P-2026-000031 Addendum ONE.pdf

BOARD OF COUNTY COMMISSIONERS

PALM BEACH COUNTY, FLORIDA

FACILITIES DEVELOPMENT AND OPERATIONS DEPARTMENT

CAPITAL IMPROVEMENTS DIVISION

PROJECT NAME: CROC Data Center Liebert - HVAC Replacement

PROJECT NUMBER: P-2026-000031

ADDENDUM NUMBER: ONE

DATE OF ISSUANCE: May 20, 2026

TO: Prospective Bidders

This addendum forms a part of the contract documents, modifies the original bidding documents and shall be as binding as if contained therein. Acknowledge receipt of this addendum in the space provided on the "Bid Proposal Form". Failure to do so may subject the Bidder to disqualification.

This Addendum consists of one (8) pages.

RESPONSES TO REQUESTS FOR INFORMATION:

1. FLORIDA MECHANICAL

Question #1: RFI 001 – Existing Drawings / As-Builts

The bid documents do not include mechanical, electrical, controls, fire alarm, structural, roof, or equipment layout drawings. Please confirm whether any existing as-built drawings, prior permit drawings, equipment schedules, electrical one-lines, refrigerant piping diagrams, controls diagrams, or fire alarm drawings are available for bidders to review. If not available, please confirm bidders are to price the work based solely on the site walk-through and written scope.

Response: Bid the project based on the existing site conditions and the scope of work

Question #2: RFI 002 – Like-for-Like Equipment Basis

The scope calls for removal and replacement of two existing Liebert HVAC systems “like for like,” and lists specific Liebert DS and MC condenser model numbers. Please confirm whether these listed model numbers are the required basis of design and whether substitutions/equal manufacturers will be considered. If equals are permitted, please provide minimum acceptable performance criteria, dimensions, electrical characteristics, controls requirements, refrigerant type, warranty requirements, and submittal review process.

Response: Liebert is the Basis of design; equipment information was provided by the distributor. Like for like is the intent and why Liebert is specified. Alternates need to meet existing and proposed criteria and include all mechanical and electrical modifications including all accessories not readily described or listed and shall be submitted for review prior to bidding.

Question #3: RFI 003 – Equipment Procurement Responsibility

Please confirm whether the contractor is responsible for furnishing the new

Liebert DS units, Liebert MC condensers, controls accessories, leak sensors, factory disconnects, condensate pumps, fan plenums, warranty packages, startup, and all required refrigerant, or whether any equipment will be owner-furnished.

Response: Contractor shall provide and install equipment and all accessories to provide a complete project.

Question #4: RFI 004 – Temporary Cooling Requirements

The scope requires temporary air conditioning to maintain the data center between 68°F and 72°F during replacement. Please provide the required temporary cooling capacity, acceptable temporary cooling method, preferred equipment locations, power source availability, condensate disposal requirements, and whether temporary ducting penetrations or temporary door/window openings will be permitted. Please also confirm whether the contractor is required to provide temperature monitoring/logging during the temporary cooling period.

Response: The intent is that one unit always remain operational, Additional cooling required should based off square footage of room and tonnage of existing individual equipment. Connections will be a means and methods and temporary ducting to be coordinated with WUD staff for approval.

Question #5: RFI 005 – Data Center Load and Redundancy Requirement

Please provide the current heat load of the WUD data center, IT equipment load, required redundancy level, and whether one existing unit plus temporary cooling is sufficient during each phase of replacement. Please confirm whether the room may ever operate with only one permanent

Liebert unit in service, or if temporary cooling must be fully operational before any permanent unit is shut down.

Response: Current heat load is not a factor for replacing the existing units since tonnage will be like for like. One unit and temp should be enough cooling for the area. The recommendation is that the temp unit be operational during the replacement process to compliment the existing unit.

Question #6: RFI 006 – Phasing / Shutdown Restrictions

The scope states one paired unit is to be removed and replaced at a time and the second unit cannot be removed until the first unit is fully operational.

Please clarify the allowed outage windows, whether work can occur after hours or weekends if required, and whether any shutdowns of data equipment, electrical panels, fire alarm devices, or BAS points will be permitted.

Response: Work schedule to be coordinated with the awarded contractor and WUD. At this time, work shall be completed during normal business hours , after hrs.

request are Soley for the contractor’s convenience and WUD is not paying after hrs. fees to install. The Data room is to remain fully functioning throughout the replacement process. The only Fire Alarm devices to be shut down temporarily are in direct conflict with the HVAC equipment (Duct

Detectors) All other required shutdowns are to be conveyed and requested to WUD as needed.

Question #7:

Response:

RFI 007 – Existing Unit Removal Path

Please confirm the approved path of travel for removing the existing indoor

Liebert units and installing the new units, including door sizes, access limitations, floor protection requirements, staging areas, and whether wall/door/frame removal or reinstallation is permitted if required.

All usual protections and precautions are to be adhered to. Due to the building design, there is only one path of travel in and out of the data room as viewed during the pre-bid. Measurements should have been taken and recorded during the pre- bid. Door/frame removal if necessary are to be included and completed professionally.

Question #8:

RFI 008 – Condenser Support / Structural Requirements

The scope lists new Liebert MC condensers with IBC/OSHPD seismic and wind/snow compliant bracing kits. Please provide existing condenser support details, roof/platform/slab construction, required wind design criteria, anchoring requirements, and whether signed/sealed structural calculations are required for the condenser anchorage/bracing.

Units are ground slab mounted and were viewable during the pre- bid.

Units are to be secured according to the manufacture’s recommendations and requirements and according to code, the additional hurricane strapping and anchor points may be reused as stated in the bid documents.

All new anchoring points should be accompanied by a SS structural engineer shop drawing when required by the AHJ.

Damaged cables and hardware shall be brought to the project managers attention prior to removal. Damage after removal will be the responsibility of the contractor to replace.

Question #9: RFI 009 – Hurricane Tie-Down Cables

The scope requires existing hurricane tie-down cables to be removed, stored at FMD, and reinstalled, with damaged components replaced like-for-like.

Please clarify who determines whether tie-down components are damaged or deteriorated, whether replacement components must be included in the base bid, and whether the existing tie-down system is code-compliant for the new condensers.

Response: Damaged cables and hardware shall be brought to the project manager’s attention prior to removal. Damage after removal will be the responsibility of the contractor to replace. The existing tie downs are in addition to the required manufactures anchoring of the units.

Question #10: RFI 010 – Refrigerant Piping Scope

The scope requires all new line set piping to be hard-drawn K-type copper with matching fittings. Please confirm whether all refrigerant piping from each indoor unit to each condenser must be replaced in full, or only portions modified for the new equipment. Please provide approximate routing, pipe sizes, total equivalent lengths, vertical rise, supports, penetration details, and whether existing pipe chases/roof penetrations may be reused.

Response: Total pipe replacements from AH to CU is not anticipated. Any new piping shall meet the equipment manufactures’ requirements.

Question #11:

Question #12:

RFI 011 – R-454B Refrigerant / A2L Requirements

The new units are listed for R-454B refrigerant. Please confirm whether the contractor is responsible for all A2L refrigerant code compliance, including refrigerant detection, ventilation, labeling, electrical requirements, manufacturer-required safety accessories, and any required permit documentation.

Yes

RFI 012 – Exterior Line Set Insulation and UV Coating

The scope requires all exterior line set insulation to be replaced and coated with two coats of UV protective paint. Please confirm required insulation thickness, insulation material, vapor barrier requirements, approved UV coating product, color, and whether the entire exterior line set must be recoated even where existing insulation appears serviceable.

New insulation shall be min Armor Flex Rubber sized appropriately to the pipe its protecting. UV coating shall be RCD Weather Barrier #15 White or better. Entire exterior of pipe insulation shall be painted, deteriorated insulation to be replaced.

Question #13:

RFI 013 – Electrical Disconnects and Feeder Reuse

The scope states the existing condenser disconnects and interior unit disconnects shall remain and be reused. Please confirm the existing disconnects, feeders, breakers, wire sizes, conduit sizes, MCA/MOP compatibility, available fault current, and whether the contractor is responsible for replacing any existing electrical components that are not code-compliant or not compatible with the new equipment.

Existing electrical is compatible with the like for like replacement.

Inspections should have been performed during the pre bid. Any code required changes to the design and or due to a different manufacturers equipment the contractor will be required to include any and all modifications to service the HVAC equipment

Question #14:

RFI 014 – Interior and Exterior Conduit Scope

The scope says existing condenser liquid-tight conduits shall be replaced with new ones and all new interior conduits should be liquid-tight or rigid aluminum. Please clarify whether all existing interior conduits and wiring are to be replaced, or only wiring/conduit required to connect the new units. Please also confirm whether rigid aluminum is required in any specific areas.

Only new as needed to replace the equipment, code shall dictate the type and size of conduit to be installed, when rigged is required it shall be

Aluminum.

Question #15: RFI 015 – Fire Alarm Shutdown Relays / Duct Smoke Detectors

The scope states two duct smoke detectors will be disabled by ESS, removed where needed, protected, and reinstalled by the contractor, and each AHU has two fire alarm shutdown relays to be connected to the new units. Please provide existing fire alarm drawings, relay wiring diagrams, ESS scope limits, required testing procedures, and whether ESS costs are by owner or contractor.

Existing fire alarm devices that are installed will be removed and reused.

A fire alarm contractor shall be used, with at least 2 years’ experience with

Notifier and FCI fire alarm systems. In the event Fire Rescue alters the existing sequence of operation regarding unit shutdown, the contractor shall reprogram the systems appropriately. A pretest shall be performed at the start of the project, and the devices shall be tested after reinstalling and shall be in pre-construction condition. Additional ESS requirements and/or information will be provided to the awarded contractor if necessary. All costs associated with the project are by Contractor.

Question #16:

RFI 016 – Fire Alarm Testing Responsibility

Please clarify who is responsible for scheduling, coordinating, witnessing, and paying for the pre-construction and final fire alarm duct smoke detector testing with ESS, and whether after-hours testing is required.

The Contractor shall notify the project manager, and he shall coordinate with all parties required for said testing. All fees are the contractor’s responsibility.

Question #17:

RFI 017 – BAS / Communication Integration

The listed equipment includes iCOM communication with BACnet MSTP and SNMP Ethernet capability. Please confirm whether the new Liebert systems are required to be integrated into the existing BAS/BMS, County network, SNMP monitoring, or alarming system. If yes, please provide point lists, network requirements, IP addressing requirements, responsible controls contractor, and whether integration is included in this bid.

New equipment will be local, no BAC net connection is part of this project.

Existing fire alarm relays provide shut down of the units, no integration of fire alarm with BAS/BMS.

Question #18:

RFI 018 – Controls Sequence of Operation

Please provide the required sequence of operation for the two Liebert units, including lead/lag, rotation schedule, failure alarm, temperature setpoints, humidity control requirements, reheat operation, emergency shutdown, and alarm notification requirements.

The project is provided with a programable wall mounted thermostat and factory furnished controls. The unit is started based on upon a time of day schedule and cooling set points. Lead lag requirements shall be provided to the winning bidder to program and the sequence of operation shall be determined by the user and the contractor shall program the final sequence as determined and requested. Upon sensing smoke, the smoke detector shall signal the building fire alarm system. The fire alarm system shall in turn activate a fire alarm shutdown relay which shall be interlocked with the starter or unit to shut off the fan and prevent unit operation while under a smoke detected condition.

Question #19:

RFI 019 – Condensate Piping / Auxiliary Drain Pan

The scope requires auxiliary stainless-steel drain pans under both AHUs and states existing condensate lines may be reused if suitable. Please provide required drain pan gauge, drain connection requirements, secondary drain routing, leak sensor placement, condensate pump discharge route, and criteria for determining whether existing condensate piping is suitable for reuse.

#14 Gauge Stainless Steel with welded corners and flow sensor, existing floor drain to be reused.

Question #20:

RFI 020 – Smoke Sensor Included with New Liebert Units

The listed Liebert DS units include a smoke sensor with unit alarm and shutdown. Please clarify whether this factory smoke sensor is separate from the existing duct smoke detectors, whether it must be connected to the building fire alarm system, and whether both factory smoke sensors and existing duct smoke detectors are required to remain functional.

Yes, it’s separate and shall not be connected to the fire alarm system yes all are to remain functional.

Question #21:

RFI 021 – Permitting / Design Professional Requirements

The scope requires contractor to submit for permit within five days of NTP if required. Please confirm whether a mechanical, electrical, fire alarm, structural, or low-voltage permit is required, and whether signed/sealed engineering drawings are required for permit. If engineering is required, please confirm whether it is to be included in the base bid.

Permits are required according to the AHJ and the responsibility of the contractor. It should be included in the bid.

Question #22:

RFI 022 – Certificate of Completion / Final Inspection

The scope requires a Certificate of Occupancy or Certificate of

Completion prior to final payment. Please confirm which certificate is required for this project.

Certificate of Completion

Question #23:

RFI 023 – Warranty Requirements

The scope requires a 12-month labor/material warranty plus extended 5th-year parts and labor warranty and extended 2nd through 5th-year compressor warranty. Please clarify whether the extended 5-year parts and labor warranty must be a factory-backed Liebert/Vertiv warranty, contractor-provided warranty, or third-party warranty. Also confirm whether preventive maintenance during the warranty period is included in this bid.

Factory Backed Liebert Vertiv Warranty is requested. No preventive maintenance agreement is requested.

Question #24:

RFI 024 – Startup Requirements

Please confirm whether factory-authorized Liebert/Vertiv startup is required. If yes, please identify whether startup must be performed by

Vertiv or a factory-certified technician, and whether startup reports must be submitted before substantial completion.

Yes, Liebert Vertiv start up is required, Reports shall be provided as they become available.

Question #25:

RFI 025 – Hazardous Materials / Environmental Conditions

Please confirm whether any asbestos, lead paint, mold, or other hazardous materials are known or suspected in the work area, pipe insulation, wall penetrations, roof areas, or existing equipment. If discovered, please confirm hazardous material abatement is excluded from the contractor’s base bid.

Non suspect materials anticipated, not included if uncovered.

Question #26:

RFI 026 – Work Hours / After-Hours Work

The scope states work is to be completed Monday through Friday, 7:00 a.m. to 5:00 p.m. Please confirm whether after-hours or weekend work will be allowed for shutdowns, crane/rigging, fire alarm testing, electrical work, or work that could affect data center operations.

TBD and as coordinated with WUD

Question #27:

RFI 027 – Responsibility for Existing Deficiencies

The scope states that unacceptable conditions not identified in writing before work starts become part of the contractor’s scope. Since no plans are provided, please confirm the contractor will not be responsible for hidden, concealed, undocumented, or inaccessible existing deficiencies that could not be reasonably identified during the pre-bid walk-through.

The contractor is not responsible for concealed unforeseen conditions.

Question #28:

RFI 028 – Bid Allowances for Unknown Conditions

Due to the absence of plans and limited ability to verify concealed conditions, will the County consider adding allowances for concealed electrical deficiencies, refrigerant piping routing conflicts, fire alarm modifications, structural anchorage upgrades, and temporary cooling modifications?

No allowances are needed unforeseen conditions are delt with via a properly executed change order.

Question #29:

RFI 029 – Liquidated Damages and Long-Lead Equipment

The schedule requires substantial completion within 150 calendar days from NTP and liquidated damages are $180/day. Please confirm whether schedule extensions will be granted for documented manufacturer lead times, factory startup availability, permit review delays, County review delays, ESS scheduling delays, or County badging delays outside the contractor’s control.

Yes, delays outside of the contractor’s control can be documented and a time extension be granted. Back up documentation is required for all lead time, permit delays.

PLEASE ACKNOWLEDGE RECEIPT OF THIS ADDENDUM NO. ONE (1), BY SIGNING

BELOW AND ATTACHING THIS ADDENDUM TO YOUR BID FORM. THIS

ADDENDUM MUST BE SIGNED BY AN AUTHORIZED AGENT AND ATTACHED TO

YOUR BID FORM, AND RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED

ON THE “BID PROPOSAL FORM”. FAILURE TO DO THIS MAY RESULT IN

BIDDER’S DISQUALIFICATION.

ACKNOWLEDGMENT OF RECEIPT: _____________________________________

END OF ADDENDUM -1