I have a trane rtaa 125 chiller. Both compressors trip on same alarm. Starts up in 2 min the female loader in energized then the suction psi drops has well as the low suction temp set point witch is set to default 22 degress. No glycol in chiller. 11 degrees sub cooling with clear site glass. All 5 fans running 80+ degress ambient temp. 7 to 10 psi differential on entering and leaving water flow. Sometime might run all day other time trips within 3 min of start. Thinking bad suction evap sensor ?????? Any suggestion please