Moving to a new apartment or buying new household appliances is always stressful and has many organizational issues. Particularly acute is the problem of transporting large items, such as refrigeration chambers. A situation often arises when the dimensions of the doorway or truck body do not allow the unit to be transported in a vertical position. In this case, owners are forced to place the equipment on its side, risking damage to internal components.
The main danger during horizontal transportation lies in the compressor. It is this that is the heart of the cooling system, and it oil system is extremely sensitive to changes in position. If you ignore the manufacturers' technical recommendations, you may encounter serious damage immediately after the first turn on. Understanding the physical processes occurring inside the unit will help maintain the warranty and extend the service life of the device.
In this article we will examine in detail why you cannot turn on the device immediately, how long you need to wait and what nuances exist for different models. You will learn how to minimize risks and properly prepare equipment for the first launch after a difficult road. Following simple safety rules will save you from costly repairs.
⚠️ Attention: Warranty information may vary between brands. Some manufacturers (eg Liebherr or Bosch) may void the warranty if signs of horizontal transport are found, even if the device is working properly. Always check the official contract or the manufacturer’s website before loading.
Risks of horizontal transportation
The main problem when transporting a refrigerator in the “lying” position is related to the design compressor. Inside this unit there is a special oil that lubricates the rubbing parts and ensures the tightness of the piston group. In a standard vertical position, the oil is located at the bottom of the compressor housing, where it should work.
When you place the refrigerator on its side, under the influence of gravity, oil begins to flow into the circuits of the cooling system. It may get into evaporator or the capacitor, where it does not belong. If you turn on the unit immediately, the compressor will try to pump oil through the narrow capillary tubes. This creates excess pressure, which can lead to rupture of tubes or failure of the motor itself.
In addition, there is a risk of mechanical damage. The heavy compressor is suspended on shock absorber springs inside the casing. When shaking in a horizontal position, it may hit the walls of the casing, which will lead to a break pipelines or damage to the electrical part. It is also possible that the internal shelves may shift and the plastic will deform.
Physics of the process: why the oil goes into the system
To understand how long it takes to turn on the refrigerator, you need to understand how the oil comes back. After you have placed the unit vertically, the reverse process begins. The oil that gets into the heat exchangers must slowly drain down into the compressor crankcase.
The speed of this process depends on the viscosity of the oil and the ambient temperature. During the cold season, the oil becomes thicker and takes longer to drain. If the room is cool, the process may take longer. It is important to let the equipment rest without jerking or tilting it again.
An attempt to start the compressor before the oil has completely returned will result in the so-called “hydraulic hammer”. Liquid, unlike gas, is not compressible. If there is a lot of oil in the cylinder, the piston will not be able to make a full stroke, which will lead to jamming of the engine or damage to the valve group. Compressor repair often economically unfeasible.
What happens if you start the refrigerator ahead of time?
If you turn on the unit too much early, you may hear a loud knocking or humming sound. The compressor may try to start, but will immediately blow the automatic fuse. In the worst case, the electric motor winding will burn out, and the device will require replacement of the compressor, which is up to 70% of the cost of a new refrigerator.
Dependence of settling time on the type of refrigerant
Modern refrigerators operate on different types of refrigerants, and this directly affects transportation requirements. Older models running on R12 or R22 freon were often more “omnivorous” to transportation conditions, although their manufacturers also recommended vertical. However, modern environmentally friendly gases such as R600a (isobutane)require stricter compliance with regulations.
Isobutane is explosive and operates in a system with less oil but higher heat transfer efficiency. Oil getting into the circuit with R600a can upset the balance of the system and lead to incorrect operation of the thermostat. In addition, R600a systems often use smaller compressors that are sensitive to lubrication levels.
The following table shows the approximate settling time depending on the type of refrigerant and shipping conditions. Remember that these are average data, and the manufacturer can make adjustments.
| Refrigerant type | Transport position | Minimum settling time | Recommended time |
|---|---|---|---|
| R12 / R134a | On on the side (up to 30 min) | 2-4 hours | 6-8 hours |
| R600a (Isobutane) | On the side (up to 20 min) | 4-6 hours | 12-24 hours |
| No Frost (any gas) | On the side (not recommended) | 6-8 hours | 24 hours |
| Any type | Vertical (with an inclination >40°) | 1-2 hours | 4 hours |
How long should the refrigerator stand?
The gold standard, which is called by many craftsmen and manufacturers, is 24 hours. This period ensures that the oil is completely returned to the compressor and the refrigerant is distributed evenly throughout the system. However, in real life, not everyone is ready to wait a day, especially if the refrigerator is needed “yesterday.”
The minimum permissible time, below which it is strictly forbidden to fall, is 4-6 hours. This time is necessary for the initial drainage of the bulk of the oil. If you transported equipment in the summer and in a warm room, 4 hours may be enough. In winter, when the refrigerator could freeze, the time needs to be increased.
It is important to take into account the duration of the trip itself. If you took the refrigerator to the dacha for 15 minutes, the risks are minimal. If it was shaking for many hours on bad roads, the oil could foam heavily and splash throughout the system. In this case, even 12 hours may not be enough to completely restore the structure of the lubricant.
☑️ Ready to turn on
⚠️ Attention: Never speed up the oil drainage process by tilting the refrigerator in different directions! This will only make the situation worse, driving the oil to the far corners of the evaporator. The equipment must stand still.
Seasonal features: transportation in winter
Transportation of household appliances in the winter season is associated with additional risks. The main problem is condensation and changes in the physical properties of materials. When you bring a cold refrigerator from the cold into a warm apartment, moisture instantly forms on the internal and external surfaces.
Water inside electrical circuits can cause a short circuit when first turned on. Therefore, if the refrigerator was in the cold, it needs to be kept indoors for at least 3-4 hours just to acclimatize and dry out the condensation, even if you did not put it on its side. Only after this can you think about starting.
In addition, in the cold the plastic becomes brittle. Sudden movements or impacts during unloading may cause cracks in the plastic parts of the interior or body. Door seals also lose their elasticity in the cold, so you should not try to close the door tightly right away - let the rubber warm up.
Instructions: how to turn it on correctly after transportation
The required period has passed, the refrigerator is standing upright, the room is warm. What to do next? You can't just plug a plug into a socket and expect a miracle. There is a correct algorithm of actions that will help check the operation of the system without load.
First, visually inspect the unit for damage, dents or oil leaks. Check if the refrigerator is level and adjust the legs if necessary. Make sure that all shipping bolts and fasteners (if they were on the compressor) have been removed.
Plug in the refrigerator, but do not load it with food yet. Let it run idle for 1-2 hours. During this time, it should gain temperature and automatically turn off. If the compressor hums smoothly and the cold inside has appeared, you can gradually load the food.
- Make sure that the refrigerator is on a flat surface.
- Check the integrity of the power cord and plug.
- Plug the device into an outlet (preferably with grounding).
- Set the average temperature (for example, +4°C).
- After 2 hours, check the presence of cold and the operation of the automation.
Frequent installation errors
Many users, wanting to start the cooling process as quickly as possible, make typical mistakes. One of the most common is loading a large amount of warm food immediately after switching on. The compressor is forced to work hard to cool the entire volume, which is critical in the first hours of operation.
Another mistake is installing the refrigerator close to the wall. For normal operation, the heat removal system (condenser) requires free air flow. If there is no gap of 5-10 cm at the back or sides, the refrigerator will overheat, which is especially dangerous after long-term transportation.
The tilt level is also often ignored. If the floor is uneven and the refrigerator is skewed, the oil in the compressor may be unevenly distributed even when operating. This leads to increased noise and vibration. Use a building level to check.
Is it possible to transport a refrigerator lying down over a long distance?
Transporting a refrigerator lying down over long distances (more than 50 km) is highly not recommended. Prolonged vibration and shaking significantly increase the risk of oil entering the system and mechanical damage. If vertical transportation is not possible, it is better to consider the option of disassembling or calling specialized transport with a lift.
What to do if the refrigerator does not freeze after turning it on?
If the recommended standing time has passed and there is no cold, do not panic. Let the device operate for a few more hours. If the result is zero, check if the compressor is working (listen to the sound). If the motor hums, but there is no cold, the capillary may be clogged with oil or a freon leak. In this case, you need to call a technician.
Does the refrigerator model affect the standing time?
Yes, it does. Single-compressor models are usually less demanding than dual-compressor systems. Refrigerators with a No Frost system have a more complex system of air circulation and condensate removal, so for them it is better to increase the idle time to the maximum (24 hours) to avoid problems with sensors.
Is it necessary to defrost the refrigerator before transportation?
Required. Transporting a refrigerator with an ice “coat” inside is unacceptable. Ice can damage the interior shelves and plastic parts when shaken. In addition, melted water can get on electrical contacts. Defrost, wash and dry the camera at least 24 hours before moving.
Is transportation on the roof of a car dangerous?
Transportation on the roof is a high risk. In addition to problems with horizontal position, the factor of airflow, dust and moisture is added. If there is no other way out, hermetically pack the equipment in polyethylene, secure it with soft slings (so as not to push the body) and move at minimum speed. In this case, the dwell time should be maximum.