Ventilation

The Whitney M. Young Job Corps Center is soliciting bids for a ventilation project to be awarded by November 23,2009. Small business are encouraged to bid The intent of this Scope of Work is to correct the ventilation issues at the Whitney M. Young Center. The center ventilation issues include: 1. Building 0002 Provide a 200 CFM ceiling exhaust fan with integral back-draft damper and 20 LF of 6" diameter duct. Provide two air intake grilles: one in the janitor closet, and one in the storeroom. Connect the two registers to the common riser with 6" diameter duct and appropriate fittings. Run the duct through the concrete third floor. Extend the duct 1 LF through the foof and provide appropriate foof cap. Energize from lighting circuit, using the existing switch and 20 LF of 3 #12 in 1/2" EMT. Provide for drywall repair if necessary. 2. Building 0009 Provide a 600 CFM wall mounted exhaust fan with integral back-draft damper. Provide on-off switch and 25 LF of 3 #12 in 1/2" EMT to nearest electrical source with adequate capacity. 3. Building 0010 Provide a 100 CFM wall mounted exhaust fan with integral back-draft damper for the male toilet room, and a 100 CFM ceiling mounted exhaust fan for the female toilet room. Route the exhaust duct for the female toilet room via the male toilet room. Requires 20 LF of 4" diameter duct. Connect the units to the lighting circuit utilizing the existing light switches Provide two 1300 CFM (approx. 1CFM/SF) wall-mounted, explosion-proof exhaust fan rated for Class 1, Division 1, Group D Service, Locate the intake of the fan no more than 1 FT above the floor. Locate the exhaust a minimum of: 30 FT from property lines, 10 FT from operable openings into buildings, 6 FT from exterior walls and roofs, 30 FT from combustible walls and operable openings into buildings which are in the direction of the exhaust discharge, 10 FT above adjoining grade. Provide two 18" by 18" barometrically-operated relief air dampers with bird screens in an exterior wall opposite the exhaust fan. Energize fan from the nearest suitable panel with available circuits and capacity using 60 LF 3 #12 wire in 3/4" rigid conduit with explosion-proof fittings. Provide local disconnect for servicing. 4. Building 0022 Provide a wall mounted 100 CFM exhaust fan with integral back draft damper in each toilet room. Connect the units to the lighting circuits utilizing the existing light switches for fan operation.