What should the pressures be for 407C?

What should the pressures be for 407C?

If this is so always evaporating above zero, 4 or 5 deg celcius, R407c will have a low pressure (suction ) of about 50 psi. and a high pressure ( discharge ) of about 280 psi, which is about 55 deg celcius, cooling cycle.

Are 407C and R22 pressures the same?

R407C has 6.60 % more pressure ratio than R22. Lower pressure ratio was suggested for higher compressor efficiency. (11) showed that the average compression ratio of R407C is higher by 3.7% & 5.6% for 1 TR and 2 TR system respectively than that of R22.

What should 407C superheat be?

The Pressure/Temperature (P/T) chart shows that the saturated vapor temperature, at the dew point, of R-407C for 79 psig is = 51°F. If the actual refrigerant temperature is 60°F the superheat is 9°F.

IS 407C a low temp refrigerant?

Freon™ 407C refrigerant performs similarly to HCFC-22 under evaporator temperatures ranging from –7 to 10 °C (20 to 50 °F). It is designed for use in new equipment and as a service refrigerant for existing HCFC-22 air conditioning, heat pump, and medium temperature refrigeration equipment.

Do you charge 407C as a liquid?

8. Charge System with Freon™ 407C. This refrigerant should be removed from the cylinder as a liquid. Once liquid is removed from the cylinder, the refrigerant can be charged to the system as liquid or vapor as required.

Can I use 410a gauges for 407C?

Yes, gauges measure pressure and R22/R407c can be measured by the same instrument unlike R410a (with higher pressures probably needs a wider range gauge). What you should not use is the temperature scale.

Can 407C and R22 be mixed?

Mixing R22 with R407C or any other refrigerant. According to the 609 EPA rule, mixing refrigerants is illegal and anybody caught doing so will be heavily fined. If your system is running on R22 most likely is using mineral oil to lubricate the compressor.

Can you put 407C in with R22?

The best replacement for R-22 Freon is usually R-407c. It has a very low loss in capacity (0 – 5%) relative to R-22 and is less expensive than many other R-22 replacement refrigerants. You should never under any circumstances add replacement refrigerant to a system that has any R22 refrigerant left in it.

Can I drop 407C on top of R22?

Mixing R22 with R407C or any other refrigerant. According to the 609 EPA rule, mixing refrigerants is illegal and anybody caught doing so will be heavily fined.

What’s the difference between R407A and R407C?

Also, R407C exhibits a lower power consumption than that of the R22 tests by a value ranging between (3%) and (4%). On the contrary, R407A shows a higher power consumption than that of R22 by a value ranging between (4%) and (10%).

What is the difference between 404A and 407C?

R407c, in my opinion, is a high temp refrigerant, suited to air conditioning applications. R404a is suited to medium/Low temp applications.

IS 407C zeotropic?

R-407C is a mixture of hydrofluorocarbons used as a refrigerant. It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure.

What’s the difference between R-22 and R-407C?

R-407C exhibits higher pressures than R-22 at normal condensing temperatures. This may require adjusting the high pressure safety controls to operate as intended. 9. Systems that use a low pressure controller to maintain space temperature may need to have the cut in and cut out points changed.

What kind of charger is compatible with R407c?

In general, refrigerant charging equipment such as charging boards, valves, and hoses, which are compatible with R22 should be compatible with R407C. Refrigerant charging equipment needs to be recalibrated for use with R407C. Once designated for R407C use, it should be used specifically for that refrigerant only.

What kind of oil is not miscible with R407C?

R407C and Mineral oils (MO) are not miscible Polyol Ester (POE) as well as Polyvinyl Ether (PVE) oils and R407C are miscible. R407C and Synthetic Alkylate (SA) oils are partially miscible.

How much does a R-407C refrigerant cost?

R407C, R-407C, R-407, R22 Alternate, Refrigerant. $95.00.