final bid specs 09328.pdf - Freese and Nichols, Inc.

3.00 EXECUTION
3.01 PREPARATION
Coordinate work of this section with other affected work. Use reflected ceiling plans, mechanical
plans, and electrical lighting plans to avoid conflicts with lights, ducts, piping, and structure.
3.02 INSTALLATION
A. Install the sprinkler system before installing finishes, furniture, or other components which
could be damaged by water.
B. Position sprinkler heads in patterns that align transversely and longitudinally, coordinate with
lighting fixtures and ceiling diffusers, and are in line along both diagonals.
C. Position sprinkler heads a minimum of 2” from any obstruction.
D. Protect sprinkler heads which are subject to damage with sprinkler head guards. Provide wax
or lead coated sprinklers in fertilizer and chemical storage rooms.
E. Apply strippable tape or paper cover to ensure concealed sprinkler heads and concealed
head plates do not receive field paint finish. Replace any sprinkler head with field paint.
F. Route pipe to minimize obstruction to other work. Conceal all pipe above ceilings unless
indicated otherwise.
G. Provide 3/4" ball drip at low point of fire department connection and pipe to floor drain or
through exterior wall.
H. Power driven studs are prohibited as hanger supports.
I. Provide a dry sprinkler system or other approved sprinkler system, in areas subject to
freezing temperatures.
J. Provide upright pendent sprinkler heads in mechanical rooms, warehouse and equipment
rooms.
3.03 FIELD QUALITY CONTROL
A. Perform testing required by NFPA 13 and regulatory authorities. Include the cost of such
testing in the proposal.
B. Hydrostatically test systems at not less than 200 psig for two (2) hours, or at 50 psig in
excess of the maximum static pressure when the static pressure exceeds 215 psig. Measure
hydrostatic pressure at the low point of the system being tested.
C. Prepare a Material and Test Certificate, in accordance with NFPA 13 Obtain certificates of
approval from regulatory authorities. Submit certificates in the final submittal data to the
Engineer.
END OF SECTION
Dry-Pipe Sprinkler Systems 21 13 13 - 4
DPR09328