The GT710 operates in both automatic and manual modes. It features a 2-60 second hold-open range and a "push-n-go" feature.The GT 710 operator has a hydraulic backcheck that protects the door and mechanical operator from damage when forced open in windy conditions or when manually operated.
In manual mode, the system closes slowly upon release to enable passage. The GT710 with its hydraulic closer offers the flexibility to adjust the closing pressure as needed for specific site conditions. The GT710 operator is now approved for use on fire door assemblies rated up to 3 hours.