F196

6-91

GRAND REVOLVING DOORS

SPECIFICATIONS FOR SERIES 9600 GRAND REVOLVING DOOR

HORTON AUTOMATICS

4242 BALDWIN

CORPUS CHRISTI, TX 78405

512 888-5591

1-800-531-3111

DIVISION 8 - DOORS AND WINDOWS

SECTION 8470 - REVOLVING DOORS

PART I - GENERAL

1.01 DESCRIPTION

This section covers the furnishing and installation of a complete automatic revolving door assembly which has been fabricated and tested for proper operation at the factory. It includes sectional enclosed walls, ceiling, access panel, manual locks, glass, operator, control, wings; all as required for installation as shown and specified.

1.02 RELATED WORK COVERED BY OTHER APPLICABLE SECTIONS OF THE SPECIFICATION SHALL INCLUDE:

Preparation of Opening

Floor Preparation

Electrical Supply and Termination (120 VAC, 20 AMP) Dedicated Circuit

Caulking by Door Installer

Glass and Glazing

1.03 QUALITY ASSURANCE

Manufacturer shall provide documented reliability testing and list of present users, and have been in the Revolving Door business for at least five (5) years.

1.04 SUBMITTAL

A. PRODUCT DATA: Submit manufacturer's standard literature and details for proof of compliance with specifications.

B. SHOP DRAWINGS: Submit shop drawings of revolving door, including sections of all typical members, dimensioned plans and evaluations, indicating anchors and all other components, as required.

1.05 WARRANTY

Unit to be warranted against defective material and workmanship for a one year period from the date of installation.

PART II - PRODUCT

2.01 MANUFACTURER

Revolving door shall be as indicated on plans, and as manufactured by Horton Automatics, a division of the Overhead Door Corporation.

2.02 EQUIPMENT

A. DOOR UNITS:

Grand Revolving Door in four wing construction with metal or optional clear core.

B. OPERATOR: The operator shall be supplied complete with 1/4 HP high torque, DC, UL recognized motor, gear box, and control panel. Control panel shall provide speed control. The double seal, corrosion proof, cast iron gear case shall contain case hardened (60Rc) helical gears in oil bath lubrication. The operator shall allow manual operation (10-20 lbs.) when power is removed to serve as a safety precaution to prevent entrapment. A 2" steel shaft shall serve as a main linkage to connect the operator to the revolving door.

C. AUTOMATIC OPERATION:

a. Two microwave Motion Detectors shall be placed at each entrance to the revolving door to detect someone approaching the door. This actuation shall cause the door to accelerate to the rate of 4 RPM for one complete turn after the actuating signal is removed, then slow for 1/2 revolution and stop.

b. A momentary contact switch with 1" round push button shall be placed at the entrance to the door. The switch mounting plate shall bear the Handicap Logo and read "PUSH BUTTON TO SLOW DOOR". A solid state voice module shall announce "DOOR IN SLOW SPEED - DO NOT PUSH" during reduced speed operation. Activation of this switch will cause the door to slow to 2 RPM for an adjustable period.

D. POWER ASSIST: Pushing the door shall also turn on the operator and revolve the door at the normal speed. Any subsequent pushing on the door will reinitiate one more revolution.

2.03 SAFETY

A. COLLAPSING MECHANISM: Wings shall be hydraulically cushioned upon collapsing and electronically sense any obstruction that would cause the wing to be moved from its centered position. This sensing causes the door to stop and allow the wing to move or bend with the obstruction and further increase the door's safe operation. After clearing the obstruction, the wing shall return to its normal position and the door will begin to rotate again. Wings can also be held captive around the core for free and clear exit on either side of shaft. Minimum clear path on each side shall be 36" (12' OD), 42" (14' OD), or 50" (16' OD).

B. BACK PRESSURE SENSING CIRCUIT: Should the door wings encounter an obstacle at any point in rotation that creates a back pressure on the door of 5-10 pounds (adjustable) the door shall go into the EMERGENCY STOP MODE. The door will stop for five (5) seconds. During this time the door wing can be moved forward or backward. It will then restart at the slow speed and smoothly accelerate to normal run speed.

C. STOPGUARD ELECTRONIC SENSING SYSTEM: A dual range sensor that electronically slows the door when it detects an object within 18" (long range) of the wing and turns on a voice annunciator saying "PLEASE STEP FORWARD." If an object is detected within 6" (short range) of the wing, it will stop the door.

2.04 FINISH

Anodized or Painted Aluminum, Stainless Steel or Bronze Cladding.

2.05 ENCLOSURE

The segmented enclosure shall be constructed of twenty-four (24) flat sections set at proper angle to contour of rotating wings so that proper clearance shall be maintained and weatherseal assured. System shall be capable of accepting 1/4" to 1" insulated glazing.

The round enclosure shall be constructed of eight (8) curved sections. Wing glass shall accommodate 1/4" to 1" glazing.

2.06 DOOR CONSTRUCTION

Medium Stile 1-3/4" thick door wings to be constructed of aluminum extrusions of 6063T5 with 1/8" minimum wall thickness to ensure frame rigidity and high impact resistance. Collapsible door wings shall be provided as emergency opening, one on each side of the centershaft core, for emergency egress.

Lower bearing shall be surface mounted, not requiring excavation beneath floor level.

2.07 CANOPY

Provide canopy to match contour of enclosure. Canopy sides to be aluminum sheet, .090 minimum thickness, and use aluminum laminated ceiling construction.

OPTION: Round Canopy on segmented door. (standard on clad doors)

2.08 HARDWARE/WEATHERSTRIPPING

Provide muntin bar on all wings and five (5) pin locks with manual bolts on two wings. A sweep shall be affixed to each wing and centershaft core to provide adequate weatherseal.

2.09 CEILING LIGHTS

Furnish eight flush ceiling lights.

2.10 GLASS

Segmented door wings, core (optional), and drum shall have 1/4" tempered flat glass. System can accommodate up to 1" glazing in wings, core, and drum.

Round door walls shall use 7/16" bent laminated glass.

PART III - EXECUTION

3.01 INSPECTION

Installer must examine the areas and conditions under which automatic revolving doors are to be installed and notify the contractor in writing of conditions detrimental to the proper and timely completion of the work. Do not proceed with the work until all unsatisfactory conditions have been corrected in a manner acceptable to the installer.

3.02 INSTALLATION

A. Comply with manufacturer's specifications and recommendations.

B. Set units plumb, level and true to line, without warp or rack of frames or doors. Anchor securely in place. Isolate aluminum and other corrodible materials from sources of electrolytic action at points of contact.

C. Install complete door operator system in accordance with manufacturer's instructions, including drive mechanism, controls and control switches.

3.03 ADJUST AND CLEAN

A. Adjust operator and controls for optimum condition and safety. Lubricate operating equipment.

B. Clean aluminum surfaces promptly after installation, exercising care to avoid damage of the protective coating (if any).

C. Advise contractor of protective treatment and other precautions required through the remainder of the construction period, to ensure that revolving doors will be without damage or deterioration (other than normal weathering) at the time of acceptance.