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In charging freon How many psi should be charge on 1HP aircon

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Will only charge to 40 psi, is supposed to charge to 150

You may have a problem still related to the original reason it was reconditioned.

However, you should have a regulator that you set to the tank pressure you want to maintain. Most have a tool regulator as well and 40 psi sounds like that is what it is set for.

If you do have a tank pressure regulator and it is still not charging above 40 psi, then either take it back or pick up a new regulator for under $20 at Home Depot and replace the gauge you have now.

Also, sometimes the gauge will have a needle tilted so that one end presses against the glass, and if you tap the glass hard with your finger it will move on around to the correct pressure.

Finally, if you are not experienced with small compressors, look under your gauge and see if there is not a black knob that pulls out and pushes in to turn and change the pressure.


Posted on May 22, 2009

  • 1 Answer

SOURCE: it takes more then 30 minutes to drop 1 degree

Air filter needs replaced, if the air is low flow but cool out of registers.
Need to find the leak in freon line if air is not cool.
Clean outside unit if either one applies.

Posted on Jun 05, 2009

  • 203 Answers

SOURCE: 2001 Mercedes S500. Air conditioner won't blow cold even though

I think that this might help you. The a/c compressor is a continuos running type there is no clutch. It has a wobble plate internally wich changes the piston stroke. Screw the genises machine-it is probably only reading a partial on the climate control module. see if you can find the self diagnoses diagram either from the factory or if you have all data. you can pull the codes right from the unit itself and they will be accurate. If you can,t pull codes see if you can get an actual value of the sensors in the a/c unit. You should be able to pull that up as well if not try the genisis. Look very closely at you evaporater sensers(left and right) you will probably see a -40 degrees-that is the sensor default input reading when the sensor goes open. That sensor is used to moniter the wobble plate position of the compressor.

Posted on Jun 30, 2009

  • 587 Answers

SOURCE: my motor compressor thrifts every 5 mins.

If you have a low pressure switch on your air conditioner it's opening and closing, because you don't have enough refrigerant in the system or it's cycling on the thermal overload in the compressor because it's getting hot.
You need to charge your system to approximately 12° to 15° superheat not by pressure.

Posted on Mar 26, 2010

  • 1169 Answers

SOURCE: Delfield 6000xl: what is the 404a freon charge?
this is for their web site. It has all the manuals and charging tables. There is no 6000xl. Need exact model number as the amount varies.
Hope this helps

Posted on Apr 01, 2010

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For charging purposes, you really should be monitoring the low side pressure. Depending on ambient air temperature, the low side should be between 30 and 50 lbs PSI. The high side can be between 135 and 330 lbs PSI.

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How many PSI freon dos this unit take to fill? S3QA-30KA 2.5 TON

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AC blows warm. fan + compressor don't seem to engage.

The system could be low on refrigerant. The A/C pressure switch will not let the compressor run if the system pressure is below 28psi or above 455psi to protect the compressor from damage. At low pressures not enough oil (mixed in with the refrigerant) will circulate, and at high pressures, the compressor seals will likely blow. You can get a set of A/C manifold gauges for R-134a and check the system pressures yourself or get a shop to check it and possibly add some R-134a. If the system pressure checks good, then the A/C pressure switch, the compressor clutch, or some relays will need to be checked.

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I Have a 2000 Expedition 5.4, atempted to charge the ac. I was getting a preasure reading but no freon would go into the system. When the compesor cicks on i get a reading of about 30 psi when it goes off...

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GE GSF25XGR Everything seems to be functioning properly, compressor is running. have supplied freon but its not moving thru the lines.

you mean, it where not able to completely frozen the layers?

if that is the case then your Freon charge might be under charge, it should be atleast 18 to 20 psi the backl pressure of your freon charge when it is running and it can only be measured using gauge manifold, your technician should know about it.

worst case scenario is your compressor might be Loss Compression (mechanical failure) Yes it is running but it cannot make pressure (valve problem)

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There is a pressure valve that keeps the compressor from turning on if it has a low freon charge. Get a self recharge kit that comes with a gauge with colored charge indicator. Hook it up and see where your charge is. It is very inexpensive compared to a pro A/C shop.

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Adding freon to my central air

Well duprees, first you got to have the right instrumentation for charge freon to a a/c system, now, the charge line is the thick line, wich it means the suction line, the colder line, or the most robust line on the compressor.
Then, the system uses freon 22, the right charge, with the system on and the compressor running is 68.5 to 70 psi.
This should give to you about 40 degrees(farenheit) at the evaporator, the panel that gets cold in the system.
This pressure should be at the low side, meaning thicker line in the compressor unit.
Hope this help you......

Good luck.......

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