Raynor FireHoist FSE fire door operators offer 1/3 HP, 1/2 HP, 3/4 HP, 1-1/2 HP, and 2 HP, planetary reduction gear drive options, providing an integrated fire door control system. Resetting of the operator is as easy as activating the open control to reset the door with the exception of melting a fusible link. The FSE models are also available for retro fitting existing fire doors by eliminating all the components that typically fail with an operator.