Correspondence December 6, 2005
CITY OF TIGARD
Thrson Baker & Associates OREGON
Jeff Zunt
3030 W Streetbound Rd
Richfield, OH 47286
RE: MECHANICAL SYSTEM — ABERCROMBIE KIDS
Project Information
Building Permit: MEC2005 -00773 Construction Type: II-B
Tenant Name: Abercrombie Kids Occupancy Type: M
Address: 9393 SW Washington Sq. Occupant Load: 107
Area: 3,200 sq ft Stories: 1
The plan review was performed under the State of Oregon Mechanical Specialty Code
(OMSC) 2004 edition. The submitted plans are approved subject to the following.
1. Equipment is located in adjacent tenant space on the mezzanine the AHU duct penetrating
the fire partition shall be protected as a through penetration per OSSC 712.3.1.
OMSC 607.5.3
2. Smoke detectors shall be installed in return air systems with a design capacity greater
than 2000 cfm. Upon activation, the smoke detector shall shut down the air distribution
system. Smoke detectors shall be connected to a fire alarm system and shall activate an
audible and visible alarm at a constantly attended location. OMSC 606
3. Equipment and appliances shall be installed as required by the terms of their approval, in
accordance with the conditions of the listing, the manufacturer's installation instructions
and this code. Manufacturer's installation instructions shall be available on the job site at
the time of inspection. OMSC 304.1
4. A cooling tower used in conjunction with an air conditioning appliance shall be installed in
accordance with the manufacturer's installation instructions. OMSC 908.1
5. Hydronic piping systems shall be tested hydrostatically at one and one half times the
maximum system design pressure, but not less than 100 psi (689 kPa). The duration of
each test shall be not less than 15 minutes. OMSC 1208.1
6. The building or structure shall not be weakened by the installation of mechanical systems.
• Where floors, walls, ceilings or any other portion of the building or structure are required
to be altered or replaced in the process of installing or repairing any system, the building
13125 SW Hall Blvd., Tigard, OR 97223 (503) 639 -4171 TDD (503) 684 -2772
or structure shall be left in a safe structural condition in accordance with the Building
Code. The cutting, notching and boring of framing members shall comply with OMSC
302 Sections 302.3.1 through 302.5.3.
7. Ducts shall be supported with approved hangers at intervals not exceeding 10 feet
or by other approved duct support systems designed in accordance with the Building
Code. Flexible and other factory-made ducts shall be supported in accordance with the
manufacturer's installation instructions. OMSC 603.10
•
8. Metallic Ducts shall be supported in accordance with Sheet Metal & Air Conditioning
Contractors National Association, Inc. (SMACNA) — Metal and Flexible. OMSC 603.4
9. Where vibration isolation of equipment and appliances is employed, an approved means
of supplemental restraint shall be used to accomplish the support and restraint. OMSC
301.10
10. Equipment and appliances regulated by this code requiring electrical connections shall
have a positive means of disconnect in accordance with the Electrical Code. OMSC 301.7
11. Appliances shall be accessible for inspection, service, repair or replacement without
removal of permanent construction. OMSC 306.1
12. Condensate from cooling coils or evaporators shall be collected and discharged to an
approved plumbing fixture or disposal area. OMSC 307.1
Mercury Thermostats. The State of Oregon prohibits the installation of thermostats that
contain mercury in commercial and residential buildings. "In accordance with ORS 455.355,
the disposal of thermostats that contain mercury shall be in accordance with programs
established by thermostat manufacturers, their representative or distributor, or by delivery to
sites that will ensure that the mercury does not become part of the solid waste stream or
wastewater."
Approved Plans: 1 set of approved plans, bearing the City of Tigard approval stamp, shall
be maintained on the jobsite. The plans shall be available to the Building Division inspectors
throughout all phases of construction. OSSC 106.4.2
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, '/
al Henzel,
Senior Plans Examiner