York R134A Benutzerhandbuch

JOHNSON CONTROLS

124

LEGEND

C.B.

CIRCUIT BREAKER

D.E.

DUAL ELEMENT FUSE

DISC SW

DISCONNECT SWITCH

FACT CB

FACTORY-MOUNTED CIRCUIT BREAKER

FLA

FULL LOAD AMPS

HERTZ

MAX

MAXIMUM

MCA

MINIMUM CIRCUIT AMPACITY

MIN

MINIMUM

MIN NF

MINIMUM NON-FUSED

RLA

RATED LOAD AMPS

S.P. WIRE

SINGLE-POINT WIRING

Electrical Notes

NOTES:
1.  U.L. Label is provided on 50 and 60 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.

1. As standard, all units have single point power connection. Contact factory for information regarding dual

point power units.

2. Maximum Inverse Time Circuit Breaker or Dual Element Fuse - 225% of the largest compressor RLA

plus the sum of all other loads per NEC 440.22 (A).

3. 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

4. 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.

5.   RLA - Rated Load Amps - rated in accordance with UL standard 1995.
6.   Local codes may take precedence.
7.   Control KVA includes operational controls and evaporator heaters.
8.   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

380-400/50/3

28A

380/60/3

29A

460/60/3

23A

9. Voltage Utilization Range:

Rated Voltage

Utilization Range

380-415/50/3

360 - 440

380/60/3

342 - 402

460/60/3

414 - 508