What is used to fill a refrigerator Stinol: types of freon, oils and maintenance rules

Brand refrigerators Stinol are one of the most common in Russia and the CIS countries. Their reliability has been tested by time, but even such equipment requires periodic maintenance. One of the key issues during repair or diagnostics is refrigerant charging a procedure without which the refrigerator simply will not cool. However, not everyone knows that models Stinol of different years of production use different types of freon, and the wrong choice can lead to compressor breakdown or deterioration in operating efficiency.

In this article we will look at how to determine the type freon by model, what filling volumes are relevant for popular series, and what to look for when doing your own repairs. We will also discuss the signs of a freon leak and the consequences of using unsuitable compounds. what refrigerants and oils are used in refrigerators Stinol, how to determine the type of freon by model, what refill volumes are relevant for popular series, and what to look for when doing your own repairs. We will also discuss the signs of a freon leak and the consequences of using inappropriate compounds.

If you plan to refill the refrigerator Stinol with your own hands, it is important to understand: a mistake in choosing a refrigerant or oil can result in costly repairs. For example, refueling R134a instead of R600a will not only reduce the efficiency of the system, but also increase the load on the compressor, reducing its resource. And the wrong oil will lead to jamming of the mechanisms.

1. What types of freon are used in Stinol refrigerators

Refrigerators Stinol over their history have gone through several stages of refrigerant evolution. Early models (before the 2000s) were often refilled with freon, which is now banned due to its harm to the ozone layer. Later, the manufacturer switched to more environmentally friendly options: R12 - freon, which is now banned due to its harm to the ozone layer. Later, the manufacturer switched to more environmentally friendly options:

• 🔹 R134a is the most common refrigerant in models Stinol 2000–2010. It is non-toxic, but requires special oil (POE).
• 🔹 R600a (isobutane) - modern freon for refrigerators after 2010. It is environmentally friendly, but flammable (requires caution when refueling).
• 🔹 R404A - less common, mainly in commercial models or freezers Stinol.

You can determine the type of freon by nameplate on the compressor or in the technical data sheet refrigerator. If the documentation is lost, focus on the year of manufacture:

• 📅 Until 2000 - most likely R12 (replacement with R134a possible, but requires flushing the system).
• 📅 2000–2010 — R134a.
• 📅 After 2010 — R600a.

Important: refrigerators Stinol with freon R600a are charged with a minimum amount of refrigerant (usually 40–60 grams), while models with R134a require 80–120 grams. Exceeding the norm will lead to increased pressure and the risk of rupture of the capillary tube.

2. What kind of oil to pour into the Stinol compressor

The oil in the refrigerator Stinol performs two key functions: lubricating the compressor and dissolving freon for circulation through the system. Incompatibility of oil and refrigerant is one of the main causes of breakdowns after refueling. Here is the correspondence of types:

When replacing freon from R12 to R134a be sure to flush the system and replace the oil with POE. Remaining mineral oil will react with the new refrigerant, forming acids that will destroy the compressor.

The volume of oil in compressors Stinol depends on the model:

• 🔧 Small compressors (up to 1/6 hp) - 200-250 ml.
• 🔧 Medium (1/4-1/3 hp) - 300-400 ml.
• 🔧 Large (for freezers) - up to 500 ml.

3. Freon refill volumes for popular Stinol models

The amount of freon in the refrigerator Stinol depends on the length of the pipeline, the volume of the chambers and the type of compressor. Overfilling or underfilling are equally harmful: in the first case, the pressure increases, in the second, cooling worsens. Below are the approximate standards for common series:

To accurately determine the volume of freon:

1. Find the marking on the compressor (for example, Danfoss NL6L or Embraco EG80H).
2. Check the data in the technical data sheet or on the website of the compressor manufacturer.
3. If there is no information, fill by weight, monitoring the pressure on the pressure gauge (for R134a — 0.1–0.3 MPa at suction, for R600a — 0.05–0.15 MPa).

Check the type of freon on the nameplate|Vacuum the system (at least 30 minutes)|Use only compatible oil|Control the weight of freon on the scale|Check the tightness of the connections with a soap solution

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4. Signs of a freon leak and diagnostics

Refrigerant leakage is the most common cause of loss of cold in refrigerators Stinol. Its symptoms:

• ❄️ The compressor works without stopping, but the refrigerator does not freeze.
• 🔥 The condenser (grid at the back) remains cold.
• 💨 Frost appears in the freezer only near the evaporator.
• 🔊 Extraneous sounds (hissing) when the compressor is turned on.

For diagnostics leaks:

1. Turn off the refrigerator and defrost it.
2. Inspect the places where the tubes are soldered (especially at the bottom of the back wall) for oil stains.
3. Apply a soap solution to suspicious areas - bubbles will indicate a crack.
4. Use an electronic leak detector for freon (if you have access to a tool).

Typical leak locations in Stinol:

• 🔧 Connection of the capillary tube with the filter drier.
• 🔧 Soldered seams of the evaporator (especially in models with No Frost).
• 🔧 Copper tubes, rubbed against the body during vibration.

⚠️ Attention: If after refueling the refrigerator Stinol works for 5-10 minutes and turns off with a loud click, this is a sign water hammer that the freon does not have time to evaporate in the condenser. Immediately bleed off some of the refrigerant!