Specifications

JOHNSON CONTROLS
6
FORM 160.81-NOM2
ISSUE DATE: 2/29/2012
TABLE OF CONTENTS (CONT'D)
Capacity Control ............................................................................................................................................ 51
Need For Maintenance Or Service ................................................................................................................. 52
Normal Safety Shutdown and Repairs ...........................................................................................................52
Safety Shutdowns ..........................................................................................................................................52
Cycling Shutdowns ......................................................................................................................................... 52
Stopping The System .....................................................................................................................................53
Prolonged Shutdown ......................................................................................................................................53
Start-Up After Prolonged Shutdown ...............................................................................................................53
SECTION 4 – OPERATING INSPECTIONS ...........................................................................................................55
General ...........................................................................................................................................................55
SECTION 5 – MAINTENANCE ............................................................................................................................... 57
General ...........................................................................................................................................................57
Compressor Oil ..............................................................................................................................................58
Charging Unit With Oil .................................................................................................................................... 58
Oil Temperature Control ................................................................................................................................60
Oil Filter ..........................................................................................................................................................60
Oil Filter Replacement .................................................................................................................................... 61
Filter Drier Replacement ................................................................................................................................61
Determining Correct Refrigerant Charge Level ..............................................................................................62
Refrigerant Charging ......................................................................................................................................62
Refrigerant Leak Checking ............................................................................................................................. 62
Pressure Connections ....................................................................................................................................62
Condensers and Evaporators .........................................................................................................................63
Cleaning Evaporator and Condenser Tubes ..................................................................................................63
Condenser Water Side Tube Cleaning Procedure ........................................................................................63
Evaporator Tubes ...........................................................................................................................................64
Megohm the Motor .........................................................................................................................................65
Checking System For Leaks ..........................................................................................................................65
Evacuation and Dehydration of Unit ............................................................................................................... 66
Checking the Refrigerant Charge During Unit Shutdown ............................................................................... 66
Handling Refrigerant for Dismantling and Repairs .........................................................................................67
Tube Cleaning Procedures .............................................................................................................................67
Commercial Acid Cleaning .............................................................................................................................67
Testing for Evaporator and Condenser Tube Leaks ....................................................................................... 67
Compressor .................................................................................................................................................... 68
Vibration Analysis ........................................................................................................................................... 68
Electrical Controls ..........................................................................................................................................68
SECTION 6 – TROUBLESHOOTING ..................................................................................................................... 71
Troubleshooting Guide ...................................................................................................................................71
Abnormal Operation, Analysis and Correction ...............................................................................................71
Troubleshooting The Rotary Screw Compressor and Oil Separation System ................................................71
Pressure/Temperature Conversion Tables .....................................................................................................73
Temperature Conversion Tables .....................................................................................................................74
Temperature ...................................................................................................................................................75