Copeland K4 Application Engineering Bulletin

SEPTEMBER 2024
Application Engineering
Application Guidelines For K4 Refrigeration Copeland Scroll
Compressors 7.5 - 15 Horsepower
BULLETIN NO: AE4-1302 R12
Contents
Safety
Important Safety Information
Responsibilities, Qualifications and Training
Terminal Venting and Other Pressurized System
Hazards
Flammable Refrigerant Hazards
Electrical Hazards
Hot Surface and Fire Hazards
Lifting Hazards
POE Oil Hazards
Precautions
Signal Word Definitions
Introduction
Nomenclature
Operating Envelope
Liquid or Vapor Injection
Accumulators
Superheat Requirements
Crankcase Heat
Discharge Line Thermostat
Pressure Controls
IPR Valve
Motor Protection
Programmable Logic Controller Requirements
Phase Protection
Module and Sensor Functional Check
Module Voltage Supply Troubleshooting
Compressor Voltage Supply Troubleshooting
Oil Type
Oil Management for Rack Applications
Discharge Mufflers
Compressor Mounting
Mounting for Rack Systems
Condensing Units- For 7.5-15 H.P.
2 Tubing Considerations
2 Connection Fittings
Three Phase Scroll Compressors - Directional
2 Dependence
3 Deep Vacuum Operation
3 Unbrazing System Components
3 High Potential (Hipot) Testing
3 Copeland Scroll Functional Check
3 General Guidelines and More Information
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BULLETIN AE4-1302 R12
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