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Correspondence VLMK Consulting Engineers December 13, 1996 3933 S.W. KELLY AVENUE, PORTLAND, OREGON 97201 -4393 PRINCIPALS (503) 222 -4453 / FAX (503) 248 -9263 ALFRED VAN DOMELEN, P.E. JAMES E. KNAUF, P.E. ASSOCIATES FAX TRANSMITTAL GARY J. LEWIS, P.E. GREG BLEFGEN, P.E. HAVLIN G. KEMP P.E. /00Z S 5 5 ` � JOHN BROOKS To: JOHNSON CONTROLS From: HAVLIN KEMP Attn: ALAN KOLKEMO Pages Following: 0 Project: METZGAR ELENTARY SCHOOL Copy in mail: X ADDITION OF HVAC UNITS Re: FIELD REVIEW OF IN PLACE HVAC UNITS AT METZGAR SCHOOL Following our meeting at Metzgar School on Wednesday, 12/11/96, I reviewed our recommendations for strengthening the structure. The HVAC units have not been placed at the center of each classroom as shown on your layout drawings, rather they have been placed within 10 feet of the classroom sidewall. The columns supporting the roof structure are located in the classroom walls. This location places less bending stress on the roof girder. Consequently: 1. No additional reinforcement is required at the glulam girders. The 1 %" micro -lam is not required to be added at the glu -lam beam spanning the classrooms. 2. At the "Front" classrooms, the 4" x 5' /z' T &G roof sheathing is adequate to support the new HVAC Units without any additional structure. 3. At the "Back" classrooms, the 3 1/4" x 8" purlins are adequate to support the new HVAC units without any additional structural reinforcement. The 2 x 8 is not required to be added along side the existing purlins. Note: The new HVAC units are shown to be 45" wide and the 3'/4" x 8" purlins are at 48" on center. If the new HVAC unit curbs bear directly on the purlins, no additional structure is required between the purlins, below the roof sheathing. If you have any additional questions, please give me a call at 222 -4453. Best regards, VLMK Consulting Engineers v 0 �O,IME F sx 'o ,352 9 y . OREGON 9 A ( � Havlin G. Kemp ti .471, 1 G ,9 � � Q Project Manager EXP. 6 -30 -97 Documentl Johnson Controls, Inc. Controls Group Suite 605 4011 S.E. International Way Milwaukie, OR 97222 Tel. 503/654 8422 - City of Tigard JOHNSON 13125 SW Hall Blvd. CON I TISO" LS Tigard, OR 97223 September 1 1, 1996 Subject: Metzger Elementary Mechanic I Plan Review PC #: 7 -90c Mec. # 96 -025 We submit the following as responses to said comments outlined in your letter dated August 19, 1996 (attached) for your review and approval. 1. Provided in packet 'Provided in packet see drawings 6 & 7 t3 Provided in packet Provided in packet A y. Provided in packet see drawings 6 & 7 If you have any further question please feel free to call. Sincerely, HNSON CONTROLS, INC. Dick Petrich Project Manager t -i RFCEl IUG 2 0 199 C August 19, 1996 � :H � S i'N CU J CLS, Ii C. of TIGAR® Johnson Controls, Inc. OREGON 4011 SE International Milwaukie, OR 97222 RE: Metzger Elementary Mechanical Plan Review 10255 SW 90th Avenue PC #: 7 -90c MEC #: 96 -0251 Submittal documents for the above referenced project have been reviewed for conformance with the applicable 1996 Oregon Specialty Codes and other applicable codes and standards. The following comments are noted: �j Submit completed applicable Forms 4a through 4j, and required duct insulation Form 4a YV through 4c of the Energy Code Compliance Manual (Revised April 1996). Air moving systems (combination of units) supplying air in excess of 2000 CFM to enclosed spaces shall be equipped with an automatic shut -off. The smoke detectors shall be supervised when a fire detection or alarm system is provided [OSSC, Section ' 608]. U� Provide an engineer's analysis of each structural member supporting the additional HVAC units [OSSC, Section 106.3.2]. A The attachment of permanent equipment (HVAC) supported by the building's structural U "` components shall be designed to resist the total design seismic forces prescribed in ec Section 1603.2 of the Structural Specialty Code. Provide an engineer's design specifying attachment requirements [SSC Section 160.3.2 and OMSC, Section 304.4]. The heat/ventilation system shall provide outside air per occupant in all portions of the building [UBC Section 1202.2.1 and Table 12 -P]. A.�/ Provide outside air specifications on the revised plans. Please submit three copies of revised submittal documents and a letter indicating your response to the above comments for review. Please call me at (503) 639 -4171 if you have any questions. Sincerely, / Ykj ( Jim Funk / PLANS EXAMINER i:\citywide\pc7-90c.doc 13125 SW Hall Blvd., Tigard, OR 97223 (503) 639 -4171 TDD (503) 684 -2772 • RICEIVED AUG 1 E 199E m � August 16, 1996 JOHNSON CONTROLS, INC. CI PORTLAND, �IGI�R® PORTLAND, OR. Johnson Controls, Inc. 4011 SE International OREGON Milwaukie, OR 97222 RE: Tigard Swim Center Mechanical Plan Review 8680 SW Durham Road PC #: 7 -88c MEC#: 96 -0251 Submittal documents for the above referenced project have been reviewed for conformance with the applicable 1996 Oregon Specialty Codes and other applicable codes and standards. The following comments are noted: ask, °x's:�",'_.::...t u;a''. 4' �t ' s� .: _.. x , 1. Is this a replacement of existing equipment or a new installation? 2. Is the supply air tempered and, if it is, how is it done? 3. Provide the manufacturer's installation instructions for our review. A. What is the weight of the unit? B. How is the unit supported? 1. Provide an engineer's analysis of each structural member supporting the additional HVAC units [OSSC, Section 106.3.2]. 2. The attachment of permanent equipment (HVAC) supported by the building's structural components shall be designed to resist the total design seismic forces prescribed in Section 1603.2 of the Structural Specialty Code. Provide an engineer's design specifying attachment requirements [SSC Section 160.3.2 and OiviSC, Section 304.4]. Please submit three copies of revised submittal documents and a letter indicating your response to the above comments for review. Please call me at (503) 639 -4171 if you have any questions. Sincerely, 'Jim Funk PLANS EXAMINER i:lcitywide\pc7- 88c .doc 13125 SW Hall Blvd., Tigard, OR 97223 (503) 639 -4171 TDD (503) 684 -2772