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Sprinkler 121 d
sprinklers, use only new sprinklers of
the proper model and style, with the
correct orifice size, temperature rat-
ing, and response characteristics. A
fully stocked spare sprinkler cabinet
should be provided for this purpose,
as required by NFPA 13.
C. The sprinkler discharge pattern is
critical for proper fire protection.
Therefore, nothing should be hung
from, attached to, or otherwise ob-
struct the discharge pattern. Refer
to obstruction criteria in applicable
Installation Standards.
D. When replacing existing sprinklers,
the system must be removed from
service. Refer to the appropriate sys-
Replaces page 121 a-d, dated May 28, 2004 (updated
design requirements and re-formatted the page).
TECHNICAL DATA
tem description and/or valve instruc-
tions. Prior to removing the system
from service, notify all Authorities
Having Jurisdiction. Consideration
should be given to employment of a
fire patrol in the affected area.
1. Remove the system from service,
drain all water, and relieve all pres-
sure on the piping.
2. Using the special sprinkler wrench,
remove the old sprinkler and install
the new unit.
3. Place the system back in service
and secure all valves. Check the
replaced sprinklers and repair all
leaks.
January 20, 2006
ESFR UPRIGHT SPRINKLER
SIN VK520 (K = 14.0)
E. Sprinkler systems that have been
subject to a fire must be returned
to service as soon as possible. The
entire system must be inspected for
damage and repaired or replaced
as necessary. Sprinklers that have
been exposed to corrosive products
of combustion, but have not oper-
ated, should be replaced. Refer to
the Authorities Having Jurisdiction for
minimum replacement requirements.
Form No. F_060298
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