Friedrich SM18N30* User Manuals

Table of Contents

• Important Safety Information

  2
• Introduction

  5
• Model and Serial Number Location

  5
• Unit Identification

  6
• Performance Data and Specifications

  7
• Installation Information/Sleeve Dimensions/Circuit Rating

  8
• Electrical Data

  9
• Before Operating the Unit

  10
• Kuhl Control Options

  11
• Control Panel and Display Identification

  12
• Control Panel Operation Instructions

  13
• Remote Control Operation

  20
• Unit Operation

  22
• Electronic Control Sequence of Operation

  23
• Fan Operation

  28
• Removing the Front Cover and Unit Chassis

  29
• Replacing the ID Coil Thermistor

  30
• Replacing the Control Board

  30
• Airflow Selection and Adjustment

  31
• Components Testing

  32
• Testing the User Interface and Control Board

  34
• Refrigeration Sequence of Operation

  35
• R410A Sealed System Repair Considerations

  36
• Sealed Refrigeration System Repairs

  37
• Hermetics Components Check

  41
• Reversing Valve Description/Operation

  42
• Testing the Coil

  43
• Checking the Reversing Valve

  43
• Compressor Checks

  45
• Compressor Replacement

  47
• Routine Maintenance

  49
• Service and Assistance/Avalaible Accessories

  53
• How to Check and Erase the Diagnostic Codes

  54
• Error Codes and Alarm Status

  55
• Test Mode

  56
• Thermistors' Resistance Values

  57
• Performance Test Data Sheet

  58
• Troubleshooting

  59
• Electronic Control Board Components Identification & Thermistor Voltage

  69
• Electronic Control Configuration Instructions

  70
• Wiring Diagrams

  71
• Remote Control Replacement Instructions

  80
• User Interface Service Kit

  82
• Parts Section

  83
• Addendum 1

  91
• Warranty

  92
• Authorized Parts Depots

  93
• Technical Support Contact Information

  93