Department of the Air Force, Air Combat Command, 2 CONS, 841 Fairchild Ave Ste 205, Barksdale AFB, LA, 71110-2271

Y -- REPLACE AIR CONDITIONING IN BLDG 6825, 3RD FLOOR AT BAFB LA SOL F16602-00-QC074 DUE 070500 POC Hilda Risty, Contract Administrator, Phone 318-456-3262, Fax 318-456-3294, Email Hilda.Risty@barksdale.af.mil -- Cathina Stone, Contract Administrator, Phone 318-456-2430, Fax 318-456-3294, Email WEB: Visit this URL for the latest information about this, http://www.eps.gov/cgi-bin/WebObjects/EPS?ACode=P&ProjID=F16602-00-QC0 74&LocID=886. E-MAIL: Hilda Risty, Hilda.Risty@barksdale.af.mil. Replace Air Conditioning in Bldg 6825, 3rd floor at BAFB LA. SCOPE OF WORK, AWUB 000123 Demolition: Disconnect existing Fan coil units (Ceiling and Floor type) and remove from space. Disconnect Condensate piping and terminate under floor slab. Disconnect existing shower head piping and plug vertical roof drain. Reroute existing fire alarm conduit to the egress door outside building. Remove and dispose materials to dump site off Base. Cap chilled water mains (supply and return) after removing branch pipes and Fan Coil units. NEW HVAC system: 1- Provide AHU units with Hot/Chilled Water coil as scheduled below. Outdoor Air Intake through the wall or through the roof shall be equipped with bird screen. 2- Provide ceiling return grills as shown on the layout. Locate grills within the ceiling's panels. 3- Locate the Indoor unit above ceiling of the Break Area. 4- Provide duct as shown on the floor plan. Sheet Metal work shall be manufactured from 22 gauge and IAW SMACNA standard. Provide shop drawing before you proceed with installation. 5- Ceiling diffusers and return grills shall be equipped with Volume control to balance the system. 6- Provide Summer /Winter thermostat with dead band region. No Heating or cooling shall be provided during the dead band region. Upon call for cooling the space thermostats shall activate the three-way control valve on the Unit coil until space is satisfied. Fan shall run continuously on the On-Position shut down on the Off-Position. On the Auto position the fan shall circulate on/off to maintain 60 F in the space. Provide Outside air controller that will shut off Outside Air Damper if outside air temperature falls below 35 F and open it when temperature shall rise above 40F. 7- Provide conduit 3/4 " dia, (4)#8 wiring to feed the condensing unit from existing closet on the third floor. Power Source, MCA 32, ICF 80, CIRCUIT BREAKER (OR FUSE) 100 8- Provide Chilled/Hot Water heating coil with three-way control valve. Coil shall be sized for 10.5 and 18.5 Gallons per minute Chilled water and 10 F temperature drop across the coil. Connect the Chilled/Hot water coil to the existing 4" Inch supply and return on the first floor. 9- Clean space from construction debris and remove all excess material after completion of the work. 10- Insulate duct with at least one inch thick duct insulation. 11- Run 1 1/2 Inch condensate line from the Interior AHU to existing condensate pipes at the break area or provide indirect connection to existing roof drain. Provide PVC check ball valve before the indirect connection to prevent storm water to get into space. 12- Arrange with the user to disconnect all Chilled/Hot water pipes on Saturday and is to be plugged and completed in one day. 13- Insulate all new Hot/Chilled Water supply and Return. 14- Insulate condensate piping. 15- Provide Condensate pan under coil. Provide a P-Trap on the condensate line. 16- Connect the Hot/Chilled coil to Supply/Return on the first floor, use 2" dia copper pipe. Provide Circuit setter on the return pipe of each coil. Set the circuit setters to the flows indicated below. 17- Provide isolating Ball Valves to be able to isolate the coils. Provide Automatic vents at the highest points of the pipe route. Provide manual vent / or Automatic vent on the coils. 18- Provide 500CFM Roof Turbine. Install where existing roof Intake duct is located. Flash the existing roof around Roof Turbine. 19- All Ceiling Diffusers and Return grills shall be located within future ceiling at 8 feet high from the finished floor. Flexible duct length shall not exceed 3 feet. NO DESCRIP BTUH SEN BTUH LAT EAT DB LAT DB EAT WB LAT WB CFM S.P 1 AHU-1 39120 13040 76.8 58.5 68.6 58.5 1630 1.0 2 AHU-2 68880 22960 76.8 58.5 68.6 58.5 2870 1.0 Notes: 1- Size the coil for 500 Feet per minute or less 2- Size flow of 10.5 for AHU-1, 18.5 for AHU-2 gallons per minute for Chilled water coils. 3- Provide filter on the suction side of the Fan. 4- Size outside air louver and damper for 220 CFM, 380 CFM. 5- Provide Return air damper on the return of the mixing box. CEILING DIFFUSERS AND RETURN GRILLS SCHEDULE NO CFM DIRECTION S.P DROP TYPE QTY LOCATION 1 260 4-WAYS .11 SUPPLY 1 BREAK RM 2 150 4-WAYS .01 SUPPLY 1 CORRIDOR 3 150 4-WAYS .01 SUPPLY 1 CORRIDOR 4 600 4-WAYS .21 SUPPLY 3 AUDITORIUM 5 280 4-WAYS .11 SUPPLY 2 COMP BASE RM 6 260 4-WAYS .16 SUPPLY 1 TRAINING OFFICE 7 147 4-WAYS .16 SUPPLY 1 MECHANICAL RM 8 275 4-WAYS .16 SUPPLY 1 TRAINING OFFICE 9 178 3-WAYS .01 SUPPLY 1 TRAINING ADMIN 10 166 3-WAYS .01 SUPPLY 1 RESOURCE RM 11 264 4-WAYS .16 SUPPLY 1 OFFICE 12 642 3-WAYS .03 R. GRILL 1 TRAINING OFFICE 13 540 4-WAYS .03 R. GRILL 3 AUDITORIUM 14 252 2-WAYS .02 R. GRILL 2 COMP BASE RM 15 367 2-WAYS .03 R. GRILL 1 SMALL CORRIDOR-1 16 248 2-WAYS .03 R. GRILL 1 SMALL CORRIDOR-1 17 132 2-WAYS .03 R. GRILL 1 MECHANICAL RM 18 284 3-WAYS .03 R. GRILL 1 CORRIDOR Posted 06/21/00 (D-SN467242). (0173)

Loren Data Corp. http://www.ld.com (SYN# 0130 20000623\Y-0003.SOL)