www.desatech.com 112108-01C2TAbLE OF CONTENTSSafety Information ............................................... 2Dimensions .......................................................... 5Pre-Installation Preparation ................................. 5General Venting ................................................... 8Venting Installation Instructions ......................... 10Installation ......................................................... 18Pilot/Electrode Assembly Adjustment ................ 23Burner Flame Adjustment .................................. 24Cleaning and Maintenance ................................ 25Operating Fireplace ........................................... 26Specifications .................................................... 28Service Hints ..................................................... 28Technical Service............................................... 28Replacement Parts ............................................ 28Troubleshooting ................................................. 29Wiring Diagrams ................................................ 31Parts and Accessories ....................................... 32Warranty Information ...........................Back CoverSAFETy INFORMATIONWARNING: Improper in-stallation, adjustment, al-teration, service or main-tenance can cause injuryor property damage. Referto this manual for correctinstallation and operation-al procedures. For assis-tance or additional infor-mation consult a qualifiedinstaller, service agencyor the gas supplier.This appliance may be in-stalled in an aftermarket,*permanently located,manufactured (mobile)home, where not prohib-ited by local codes.This appliance is only foruse with the type of gasindicated on the ratingplate. This appliance isnot convertible for usewith other gases, unlessa certified kit is used.* Aftermarket: Completion of sale, not forpurpose of resale, from the manufacturerThis Direct-Vent Gas Fire-place Heater series isintended for use withnatural or propane/LPgas only. Do not attemptto burn any solid fuels inthese appliances.State of Massachusetts:The installation mustbe made by a licensedplumber or gas fitter inthe Commonwealth ofMassachusetts.WARNING: This product con-tains and/or generates chemicalsknown to the State of Californiato cause cancer or birth defectsor other reproductive harm.IMPORTANT: Check local codesbefore installing this fireplace.IMPORTANT: Read this owner’smanual carefully and completelybefore trying to assemble, op-erate or service this fireplace.Improper use of this fireplacecan cause serious injury or deathfrom burns, fire, explosion,electrical shock and carbonmonoxide poisoning.