SAM #12FPC322Q0049

Replacement and Installation of Desiccant Dehumidifier System for USDA Tucson Plant Materials Center

This opportunity is for the replacement of a desiccant dehumidifier system at the USDA NRCS Tucson Plant Materials Center's walk-in seed cooler. - Government Buyer: - US Department of Agriculture (USDA), Natural Resources Conservation Service (NRCS), FPAC Business Center Western Section, Tucson Plant Materials Center - OEMs and Vendors: - Munters (specified as the performance benchmark: "Munters HC-150 equivalent or better") - Bally Scientific (existing walk-in cooler) - Ebac Industrial (existing dehumidifier: Model DD400) - Products/Services Requested: - 1 energy-efficient desiccant dehumidifier system (minimum 150 cfm airflow, size ≤30x25x25 inches, ≤80 lbs, must maintain 25-40% RH) - 1 set of control wiring and new humidistat controller (properly calibrated, connected to 240V panel) - 4 portable hygrometers for humidity measurement - Removal and disposal of existing Ebac Industrial DD400 dehumidifier and associated materials - Installation of new dehumidifier system, ducting, wall penetrations, mounting, and acceptance testing - Project management, coordination, and provision of a project plan - Unique/Notable Requirements: - New dehumidifier must be equivalent to or better than Munters HC-150 - System must maintain 25-40% relative humidity continuously and operate reliably in Arizona's climate - 10-business-day operational acceptance test required; system must achieve 99% availability over six months with mean time to repair under 48 hours - Project value is under $35,000 and is a small business set-aside - Work must minimize disruption to the cooling process and be completed within 60 calendar days of notice to proceed

Description

The USDA Natural Resources Conservation Service (NRCS) Tucson Plant Materials Center is in need of a replacement Dehumidifier Unit for the walk-in seed cooler. This cooler operates at a stable temperature of 35ºF and a relative humidity range of 25¿40 percent, conditions supported by both an air¿conditioning condenser unit and a dedicated desiccant dehumidifier system.

Work includes the acquisition and installation of a desiccant dehumidifier that meets all our requirements, including necessary mounting brackets, air vents, proper insulation, and electrical parts. The dehumidifier shall be placed inside the walk-in cooler in an unobstructive place where access is easily permitted and installed without disrupting the cooling process. Work also includes the removal of older dehumidifier installed equipment, ducts, and other unnecessary associated parts. The contractor shall provide all personnel, equipment, parts, tools, supervision, and other items and services necessary to install new equipment. Magnitude of construction: less than $35,000.

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