Division 14 - Conveying Systems
Division 14 - Conveying Systems
14.01 Elevators
A. General
1. Circulation patterns and anticipated usage of the
building shall determine the appropriate types and
number of elevators required to ensure a fully
functioning building. At a minimum, each floor or
area of the building shall be served by at least
one passenger elevator with a 3500 lb. or greater
capacity.
2. Provide State-of-the-art microprocessor based
control systems with remote monitoring, independent
service, firefighter's service, inspection, access,
and automatic two-way leveling. The system shall
provide a comprehensive means to access the
computer memory for diagnostic purposes and shall
have permanent indicators to indicate important
elevator statuses as an integral part of the
controller. Company specific proprietary systems
are not acceptable. Only equipment that is
supported by the manufacturer to all elevator
maintenance companies without regard to affiliation
or the lack thereof will be acceptable.
3. The installer may either connect into an existing
compatible campus wide remote monitoring system or
provide all labor and materials, including
software, required to install a system compatible
with their Controller. The remote monitoring system
shall be capable of monitoring multiple elevators
and/or groups of elevators simultaneously and each
elevator or group of elevators shall be
simultaneously monitored from at least two remote
locations outside the building on campus. In
addition, the remote monitoring system shall
include a dial in modem and software so that the
system may be monitored from an off-campus site.
4. Provide State-of-the-art microprocessor based drive
control systems, either Variable voltage variable
frequency ac motor drives or solid state dc motor
control systems are required. These systems, like
the controller, shall be nonproprietary.
5. All motors used in elevator systems shall be
factory guaranteed to be a minimum 90% efficient at
full load at the rpm that it is being operated. The
motor shall be designed for its respective service
and duty. The motor shall be designed to develop
high starting torque with low starting current,
with all parts capable of meeting the severe
requirements of elevator service. The name plate of
the motor shall identify the motor efficiency, rpm,
voltage, full load amperes, frequency, and duty of
the motor.
6. If any diagnostic tool or equipment is required to
set up, adjust, or trouble shoot the system, or any
part of the system that one of each of these tools
or equipment will be provided with each elevator
purchased including complete instructions for its
use.
7. The Firefighter's Service key-switch shall be
operated by the EPCO MFD-1 key and that all other
key-switches and locks shall be Best 7-pin cylinder
key-switches and locks.
8. The building shall be designed so that no
thoroughfare to other areas, including the roof, is
required through the elevator machine room.
9. Insulation applied to walls or structural members
of or within the elevator shaft or machine room
shall be encapsulated to prevent flaking and
peeling.
10. Elevator system power shall be provided through a
shunt trip circuit breaker with 135 degree heat
detectors located in the machine room, the top of
the elevator shaft, and the elevator pit. The heat
detectors shall be positioned within 18 inches of
any sprinkler head or heads in these areas.
11. Sprinkler pipes entering the elevator machine room
or the elevator shaft shall be branch lines only,
serving that space only and not continuing to
another area. A sprinkler shutoff valve shall be
provided immediately outside the space and its
location shall be marked or a sign shall be
provided at the sprinkler head denoting the valves
location.
12. Paint elevator machine room walls with white
semigloss enamel paint. Paint the elevator machine
room floor and the elevator pit floor with gray
floor enamel. In each case use the paint
manufacturer's recommendations and directions for
the preparation and application of their product.
13. Elevators shall have telephones with hand-free
operation containing an integral automatic tone
dialer. Telephones shall be field programmable
without the need for special tools or programmers
and comply with the latest ADA guidelines.
Reference Division 16, Telecommunications Systems,
Products, for acceptable manufacturers.
14. The Elevator car lighting disconnect shall be fed
from the emergency lighting panel.
15. All elevator related electrical disconnects shall
be marked with the panel #, the circuit #, and the
room # or location of the circuit breaker from
which it is fed.
16. All elevator pits that are below grade shall be
fitted with a sump and a functioning sump pump
system to remove ground water to the storm drain
system.
B. Shafts
All elevator shafts and pits that are below grade shall
be sealed and waterproofed with an effective barrier
system on the exterior walls and below the pit floor.
C. Hydraulic Elevators
1. Hydraulic elevators shall have a scavenger pump or
an oil separator to prevent oil from being pumped
into the storm sewer system and to prevent water
from being pumped into the oil reservoir.
2. The Hydraulic jack shall be of double wall
construction and shall be encased in a schedule 40
pvc jacket with waterproof seal at the pit floor
and waterproof, high pressure seal at the bottom.
3. Underground hydraulic piping shall be avoided if in
any way possible. If it is unavoidable, the piping
be shall coated and wrapped to prevent corrosion
and encased in schedule 40 pvc piping.
4. Install back draft dampers in all elevator shaft
vents with access to the dampers.
5. Provide hoistway access escutcheons or devices on
all hoistway doors without regard to the number of
elevators in the group.
D. Roller Guides
1. All elevators shall be equipped with constant
contact roller guides on the top and the bottom of
the car frame.
2. Elevators with rated loads of 4000 lbs. or less
shall have 3 point roller guides ( 3 rollers per
guide ) and elevators with rated loads above 4000
lbs. shall have 6 point roller guides ( 6 rollers
per guide).
3. All car and hoistway door sills shall be
constructed of nickel silver. Aluminum sills either
cast or extruded are too soft and are not
acceptable.
E. Cabs
1. Passenger elevator cab interior lighting shall be a
minimum of two energy efficient florescent lamps
controlled by energy efficient electronic ballasts.
The lighting system shall consist of 1-1/2"
stainless steel tee's and 1-1/2" stainless steel
ell's permanently welded into a solid framework
grid. The lighting grid shall be suspended from the
ceiling of the cab at a height of no less than 90
inches from the floor to the bottom of the grid.
The ceiling grid shall support milk white lighting
diffusers of no greater than 2 ft. x 2 ft. in size
and shall be designed to align with the top
emergency exit. Exposed surfaces of the grid shall
be ground and polished to a # 4 satin finish.
2. Freight elevator cab interior lighting shall be a
minimum of two energy efficient fluorescent lamps
controlled by energy efficient electronic ballasts.
the lighting fixtures shall be flush mounted to the
ceiling of the cab with appropriate dress rings or
molding to provide a neat appearance. The lamps and
ballasts shall be removable from the interior of
the cab.
3. Freight elevators shall be equipped with power
operated hoistway doors and car doors or gates and
shall satisfy the requirements of ANSI/ASME A17.1
rule 207.4.
4. Position indicators shall be provided inside the
cab and at all landings or levels that lead
directly to a building exit. The position indicator
shall contain 2 inch high 16 segment red LED's on a
black background, covered by a deep red acrylic
lens. The position indicator shall also have up and
down arrows included in the display to indicate the
direction of travel.
5. Elevator car doors shall be equipped with full
length, infrared, curtain type sensing units in
lieu of safety edges and photo ray devices.
F. Maintenance/Operating Manuals
1. Complete wiring and single line diagrams showing
the electrical connections, functions, components,
and sequence of operation of all apparatus
connected with the elevator system shall be
provided in triplicate prior to initialization of
work.
2. Three complete sets of neatly bound operating and
maintenance instructions shall be furnished
specifically for elevator installations. The
maintenance instructions shall include detailed
information, with sufficient illustrations to
prevent misinterpretation. The maintenance
instructions shall include complete detailed data
sufficient to adequately service the entire system,
troubleshoot, repair, and order replacement parts.
Each manual shall also contain a copy of the
instructions and programs required to install,
set-up, and adjust the elevator system or any part
of the system, including passwords of all levels.