HomeMy WebLinkAboutContract 2270~. _ ~ 2270
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City Of Columbia Heights March 5, 2010
590 40t" Avenue NE
Columbia Heights MN 55421 RE: Blower Motor Sound Issue
Attn: Linda Magee
NS/I Horwitz is pleased to propose the following to address the replacement of the blower shaft and other
parts on the blower that seem to be the cause of the noise in the roof top unit. This quote includes the cost
already incurred for trouble shooting the failure.
The scope of work includes the following:
a) Remove and properly dispose of blower motor pulley, sheave, bearings, wheel and shaft.
b) Furnish and install new OEM direct replacement parts
c) Properly check, test and start equipment for proper operation
d) Provide one year parts and labor warranty on installed equipment.
Estimated Total cost .................................................................$1,684.00
Note: This replacement isn't a guaranteed solution to the problem, but based on Teds evaluation it seems to
be the most likely cause of the sound. Other things can cause resonant sound in systems such as improper duct
sizing and poorly manufactured equipment housing issues, unfortunately these issues are not as easy to repair.
If this sound issue has developed lately, bearing and shaft failure ss most likely the cause. If this sound has
been an issue from the installation date then I would imagine it is more likely related to the duct or housing.
Excluded
1) Overtime
2) Other system. repairs
~' r ~~~ °, he ehy to furnish materi2~l r~ud lah~ - c. q~ilete in acconlanre with ahcive specification, for the sum uf:
Outlined ~t~nve .........................................................................................................~.O.II.
I"t~~'li~'~~NT to ba maefe as the work pur =resses to the value of 100 t `~r1 of a(( tv~n~k complete :aid material un j~51'i sh'e.
The entire at~~ount of cram~act to he paid within 3€1 d tys ai`ter cE~mpletiun.
All m Stu ial i, uaiantcctt to he as specified. All u~oil: to he crnnpldted in a v.orfem n~hke manner acc~ordircg
to st u~d<;rd lna~tices. Any alteration or ile6 lotion from above specipcatiune invoivin_ cots c~xtS will he
executed only upon written t5rdeis. trod will t~~e2~ome an extra ~~h.rrge over and :above the estimate. All
apieen nts r~mtit~gent upon strikes, accidents or delays be}~oml our cnnv'ol. Owner to rttnc tire, tornzado
sakd other n. ~ssary insurance. Ot~ir vvotl.ers aue iulty covered by t~%orkmen's Coanpcnsution n~tsurance
~c 61't_ ~~~ ~' ~ osal
1~tir above lniccs. spec ificnti~ns and c~mditipras ai~e s ittsfautury and um hereby ~xccc pted. Yon are
aEth€~Ee'a~d Gri do tine ;vor~ as spe 'iieiE. €~atrnc ~@ will he ~a1¢c~e rat;ELinedah~~ve.
ri . ", _„ ~ _ ~*
Data «f Acceptance ,. ~ t
Authnrizeti SignauEre. ~f
-- ---- - f
Rc~l~hie Skant~
Please note this proposal mzay he withdrawn by us if rust atecepted
within 3t~ claw.
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