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TABLE OF CONTENTS
PAG E
GENERAL
Friedrich Room Model Number Code .......................................................................................................3
Application and Sizing ..............................................................................................................................4
Instructions for using Cooling Load Estimate Form ..................................................................................5
Cooling Load Estimate Form ....................................................................................................................6
SPECIFICATIONS/PERFORMANCE DATA
Specifications "KS" - "KM" - "KL" Models ................................................................................................7
Performance Data "KS" - "KM" - "KL" Models ...........................................................................................7
COMPONENTS OPERATION/TESTING
Compressors ............................................................................................................................................8
Thermal Overload (External) ....................................................................................................................8
Thermal Overload (Internal) .....................................................................................................................9
Fan Motor .................................................................................................................................................9
Run Capacitor .........................................................................................................................................10
System Control Switch ( "KS", "KM", & "KL" Models) ..............................................................................10
Thermostat ("KS", "KM", & "KL" Models) .................................................................................................11
Thermostat Adjustment ...........................................................................................................................11
Resistor ...................................................................................................................................................12
MoneySaver Switch (Rocker Switch) .......................................................................................................12
Sealed Refrigeration System Repairs......................................................................................................12
Hermetic Component Replacement ........................................................................................................13
Special Procedure in the case of Motor Compressor Burn-Out ...............................................................13
Rotary Compressor Special Troubleshooting & Service ..........................................................................14
Refrigerant Charge ..................................................................................................................................14
TROUBLESHOOTING
Troubleshooting Cooling ..........................................................................................................................15
WIRING DIAGRAMS
KS10J10.............................................................618-200-00..................................................................19
KS12J10.............................................................618-200-00..................................................................19
KS12J30A ..........................................................618-200-00 ..................................................................19
KM18J30A..........................................................618-200-00..................................................................19
KM21J30 ............................................................618-200-00 ..................................................................19
KL25J30A...........................................................618-200-00..................................................................19
PARTS LIST
"KS" - "KM" Series Chassis Parts ............................................................................................................20
"KS" - "KM" Series Cabinet Parts ............................................................................................................21
"KS" - "KM" Series Parts List ...................................................................................................................20
"KL" Series Chassis Parts .......................................................................................................................25
"KL" Series Cabinet Parts........................................................................................................................26
"KL" Series Parts List ..............................................................................................................................25