Correspondence City o f Tigard, Oregon • 13125 SW Hall Blvd. • Tigard, OR 97223
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April 13, 2009 !
RE: FIRE ALARM
TIGARD
Building Permit: FPS2009 -00007 Construction Type: 2A
Tenant Name: Plaza West Occupancy Type: B
Address: 9600 SW Oak St. Occupant Load: NA
Area: N/A Stories: 5
The plan review was performed under the State of Oregon Structural Specialty Code
(OSSC), 2007 edition; the Oregon Fire Code (OFC), 2007 edition and NFPA 72 Alarm
Code.
Because this building does not have a complying NFPA13 sprinkler system, the
corridors will be considered to be rated and all smoke dampers serving the
corridor shall be actuated by the building alarm. By code this building should
have smoke detectors that shut down any HVAC air handler that has greater than
2000 CFM capacity and tied into the alarm system.
General Requirements
A separate low- voltage electrical permit is required for installation and inspection of
alarm wiring.
A completed inspection and testing form is required at the time of final inspection
containing the information as outlined in NFPA section 10.6.2.3.
TESTING — NFPA 72 Chapter 10, OFC 901.2.1, 901.5, 903.5
1: Upon completion of the installation, a satisfactory test of the entire system
shall be made in the presence of the building inspector. All functions of the
system or alteration shall be tested..
2. A record of completion in accordance with NFPD 72 verifying that the system has
been installed in accordance with the approved plans and specifications shall be
provided.
VISUAL ALARMS — NFPA 72 - 5.14.5, 7.5.4, OSSC chapter 9 & 11
3. When required; Visual alarms shall be located not less than 80 inches and not more
than 96 inches above floor level. When a low ceiling exists, the visual alarm shall be
mounted within the dimensions stated above and at least 6 inches below the ceiling. No
place in a room shall be more than 50 feet from a visual signal. In corridors spacing
between devices shall be no more than 100 Ft. and no more than 15 Ft. from the end.
Phone: 503.639.4171 • Fax: 503.684.7297 . • www.tigard - or.gov • TTY Relay: 503.684.2772
MANUAL ALARM - 1109.2.3.5, 1109.2.3.6 OSSC
4. Manual Fire Alarm activation devices when installed shall be mounted in the following
reach ranges:
• Forward Reach - 15 inches to 48 inches above the floor.
• Side Reach — 9 inches to 54 inches above the floor.
ALARM SIGNALS — OFC 903.4
5. Alarm, supervisory and trouble signals shall be distinctly different and shall be
automatically transmitted to an approved central station, remote supervising station or
proprietary supervising station as defined in NFPA 72 or, when approved by the fire
code official, shall sound an audible signal at a constantly attended location.
6. Duct smoke detectors shall be connected to the building's fire alarm control
panel when a fire alarm system is provided. Activation of a duct smoke detector
shall initiate a visible and audible supervisory signal at a constantly attended
location. Duct smoke detectors shall not be used as a substitute for required
open -area detection.
7. Automatic fire- extinguishing systems shall be connected to the building
alarm system where a fire alarm system is required by another section of this
code or is otherwise installed. OSSC 907.13
When responding, provide an itemized letter stating in what way each numbered
issue has been addressed in the revision.
t.
When submitting revised drawings or additional information, please attach a copy of the
enclosed City of Tigard, Letter of Transmittal. The letter of transmittal assists the City
of Tigard in tracking and processing the documents.
Respectfully,
Dan Nelson,
Senior Plans Examiner
(503)718 -2436
dann @tigard - or.gov