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TECHNICAL DATA
1.
As standard, all units have single point power connection. Contact factory for information regarding dual
point power units.
2.
Maximum Inverse Time Ciruit Breaker - 250% of the rated input current of the drive per NEC 430.52 (C1). ]
3.
Maximum Dual Element (Time Delay) Fuse - 225% of the rated input current of the drive per NEC 430.52
(C1).
4.
MCA - Minimum Circuit Ampacity - 125% of the largest compressor RLA plus 100% of the remaining
compressor RLA's plus the sum of all condenser fan FLA's per NEC 440.33.
5.
Recommended time delay or dual element fuse size - 150%of the largest compressor RLA plus 100% of the
remaining compressor RLA's plus the sum of all condenser fan FLA's.
6.
RLA - Rated Load Amps - rated in accordance with UL standard 1995 at 400VAC.
7.
Local codes may take precedence.
8.
Control KVA includes operational controls and evaporator heaters.
9.
System inrush current is less than RLA due to the use of York Variable-speed Drive technology. Typical
Compressor Starting Current ( first four seconds of startup):
Rated Voltage
Typical Starting Current per Compressor
400/50/3
10. Optional Compressor Service Disconnect switch is available on all units.
11.
Voltage Utilization Range:
Rated Voltage
380-415/50/3
12. Condenser fan FLA applies to both low sound and ultra quiet fans.
LEGEND
C.B.
CIRCUIT BREAKER
D.E.
DUAL ELEMENT FUSE
DISC SW
DISCONNECT SWITCH
FACT CB
FACTORY-MOUNTED CIRCUIT BREAKER
FLA
FULL LOAD AMPS
HZ
HERTZ
MAX
MAXIMUM
MCA
MINIMUM CIRCUIT AMPACITY
MIN
MINIMUM
MIN NF
MINIMUM NON-FUSED
RLA
RATED LOAD AMPS
S.P. WIRE
SINGLE-POINT WIRING
NOTES:
1. U.L. Label is provided on 50 Hz units for these electrical wiring configurations.
2. –– –– –– –– –– –– Dashed Line = Field Provided Wiring.
3. The above recommendations are based on the National Electric Code and using copper conductors only. Field wiring must also comply with
local codes. Group Rated breaker must be HACR type for cUL machines.
50
ELECTRICAL NOTES
28A
Utilization Range
360-440
FORM 201.21-NM2 (616)
VOLTAGE CODE
-50 = 380/415-3-50
JOHNSON CONTROLS
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