404a Refrigerant Freezer Pressures

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404a Refrigerant Freezer Pressures

I just wanted to know what are normal pressures for freezers. Its 404 … Recovered about 3lbs of refrigerant. … Dont have the guagues for 404A.
Physical Properties of Refrigerants. Environmental Classification. Molecular Weight. Boiling Point (1 atm, ˚F). Critical Pressure (psia). Critical Temperature (˚F) .
Usually depends on the temp of the conditioned space. Most freezers run about a minus 10 evap to get a 0 degree box. So look for a low side .
404a walk in freezer – what to look for. I am a residential … R404A runs similar pressures to R22 which you’re probably more familiar working with in the US.
30 suction pressure is definitely a bit high. … it’s one big block of frost, that is a problem with your defrost system, not the sealed freon system.
18-20psig suction 250-270 psig discharge In freezers pressures are ok .I got it , but the mention .
TEMPERATURE PRESSURE CHART – at sea level. To determine … REFRIGERANT (SPORLAN CODE). (°F). (°C). 134a (J) 404A (S) 507 (P). 717 (A) 744 – CO2.
When the temperature inside the freezer is at about 0°F, the low side pressure should be 8-10PSIG for R404A charged units. Refrigerators should pull down to 35°F in about 20 minutes when located in an ambient of about 75 °F.
The pressure on the low side reads 33.5 psig (0°), and the high side … realizes the unit cannot be low on refrigerant (R-404A) because the 9° of .

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