Trane Technologies CVHE - Page 5

Starter to Control Panel Wiring .................... 46
10kV–13.8kV Medium Voltage Installation ...47
10kV–13.8kV Medium Voltage Motor ........... 47
Motor Terminal Box ....................................... 47
Motor Supply Wiring ..................................... 47
Motor Terminals ............................................48
Ground Wire Terminal Lug ............................48
System Control Circuit Wiring .......................49
Water Pump Interlock Circuits and Flow
Switch Input ................................................... 50
Temperature Sensor Circuits ........................ 50
Optional Control and Output Circuits ..........51
Optional Tracer Communication Interface ..51
Unit Start-Up .................................................. 51
Starter Module Configuration ...................... 51
Schematic Wiring Drawings ......................... 51
Operating Principles ........................................52
General Requirements .................................. 52
Cooling Cycle ................................................. 52
CVHE, CVHG 3-Stage Compressor ..............52
CVHF 2-Stage Compressor ...........................52
Oil and Refrigerant Pump ............................. 53
Compressor Lubrication System .................53
Operating Principles .....................................53
Motor Cooling System .................................. 54
Tracer AdaptiView Display ............................ 54
Tracer TU Chiller Service Tool ....................... 54
Start-up and Shut Down .................................55
Sequence of Operation ................................. 55
Start-up Sequence of Operation—Wye-Delta .
........................................................................ 55
Power Up Diagram .......................................57
Software Operation Overview Diagram ......57
Ice Machine Control ...................................... 57
Free Cooling Cycle ........................................ 59
Free Cooling (FRCL) ......................................59
Hot Gas Bypass (HGBP) ................................ 59
Hot Water Control .......................................... 60
Heat Recovery Cycle...................................... 60
Auxiliary Condensers .................................... 60
Control Panel Devices and Unit Mounted De-
vices ................................................................ 61
Unit Control Panel .........................................61
Variable Water Flow Through the Evaporator .
........................................................................61
User-Defined Language Support .................61
Unit Start-Up and Shut-down Procedures .. 61
Unit Start-Up Check ......................................61
Daily Unit Shutdown ....................................62
Seasonal Unit Shutdown .............................62
Maintenance ....................................................64
Record Keeping Forms .................................64
Daily Maintenance and Checks ....................64
Compressor Oil Change ................................ 66
Oil Change Procedure ................................... 66
Oil Filter .......................................................... 66
Oil Filter Replacement Procedure ................66
General Lubrication ....................................... 67
Service for the 1st Stage Tang Operator......67
Service for the 1st and 2nd Stage Tang Oper-
ators ...............................................................67
Cleaning the Condenser ...............................68
Cleaning the Evaporator ............................... 68
Purge System ................................................. 68
Leak Checking Based on Purge Pump Out
Time ...............................................................68
Long Term Unit Storage ................................ 69
Unit Preparation ............................................69
Refrigerant Charge ........................................ 70
Recovery and Recycle Connections .............70
Waterbox Removal and Installation ..............72
Discussion ...................................................... 72
Procedure ....................................................... 72
Sound Pressure Level ...... ..............................74
Sound Pressure Level
.....................................
74
TCVHE-SVX04D-EN 5
RELEASED 10/Mar/2020 06:59:20 GMT
Forms ................................................................78
CenTraVac Commissioning Checklist ............ 78