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Normal high and low AC ambient temperature pressure chart Ambient Temperature in F Low side Pressure Gauge reading and High side Pressure Gauge reading 65F Ambient temperature. I dont even measure vent temp anymore every car is different even if its the exact same model.
Oldschool July 5 2016 917pm 5.
Car ac temperature chart. In general with ambient air temperatures 70º degrees Fahrenheit and humidity 20 the evaporator outlet air temperature should be in the 35º-40º degrees Fahrenheit range. On the other extreme of 80º degrees Fahrenheit ambient air temperature and 90 humidity condition the evaporator air outlet temperature might be in the 45º to 50º degrees Fahrenheit range. Ambient Temperature F Low Side.
R-134a TEMPERATURE PRESSURE CHART FOR ORIFICE TUBE SYSTEM ENGINE AND AC RUNNING. Ambient Temperature FC Low-Pressure Gauge High-Pressure Gauge 65F Low side pressure 25-35 psi High side pressure 135-155 psi 70F Low side pressure 35-40 psi High side pressure 145-160 psi 75F Low side pressure 35-45 psi High side pressure 150-170 psi. How To Troubleshoot A Broken Car Air Conditioner Yourmechanic Advice R134a Pressure Gauge Re.
Measure at least 3 inches into the center dash vent. Temperature should be 40 to 42 deg F. Higher fan speeds resulting in high air volume will result in higher vent temps.
Rear cabin systems are normally 10 degrees warmer because they have a larger volume of space to cool. Drive the car with the AC on max. With temperatures in the 70s to 80s Fahrenheit the outlet temperature should be around 35 to 48 degrees.
R134yf Some cars made after 2014 use another refrigerant called R134yf which is a synthetic HFO refrigerant and a successor to R134a for automotive air-conditioning applications. How to use the inside car temperature calculator. Select the unit of measurement.
You can choose between degrees Celsius or degrees Fahrenheit. Input the outside air temperature. Input the amount of time in minutes that the car has been parked in those conditions.
Click on the Calculate button to compute the temperature inside the car. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. Anywhere from 40 to 50 degrees should be considered good.
There are a lot of variables that effect vent temp like humidity ambient temp if the recirculation flap is closed or open and a few others. I dont even measure vent temp anymore every car is different even if its the exact same model. If the temperature of the air is 55F or below do not charge the vehicle.
It is also always recommended to use a charging hose with a gauge. The refrigerant packaging should contain a chart like the one below for determining what pressure to charge the system depending on the ambient air temperature. Oldschool July 5 2016 917pm 5.
You need to look at a chart that takes into account the realitive humidity. 80 degrees ambient and 90 humidity gets you 55 to 60F outlet. 70 ambient and 20 humidity gets you 35 to 40F.
Normal high and low AC ambient temperature pressure chart Ambient Temperature in F Low side Pressure Gauge reading and High side Pressure Gauge reading 65F Ambient temperature. Low side pressure 25-35 psi High side pressure 135-155 psi. Car AC Check made Easy without auto ac gauges or auto ac chart.
Automotive AC Pressure Chart for Air Conditioning Systems with R134a. Condenser Outlet temp 135 to 155 usually a 40 to 60 degree drop in temperature across the Condenser Evaporator Outlet temp 45 to 55 Compressor Suction temp. If the evaporator temperature drops below 32 icing will occur.
And coincidentally a low pressure of 35 psi indicates an evaporator temperature of 35. All things being perfect the outlet temperature could be down to 40 but 45 is great and 50 is acceptable when the ambient temperature is in the upper nineties and the humidity above 80. 1234yf Pressure Chart.
One of the very first steps when it comes to diagnosing a vehicles air conditioner is understanding the temperature and the. I bought a used car and its the first winter since I had this car. AC in summer was working just fine.
But today I saw the outside temperature was about 55 degrees and I turned the AC to the blue color cold side midway and it starting blowing warm air. I am not sure if this is expected or not when the outside temperature is low.