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20 PKG-SVX14A-EN
electrical
requirements
Installation
RLA LRA qty. hp FLA qty. hp FLA qty
SC*H0303.... 208-230V/60Hz/3Ph 12.9 77.0
0.5
2.21
1
18.3 30 3.15 19.3 30
SC*H0304.... 460V/60Hz/3Ph 5.7 35.0 1.00 8.1 15 1.42 8.5 15
SC*H0305.... 575V/60Hz/3Ph 4.8 31.0 0.80 6.8 15 1.14 7.1 15
SC*H0503.... 208-230V/60Hz/3Ph 22.9 155.0 5.00 33.6 50 5.81 34.4 50
SC*H0504.... 460V/60Hz/3Ph 10.7 75.0 2.50 15.9 25 2.63 16.0 25
SC*H0505.... 575V/60Hz/3Ph 8.5 54.0 1.50 12.1 20 2.10 12.7 20
SC*H0753.... 208-230V/60Hz/3Ph 27.9 164.0 6.30 41.2 60 5.81 40.7 60
SC*H0754.... 460V/60Hz/3Ph 13.6 100.0 3.10 20.1 30 2.63 19.6 30
SC*H0755.... 575V/60Hz/3Ph 10.2 78.0 2.40 15.2 25 2.10 14.9 25
SC*H1003.... 208-230V/60Hz/3Ph 22.9 155.0 6.30 57.8 80 13.70 65.2 80
SC*H1004.... 460V/60Hz/3Ph 10.7 75.0 3.10 27.2 35 6.18 30.3 40
SC*H1005.... 575V/60Hz/3Ph 8.5 54.0 2.40 21.5 30 4.94 24.1 30
SC*H1203.... 208-230V/60Hz/3Ph 25.4 147.7 9.40 66.5 90 13.70 70.8 90
SC*H1204.... 460V/60Hz/3Ph 11.8 75.0 4.60 31.2 40 6.18 32.7 45
SC*H1205.... 575V/60Hz/3Ph 9.3 59.6 3.40 24.4 30 4.94 25.9 35
SC*H1503.... 208-230V/60Hz/3Ph 27.9 164.0 9.40 72.2 100 13.70 76.5 100
SC*H1504.... 460V/60Hz/3Ph 13.6 100.0 4.60 35.2 45 6.18 36.8 50
SC*H1505.... 575V/60Hz/3Ph 10.9 78.0 3.40 27.9 35 4.94 29.5 35
12 2
tons MFS / MCBmodel voltage
compressor evap. fan motor
min. circuit
am
p
acit
y
10 2 2 1
21
evaporator standard motor evaporator oversized motor
evap. fan motor
MFS /
MCB
min. circuit
am
p
acit
y
51
21
51
31 11
5111
7.5 1 2 1
31 51
15 2 3 1
Table I-ER-1. Model SCWH/SCRH electrical data
WARNING
Hazardous Voltage!
Disconnect all electric power,
including remote disconnects before
servicing. Follow proper lockout/
tagout procedures to ensure power
cannot be inadvertently energized.
Failure to disconnect power before
servicing could result in death or
serious injury.
CAUTION
Use Copper Conductors Only!
Unit terminals are not designed to
accept other type conductors. Failure
to use copper conductors may result
in equipment damage.
Notes:
1. Voltage range:
Nominal voltage 208 - 230V - acceptable range: 187 - 253V
Nominal voltage 460V - acceptable range: 414 - 506V
Nominal voltage 575V - acceptable range: 518 - 633V
2. Ampacity is calculated per UL formula, ampacity = (1.25 x compressor RLA + sum of the second compressor RLA (if
used) + evaporator motor FLA
3. Maximum fuse size is calculated per UL formula, MFS = (2.25 x compressor RLA) + sum of second compressor RLA (if
used) + evaporator motor FLA