The standby LPAC unloads at what psi?

The standby LPAC unloads at what psi?

• A. 125
• B. 120
• C. 115
• D. 130

Answer: (B)

Standby LPAC unloading is the pressure at which the compressor stops taking on load and just holds the system at the desired pressure, ready to respond if demand increases. For this setup, the unload point is 120 psi, so the standby unit will stop building additional pressure when the discharge reaches about 120 psi and remain ready to pick up load again if pressure dips. The other numbers are not the unload setting for this standby configuration; they may correspond to other thresholds in different parts of the system but do not define this unit’s unload pressure.

Standby LPAC unloading is the pressure at which the compressor stops taking on load and just holds the system at the desired pressure, ready to respond if demand increases. For this setup, the unload point is 120 psi, so the standby unit will stop building additional pressure when the discharge reaches about 120 psi and remain ready to pick up load again if pressure dips. The other numbers are not the unload setting for this standby configuration; they may correspond to other thresholds in different parts of the system but do not define this unit’s unload pressure.