Table Of Contents - Carrier 50SS018-060 Installation, Start-Up And Service Instructions Manual

Table of Contents

Safety Considerations1
Unit 50Sx With Optional Base Rail Shown1
Table Of Contents1
General1
Legend2
— Dimensions; Units 50Ss018-042 Without Base Rail2
Left Side View2
Front View2
— Roof Curb Dimensions12
Receiving And Installation13
Step 1 - Check Equipment13
Identify Unit13
Step 2 - Provide Unit Support13
Roof Curb13
Slab Mount13
Step 3 - Provide Clearances13
Step 4 - Rig And Place Unit13
Notice To Riggers14
Suggested Rigging For Units Without Base Rail14
Physical Data15
Area Not To Be Drilled16
Typical Installation16
Step 5 - Select And Install Ductwork16
Converting Horizontal Discharge16
Evaporator Coil Access Panel17
Indoor Blower Access Panel18
Fan Motor Leads18
Blower Shelf And Housing18
Converting Horizontal Discharge Units18
To Downflow (Vertical) Discharge18
Field-Fabricated Duct Cover19
Filler Bracket And Blower Shelf20
Housing Placed For Vertical Airflow20
Accessory Duct Flange Kit Installation20
Step 6 - Provide For Condensate Disposal20
Condensate Trap21
High-Voltage Connections21
Routing Power Leads Into Unit21
Step 7 - Install Electrical Connections21
Connecting Ground Lead To Wire-Binding Screw21
Routing Control Power Wires - Std21
Electrical Data22
Electrical Data — 50Sx Units23
Special Procedures For 208-V Operation24
Typical Duct Panel Knockouts24
Line Power Connections24
Routing Control Power Wires - Icm Units (24 V)24
Easy Select Interface Board25
Integrated Control Motor Wiring Schematic25
Pre-Start-Up26
Checking And Adjusting Refrigerant Charge27
Check For Refrigerant Leaks27
Checking Cooling Control Operation27
Start-Up Cooling Section And Make Adjustments27
Superheat Charging Table28
Superheat Charging Table, 50Ss03029
Superheat Charging Table, 50Ss03629
Superheat Charging Table, 50Ss04229
Indoor Airflow And Airflow Adjustments34
Aux Heat Range (Vio)34
Unit Controls34
Compressor Overload34
Sequence Of Operation35
Dry Coil Air Delivery36
Wet Coil Pressure Drop39
Accessory Electric Heater Pressure Drop39
Filter Pressure Drop39
Maintenance40
Evaporator Blower And Motor40
Air Filter40
Unit Top Removal40
Condenser Coil, Evaporator Coil, And Condensate Drain Pan41
Electrical Controls And Wiring41
Refrigerant Circuit41
Evaporator Airflow41
Metering Devices41
Liquid Line Strainer41
Troubleshooting Cooling Chart42
Packaged Service Training46
Start-Up Checklist48