Statement of Work

US Department of Agriculture (USDA)

Forest Service

Southern Research Station

Statement of Work
Laboratory (Site ID #02) HVAC Replacement
Santee Experimental Forest
3734 SC-402
Cordesville, SC 29434

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Project
Santee Experimental Forest Laboratory (Site ID #02) HVAC Replacement General Information

1.0 Scope of Work

• The Government requires the replacement of an existing 3-ton packaged heat pump system with a new, high-efficiency ENERGY STAR-certified unit that also satisfies FEMP federal purchasing requirements for energy-consuming products.
• The unit serves the Laboratory at the Santee Experimental Forest located at 3734 SC-402, Cordesville, SC 29434 (33.136543, -79.816041)
https://maps.app.goo.gl/BwsJDgTcSUj3JfbD7

2.0 Background

A heat pump (HP3) serving a portion of the 2480 GSF LAB building at the Santee Experimental Forest has failed and requires replacement. See Figures 1 and 2 for more information. No potentially hazardous materials are expected to be encountered during the execution of work under this Scope of Work.
Should the contractor encounter any additional suspected hazardous materials, stop work and contact COR immediately.
Contractor Requirements

3.0 Technical Requirements/Tasks

3.1 HVAC Equipment Replacement

Contractor shall furnish all labor, materials, equipment, tools, supervision, and incidentals to:

1. Demolition & Recovery

o Lockout/tagout; recover refrigerant per EPA rules; disconnect and remove the existing packaged unit, thermostat, and related wiring/condensate; dispose of materials per environmental rules.

2. Installation

o Provide and install one (1) new 3-ton ENERGY STAR-certified single packaged heat pump unit sized to existing ducts and electrical service; equipment must meet Section 3 efficiency requirements. o Electrical: new non-fused disconnect (as required), whips, OCPD verification, labeling; outdoor unit base/pad/anchorage per code and site conditions.
o Controls: install new programmable thermostat; integrate low-voltage wiring; verify staging/defrost/back-up heat (if present).
o All equipment shall be installed per AHRI/ASHRAE best practices to preserve rated SEER2/HSPF2 performance o Condensate management: proper trap, slope, cleanout; safety float switch; route to approved location; weather-seal penetrations; restore finishes.

3. Commissioning & Verification

o Start-up per manufacturer; verify airflow (CFM), external static, supply/return temps, and refrigerant