What gas is in the refrigerator Biryusa: R600a or R134a? Let's understand refrigerants

If If you wondered what gas is used in the Biryusa refrigerator, you are most likely faced with one of two situations: either you are planning refilling the system after the leak, or you are simply interested in the design of your equipment. Modern models of this Russian brand use two types of refrigerants - isobutane (R600a) and tetrafluoroethane (R134a). The choice depends on the year of manufacture, model and even the specific modification of the refrigerator.

It is important to understand that the type of gas affects not only environmental friendliness i cooling efficiency, but also operational safety. For example, R600a is a flammable gas, so its leakage requires special attention to room ventilation. At the same time, R134a is considered more inert, but less energy efficient. How can you determine which refrigerant is circulating in your refrigerator Biryusa? More on this later in the article.

Why do Biryusa refrigerators use different types of gases?

The manufacturer Biryusa switched to environmentally friendly refrigerants back in the 2010s, abandoning the outdated R12 freon, which destroyed the ozone layer. Today, the brand’s line includes both models with R600a (isobutane) and with R134a. Let's figure out why this happens:

• 🌍 Environmental standards: R134a was a transitional solution after the ban on R12, but later it also came under restrictions due to its high global warming potential (GWP). R600a has a GWP almost 1000 times lower.
• ⚡ Energy efficiency: Isobutane (R600a) allows you to reduce the energy consumption of the refrigerator by 10-15% compared to R134a, which is important for modern class standards. A+++.
• 💰 Production cost: R134a is cheaper to refill, so it is still used in budget models and refrigerators older than 2015.
• 🔥 Safety: R600a is flammable, but its amount in the system is minimal (usually up to 150 grams), and R134a is non-toxic and non-explosive.

It is interesting that in European countries R600a has become the de facto standard for household refrigerators, while in Russia there are still models with R134a - especially in the ranges Biryusa-18, Biryusa-22 and other “classic” series. To find out exactly what gas is in your refrigerator, you need to look at the technical documentation or look for the markings on the compressor.

How to determine the type of gas in the Biryusa refrigerator by models

The most reliable way to find out what refrigerant is used is look at the nameplate (metal plate) on the back of the refrigerator or on the compressor. Look for inscriptions like:

• Refrigerant: R600a or Isobutane
• Refrigerant: R134a or Tetrafluoroethane

If the plate is worn out or missing, you can use database by model. Here is the general pattern for Biryusa:

If your model is not included in the table, check refrigerator passport or use the search by model number on the manufacturer’s website. Please note: in some two-chamber models (for example, Biryusa-150) R600a can be used in the freezer and R134a in the refrigerator. This is rare, but it happens. gas combination — R600a in the freezer and R134a in the refrigerator. This is rare, but it does happen.

Technical characteristics: R600a vs R134a in Biryusa refrigerators

To understand how these refrigerants differ, let’s compare their key parameters in the context of the operation of the refrigerator:

The table shows that R600a wins in terms of environmental friendliness and energy saving, but loses in security. However, the risk of ignition is minimal: this requires a gas concentration in the air of more than 1.3%, and there is only ~100 grams of it in the refrigerator. In addition, isobutane is heavier than air and quickly settles without accumulating in the room.

On the other hand, R134a requires higher pressure in the systemwhich increases the load on the compressor. This may affect the durability refrigerator, especially if it is operated in a hot climate. In models Biryusa with R134a, problems with leakage through microcracks in the circuit are more common.

Dangers of gas leakage: what to do if freon is released in the Biryusa refrigerator

Refrigerant leakage is one of the most common malfunctions of refrigerators. In the case of Biryusa the consequences depend on the type of gas:

• ⚠️ R600a leakage:
  • 🔥 Risk of ignition at a concentration of >1.3% in air (unlikely in everyday life).
  • 🤒 Dizziness or nausea may occur if large amounts of gas are inhaled.
  • 🌬️ Ventilate the area for 10-15 minutes.
• ⚠️ R134a leakage:
  • 🤧 May cause irritation mucous membranes (cough, sore throat).
  • ☁️ Gas is heavier than air - it accumulates at the bottom, so you need to ventilate near the floor.
  • ⚙️ Requires urgent refueling, since running the compressor “dry” leads to its breakdown.

How to understand that in refrigerator gas leak?

• 🔊 The compressor works non-stop, but there is no cold.
• ❄️ Frost or ice appears on the back wall of the refrigerator.
• 🌡️ The temperature in the chambers is not drops below +10...+15°C.
• 💨 Hissing is heard in the compressor area (if there is a large leak).

⚠️ Attention: If you suspect a leak of R600a, do not turn on the refrigeratoruntil you ventilate the room. Isobutane can be ignited by a spark (for example, when turning on a light or outlet). For R134a this is not relevant, but inhaling it is also harmful.

Fix the leak yourself and refill the system almost impossible - special equipment is required (vacuum pump, pressure gauges, gas cylinder) and a certificate for working with refrigerants. Average cost of refueling at a service center:

• R600a: 2500–4000 ₽ (including leak diagnostics).
• R134a: 2000–3500 ₽.

Is it possible to replace R134a with R600a in the Biryusa refrigerator?

Theoretically replacing the refrigerant is possible, but in practice this is impractical for several reasons:

1. Different oils: For R600a is used mineral oil, and for R134a - synthetic (POE). When replacing gas, you will have to completely drain and flush the system, which is expensive.
2. The pressure in the circuit: R600a operates at lower pressure. If you simply charge it instead of R134a, the compressor may underpump gas, and the refrigerator will not freeze well.
3. Modification of the capillary tube: Isobutane often requires a larger diameter tube, otherwise will occur clogging with ice.
4. Certification: Independent gas replacement voids the warranty and can be dangerous (risk of R600a fuel leakage).

Exception - old models with R12 (until 2010). They required need to be converted to R600a or R134a, since the original freon is prohibited. In this case, the replacement is justified, but must be carried out in a service center with a complete flushing the system and oil change.

⚠️ Attention: If your The refrigerator Biryusa was manufactured before 2000, most likely there is still some left in it R12. This gas destroys the ozone layer and is prohibited for use. Contact the service to replace it with R600a - this will extend the life of the equipment and make it environmentally friendly.

What happens if you mix R600a and R134a?

Mixing these gases strictly prohibited! They are incompatible in chemical composition and properties. In the best case, the refrigerator will not work, in the worst, a chemical reaction will occur with damage to the compressor or an explosion of the gas mixture (due to the flammability of R600a).

How to check the tightness of the system before refueling gas

If you suspect a leak, you must check the system for leaksbefore refueling. For this purpose, service centers use nitrogen under pressure i leak detector, but at home you can do preliminary diagnostics:

Unplug the refrigerator and defrost it|Inspect the back wall for oil stains (a sign of a leak)|Check the soldering joints of the tubes - microcracks often form there|Listen to the compressor: hissing or gurgling indicates a leak|If possible, use a soapy solution to check the connections (bubbles = leakage)-->

The most vulnerable places in refrigerators Turkish:

• 🔧 Soldering points tubes (especially in models older than 10 years).
• 🧊 Evaporator (corrosion of aluminum tubes due to condensation).
• ⚙️ Compressor (leakage through the stuffing box or seals).
• 🔗 Connection of the capillary tube with the filter drier.

If leak confirmed do not fill gas yourself! In the case of R600a, this is dangerous (risk of explosion), but with R134a it is pointless, since without eliminating the cause of the leak, the refrigerant will quickly come out again. Average cost of repair (soldering + refilling) in the service:

Frequently asked questions about gas in Biryusa refrigerators

❓ Is it possible to fill the Biryusa refrigerator with freon yourself?

Technically it is possible, but highly not recommended. For refilling you need:

• Vacuum pump (for pumping air out of the system).
• Gauge manifold (for pressure control).
• Refrigerant cylinder and scales (for accurate dosage).
• Leak detector (to check the tightness after refueling).

Without experience, you risk overfill the system (which leads to compressor failure) or underfill (the refrigerator will not freeze). In addition, working with R600a requires compliance with safety precautions due to its flammability.

❓ Which gas is better for a refrigerator: R600a or R134a?

From the point view ecological and energy efficient definitely wins R600a. It is:

• Consumes 10–15% less electricity.
• Does not destroy the ozone layer (ODP=0).
• Has a minimal GWP (only 3 versus 1430 R134a).

However R134a is safer in terms of fire hazard and easier to maintain. If your refrigerator Biryusa is already filled with R134a and works stably, there is no point in changing the gas. But when buying a new model, it is better to choose options with R600a.

❓ How much gas is needed to refill the Biryusa refrigerator?

The volume of refrigerant depends from models and chamber volumes. Average values:

• Single-chamber refrigerators (up to 150 l): 50–80 g R600a or 80–120 g R134a.
• Double-chamber (150–300 l): 100–150 g R600a or 120–200 g R134a.
• Side-by-Side (over 300 l): up to 250 g R600a.

The exact amount is indicated on the compressor nameplate or in the service documentation. Refilling even 20% can lead to increased pressure compressor breakdown.

❓ What is dangerous about old freon R12 in Biryusa refrigerators?

R12 (dichlorodifluoromethane) banned since 2010 due to:

• 🌍 Ozone depletion (ODP=1).
• 💀 Inhalation toxicity (may cause suffocation).
• 🔥 Flammability (although lower than R600a).

If in your refrigerator Biryusa (for example, model Biryusa-3 or Biryusa-6) there is still R12 left, it needs to be replaced on R600a or R134a. Replacement cost: 3000–6000 ₽ (including flushing the system and changing the oil).

❓ How often should you check the gas level in the refrigerator?

Under normal conditions, the refrigerant does not evaporate circulates in a closed circuit. Checking the gas level is only necessary in the following cases:

• 🔧 After system repair (soldering tubes, compressor replacement).
• ❄️ If refrigerator stopped freezing, and the compressor works without stopping.
• 🕒 Once every 7–10 years for prevention (especially in models older than 2010).

Check the gas level yourself impossible —for this you need a pressure gauge manifold. If the refrigerator operates stably, no “preventative” refills are required.