Low Side Pressure Changes
The chart below shows the low side pressure changes
through the cycles of a Electrolux ice maker. It shows
that during a harvest cycle, the low side pressures climb
to nearly 60 psig. When the freeze cycle starts, the pres-
sure quickly drops to approx. 17 psig and throughout
the freeze cycle it continues to slowly drop to approxi-
mately 7 psig just before the harvest cycle.
This unit was operating in a 75° Fahrenheit ambi-
ent temperature and the incoming water tempera-
ture was 50° farenheit.
If a unit is operating in conditions other than
these, the low side pressures will be different.