Statement of Work REPLACE CHILLER 1 B104

Replace Chiller 1 in Building 104
Project No: 580-24-111
Scope of Work

Foreword
1.1

1.2

Contractor shall provide all labor, materials, tools, equipment, expertise, administration, supervision, and transportation as necessary to perform all work in accordance with the construction specifications provided, drawings, all documents attached to this contract, all terms and conditions of this contract, and this statement of work.
This document does not relieve the contractor of their professional responsibility to comply with all local and federal construction and environmental codes and to perform and complete a fully coordinated job.

General Project Description
2.1

2.2

This project involves the replacement of the existing inoperable 1,000-ton, 480V York Chiller 1 (CH-1) and its associated transformer, piping, valves, and controls in Building 104 at the Michael E. DeBakey VA Medical Center (MEDVAMC), Houston, Texas 77030. The new chiller will be a 1,000-ton, 4,160V, 3-phase, 60 Hz water-cooled centrifugal unit, configured to match the voltage and operational profile of the existing chillers in Building 104. Work includes, but is not limited to:
• Demolition of existing Chiller 1 and all associated isolation valves, piping, and controls
• Demolition of the existing exterior 12.47kV-to-480V pad-mounted transformer and all associated conduit and wiring
• De-energization of the existing 480V switchgear, which shall be left in place at the VA's direction for future use
• Procurement and installation of a new 1,000-ton, 4,160V water-cooled centrifugal chiller (Johnson Controls York Model YKOLO5K1CZH or approved equal), including isolation valves, chilled water and condenser water piping, soft starter, controls, and refrigerant (R-513A) • Installation of a new exterior 12.47kV-to-4,160V pad-mounted transformer, including associated medium-voltage cables, conduit, wiring, metering with current transformers (CTs), and surge protective devices. Transformer rating, metering, CT, and testing requirements shall be per the construction drawings and specifications. • Integration of the new chiller into the facility's existing Metasys Building Automation System (BAS), including control sequences coordinated with existing plant operations
• Replacement of the existing chilled water pump serving Chiller 1, including a new variable frequency drive (VFD) for pump speed control, per the mechanical drawings and specifications.
• Localized slab-on-grade trenching for new electrical conduit routing,