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Friedrich KHS10A10A - User Manual

Friedrich KHS10A10A
91 pages
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1 PB
Service Manual
Room Air Conditioners
Standard Chassis Models
Kühl
KCS08A10A, KCS10A10A, KCS12A10A, KCS14A10A, KCM14A10A
KCS12A30A, KCS16A30A, KCM18A30A, KCM21A30A KCL24A30A,
KCL24A30B, KCL28A30A, KCL36A30A
KHS10A10A
KHM12A33A, KHM18A34A, KHL24A35A
115-Volt:
230-Volt:
Kühl +
Electric Heat
Kühl +
Heat Pump
230-Volt:
93001403_04
KES12A33A, KES16A33A, KEM18A34A, KEL24A35A,
KEL24A35B, KEL36A35A
115-Volt:
230-Volt:

Table of Contents

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Summary

INTRODUCTION

Important Safety Information

Details critical safety procedures and warnings for handling the unit.

Personal Injury Or Death Hazards

Highlights potential dangers and risks associated with unit operation and maintenance.

Electrical Hazards

Covers safety warnings and precautions related to electrical shock and wiring.

Refrigeration System Repair Hazards

Specific safety guidelines for working with the unit's refrigeration system.

SPECIFICATIONS

Refrigeration Systems Performance Data

Table detailing performance metrics for various models and conditions.

Electrical Data

Information on electrical requirements, circuit ratings, and wiring.

Installation

OPERATION

Unit Heating Mode Control Operation

Explanation of heating control logic for heat pump and electric heat units.

Heat Pump Only Unit Operation

Specific operational details for heat pump-only models without electric heat.

Heat Pump With Electric Heat Operation

Operational procedures for units combining heat pump and electric heat.

ROUTINE MAINTENANCE

REMOVE AND INSTALL THE CHASSIS

TROUBLESHOOTING

Cooling Sizing Guide

A guide to help determine the appropriate cooling capacity needed for a room.

Diagnostic Codes

List of diagnostic codes, their problems, and control board actions.

Troubleshooting Tips

General tips for diagnosing and resolving common unit operational issues.

Troubleshooting Tips (Unit Issues)

Specific troubleshooting advice for unit performance and cycling problems.

Troubleshooting Tips (Operation Issues)

Guidance for resolving issues related to fan motor, evaporator, or compressor operation.

Troubleshooting Tips (Environmental Issues)

Addressing problems related to noise, water leaks, and moisture.

Troubleshooting Tips (Water Leaks)

Solutions for water leakage issues, including condensation and installation pitch.

Troubleshooting Tips (Heating Issues)

Tips for resolving issues specific to the unit's heating performance.

Refrigerant System Diagnosis - Heating Cycle

Diagnostic chart for identifying refrigerant system problems during heating.

Refrigerant System Diagnosis - Cooling Cycle

Diagnostic chart for identifying refrigerant system problems during cooling.

COMPONENT TESTING

Capillary Tube and Check Valve Assy (Heat Pump Units)

Testing procedures for capillary tubes and check valves in heat pump units.

Capillary Tube Assy (Cool Only Units)

Testing procedures for capillary tubes in cool-only units.

Reversing Valve Description and Operation

Explanation of the reversing valve's function and how it directs refrigerant flow.

Compressor Checks and Tests

Procedures for testing compressor voltage, amperage, and overloads.

R-410 A SEALED SYSTEM REPAIR

Equipment Required for R-410 A Service

List of necessary tools and equipment for R-410A system repairs.

Equipment Capabilities for R-410 A Service

Required capabilities for equipment used in R-410A system servicing.

Refrigerant Charging Procedures

Guidelines and notes on proper refrigerant charging for R-410A systems.

Undercharged Refrigerant Systems

Symptoms and diagnosis for systems with insufficient refrigerant charge.

WIRING DIAGRAMS

Summary

INTRODUCTION

Important Safety Information

Details critical safety procedures and warnings for handling the unit.

Personal Injury Or Death Hazards

Highlights potential dangers and risks associated with unit operation and maintenance.

Electrical Hazards

Covers safety warnings and precautions related to electrical shock and wiring.

Refrigeration System Repair Hazards

Specific safety guidelines for working with the unit's refrigeration system.

SPECIFICATIONS

Refrigeration Systems Performance Data

Table detailing performance metrics for various models and conditions.

Electrical Data

Information on electrical requirements, circuit ratings, and wiring.

Installation

OPERATION

Unit Heating Mode Control Operation

Explanation of heating control logic for heat pump and electric heat units.

Heat Pump Only Unit Operation

Specific operational details for heat pump-only models without electric heat.

Heat Pump With Electric Heat Operation

Operational procedures for units combining heat pump and electric heat.

ROUTINE MAINTENANCE

REMOVE AND INSTALL THE CHASSIS

TROUBLESHOOTING

Cooling Sizing Guide

A guide to help determine the appropriate cooling capacity needed for a room.

Diagnostic Codes

List of diagnostic codes, their problems, and control board actions.

Troubleshooting Tips

General tips for diagnosing and resolving common unit operational issues.

Troubleshooting Tips (Unit Issues)

Specific troubleshooting advice for unit performance and cycling problems.

Troubleshooting Tips (Operation Issues)

Guidance for resolving issues related to fan motor, evaporator, or compressor operation.

Troubleshooting Tips (Environmental Issues)

Addressing problems related to noise, water leaks, and moisture.

Troubleshooting Tips (Water Leaks)

Solutions for water leakage issues, including condensation and installation pitch.

Troubleshooting Tips (Heating Issues)

Tips for resolving issues specific to the unit's heating performance.

Refrigerant System Diagnosis - Heating Cycle

Diagnostic chart for identifying refrigerant system problems during heating.

Refrigerant System Diagnosis - Cooling Cycle

Diagnostic chart for identifying refrigerant system problems during cooling.

COMPONENT TESTING

Capillary Tube and Check Valve Assy (Heat Pump Units)

Testing procedures for capillary tubes and check valves in heat pump units.

Capillary Tube Assy (Cool Only Units)

Testing procedures for capillary tubes in cool-only units.

Reversing Valve Description and Operation

Explanation of the reversing valve's function and how it directs refrigerant flow.

Compressor Checks and Tests

Procedures for testing compressor voltage, amperage, and overloads.

R-410 A SEALED SYSTEM REPAIR

Equipment Required for R-410 A Service

List of necessary tools and equipment for R-410A system repairs.

Equipment Capabilities for R-410 A Service

Required capabilities for equipment used in R-410A system servicing.

Refrigerant Charging Procedures

Guidelines and notes on proper refrigerant charging for R-410A systems.

Undercharged Refrigerant Systems

Symptoms and diagnosis for systems with insufficient refrigerant charge.

WIRING DIAGRAMS

Friedrich KHS10A10A Specifications

General IconGeneral
Voltage115V
RefrigerantR-410A
BTU10000
Cooling Capacity10, 000 BTU
Power Supply60Hz
Noise Level (High)52 dB

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