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3.1
Section 3: General Information
Job Site Issues to Consider/Concerns
The following list of items should be considered prior to selecting an operator for a given job site.
• Available power supply.
• Type of door.
• Potential operator mounting obstructions. Items to consider include, but are not limited to: side room, room above door shaft,
room below door shaft, available mounting surface integrity, power supply location, and convenient chain hoist and release
cable positioning.
• Size of door for appropriate operator torque and door travel speed selection.
• Operator mounting environment. Items to consider include operator location, dampness of location, dustiness of the location
and corrosiveness of the location.
• Door activation needs/requirements. Examples include 3 button control stations, 1 button control stations, radio controls, pull
cords, loop detectors, photoelectric controls, key switches, etc. See “Entrapment Protection” section below.
• Interlock switches are required under certain conditions for doors with pass doors and door locks. See Section 5.5 below.
• Accessory equipment. Examples include reversing edges and/or photocell beams, which are required for doors set to operate as
momentary contact, auxiliary control relays, warning lights, etc.
See “Entrapment Protection” section below.
Entrapment Protection Recommendations
Overhead Door Cor
poration recommends the installation of a fail safe external reversing device (such as a reversing edge or photocell
system, etc.) on all electronically operated commercial doors. If such a reversing device is not chosen, then the operator must be installed
with only a constant contact control switch for operation.
NOTE: A monitored 2-wire reversing edge or sensing edge can be installed using the optionally available Timer Close Module (TCM) P/N OPABTCX.S.
WARNING:
DO NOT apply line voltage until instructed to do so.
CAUTION:
Check working condition of door before installing the operator. Door must be free from sticking and binding. If equipped, deactivate
any door locking device(s). Door repairs and adjustments, including cables and spring assemblies MUST be made by a trained
service representative using proper tools and instructions.
07/30/09
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