Tyco BB Series - Page 23

TFP610
Page 23 of 28
DRY SYSTEM SHOWN
WALLS OR
DRAFT
CURTAINS
RIDGE
DRY SYSTEM SHOWN
OBSTRUCTION
RIDGE
FIGURE 20-C-1. SD SPRINKLERS &
STANDARD SPRAY SPRINKLERS AT
THE RIDGE
• Wet Systems — Calculate the most
demanding five sprinklers of one type.
Use the most demanding calculation.
• Dry Systems — Calculate the most
demanding nine SD Sprinklers, and
then calculate the most demand-
ing seven Standard Spray Sprinklers.
Use the most demanding calculation
(see adjacent figures).
FIGURE 20-C-2. BB SPRINKLERS
& STANDARD SPRAY SPRINKLERS
BEYOND AN OBSTRUCTION
• Wet Systems — Calculate the most
demanding five BB Sprinklers plus
up to two most demanding Standard
Spray Sprinklers.
• Dry Systems — Calculate the most
demanding seven BB Sprinklers plus
up to two most demanding Stan-
dard Spray Sprinklers (see adjacent
figures).