Refrigerator owners are often faced with a situation where the volume of the freezer compartment no longer meets current needs. Seasonal preparations, purchasing meat in bulk, or simply the desire to create a strategic stock of products require more space than provided by the standard design. Freezer compartment is a critical unit, and its expansion can be implemented in several ways, from simple organizational measures to complex technical modernization.
Before you begin to physical changes, it is necessary to clearly understand that the design of a household refrigerator rarely provides for a dramatic increase in internal volume without loss of operating efficiency compressor. However, there are a number of proven methods that allow you to gain useful space or increase the efficiency of freezing the existing volume. In this article we will look at both organizational techniques and technical interventions.
It is worth immediately noting that any intervention in the cooling system requires caution. Refrigerantcirculating in the tubes is under pressure, and a violation of the tightness of the circuit will lead to failure of the unit. Therefore, you should start with an analysis of the current use of space and only then move on to more complex manipulations.
Organizing space and optimizing storage
The most affordable and safest way to “increase” the usable volume is the competent organization of storage. Chaotically scattered packages take up up to 30% more space than structured inventory. The use of specialized containers and sorting systems allows you to use every cubic centimeter of the freezer compartment.
An effective method is vacuuming products. Removing air from bags of meat, vegetables or berries reduces their volume by 1.5–2 times. This not only frees up space, but also prevents freezer burn (moisture freezing), preserving the taste of products longer. Vacuumator becomes an indispensable assistant for owners of small chambers.
⚠️ Attention: Do not overcrowd the chamber. For efficient operation of the system No Frost or static cooling, air circulation is necessary. An overloaded evaporator will lead to the formation of an ice coat and overload of the compressor.
It is also worth reconsidering the approach to the preliminary preparation of products. Freezing liquids and processed foods in flat bags or rectangular containers allows them to be stacked, as opposed to round containers that leave voids between them.
- 📦 Use rectangular containers instead of round ones to minimize voids.
- ❄️ Vacuum seal foods to reduce their physical strength volume.
- 📋 Make a storage map to quickly find what you need and not keep the door open.
Another nuance is a regular inventory audit. Often in the back of the chamber there are products that expired months ago. Freeing up this space instantly gives a feeling of “increasing” volume.
Modernization of the cooling system: replacing the evaporator
If organizational measures have been exhausted, you can consider technical modernization. In manual defrost refrigerators, a standard plate evaporator often takes up significant space and has low heat transfer efficiency. Replacing it with a more modern tubular-fin evaporator (DA-series) can increase the freezing efficiency.
A more radical method is to install an additional cooling circuit or replace the standard evaporator with an analogue with a larger heat exchange area. This allows you to freeze food faster, which indirectly “enlarges” the chamber, since the food does not have time to lose quality when waiting for a long time to freeze. However, this requires intervention in the freon line.
It is important to understand the physics of the process: increasing the evaporator power without replacing the compressor can lead to the unit operating without shutting down. Therefore, such work should only be carried out by a qualified craftsman with experience in selecting components.
Risks of independent soldering
An attempt to independently solder copper tubes without using nitrogen purge will lead to oxidation of the internal walls of the pipeline. This will cause blockage of the capillary tube and failure of the compressor within several months.
There is also a technique for separating the chambers. On some models, you can physically lower the partition between the refrigerator and freezer compartments by installing an optional evaporator at the bottom. This will turn part of the refrigerator compartment into an additional freezer, but will require the installation of a second thermostat or solenoid valve.
Installation of an additional freezing tray (evorcula)
One of the popular, although controversial with From a guarantee point of view, the method is to install a so-called “evorcula” or an additional aluminum evaporator tray. This device is a coil that is installed inside the chamber (usually from above) and connected to the existing system.
The principle of operation is simple: the refrigerant, passing through an additional circuit, cools a metal plate, which freezes the products lying on or under it. This allows you to create a quick freezing zone or expand the usable area.
However, this method has significant drawbacks. Firstly, the useful volume of the chamber decreases due to the dimensions of the structure itself. Secondly, the normal air circulation is disrupted, which can lead to uneven cooling. Temperature conditions at different points of the chamber it can vary greatly.
- ⚙️ Requires insertion into the main refrigerant circulation circuit.
- 📉 Reduces the overall energy efficiency of the refrigerator.
- 🌡️ May cause local hypothermia of food near the walls.
Installing such an element is justified only if the standard freezer has stopped freezing due to loss of freon, and you want to revive the old refrigerator, sacrificing volume for the sake of function freezing.
Reflashing and setting up electronics
In modern electronically controlled models, it is often possible to change operating modes without physical intervention. Some refrigerators have hidden service menus or the ability to switch operating modes through combinations of buttons on the control panel.
For example, activating the mode Super Freeze (Super Freeze) causes the compressor to work continuously, lowering the temperature in the chamber to -24...-26°C. This does not increase the physical volume, but allows you to quickly freeze a large volume of food, effectively using the available space.
⚠️ Attention: Long-term operation in super freezing mode (more than 24 hours) without loading food can lead to freezing of the air ducts and system breakdown No Frost. Use this mode only when the camera is fully loaded.
In some cases (especially in models for different climate zones), flashing the control module allows you to remove software restrictions on the minimum temperature. This is done through the service port using special software and an adapter.
It is also worth checking the thermostat settings. If it is set to minimum cooling, then the “effective” volume of the chamber is smaller, since the food in the depths may not freeze. Adjusting the setting to lower values (the number is larger) will improve the quality of freezing.
Technical limitations and risks of expansion
When trying to increase the freezer compartment, it is important not to go beyond what is reasonable. The design of a refrigerator is a balanced system where the compressor power, evaporator volume, amount of refrigerant and thermal insulation are strictly calculated by engineers.
An excessive increase in the load on the evaporator (for example, by installing an overly powerful or additional circuit) will lead to liquid freon starting to enter the compressor. This phenomenon is called "hydraulic hammer" and is fatal to the engine.
| Parameter | Normal mode | With aggressive modernization | Risk |
|---|---|---|---|
| Suction pressure | 0.8 - 1.2 bar | Above normal | Compressor overheating |
| Evaporator temperature | -20...-24°C | Below -30°C | Freezing, fan failure |
| Motor current | Nominal | Excess | Combustion windings |
| Cyclicity | Work/Rest | Non-stop | Wear of resource |
Thermal insulation should also be taken into account. The walls of the refrigerator have a certain thickness of polyurethane foam. An attempt to “expand” the chamber at the expense of the internal space (if this is technically possible in your model) will thin the insulation layer, which will lead to a constant flow of heat and condensation on the outer walls.
Alternative solutions: when expansion is not possible
Often attempts to expand the freezer inside an old refrigerator are not economically feasible. The cost of the technician's work, new components and time spent can exceed half the cost of a new unit.
The most reasonable solution in such a situation is to purchase a separate freezer cabinet (chest). Chests are significantly more efficient due to their top loading (cold air does not escape when opened) and thick insulation.
If space allows, installing a second smaller refrigerator, repurposed only for freezing, will radically solve the problem of lack of space. In such a device, you can remove the shelves of the refrigerator compartment and install additional drawers.
- 🏠 A chest freezer saves up to 40% of energy compared to a vertical cabinet.
- 🔄 Repurposing an old refrigerator is cheaper than buying a new large unit.
- 📏 Measure the door opening before purchasing a separate freezer.
It is also worth considering the possibility of replacing the sealing rubber. If it is worn out, the cold goes away and the effective volume decreases. The new rubber will restore the passport characteristics of the chamber.
☑️ Diagnostics before upgrading
FAQ: Frequently asked questions
Can I install an additional evaporator myself?
Technically this is possible, but it requires skills in soldering copper pipes, working with a vacuum sealer and knowledge of the properties of refrigerants. Without special equipment (refueling station, scales, leak detector), the result will be unsatisfactory. In addition, you will lose your warranty.
Will installing a fan inside the chamber help?
Installing an additional fan can improve air circulation and even out the temperature, which will allow food to freeze more evenly. However, this will not increase the physical volume and may increase the noise level.
Why did the freezer become smaller after defrosting?
Most likely, the problem is in the melt water drainage system. If the drain hole is clogged, the water freezes below, forming an ice plug that steals volume. It is necessary to clean the drainage with hot water or a brush.
Is it possible to turn a refrigerator into a freezer?
Fully - no. The thermal insulation of the refrigeration chamber is thinner, and the compressor power and evaporator area are not designed to maintain temperatures below -18°C throughout the entire volume. Food can spoil.
In conclusion, increasing the freezer compartment is a complex task. Start with tidy shelves and a vacuum sealer. If this is not enough, think about buying a separate chest freezer, which will be a better addition to the main refrigerator than risky experiments with its internal structure.