USDA, Forest Service, North Central Forest Experiment Station, 1992 Folwell Avenue, St. Paul, MN 55108

Z -- AIR-COOLED CHILLER AND COOLING COIL SYSTEM SOL RFQ NC-99-11 DUE 063099 POC Debbie Krawczyk, 651-649-5209 The project is the supply and installation of a complete air cooled chiller and cooling coil system to provide supplemental supply air cooling for an existing air to air type heat recovery unit. Major components of the system include: a) Air-cooled scroll compressor chiller, nominal 10 ton; b) cooling coil to fit in existing "heatex" heat recovery unit; c) pipe, fittings, valves, insulation, hangers and other things necessary; d) power and control electrical wiring. EXISTING EQUIPMENT: The existing heat recovery unit is a "Heatex" air to air heat exchanger Model RHXC-1A-18-7120. Supplier was Climate Sales, Inc., Milwaukee, WI. Contractor is to verify space available for the cooling coil. APPLICABLE CODE AND STANDARDS: a) Uniform Mechanical Code; b) Uniform Building Code; c) National Electrical Code. DRAWINGS: Mechanical drawings are symbolic and diagrammatic and we intended to show the general scheme, equipment involved, and approximate locations of materials and equipment. Because of the small scale of the drawings, it is not possible to indicate all offsets, fittings an accessories, which may be required. Furnish all fittings, anchors, values and accessories as may be required. SUBMITTALS: a) Submit shop drawings and product data in accordance with the specifications; b) Submittals shall include the following: 1) dimensioned plan and elevation view drawings, required clearances, and location of all field connections. 2) Summary of all auxiliary utility requirements such as: electricity, water, compressed air, etc. Summary shall indicate quality and quantity of each required utility. 3) Single line schematic drawing of the power field hookup requirements, indicating all items which are furnished. 4) Schematic diagram of control system indicating points for field interface/connection. 5) Diagram shall fully delineate field and factory wiring. 6) Certification of factory run test of chiller unit signed by company officer. 7) Installation manuals. INSTRUCTION MANUALS: Upon substantial completion of this project, this Contractor shall furnish to the Contracting Officer two (2) copies of a complete manual fully describing the construction, installation, operation, and maintenance of each piece of equipment and system installed under this contract. Solicitation documents shall be available approximately 06/01/99 and may be requested by fax at (651) 649-5285, Attn: Procurement. Estimated cost is $25,000 -- $100,000. Posted 05/17/99 (W-SN332352). (0137)

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