Emerson AE4-1395 User Manuals

Table of Contents

• Safety Instructions

  2
• Reasons to Retrofit

  7
• Safety Icon Explanation

  2
• Retrofit Applications To Avoid

  8
• Performance Modeling

  8
• Electrical Shock, Fire, or Injury to Persons

  3
• System Modifications

  8
• Safety Statements

  3
• Compressor Selection & Change-Out

  8
• Refrigerant Flow Control

  9
• Evaporator Air Flow

  9
• Nomenclature

  4
• Condenser Air Flow

  9
• Digital Compressor Operation

  4
• Modulation Control

  9
• How It Works

  4
• Operating Envelope

  4
• Pressure Testing

  9
• Solenoid Valve and Coil

  5
• Pressure Fluctuations

  5
• Piping

  5
• Modulation Troubleshooting

  10
• Start Up and Shut Down

  5
• Compressor Cycling

  5
• Procedure

  10
• Sound Characteristics

  5
• Internal Pressure Relief (IPR) Valve

  5
• Procedure

  10
• High Pressure Control

  5
• Scroll Compressor Functional Check

  11
• Low Pressure Control

  5
• Scroll Temperature Protection

  6
• Digital Cycle Example

  12
• Crankcase Heaters

  6
• 3 to 7.5 Ton Digital Scroll Cross Sectional View

  12
• Oil Type and Oil Removal

  6
• 8 to 15 Ton Digital Scroll Cross Sectional View

  13
• Power Factor

  6
• 3-7.5 Ton Operating Envelope

  14
• Tandem Applications

  6
• 8-15 Ton Operating Envelope

  14
• Modulation Control

  7
• Compressor Capacity Graph

  15
• Discharge Thermistors

  15
• Oil Level Verification

  7
• 3 to 7.5 Ton Modulation Valve Piping

  16
• Excessive Liquid Floodback Tests

  7
• 3 To 7.5 Ton Tandem

  16
• Operating Envelope Tests

  7
• Modulation Troubleshooting

  17
• Copeland Scroll Digital Family Features

  18
• Refrigerant Charge Limits

  18
• Torque Values

  18
• Compressor Accessories

  19