Equator 375 service manual Using a Manometer in Trouble-Shooting

1.7. Using a Manometer in Trouble-Shooting

The pressure in a refrigerating system is directly dependent on the temperature. For this reason, the manometer can indicate both temperature in degrees Celsius and pressure in bar.

By mounting a manometer on the suction side of the compres- sor ~process ppe~. the temperature in the evaporator at which the refrigerant evaporates can be read. This temperature is normally from -15 C to -25 C in a refrigerator and from -3CC to -35 C in a freezer. These temperatures apply when the unit is set at its coldest position.

The pressure equalizing time is the time taken to reach an denhcal liquid pressure in the condenser and the evaporator after stop of the compressor. This is usually 8 minutes in treezers and slightly less in refrigerators.

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