Displays on the pressure gauge |
1 - | Temperature scale for refrigerant R134a CF3–CH2F or CH2F–CF3. |
In addition to the pressure scale, the pressure gauges can have one or more temperature scales. The scale values for R134a are assigned according to the vapour pressure table. Because different refrigerants have different vapour pressures at the same temperature, each temperature scale is labelled for the respective refrigerant. |
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