Correspondence M . c a i ?--
City of Tigard, Oregon • 13125 SW Hall Blvd. • Tigard, OR 97223
January 8, 2008
•
RE: MECHANICAL T I GARD
Proiect Information
Building Permit: MEC2007 -00532 Construction Type: 2 -B
Tenant Name: Dartmouth Square Occupancy Type: B
Address: 11945 SW 70 Ave. Occupant Load: NA
Area: NA Stories: 3
The plan review was performed under the State of Oregon Mechanical Specialty Code
(OMSC) 2007 edition; and the State of Oregon Fire Code (OFC) 2007 edition. The
following corrections shall be submitted prior to issuance of this plan. The response
should be numbered as per the correction list.
1) Provide drawings and calculations for vertical ducts in shaft and large rectangular
trunk ductwork.
2) Provide structural drawings and calculations for connection of RTU to curb.
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.
/ Respectf Ily,
Dan Ne son, /C)
Senior Plans Examiner
(503)7718 -2436
dann @tigard -or.gov
Post -it® Fax Note 7671 Dat- # of
pages
Co. /Dept Co. t .�
:vII �
Phone # Phone ic s.
Fax & 70 Fax #
Phone: 503.639.4171 • Fax: 503.684.7297 • www.tigard- or.gov • TTY Relay: 503.684.2772
City of Tigard, Oregon • 13125 SW Hall Blvd. • Tigard, OR 97223
September 24, 2007
RE: MECHANICAL TI
Proiect Information T I GARD
Building Permit: MEC2007 -00532 Construction Type: 2B
Tenant Name: Dartmouth Square Occupancy Type: B
Address: 11945 SW 70 ave. Occupant Load: NA
Area: NA Stories: 3
The plan review was performed under the State of Oregon Mechanical Specialty Code
(OMSC) 2007 edition; and the State of Oregon Fire Code (OFC) 2007 edition. The
following corrections need to be submitted for review prior to issuing of the permit
1) Provide engineering for lateral design along with calculations for VAV units,
fan powered boxes, for bracing of all duct work and 90 ton RTU.
2) Provide details on firestopping for duct penetrations in the floor /ceiling
assemblies.
3) Provide design and calculations for vertical load from RTU on the roof.
4) Occupant loads not correct on outside air requirements table.
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.
Re pectfully
Dan Nelson,
Senior Plans Examiner
Phone: 503.639.4171 • Fax: 503.684.7297 • www.tigard - or.gov • TTY Relay: 503.684.2772
City of Tigard, Oregon • 13125 SW Hall Blvd. • Tigard, OR 97223
March 11, 2008 ®a
®- ,.
RE: MECHANICAL
Proiect Information �'?
Building Permit: MEC2007 -00532 Construction Type: 2 -B
Tenant Name: Dartmouth Square Occupancy Type: B
Address: 11945 SW 70 Ave. Occupant Load: 487
Area: 38,830 Sq. Ft. Stories: 3
The plan review was performed under the State of Oregon Mechanical Specialty Code
(OMSC) 2007 edition; and the State of Oregon Fire Code (OFC) 2007 edition. The
submitted plans are approved subject to the following.
1. Ductwork shall be supported in accordance with Sheet Metal & Air Conditioning
Contractors National Association, Inc. (SMACNA)
2. Each appliance shall be provided with a shutoff valve separate from the
appliance. The shutoff valve shall be located in the same room and within six feet
of the appliance served. Access shall be provided to the shutoff valve. C409.5
OMSC
3. Equipment and appliances regulated by this code requiring electrical connections
shall have a positive means of disconnect in accordance with the Electrical Code.
301.7 OMSC
4. Permanent equipment supported by the structure, 400 lbs and over, shall have
their attachments designed in accordance with the Building Code. 301.16 OMSC
5. Appliances shall be accessible for inspection, service, repair or replacement
without removal of permanent construction. 306.1 OMSC
6. Manufacturer's installation instructions shall be available on the jobsite at the
time of inspection. 304.1 OMSC
7. Condensate from cooling coils or evaporators shall be collected and discharged
to an approved plumbing fixture or disposal area. 307.1 OMSC
8. 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 or shall activate an audible and visible alarm at a
constantly attended location. 606.2, 606.4 & 606.4.1 OMSC
Phone: 503.639.4171 • Fax: 503.684.7297 • www.tigard or.gov • TTY Relay: 503.684.2772
9. Suspended -type unit heaters shall be supported by non - combustible elements
that are designed and constructed to accommodate the weight and dynamic
loads and shall be sway braced. 920.2 OMSC
10. Every refrigerant- containing part of every system that is erected on the premises
shall be tested and proved tight after complete installation, and before operation.
Tests shall include both the high and low- pressure sides of each system.
11. Provide drawings for attachment of all equipment on the roof showing connection
of any curb to roof and equipment to the curb. Provide calculations and drawings
showing seismic attachment of all equipment with a weight 4001b or greater.
12. Fire and smoke dampers shall be provided with an approved means of access,
large enough to permit inspection and maintenance of the damper and its
operating parts. Access points shall be permanently identified on the exterior by
a label. Access doors in ducts shall be tight fitting and suitable for the required
duct construction.
13. Inspector may require additional sway bracing at the final installation inspection.
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. 106.4.2 OSSC
Premises Identification: Approved numbers or addresses shall be provided for all new
buildings in such a position as to be plainly visible and legible from the street or road
fronting the property.
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.com