Department of the Air Force, Air Combat Command, 55 CONS, 101 Washington Sq Bldg 40, Offutt AFB, NE, 68113-2107

J -- CHILLER CONVERSION AND INSTALLATION SOL F25600-00-T-0119 DUE 052600 POC Laurie Techmeier, Contract Specialist, Phone 402-294-2804, Fax 402-294-0430, Email laurie.techmeier@offutt.af.mil -- Robert Luksa, Contract Administrator, Phone 402-294-6005, Fax 402-294-0430, Email WEB: Visit this URL for the latest information about this, http://www.eps.gov/cgi-bin/WebObjects/EPS?ACode=M&ProjID=F25600-00-T-0 119&LocID=601. E-MAIL: Laurie Techmeier, laurie.techmeier@offutt.af.mil. The purpose of this modification is to change the closing date of the solicitation to 26 May 2000, and to provide a revised statement of work. In addition, the requirement to balance, bake and dip the motor as mentioned in question 2 of the _questions and answers_ is deleted. The revised statement of work follows: Revised Statement of Work for Chiller Conversion and Installation (Revised 17 May 2000) Conversion of York International Chiller Model # YTK1K3E2-CTA to operate on refrigerant R-123. 1. Install a new York Turbogard 11 purge. Overhaul the compressor completely. Inspect and record all bearings and shaft clearances and if they are found not to be with within factory recommended specifications then replace with new. Replace all existing service valves on the chiller with OEM original valves. Install refrigerant clean up kit to include drier cores, eductor, interconnecting piping and valves. Change all gaskets that need to be replaced to be compatible with R-123. Change all the oil in the system. Charge with 1400 lbs. of R123 refrigerant and if it takes less then give the remaining over to the Air Force. Conduct a refrigerant leak test on all tubes and if any are found to be leaking then replace with new. Provide and install a Ventguard 11 relief valve in place of the existing bursting disk, and pipe to the outside to comply with code. Provide and install a single point refrigerant monitor for R123, and provide and install an exhaust system that will be activated when the refrigerant monitor detects a leak and provide and install a visual and audio signal outside and inside the chiller room. Conduct a factory start-up and check out all components. 2. Provide and install 8_ and 10_ steel pipe as required to connect chiller to existing piping. This installation will be welded connections and includes isolation valves on both entering and leaving condenser and chilled water. Also provide 4 thermometers and wells, 2 liquid filled pressure gauges with required valves, 4 additional half couplings for installation of the owners DDC system temperature sensors, chilled water and condenser water flow switches. Remove existing insulation back to the existing chilled water pump. Insulate all new chilled water lines including the existing chilled water line back to the pump. Insulation will be 1 12_ fiberglass. Provide and install a new 100-amp circuit breaker in the existing panelboard. Provide and install conduit and wire from breaker to chiller. Provide and install a non-fused disconnect at the chiller and wire to existing motor starter. Connect chilled and condenser water flow switches to the existing control panel. Posted 05/17/00 (D-SN455952). (0138)

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