www.desatech.com 117001-01E2SAFETYThis appliance may be in-stalled in an aftermarket,*permanently located,manufactured (mobile)home, where not prohib-ited by local codes.* Aftermarket: Completion of sale, not forpurpose of resale, from the manufacturerWARNING: This product con-tains and/or generates chemicalsknown to the State of Californiato cause cancer or birth defectsor other reproductive harm.IMPORTANT: Read this owner’smanual carefully and completelybefore trying to assemble,operate or service this heater.Improper use of this heater cancause serious injury or deathfrom burns, fire, explosion,electrical shock and carbonmonoxide poisoning.DANGER: Carbon monoxidepoisoning may lead to death!Carbon Monoxide Poisoning: Early signsof carbon monoxide poisoning resemble theflu, with headaches, dizziness or nausea. Ifyou have these signs, the heater may not beworking properly. Get fresh air at once! Haveheater serviced. Some people are more af-fected by carbon monoxide than others. Theseinclude pregnant women, people with heart orlung disease or anemia, those under the influ-ence of alcohol and those at high altitudes.WARNING: Improperinstallation, adjustment,alteration, 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 agency orthe gas supplier.WARNING: This is anunvented gas-fired heater.It uses air (oxygen) from theroom in which it is installed.Provisions for adequatecombustion and ventila-tion air must be provided.Refer to Air for Combustionand Ventilation section onpage 5 of this manual.This appliance is only foruse with the type of gasindicated on the ratingplate. This appliance isnot convertible for usewith other gases.TABLE OF CONTENTSSafety .................................................................. 2Local Codes......................................................... 4Product Identification ........................................... 4Unpacking............................................................ 4Product Features ................................................. 4Air For Combustion and Ventilation ..................... 5Installation ........................................................... 7Operation ........................................................... 12Inspecting Heater .............................................. 14Cleaning and Maintenance ................................ 15Troubleshooting ................................................. 16Parts .................................................................. 20Specifications .................................................... 24Accessories ....................................................... 25Service Hints ..................................................... 25Technical Service............................................... 25Replacement Parts ............................................ 25Parts Central...................................................... 26Warranty ..............................................Back Cover