Dismantling of refrigeration equipment - this is a process that requires not only physical strength, but also strict adherence to safety precautions, especially when it comes to older models filled with freon. Freon is a chemical compound that, under certain conditions, can be hazardous to human health and the environment. Many owners of old equipment who decide to disassemble them on their own underestimate the risks associated with depressurization of the cooling system.
Before starting work, you must clearly understand that refrigerant in old units it is often a flammable or toxic substance. Improper removal of gas may result in an explosion, fire or chemical poisoning. In this article, we will look in detail at the stages of safe preparation, methods for bleeding residual gas and a step-by-step algorithm for disassembling the housing and internal components.
The purpose of this manual is not just mechanical separation of parts, but competent disposal components while minimizing harm to the environment. You will learn what tools are needed to work with a metal casing and how to properly disconnect the compressor without damaging the tubes prematurely. Remember that haste in such matters is unacceptable.
⚠️ Attention: Working with refrigeration equipment requires special care. Freon in older models may contain oil impurities, which release extremely toxic substances when burned. Make sure that the area where dismantling will be carried out is well ventilated.
Risk assessment and workplace preparation
The first and most important step is to organize a safe space for work. Refrigerator - this is a heavy and bulky item, so the place must be spacious to ensure easy access from all sides. It is best to carry out work outside or in a garage where there is cross ventilation. In a closed apartment, even a small amount of released gas can create a dangerous concentration.
It is necessary to prepare special tools, without which safe disassembly is impossible. You will need a hammer drill or a powerful drill, a set of screwdrivers, pliers, wire cutters for cutting copper pipes and, most importantly, personal protective equipment. Respirator or a gas mask is required, since when insulation burns or gas leaks, harmful fumes can be released.
- 🛡️ Protective equipment: thick gloves, goggles to protect eyes from metal shavings, respirator.
- 🔧 Tools: screwdriver, metal scissors, hammer, pipe cutter.
- 🧹 Consumables: rags for collecting oil, container for draining liquids, bags for garbage.
Particular attention should be paid to electrical safety. Before starting any manipulations, make sure that the unit is completely disconnected from the network. Power cord it is better to immediately cut it off or securely fix it to prevent accidental switching on if there are charged capacitors left in the system. Although in modern models the risk of electric shock after a shutdown is minimal, reinsurance is never superfluous.
Technology for safe removal of freon
The most critical point in the entire process is removing the refrigerant from the system. Unlike professional services that use vacuum pumps to collect freon into cylinders, in domestic conditions the controlled release method is most often used. Freon is in a closed circuit under pressure, and its sudden release can lead to splashing of compressor oil.
To begin with you need to find the compressor located at the lower rear of the unit. Its body shows copper tubes going in and out of a black cylindrical tank. They are the ones you need to eat. However, this cannot be done live. Experienced craftsmen recommend first carefully filing the tube with a file or using a special piercing valve, if available, to slowly reduce the pressure.
⚠️ Attention: It is strictly forbidden to use an open flame near the freon release point! Many refrigerants, when in contact with a flame, form phosgene, a chemical warfare agent with an asphyxiating effect.
If you use the puncture method, do it in a well-ventilated place, with your back to the wind. After the hissing stops, we can assume that the bulk of the gas has escaped. However, there is still compressor oilremains in the system, which is mixed with freon. It also needs to be drained by unscrewing the bottom plug of the compressor or cutting through the tube at the lowest point.
What to do if freon does not come out?
Sometimes residual pressure may remain in the system or, conversely, a vacuum may form. If gas does not come out after cutting the tube, the capillary may be clogged. In this case, you can carefully blow out the system through another tube, but this should only be done in the open air and through a long hose so as not to inhale the fumes.
Dismantling the outer casing and doors
After the system is rendered harmless, you can begin disassembling the casing. Modern refrigerators often have a metal casing that is secured with screws and plastic latches. To begin, remove all visible screws on the back wall, in the base and inside the refrigerator compartment. Fastening elements can be hidden under decorative plugs.
Refrigerator doors are massive elements that create the main volume during transportation and interfere with access to entrails. They must be dismantled first. Typically the hinges are bolted at the top and bottom. When unscrewing the upper hinges, be sure to hold the door, as it can fall sharply and damage the floor or the master’s limbs.
| Element | Type of fastening | Required tool | Removal features |
|---|---|---|---|
| Refrigerator door | Hinges with bolts | Wrench, screwdriver | Heavy, needs an assistant |
| Back panel | Self-tapping screws perimeter | Screwdriver, Phillips bit | Careful with wires |
| Plinth grille | Plastic clips | Flat screwdriver | Breaks when pressed hard |
| Control panel | Latches and screws | Small Phillips screwdriver | Disconnect the cables |
By removing the doors and external panels, you will gain access to the insulating layer. In older models it may be glass wool, in new ones it may be polyurethane foam. When working with glass wool, compliance with protective measures (glasses, closed clothing, respirator) becomes critical, since microscopic fibers irritate the skin and respiratory tract.
Disassembling the internal space and insulation
The inside of the refrigerator is a plastic bath mounted in a metal box. Between them there is a layer of thermal insulation. Depending on the model, this may be a layer of foam or hardened foam. If your goal is to remove entire shelves, drawers and light bulbs, then you need to do this carefully, without applying excessive force to the plastic.
Insulating material often sticks to the walls and tubes of the evaporator. If you try to tear out the inner chamber, you can damage the aluminum tubes, which, however, after removing the freon, no longer pose a danger, but can be sharp. The plastic of old refrigerators becomes brittle and easily cracks in the cold or from impact.
- ❄️ Evaporator: located inside the chamber or behind the back panel, requires careful removal.
- 💡 Lighting: it is better to remove the lamp and shade immediately, so as not to break the glass during further disassembly.
- 🧊 No Frost system: if you have a model with this system, there will be a fan and a heater inside that need to be turned off.
To remove the inner plastic container, you often have to resort to radical measures: cutting out the sides or breaking the outer metal lining with a sledgehammer. If the metal is scrapped, then aesthetics are not important. The main thing is not to damage the condenser radiator (black grille on the back) if you plan to sell it separately, since copper and aluminum are more valuable in recycling than iron.
Removing the compressor and radiator grille
The compressor is the “heart” of the refrigerator, a heavy black cylinder attached to the frame. It contains copper windings and a steel body. To remove it, you need to cut through all the connecting tubes and unscrew the mounting bolts or cut off the legs. The weight of the compressor can reach 10-15 kg, so you need to lift it with a straight back.
The radiator grille, located on the rear wall, is a coil made of a thin tube with soldered aluminum plates. This is one of the most valuable items for scrap metal. The tubes are often aluminum, but can be used at the connections to the compressor copper. It is not necessary to separate them if you hand over scrap in a mixed form, but pure non-ferrous metal is always more expensive.
⚠️ Attention: When cutting the compressor, a small amount of oil may remain inside it. Place the container or place the unit on a rag so as not to stain the floor or clothes. This oil is waste and requires proper disposal.
If you plan to use the compressor for homemade projects (for example, as a compressor for an airbrush), then you should not open its sealed housing. If the goal is disposal, then it can be pierced to make sure there is no pressure or gas residue. To do this, just drill a hole in the upper part of the dome.
☑️ Check before scrapping
Sorting materials and waste disposal
After complete disassembly, you will find a pile of dissimilar materials in front of you. For efficient and environmentally friendly disposal, they must be sorted. Ferrous metal (body, doors, frame) are put into one category, non-ferrous metals (copper, brass, aluminum) - into another, and plastic and insulation often require a separate approach.
Plastic from refrigerators, especially if it is old polystyrene foam or polystyrene, should absolutely not be burned. When burned, it emits black toxic smoke and styrene, which is harmful to the nervous system. It is best to hand over solid plastic parts to special collection points, if there are one in your area, or take them to a solid waste landfill.
Electronic components, such as control boards, thermostats and wires, also contain valuable but potentially hazardous substances. Wires can only be burned to produce copper in an industrial setting with filters; at home, this will lead to air pollution with dioxins. Collect the wiring in a separate bag for subsequent delivery.
Frequently asked questions (FAQ)
Is it possible to simply release freon in a room by opening a window?
This is not recommended. Although modern freons (R134a) are considered less dangerous than older ones (R12), in a confined space they displace oxygen. In addition, oil mist always comes out along with the gas, which settles on surfaces and is difficult to wash off. It is better to carry out this operation outside.
What to do with glass wool from an old refrigerator?
Glass wool must be carefully collected in tight bags so that the fibers do not fly away. It is not advisable to throw it into a regular trash container; it is better to find a collection point for construction waste. When working with it, be sure to use a respirator and long sleeves.
Does it make sense to disassemble a refrigerator for profit?
If we consider this as a business, then the profit from one refrigerator will be minimal (conditionally 300-500 rubles for the entire scrap). However, if you have access to a large amount of equipment or are engaged in this professionally, then the extraction of copper and aluminum can be a source of additional income.
What is dangerous about freon R12, which is used in old refrigerators?
Freon R12 (dichlorodifluoromethane), when heated or in contact with an open fire, decomposes to form phosgene - a combat chemical poisonous substance. It also destroys the ozone layer of the planet, so its release and use is prohibited in many countries, but it is still found in old equipment.
Do I need to register somewhere to recycle a refrigerator?
For self-disassembly, registration is not required. However, if you plan to hand over a large batch of scrap or call a special service for removal, you may need documents confirming the origin of the metal to avoid questions from law enforcement agencies.