DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

B. Filters: 1-inch thick pleated, 20% average efficiency and 85% average arrestance, based onASHRAE 52.1-92, welded wire media support grid to form radial pleat design, supported incardboard frame. Model 20-20, by Farr Company, Los Angeles CA, or approved equal.2 .4 EXHAUST GRILLESA. Steel, white baked enamel finish, perforated face, 1-1/4-inch margin for gypsum board ceilingsand walls, Model 8R, manufactured by Titus, Richardson TX, or approved equal.2 .5 OUTSIDE AIR INTAKEA. Aluminum, roof mounted louvered intake housing, 20x20x14-inches, heavy gauge storm blades,mitered corners, mill finish, roof curb and flashing for 2:12 sloping roof, 18x14 mesh insectscreen, frame and casing for motorized damper. Pennhouse, manufactured by Penn VentilationCo., North Wales PA 19454, or approved equal.2 .6 MOTORIZED DAMPERSA. For two-position control of outside air, mounted in outside air intake. Aluminum, parallel blade,power open, spring return operator, internally mounted with switch. Model FBD12, manufacturedby Penn Ventilation Co., North Wales PA 19454, or approved equal.2 .7 RELIEF DAMPERA. Backdraft/relief damper with parallel blades, counterbalanced, with field-adjustable weights torelieve at static pressures from 0.01 to 0.15 inches water gauge, to suit field conditions.Aluminum blades, with 1/2-inch diameter steel axles. Galvanized steel finish on frame.Manufactured by Ruskin, Grandview MO, or approved equal.PART 3 EXECUTION3 .1 INSTALLATIONA. Install air outlets, intakes and dampers as shown, coordinating exact locations with theContracting Officer.B. Attach air outlets, intakes and dampers to ducts and secure frame to surfaces as shown and asrecommended by manufacturer.3 .2 BALANCINGA. Section 15952.PART 4 MEASUREMENT AND PAYMENT4 .1 AIR OUTLETS AND INTAKESA. Payment will be included in the contract bid item to which this work relates.END OF SECTION15851-2AIR OUTLETS AND INTAKES