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04-12-21-R
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04-12-21-R
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4/8/2021 2:52:22 PM
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[Type here] <br />Change Order <br />Owner/ Contractor:______________________________________________ <br />Project Address:____________________________________________________________ <br />Change Order #:_______________________________ <br />Items included Change Proposal Price: <br />New Building Outdoor Air Temp/Humidity: Johnson Controls will install and program a new building <br />master outdoor temp and humidity sensor on the north wall of the building. This will be wired to the new <br />heating system controller in the boiler room, and mapped to the other systems on the BAS. The current <br />outdoor air sensors are in poor locations and are not accurate. Adding a humidity sensor will also allow <br />better economizer determination to prevent bringing humid air into the building. <br />AHU-1 Supply/Return Fan Status: Johnson Controls will connect supply and return fan statuses to the <br />respective VFD run status contacts. Currently there are no status points on the BAS for these fans, and <br />our new programming requires status inputs for the control loops to function. It will also be beneficial for <br />the operator to see actual fan status points for the fans for trending and alarming. <br />AHU-2 Return Fan Status/Command: Johnson Controls will install a current relay in the AHU-2 return <br />fan starter to monitor fan status. Currently there is no status point on the BAS for this fan. We will also <br />give the return fan its own dedicated start command. Currently it is landed on the supply fan command <br />output. This will also be beneficial for the operator to see an actual return fan command and status point <br />for trending and alarming. <br />Electrical Subcontractor Cost for Control Wiring <br />Scope Exclusions: <br />•Premium Time <br />Not Valid Until Signed by Owner/General contractor and subconstractor(Air Express Inc) <br />The Original Contract Sum $_____________________ <br />Contract Sum prior to above change order(previous change order amount included and will be <br />counted a prior net sums) <br />The contract sum will be increased by this amount <br />The new contract sum including this change order is <br />Does this change the compeltion date ? Yes No <br /> If yes please specify new completion date ___/___/______ <br />City of Arden Hills <br />1245 Hwy 96 Arden Hills, MN 55112 <br />3 <br />268,560.00 <br />268,_____560.00____ $ ____________ <br /> $ 6,221.00 <br />__274,_____781.00___ $ ____________ <br />x <br />_____________________
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