York YCWS0313SC, Инструкция по установке, эксплуатации и обслуживанию, Страница: 95 / 104

FORM 201.24-NM2
95
YORK INTERNATIONAL
NOTES (for Electrical Data on pages 92-94)
1. Minimum Circuit Ampacity (MCA) is based on 125% of the rated load amps for the largest motor plus 100%
of the rated load amps for all other loads included in the circuit, per N.E.C. Article 430-24. If the optional
Factory-mounted Control Transformer is provided, add the following MCA values to the electrical tables for
the system providing power to the transformer: -50, add 5 amps;
2. The minimum recommended disconnect switch is based on 115% of the rated load amps for all loads included
in the circuit, per N.E.C. Article 440.
3. Minimum fuse size is based upon 150% of the rated load amps for the largest motor plus 100% of the rated load
amps for all other loads included in the circuit to avoid nuisance trips at start-up due to lock rotor amps. It is not
recommended in applications where brown outs, frequent starting and stopping of the unit, and/or operation at
ambient temperatures in excess of 35°C (95°F) is anticipated.
4. Maximum fuse size is based upon 225% of the rated load amps for the largest motor plus 100% of the rated
load amps for all other loads included in the circuit, per N.E.C. Article 440-22.
5. Circuit breakers supplied by third party vendors must be certified by local electrical standards. Maximum size
is based on 225% of the rated load amps for the largest motor plus 100% of the rated load amps for all other
loads included in the circuit.
6. The “INCOMING WIRE RANGE” is the minimum and maximum wire size that can be accommodated by the
unit wiring lugs. The (2) preceding the wire range indicates the number of termination points available per
phase of the wire range specified. Actual wire size and number of wires per phase must be determined based on
the National Electrical Code, using copper connectors only. Field wiring must also comply with local codes.
7. A ground lug is provided for each compressor system to accommodate a field grounding conductor per N.E.C.
Table 250-95. A control circuit grounding lug is also supplied.
8. The supplied disconnect is a “Disconnecting Means” as defined in the N.E.C. 100, and is intended for isolating
the unit for the available power supply to perform maintenance and troubleshooting. This disconnect is not
intended to be a Load Break Device.
9. Field Wiring by others which complies to the National Electrical Code & Local Codes.
ELECTRICAL DATA NOTES
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