EHRESMAN ASSOCIATES, INC.
GROSSE POINTE PUBLIC SCHOOL SYSTEM
PIERCE MIDDLE SCHOOL
AUDITORIUM SEATING REPLACEMENT
14 440 VERTICAL PLATFORM LIFT
PROJECT NO. 10313
PAGE 1
ADDENDUM #1
PART 1 – GENERAL
DESCRIPTION
WORK INCLUDED: Perform all work required to complete the platform lift installation.
1.
MACHINE TOWER with lifting platform.
2.
ACCESS GATES
3.
CONTROLS
4.
RAMP
5.
ACCESSORIES
QUALITY ASSURANCE
MANUFACTURER: Company with not less than five (5) years of experience in the design and fabrication of
vertical platform lifts.
REFERENCE STANDARDS – Conform to following:
1.
CONFORM to ICC A117.1, NEC, ASME A17.1, and ASME A18.1
2.
MICHIGAN BARRIER FREE CODE
3.
STATE LIFT CODE
4.
FEDERAL ADA CODE
JOB CONDITIONS
OBTAIN ALL INFORMATION affecting work at job site.
1.
VERIFY field dimensions
VERIFY VOLTAGES and outlets on electrical drawings with electrical contractor before ordering motor and
controls.
SUBMITTALS
PRODUCT DATA: Manufacturer's literature.
1.
SUBMIT DRAWINGS
SHOP DRAWINGS: Show dimensions, field verified measurements and wiring requirements.
TESTING
LOAD THE VERTICAL lift to rated capacity and test for several cycles to insure proper operation. No
mechanical failures shall occur and no wear that would effect the reliability of the unit shall be detected.
WARRANTY
ONE YEAR: Written guarantee.
TWO YEARS: On drive components
PART 2 – PRODUCT
PERFORMANCE
RATED LOAD: 750 pound capacity
TRAVEL SPEED: 10 feet per minute
LIFTING HEIGHT: Approximately 3’-7” (field verify)
PLATFORM SIZE: Standard: 36 inches by 48-7/8 inches clear platform dimensions
PLATFORM RAMP: Stationary
MANUFACTURERS
ACCEPTABLE MANUFACTURERS – Subject to compliance with project requirements.
1.
GARAVENTA CO., Product – Genesis Opal Model; GVL-OP-60
2.
THYSSEN-KRUPP CO
3.
THE NATIONAL WHEEL-O-VATOR CO., INC.
4.
APPROVED SUBSTITUTE.
EHRESMAN ASSOCIATES, INC.
GROSSE POINTE PUBLIC SCHOOL SYSTEM
PIERCE MIDDLE SCHOOL
AUDITORIUM SEATING REPLACEMENT
14 440 VERTICAL PLATFORM LIFT
PROJECT NO. 10313
PAGE 2
ADDENDUM #1
FABRICATION
PLATFORM 12 gauge minimum zinc clad steel.
1.
STATIONARY RAMP extend under the lower landing gate/door.
2.
SIZE: 36 inches by 48-7/8 inches clear platform dimensions
3.
CONFIGURATION: Straight Through exit/entry.
PLATFORM SIDE PANELS: 42-1/8 inches high mounted on platform.
1.
FRAMEWORK: Minimum 1" x 1-1/2" x. 065 tubing.
MAIN FRAME SUPPORT: Square and rectangular tubing with a minimum .120 wall thickness
CARRIAGE ARMS: Minimum of ½" wide steel flatbar along with ½" x 3-1/2" steel flatbar uprights.
1.
CAM ROLLERS for axial carriage guidance.
2.
COMBINATION of cam rollers and wear pads for horizontal stability.
MACHINE TOWER SIDES: 12 gauge galv. steel, 18 gauge zinc clad steel minimum.
1.
FRONT AND BACK
LEADSCREW DRIVE: With manual platform emergency lowering hand wheel.
ENCLOSURE: 1-1/2” min. steel tube supports, 18 ga galv. panels, with interlock
UPPER LANDING GATE: 42” high, steel tube, 18 ga galv. panels, with interlock
PLATFORM GATE: 42” high
LOWER LANDING GATE: 42” high, with interlock
CONTROL: Combination mechanical lock with electrical contact.
FINISH: Electrostatically applied powder coating oven baked to cure.
1.
COLOR: Selected from manufacturer's standard colors or optional colors.
GRAB RAIL on the platform.
MOTOR and CONTROLS
MOTOR instant reversing, minimum of 2 HP capacity.
POWER SUPPLY: 120 VAC single phase; 60 Hz on a dedicated 20 amp circuit.
UPPER FINAL LIMIT SWITCH to cut off all power and stop the platform in the event of the upper limit switch
failure.
KEYLOCKED CONSTANT PRESSURE up/down control switch installed at the landing levels and on the
platform.
EMERGENCY STOP/ILLUMINATED ALARM SWITCH: On the car as a means of signaling for
assistance in the event of an emergency.
HANDCRANK: As a means of manually raising and lowering the platform in the event of a power of
component failure.
ELECTRIC STRIKE: Fail secure. To assure that door is both closed and locked.
1.
LOCATION: Upper and lower landing doors.
2.
VOLTAGE: 24 volt
3.
COORDINATE: With hardware and door frame supplier/installer.
PART 3 – INSTALLATION
INSTALLATION
ELECTRICAL CONNECTION
A dedicated electrical circuit with a lockable service disconnect switch.
COORDINATE work with general contractor and electrical contractor.
INSTALLATION OF THE VERTICAL PLATFORM lift shall be made in accordance with the approved
plans and specifications and the manufacturers installation instructions, applicable code requirements.
Meet ADA and Michigan Barrier Free Code, Michigan Building Code, Life Safety Code, Michigan Elevator
Code.
INSTALL LIFT according to manufacturer’s recommendations.
INSTALL PER
1.
1CC/A117.1
2.
NEC
3.
ASME A18.1 Guidelines
EHRESMAN ASSOCIATES, INC.
GROSSE POINTE PUBLIC SCHOOL SYSTEM
PIERCE MIDDLE SCHOOL
AUDITORIUM SEATING REPLACEMENT
14 440 VERTICAL PLATFORM LIFT
PROJECT NO. 10313
PAGE 3
ADDENDUM #1
MAINTENANCE
MAINTAIN the platform lift unit with regular cleaning of the unit and regular inspection for a period of 12
months after substantial completion.
ADJUSTMENT
ADJUST unit for proper operation. Secure any required state approvals.
TEST Load to rated capacity and test for several cycles.
END OF SECTION