HomeMy WebLinkAbout15.D.1. Community Center Compressor Chillers
l5 \ D. \.
CITY OF SHAKOPEE
MEMORANDUM
To: Mayor and City Council
Mark McNeill, City Administrator
From: Mark Themig, Parks, Recreation, and Facilities Director
Meeting Date: July 5, 2005
Subject: Community Center Compressor Chillers
INTRODUCTION
On July 5th, City Council will be asked to authorize expending funds for replacing
compressor(s) on the Community Center chillers.
BACKGROUND AND DISCUSSION
I was notified on June 29 that at least one of four compressors on the Community
Center's chiller has failed. Our mechanical contractor, Uhl Company, is investigating the
cause of the failure and the extent of the damage.
As of today's deadline for submitting City Council memo's, Uhl Company has confirmed
that compressor #3 has burnt out, which grounded out the coil. This contaminated the oil
that is shared with compressors #1 on the rack. At this point, there appears to be
damage to compressor #1. However, Uhl has not been able to confirm the extent of the
damage.
To complicate matters, compressor #2 on the rack is tripping a 100 amp circuit. Although
the refrigeration technician does not believe that the compressor has failed, he has not
yet isolated the cause. Given the extent of the damage, the technician indicated that
lightning could be a possible cause.
We anticipate that the compressor replacement will cost over $7,000 per compressor.
(Compressor #2 failed in 2003 at a cost of $7,460 to replace.) However, we won't know
the actual cost until Uhl completes their analysis, most likely sometime later today
(Thursday). If the total cost is over $10,000, City Council authorization is needed. As in
the past equipment failures and emergency repairs, funding would come from our
operating budget.
Once Uhl has determined the extent of the damage and the repair costs, we will send
you out an update. I will be out of the office beginning July 1, so Josh Barrick will be
preparing a follow-up memo and forwarding it to you by email via the City Administrator.
If for some reason we are not able to finalize the costs prior to your meeting, Mr. Barrick
will have those for you at the meeting.
REQUESTED ACTION
City Council is asked to authorize repairs needed to the Community Center chiller, at a
cost to be determined at your July 5 meeting.