Provide wet-pipe sprinklers
for habitable spaces such as guestrooms, guestroom corridors,
restaurants, ballrooms / meeting rooms, public and back-ofhouse
areas.
Sprinkler Heads: Fast-response 68° to 74° C (155°
to 165° F), recessed, semi-recessed and concealed .Coordinate
locations of sprinkler heads at guestrooms and public areas
with the interior designer to avoid location conflicts and
minimize appearance impact
Automatic Sprinkler / Standpipe System
1. Design Requirements:
• Standards: NFPA 13 (not NFPA 13R), 14 and 20.
• Water Source: Perform flow-test(s) and document.
Provide dependable source of water quantity and pressure
from municipal water main or from on-site cistern or tank(s)
if municipal water is not available.
• Safety Factor: Provide a 10% hydraulic safety factor.
• Pressure Reducing Valves: Design system within maximum
pressure of 175 psi without use of pressure reducing valves.
• Low-Rise Buildings: Provide control valves, flow
and tamper switches at each connection monitored on the
fire alarm system. Locate inspector's test assembly at remote
end of zone (not in guestrooms) withdischarge piped to exterior
drain.
• High Rise Buildings: Connect guestroom floor sprinkler
piping to 2 risers at each floor with a control valve and
flow and tamper switches at each connection. At guestroom
and non-guestroom levels, locate inspector test assembly
at remote end of zone, hardpiped to exterior similar to
low-rise building. |
Guestroom Bathrooms: Sprinklers
are not required if bathroom is less than 5.10 m2 (55 sq.
ft.). Regardless of bathroom area, sprinklers are required
when combustible tubs or shower or tub surrounds (plastic
/ fiberglass) enclosures are used.
• Closets and Pantries: Sprinklers are not required
in clothes closets, linen closets and pantries within hotel
guestrooms where the area of the space does not exceed 2.2
m2 (24 sq. ft.). Closets and pantries with washer, dryer,
water heater, mechanical or electrical equipment require
sprinklers.
• Building Exception: Sprinkler / standpipe system
may not be required in existing buildings of 2 stories or
less where all guestrooms exit directly to exterior (no
enclosed corridors). |
