This synopsis is being provided to publish a requirement for the National Vehicle and Fuels Emissions Laboratory (NVFEL) of the Environmental Protection Agency (EPA) in Ann Arbor, Michigan which is seeking an experienced vendor to modify the air conditioning and air handling system for an existing weigh-room to meet requirements of the 2007 regulations for heavy-duty diesel fueled vehicles (40 CFR ?86.1312-2007). The present HVAC is a 5 ton CoolAir unit employing condenser/compressor cooling and flash vaporization humidification. Technical Specifications: 2.1 Structure 2.1.1 The existing structure shall be used with only nominal modifications for ducting alterations. 2.1.2 Existing suspended HVAC mechanical area shall be used for the installation of the new hardware. 2.1.3 Existing ducting shall be reused as feasible or newly supplied as necessary for the upgrade equipment. 2.2 Filtration 2.2.1 Existing HEPA room filtration media shall be replaced by ULPA filter media (ultra low particulate air filtration system; removal of 99.999% of particulates of size 0.12 microns or greater). 2.2.2 The weigh-room shall maintain its Class 1000 rating (1000 particulates of size > 0.3 microns; 350 particulates of size > 0.5 microns; and 0 particulates of size > 5 microns are the maximum numbers permitted per cubic meter of air). 2.2.3 The room must be maintained at a minimum of 15 Pa higher air pressure within the Class 1000 room as compared to the adjoining unclassified area. 2.2.4 The filtration system shall provide for air scrubbing for volatile organic compounds (VOCs), especially compounds in gasoline mixtures. 2.2.4.1 For dry-scrubbing of VOCs, the air filter system shall contain chemically impregnated media with the ability to reduce organic gases and odors in the intake and recycled air to a level < 1 ppm before it is introduced to the weigh-room. 2.2.4.2 The filtration system must be designed so that filter media is easily replaceable. 2.2.4.3 Filter media must have color change indicator or some other indicator to signal when the media needs to be changed. 2.3 HVAC System and Control 2.3.1 The control of the new HVAC System shall utilize an advanced Proportional/Integral/ Differential controller (PID). The system shall cool constantly with PID controlled reheat/preheat and constantly dehumidify with PID controlled humidification. The following are considerations for determining what HVAC Hardware shall be supplied: 2.3.1.1 The HVAC shall be a water-cooled system. 2.3.1.2 Electrical service and plumbing sources/drains are to be brought to the immediate HVAC area by EPA building maintenance or another contractor. 2.3.2 The HVAC shall be installed in the large soak area that is maintained at a temperature of 80 F with an absolute humidity of 5 grains per cubic ft. of dry air. The HVAC shall use a cooling coil employing provided chilled water maintained at a temperature of 39 to 45 F at a pressure of 10 to 20 psi. Target control parameters are as follows: 2.3.2.1 Temperature Monitor Resolution = 0.01 ?C Accuracy = ?0.2 ?C (with k = 2 at a 95% confidence interval) 2.3.2.2. Dew point Monitor Resolution = 0.1 ?C Accuracy = 1 ?C (with k = 2 at a 95% confidence interval) 2.3.3 Supplied Computer system to control the weigh-room's environment. Minimum requirements list for the computer are: 1. Pentium 4, 2 GHz cpu, 2. Operating software: Windows 2000 3. 17" monitor 4. 40 GB hard drive 5. CD burner for backup of data 6. 512 MB RAM 7. Ethernet ready 8. Four channel DAQ card 9. USB 2.0, RS232 serial ports 10. Keyboard, mouse, mouse pad, speakers 2.4 Environmental Control The HVAC system shall provided for the following: 2.4.1 Room and Balance Temperature 2.4.1.1 The environment shall be maintained at 22 ?C ? 3 ?C. 2.4.1.2 Temperature shall be sampled 1 per second and an unweighted 5 minute moving average of this data shall be graphically recorded. 2.4.2.3 The monitoring and control device shall be NIST traceable and accurate to at least ?0.2 ?C (k=2, 95% confidence). 2.4.2 Room Balance Dew point 2.4.2.1 The environment shall be maintained at a dew point of 9.5 ?C ? 1 ?C. 2.4.2.2 The dew point shall be sampled 1 per second and an unweighted 5 minute moving average of this data shall be graphically recorded. 2.4.2.3 The monitoring and control device shall be NIST traceable and accurate to at least ?0.25 ?C (k=2, 95% confidence). 2.4.3 A Barometer with serial data output will be provided by EPA for incorporation into the environmental control. 2.5 Fire Suppression ? Existing system to be used. No modification required. 2.6 Software - The vendor shall provide the following capabilities: 2.6.1 Offsite remote connection (outside of the room, but within the building) to the weigh-room's PC for monitoring and control of environmental parameters. 2.6.2 Password Security--Two levels of security 2.6.2.1 Administrator level of security shall allow access to change all parameters as well as view and print all data. 2.6.2.2 General user level of security shall allow access to view and print data, but shall not allow access to change parameters. 2.6.3 Graphical interface of Environmental Data (i.e. Temperature and Dew Point Data). 2.6.3.1 Graph displays shall be provided for Environmental data for date(s) chosen. 2.6.3.2 The default display shall show the present date's data since midnight. 2.6.3.3 Historical data from more than one date shall be selectable for display. Up to 30 consecutives days of data shall be able to be selected and displayed on one graph. 2.6.3.4 Zoom feature to pinpoint and display a single data value and its timestamp on each graph. 2.6.3.5 An overlay data feature shall be provided to display temperature or relative humidity data for two or more days on the same graph. 2.6.3.6 The system shall provide and display calculation of daily standard deviations, maximums, minimums, and means for all environmental data. 2.6.3.7 Customizable limit capability shall be that defined operating ranges for both the temperature and relative humidity. The chosen limits shall be shown on the graphs. The System Administrator can choose the limits. On-screen out of limit indication shall be provided, such as a flashing warning message. 2.6.3.8 Supplied software should allow Visual Basic or Oracle database to query for most recent 5 min. average values for the parameters listed in section 2.3.2. THE EPA HAS SET THIS ACQUISITION ASIDE FOR SMALL BUSINESS. The North American Industry Classification Code is 333415 with a small business size standard of 750 employees. A written solicitation, PR-CI-04-10302, is anticipated to be issued on Monday 2/02/04. It is anticipated the solicitation will be issued as a request for quotes (RFQ). All responsible small business sources may submit a quotation in response to the solicitation which shall be considered by the Agency. This procurement will be pursued using FAR Part 12 Commercial Acquisition methods and procedures. This notice of intent is not a request for competitive quotations. A site visit opportunity will be announced in the solicitation and this event is anticipated to be scheduled to take place on Tuesday February 10th at 1PM EDT at the installation site: US EPA, National Fuel and Vehicle Emission Laboratory, 2565 Plymouth Road, Ann Arbor, Michigan 48105. The Agency intends for this event to constitute the sole site visit opportunity for prospective offerors. The Agency is under no obligation to make accommodations for those unable to attend the site visit event as scheduled. Additional specifications, descriptions of the area and general layout, as well as figures and photos will be made available along with the solicitation. The Government will award a contract resulting from this solicitation to the responsible offeror whose offer conforming to the solicitation will be most advantageous to the Government, price and other factors considered. An offer must include the minimum requirements of the Statement of Work (SOW). In addition to price, the following factors will be used to evaluate the offeror's technical proposal: responsiveness to the SOW, previous technical experience, managerial ability, schedule and delivery. These factors shall be evaluated on a Best Value basis. Contract type will be firm fixed price.
