Carrier 50TCQA04 Installation Instructions Manual

Also see for WeatherMaker 50TCQA07: Installation instructions Installation instructions Service and maintenance instructions

1Installation Instructions50TCQSingle Package RooftopHeat Pumpwith Puronr (R---410A) RefrigerantSizes 04 --- 0750TCQ 07 units for installation in the United States contain use of Carrier's Staged AirVolume (SAV™) 2-speed indoor fan control system. This complies with the U.S. Departmentof Energy (DOE) efficiency standard of 2018.50TCQ 07 units for installation outside the United States may or may not contain use of theSAV 2-speed indoor fan control system as they are not required to comply with the U.S.Department of Energy (DOE) efficiency standard of 2018.For specific details on operation of the Carrier SAV 2-speed indoor fan system refer to theVariable Frequency Drive (VFD) Factory-Installed Option 2-Speed Motor Control Installation,Setup and Troubleshooting manual.NOTE: Read the entire instruction manual before startingthe installation.TABLE OF CONTENTSSAFETY CONSIDERATIONS 3. . . . . . . . . . . . . . . . . . . .Rated Indoor Airflow (cfm) 4. . . . . . . . . . . . . . . . . . . . .REFRIGERATION SYSTEM COMPONENTS 7. . . . . . .INSTALLATION 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Jobsite Survey 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Step 1 -- Plan for Unit Location 9. . . . . . . . . . . . . . . . . .Roof Mount 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Step 2 -- Plan for Sequence of Unit Installation 9. . . . . .Curb--Mounted Installation 9. . . . . . . . . . . . . . . . . . .Pad--Mounted Installation 9. . . . . . . . . . . . . . . . . . . .Frame--Mounted Installation 9. . . . . . . . . . . . . . . . . .Step 3 -- Inspect Unit 9. . . . . . . . . . . . . . . . . . . . . . . . . . .Step 4 -- Provide Unit Support 9. . . . . . . . . . . . . . . . . . .Roof Curb Mount 9. . . . . . . . . . . . . . . . . . . . . . . . . .Slab Mount (Horizontal Units Only) 11. . . . . . . . . .Alternate Unit Support(In Lieu of Curb or Slab Mount) 11. . . . . . . . . . . . .Step 5 -- Field Fabricate Ductwork 11. . . . . . . . . . . . . . .For Units with Accessory Electric Heaters 11. . . . .Step 6 -- Rig and Place Unit 11. . . . . . . . . . . . . . . . . . . .Positioning on Curb 12. . . . . . . . . . . . . . . . . . . . . . .Step 7 -- Convert to Horizontal and ConnectDuctwork 12. . . . . . . . . . . . . . . . . . . . . . . . . . .Step 8 -- Install Outside Air Hood 13. . . . . . . . . . . . . . .Economizer and Two--Position Damper HoodPackage Removal and Setup — Factory Option 13. .Economizer Hood and Two--Position Hood 13. . . . .Step 9 -- Units with Hinged Panels Only 14. . . . . . . . . .Step 10 -- Install External Condensate Trapand Line 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .Step 11 -- Make Electrical Connections 15. . . . . . . . . . .Field Power Supply 15. . . . . . . . . . . . . . . . . . . . . . . .Units with Factory--InstalledNon--Fused Disconnect 18. . . . . . . . . . . . . . . . . . . . .Units Without Factory--InstalledNon--Fused Disconnect 18. . . . . . . . . . . . . . . . . . . . .All Units 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Convenience Outlets 18. . . . . . . . . . . . . . . . . . . . . . .Factory--Option Thru--Base Connections 20. . . . . .Units Without Thru--Base Connections 20. . . . . . . .Field Control Wiring 20. . . . . . . . . . . . . . . . . . . . . . .Thermostat 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Unit Without Thru--Base Connection Kit 21. . . . . . .Heat Anticipator Settings 21. . . . . . . . . . . . . . . . . . .Central Terminal Board 21. . . . . . . . . . . . . . . . . . . . . .Commercial Defrost Control 21. . . . . . . . . . . . . . . . . .Electric Heaters 23. . . . . . . . . . . . . . . . . . . . . . . . . . . .Single Point Boxes and Supplementary Fuses 24. . .Single Point Boxes Without Fuses 24. . . . . . . . . . . .Low--Voltage Control Connections 24. . . . . . . . . . . .