vices, and accessories required
for proper operation.
1.02
Related Work
A.
Opening preparation, miscellaneous or structural metal work,
access, field electrical wiring, wire, conduit, fuses and disconnect
switches are in the Scope of Work of other divisions or trades.
1.03
Quality Assurance
A.
In accordance with accepted quality assurance guidelines for
motor-operated doors, both the door and electric operator shall
be manufactured by a single-source producer of door systems,
such as by Overhead Door Corporation.
PART 2 - PRODUCT
2.01 General
A.
The electric door operator shall be the (heavy-duty) (standard-duty)
ArmorDrive modular door control system as manufactured by
Overhead Door Corporation, and consisting of a power train and
mounting kit suitable for the type and size of door specified.
2.02
Motor
A.
Motor shall be 1/2 horsepower (1 horsepower), continuous-duty,
with quick reverse and integral thermal overload, quick-connect
plug-in harness, and auto-configured high- and low-voltage wind-
ings when inser ted into control board. Motor frame shall comply
with (NEMA 48 open drip-proof construction on 1/2 horsepower
single-phase unit) (NEMA 56 open drip-proof construction on 1/2
horsepower three-phase unit) (1 horsepower single-phase unit)
(1 horsepower three-phase unit).
2.03
Reduction
A.
Differential planetar y gear train shall be capable of producing a
40:1 reduction ratio and handling high-shock load capacities of
300 percent of rated loads. Gears shall be factor y-lubricated for
life with synthetic grease. Torque handling capability for the
standard 1/2 horsepower motor shall have at least 150 ft-lbs
max, 50 ft-lbs typical. (Torque handling for the heavy-duty 1 horse-
power, motor shall have at least 450 ft-lbs max, 150 ft-lbs typical).
2.04
Duty Cycle
A.
Duty cycle, in terms of number of door operations per hour, shall
accommodate heavy usage, up to 60 cycles per hour under a
large constant load.
2.05
Clutch
A.
Adjustable friction disc type. Clutch to be located at output drive
side of gear train.
S P E C S 2.06
Brake
A.
Brake shall be 24 volt DC electromagnetic disc type. Stopping
torque shall be rated at 36 in-lbs minimum, and 50-75 in-lbs typical.
Brake system shall provide a progressive brake rate adjustment
and quick-connect plug-in harness connection to the control board.
2.07
Limit System
A.
Limit system shall be adjustable by push-button control, and allow
0.15" @ 12"/sec accuracy/repeatability (0.38 cm @ 0.30 cm/sec).
Limit system shall provide a quick-connect, plug-in harness con-
nection to the control board.
2.08
Electronic Control System
A.
Electronic control system shall be a microprocessor-based system
with the logic control circuitr y and motor drive circuitr y integrated
on a single board. System shall be capable of monitoring and
repor ting on a variety of operating conditions, including:
Current operating status
Power supply status
Current error status, if applicable
Brake activation status
Motor thermal switch status
Motor movement status
External interlock switch status
Hoist interlock switch status
2.09
Mounting Kit
A.
The mounting kit shall contain all required brackets, couplings
and hardware to mount the power train unit component as a
(trolley/drawbar for a standard lift sectional door); (wall-mount, chain
coupling for a (standard lift) (full ver tical) or (high lift) sectional
door); (wall-mount, direct shaft-to-shaft coupling) for a (standard
lift) (full ver tical) or (high lift) sectional door; or (headplate chain
coupling for a (rolling door) (security grille).
2.10
Release
A.
Release shall be a right-hand (left-hand) mounted, toggle-type
mechanism with an integrated interlock switch and single cable
operation.
2.11
Hoist (optional)
A.
Right-hand (left-hand) mounted hoist shall be capable of yielding
a 4:1 reduction ratio, and designed such that there is no hoist
rotation during motor-driven door operation. Hoist shall use a
smooth hand chain. (Optional governor shall be employed to
control the rate of descent).
2.12
Entrapment Protection
A.
Overhead Door Corporation recommends the installation of an
external reversing device for all electrically operated commercial
doors. If a sensing edge or some other reversing device is not
installed, a constant contact control switch must be used to close
the door. We recommend a Fail Sale electric sensing edge that
will not allow the door to close if the sensing edge is damaged or
not working properly.
B.
The control system shall have provisions to connect such entrap-
ment protection devices (electric sensing edge) (pneumatic sensing
edge) (photoelectric sensor) and to provide constant contact control
operation in lieu of such devices.
S P E C S S P E C S
2.13
Accessories (optional)
A.
Timer Close Kit: Kit shall provide the operator with auxiliar y con-
trol inputs, auxiliar y safety inputs, an auxiliar y power output and
an automatic door closing feature with a user selectable time
delay. Safety inputs are to be enabled or disabled using the keypad.
B.
Auxiliary Output Kit: Kit shall provide operator with a nominal 24 VDC
power output fused at 300 mA and several sets of dr y relay con-
tacts that are microprocessor controlled. Each relay output circuit
to include an LED to indicate the status of the output.
PART 3 - EXECUTION
The ArmorDrive shall be installed in accordance with Overhead
Door Corporation instructions and standards. Installation will be
by authorized Overhead Door Corporation representatives.
©2001 Overhead Door Corporation. All Rights Reser ved. A copyright license to
reproduce this specification is hereby granted to non-manufacturing architects,
engineers and specification writers.