CI IVIBRIDGE300 Third A enue Northeast 763) 689- 3211

Minnesota's Opportunity CommunityCambridge, MN 55008 763) 689- 68ot FAX

www.ci.cambridge.mn.us

Special IVleeting of the Cambridge EDAMonday, February 05, 2018

Meeting announcement and AgendaCambridge City Hall, 300 3rd Avenue NE, Council Chambers

EDA MEETING WILL BEGIN AFTER CITY COUNCIL MEETING ADJOURNS

CITY COUNCIL MEETING BEGINS AT 3: 30 PM

Members of the audience are encouraged to follow the agenda.Agendas are available on the table outside the Counci/ Chambers door.

Cal to Order

Approval of Agenda ( p. 1)

New Business

A. Approve Repfacement of one Roof Top Unit on the City Center Malt ( p. 3)

Adjourn

Notice to the hearing impaired: Upon request to City staff, assisted hearing devices areavailable for public use.

Accommodations for wheelchair access, Braille, large print, etc. can be made by callingCambridge City Hall at 763-689- 3211 at least three days prior to the meeting.

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3A Approve Proposal for Replacement of One Roof Top Unit in the City Center Mall

February 5, 2018Author: Stan Gustafson

Reauest

Staff is requesting approval to replace one Roof Top unit in City Center Mall area.

Review

NAC Mechanical and Electrical Services has been our preferred contractor providing HVACservice for City Hall, Police, Fire Department and City Center Mall for many years. They have amaintenance agreement on all of our units and provide information and a quote if repairs orreplacement is needed. During recent maintenance inspection they encounter one unit ( unit 5)in need of repair or replacement, the unit has a cracked heat exchanger or in poor conditionsee attached map of roof top units). This roof top unit is one of three 5-ton units within the mall.

In the long- range Capital Improvement plan, we have been setting aside funds for replacementof all these units. We are also doing our best to preform regular maintenance with use of staffand NAC when larger issues happen. NAC provided two options one is to repair the unit andone be to replace the unit with a new energy efficient unit.

In the proposal it identified the current situation on this unit where there is a cracked heatexchanger. The life expectancy is about 15 years and all the roof top units on the City CenterMall exceed 15 years. We are aware of the age of these units but with proper maintenance we

are trying to extend the life of these units until replacement is needed.

Quote:

Repairs of current old unit 2,230.50

Replacement new Bryant 5 Ton 9,990.00

The timeline for these repairs or replacement is approximately one to finro weeks. Staff will workwith NAC and East Central Energy for any available rebates for the replacement of this unit.

n 205-47000-496I me from Mall Ca ital E ui me tFiscal Note: The funds wil co P q P

Recommendation

Staff recommends the EDA approve the quote submitted by NAC Mechanical & Electrical

Services to replace the unit for $ 9,990.00 and authorized the EDA President and ExecutiveDirector to sign the proposal with NAC Mechanical Electrical Services.

Attachments:

Proposal from NAC

Map of roof top units

r

3

Stephen Kotzmacher 651- 2553527 Direct

1001 Labore Industrial Court, Suite B 651- 230-8971 CeII

Vadnais Heights, MN 55110 skotzmacher@nac- hvac.com

january 23, 2018

Stan Gustafson

City of Cambridge, MN300 Third Avenue NECambridge, MN 55008

Re: Replace Rooftop Unit# 5

Current Situation: RTU# 5 has a cracked heat exchanger. Cracks in the heat exchanger could causethe flame to roll out. The cracked heat exchanger is producing higher than normal levels of carbonmonoxide.

Proposed Solution: NAC propose to furnish labor and materials to install one new 5- Ton Bryantpackaged rooftop heating and cooling unit.

Rooftop Replacement Service Includes:Coordination of all performed work with Client

Lock out and tag out equipment for safetyCrane Service

Disconnect rooftop unit that is connect to the curb from within the rooftop unito p q ncal does not incl de inside duct• ork v ork Am renairs or code reauired

y,a.: vill be done at time and matPrials rate L on nrior annr vaRemove and recycle( 1) roof top unitProvide and install ( 1) new roof top unit and attach to existing roof curb

o NA does assLme res, onsibilitv for the condition of the roof or the existincurb Any gpairs or code re ired un rades v^11 be done at t me and

materials rate LRon rior roval

Provide and install [ 1) new code required low leak economizerProvide and install (1) pan over flow switch

Reconnect gas per city code.

o :' o interior gas renairs or changp rP inc1L ed Any_rg airs or code reauired

n rades vrill be done at a time and materials rate upon nrior annrovalReconnect electrical per city code

AiA lilYPt' AT PIQ p1Cn1 rg,nairs or chan c 4. G incl ded Anv renairs or code

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annr_„ ovalStartu and testP

Cleanup of all job related materialsClient investment of:$9,990.00 ( Nine Thousand Nine Hundred Ninety Dollars and 00/ 100)

Nlechanical : Electrical = Fabrication Building Technology< 24 Hour Service4

Stephen Kotzmacher 651-255- 3527 Dired

1001 Labore Industrial Court, Suite B 651-230- 8971 Cell

i^ s Vadnais Heights, MN 55110 skotzmacher@nao-hvac.com

ss s

Notes:

1. Proposal based upon normal working hours.2. Any additional work beyond the above scope will be billed at time and materials rates upon

prior approval.

3. Proposal price is valid for a period not to exceed( 30) calendar days.

If you have any questions feel free to contact us anytime, or if you would like us to proceed pleasesign proposal and fax or e- mail back at your convenience.

Accepted by:

CITY OF CAMBRIDGE NAC MECHANICAL& ELECTRICAL SERVICES

Signature: Signature: B P"` t

Name: Name: Stephen Kotzmacher

Title: Title: Account Manager

Date: Date: 1/ 23/ 2018

Mechanical o Elec rical Fabrication Building Technology : 24 Hour Service5

Stephen Kotzmacher 651-255-3527 Direct

1001 Labo e Industrial Court, Suite B 651-230-8971 Cell

Vadnais Heights, f/ IN 55110 skotzmacher@nac-hvac.com

January 22, 2018

Stan Gustafson

City of Cambridge, MN300 Third Avenue NECambridge, MN 55008

Re: Rooftop Unit# 5 Heat Exchanger

Current Situation: RTU# 5 has a cracked heat exchanger. Cracks in the heat exchanger could causethe flame to roll out. The cracked heat exchanger is producing higher than normal levels of carbonmonoxide.

Proposed Solution: NAC propose to furnish labor and materials to install one new heat exchangerassembly.

Service Includes:

Coordination of all performed work with Client

Lock out and tag out equipment for safetyShut off gas to the unit

Remove access panels and electrical components

Remove heat exchanger and inducer motor

Install( 1) heat,exchanger assembly

Re- install existing inducer motor and gas

Startup and testCleanup of all job related materials

Thousand Two Hundred Thi Dollars and 50/ 100)Client base investment:$ 2,23iS( Tw Y

Notes:

1. Proposal based upon normal working hours.2. Any additional work beyond the above scope will be billed at time and materials rates upon

prior approval.

3. Proposal price is valid for a period not to exceed( 30) calendar days.

If you have any questions feel free to contact us anytime, or if you would like us to proceed pleasesign proposal and fax or e- mail back at your convenience.

Accepted by.

CITY OF CAMBRIDGE NAC MECHANICAL& ELECTRICAL SERVICES

Signature: Signature: $ p

Name: Name: Stephen Kotzmacher

Title: Title: Account Manager

Date: Date: 1/ 22/ 2018

Methanical= Electrical = Fabrication Building Technology e 24 Hour Service

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