Carrier 50KC04-06 - Page 76

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Fig. B — Unit Wiring Diagram (Controls) for Sizes A04-A06 (208/230-1-60, 208/230-3-60, 460-3-60, 575-3-60)

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Table of Contents1
Safety Considerations1
Unit Arrangement and Access2
General2
Routine Maintenance2
Seasonal Maintenance3
Supply Fan (Blower) Section4
Supply Fan (Belt-Drive)4
Cooling5
Condenser Coil5
Condenser Coil Maintenance and Cleaning5
- Recommendation5
Evaporator Coil7
Refrigerant System Pressure Access Ports10
Puron® (R-410A) Refrigerant11
Refrigerant Charge11
Compressor11
R410A Refrigerant12
Filter Drier17
Condenser Fan Adjustment17
Convenience Outlets18
Non-Powered Type18
Unit-Powered Type18
Duty Cycle19
Maintenance19
Fuse on Powered Type19
Using Unit-Mounted Convenience Outlets19
Smoke Detectors19
System19
Controller19
Sensor19
Smoke Detector Locations20
Completing Installation of Return Air Smoke21
- Sensor21
FIOP Smoke Detector Wiring and Response21
Sensor and Controller Tests22
Protective Devices25
Compressor Protection25
Relief Device25
Control Circuit, 24-V25
Electric Heaters25
Single Point Boxes and Supplementary Fuses26
Completing Heater Installation27
Premierlink™ Controller27
Rtu-Open Control System27
Economizer Systems28
Economi$Er IV32
Economi$Er X (Factory Option)38
Wiring Diagrams49
Cooling52
Pre-Start-Up52
Start-Up, General52
Unit Preparation52
Return-Air Filters52
Outdoor-Air Inlet Screens52
Compressor Mounting52
Internal Wiring52
Refrigerant Service Ports52
Compressor Rotation52
Ventilation (Continuous Fan)53
Start-Up, Premierlink Controls53
Start-Up, Rtu-Open Control53
Operating Sequence53
Base Unit Controls53
Cooling - Units Without Economizer53
Heating - Units Without Economizer53
Cooling, Unit with Economi$Er IV53
Heating, Unit with Economi$Er IV53
Demand Controlled Ventilation53
Fastener Torque Values54
Appendix A - Model Number Significance55
Appendix B - Physical Data57
Appendix C - Fan Performance59
Appendix D - Electrical Data67
Appendix E - Wiring Diagrams75
Appendix F - Motormaster Sensor80
Locations80
Start-Up Checklist83

Carrier 50KC04-06 - Page 76

Table of Contents

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