2008-0956 Columbia Rim Mechanical2.pdf
City of Edmonds
PLAN REVIEW COMMENTS
BUILDING DIVISION
(425) 771-0220
DATE: January 26, 2009
TO: Mike Dawson
PO Box 1823
Lynnwood, WA 98046
FROM: Leif Bjorback, Assistant Building Official
RE: Plan Check: 2008-0956 Review #2
Project: Columbia Rim Warehouse Mechanical
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Project Address: 8128 240 St SW
During review of the plans for the above noted project, it was found that the following information,
clarifications or changes are needed. Please provide written responses as to where the changes can
be found on the plans, and submit revised plans/documents to Theresa Umbaugh, Senior Permit
Coordinator. You may choose to add any modifications to the plan sets that have previously been
submitted. Thank you.
1.Previous item 1. The manufacturers specifications for the furnace and heat pump were
provided as requested, however they do not include the name of the manufacturer, nor
any information about code-approved listing agencies (UL, ETL, AGA, etc). Please
provide this information within the manufacturers specifications.
2.Previous item 2. The Washington State Non-residential Energy Code compliance form
for Mechanical systems was received, however not all required information within the
form was provided. Please include the correct manufacturer name, the Outside Air or
Economizer information and the equipment efficiency information. This form can be
found online at www.neec.net/resources.
3.Previous item 3. Show the location of supply and return air plenums (main trunk lines)
clearly on the plans. It is still not clear on the plans how/where these are to be installed.
Because this is a type 5A building, it is critical to have this information on the plans.
Show how the ductwork is run from the furnace location so as not to penetrate the rated
floor system.
4.Previous item 4. This building is classified as Type 5A construction, and requires
protection of any penetration by duct or diffuser through a fire rated assembly. How are
the diffusers and exhaust fans going to be mounted? If they penetrate any ceiling
membrane, they will need a radiant ceiling damper shown on the plans, and
manufacturers specifications need to be submitted for review. IBC 716.6.2. If they
penetrate a fire-rated wall, they will need a fire damper as per IBC 712.3. The attic shaft
detail shown on the plans will need to meet a one-hour fire assembly rating. This most
commonly will involve a full stud framed wall with (1 layer 5/8 Type X) drywall on
st
floor restrooms have not been
both sides of the framing. Also, the ceiling fans in the 1
addressed for protection of the ceiling membrane penetration.
5.Previous item 5. Show the locations of all outdoor air inlets and exhaust outlets, their
proximity to each other and to property lines, building openings and height above grade,
as applicable. All air inlets and exhaust outlets need to meet the separation distances as
required by IMC 501.2: Environmental air exhaust shall discharge at least 3 feet from
property lines or from operable openings into the building, and 10 feet from a
mechanical air intake. Please indicate this on the plans.
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