hi can anyone tell me the approx running pressures for R-404a on an upright freezer. its been a while since i last used this gas. cheers dougie.
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hi can anyone tell me the approx running pressures for R-404a on an upright freezer. its been a while since i last used this gas. cheers dougie.
hi dougie,
i tend to run suction at around 0.7/1.4bar and as long as the hp is below 15bar it should be okay but it really depends on the case.
it depands on the evaporation temperature...
if evaporation temperature is -40 C then suction pressure is around 1 - 3 psig and condensing pressure around 200 psig.
if evaporation temperature is -25 c then sp might be approx. 10-12 psig and condensing presssure might be up to 220-240 psig.