Calder 

There are various functions available for lever on backplates and these are explained below. A pdf attachment is also available as a visible aid. Not all functions ara available for all styles. Function availability can be seen in the function detail of each products description.

• LATCH - For use with latches on non locking internal doors.
• LOCK - For use with mortice sash locks where security is required on internal and external doors. To be used inconjunction with keys.
• LOCK EURO PROFILE - For use with euro profile mortice sashlocks where security is required on internal and external doors. To be used inconjunction with an euro profile cylinder.
• LOCK OVAL PROFILE - For use with oval profile mortice sashlocks where security is required on internal and external doors. To be used in conjunction with an oval profile cylinders.
• BATHROOM - For use with a bathroom lock where privacy is required without the use of a key or cylinder. Emergency coin release as standard.

Lever on backplate function.pdf