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INDEX OF ILLUSTRATIONS AND TABLES
Fig. 1 - Direct Vent - Vertical Termination of Vent and Combustion Air Piping. ........................... 12
Fig. 2 - Termination Clearances of Direct Vent System .................................................................. 13
Fig. 3 - Vertical Vent Bird Screen Installation ..................................................................................14
Fig. 4 - Vertical Combustion Air Bird Screen Installation ............................................................... 14
Fig. 5 - Direct Vent - Vertical Termination of Multiple INSTINCT Boilers ......................................14
Fig. 6 - Direct Vent - Sidewall Termination of Vent and Combustion Air Piping ........................... 17
Fig. 7 - Direct Vent - Alternate Sidewall Termination of Vent and Combustion Air Piping .......... 17
Fig. 8- Direct Vent - Sidewall Snorkel Termination of Vent and Combustion Air Piping ............. 17
Fig. 9 - Sidewall Vent Bird Screen Installation .................................................................................18
Fig. 10 - Sidewall Combustion Air Bird Screen Installation ............................................................18
Fig. 11 - Direct Vent - Sidewall Termination of Multiple INSTINCT Boilers .................................... 19
Fig. 12 - Direct Vent - Vertical Vent and Side Wall Combustion Air Terminations ........................ 19
Fig. 13 - Direct Vent - Vertical Vent and Sidewall Combustion Air Terminations of
Multiple INSTINCT Boilers ...................................................................................................22
Fig. 14 - Ventilation and Combustion Requirements Sticker Placed on the Appliance .............. 23
Fig. 15 - Category - IV - Vertical Termination of Vent Pipe ............................................................ 24
Fig. 16 - Termination Clearances of Category IV System ................................................................25
Fig. 17 - Category IV- Vertical Termination of Multiple INSTINCT Boilers .................................... 26
Fig. 18 - Category IV - Sidewall Termination of Vent Pipe ............................................................... 27
Fig. 19 - Category IV - Sidewall Snorkel Termination of Vent Pipe .................................................27
Fig. 20 - Category IV - Sidewall Termination of Multiple INSTINCT Boilers ................................ 28
Fig. 21 - 2” CPVC/PVC Venting System Vertical ............................................................................. 29
Fig. 22 - 2” CPVC/PVC Venting System Horizontal ........................................................................ 29
Table 1 - Approved Stainless Steel Vent Adapters and Terminations..............................................3
Table 2 - Approved 2” (60 mm) Rigid Polypropylene Components ................................................4
Table 3 - Approved 3” (80 mm) Rigid Polypropylene Components ................................................. 5
Table 4 - Approved 2” (60 mm) Flex Polypropylene Components ..................................................6
Table 5 - Approved 3” (80 mm) Flex Polypropylene Components .................................................. 6
Table 6 - Maximum Allowable Vent or Combustion Air Piping Length ............................................7