Dual automatic pressure switch for low and high pressures (LP / HP)
Sanhua PS15 (PS15AAL-S51) protects systems from extremely low suction pressures and extremely high discharge (discharge) pressures.
Especially useful for refrigeration and air conditioning systems where it is very important to turn on and off the refrigeration compressor, adjust the start and stop of air-cooled condenser fan and adjust other components that require the pressure control function.
LP range (low pressure): - 0.5 ~ 7 bar (differential pressure ΔP 0.5 ~ 5 bar).
HP range (high pressure): 6 ~ 32 bar (differential pressure ΔP 4 bar).
Reset auto for both LP and HP.
Maximum operating pressure (PS): LP: 1.65MPa; HP: 3.5MPa.
Screw connections: 7 / 16-20UNF (1 / 4in. & 6mm).
Stable accuracy and repeatability; includes IP44.
Equipped with standard plate for installation / fixing.
Temperature range: -40 ° C / + 120 ° C; ambient working temperature: -30 ° C / + 65 ° C.
SPDT switch for quick reactions and optimization of contacts and decoupling conversion.
Application for equipment with common HCFC refrigerants, non-flammable HFCs and new generation HFO refrigerants: R134a, R404A / R507, R407C, R22, R407A / F, R448A / 449A, R452A, R513A, R450A ...
