Lennox International Inc CONDENSING UNITS manual

CRANKCASE HEATER (HR1)

HIGH PRESSURE SWITCH (S4)

CRANKCASE THERMOSTAT (S40)

Figure 16. Typical Factory Wiring Diagram (Copeland Compressor)

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Lennox International Inc CONDENSING UNITS, Merit Series 14ACX Units Typical Factory Wiring Diagram Copeland Compressor

Contents

Table of Contents Shipping and Packing ListGeneral Condensing Units Unit Dimensions − Inches mm Side View Typical Unit Parts Arrangement Model Number Identification AC X −024 − 230 −13 Operating Manifold Gauge Set and Service Valves Using Manifold Gauge SETOperating Service Valves Torque Requirements 11 12 98 7 6 Recovering Refrigerant from Existing System 1DISCONNECT PowerRecovering Refrigerant 2CONNECT Manifold Gauge SET New Unit Placement Clearance on ALL Sides Minimum Clearance Above UnitMinimum Clearance Between TWO Units Positioning Considerations Removing and Installing Louvers Placing Unit on SlabRoof Mounting Step New or Replacement Line Set Mineral oils are not compatible with HFC−410A. If oil Installation Refrigerant Line SET AllingVertical Runs NEW Construction Shown Refrigerant Line SET From Vertical to Horizontal Brazing Connections Brazing Procedures 1CUT and Debur Wrap Service Valves Flow Nitrogen6BRAZE Line SET 7PREPARATION for Next Step 2CONNECT Gauges and Equipment for Flushing Procedure Flushing Line Set and Indoor Coil Installing Indoor Metering Device Indoor Expansion Valve InstallationSensing Bulb Installation Equalizer Line Installation Leak Test Line Set and Indoor Coil Leak detector must be capable of sensing HFC refrigerant Evacuating Line Set and Indoor Coil Connect Gauge SET Electrical 24VAC Transformer Single Phase High Voltage / Ground Wires LOW Voltage Control Wiring Typical Factory Wiring Diagram Copeland Compressor Typical Factory Wiring Diagram Interlink Compressor Connections for Testing and Charging Servicing Units Delivered Void of ChargeUnit Start−Up System Refrigerant Checking AIR Flow AT Indoor Coil Start Determine how refrigerant is metered Calculating System Charge for Outdoor Unit Void of Charge Below HFC−410A Subcooling TXV Charge Start Measure outdoor ambient temperature Superheat RFC Problem exists with some component in the system Unit Components MaintenanceSystem Operation Homeowner Start−Up and Performance Checklist