Directional Ceiling Fan Switch

Bid request: Pulaski County Courthouse hydraulic elevator modernization

HYDRAULIC ELEVATOR SPECIFICATION                                                              

The Logic Control operation will be accomplished utilizing Microprocessor Computer Logic Control with Solid State Starting. The Elevator Control Program will be contained in non-volatile, programmable, read only memory. Safety circuits will be monitored and controlled by the programmable Logic Control for redundant protection.  The Controller will control starting, stopping and prevent damage to the motor from overload or from excess current. It will automatically cut off the power supply and bring the car to rest in the event of operation of any of the safety devices. The controller will be enclosed in a cabinet within the Machine Room.  On board diagnostics shall be provided where no special hand held too is necessary.   Battery Lowering shall be provided.  Should power loss, phase reversal or low voltage conditions occur; the lowering system is activated, the elevator doors close and the elevator goes to the main exit landing and reopens the doors.   The elevator returns to normal operation when power is restored.            

The existing jack assembly will be retained and re-used.  Included in the base bid for this modernization proposal shall be the cost for performing a full load test to determine if there is any problem or leak with the existing jack assembly.   An Alternate #1 shall be included with this bid to show the cost for replacing the hydraulic jack assembly should this test indicate it is necessary.  At the conclusion of the full load test a detailed written report shall be provided to confirm the results of the full load test.  If the full load test indicates a jack assembly replacement is necessary the Elevator Contractor shall immediately, upon receipt of written authorization from Pulaski County, expedite the delivery of a new jack assembly to facilitate the uninterrupted modernization and repair of the elevator- including the replacement of the jack assembly.

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