Question about Amana Heating & Cooling

1 Answer

Goodman split type system, model MSG12CRN1W Want

Goodman split type system, model MSG12CRN1W Want to know how the refrigerant tubing should be connected, I believe it may have been installed incorrectly

Posted by on

  • James Haase Oct 01, 2010

    On this mini-split system the smaller line is only 1/4" and the larger is 2/3" and going into the outside unit they are same size and from inside unit the same, I wanted to see a diagram so I can determine which is for which

  • James Haase Oct 05, 2010

    My main concern is that the smaller size(liquid side) is freezing up. I have never seen this but this is the first unit that uses R410a that I have dealt with. Maybe that is normal for that refrigerant just seems odd to me because every unit I have ever come across would have the suction side freeze up if low on refrigerant and the liquid side generally warms up a tad when operating.


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,515 Answers

Hi, this is very easy to find out. The out door unit has 2- copper lines coming out of it. A small one on the unit, 3/8" and a large one either a 3/4" or 7/8" depending on the size.2- rolls of copper called the line set are silver brazed into the fittings coming out of the outdoor unit of the same size and uncoiled and ran to the indoor evaporator coil. Again, one is brazed into the smaller open fitting, 3/8" and the other into the larger of the two. There is only one way to install these as the open fittings are made for you to put your lines into at the factory and silver braze them. They could have cut a line and did there own design, but that would be wrong. What kind of problems are you having? I have seen installers add to many joints to connect to and they would be in the way of the panels going on right, but its pretty much cut and dry, a larger suction line at each end, and a smaller liquid/discharge line on both ends. Please let me know the problem?
A/C, & Heating Contractor

Posted on Oct 01, 2010

  • Robert Horton
    Robert Horton Oct 05, 2010

    I have never seen a many split with the same size lines going in? Something new. The 1/4" sounds right, but it would have to be 5/8" or 3/4" not 2/3". There has to be a diagram on the outdoor panel showing where they go. On all a/c I have ever seen, one, the larger is the suction line that the compressor sucks back from, and the smaller is the liquid or discharge line that freon goes the other way. The openings being the same are very unusual indeed.. Call the factor where you bought it, you should have a manual I would think?

  • Robert Horton
    Robert Horton Oct 05, 2010

    Hi, I looked up this model unit, only to find that the pipe connections are flared which I knew this, about 1/2 way up the wall along with the condensate line and electrical, and looked up the line sizes and it said that the liquid which is your high pressure side is 1/4 ", always the smaller. The suction line is 1/2" not 2/3". On the outdoor unit, you say the line sizes are the same? It should be stamped High side and low side. High is always smaller and on the left side facing it. Low will always be larger and be on the right side. I hope you have figured this out.


1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Want to reinstall...split system heat pump and gas furnace both goodman

What is current refrigerant being used in the system being replaced? What are the sizes of the existing breakers for the Air Handler, and the outside unit? Do you plan on replacing cooper lines ? Use drain line already there?


Dec 05, 2015 | Goodman Heating & Cooling

1 Answer

My Goodman condenser which was recently replaced is making a severe swashing noise when it stops. Like a back flush or something. Need to know if this standard.

Normally if it does not sound right, it is not right. By your discription it sounds like your compressor is having a problem with flood back caused by a txv not metering properly, or an overcharged system. You will need a tech who can determine superheat and subcool for your refrigerant system. Find a tech who can determine these values. Superheat and subcool is normally around 8 -12 degrees. Superheat is the amount of additional heat the refrigerant picks up in the evaporator once it is turned to gas and is needed to keep liquid refrigerant from flooding back to the compressor. Compressor are designed to compress gas not liquid. Subcool is the additional cooling refrigerant undergoes once the refrigerant turns back into into liquid in the conderser. Subcool ensures the refrigerant remains in liquid form until it reaches the metering device. Only liquid suppied metering devices will pass the required amount of refrigerant to achieve the rated cooing or heating rates. If it is liquid flood back, your compressor will be damaged and will need to be replaced. Hope this helps

Oct 07, 2014 | Goodman Manufacturing Goodman R410A 13...

1 Answer

What does code blinking five times mean

need to read inside diagram, will tell u what lights mean.

Jul 10, 2013 | Goodman Manufacturing MSG12CRN1N -...

1 Answer

Unit wont start and error code led is blinking five times

Check the unit from the outside. This happened to me: 1.) The unit was not raised off the ground 2.) Rodents had chewed on it. Or it could be: 3.) Replace batteries 4.) The unit will not work off season when it gets too cold to use the cool air option.

Jul 10, 2013 | Goodman Manufacturing MSG12CRN1N -...

1 Answer

Where is the fuse/breaker on a goodman cple 18-1

Hi, I wanted to look up the numbers you gave me as you listed 2 different model numbers, the CPLE-18-1 is a 1&1/2 remote condenser and the other you showed CPLE-24-1 is a 2 ton unit. Doesn't matter, but if your power was lost you have your main breaker box at your meter, and at the condenser you will have a disconnect box with a pull out type plug. If you see no fuses, try removing the plastic cover as they are required to install 2-fuses in side the box also. If this is a split system with the outdoor and indoor unit, you will also have a breaker inside for the indoor unit, its high voltage and you will have a circuit board in the indoor unit with a 3 to 5 amp auto type plug in fuse.
I hope this has helped you out on this. I will be here if you have more questions. Please do not forget to rate me as I know you will be kind. Keep me posted.
A/C, Heating, & Refrigeration Contracted

Aug 08, 2010 | Goodman CPLE24-1 Air Conditioner

1 Answer

I am looking for how many tons of cooling my goodman condensor provides

  • Here's the data you requested:
  • Goodman CKL42AR42 Split System Air Conditioner
  • Type: Split System
  • Cooling Capacity: 40000 BTU/hr (3.3 tons)
  • Energy Efficiency Rating: 9 EER

Mar 19, 2010 | Goodman CKL42AR42 Air Conditioner

1 Answer

How to insert oil in outdoor of split type airconditioner

You shouldn't have to add oil. The little bit that leaks out with refrigerant isn't significant. I would be more concerned about the leak itself. Has it been located and fixed. If not it will no doubt leak out again. Also do you know how much refrigerant to put in the system? Have you vacuumed the air/moisture from the system etc. Is the system totally flat or is there still some refrigerant in it? Let me know so I can advise you correctly.

Feb 23, 2009 | Cfm Daikin R410a Split System Air...

1 Answer

Goodman with 2 thermostats, freezes in summer, no heat in winter

is the system zoned? if so maybe the zoning control board to the damper motor is wired improperly. when a system freezez its because of 1- restricted air flow across coil, (maybe dirty filter) or 2-low refrigerant charge. again could depend on how its zoned.

Feb 16, 2009 | Goodman PHKJ048-1 Air Conditioner

1 Answer

No model number...

If this is a split system, look on the side of the furnace, no luck? remove the front panel. look for a little plate or sticker label inside there somewhere. If you are in California, there is a Goodman (A.K.A.) Janitrol, in Ontario CA. They may be able to help. (sorry don't remember phone #)

Dec 27, 2007 | Goodman GDS80904BNA Open Flame Heater

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

Related Topics:

263 people viewed this question

Ask a Question

Usually answered in minutes!

Top Amana Heating & Cooling Experts

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Bill Long

Level 3 Expert

587 Answers

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

Answer questions

Manuals & User Guides