Back

AquaEdge® High-Efficiency Semi-Hermetic Centrifugal Chiller Unit 19XR | General Maintenance

This procedure is for the genreral maintenance of your High-Efficiency Semi-Hermetic Centrifugal Chiller. It has the instructions for adjusting the refrigerant charge, refrigerant leak testing and leak rate to name a few.
MaintainX
05/03/2021

AquaEdge® High-Efficiency Semi-Hermetic Centrifugal Chiller Unit 19XR | General Maintenance

8 steps
This procedure is for the genreral maintenance of your High-Efficiency Semi-Hermetic Centrifugal Chiller. It has the instructions for adjusting the refrigerant charge, refrigerant leak testing and leak rate to name a few.
  • Adding Refrigerant

  • CAUTION: Always use the compressor pumpdown function in the PUMPDOWN/LOCKOUT feature to turn on the evaporator pump and lock out the compressor when transferring refrigerant. Liquid refrigerant may flash into a gas and cause possible freeze-up and damage to the unit when the chiller pressure is below –15 in. Hg (–53 kPa) for HFO R-1233zd(E).

  • Adjusting the Refrigerant Charge

  • Refrigerant Leak Testing

  • Leak Rate

  • Test After Service, Repair, or Major Leak

  • WARNING: HFO R-1233zd(E) should not be mixed with air or oxygen and pressurized for leak testing. In general, this refrigerant should not be present with high concentrations of air or oxygen above atmospheric pressures, because the mixture can undergo combustion.

  • Repair Leaks, Retest, Standing Vacuum Test

  • Checking Guide Vanes During normal shutdown, when the chiller is off, the guide vanes are closed. Complete the following steps to adjust posi- tion if required (see Fig. 43 and 44):

  • Figure 46 - 47

  • Trim Refrigerant Charge

Please note that any procedure, checklist, or other document available in the MaintainX Global Procedure Library is provided for general education and information only and does not constitute legal, medical, or financial advice. MaintainX makes the materials available AS IS and AS PROVIDED, without warranties of any kind. By downloading or using any such materials, you assume the risk that they may not be appropriate for your specific situation and agree that you are solely responsible for any such use, including compliance with applicable law and with meeting any conditions of product warranties.