Raypak HIDELTA 992B Installation & Operating Instructions Manual

Also see for HI DELTA 1262B: Specification sheet Installation & operating instructions Specifications Installation & operating instructions Brochure & specs

31Air InletMax. Length*ModelNo.CertifiedVentingMaterialVent SizeMaximumEquivalentVent Length*CombustionAirIntake PipeMaterial 10” 12”992B 10”1262B1532B 12” 75’ 100’1802B2002B2072B14”2342BCategory III16”70’Room Air40’DuctedCombustionAirGalvanizedSteel,PVC,ABS,CPVC 40’ 75’Table L: Category III Horizontal and Direct VentingUse only the special gas vent pipes listed for use withCategory III gas burning heaters, such as the AL29-4Cstainless steel vents offered by Heat Fab Inc. (800-772-0739), Protech System, Inc. (800-766-3473),Z-Flex (800-654-5600) or American Metal Products(800-423-4270). Pipe joints must be positively sealed.Follow the vent manufacturer’s installation instructionscarefully.Direct Vent - Horizontal Through-the-WallInstallationThese installations utilize the heater-mounted blowerto draw combustion air from outdoors and vent com-bustion products to the outdoors.Note: When vertical height exceeds 25 ft,consult factory prior to installation.Fig. 29: Direct Vent - Horizontal Through-the-WallThe total length of the through-the-wall flue cannotexceed 40 equivalent ft in length for the flue outlet.Each elbow used is equal to 10 ft of straight pipe. Thiswill allow installation in one of the three followingarrangements:• 40’ of straight flue pipe• 30’ of straight flue pipe and one elbow• 20’ of straight flue pipe and two elbows.The total length of air supply pipe cannot exceed thedistances listed in Table L. Each elbow used is equalto 10 ft of straight pipe. This will allow installation inany arrangement that does not exceed the lengthsshown in Table L.The flue direct vent cap is not considered in the over-all length of the venting system.Care must be taken during assembly that all joints aresealed properly and are airtight.The vent must be installed to prevent the potential ac-cumulation of condensate in the vent pipes. It isrequired that:1. The vent must be installed with a slight downwardslope of not more than 1/4 inch per foot of hori-zontal run to the vent terminal.2. The vent must be insulated through the length ofthe horizontal run.* Subtract 10 ft per elbow. Max. 3 elbows.Maximum combustion air duct length terminated at 100 equivalent ft.