4a SOW Replace - Upgrade CRAC Units B90131 - 03-March-2025.pdf

Statement of Work

1. GENERAL

1.0 The following Statement of Work is for an HVAC IDIQ task order to be accomplished by the contractor in accordance with the requirements of the Hurlburt Field Base Master Specification (HBMS), and the HVAC IDIQ Contract.

1.1 The contractor shall provide all plant, labor, materials, equipment, design, and supervision necessary to “Replace / Upgrade Two CRAC Units in Server Room, B90131”. All work shall be done in accordance with the requirements contained in the Hurlburt Field Base Master Specifications, HVAC IDIQ Contract and the Statement of Work. Contractor shall provide a projected schedule of all submittals, and a project construction schedule upon award of the contract.

1.2 Contractor and all subcontractors must fully comply with specification section 01 00 00, General Requirements. All forms referenced, notarized statements, construction data worksheets, contractor progress reports, contractor compliance statements, etc., must be provided to the contracting officer at the appropriate time as indicated within the specification.

1.3 Contractor should refer to Hurlburt Field Base Master Specifications, for guidance on the documentation needed to fulfill the requirements of the HVAC IDIQ task order.

1.4 A Cost Estimate shall be accomplished using the 50-division format. Non-pre-priced items should be identified as such on the estimate.

1.5 Contractor shall obtain all necessary permits and work clearances, including underground utilities PRIOR to start of work.

1.6 Contractor shall coordinate work closely with Contracting Officer or representative, as well as the CE Project Manager on all issues pertaining to work phasing, scheduling, planning, and execution.

Title: Replace – Upgrade Two CRAC Units in Server Room, B90131

Date: 03 March 2025

1.7 The Contractor shall provide required temporary heating and cooling of spaces, as work proceeds.

1.8 Contractor should consider and provide plan for phasing of project, if phasing is determined as feasible.

1.9 As-built drawings are limited, and all building systems, equipment, and conditions must be field verified, prior to design and construction.

1.10 The contractor will provide the names of all workers to the building manager and security officials of the building.

1.11 All workers from the contractor and sub-contractors will be informed on the specific security issues and operating practices of the building and will comply.

Guidance will be provided for work in secure areas and the requirements for escorts during work within the facility.

1.12 Any work done after duty hours, weekends or holidays will be coordinated with requestor and building manager.

1.13 All close out documents (see section 01 70 00) must be submitted to contracting officer prior to final inspection. Government will withhold 3% of contract sum until project is complete and has been accepted by the Government.

2. LOCATION

2.0 The project site is located on Hurlburt Field, Florida at building(s) 90131.

3. MATERIALS

3.0 Contractor shall refer to the Hurlburt Field Base Master Specifications and HVAC IDIQ, and the Statement of Work, for guidance in selecting appropriate materials to accomplish the work.

3.1 Contractor to provide submittals for all materials.

3.2 If the Contractor suggest the use of a specific material not listed in the specifications, which the Government might consider to lessen the cost or increase the utility or appearance of the facility, the material should be listed under “Alternatives”, as described in the HVAC IDIQ contract, and the Statement of Work.

4. PROJECT ELEMENTS

4.0 The project will contain, but is not limited to the following elements.

4.1 Demolition

4.1.1 Remove and replace raised flooring panels as required for the disconnecting and installation of water and electrical lines feeding existing (2) CRAC units listed below and as shown on drawings provided.

4.1.2 Isolate and disconnect all associated water lines from existing (2) CRAC units.

Remove and dispose of water lines up to the point of connection to vertical Chilled Water (CW) lines between the existing CRAC units, and Hot Water (HW) lines located under floor. Only remove piping as needed, to enable direct routing of connection to new CRAC units.

4.1.3 Remove and dispose of humidification water lines up to connection to main water lines under floor.

4.1.4 Remove condensate piping, as needed, to enable direct routing of connection to new CRAC units.

4.1.5 Disconnect electrical lines feeding existing (2) CRAC units. Save for reconnecting (2) new CRAC units, if lengths and conditions permit.

4.1.6 Disconnect fire safety and DDC electrical controls connections, and save for reuse.

4.1.7 Remove (2) CRAC units from inside Server Room, as shown on the provided existing equipment drawings, including all connections of inlet and outlet duct connections to existing raised floor supply plenum and tiled ceiling return plenum.

4.1.8 Provide and install dust barrier while removing and replacing equipment to protect Server room cabinets and electronics, as needed.

4.2 Mechanical/Electrical

4.2.1 Provide and install (2) new CRAC units and associated water lines. CRAC units with be replaced with new Liebert brand, or equal, direct drive units, as specified in the attached reference drawings, schedules, and documents. New units shall be anchored to existing flooring using vibration isolation pads.

4.2.2 Contractor to investigate and consider space constraints of the building and server room, when designing and planning CRAC unit specifications and installation. It may be necessary to provide modular design and installation of CRAC units, to accommodate physical constraints.

4.2.3 Install and connect new CW and HW lines, along with humidification tubing and condensate lines, to new CRAC units. Provide adequate support for new lines, as required. Install hand operated isolation valves under floor, within 3 ft. of connection to CRAC units, or as constraints permit.

4.2.4 Flush water lines and clean in-line strainers, as needed.

4.2.5 Leak test new water line new piping and connections, reseal, and insulate. New water lines on interior of building will be insulated with closed cell insulation.

4.2.6 Connect new CRAC units to existing raised floor supply plenum and tiled ceiling return plenum. Supply transitions, as required to accommodate new CRAC units.

Repair openings in raised floor and ceiling, not covered by new CRAC units. Test for leaks, seal, and insulate exposed connections per (HFBMS) Base specifications.

4.2.7 Install new floor and ceiling tiles, as needed.

4.2.8 Reconnect fire safety and DDC electrical controls connections, and test functionality at building and in coordination with DDC Controls Shop.

4.2.9 Reconnect power to each CRAC unit, and ensure proper operation of new systems and associated peripheral equipment.

4.2.10 Seal any new wall penetrations and re-seal existing penetrations used for installation of components.

END OF STATEMENT OF WORK