cut.or.removed.