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substitution request - Alliance Construction Solutions

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PART 2 – PRODUCTS<br />

2.01 MANUFACTURERS:<br />

A. Subject to compliance with requirements, provide products by one of the following<br />

manufacturers for each type of product:<br />

2.02 MOTORS:<br />

1. Motors: Century/MagneTek, Baldor, Reliance, Westinghouse, Siemens-Allis,<br />

General Electric.<br />

2. Starters: Cutler Hammer, Allen-Bradley, S & S, Square D.<br />

3. Variable Frequency Drives: Robicon, ABB, Reliance, Cutler Hammer, Allen-<br />

Bradley, Square D, Toshiba, Graham, Motor Drive Inc. (MDI).<br />

A. The following are basic specifications for motors:<br />

1. Larger than 1/2 HP shall be three-phase, except where specifically noted<br />

otherwise.<br />

2. Motor construction:<br />

Project No.: 10145<br />

550 15 th Street Dual Brand Hotel<br />

03/16/2012<br />

a. NEMA Standard MG-1, general purpose, continuous duty, Design “B,”<br />

except “C” where required for high starting torque.<br />

b. Copper windings, 40°C ambient with Class F insulation, Class B<br />

temperature rise at 100% load, unless otherwise noted.<br />

c. Frames per NEMA standards as required by application.<br />

d. Bearings:<br />

i. Ball or roller bearings with inner and outer shaft seals; minimum<br />

40,000-hour L-10 life.<br />

ii. Permanently sealed, except regreasable for 360T and larger<br />

frames.<br />

iii. Designed to resist thrust loading.<br />

e. Enclosure Type:<br />

i. Open drip-proof motors for indoor use where satisfactorily<br />

housed and properly ventilated during operation.<br />

ii. Weather protected Type I for outdoor use when enclosed or<br />

housed with adequate ventilation, or TEFC when exposed to<br />

weather or moist locations.<br />

f. Starting Capability: Frequency of starts not less than NEMA standard (two<br />

cold starts and one hot start per hour).<br />

g. Service Factor: 1.15 for three-phase motors and 1.35 for single-phase<br />

motors, except 1.0 for inverter-rated motors.<br />

h. Efficiency: All motors shall have a minimum efficiency as scheduled in<br />

Table 1 in accordance with IEEE Standard 112, test method B and NEMA<br />

Chart 12-10. If efficiency is not specified, motors shall have a higher<br />

efficiency than the “minimum efficiency standard," in accordance with IEEE<br />

Standard 112, test method B and NEMA Chart 12-10.<br />

23 0513 - 3 MECHANICAL/ELECTRICAL REQ.<br />

FOR MECHANICAL EQUIPMENT

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