trane RTAC Chiller

[vinod]

Hi,

anybody can please explain me about rtac screw chiller minimum and maximum limit of below


OIL TEMP MAX AND MIN

INTERMEDIAE OIL PRESSURE MIN AND MAX

REFRIGERANT LEVEL MIN AND MAX

APPROCH TEMP MIN AND MAX

[sedgy]

hi all , do modern w-chillers have a temp sensor to detect if a cc heater has been on, or if the oil is hot enough?

[goshen]

hi again,yes these units do monitor oil temp and will prevent starting until correct temp is reached.

[CV_Geardrive]

Hi, Max oil temp is 93°C. If the female is not loaded and the oil temperature is near cut out then CH530 energize female in order to decrease oil temp till 77°C. As a rule of thumb normal oil pressure, when female is loaded, should be approximately 1Bar below high pressure. Specifically the oil pressure is controlled by the following formula: {(High Pressure – Oil Pressure) / (High Pressure – Low Pressure)}. When the female is energized the result which generates a low oil flow alarm is 0,25. When the female is not energized the limit is 0,5. The refrigerant level can vary from -1” to +1” (-25,4mm to +25,4mm). Normal operation is at 0mm. The normal approach for this kind of evaporator (Falling Film) is about 1,5°C.
Hope I help.