Dunham-Bush HRSC - D, Operating & Maintenance Instructions

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60 Hz HRSC ELECTRICAL DATA (50 - 150)
VOLTAGE TOLERANCES:
1) 208 volt: min. 187, max. 229
2) 230 volt: min. 207, max. 253
3) 460 volt: min. 414, max. 506
208/230 XL 205 205 205 - 1228 1228 1228 - 667 - 800 -
208/230 XL 205 205 205 - 409 409 409 - 667 - 800 -
460 Y-D 91 91 91 - 485 485 485 - 296 - 350 -
460 XL 91 91 91 - 162 162 162 - 296 - 350 -
208/230 Y-D 209 209 209 - 1415 1415 1415 - 471 262 600 450
208/230 XL 209 209 209 - 472 472 472 - 471 262 600 450
460 Y-D 98 98 98 - 539 539 539 - 312 - 400 -
460 XL 98 98 98 - 180 180 180 - 312 - 400 -
208/230 Y-D 209 209 209 - 1415 1415 1415 - 471 262 600 450
208/230 XL 209 209 209 179 472 472 472 - 471 262 600 450
460 XL 98 98 98 74 539 539 539 - 319 - 400 -
460 Y-D 98 98 98 74 180 180 180 - 319 - 400 -
208/230 XL 205 205 205 205 1228 1228 1228 1228 462 462 600 600
208/230 Y-D 205 205 205 205 409 409 409 409 462 462 600 600
460 XL 91 91 91 91 485 485 485 485 387 - 450 -
460 Y-D 91 91 91 91 162 162 162 162 387 - 450 -
208/230 XL 209 209 209 209 1415 1415 1415 1415 467 462 600 600
208/230 Y-D 209 209 209 209 472 472 472 472 467 462 600 600
460 XL 98 98 98 98 539 539 539 539 396 - 450 -
460 XL 98 98 98 98 180 180 180 180 396 - 450 -
208/230 Y-D 209 209 209 209 1415 1415 1415 1415 471 462 600 600
208/230 XL 209 209 209 209 472 472 472 472 471 462 600 600
460 Y-D 98 98 98 98 539 539 539 539 403 - 500 -
460 XL 98 98 98 98 180 180 180 180 403 - 500 -
208/230 Y-D 209 209 209 209 1415 1415 1415 1415 471 471 600 600
208/230 XL 209 209 209 209 472 472 472 472 471 471 600 600
460 Y-D 98 98 98 98 539 539 539 539 417 - 500 -
460 XL 98 98 98 98 180 180 180 180 417 - 500 -
Model
HRSC
Volts
60 Hz.
3 PH.
Type
of
Unit
1 2 3 4 1 2 3 4 Cir. 1 Cir. 2 Cir. 1 Cir. 2
NOTES:
1. XL: Across the line; Y-D: Star-Delta
2. RLA (Rated Load Amps) rated in accordance with ARI Standard 590.
3. Starting current for normal Y-D start is shown. In certain compressor failure modes, Y-D inrush can be as high as XL
inrush.
4. Wire Size Amps (ampacity) equal 125% of the rated load amps for the largest motor in the circuit plus 100% of the
rated load amps for all other motors in the circuit, per N.E.C.
5. Maximum fuse size is based on 225% of the rated load amps for the largest motor in the circuit plus 100% of the rated
load amps for all other motors in the circuit. This is the largest fuse allowed per N.E.C. A smaller fuse is often recom-
mended based on unit application and ambient temperature.
RATED LOAD AMPS
MOTOR NO.
LOCKED ROTOR AMPS
MOTOR NO.
Minimum
Circuit
Ampacity
Maximum
Fuse
Size
COMPRESSORS
180
210
225
240
255
270
300
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