40
Table 11 —30MPA,MPW016-045 UNITS
LEGEND
*Supply Range — Units are suitable for use on electrical systems where
voltage supplied to the unit terminals is not below or above the listed
range limits.
NOTES:
1. All units have one field power terminal block.
2. Maximum incoming wire size is as follows:
For units with terminal block:
350 kcmil for unit sizes 030-045;
208/230-3-60 voltages.
2/0 for unit sizes 016-045; all other voltages.
For units with optional non-fused disconnect:
350 kcmil for unit sizes:
030-045; 208/230-3-60 voltages.
045; 380-3-60 voltage.
3/0 AWG for unit sizes:
016,020; 208/230-3-60 voltages.
020-040; 380-3-60 voltage.
030-045; 460-3-60, 380/415-3-50 and 575-3-60 voltages.
2 AWG for unit sizes:
016: 380-3-60 voltage.
016,020; 460-3-60, 380/415-3-50 and 575-3-60 voltages.
For units with optional fused disconnect:
6 AWG to 10 AWG for all voltages.
3. Additional control circuit power is not required.
4. Any field modification of factory wiring must be in compliance with
all applicable codes. Field-installed power wires must be rated
75°C minimum.
5. Use copper conductors only.
6. Control circuit power supply is 24-v single phase. Control power is
supplied by the factory-installed control transformer.
7. The MOCP of the electrical distribution panel is calculated as
follows:
First, calculate the MOCP of each individual chiller. MOCP =
2.25 (Largest RLA) + Sum of the other RLAs. Sum the MOCPs
of each individual chiller. This is the MOCP of the electrical dis-
tribution panel associated with this bank of chillers. Select the
next size down fuse from this value.
The recommended fuse size in amps (RFA) is calculated as fol-
lows: RFA = 1.50* (largest RLA) + (Smallest RLA) for the given
bank of chillers.
8. The MCA of the electrical distribution panel is calculated as
follows:
First, calculate the MCA of each individual chiller. MCA = 1.25
(Largest RLA) + sum of the other RLAs. Sum the MCAs of
each individual chiller. This is the MCA of the electrical distribu-
tion panel associated with this bank of chillers.
UNIT SIZE
30MPA,
MPW
VOLTS
NAMEPLATE
VOLTAGE COMPRESSOR A1 COMPRESSOR A2 COMPRESSOR A3 UNIT
MIN MAX RLA (EA) LRA (EA) RLA (EA) LRA (EA) RLA (EA) LRA (EA) MCA ICF MOCP REC FUSE
016
208/230-3-60
187 253 24.8 240.0 17.2 164
N/A N/A
48.2 257.2 70 60
380-3-60
342 418 16.0 134.0 12.2 73 32.2 146.2 45 40
460-3-60
414 508 12.4 130.0 8.6 75 24.1 138.6 35 30
575-3-60
518 632 10.0 93.7 7.0 54 19.5 100.7 25 25
380/415-3-50
342 440 12.4 130.0 8.6 75 24.1 138.6 35 30
020
208/230-3-60
187 253 35.8 239.0 35.8 239
N/A N/A
80.6 274.8 110 90
380-3-60
342 418 23.7 145.0 23.7 145 53.4 168.7 70 60
460-3-60
414 508 17.9 125.0 17.9 125 40.3 142.9 50 45
575-3-60
518 632 14.3 80.0 14.3 80 32.2 94.3 45 40
380/415-3-50
342 440 20.0 118.0 20.0 118 45.0 138.0 60 60
030
208/230-3-60
187 253 55.8 340.0 55.8 340
N/A N/A
125.6 395.8 175 150
380-3-60
342 418 34.0 196.0 34.0 196 76.5 230.0 110 90
460-3-60
414 508 26.9 179.0 26.9 179 60.5 205.9 80 70
575-3-60
518 632 23.7 132.0 23.7 132 53.3 155.7 70 60
380/415-3-50
342 440 28.6 174.0 28.6 174 64.3 202.6 90 80
040
208/230-3-60
187 253 51.3 300.0 51.3 300 51.3 300 166.7 402.6 200 200
380-3-60
342 418 26.9 139.0 26.9 139 26.9 139 87.4 192.8 110 100
460-3-60
414 508 23.1 150.0 23.1 150 23.1 150 75.1 196.2 90 90
575-3-60
518 632 19.9 109.0 19.9 109 19.9 109 64.7 148.8 80 70
380/415-3-50
342 440 25.0 140.0 25.0 140 25.0 140 81.3 190.0 100 90
045
208/230-3-60
187 253 55.8 340.0 55.8 340 55.8 340 181.4 451.6 225 200
380-3-60
342 418 34.0 196.0 34.0 196 34.0 196 110.5 264.0 125 125
460-3-60
414 508 26.9 179.0 26.9 179 26.9 179 87.4 232.8 110 100
575-3-60
518 632 23.7 132.0 23.7 132 23.7 132 77.0 179.4 100 90
380/415-3-50
342 440 28.6 174.0 28.6 174 28.6 174 92.9 231.1 110 110
UNIT SIZE
30MPW
VOLTS
NAMEPLATE
VOLTAGE COMPRESSOR A1 COMPRESSOR B1 COMPRESSOR (A/B)2 UNIT
MIN MAX RLA (EA) LRA (EA) RLA (EA) LRA (EA) RLA (EA) LRA (EA) MCA ICF MOCP REC FUSE
032
208/230-3-60 187 253 42.0 340 42.0 340
N/A N/A
94.5 382.0 125 110
460-3-60 414 508 21.0 179 21.0 179 47.3 200.0 60 60
575-3-60 518 632 17.0 132 17.0 132 38.3 149.0 50 45
AWG — American Wire Gage
ICF — Maximum instantaneous current flow during starting
kcmil — Thousand circular mils
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps (for wire sizing). Complies with NEC,
Section 430-24.
MOCP — Maximum Overcurrent Protection
Rec
Fuse
— Recommended dual element fuse amps (150% of compres-
sor RLA). Size up to the next standard fuse size.
RLA — Rated Load Amps
To Next Page
Loading...
