SupportGlossary of Terms

C

Chain Hoist

A mechanical operator using a continuous hand chain and gear reduction to lift grille/closure. Rarely used in commercial or retail locations.

Chain Stops

A pair of chains fixed to back of pocket and last panel of an EZ Closure. Includes adjustment bolt to tighten or loosen tension of curtain.

Charging Wheel

Winds tension to the counterbalance spring assembly and is locked in place to the outside of a bracket plate with a tension pin.

Clear Opening Width

Side Folding: refers to width of opening excluding curtain stack/pocket area. Rolling: actual opening left after the grille/closure is installed. Coil, guides, tubes and angles are not part of the clear opening.

Closure

Side folding curtains made of tempered glass, polycarbonate, solid aluminum or perforated steel powder coat painted panels. Rolling curtains made of tempered glass, polycarbonate, solid aluminum and perforated steel slats.

Coil

Barrel assembly and curtain in rolled up position.

Coil Box

A Mini Roll-Up term. This represents the counterbalance assembly including a hood and fascia. The terms for Mini Roll-Ups are known as the axle, end caps, cover face and cover top.

Coil Cord

Electric wire in a tight coil stretching and retracting from the sensing edge on the bottom bar to a junction box located at mid-door height that is wired to the electric operator.

Coil Side

Side of the curtain that the barrel assembly and bracket plates protrude.

Constant Contact

The wiring of a key switch or button activating the electric operator to the open or close cycle only when the key switch or push button control is depressed. The electric motor will stop if pressure is released.

Counterbalance Spring Assembly

Located inside the barrel and consists of the torsion spring, spring plugs and tension shaft.

Counter Grille / Counter Shutter

A grille/closure that is in a location that is not a walk through opening.

Counter Socket

Allows for 1″ (25mm) depth of engagement of the Lock Rod. Constructed of stainless steel, overall dimensions are 1″ x 5/8″ (51mm x 16mm).

Cover Face

A Mini Roll-Up term. Refers to the coil side and bottom of hood.

Crank Operation

A mechanical operator using an awning or wall mounted gearbox with removable handle.

CTS

Cabinet tambour shutter.

Curtain

Side Folding: the completed assembly of side folding panels that make up the side folding closure or grille.
Rolling Grille: rods and links of aluminum assembled in grille pattern of choice with attached bottom bar.
Rolling Closure: slats of aluminum assembled with end locks making a door or shutter with attached bottom bar.

Curves

Track bent to form 10-inch (254mm) radii of 90, 120, 135 and 150-degree angles. Radii for 90-degree curves for some models are also available in 14″ (356mm) radius. Special curves and radii are available.

Cylinder Locks

Keyed mechanism operating a locking device located on the bottom bar.