Tyco BB Series - Page 21

TFP610
Page 21 of 28
AREA 2
WITH AP
SPRINKLERS
AREA 1
WITH BB
SPRINKLERS
AREA 3
WITH AP
SPRINKLERS
MINIMUM
SEPARATION
15'-0" (4,6 m)
STAGGERED
SPACING WHEN
MORE THAN
ONE ROW
DRY SYSTEM SHOWN
RIDGE
WALL OR
DRAFT
CURTAIN
MINIMUM
SEPARATION
15'-0" (4,6 m)
AREA 1
WITH BB & SD
SPRINKLERS
AREA 2
WITH AP
SPRINKLERS
AREA 3
WITH AP
SPRINKLERS
FIGURE 20-B-3.
BB SPRINKLERS & AP SPRIN-
KLERS AT THE HIP
Where the total number of AP
Sprinklers at the hip is greater than
four:
• Wet Systems — Calculate the
most demanding ve BB Sprin-
klers plus the two most demand-
ing AP Sprinklers, and then cal-
culate the most demanding area
up to 1500 ft
2
(137 m
2
) having AP
Sprinklers (e.g., Area 2 in adjacent
upper gure). Use the most de-
manding calculation.
• Dry Systems — Calculate the
most demanding seven BB Sprin-
klers plus the two most demand-
ing AP Sprinklers, and then cal-
culate the most demanding area
up to 1950 ft
2
(181 m
2
) having AP
Sprinklers (e.g., Area 2 in adjacent
upper gure). Use the most de-
manding calculation.
FIGURE 20-B-4. BB SPRIN-
KLERS, SD SPRINKLERS, HIP
SPRINKLERS, & AP SPRIN-
KLERS AT THE HIP
Where the total number of AP
Sprinklers at the hip is four or less:
• Wet Systems — Calculate the
most demanding ve BB, SD,
or HIP Sprinklers plus up to two
most demanding AP Sprinklers.
• Dry Systems — Calculate the
most demanding nine BB, SD,
or HIP Sprinklers plus up to two
most demanding AP Sprinklers
(Of the nine BB, SD, or HIP Sprin-
klers, calculate up to a maximum
of seven BB Sprinklers, see adja-
cent upper gure).
Where the total number of AP
Sprinklers at the hip is greater than
four:
• Wet Systems — Calculate up to
the most demanding ve BB, SD,
or HIP Sprinklers plus the two
most demanding AP Sprinklers,
and then calculate the most de-
manding area up to 1500 ft
2
(137
m
2
) having AP Sprinklers(e.g.,
Area 2). Use the most demanding
calculation.
• Dry Systems — Calculate up to
the most demanding nine BB,
SD, or HIP Sprinklers plus the two
most demanding AP Sprinklers,
and then calculate the most de-
manding area up to 1950 ft
2
(181
m
2
) having AP Sprinklers (e.g.,
Area 2). Use the most demanding
calculation.