York R-407C manual Power Wiring, SINGLE-POINT Power Supply Wiring

Page 31

FORM 100.50-EG1

Power Wiring

SINGLE-POINT POWER SUPPLY WIRING

Field Power Supply

Electrical / Controls Box

Power Side

1L1 1L2 1L3

GND

TB1

Line 1

Line 2

Line 3

Earth

Ground

Control Side

Wiring Terminal

Block

LD06414

NOTES:

1.All field wiring must be provided through a field-supplied fused disconnect switch to the unit terminals (or optional molded disconnect switch).

2.All electrical wiring must be made in accordance with all N.E.C. and/or local code requirements.

3.Minimum Circuit Ampacity (MCA) is based on U.L. Standard 1995, Section 36.14 (N.E.C. Section 440.34).

4.Maximum Dual Element Fuse size is based on U.L. Standard 1995, Section 36.15 (N.E.C. Section 440.22)

5.Use copper conductors only.

6.On units with an optional disconnect switch, the supplied disconnect switch is a “Disconnecting Means” as defined in the N.E.C. Section 100, and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting. This disconnect switch is not intended to be a Load Break Device.

FIG. 2 – SINGLE-POINT POWER SUPPLY WIRING

YORK INTERNATIONAL

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Image 31

Contents 407C Optimized Through 65 Tons Packaged Rooftop Air Conditioning UnitsTable of Contents Basic Model Number NomenclatureIntroduction FEATURES/BENEFITSEcological and Economical Design Install with Ease and Safety ServiceabilityReliable Scroll Compressor Technology Introduction Physical Data Physical DataPhysical Data Cont’d Economizer Application DataLocation RiggingBuilding Exhaust Systems Harsh Environments Condenser and Evaporator Coil ProtectionRoof Curb Select Unit Selection ProcedureAcoustical Considerations GivenCooling Performance Data 50 TON Model Cooling Performance Data 50 Ton ModelCooling Performance Data 50 TON Model CONT’D Cooling Performance Data 55 TON Model Cooling Performance Data 55 Ton ModelCooling Performance Data 55 TON Model CONT’D Cooling Performance Data 60 TON Model Cooling Performance Data 60 Ton ModelCooling Performance Data 60 TON Model CONT’D Cooling Performance Data 65 TON Model Cooling Performance Data 65 Ton ModelCooling Performance Data 65 TON Model CONT’D 50 Through 65 TON Supply FAN Data Fan Performance50 Through 65 TON Supply FAN Data CONT’D 50 Through 65 TON Exhaust FAN Data Component Static Pressure Drops Inches of Water Column Filters Economizer Economizer Dampers Rigid Filter Manual or Compressors Electrical Service SizingElectrical Data Load DefinitionsCondenser FAN Motors / Each Supply and Exhaust FAN Motor ODP or TefcHigh Efficiency Premium EfficiencyGeneral Unoccupied / Occupied SwitchingControls Control Sequences for ALL UnitsExhaust Control Sequences Ventilation Control SequencesSmoke Purge Sequences LOW Ambient OperationCooling Operation VAV Specific SequencesStage 1 Y1 Call Stand Alone ControlCV Specific Sequences Cooling Operation Thermostat ControlSINGLE-POINT Power Supply Wiring Power WiringSINGLE-POINT Power Supply Wiring with NON-FUSED Disconnect SINGLE-POINT Power Supply Wiring With NON-FUSED DisconnectDUAL-POINT Power Supply Wiring DUAL-POINT Power Supply WiringField Control Wiring Field Control WiringDrawing General ArrangementBottom Supply Bottom Return General Arrangement Drawing Left or Right Rear Return SupplyCurb Layout Drawing Curb Layout DrawingBearings and Drives Guide SpecificationsConstruction Supply AIR SystemRefrigeration System Power SupplyAIR Filtering System AIR Inlet SystemControls Accessories and OptionsEconomizers Suction and Discharge Pressure Transducers moni Relief SystemEvaporator Coil Protection Condenser Coil ProtectionYork International York International Proud Sponsor Olympic Team