Friedrich H)A24K75L Manuel D’Utilisation

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Table of Contents  

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Important Safety Information ...........................................
Introduction .........................................................................
Vert-I-Pak Model Number Identification Guide ...................
Serial Number Identification Guide ....................................
Chassis Specifications .......................................................
Extended Cooling Performance .........................................
Electrical Requirements .....................................................
Remote Thermostat and Low Voltage Control ..............
V-PAK Electronic Control Board Features ........................
Electronic Control Configuration .......................................
Electronic Control Error Code 

Diagnostics/Test Mode .................................................
Electronic Control Features ..............................................
Checking External Static Pressure ...................................
Checking Approximate Airflow ..........................................
Airflow Charts ....................................................................
Components Testing ....................................................
Refrigeration Sequence of Operation ...............................
Service ............................................................................. 
Sealed Refrigeration System Repairs ..............................
Refrigerant Charging ........................................................
Method Of Charging .........................................................
Undercharged Refrigerant Systems ............................
Overcharged Refrigerant Systems ...................................
Restricted Refrigerant Systems .......................................

Capillary Tube Systems/Check Valve ..........................
Reversing Valve — Description/Operation ..................
Testing Coil .................................................................. 
Checking Reversing Valves .................................... 
Reversing Valve 

Touch Testing Heating/Cooling Cycle  .........................
Procedure For Changing Reversing Valve .............
Compressor Checks .................................................... 
Locked Rotor Voltage Test .......................................... 
Single Phase Connections  ......................................... 
Determine Locked Rotor Voltage  ............................... 
Locked Rotor Amperage Test ...................................... 
Single Phase Running & Locked Rotor Amperage .....  
Checking the Overload ........................................... 
External Overload ........................................................ 
Compressor Single Phase Resistance Test ................  
Compressor Replacement ..................................... 
Routine Maintenance ...................................................
9-18 Electrical Troubleshooting Chart – Cooling ......... 
2-Ton Electrical Troubleshooting Chart – Cooling ....... 
Electrical Troubleshooting Chart – Heat Pump ...........
Refrigerant System Diagnosis – Cooling .................... 
Refrigerant System Diagnosis – Heating ....................
Electrical and Thermostat Wiring Diagrams ...........
Technical Service Data ................................................  

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