Manually adjust expansion valve and sensor of limit level
An alternative method of feeding flooded evaporators (modulation type expansion valve), float level switch. It opens and closes the solenoid valve is located in the liquid line immediately before manually adjust the expansion valve.
This mechanism can be used both for HP high and low pressure of the float type. With this arrangement, manually adjust the expansion valve is installed in the degree of opening that provides the necessary speed of the supply of liquid refrigerant remains at maximum load with minimum water pressure. Under all other terms, in the period of time that the solenoid valve is open decreases...
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