Allied Air Enterprises 4HP16LT manual Two Stage Wire Diagram

Page 30

Two Stage Wire Diagram

506468-01

Issue 1004

Page 30

Image 30

Contents 4HP16LT Series General Installation ClearancesTorque Table Fastener TorqueSlab Mounting Electrical WiringSlab Mounting Roof MountingThermostat Designations Without Auxiliary HeatWith Auxiliary Heat Outside Unit Placement Installation Installing Refrigerant LineBrazing Connection Procedure Refrigerant Line Sets Installing Horizontal Runs Refrigerant Line Sets Transition from Vertical to HorizontalFlushing Existing Line Set and Indoor Coil R22 refrigerant will be used to flush the systemFlushing Connections Liquid and Suction Line Service Valves Refrigerant Metering DeviceManifold Gauge Set To Open Liquid or Suction Line Service Valve Service ValveBall Type Service Valve Valve Open To Close Liquid or Suction Line Service ValveEvacuation Refrigerant Charge Adjustment Ambient temperatureRefrigerant Charging Charge Using Weigh-In Method Cooling CycleR410A Temperature/Pressure Chart Blocking Outdoor CoilNormal Operating Pressures Check Charge Using Normal Operating Pressures Approach Values for TXV SystemsOperation Filter DrierDefrost Board Pressure Switch Connections Sensor Temp. / Resistance RangeDelay Mode Issue Defrost Control Board Diagnostic LEDs Flash Codes System Diagnostic ModuleInterpreting the Diagnostic LEDs LED Description24VAC Power Wiring Short CyclingMiswired Module Troubleshooting Thermostat Demand WiringMiswired Module Codes Maintenance Case of extended power outage Heat Pump OperationThermostat Operation Preservice Check Heating Start-Up and Performance ChecklistCooling Sequence of OperationSingle Stage Wire Diagram Two Stage Wire Diagram