Carrier 50HCQ12 Installation Instructions Manual

Also see for 50HCQ12: Installation instructions

50HCQ12Single Package RooftopHeat Pumpwith Puronr (R---410A) RefrigerantSize 12Installation InstructionsNOTE: Read the entire instruction manual before startingthe installationTABLE OF CONTENTSSAFETY CONSIDERATIONS 2. . . . . . . . . . . . . . . . . . . .INSTALLATION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Jobsite Survey 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Step 1 -- Plan for Unit Location 4. . . . . . . . . . . . . . . . . .Roof Mount 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Step 2 -- Plan for Sequence of Unit Installation 5. . . . . .Curb--Mount Installation 5. . . . . . . . . . . . . . . . . . . . .Pad--Mount Installation 5. . . . . . . . . . . . . . . . . . . . . .Frame--Mount Installation 5. . . . . . . . . . . . . . . . . . . .Step 3 -- Inspect Unit 5. . . . . . . . . . . . . . . . . . . . . . . . . . .Step 4 -- Provide Unit Support 5. . . . . . . . . . . . . . . . . . .Roof Curb Mount 5. . . . . . . . . . . . . . . . . . . . . . . . . .Slab Mount (Horizontal Units Only) 5. . . . . . . . . . .Alternate Unit Support 5. . . . . . . . . . . . . . . . . . . . . .Step 5 -- Field Fabricate Ductwork 7. . . . . . . . . . . . . . . .For Units with Accessory Electric Heaters 7. . . . . .Step 6 -- Rig and Place Unit 7. . . . . . . . . . . . . . . . . . . . .Step 7 -- Convert to Horizontal & Connect Ductwork 8. .Step 8 -- Install Outside Air Hood 9. . . . . . . . . . . . . . . .Economizer Hood Removal and Setup 9. . . . . . . . .Two Position Damper Hood Removal and Setup 9. . .Economizer Hood and Two--Position Hood 10. . . . .Step 9 -- Install External Condensate Trap and Line 10. . .Step 10 -- Make Electrical Connections 11. . . . . . . . . . .Field Power Supply 11. . . . . . . . . . . . . . . . . . . . . . . .Units without Factory--Installed Disconnect 13. . . .Units with Factory--Installed Disconnect 13. . . . . . .Convenience Outlets 13. . . . . . . . . . . . . . . . . . . . . . .Factory--Option Thru--Base Connections 15. . . . . . .Units without Thru--Base Connections 15. . . . . . . . .Field Control Wiring 15. . . . . . . . . . . . . . . . . . . . . . .Thermostat 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Unit without Thru--Base Conversion Kit 16. . . . . . .Heat Anticipator Settings 16. . . . . . . . . . . . . . . . . . .Electric Heaters 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Single Point Boxes 17. . . . . . . . . . . . . . . . . . . . . . . . . .Heater Low--Voltage Control Connections 17. . . . . .Outdoor Air Enthalpy Control 18. . . . . . . . . . . . . . . . .Differential Enthalpy Control 18. . . . . . . . . . . . . . . .Return Air Enthalpy Sensor 18. . . . . . . . . . . . . . . . .PremierLinkt (Factory Option) 19. . . . . . . . . . . . . . . . .Supply Air Temperature (SAT) Sensor 19. . . . . . . . .Outdoor Air Temperature (OAT) Sensor 21. . . . . . .EconoMi$er2 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field Connections 21. . . . . . . . . . . . . . . . . . . . . . . . . .Space Sensors 21. . . . . . . . . . . . . . . . . . . . . . . . . . . .Connect Thermostat 21. . . . . . . . . . . . . . . . . . . . . . .Configure the Unit for Thermostat Mode 24. . . . . .Economizer Controls 24. . . . . . . . . . . . . . . . . . . . . . . .Indoor Air Quality (CO2 sensor) 24. . . . . . . . . . . . .Outdoor Air Quality Sensor 24. . . . . . . . . . . . . . . . .Smoke Detector/Fire Shutdown (FSD) 25. . . . . . . . .Filter Status Switch 25. . . . . . . . . . . . . . . . . . . . . . . .Supply Fan Status Switch 25. . . . . . . . . . . . . . . . . . .Remote Occupied Switch 25. . . . . . . . . . . . . . . . . . .Space Relative Humidity Sensor 26. . . . . . . . . . . . .Power Exhaust (output) 26. . . . . . . . . . . . . . . . . . . . .CCN Communication Bus 26. . . . . . . . . . . . . . . . . .RTU Open Control System 27. . . . . . . . . . . . . . . . . . . . .Supply Air Temperature (SAT) Sensor 29. . . . . . . . .Outdoor Air Temperature (OAT) Sensor 29. . . . . . .EconoMi$er2 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Field Connections 30. . . . . . . . . . . . . . . . . . . . . . . . . .Space Temperature (SPT) Sensors 30. . . . . . . . . . . .Indoor Air Quality (CO2 ) Sensor 30. . . . . . . . . . . . .Outdoor Air Quality Sensor 31. . . . . . . . . . . . . . . . .Connecting Discrete Inputs 31. . . . . . . . . . . . . . . . . .Communication Wiring -- Protocols 32. . . . . . . . . . . .General 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Local Access 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .RTU Open Troubleshooting 32. . . . . . . . . . . . . . . . .