substitution request - Alliance Construction Solutions

Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
i. Noise Rating: NEMA standard (90 dBA maximum for single or two-pole,
85 dBA maximum for three-pole).
i. Motor Connections: Flexible conduit, except where plug-in
electrical cords are specifically indicated or furnished as OEM
equipment with motor.
Motor
Horse-
Power Open Motors, ODP Enclosed Motors, TEFC
1200 RPM 1800 RPM 3600 RPM 1200 RPM 1800 RPM 3600 RPM
1 80.0 82.5 - 80.0 82.5 75.5
1.5 84.0 84.0 82.5 85.5 84.0 82.5
2 85.5 84.0 84.0 86.5 84.0 84.0
3 85.5 86.5 84.0 87.5 87.5 85.5
5 87.5 87.5 85.5 87.5 87.5 87.5
7.5 88.5 88.5 87.5 89.5 89.5 88.5
10 90.2 89.5 88.5 89.5 89.5 89.5
15 90.2 91.0 89.5 90.2 91.0 90.2
20 91.0 91.0 90.2 90.2 91.0 90.2
25 91.7 91.7 91.0 91.7 92.4 91.0
30 92.4 92.4 91.0 91.7 92.4 91.0
40 93.0 93.0 91.7 93.0 93.0 91.7
50 93.0 93.0 91.4 93.0 93.0 92.4
60 93.6 93.6 93.0 93.6 93.6 93.0
75 93.6 94.1 93.0 93.6 94.1 93.0
100 94.1 94.1 93.0 94.1 94.5 93.6
125 94.1 94.5 93.6 94.1 94.5 94.5
150 94.5 95.0 93.6 95.0 95.0 94.5
200 94.5 95.0 94.5 95.0 95.0 95.0
(Table 1-cont’d ↑)
Note: For other types of motors, including, but not limited to, multi-speed motors, explosion proof
motors and/or special hermetic motors packaged with equipment, efficiency and power factors
may vary from above values. For these special applications, motors shall be high-efficiency type
and are subject to review by the Engineer.
B. Inverter Duty Motors:
Nominal Full-Load Efficiency (Table 1)
1. Motors 7-1/2 HP and larger supplied for use with Variable Frequency Drive (VFD)
shall be rated for inverter duty and must include a stainless steel nameplate for
identification as “Inverter Duty Motor.”
2. Nameplate shall also show that motor is suitable for variable torque operation on
VFD power from 6 to 60 hz and show rated torque in lb-ft on inverter power in
addition to the standard nameplate data specified in NEMA standards.
23 0513 - 4 MECHANICAL/ELECTRICAL REQ.
FOR MECHANICAL EQUIPMENT