Carrier AquaEdge 19XR Series Start-up, Operation And Maintenance Instructions Manual

Also see for AquaEdge 19XR series: Installation instructions Start-up, operation and maintenance instructions

Contents

45h. Turn off the pumpout compressor.2. Evacuate gas from chiller cooler vessel.a. Close liquid line service valves 2 and 5; open valves 3and 4.b. Turn on pumpout condenser water.c. Run pumpout compressor until the chiller cooler ves-sel pressure reaches 18 in. Hg vacuum (41 kPa abso-lute). Monitor pressures on the chiller control paneland on refrigerant gages. This operation can be donein Automatic or On mode. In Automatic mode, thecompressor will stop automatically at approximately15 in. Hg vacuum (51 kPa absolute).d. Close valve 1a.e. Turn off pumpout compressor.f. Close valves 1b, 3, and 4.g. Turn off pumpout condenser water.h. Turn off chiller water pumps and lock out chiller com-pressor.Transfer All Refrigerant to Chiller Cooler Vessel1. Push refrigerant into the chiller cooler vessel.a. Turn on the chiller water pumps and monitor thechiller pressure.b. Valve positions:c. Equalize refrigerant in the chiller cooler and condenser.d. Turn off chiller water pumps and pumpout condenserwater.e. Turn on pumpout compressor to push refrigerant outof the chiller condenser.f. When all liquid is out of the chiller condenser, closevalve 11 and any other liquid isolation valves on thechiller.g. Turn off the pumpout compressor.2. Evacuate gas from chiller condenser vessel.a. Turn on chiller water pumps.b. Make sure that liquid line service valves 3 and 4 areclosed and valves 2 and 5 are open.c. Turn on pumpout condenser water.d. Run the pumpout compressor until the chiller con-denser reaches 18 in. Hg vacuum (41 kPa absolute) inManual or Automatic mode. Monitor pressure at thechiller control panel and refrigerant gages.e. Close valve 1b.f. Turn off pumpout compressor.g. Close valves 1a, 2, and 5.h. Turn off pumpout condenser water.i. Turn off chiller water pumps and lock out chillercompressor.Return Refrigerant to Normal Operating Conditions1. Be sure that the chiller vessel that was opened has beenevacuated.2. Turn on chiller water pumps.3. Open valves 1a, 1b, and 3.4. Crack open valve 5, gradually increasing pressure in theevacuated chiller vessel to 35 psig (241 kPa). Feed refrig-erant slowly to prevent tube freeze-up.5. Leak test to ensure chiller vessel integrity.6. Open valve 5 fully.7. Close valves 1a, 1b, 3, and 5.8. Open chiller isolation valve 11 and any other isolationvalves, if present.9. Turn off chiller water pumps.DISTILLING THE REFRIGERANT1. Transfer the refrigerant from the chiller to the pumpoutstorage tank as described in the Transfer the Refrigerantfrom Chiller to Pumpout Storage Tank section on page 44.2. Equalize the refrigerant pressure.a. Turn on chiller water pumps and monitor chillerpressures.b. Close pumpout and storage tank valves 2, 4, 5, and10, and close chiller charging valve 7; open chillerisolation valve 11 and any other chiller isolationvalves, if present.c. Open pumpout and storage tank valves 3 and 6; openchiller valves 1a and 1b.d. Gradually crack open valve 5 to increase chiller pres-sure to 35 psig (241 kPa). Slowly feed refrigerant toprevent freeze-up.e. Open valve 5 fully after the chiller pressure risesabove the freezing point of the refrigerant. Let thestorage tank and chiller pressure equalize.3. Transfer remaining refrigerant.a. Close valve 3.b. Open valve 2.c. Turn on pumpout condenser water.d. Run the pumpout compressor until the storage tankpressure reaches 5 psig (34 kPa), 18 in. Hg vacuum(41 kPa absolute) in Manual or Automatic mode.e. Turn off the pumpout compressor.f. Close valves 1a, 1b, 2, 5, and 6.g. Turn off pumpout condenser water.4. Drain the contaminants from the bottom of the storagetank into a container. Dispose of contaminants safely.VALVE 1A 1B 2 3 4 5 11CONDITION C C CVALVE 1A 1B 2 3 4 5 11CONDITION C C C C C C CVALVE 1A 1B 2 3 4 5 11CONDITION C CVALVE 1A 1B 2 3 4 5 11CONDITION C C CVALVE 1A 1B 2 3 4 5 11CONDITION C C C C C C CVALVE 1A 1B 2 3 4 5 11CONDITION C C C CVALVE 1A 1B 2 3 4 5 11CONDITION C C CVALVE 1A 1B 2 3 4 5 11CONDITION C C C C C CVALVE 1A 1B 2 3 4 5 6 7 10 11CONDITION C C C C CVALVE 1A 1B 2 3 4 5 6 7 10 11CONDITION C C C CVALVE 1A 1B 2 3 4 5 6 7 10 11CONDITION C C C C C C C C C