Specifications

3
List of contents
INTRODUCTION ...................................................................... 4
SAFETY CONSIDERATIONS ................................................. 4
DIMENSIONS, CLEARANCES,
WEIGHT DISTRIBUTION ...................................................... 5
30HXC 075-185 ........................................................................... 5
30HXC 215-280 ........................................................................... 6
30HXC 300-370 ........................................................................... 7
30GX 080-160 .............................................................................. 8
30GX 175 ..................................................................................... 9
30GX 205-265 ............................................................................ 10
30GX 280-350 ............................................................................ 11
MAIN COMPONENT LOCATION ....................................... 12
30HXC 075-185 ......................................................................... 12
30HXC 215-280 ......................................................................... 13
PHYSICAL DATA .................................................................... 14
30HXC........................................................................................ 14
ELECTRICAL DATA .............................................................. 15
30HXC........................................................................................ 15
Compressor ................................................................................. 15
PHYSICAL DATA .................................................................... 16
30GX .......................................................................................... 16
ELECTRICAL DATA .............................................................. 17
30GX .......................................................................................... 17
Compressor ................................................................................. 17
APPLICATION DATA ............................................................. 18
Unit operating range ................................................................... 18
Minimum chilled water flow ...................................................... 18
Maximum chilled water flow ..................................................... 18
Cooler flow rate (l/s)................................................................... 19
Condenser flow rate (l/s) ............................................................ 19
Variable flow evaporator............................................................. 19
System minimum water volume ................................................. 19
Flow controllers .......................................................................... 20
INSTALLATION ...................................................................... 20
Check equipment received.......................................................... 20
Moving and siting the unit .......................................................... 20
LIFTING INSTRUCTIONS .................................................... 21
30HXC 075-185 ......................................................................... 21
30HXC 215-280 ......................................................................... 22
30HXC 300-370 ......................................................................... 23
30GX 080-160 ............................................................................ 24
30GX 175 ................................................................................... 24
30GX 205-265 ............................................................................ 25
30GX 280-350 ............................................................................ 25
PIPING CONNECTIONS ....................................................... 26
Operating precautions................................................................. 26
Cooler and condenser connections ............................................. 26
Pipe connections ......................................................................... 26
Freeze protection ........................................................................ 26
ELECTRICAL CHARACTERISTICS .................................. 27
Power supply .............................................................................. 27
FIELD POWER SUPPLY ........................................................ 28
30HXC 075-185 ......................................................................... 28
30HXC 215-280 ......................................................................... 29
30HXC 300-370 ......................................................................... 30
30GX 080-160 ............................................................................ 31
30GX 175 ................................................................................... 32
30GX 205-265 ............................................................................ 33
30GX 280-350 ............................................................................ 34
MAJOR SYSTEM COMPONENTS
AND OPERATION DATA ....................................................... 35
Geared twin screw compressor ................................................... 35
Cooler ......................................................................................... 35
Condenser and oil separator (30HXC) ....................................... 35
Oil separator (30GX) .................................................................. 35
Electronic Expansion Device (EXD).......................................... 35
Economizer ................................................................................. 35
Oil pumps ................................................................................... 36
Motor cooling valves .................................................................. 36
Back pressure valve (GX only) .................................................. 36
Sensors........................................................................................ 36
Thermistors ................................................................................. 36
Pressure transducers ................................................................... 36
Control components.................................................................... 37
CONTROL OPERATION ....................................................... 39
Keypad and display module usage (HSIO II) ............................. 39
Functions and subfunctions ........................................................ 39
Accessing functions and subfunctions........................................ 40
Status function ............................................................................ 41
Test function and subfunctions ................................................... 43
Schedule function ....................................................................... 44
Service function .......................................................................... 44
History function and subfunctions.............................................. 46
Setpoint function ........................................................................ 47
Head pressure control ................................................................. 48
PRE-START-UP PROCEDURE ............................................. 50
System Check ............................................................................. 50
Start-up and operation ................................................................ 50
Actual Start-up............................................................................ 50
Operating Sequence .................................................................... 50
TROUBLESHOOTING ........................................................... 51
Checking display codes .............................................................. 51
Unit shutoff................................................................................. 51
Complete unit stoppage .............................................................. 51
Single Circuit Stoppage .............................................................. 51
Restart procedure ........................................................................ 51
Alarms and alert ......................................................................... 51
Alarms and alerts codes table ..................................................... 52
Low oil pressure alert criteria and setpoints (Alert 40 to 43) ..... 56
MAINTENANCE ..................................................................... 57
Refrigerant Charging - Adding Charge ...................................... 57
Oil Charging - Low oil recharging ............................................. 58
Service replacement compressor ................................................ 59
EXV Troubleshooting Procedure ............................................... 59
START-UP CHECKLIST FOR 30HXC/30GX...................... 60
Preliminary information ............................................................. 60
Preliminary equipment check ..................................................... 60
Unit start-up ................................................................................ 61