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, Salem Area Mass Transit District/Marion County IFB 00-03 15 <br />TAB Services <br />• Actual air flow. <br />• Design return airflow. <br />• Actual return air flow. <br />• Design outside airflow. <br />• Actual outside air flow. <br />• Return air temperature. <br />• Outside air temperature. <br />• Required mixed air temperature. <br />• Actual mixed air temperature. <br />• Design outside/return air ratio. <br />• Actual outside/return air ratio. <br />2) ELECTRIC MOTORS TESTING <br />• Manufacturer. <br />• HP/BHP. <br />• Phase, voltage, amperage; nameplate, actual, no load. Record voltage and <br />amperage on all phase of 3-phase motors. <br />• RPM. <br />• Service factor. <br />• Starter size, rating, heater elements. <br />2) V-BELT DRIVES TESTING <br />• Identification/location. <br />• Required driven RPM. <br />• Driven sheave, diameter and RPM. <br />• Belt, size and quantity. <br />• Motor sheave, diameter and RPM. <br />2) DUCT TRAVERSE TESTING <br />• System zone/branch. <br />