Owner's Manual

SECTION 1.0 COMBUSTION, VENTILATION, VENT SYSTEMS ............................. 8

Fig. 1 — 1 Complete Combustion of Natural Gas .......................................10

—2 ConnedSpace,VentilationFromInsideBuilding .....................11

—3 ConnedSpace,VentilationFromOutdoors .............................11

—4 UnconnedSpace,VentilationFromOutdoors .........................12

— 5 Constant Diameter Manifold Vent ..............................................13

— 6 Graduated Diameter Manifold Vent ...........................................14

— 7 Individual Vents .........................................................................15

SECTION 2.0 VENT DESIGN .............................................................................. 16

Fig. 2 — 1 Input vs. Gross Output vs. Net Rating .......................................18

— 2 Recommended Number of Modules ..........................................19

— 3 Input and Dimensional Data ......................................................20

— 4 Tapered Manifold Vent ............................................................... 21

— 5 Constant Diameter Manifold Vent ..............................................21

— 6 Dual Takeoff Constant Diameter Manifold Vent .........................22

— 7 Dual Takeoff Tapered Manifold Vent ..........................................22

— 8, 9 Constant Diameter Vent, Back-to-Back .....................................23

— 10 Minimum Installation Clearances ............................................... 24

— 11 Free Area of Ventilation Openings .............................................24

— 12 Individual Vent Table .................................................................. 25

— 13 Common Vent Table ......................................................... 23 & 27

— 14 Vent Connector Table ................................................................28

— 15 Vent Diameter vs. Chimney Area ...............................................29

— 16 Area of Masonry Flue Tiles ........................................................ 30

SECTION 3.0 WATER PIPING ............................................................................. 31

Fig. 3 — 1 Water Piping for Parallel Pumping ............................................. 39

— 2 Water Piping for Primary-Secondary Pumping ..........................40

— 3 Recommended Manifold Piping ................................................. 41

— 4 Module Water Flow Data ...........................................................42

— 5 Friction vs. Water Flow — Iron Pipe ..........................................43

— 6 Friction vs. Water Flow — Copper Pipe .....................................44

— 7 Equivalent Length of Pipe for 90° Elbows .................................44

— 8 Volume of Water in Pipe ............................................................45

— 9 Compression Tank Selection Table............................................45

— 10 Correction Factor for Compression Tank Selection ...................46

LIST OF FIGURES

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