Regency ® L900 Direct Vent Gas Fireplace18INSTALLATIONL676 & L900 Direct Vent FireplaceIMPORTANT NOTE• A Vent Guard is required when the AstroCap is installed above grade at 7 feet or lower.• The Simpson Dura-Vent and Selkirk Direct Temp horizontal termination caps cannot be used in any applications.• Only the AstroCap XL and Snorkels are certified for horizontal terminations.NOTE: Horizontal runs of vent must be level, or have a 1/4 inch rise for every 1 foot of run towardsthe termination. Never allow the vent to run downward. This could cause high temperatures andmay present a possible fire hazard.Offset Pipe Selection:Use this table to determine offset pipe lengths.Pipe Length 5” x 8” VentingRun (X) Rise (Y)0”(0mm) 5-11/16”(144mm) 15-5/16”(389mm)6”(152mm) 8-13/16”(224mm) 18-7/16”(468mm)9”(229mm) 10-15/16”(278mm) 20-9/16”(522mm)12”(305mm) 13”(330mm) 22-11/16”(576mm)24”(610mm) 21-7/16”(697mm) 31-1/16”(789mm)36”(914mm) 29-13/16”(757mm) 39-7/16”(1002mm)48”(1219mm) 38-1/4”(972mm) 47-7/8”(1216mm)LYXFPI946-604/P Simpson Direct Vent Vent Guard (Optional) 946-623/P AstroCap XL Horizontal Cap770-994 Rigid Pipe Adapter (Must use with all Rigid Piping) 946-506/P Vent Guard (Optional)946-625 Vinyl Siding Standoff - AstroCap XLDescription SimpsonDirect Vent Pro ®SimpsonDirect Vent GS ®DiscontinuedSelkirkDirect-Temp™Metal-Fab®Sure SealRound Support / Radiation Sheild N/A N/A N/A N/AFlat Flashing N/A N/A N/A N/AAttic Insulation Shield 12” 58DVA-IS - N/A from FPI 58DVA-IS - N/A from FPI N/A N/ABasic Horizontal Termination Kit (A) N/A N/A 5DT-HKA N/AHorizontal Termination Kit (B) 58DVA-KHA N/A 5DT-HKB N/AVertical Termination Kit 58DVA-VCH 1291 5DT-VKC N/AHigh Wind Vertical Cap N/A N/A N/A N/AHigh Wind Horizontal Cap DISC. 1285 N/A N/AHorizontal Square Termination Cap N/A 1284 5DT-HHC 5DHTVertical Termination Cap N/A N/A 5DT-HVC 5DVTStorm Collar 58DVA-SC 1253 5DT-SC 5DSCAdjustable Flashing, 0/12-6/12 58DVA-F6 1243 5DT-AF6 5DFAdjustable Flashing, 6/12-12/12 58DVA-F12 1243S 5DT-AF12 5DF-12Vinyl Siding Standoff 58DVA-VSS 1250 5DT-VS 5DVSVinyl Siding Shield Plate N/A N/A 5DT-VSP N/ASnorkel Termination 14” 58DVA-SNK14 1282 5DT-ST14 5DST14Snorkel Termination 36” N/A 1281 5DT-ST36 5DST36Restrictor Disk 58DVA-RD N/A N/A N/AColinear Flex Liner Adapter (3” Ø) N/A N/A N/A N/AComponents from different Manufacturers may not be mixed. Not All Rigid Pipe components are available directly from FPI.*NOTE: When using Metal-Fab Sure Seal Rigid Piping please note that either the Adaptor (5DDA) or 90º Starter Elbow(5D90A) must be used in conjunction with FPI Rigid Pipe Adaptor (770-994).For specific instructions or details on particularventing components please visit the followingwebsites:Simpson Direct Vent Pro: www.duravent.comSelkirk Direct-Temp: www.selkirkcorp.comMetal-Fab Sure Seal: www.mtlfab.comINSTALLATION