Lennox International Inc 4HP18LT manual Issue

Page 17

L - Liquid S- Suction

Values provided above are typical pressures. Indoor unit matchup, indoor air quality equipment, and indoor load will case pressures to vary.

Table 8

506470-01

Issue 1007

Page 17

Image 17

Contents Lennox International Inc. Company Save these instructions for future referenceInstallation Clearances InstallationGeneral Torque TableSlab Mounting Electrical WiringSlab Mounting Roof MountingRefrigerant Piping Installing Refrigerant LineOutside Unit Placement & Installation PlacementLine Set Isolation Refrigerant Line Set DiametersRefrigerant Line Sets Installing Horizontal Runs Refrigerant Line Sets Transition from Vertical to Horizontal Required Euipment Flushing ProcedureExpansion Valve Systems Refrigerant Metering DeviceTo Close Liquid or Suction Line Service Valve To Access the Schrader PortEvacuation Using an Electronic Leak DetectorIssue Refrigerant Charging Refrigerant Charge AdjustmentSTART-UP Issue R410A Temperature/Pressure Chart Approach Values for TXV Systems Issue Operation Compressor Delay Defrost Control Timing PinsTime Delay Pressure Switch CircuitLED Description System Diagnostic ModuleInterpreting the Diagnostic LEDs 24VAC Power Wiring Miswired Module Codes Thermostat Demand WiringMaintenance Homeowner Information Inspect and clean outdoor coilTemperature Setting Levers System Switch Fan SwitchTemperature Indicator Indicating LightStart-Up and Performance Checklist Wire Diagram Issue