Fahrenheit Technologies Endurance 50F Installation & Operation Manual
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Contents
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9MASONARY THIMBLE3" CLEARANCE TOCOMBUSTIBLE24"PL VENT TEEWITH CLEANOUTCAPSTORMCOLLARALWAYS FOLLOW PL VENTMANUFACTURERS CLEARANCESTO COMBUSTIBLESFLASHINGCEILING ORWALL THIMBLE3" CLEARANCE TOCOMBUSTIBLEPL VENT TEEWITH CLEANOUTVenting into an Existing chimneycombustion air1. If the furnace’s exhaust is connected to a masonry chimney,the masonry chimney must be free of cracks that could leakexhaust gases or fly ash. a relining of the chimney with ei-ther PL vent or single wall stainless steel pipe may be neces-sary to bring the chimney into compliance.2. When chimneys are relined, a chimney chase cap thatreduces the outlet of the chimney to the size of the liner isrequired. Extend the exhaust vent above the chimney chasecap and finish it off with a rain cap. a single wall liner mayneed to be wrapped with insulation to maintain adequateexhaust temperatures when outside temperatures drop be-low freezing, causing the flue temperatures to become toolow.3. Venting into the side of an existing masonry chimney mustbe done through a masonry thimble. When wall penetrationis necessary to access a masonry chimney, use a listed PLvent wall thimble. chimney connectors should be made withminimum 24 Gauge black or blue steel.4. When venting into a Class A steel chimney, use an appro-priate PL Vent adapter.The 50F furnace may be connected to an existing class a chimney or a masonry chimney which meets theminimum requirements of nFPa 211.• Outside air is required.• Outside air may be drawn from a semi-enclosed attic orcrawl space or any semi-enclosed space. Take care not todraw cold air past water pipes that may freeze.• Use 3" or greater flexible or rigid metal piping.• Terminate the outside air pipe below the exhaust vent outlet.• An open mesh screen should be placed over the outside airpipe opening to prevent birds or rodents from nesting in theopening. Use an elbow or shield to prevent prevailing windsfrom blowing directly into the outside air intake pipe. NOTE:Mesh screen should be no smaller than one-fourth inch(1/4") by one-fourth inch (1/4").Figure 6EndURancE 50F vENTING INTO AN EXISTING ChIMNEYNOTE: The outside air pipe must terminate above themaximum snow line. Long runs should be avoided.WARNINGOutside combustion air is required forall installations!WARNINGUse the air intake damper for adjusting combustion inlet air only! Other methods of restricting or blockingcombustion inlet air are strictly prohibited!Figure 7Air IntakeDamper |
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