Addendum 1 18387.pdf
PDF 103 KB Posted
- Solicitation number
- RFQ-171-190000000252-3
- Issued by
- Benzie County, Michigan
About this file
Addendum No. 1 is issued by Byce & Associates, Inc. for the State of Michigan's Coldwater Michigan State Police Post Boiler project located in Coldwater, Michigan. The addendum, dated March 15, 2019, provides clarifications and responses to requests for information (RFIs) for a project involving mechanical system upgrades at a state police facility. The bid date is set for March 20th, 2019, with the Department of Technology, Management, and Budget (DTMB) as the owner. Key project elements include modifications to the existing heating systems, installation of a new DDC (Direct Digital Control) system, replacement of ceiling tiles, and preparation for new gas service from Consumers Energy.
The addendum addresses several technical details, including the control of existing radiant heat, cabinet unit heaters, and unit heaters. Specific clarifications include requirements for outdoor duct insulation, domestic water pipe insulation specifications, and ceiling tile replacement. The project involves integrating new mechanical systems with existing infrastructure, with particular attention to heating control sequences and system compatibility. The addendum provides guidance on subcontractor involvement, noting that while the main contract holder was required to attend a pre-bid walkthrough, subcontractors were preferred but not mandatory to attend.
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Other files
| File | Type | Posted |
|---|---|---|
| PreBid Sign In 18387.pdf | ||
| Advertisement 18387.pdf | ||
| Drawings 18387.pdf | ||
| Specifications 18387.pdf |
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Text version
Byce & Associates, Inc.
Addendum No. 1 __
March 15, 2019
Project:
State of Michigan
Coldwater Michigan State Police Post Boiler
Coldwater, Michigan
Owner:
State of Michigan
DTMB
Index: 551/18387.SMD
Engineer:
487 Portage Street
Kalamazoo, Michigan 49007
(269) 381-6170
Project No. 18100291
Bid Date: March 20th, 2019
The Contract Documents shall be amended and/or revised by Addendum hereinafter specified and all Work affected by Addendum shall be included.
Except as may be otherwise described, labor and material for the Work hereinafter specified shall conform to all requirements of the Original Contract Documents.
Addendum No. 1 Coldwater State Police Post
Coldwater, Michigan
GENERAL
1. Release of sign in sheet from pre-bid walkthrough.
2. RFI: The documents indicate that this project has a mandatory pre-bid walkthrough for all bidders. Does this include the subcontractor chosen for the DDC System?
a. Contract holder had to attend walkthrough to be considered. Subcontractors did not need to attend but would be preferred.
3. RFI: New gas service is required as part of the project. Please provide utility.
a. Gas company is Consumers Energy.
4. Clarification: Ceiling in main corridor and restroom with fan coil above are going to be removed for majority of work. It is the request of the owner that at minimum that all of these ceiling tiles be replaced. Any other damaged ceiling tiles are to be replaced during construction.
MECHANICAL SYSTEMS
M1. RFI: The sequence of operations for the new modulating dampers state that the radiant heat shall be the first stage of heat where available. The building has fourteen radiant/finned tube heaters that are currently controlled by local Danfoss valves. Will the existing valves need to be replaced with valves controlled by the new DDC system?
a. Local temperature control valves at radiant heat to remain. Boiler is to be enabled to heat the building before the gas heating in the air handling unit.
M2. RFI: The building has two existing cabinet unit heaters. The sequence of operations indicates control for cabinet heaters, but no new ones are being installed. Will he existing ones need to meet the sequence of operation and be part of the new DDC system?
a. Yes cabinet heaters are to be modified to include new valves for DDC control.
M3. RFI: The building has three existing unit heaters, one shown on print M410 and two others not shown on the print located in the garage. The sequence of operations indicates control for unit heaters. Will the existing ones need to meet the sequence of operation and be part of the new DDC system along with the three new ones?
a. The units in the garage are being removed and not replaced. The remaining unit heater is to be added to the DDC control system.
M4. RFI: Clarify outdoor duct jacket for insulated duct.
a. Outdoor duct to be constructed with Thermaduct or to be wrapped in corrugated aluminum jacket to make water tight.
M5. RFI: Provide clarification on domestic pipe insulation.
a. Domestic hot water and return to be 1” preformed pipe insulation with polymer film jacket. Domestic cold water to be ½” preformed pipe insulation with polymer film jacket.
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