Liquid line freeze up

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Hi,

Unit is low on freon......

Many times a freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong.

If you are hearing a clicking or buzzing then check out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay


Refrigerator or Freezer not Cooling or Getting...

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Chlorodifluoromethane, also known as R22 refrigerant has a boiling point of -40°F at 0 psi. As you increase the pressure of the refrigerant, the boiling point also increases. At 68.5 psi, the boiling point of R22 is 40°F.

In a normally functioning system, the refrigerant is sent into the evaporator at about 55-65 psi. Which means that the boiling point will be above the freezing temperature of water. The refrigerant absorbs heat from the air passing through the evaporator, boils, and flows on down the line at a temperature above the freezing point of water. The refrigerant will likely be below the dew point, however, so there will be condensation on the line.

If the pressure in the system drops, the R22 might be entering the evaporator a bit lower than the typical pressure. In this case, the boiling point of the R22 will be below the freezing temperature of water. As the warm moist air moves over the evaporator, the moisture condenses and freezes on the coils. Ice...

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Winter time can be problematic for heavy duty trucks and off-highway equipment. In very low temperatures, the paraffin waxes in fuel can solidify, causing clogging of filters and fuel lines. You will have to take measures to prevent fuel line freeze ups especially if ‘arctic grade fuel’ is unavailable in your area. Arctic Fox offers a wide range of solutions.

Freeze up prevention since 1979

Arctic Fox was founded in 1979 and since then has been a major player in the field of fuel line freeze up prevention. We have been a quality approved supplier to vehicles by major truck OEMs since 1984 and our products are currently being installed in production vehicles by some of North America’s main truck producers – Freightliner, Peterbilt and Western Star, to name but a few. We have prevented fuel line freeze up for nearly four decades and our worldwide distribution network assures availability all over the globe.

Electrically powered

Our range of electrically...

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Yes, easily, in a number of differring circumstances; Firstly, when any gas COMpresses, we all know from Grade School, according to the Standard Gas Law; PV=nR

…T its temperature INcreases. Any propane container re-filling employee can tell you that the 'bottle' warms up as it fills, whereas the tank from which he draws the propane, despite being much larger, grows noticeably cooler. Therefore, when you DEcompress the propane 'bottle', it cools at a rate proportional to the rate of decompression. If the bottle is far enough away from the barbeque, shaded and away from any breezes, a continuous high-temp open-lid barbeque session can easily cause frost to accumulate on the bottle and the regulator. OTOH, in temperatures below 32F/0C, high humidity and quickly falling temperatures can deposit frost on anything, not just propane barbeque bottle regulators. Luckily, both situations can be easily 'cured' by time; just bring the bottle into the sun for a short while, and even...
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There are many questions about air conditioner issues with the most common being that it isn't cooling properly. Among the typical answers are low Freon and the standard diagnosis for low Freon is ice on the large copper pipe at the outside compressor.

From my understanding the small copper tube is the high pressure side with Freon that has been compressed to a liquid. When this liquid is allowed to boil in the inside evaporator things cool down.

Conversely the large copper pipe is the return line from the evaporator sometimes referred to as the suction line or low pressure side.

So my question is: under low Freon conditions how can the suction line freeze up?

Intuitively I would thing with low Freon the entire cooling ability would be below normal causing the evaporator to not produce as much cold air. A side effect of all this, I would expect the suction line to be warmer that normal.

Chlorodifluoromethane, also known as R22 refrigerant has a...

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Yikes!

Your outside air conditioning refrigerant line is covered in ice—which seems crazy in Arizona heat.

What’s the deal?

Chances are, the indoor unit’s evaporator coil is frozen solid and cold liquid refrigerant is flowing to the outside unit through the refrigerant line (which is why it’s covered in ice).

This is an evaporator coil.

DO THIS RIGHT NOW: Turn off your AC and turn the fan setting to “On.” This will unfreeze the evaporator coil and prevent any damage to the compressor (a very expensive part you don’t want to replace).

Now, let’s delve into what can cause an evaporator coil to freeze up and what you can do to ensure this never happens again.

What causes the evaporator coil to freeze up

An evaporator coil, a group of copper tubes, freezes when the refrigerant flowing through the tubes gets too cold, causing the moisture in the surrounding air to freeze.

So what causes the refrigerant to get too...

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Here is some of the information about the attempts this one is from florida where they replaced the lines

1-AE5Z-19E616-A MOTOR ASY

1-AE6Z19835-C TUBE ASY

1-AE6Z-19D734-A TUBE ASY

29-YN-19 REFRIGERANT

1-YN-12-D OIL-COMPRES

1-AE5Z-19849-A VALVE ASY-EV

this was the work done in November. In October before I had to go to florida, the NJ dealer did the following

19700A PRESSURE LEAK TEST, DISCHARGE, EVACUATE AND CHARGE AIR CONDIONING SYSTEM

1-AE5Z-19849-A VALVE ASY-EVAPORATOR EXPANSION

14-YN-19-REFRIGERANT-R-134A

19700A13 VALVE-AIR CONDITIONER EVAPORATOR EXPANSION-REPLACE (19849)

1700A13 FILL AND BLEED AC SYSTEM

19700A PRESSURIZE, LEAK TEST, CISCHARGE, EVACUATE AND CHARGE AIR CONDITIONING SYSTEM

fc: C20 42

PART #: AE5Z-19849-A

Some of the other paperwork is in the car at the dealer. The first attempt they said that they had to reprogram the computer that was back in late...

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When summer’s here, or really any time you want cool, dry air while driving, your car’s air conditioner (AC) is critical to your comfort and safety. Unfortunately, frozen AC lines can put a major kink in your road trip. Why are your car AC lines freezing up, and what you can do about it?

Usually, AC is one of those forgotten systems that you never really think about until it stops working. Sometimes there can be worn or unmodified AC systems that function for years without a problem. On the other hand, if your car has been in an accident, has ever had any AC components removed or had any service done, the situation is ripe for frozen AC lines.

What Causes Car AC Lines to Freeze Up?

Really, the only thing that should be in your car’s AC system is refrigerant and oil. To keep these things inside and others — such as air, moisture and dirt — out, the pipes, hoses and seals are specially designed to maintain a tight seal. The problem of car AC lines freezing up is...

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It is not uncommon for heat pumps to freeze-up in either winter or summer. It is always the evaporator that freezes which means the outdoor unit in winter and indoor unit in summer. It is also possible for the liquid line (smaller diameter pipes) to freeze.

The most common and easily explained cause is freezing rain in the winter and inadequately long defrost cycles. In the winter the outdoor coil is cooling down as it transfers heat into the house and this will cause moisture in the air to freeze and accumulate on the coil fins. This is expected and perfectly normal but has to be melted off periodically to ensure proper air flow across the fins and adequate heat transfer.

In the summer the same thing can happen indoors under certain conditions and high humidity conditions. There are a slew of different service related issues that can cause freezing which would take too much time to explain but the most common ones are improper refrigerant charge or air flow....

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Your car won't start in cold weather if water or condensation gets into the fuel line and freezes there. Frozen fuel lines prevent gas from moving into either your engine's fuel injector or carburetor. Worse, the moisture can eventually cause rust and other damage to the metal parts of your engine's fuel system. Using exterior heat to warm the fuel lines can sometimes unfreeze the moisture enough so that you can start the car, but if you do not completely dry out the moisture that causes the line to freeze in the first place, the problem can recur when the car cools down.

Purchase a commercially available isopropyl-based fuel line antifreeze, such as STP, HEET or Pyroil. You can buy these products at most automotive supply stores and service stations.

Pour the antifreeze directly into the fuel tank. It does not matter if the tank is full or not--the antifreeze will not harm your tank, the engine or the fuel system and its lines.

Wait 15 to 20 minutes, so that...

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WASHINGTON (AP) — The BP oil spill left an oily “bathub ring” on the sea floor that’s about the size of Rhode Island, new research shows.

The study by David Valentine, the chief scientist on the federal damage assessment research ships, estimates that about 10 million gallons of oil coagulated on the floor of the Gulf of Mexico around the damaged Deepwater Horizons oil rig.

Valentine, a geochemistry professor at the University of California Santa Barbara, said the spill from the Macondo well left other splotches containing even more oil. He said it is obvious where the oil is from, even though there were no chemical signature tests because over time the oil has degraded.

“There’s this sort of ring where you see around the Macondo well where the concentrations are elevated,” Valentine said. The study, published in Monday’s Proceedings of the National Academy of Sciences, calls it a “bathtub ring.”

Oil levels inside the ring were as much as 10,000 times...

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Furmanite’s Line Freezing & Pipe Freeze Plugging Services – Keeping Critical Pipe Systems Online and Preventing Unwanted Shutdowns…

For over 80 years, Furmanite has made it our business to keep critical pipe systems online and prevent unwanted shutdowns. As part of this commitment, we are proud to offer Pipe Freeze Plugging also known as Pipe Freeze Stopping. Freeze Plugs are an alternative option to our Line Stopping services and are designed to effectively isolate sections of pipe where valves are unavailable or inoperable. Through a combination of Furmanite’s Hot Tapping , Line Stopping, and Pipe Freeze Plugging services you can be assured that your pipe systems will stay in service 24 hours a day, 7 days a week. Put us to the test and you will see why at Furmanite, “We work best – Under Pressure”.

Pipe Freezing Technology

An effective means of system isolation, freeze plugs are developed within the pipe system through the application of CO2 or liquid...

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by Marc Ward
Clay Times Nov. 2003

Last issue, I talked about treating symptoms instead of treating the underlying problem. It’s a common response to a situation,… especially if we don’t really understand the nature of the problem. When you read this, one of my symptom seasons will be about over. The season is the raku season during the spring, summer, and early fall. The symptom is propane tank freeze-up. The only reason it isn’t as much of a problem in the winter is that the majority of people firing raku live where it’s unpleasantly cold to stand outside for hours at a time. Otherwise, the problem would be worse.


So, if tank freeze-up is the symptom, what exactly is the problem?


Before we get to the problem, I just want to make one point in regards to a popular treatment of the symptom. I guarantee Manchester Tank (one of the leading manufacturer of propane cylinders) doesn’t design or want people to use their cylinders as flotation...

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