Please submit any questions regarding this project via e-mail to purchasing@duluthmn.gov. Deadline for question sis Tuesday, April 12, 2022. Responses will be issued as an addendum to this solicitation. A certified check or bank draft, payable to the order of the City of Duluth, or a satisfactory bid bond executed by the bidder and acceptable surety, in an amount equal to five per cent (5%) of the total bid must be submitted by the bid deadline No alternatives to the specification will be considered unless specifically requested. Erasures or other changes to the bid must be initialed and dated, however no special conditions shall be made or included in the bid form by the bidder. The City of Duluth reserves the right to split the award where there is a substantial savings to the City, to waive informalities and to reject any and all bids. Price may not be the only consideration for bid award. Bids must be firm for a minimum of 60 days The City of Duluth is an Equal Opportunity Employer. Contractor shall comply with all applicable Equal Employment Opportunity laws and regulations. Mechanical:
1. Demo and removal of items required to install the new system
a. Prior to discarding any equipment removed from a building, the building maintenance
manager and DES project manager must grant approval
b. Contractor is responsible for disposal of any waste generated during the project
c. Contractor shall always maintain a clean and orderly work area
2. Asbestos abatement is outside this Scope of Work
a. DES will schedule and contract this work separately
b. Mechanical contractor to provide schedule so that this work can be done without
interference
c. Mechanical contractor to designate the amount of abatement required for the tie in
of the new system
d. No asbestos is expected during this project
3. Installation of new hot water supply and return piping on the secondary side of the system:
a. Shall be in accordance with State code and the Division 23 HVAC Specifications
attached to this Scope of Work
4. All piping needs to be labeled with color coded labels after insulated with the following:
a. Flow direction
b. HHW (heating hot water) Supply/Return
Insulation:
1. All piping to be covered as per Division 23 HVAC Insulation Specifications
a. District piping temperature will range from 160F to 215F
b. Secondary piping temperature will range from 80F to 200F
2. Pipe running through the theater portion of the building will require matte black
insulation covering to camouflage the heating pipe within this space
3. Pipe above the roof:
a. FoamGlas with Pittwrap and covered with aluminum jacketing
Electrical:
1. Electrical and control work is out of scope and will be contracted separately by DES
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