Single button control station:
Momentary type, control circuit 24V. A.C.
Solid state dual automatic closer “timer”:
Red and green warning lights (60 watts bulb maximum). If door is closed, push of button starts door up and turns green light on for a preset time. (Adjustable without tools from 5 seconds to 180 seconds). At the end of the preset time, the red lights is turned on for 5 seconds to 90 seconds (adjustable) and the door closes automatically. If button is pressed or any other control used to open door, while door is travelling downward, it will instantly reverse to open position and reset cycle of timer. If door is in the open position and button or any other control used to close door is activated, timer will automatically reset to preset timing.
Is provided to cut out timer when automatic closing is not desired, such as in summer.
Screw type with oilite bronze cams and precision type micro switches for both up and down position. (Easily adjustable without tools within 1/2″ (1.25cm) of door travel).
Automatic instant reverse mechanism:
If downward travelling door meets an obstruction, it will instantly reverse and automatically stop at fully open position for your safety and protection. This built-in instant reverse, load-sensing device is easily accessible externally for adjustable without tools.
V belt, roller chain, steel sprockets are used for efficient, long lasting, quiet operation, rotating on high speed ballbearings as well as self-lubricating, self-aligning pillow block bearings. Door speed approx. .8 to 1.0 ft. per second. (.24m to .3m per second)
Heavy duty aluminium alloy travelling carriage slides on dual heavy angle tracks with full No. 41 push and pull roller chain drive.
Quick release lifting arm:
Will quickly disengage operator from door, without tools for manual operation, in the event of power failure.
2″ (5cm) minimum from door’s highest arc of travel.
4’7″ (137.5cm) plus door height.
Optional at extra cost “special reverse mount”:
3’0″ (.9m) plus door height.
1/3 H.P. (.33hp), 120V., 60 cycles, 1 phase instant reverse type of recognized manufacture, thermally protected with thermo overload switch.
Primed with rust-proof primer and spray painted in blue hammer tone enamel.
These operators can be wired to receive radio and photo electric control systems, loop detectors, etc., for fully automatic door operation.
See auxiliary equipment for additional information.