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GT20 8300-8350 Overhead Concealed Operator Installation Manual
www.NabcoEntrances.com
P/N C-00183
Rev 8-31-16
Table 3 Input / Output Specifications
Input
Description
Number of Signal Inputs
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2 x Activation
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3 x Safety Inputs (1 x Header mounted, 2 x Door mounted)
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1 x Emergency Input
Optically Isolated Input
(1) Wall Switch can activate multiple Units without using an Isolation Relay.
Signal Suppression for
Door Mounted Sensor
Signal Suppression determines what angle the door mounted sensor is ignored by the control.
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Pull Side
Programmable - 45 degrees to Full Open
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Push Side
Programmable - 0 - 60 degrees
Output
Description
Number of Outputs
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1 x Electric Lock Form C Relay
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1 x Electric Lock Status
Table 4 Basic Features
Feature
Description
Simultaneous Pair Synchronization
Pairs are synchronized to ease adjustability and to operate smoothly.
Astragal Function
Opens and/or Closes (1) Door Panel slightly ahead of an opposite Door Panel.
Independent Dual
(2) Independent Swing Doors operated by a (2) Operator Assemblies.
Low Energy
Utilize a Knowing Act to open a Swing door.
Full Energy
Utilize Sensor(s) to open a Swing door.
Air Lock w/optional plug-in board
Activation of first Door Panel prevents second Door Panel from opening
Power Boost
Power Close
Hold Close
Applies pressure to keep Door closed
Obstacle Detection
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Opening
Door Panel will reverse if an obstacle is detected.
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Closing
Inverse Operation
Programmable
In the event of a Power Failure or alarm, Inverse Operation opens
the Door Panel under Spring Power for:
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Smoke Evacuation
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Egress
Minimizes the need for battery back-up.
Wind Compensation
Control will gradually increase motor current to counteract wind pressure
Table 5 Adjustable Options
Option
Description
Sensitivity Adjustment for
Obstacle Detection
Yes (on opening)
Adjusts how hard the Door Panel pushes against an
Object before recycling.
No (on opening)
Time Delay Adjustment
for Activation
0 - 60 seconds
Determines the amount of time “Power Open” is applied
to the motor.
Electronic Delay Timer
0 - 4 seconds
Adjusts the amount of time the Door Panel hesitates
before opening when locked.
SECTION 4 .2 Required Tools
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6mm Allen Wrench
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13mm Open Box / Combination Wrench