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GT20 8300-8350 Overhead Concealed Operator Installation Manual
www.NabcoEntrances.com
P/N C-00183
Rev 8-31-16
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Choice of Fasteners depend on the construction base.
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The swing door drive mechanism GT20 may only be installed and operated for indoor use. If this condition cannot be
fulfilled, the customer must provide sufficient protection from moisture.
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In order to guarantee the safety of the users at all times, the installation must have an AAADM inspection before it is
put into service and during normal operation, at least once a year.
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It is inadmissible to bypass, shunt or disable the safety devices. Any defective safety devices may not be disconnected
in order to continue the operation of the installation.
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Disconnect power at the branch circuit protection during all electrical or mechanical service. When uncertain whether
power supply is disconnected, always verify using
a voltmeter.
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All electrical troubleshooting or service must be performed by qualified electrical technicians and must comply with
all applicable governing agency codes.
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It is the responsibility of the installing door technician to install all warning and instructional labels in accordance
with ANSI 156.10 (Full Energy ) or ANSI 156.19
(Low Energy) and verify compliance.
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It is the responsibility of the purchasing facility or end user to keep warning and instructional labels and literature
legible, intact and with the door.
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Replacement labels and literature may be obtained from local NABCO Entrances, Inc. Distributors. If the name of the
local distributor is unknown, contact NABCO Entrances, Inc. at 1-877-622-2694 for assistance.
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A safe and reliable function of the installation can only be guaranteed if it is operated with the original NABCO
Entrances, Inc. accessories/spare parts. NABCO Entrances, Inc. declines all responsibility for damages resulting from
unauthorized modifications of the installation or from the use of foreign accessories/spare parts.
CHAPTER 3: SCOPE
SECTION 3 .1 To the Installer
The purpose of this manual is to familiarize the installer and purchaser with the proper installation and operation of this system.
It is essential that this equipment be properly installed and operational before the door is used by the public. It is the installer’s
responsibility to inspect the operation of the entrance system to be sure it complies with any applicable standards. In the United
States, ANSI Standard 156.10 (Full Power) and ANSI Standard 156.19 (Low Energy) covers the GT20 Swing Door Operator Assembly.
Other local standards or codes may apply. Use them in addition to the ANSI standard. Both Full Power and Low Energy Swing door
Units are listed by UL according to UL325 and is identified as such on the label.
Instruct the building owners and operator on the essentials of the operation of this device. The owner should follow these
instructions to determine whether the door is operating properly and should immediately call for service if there is any malfunction.
All installation changes and adjustments must be made by qualified, NABCO trained technicians. Replacement labels and literature
may be obtained from local NABCO Entrances, Inc. Distributors. If the name of the local distributor is unknown, contact NABCO
Entrances, Inc. at 1-877-622-2694 for assistance.
SECTION 3 .2 Objective
The Swing Door Operator assembly is designed to be installed onto the top surface of the Door Frame, or Door Panel, or between the
Jamb Tubes under the Door Frame (OHC). This manual was created to offer step by step instructions.
A pedestrian Door that does not have Its glass sections installed at the Factory
shall specify that the glazing material employed is to comply with the requirement in UL 325
par .29 .5 .1:
“The glazing material in both fixed and sliding panels of all sliding doors and in all
unframed swinging doors shall comply with the requirements in the Performance
Specifications and Methods of Test for Safety Glazing Material Used in Buildings,
ANSI Z97 .1 . Glazing material for other pedestrian doors shall also comply with
ANSI Z97 .1, except that single strength or heavier glass may be used for those
portions of doors involving a glazed area of less than 1ft
2
(0 .9 m
2
) and having no
dimension greater than 18 in (457 mm)” .
CAUTION
