T Ypes Of Installation - Besam ASSA ABLOY Swingmaster 900 Service And Installation Manual

T ypes of Installation

8 B
The operator may be installed in two types of header (casing): Side Load and Bottom Load.
Side Load is the standard type of header. The operator is installed in the header from the side.
Bottom Load is used for special applications where side access may be limited (for example, where
the finished ceiling is flush with the bottom of the header). The operator is installed in the header
from the bottom.
In addition to the above, the operator and header may be positioned in two ways with respect to the
door: concealed and surface applied.
Concealed means that the operator and the header are placed between the door-jambs with the door
and header concealed within the plane of the wall.
Surface Applied means that the operator and header are mounted on the surface of the wall, and an
external arm system is used to operate the door. A surface applied header is typically 3" longer than
the concealed in order to attach easily to the jambs.
A surface applied Swingmaster operator requires further rack gear travel and thus has an extension to
the rack gear shaft – see illustration below.
Besam Entrance Solutions 14 1/31/2008