DIVISION 14 - CONVEYING SYSTEMS
SECTION 14 24 23 - ELEVATORS
PAGE 5 OF 18
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PART 1- GENERAL
1.1 Work of this section includes:
.1 Provide one (1) complete holeless hydraulic elevator in a first class
workmanlike manner.
.2 All work shall be performed in accordance with the latest revised
edition (as of date bids are taken) of the Safety Code for Elevators and Escalators (ASME A17.1), the National Electrical Code, and/or such State and Local elevator codes as may be applicable. Should, subsequent to the date bids are taken, changes be made in any code or should rulings by any code enforcing authorities extend the application of the code, the Elevator Contractor shall be paid, as an addition to the contract price, for the work and materials necessary to make the installation comply with such changes.
1.2 Drawings
.1 The Elevator Contractor shall, after structural and architectural
drawings are furnished, prepare drawings showing the general arrangement and loads of the elevator equipment. These drawings shall be approved and the hoistway size guaranteed before proceeding with fabrication and installation of the elevators.
1.3 Liability
.1 The Elevator Contractor shall not be liable for any loss, damage, or
delay caused by acts of government, strikes, lockouts, fire, explosions, theft, floods, riot, civil commotion, war, malicious mischief, acts of God, or any cause beyond his reasonable control and in no event shall he be liable for consequential damages.
1.4 Painting
.1 Except as otherwise specified, all metal work fabricated by the
Elevator Contractor shall be properly painted.
1.5 Permits, Taxes and Licenses
.1 All applicable sales and use taxes, permit fees and licenses, as of the
date bids are taken, shall be paid for by the Elevator Contractor. The Elevator Contractor shall be paid, as an addition to the contract price, any additional taxes, fees or other charges exacted from the purchaser or the Elevator Contractor on account thereof, by any law enacted after bids are taken.
1.6 Storage
.1 Elevator Contractor shall provide trailer for storage of all elevator
equipment and tools. Storage is not available in building.
1.7 Temporary Service
.1 The elevator shall not be used for temporary service or for any other
purposes prior to completion and acceptance by the purchaser.
1.8 Maintenance Service
.1 The Elevator Contractor shall furnish maintenance and call-back
service for a period of twelve months on each elevator after it is placed in operation. This service shall consist of periodic examinations of the equipment, adjustments, lubrication, cleaning, supplies and parts to keep the equipment in proper operation, except such adjustments, parts or repairs made necessary by abuse, misuse or any other causes beyond the control of the Elevator Contractor/ All work will be done by trained employees of the Elevator Contractor during regular working hours of the trade.
1.9 Warranty
.1 The Elevator Contractor shall warrant the equipment installed by him
under these specifications against defects in materials and workmanship and will correct any defects not due to ordinary wear or tear or improper use or care which may develop within one year from the date each elevator is completed and placed in operation. This warranty is not intended to supplant normal maintenance service and shall not be construed to mean that the Elevator Contractor will provide free service for periodic examination, lubrication, or adjustment due to normal use, beyond that included in the specifications; nor will the Elevator Contractor correct, without charge, breakage, maladjustments, or other trouble arising from abuse, misuse, improper or unbalanced power supply characteristics, improper or inadequate maintenance, or any other causes beyond his control. If there is more than one unit in this specification, this section shall apply separately to each unit as completed and placed in operation.
1.10 Work Not Included: The following is work by other trades requiring
coordination with the Elevator Subcontractor. Work by others is specified elsewhere in the Contract Documents.
.1 A legal hoistway, properly framed and enclosed, and including a pit
of proper depth provided with ladder, sump pump, lights, access doors and waterproofing, as required. Legal machine room, adequate for the elevator equipment, including floors, trap doors, gratings, foundations, lighting, ventilation and heat to maintain the room at an ambient temperature of 50 degrees F. minimum to 100 degrees F. maximum (90 degrees maximum Traflomatic).
.2 Adequate supports and foundations to carry the loads of all
equipment, including supports for guide rail brackets and machine beams or overhead sheaves (if furnished). If adjacent hoistways are utilized, divider beams at suitable points shall be provided for guide rail bracket support.
.3 Cutting of walls, floors, etc., and removal of such obstructions as
may be necessary for proper installation of the elevator. Setting of anchors and sleeves, pockets or blockouts for signal fixtures.
.4 All sill supports, including steel angles where required, and sill
recesses and the grouting of door sills. Finish walls after hoistway frames are installed.
.5 Provide and maintain temporary enclosures or other protection from
open hoistways during the time the elevator is being installed.
.6 Guide rail bracket inserts provided by Elevator Contractor and
installed by General Contractor.
.7 Suitable connections from the power mains to each controller or
motor generator set starter, signal equipment feeders as required, including necessary circuit breakers and fused mainline disconnect switches.
.8 A means to automatically disconnect the main line power supply to
the elevator prior to the application of water in the elevator machine room will be furnished by the Electrical Contractor. This means shall not be self resetting.
.9 Wiring to controller for car lighting and ventilation. Electric power
without charge, for construction, testing and adjusting of the same characteristics as the permanent supply.
.10 Heat and smoke sensing devices at elevator lobbies on each floor
with electrical conductors terminating at a properly marked panel in the elevator machine room.
.11 Telephone connection to elevator hoistway.
.12 Emergency power supply with automatic time delay transfer switch
and auxiliary contacts with wiring to the elevator controller.
.13 Any governmentally required safety provisions not directly involved in
the elevator installation.
.14 All painting, except as otherwise specified.
.15 Temporary elevator service prior to completion and acceptance of
complete installation.
.16 Furnishing and installing of the finished flooring material.
PART 2 - PRODUCTS
2.1 Acceptable Manufacturer
.1 Elevator as manufactured by Dover, Inc. or equal as approved by
Architect.
2.2 Description
.1 Elevator Designation: 1
.2 Description of Equipment: 1 Holeless Hydraulic Elevator Seville HLS
Series
.3 Control: Hydraulic
.4 Capacity: 3,000 lbs.
.5 Speed: 100 fpm
.6 Operation: DMC1
.7 Car Size: Platform: Width: 7'-0"
Depth: 5'-7"
.8 Clear Inside: Width: 6'-8"
Depth: 4'-9"
.9 Travel: Present: 25'-8"±
.10 Power Supply: Volts: 208 Phase: 3 Cycles: 60
.11 Machine Location: Adjacent
.12 Stops: Present: 3
.13 Openings: Front: 3 Rear: 0 Side: 0
.14 Special Features: As listed
Inspection Operation
Fire Service
Handicap features per ANSI 117
Viscosity Control
Car Independent Service
Number 4 Stainless Hall Fixtures
Solid State Starting
2.3 Car Enclosure
.1 Walls: Walls made of durable solid wood core, covered on both sides
with high pressure plastic laminate.
.2 Fronts and Transom: Fronts and transom with number 4 stainless
steel containing an integral swing return and
car operating devices.
.3 Canopy: Made of unitized steel construction and includes an
emergency exit.
.4 Doors: Front: 1SP 3'-6.00" x 7'-.00"
Hollow metal horizontal sliding with baked enamel finish and 4" high metal kickplates to match elevator finish.
.5 Ceilings: Suspended ceiling with white plastic diffuser in a baked
enamel frame and fluorescent lights.
.6 Sill: Extruded aluminum
.7 Handrails: Continuous number 4 stainless steel ¼" by 2" bar
handrails on two (2) sides.
.8 Accessories: Two speed fan including key switch, protection pad and
buttons.
2.4 Platform and Sling
.1 The platform shall have a fabricated frame of formed or structural
steel shapes, gusseted and rigidly welded. Flooring shall be a wood subfloor. The underside of the platform will be fireproofed.
.2 The sling shall consist of heavy steel stiles properly affixed to a steel
crosshead and bolster, with adequate bracing members, to remove all strain from the car enclosure.
.3 Canopy: Made of unitized steel construction and includes an
emergency exit.
.4 Doors: Front: 1SP 3'-6.00" x 7'-.00"
Hollow metal horizontal sliding with baked enamel finish and 4" high metal kickplates to match elevator finish.
.5 Ceilings: Suspended ceiling with white plastic diffuser in a baked
enamel frame and fluorescent lights.
.6 Sill: Extruded Aluminum
.7 Handrails: Continuous number 4 stainless steel ¼" x2" bar handrails
on two (2) sides.
.8 Accessories: Two speed fan including key switch
Protection pad and buttons
2.4 Platform and Sling
.1 The platform shall have a fabricated frame of formed or structural
steel shapes, gusseted and rigidly welded. Flooring shall be wood subfloor. The underside of the platform will be fireproofed.
.2 The sling shall consist of heavy steel stiles properly affixed to a steel
crosshead and bolster, with adequate bracing members, to remove all strain from the car enclosure.
.3 Steel bumper plates shall be affixed to bottom of bolster channels,
and a platen plate with clamps and cap screws shall be furnished for fastening sling to plunger.
2.5 Car Doors
.1 The car entrance shall be provided with horizontal sliding doors.
Panel rigidity to be obtained by suitable steel reinforcements. Doors shall be hung on sheave type hangers with polyurethane tires that roll on a polished steel track, and guided at the bottom by non-metallic shoes sliding in a smooth threshold groove.
2.6 Alarm Bell
.1 An emergency alarm bell shall be connected to a plainly marked push
button in the car.
2.7 Guides and Guide Shoes
.1 Guides for the elevator car shall be formed steel guide rails, omega
shaped, properly fastened to the building structure with steel brackets. The car stile shall be fitted at top and bottom with guide shoes of the rigid type, with metal body and removable non-metallic liners.
2.8 Automatic Guide Rail Lubricators
.1 Lubricators shall be provided and mounted on top of upper guide
shoes. Wool felt wiper shall apply an even, uniform flow of oil which shall thoroughly lubricate faces of guide rail from a leakproof oil reservoir.
2.9 Power Unit
.1 The oil pumping and control mechanism shall be compactly and
neatly designed with all of the components listed below combined in a self-contained unit; oil reservoir with tank cover and controller compartment with cover; a submerged oil-hydraulic pump; an electric motor; an oil control unit with the following components built into a single housing; a high pressure relief valve; a check valve; an automatic unloading up start valve; a lowering and leveling valve; and a magnetic controller.
.2 The pump shall be especially designed and manufactured for oil-
hydraulic elevator service. It shall be of the positive displacement type, inherently designed for steady discharge with minimum pulsations to give smooth and quiet operation. Output of pump shall not vary more than 10% between no load and full load on the elevator car.
.3 Drive shall be by direct coupling.
.4 Motor shall be especially designed for oil-hydraulic elevator service,
of standard manufacture, and of duty rating to comply with herein specified speeds and loads.
.5 Oil Control Unit shall consist of the following components, all built
into a single housing. Welded manifolds with separate valves to accomplish each function will not be acceptable under this specification. All adjustments shall be accessible and shall be made without removing the assembly from the oil line.
.1 Relief Valve shall be externally adjustable, and shall be capable
of bypassing the total oil flow without increasing back pressure more than 50% above working pressure.
.2 Up Start and Stop Valve shall be externally adjustable, and
designed by bypass oil flow during start and stop of motor pump assembly. Valve shall close slowly, gradually diverting oil to or from the Jack Unit, insuring smooth starts and up stops.
.3 Check Valve shall be designed to close quietly without
permitting any perceptible reverse flow.
.4 Lowering Valve and Leveling Valve shall be externally adjustable
for drop-away speed, lowering speed, leveling speed and stopping speed to insure smooth "Down" starts and stops. The leveling valve shall be designed to level the car to the floor in the direction the car is traveling when slowdown is initiated.
.6 Power controller shall contain all necessary electrical contactors,
electro mechanical switches and thermal overload relays. All components shall be mounted in a NEMA I enclosure. Logic control system shall be microprocessor based or electro mechanical. If microprocessor based system is used, it must be protected from environmental extremes and excessive vibrations.
2.10 Jack Unit
.1 The duel jack units shall be of sufficient size to lift the gross load the
height specified and shall be field tested to insure adequate strength and freedom from leakage. No brittle material, such as grey cast iron shall be used in the jack construction.
.2 The jack unit shall consist of the following parts; a plunger of heavy
seamless steel tubing accurately welded to the plunger to positively prevent plunger leaving the cylinder; an internal guide bearing; packing or seal of suitable design and quality; a drip ring around cylinder top; a cylinder made of steel pipe and provided with a pipe connection and air bleeder. Brackets shall be welded to the jack cylinder for supporting the elevator on pit channels. An auxiliary safety bulkhead shall be provided in the lower end of the cylinder.
2.11 Wiring, Piping and Oil
.1 All necessary wiring shall be furnished and installed in the hoistway
in accordance with the National Electrical Code. All necessary pipe and fittings to connect the power unit to the jack unit and oil of the proper grade shall be furnished.
2.12 Failure Protection
.1 The electrical control circuit shall be designed so that if a malfunction
should occur due to motor starter failure, oil becoming low in the system, or the car failing to reach the landing in the up direction within a pre-determined time, the elevator car will automatically descent to the lowest terminal landing. If power operated doors are used, the doors will automatically open when the car reaches that landing to allow passengers to depart. The door will then automatically close and all control buttons, except the "door open" button in the car station shall be made inoperative.