Carrier 17/19EX - Manual (Page 163)

Check Pumpout System Controls and Optional Pumpout Compressor
Controls include an on/off switch, a 3-amp fuse, the compressor overloads, an internal
thermostat, a compressor contactor, and a refrigerant high pressure cutout. The high pressure
cutout is factory set to open at 161 psig (1110 kPa) and reset at 130 psig (896 kPa). Check that
the water-cooled condenser has been connected. Loosen the compressor holddown bolts to
allow free spring travel. Open the compressor suction and discharge service valves. Check that
oil is visible in the compressor sight glass. Add oil if necessary.
See Pumpout and Refrigerant Transfer Procedures and Pumpout System Maintenance
sections for details on transfer of refrigerant, oil specifications, etc.
High Altitude Locations
Recalibration of the pressure transducers will be necessary as the machine was initially
calibrated at sea level. Please see the calibration procedure in the Troubleshooting Guide
section.