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HYDROFIT™ Owner’s Information Manual
WARNING: The use and ownership of this work is defined in the legend upon the front page hereof.
cars travel only to the highest car call and then reverse direction to the lobby. Cars
bypass hall calls, stopping only in response to car calls. This operation remains in
effect until a car arrives at the lobby.
Rotational Selection
This feature is a variable of Moderate Incoming Traffic operation. It provides for the
selection of elevators for dispatch at the lobby in a prearranged sequence if more
than one car is at the lobby at once.
Variable Interval Dispatching
This feature is part of Moderate Incoming Traffic operation. The assigned car with
higher demand is dispatched at the expiration of a time interval. A car at the lobby
and loaded to a preset percentage of its weight capacity is dispatched immediately.
Group: Firefighters’ Service
Local code requirements must be determined to ensure that Firefighters’ Service
Operations are correctly configured.
Firefighters’ Service Phase I
When a building’s smoke sensor or a keyswitch located at the designated return
landing is activated, the car performs an emergency return to that designated
landing. The return operation is in compliance with applicable codes. A buzzer
alerts passengers that the car is returning and a message indicator in the car
operating panel shows “Please Exit When Doors Open.”
Remote Firefighters’ Service Phase I Keyswitch
Adding a second Phase I keyswitch to a remote location can complement the
primary Phase I keyswitch.
Alternate Return Landing for Phase I
The car, while responding to a Firefighters’ Phase I operation, returns to the
“alternate” landing if the smoke detector at the designated return landing is
activated.
Heat and Smoke Sensing Device
The elevator controller is designed to receive signals from the devices (furnished by
others) that sense heat and smoke or products of combustion. These devices
provide normally closed contacts that open when heat and smoke is sensed.
Firefighters’ Service Phase II
This feature is activated by the firefighters using a keyswitch mounted in the cab,
and places the elevator under their control. The operation is in compliance with
applicable codes. In the U.S. this feature includes the call cancel button in the cab.
When the car cancel button is pressed, all registered calls are cancelled and a
traveling car stops at the next landing. The car responds to car calls, but will only
open its doors due to constant pressure on the door open button. The doors will
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