Lennox International Inc 506510-01 3ROUTE Control Wires, 4ROUTE High Voltage and Ground Wires

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3ROUTE CONTROL WIRES

Install low voltage control wiring from outdoor to indoor unit and from thermostat to indoor unit as illustrated. See Figures 10 and 10 for typical configurations.

ARun 24VAC control wires through hole with grommet.

B Make 24VAC control wire connections to Main Control.

NOTE AC control wires inside control panel.

NOTE

 

 

 

 

B

separation of field installed low and high voltage circuits.

NOTE For proper voltages, select thermostat wire (control wires)

gauge per table below.

 

 

 

 

 

 

 

 

 

 

 

 

MAIN CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WIRE RUN LENGTH

AWG# INSULATION TYPE

 

 

 

 

 

 

LESS THAN 100’ (30 METERS)

18

TEMPERATURE RATING

 

 

 

 

 

MORE THAN 100’ (30 METERS)

16

35ºC MINIMUM.

 

 

 

 

 

 

 

 

 

 

 

CONTROL PANEL

HOLE A

4ROUTE HIGH VOLTAGE AND GROUND WIRES

Any excess high voltage field wiring should be trimmed and secured away from any low voltage field wiring. To facilitate a conduit, a cutout is located in the bottom of the control panel. Connect conduit to the control panel using a proper conduit fitting.

PIPING PANEL

HIGH VOLTAGE

CONDUIT HOLE

WATERTIGHT

CONDUIT

FITTING

WATERTIGHT

FLEXIBLE

CONDUIT

TO SERVICE

DISCONNECT BOX

CONTROL PANEL

GROUND LUG

CONTACTOR

ELECTRICAL INLET (HIGH VOLTAGE)

WIRING ENTRY POINTS

ELECTRICAL INLET (CONTROL WIRING TAGE).

USE BUSHING PROVIDED IN BAG ASSEMBLY HERE.

ACCESS VIEW

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506510−01

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Contents Table of Contents GeneralShipping and Packing List AIR ConditionerUnit Dimensions − Inches mm and Parts Arrangement Side View Access ViewModel Number Identification Base with Elongated LegsControl BOX PLUMBING, Switches and Sensor ComponentsTypical Unit Parts Arrangement Operating Gauge Set and Service Valves Using Manifold Gauge SETOperating Service Valves Torque RequirementsTo Access Service Port Operating Angle Type Service ValveOperating Ball Type Service Valve Reinstall Stem CapRecovering Recovering Refrigerant from Existing SystemNew Outdoor Unit Placement Clearance on ALL Sides Minimum Clearance Above UnitMinimum Clearance Between TWO Units Positioning ConsiderationsRoof Mounting Elevating the UnitStabilizing Unit on Uneven Surfaces Outside Unit Placement Elevated Slab Mounting using Feet ExtendersSlab Mounting at Ground Level Stabilizing Unit on Uneven SurfacesRemoving and Installing Panels Access Panel RemovalAccess and Louvered Louvered Panel InstallationNew or Replacement Line Set Refrigerant Line SETLine SET Brazing Flushing Flushing the SystemUncased Coil Shown Line SET and Indoor Coil 1Flushing Line SET and Indoor Coil 2 Sensing Bulb InstallationEqualizer Line Installation Leak Testing the System Installing Isolation GrommetsLeak Test Line SET and Indoor CoilEvacuating Evacuating the SystemSize Circuit and Install Disconnect 2INSTALL ThermostatElectrical 24VAC Transformer3ROUTE Control Wires 4ROUTE High Voltage and Ground WiresTypical XC17 Wiring Main Control Jumpers and Terminals Main Control AGEMain Control Jumpers and Terminals FANField Control Wiring Flat metal jumperOn−board link Connections for Testing and Charging Gauge SETServicing Units Delivered Void of Charge Unit Start−UpAction AirflowIndoor Coil Weigh Charge METHOD? Determine byRequirements Calculating System Charge for Outdoor Unit Void of ChargeTest and Charge Method ApproachSubcooling Operating and Temperature Pressures HFC−410A Temperature Fahrenheit PsigSystem Operation Test Pins Function Ambient Sensor Temperature / Resistance Range High Discharge Sensor Temperature / Resistance Range Sensor Temperature / Resistance Range Resetting LED Alert CodesMain Control LED Alert Codes System LED Alert CodesAlert Status Compressor LED Alert Codes Detected in RUN High Pressure Switch Operation Low Pressure Switch Operation High Discharge Temperature Sensor Operation Maintenance Verifying Jumper Settings J2FAN Motor Control and Start UP Verifying LED Status CodesLED Codes and Sequence of Operations Fan Motor Board Unit LED CodesControl Panel Testing for External Power to Fan Control Fan Motor Test FAN Motor Surge Protection Fan Motor Surge Protection DeviceStart UP Checks XC17 Start−Up and Performance ChecklistCooling Mode Subcooling