Addendum 1.pdf

COMMONWEALTH OF KENTUCKY

DEPARTMENT FOR FACILITIES AND SUPPORT SERVICES

DIVISION OF ENGINEERING AND CONTRACT ADMINISTRATION

INVITATION TO BID NO: RFB-256-23

FOR: HVAC System Upgrades McCracken Regional Juvenile Detention Center Paducah, Kentucky

DATE: May 30, 2023

RFB-785-2300000746

ADDENDUM NO. One (1)

BIDDER SHALL CONFORM TO THE FOLLOWING CHANGES AS SAME SHALL BECOME BINDING

UPON THE CONTRACT TO BE ISSUED IN RESPONSE TO THIS INVITATION TO BID.

Item 1: Refer to the addendum below distributed by Lynn Imaging for all additions, deletions, and/or changes to specifications and/or drawings.

Item 2: The bid date has been extended to June 8, 2023, 2:00 PM, Eastern Time

END OF ADDENDUM

Invitation to Bid No. RFB-256-23 For: HVAC System Upgrades McCracken Regional Juvenile Detention Center Paducah, Kentucky

Kyla Satterly, Statewide Procurement Analyst II Division of Engineering and Contract Administration

HVAC SYSTEM UPGRADES

MCCRACKEN REGIONAL JUVENILE DETENTION CENTER

PADUCAH, KENTUCKY

ACCOUNT NO. 523-C9T4-MK06-00

MARCUM NO. 21635

ADDENDUM 1.00

MAY 30, 2023

The following Addendum Items shall be made part of the Contract Documents for the referenced project.

1.01 Refer to Drawings H0.1, H0.2, H0.3, H0.4, and H0.5. Omit all references to

KCTCS Requirements. The Controls Systems shall comply with all Department of Juvenile Justice Requirements and shall meet CEMCS standards for point naming conventions and standards. Provide control system that is fully BACnet.

The Control System information shall be sent the Division of Facility Efficiency and shall be fully integrated into the existing CEMCS system. The Contractor may omit the local JACE if the BACnet frontend is capable of directly communicating with the CEMCS system.

1.02 Refer to Drawings H0.1 and H1.1. Contractor shall furnish and install CT meters to monitor operation of Package Terminal Heat Pump (PTHP) units. Provide status of operation on user interface.

1.03 Refer to Drawing H0.3 – Hydronic Pump Minimum Control Points List. Omit references to Variable Speed Pumping. Pumps shall be constant volume.

1.04 Refer to Drawings H1.1 and H2.1. Contractor shall furnish and install 3-way control valve for hot water unit heaters located in the Sallyport and in Mechanical

119. Temperature Controls Contractor shall furnish actuator and required controls.

1.05 Refer to Drawings H0.3 – Multizone Dampers and Zone Controls Minimum

Control Points List. Update points list and sequence of operations to omit separate Hot Deck and Cold Deck Damper Actuators. The unit has a total of nine (9) thermostatic zones. The Hot Deck and Cold Deck Dampers are linked together. The Damper Actuators for each zone shall modulate to maintain space temperatures in the zone based on the zone temperature sensor and the discharge air sensor for the zone. All zones shall operate constant volume.

Each Zone shall be provided with an unoccupied override for extended periods.

During unoccupied periods, the dampers shall modulate to 50% open and zone temperatures shall be setback to 82°F in cooling mode and 55°F in heating mode.

1.06 Refer to Drawings H0.4 and H1.2. Provide control points for two (2) return air fans, (2) return air dampers, and (2) exhaust air dampers associated with the Air

Handling Unit.

1.07 Refer to Drawing H0.5 – HVAC Lead Sheet. Contractor shall connect back to all existing Smoke Evacuation Control Points and Controllers. The Building

Management System sequence shall include monitoring the fire alarm control system, upon receiving a signal from the Fire Alarm Control Panel, the Return Air

Dampers Shall close, the exhaust air dampers shall fully open, the outside air dampers shall fully open, and the supply and return fans shall be commanded

on. The hot water valve shall modulate to maintain 60°F leaving air temperature.

1.08 Refer to Drawing H0.5 – HVAC Lead Sheet. Contractor shall provide connections to existing Sewage Grinder Pump Alarms.

1.09 Refer to Drawing H0.5 – HVAC Lead Sheet. The Contractor shall provide connection to existing Kitchen Make-up air unit. The Contractor shall monitor the supply air fan status via air flow switch or CT meters. The discharge air temperature shall be monitored. If the discharge air temperature drops below

50°F for more than 15 minutes, an alarm shall be sent to the Building

Management System User Interface.

1.10 Refer to Drawing H0.5 – HVAC Lead Sheet. Contractor shall provide connections to existing temperature sensor for Server Room. If the space temperature as sensed by the zone sensor rises above 80°F (adjustable) an alarm shall be sent to the User Interface.

1.11 Refer to Drawing H5.1 – Condensing Boiler Schedule and Section 235216.

Update the Manufacturers List to include “Laars”. Final approval will be reserved for the Shop Drawing review stage.

1.12 Refer to Drawing H5.1 – Condensing Boiler Schedule and Section 235216.

Update the Manufacturers List to include “Patterson-Kelley”. Final approval will be reserved for the Shop Drawing review stage.

1.13 Refer to Drawing H5.1 – Hydronic Pump Schedule and Section 232123. Update the Manufacturers List to include “Grundfos”. Final approval will be reserved for the Shop Drawing review stage.

Attachments:

1. None

END OF ADDENDUM 1.00