COUNTERWEIGHT SETS, MOTORIZED -- (10) SETS

91.  This Contractor shall furnish and install ten (10) electrically operated counterweighted sets, which includes the Picture Sheet set. 


92.  These sets shall be of similar construction and built of the same corresponding parts as heretofor specified for the Counterweight System and operated by an approved electric hoist.  This system of electric sets shall be placed on the opposite wall to the manually operated counterweight system.  This Contractor shall furnish the motors, control panels, control devices and limit switches.  All other electrical work shall be done by OTHERS.