Attach_1_-_Specification_Addenda_0002.docx
DOCX document 1 MB Posted
- Attached to
- Knife River, Replace Visitor Center HVAC System Federal contract opportunity
- Solicitation number
- 140P6321Q0050
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Sol_140P6321Q0050_Amd_0002.pdf | ||
| Sol_140P6321Q0050_Amd_0001.pdf | ||
| Attach_1_Specifications.pdf | ||
| Sol_140P6321Q0050.pdf | ||
| Attach_3_DOL_WD.pdf | ||
| Attach_2_Drawings.pdf | ||
| Attach_4_Exp_Q.xls | XLS spreadsheet |
On GovTribe
Work with this file on GovTribe
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Knife River Indian Villages Stanton, ND Replace HVAC System in Visitor Center 140P6321Q0050 Amendment 0001
Specification/Drawing Addenda:
DRAWINGS
SHEET M1 – MECHANICAL FLOOR PLAN: Add the following note 10. To the HVAC General Notes to read, “FOR RECONNECTION OF ELECTRICAL SERVICE TO THE EXISTING ELECTRICAL PANEL FOR NEW UNITS AHU-1 AND AHU-2, THE CONTRACTOR SHALL INSTALL TWO (2) NEW 208V 3P-4W 100A WIRES CIRCUIT BREAKERS WITH NEW #3 AWG COPPER (Cu) FROM AHU’S TO PANEL. EXISTING PANEL HAS OPEN CAPACITY FOR THE NEW BREAKERS AND IS LOCATED DIRECTLY ADJACENT TO THE NEW UNITS AHU-1 AND AHU-2 ON THE SOUTH WALL OF THE MECHANICAL ROOM. RE-USE OR REPLACEMENT OF CONDUIT FOR WIRING FROM UNIT TO PANEL SHALL BE AT THE DETERMINATION OF THE CONTRACTOR.”
SHEET M2 – DETAILS AND SCHEDULES: On CRU UNIT SCHEDULE (DX COOLING/ELECTRIC REHEAT)(BASE OF DESIGN), GENERAL DATA, MODEL NUMBER, revise the schedule as follows:
· Manufacturer: Revise to read ‘LIEBERT OR APPROVED EQUIVALENT’
· Model Number: Delete model number noted ‘MT036HE1Y052L00P PFD0AYL1’ and replace with the following: ‘MINI-MATE 2 SERIES WHICH PROVIDES A MINIMUM 3.6kBTUh TOTAL NOMINAL CAPACITY’.
· Maximum Operating Weight (LBS): Delete ‘400’ and replace with ‘500’.
PROJECT SPECIFICATIONS
ITEM 1 – DESCRIPTION OF WORK, PART 1.2 B: Revise the paragraph as follows:
B. Work consists of: The existing HVAC system consists of two independent systems: one system is for the Curator Room only; and the other system is rest of the Visitor Center.
In the latter, the work is (a) to remove the existing major units (i.e., two AHUs and two CUs), (b) install and reconnect the new major units (see Sheet M-2 of the drawing set) to the existing duct work. Work shall include the pipe installation, duct work fabrications, electrical connections, and system controls and programmable thermostats installation.
In the former, the works is (a) to remove the existing (Liebert MME 024-PH1) system and (b) install and reconnect the new 36 KBTU/h Liebert Mini-Mate2 ceiling-mounted system or approved equivalent manufacturer’s product line (see Sheet M-2 of the drawing set). Work shall include the pipe installation, duct work fabrications, electrical connections, and system controls and programmable thermostats installation.
The new units shall exceed the minimum Seasonal Energy Efficiency Rating (SEER). Commissioning shall include a test and balance (TAB) to meet temperature and relative humidity stated by NPS Museum Code and Standards. The system shall meet all current codes and standards; e.g., NEC 70 2020 edition.
SECTION 238123.13, PART 3.2 CONNECTIONS: Revise Part 3.2, Connections to read as follows:
| 3.2 | CONNECTIONS |
| A. | Piping installation requirements are specified in other heating, ventilating, and air-conditioning Sections. Drawings indicate general arrangement of piping, fittings, and specialties. |
| B. | Where installing piping adjacent to computer-room air conditioners, allow space for service and maintenance. |
| C. | Water and Drainage Connections: Comply with applicable requirements in Section 221116 "Domestic Water Piping."<DELETE PORTION OF SENTENCE> Provide adequate connections for water-cooled units, condensate drain, and humidifier flushing system. |
| D. | Refrigerant Piping: Comply with applicable requirements in Section 232300 "Refrigerant Piping." <DELETE SENTENCE> Provide shutoff valves and piping. |
SUPPLEMENTAL PHOTOGRAPHS
See the following supplemental photographs of the mechanical room to house AHU-1 and AHU-2 as well as curatorial storage room location of ceiling mounted CRU-1.
Mechanical Room looking south: Existing Air Handling Units and Electrical Panel.
Curatorial Storage Room looking west: Existing CRU to be removed and replaced with new CRU-1. Note bar joist and unit mounted to uni-strut structural configuration under steel pan/concrete ceiling.
image1.jpeg image2.jpeg
File details come from the government source that posted it. Updated .