Question about Intertherm P3RA-036K Air Conditioner

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Where does the orfice go on the suction line or liquid line and is it on the condensor or evap coil?

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The evaporator comes with the orfice attached in the stub but you need to check the correct size as per the manf. the correct orfice is often packed with the condensing unit.

Posted on Aug 09, 2009

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It goes in the evaporator coil.

Posted on Jun 26, 2009


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1 Answer

I have 1.5 ton split air-conditioner, so tell me that what size of copper tube will be installed in liquid line and suction line?

You should be able to measure the evap coil tube size or at condenser tube size where the tubing connect. But, standard size should be a 5/8 suction and 3/8 liquid line.

Aug 07, 2015 | Heating & Cooling

1 Answer

Where is the a/c orfice and canaster located?

the A/C expansion valve (orfice) is right next to the evaporator
in fact that is what causes the Freon to change from liquid to gas.
and must be there.
the Canister, (the receiver /dryer ) is usually near the condensor. end .
you can see the line clear, open hood, see the 2 compressor lines
the 2 fire wall line(hoses/pipes)
see the 2 condensor lines.
the dryer is on the line to the condensor. just follow it, and bingo. thar she be....

Jul 02, 2014 | 2003 GMC Yukon XL

1 Answer

Where is the orifice tube on 1998 cavalier

the orfice is located in the liquid line, this line runs from the condensor to the evaperator core, disconnect line at the core first and look in line and core side if its not there then look at the other end at condenser.

May 30, 2010 | 1998 Chevrolet Cavalier

1 Answer

Low suction pressure high head pressure

Check condensor fan motor for operation and or dirty plugged up condensor coil. If none of the above than probably plugged liquid line filter or cap tube.

May 26, 2010 | True TSSU-60-16-DS-ST-ADA Refrigerator...

1 Answer

Goodman Condensor cplj48-1 Air handler Modle

It sounds undercharged (needs more refrigerant). Based on the conditions in your post and assuming the indoor humidity is within 20-70% range, your target superheat should be 10degF. Your superheat (assuming you have an R22 system) is far too high. The pressures are not indicating a restriction; therefore, I have to conclude you have a low charge. A low charge will cause a gurgling sound due to the refrigerant in the liquid line is vaporizing prior to reaching the Cap tube at the Air Handler.

I hope you find this information helpful to you moving forward. :-)

May 10, 2010 | Heating & Cooling

2 Answers

My ac compressor locked up. What needs to be

I would suggest leak testing it you can take hose with clamps to the outlet and put a psi gauge on it then hook a compressor to the other end with a hose with clamps. This will show you if you have any obvious leaks you dont need alot 10psi and hold as long as you would like atleast a min you can also spray it with soap bubles to be sure. the condenser if its not leaking would be fine with a flush.

Apr 06, 2010 | 1998 Chrysler Town & Country

1 Answer

Have goodman unit, ac unit running 55 suction, 210 high side. cleaned condenser coils and charge to 10 degrees supercool. suction at 65, discharge 245, why did my discharge go so high

You should have liquid line filter/dryer that maybe restricted or there is a restriction in the orfice inside the evap coil normal operating pressures are 68/ 180

Oct 07, 2008 | Goodman Heating & Cooling

1 Answer

The suction line temp is 90 to 95 and drops down to about 68 on a residential unit checked the evap. it wasn't dirty flushed drain line wanted to know what could possibly be causing such a thing

Check the Liquid line drier. Make sure the temperature on either side of the drier is the SAME.
If there is no drier, and there is an expansion valve installed in the air handler, then it might be "hunting" or have some trash or non-condensibles in the lines. The Liquid line must be in the low to mid 200psi range. Is the condensor coil clean? It must be.
Also is the filter new and not too restirctive? Don't use one of those 3 month filters. Think about this, if it is so good, and lasts 3 months, then each month, it gets loaded more and more. Imagine the particulates collected over a 3 month period!
Hope this helps.
God Bless.

Aug 08, 2008 | Heating & Cooling

1 Answer

Extremely high head and suction pressures

disconnect the blower and turn on the ac.see if the coil frosts evenly.when you had the system open,you should have changed the liquid line drier.

Jul 29, 2008 | Heating & Cooling

2 Answers


I am thinking more along the lines that you have a restriction somewhere in the condenser sheet coil, or the condenser line coming from the compressor. If you have no suction pressure this would explain a restriction.

May 28, 2008 | Intertherm P3RA-048K Air Conditioner

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