Sound Test: System sound levels shall be measured at eight (8) octave bands at the scheduled design operating conditions. Airborne sound levels at openings shall be read in the test ductwork 5 ft. from openings. Transmitted sound levels shall be read 5 ft. from outside of fan sections or components, on all sides and on top. Readings shall be taken at all outside, return, exhaust and supply air openings. EXECUTION INSTALLATION Use spreader bars with lifting cables and hoist sections from lifting lugs, to prevent cable damage to sections. Rig individual sections under direct supervision of Unit Manufacturer's Representative. Install on concrete housekeeping pad. Coordinate final pad size and location in field. When indicated, install units on steel supports. Coordinate final location and placement of steel supports and ductwork connections in field. Secure the unit to the housekeeping pad or steel supports with suitable anchors bolted through the unit's base rail. Prior to anchoring, level unit in all directions with stainless steel shims. Shipping splits requiring field reconnection shall be made under the direct supervision of unit Manufacturer's Representative. Provide labor to reconnect utilities, piping, conduits and sheet metal sections of the unit. Openings to ductwork and piping shall remain protected and covered until unit assembly. Immediately after unit assembly, restore all factory protection. Maintain protection after assembly until just prior to final acceptance by Owner. Make piping and duct connections, install filters and unit accessories, and complete all work required to place the unit into service. Connect vents and drains to non-ferrous coil headers with bronze or brass fittings. Provide a qualified service technician from the Manufacturer's staff to perform unit start-up. This start-up service shall be provided prior to commissioning activities, and prior to any temporary use. TEMPORARY Thoroughly unit of all grease, dirt, dust, etc.
TEMPORARY Sound Test: System sound levels shall be measured at eight (8) octave bands at the scheduled design operating conditions. Airborne sound levels at openings shall be read in the test ductwork 5 ft. from openings. Transmitted sound levels shall be read 5 ft. from outside of fan sections or components, on all sides and on top. Readings shall be taken at all outside, return, exhaust and supply air openings. EXECUTION INSTALLATION Use spreader bars with lifting cables and hoist sections from lifting lugs, to prevent cable damage to sections. Rig individual sections under direct supervision of Unit Manufacturer's Representative. Install on concrete housekeeping pad. Coordinate final pad size and location in field. When indicated, install units on steel supports. Coordinate final location and placement of steel supports and ductwork connections in field. Secure the unit to the housekeeping pad or steel supports with suitable anchors bolted through the unit's base rail. Prior to anchoring, level unit in all directions with stainless steel shims. Shipping splits requiring field reconnection shall be made under the direct supervision of unit Manufacturer's Representative. Provide labor to reconnect utilities, piping, conduits and sheet metal sections of the unit. Openings to ductwork and piping shall remain protected and covered until unit assembly. Immediately after unit assembly, restore all factory protection. Maintain protection after assembly until just prior to final acceptance by Owner. Make piping and duct connections, install filters and unit accessories, and complete all work required to place the unit into service. Connect vents and drains to non-ferrous coil headers with bronze or brass fittings. Provide a qualified service technician from the Manufacturer's staff to perform unit start-up. This start-up service shall be provided prior to commissioning activities, and prior to any temporary use. Thoroughly unit of all grease, dirt, dust, etc.
MS237323.docx