substitution request - Alliance Construction Solutions

2.04 STARTERS:
A. Furnish individual combination type full NEMA rated starters with HMCP or fused
disconnect switch for all motors provided (except for starters that are shown to be provided
in motor control centers). All combination starters shall be adequately braced for the fault
current available. 42,000 AIC @ 480V, three phase and 65,000 AIC @ 208V, threephase
shall be the minimum ratings.
1. Enclosures: NEMA Type 1, general purpose enclosures with padlock ears, except
in wet locations, where NEMA Type 3R enclosures with conduit hubs shall be used.
Units in hazardous locations shall have enclosure of proper NEC class and
division appropriate for the application.
2. All starters for three-phase motors shall be of magnetic type, complete with the
following accessories:
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
a. Three-leg Class 10 trip-free overload protection with externally operated
manual reset and visual trip indicator.
b. Separate three-phase voltage monitor to provide quick-trip on single
phasing or phase reversal, with automatic reset.
c. Control transformers with fused primary and secondary.
d. 120-volt holding coils.
e. Integral Hand-Off-Auto switch for single-speed motors.
f. Integral High-Low-Off-Auto switch for two-speed motors.
g. High-to-low speed time delay relay for two-speed starters.
h. Auxiliary contacts, one N.O. and one N.C. minimum.
i. “Run” pilot light.
3. Two-speed, two-winding starters shall incorporate both mechanical and electrical
interlocks between the high and low speed contactors and shall have individual
overload current protection and auxiliary contacts for each speed.
4. Starters for single-phase motors shall have horsepower rated thermal overload
switches.
5. All starters shall be full NEMA rated. IEC rated and/or NEMA equivalent rated
starters are not acceptable. All starters shall be listed and labeled by NEMA, UL,
and CSA.
6. Provide complete submittal data for all single and three-phase starters.
7. Approved manufacturers are Allen-Bradley, Cutler-Hammer, General Electric,
Square D, and S & S.
B. Furnish all necessary control devices such as speed controls, transformers, and relays as
required for proper operation for all equipment furnished under this Division.
C. Furnish all remote switches and/or push-button stations required for manually operated
equipment, complete with low energy pilot lights of an approved type.
D. Motors, starters, and other electrical control equipment installed in moist areas or in areas
of special conditions, such as areas where explosive gases are present, shall be designed
and approved for installation in such areas.
E. Furnish circuit and purpose identification for each remote manual switch and/or pushbutton
station furnished herein. Identification may be by means of either an engraved
plastic sign for permanent mounting to wall below switch or a stamping on switch cover
plate. All such identification signs and/or switch covers in finished areas shall match other
hardware in the immediate areas.
23 0513 - 6 MECHANICAL/ELECTRICAL REQ.
FOR MECHANICAL EQUIPMENT