Question about Heating & Cooling

1 Answer

What should the pressure readings be for a American Standard Freedom 500 2.5 ton air conditioner be

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,515 Answers

Hi, this depends on the outdoor air temperature and type of freon this unit has. The hotter it is outdoors, the higher the pressure will be as they use a pressure/temperature relationship. If the unit is R-22 and lets say it is 90* F. out side, the low side or suction side will be at around 68 to 72 p.s.i which would give you an evaporator temperature of 40* F. Head pressure would be at around 90* plus 27*= 245p.s.i. This is if the condenser fan is in good condition and the outdoor coil is clean. If you are using a set of manifold gauges you have the pressure/temperature scale right on it. If the unit has a TXV for metering, you would need to charge it using the subcooling method. On a Non-TXV you would use the superheat method. If you are using the new R-410a freon, the pressure are extremely high in these systems compared to the R-22 system, so make sure you look at the units data plate to read the type of freon. The color of the container is green for R-22 and a Pink for R-410a and the 410 a unit will display a pink warning sticker on the unit to tell you. The pressures on the R-410 would be at 90* F, low or suction side at that temp is around 125 p.s.i., and around 400 to 420 p.s.i. on the high side, much higher then the R-22. You would also need a manifold gauge set made just for the R-410a (AZ-20) as of the extreme pressures in the system. There is never a set pressure to go by as the outdoor temperature will raise and lower the pressure of freon very fast. If you are asking this question because you have a manifold set and are taking a reading, the unit has a charging method pasted right on it from the factory showing what pressure they want it to run at. Your gauges also can be used as a pressure temperature chart, or you can pick one up free of cost at a a/c parts house to keep with you. It will show you how to calculate the charge for your unit. If you are familar with pressures, this should be of a great help to you. I hope that I have helped you on getting the unit charged properly. Please keep me in mind when rating me, as I know you will be kind. Just drop by a wholesale a/c parts house, walk in and ask for a pressure temperature chart, and they will hand you a couple of them. They have very good information and no how on all of the most common freons in use today.
Best of luck
Shastalaker7
A/C, Heating, & Refrigeration Contractor

Posted on Jul 30, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Noise very bad at outside unit new american standard ac


should not be that noisy. fan bracket loose or blade out of balance.

Sep 13, 2012 | American Standard Heating & Cooling

1 Answer

I have a American Standard furnace Freedom 80 Mod# AUD080C936H3 and am looking for a manal or can you tell me how the exauhst is done. Can I use PVC


Hello, The only time pvc is allowed is if the Furnace is 90% or greater in effiecency, the combustion gases are cooler due to the fact that two heat exvhangers are used. One pipe will be you air intake and the other the exhaust and they can be routed through the roof or sidewall. If the Furnace is 80% then you must use double wall vent pipe and have it connected to either a liner in a chimney or routed through a roof but pvc can not be used.

Aug 28, 2011 | American Standard Heating & Cooling

1 Answer

I changed the furnace filter on my american Standard Freedom 80 filter and now my burner won't light.


does anything happen, i door that you removed might have a kill switch on it so if the door comes off or is not installed right the furnace wont light, let me know and maybe i can help. wally

Mar 10, 2011 | American Standard Heating & Cooling

1 Answer

I have an american standard furnace, freedom 95, Comfort R model that is pushing out air through the ducts. the problem is that it is not giving me hot air. the code is Red, Red/Green, Red, Red/Green, G,...


I have the same furnace, just had the same problem / light code. It was the main board on the furnace thankfully still under warranty. be prepared to get your wallet out!

Dec 05, 2010 | Heating & Cooling

1 Answer

Tonage Spec. for unit #4A7B3036B100BA


Hi,
This unit is a 3 ton unit....that is what the 36 in the model number stands for...36,000 BTU at 12,000 per ton = 3 ton

heatman101

Aug 21, 2010 | American Standard WCZ036F Air Conditioner

1 Answer

Need schematic for an American Standard A/C Model number 7A0030A1


American Standard and Trane are the same thing. The diagram you want is not complicated at all. Just straight cool unit. American Standard does not put low or high pressure controls on unit. You can get diagram on line At American Standard.com. Just what do you need to know? Very basic unit.

Jun 11, 2009 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

577 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2602 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...