Correspondence City of Tigard, Oregon 13125 SW Hall Blvd. ® Tigard, OR 97223 E47R' -f"
January 22, 2009
RE: MECHANICAL
Project Information I 7 130
Y
Building Permit: MEC2009 -00021 Construction Type: 5B
Tenant Name: Kaiser Occupancy Type: B
Address: 7105 SW Hampton St. Occupant Load: NA
Area: NA Stories: NA
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. Appliances shall be accessible for inspection, service, repair or replacement
without removal of permanent construction. 306.1 OMSC
5. Manufacturer's installation instructions shall be available on the jobsite at the
time of inspection. 304.1 OMSC
6. Condensate from cooling coils or evaporators shall be collected and discharged
to an approved plumbing fixture or disposal area. 307.1 OMSC
7. 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
8. Inspector may require additional sway bracing at the final installation inspection.
Phone: 503.639.4171 0 Fax: 503.684.7297 0 www.tigard- or.gov ® TTY Relay: 503.684.2772
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
4
Johnson Controls Inc.
4011 SE International Way, #605 Johnson 010
Milwaukie, OR 97222 -8826 Controls
Main 503 - 305 -2000
Fax 503 - 654 -1158
Date: February 5, 2009
To: Dan Nelson
City of Tigard
Community Development, Building Division
13125 SW Hall Blvd
Tigard, OR 97223
Project: Permit # MEC2009- 00021, New RTU Installation
Subject: Final Airflow Rate of New Rooftop Unit
Dear Dan,
This letter is a follow up to your conversation on February 2, 2009 with Johnson
Controls' mechanic Bob Pasko. The new rooftop HVAC unit being installed at Kaiser
Dental Clinic (7105 SW Hampton St) will be set at a final airflow rate of 1800CFM (4.5
Ton), down from the factory setting of 2000CFM (5 Ton). This is due to the capacity of
the existing ductwork and it not being able to accept the full 2000CFM. We will add
additional ductwork and diffusers to accommodate 1800CFM and balance accordingly.
With the final airflow rate being below 2000CFM, the addition of a duct smoke detector
will not be required.
Please let me know if you have any additional questions.
Thank you,
V 1 r Or few r
Tony M. Hunt G � Service Project Manager �/
Johnson Controls, Inc.
503/305 -2016 Office
503/654 -1158 Fax
email: tony.m.huntPici.com
Thursday, February 05, 2009 JCI Letter Page 1