Field Control Wiring | York R-407C guide

Field Control Wiring

Wiring Notes:

1.Wiring shown indicates typical wiring.

2.All wiring is Class 2, low voltage.

3.Maximum power available from the 24 VAC terminal is 40 VA.

4.Use shielded wire where shown.

7 Wire Thermostat

COMMON

R (24VAC)

Y1 (Cool Stage 1)

Y2 (Cool Stage 2)

	G (Fan)

Space Sensor
			* Use Shielded Wire
1K Nickel	Signal		* Use Shielded Wire
1K Nickel	Signal
RTD Sensor	Common
1.5K Adjust	Signal		* Use Shielded Wire
1.5K Adjust	Signal
Potentiometer	Common

CO2 Sensor
	Signal		* Use Shielded Wire
			* Use Shielded Wire
0-5V Output
0-5V Output	Common
	Common

COM	R (24 VAC)	Y1	Y2			G		SS+ SS- SSA+ SSA- IAQ+ IAQ-	R (24 VAC)	OCC SD SMK HR COM
1	2	3	4	5	6	7	8	9 10 11 12 13 14 15 16		17 18 19 20 21
							SHIELD		SHIELD

Note, 24VAC switch voltage must be sourced from the unit. Use of another power source external of the unit may cause equipment damage.

Occupied /

Unoccupied Input

Shutdown Input

Smoke Purge Input

VAV Heat	24 VAC Signal
Relay Output	Common

Closed = Occupied

Open = Unoccupied

Closed = Shutdown

Open = Normal

Closed = Smoke Purge

Open = Normal

Note: VAV Heat Relay output shall be used to

command the VAV boxesLD06158 to open full.

FIG. 5 – FIELD CONTROL WIRING

34	YORK INTERNATIONAL

Image 34

York R-407C manual Field Control Wiring

Contents

Packaged Rooftop Air Conditioning Units 407C Optimized Through 65 Tons Table of Contents Nomenclature Basic Model Number Introduction FEATURES/BENEFITSEcological and Economical Design Install with Ease and Safety ServiceabilityReliable Scroll Compressor Technology Introduction Physical Data Physical Data Physical Data Cont’d Rigging Application DataLocation Economizer Building Exhaust Systems Harsh Environments Condenser and Evaporator Coil ProtectionRoof Curb Given Selection ProcedureAcoustical Considerations Select Unit Cooling Performance Data 50 Ton Model Cooling Performance Data 50 TON Model Cooling Performance Data 50 TON Model CONT’D Cooling Performance Data 55 Ton Model Cooling Performance Data 55 TON Model Cooling Performance Data 55 TON Model CONT’D Cooling Performance Data 60 Ton Model Cooling Performance Data 60 TON Model Cooling Performance Data 60 TON Model CONT’D Cooling Performance Data 65 Ton Model Cooling Performance Data 65 TON Model Cooling 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 Load Definitions Electrical Service SizingElectrical Data Compressors Premium Efficiency Supply and Exhaust FAN Motor ODP or TefcHigh Efficiency Condenser FAN Motors / Each Control Sequences for ALL Units Unoccupied / Occupied SwitchingControls General Ventilation Control Sequences Exhaust Control Sequences LOW Ambient Operation Smoke Purge Sequences VAV Specific Sequences Cooling Operation Cooling Operation Thermostat Control Stand Alone ControlCV Specific Sequences Stage 1 Y1 Call Power Wiring SINGLE-POINT Power Supply Wiring SINGLE-POINT Power Supply Wiring With NON-FUSED Disconnect SINGLE-POINT Power Supply Wiring with NON-FUSED Disconnect DUAL-POINT Power Supply Wiring DUAL-POINT Power Supply Wiring Field Control Wiring Field Control Wiring Drawing General ArrangementBottom Supply Bottom Return Left or Right Rear Return Supply General Arrangement Drawing Curb Layout Drawing Curb Layout Drawing Supply AIR System Guide SpecificationsConstruction Bearings and Drives AIR Inlet System Power SupplyAIR Filtering System Refrigeration System Controls Accessories and OptionsEconomizers Condenser Coil Protection Relief SystemEvaporator Coil Protection Suction and Discharge Pressure Transducers moni York International York International Proud Sponsor Olympic Team