Moving to a new apartment or simply replacing old household appliances with a more modern model almost always involves logistical difficulties. The item in the house invariably remains the largest and most difficult to transport. refrigeration unit. Owners often wonder whether it is permissible to transport a refrigerator lying on its side, since the dimensions of doorways and staircases do not always allow carrying the device vertically.
Modern technology is becoming more and more technologically advanced, but the physical laws and design features of the compressor remain the same. Improper transportation can cause serious damage that is not always immediately visible. In this article we will analyze in detail the physical aspects of the compressor's operation, the risks of tilting and a step-by-step algorithm of actions that will help deliver the equipment intact.
The main problem lies not in the housing, but in the internal structure of the motor. The compressor, which is the heart of the system, is suspended on springs inside a metal casing and filled with oil. If there is sudden tilting or shaking, this oil may leak out of the working chamber into the refrigerant circuit. If you start the unit immediately after such a trip, the compressor will run “dry,” which will lead to its rapid overheating and failure.
Physics of the process: why vertical is preferable
The ideal scenario for any refrigeration equipment is transportation exclusively in a vertical position. In this case, all internal components are in normal operation, and the oil remains in the compressor crankcase, where it should be. However, reality dictates its conditions: the height of a standard refrigerator often exceeds 180 cm, and freight elevators or doorways of old houses can be much narrower.
When the device is tilted, the oil, under the influence of gravity, tends to flow into the evaporator or condenser tubes. Hydraulic hammer is what repairmen fear most. It occurs when liquid oil and refrigerant enter the compressor cylinder during startup. Since the liquid is not compressed like gas, the piston group experiences an enormous load, leading to valve failure or motor jamming.
Technical details of the compressor
Inside the sealed compressor casing there is an electric motor and a pumping part. They are suspended on 3-4 powerful springs that dampen vibrations. At a strong tilt (more than 40 degrees), the weight of the motor shifts and the springs can become deformed or even burst, which will lead to a lot of noise during future operation.
There is a common misconception that modern models are free of this problem due to the use of inverter motors. Indeed, inverter compressors they are structurally different from classic piston engines, but the risk of oil getting into the circuit does not go away. Therefore, the rule of caution applies to all types of equipment, be it an old Soviet unit or the latest model with the No Frost system.
Preparing the refrigerator for transportation
Before thinking about how to put the refrigerator down, it is necessary to carry out thorough preparation. Ignoring this step can negate all efforts for careful transportation. The first step should be complete defrosting. Even if there is no visible ice in the chamber, moisture is contained in drainage systems and hidden cavities.
Unplug the device at least 24 hours before transportation. This time is necessary for all condensate to turn into water and evaporate or be removed. If you start transportation with moisture inside, when tilted, it is guaranteed to get onto the electrical contacts or into the thermal insulation layer, which can lead to a short circuit or the appearance of mold.
- 🧊 Completely defrost the chambers and wipe them dry with a soft rag.
- 🔌 Disconnect all removable elements: shelves, drawers, egg trays and trays.
- 🚪 Secure the doors so that they do not swing open in transit and damage the hinges.
- 📦 Pack the removable parts separately in boxes with soft filling.
Pay special attention to fixing the doors. It is best to use masking tape or special stretch film. Regular stationery tape can leave traces of glue on a glossy surface, which will then be difficult to remove. If you have a Side-by-Side model, then you need to fix both doors separately so as not to damage the central partition.
☑️ Checklist for preparation for transportation
Rules for transportation on the side: step-by-step instructions
If the option of vertical transportation is excluded, you have to lay the equipment on its side. It is important to follow strict rules here to minimize risks. First, you need to determine which side is best to place the unit on. Typically, manufacturers recommend placing the refrigerator so that the tubes coming out of the compressor are facing up.
In practice, this means that the device is placed on the side opposite to the location of the compressor (if it is visible) or simply on the left side (if you look at the closed doors), since in most models the oil in this position flows into the compressor compartment, and not from it. However, this is not a universal rule, and it is better to check the instructions for the specific model Bosch, LG or Indesit.
The substrate for the equipment should be soft and even. The original cardboard box with foam inserts is ideal. If there is no packaging, use a thick blanket, mattress or layer of polyethylene foam. This will protect the body from scratches and soften impacts from road unevenness.
⚠️ Attention: Never place the refrigerator on the door or on the rear grille (radiator). The grille may become deformed and damage the freon tubes, and the door may come off under the weight of the housing.
When loading into a vehicle, avoid sudden jerks. The equipment must be raised and lowered smoothly. In the back of a truck or gazelle, the unit must be securely secured with belts or stops to prevent movement while driving. Even a slight shift in the center of gravity when turning can lead to the fall of a multi-ton load.
Table of risks for various methods of transportation
For clarity, let’s compare the main methods of moving equipment and the likely consequences. This will help you make an informed decision whether it is worth saving on the services of loaders with a freight elevator or taking risks by transporting the unit in a passenger car.
| Method of transportation | Inclination angle | Risk of damage to the compressor | Risk of damage to the housing |
|---|---|---|---|
| Vertical | 0 degrees | Minimum | Low (when fixed) |
| On the side (correct) | 90 degrees | Medium (requires settling) | Medium (needs a substrate) |
| On the door | 90 degrees | High (hits the floor) | Critical (deformation) |
| On the back wall | 90 degrees | High (radiator collapse) | High (punching) |
Like As can be seen from the table, transportation on the door or back wall carries critical risks. Deformation of the radiator on the rear wall leads to depressurization of the system and leakage freon. Repairs in this case will be expensive and will require calling a technician with a vacuum pump and a charging station.
It is also worth considering the condition of the roads. If you have to drive on a road with good coverage, the risks are lower. However, urban conditions with frequent potholes and speed bumps create constant vibration and shock loads. In such conditions, even a properly laid refrigerator can suffer if it is not secured.
Dwelling time: when can you turn it on?
The most important stage after delivery is the time delay before the first turn on. Many people make the mistake of starting up the appliances as soon as they bring them into the kitchen. This is absolutely impossible to do. The oil that has entered the cooling circuit needs time to drain back into the compressor crankcase under the influence of gravity.
The settling time directly depends on how exactly and at what temperature the transportation took place. If the refrigerator was transported in winter at subzero temperatures, the process of spreading the oil will take longer, since in the cold it becomes more viscous.
- 🕒 When transported vertically: 2-4 hours is enough.
- 🕒 When transported on its side in the summer: at least 8-12 hours.
- 🕒 When transported on its side in winter: at least 24 hours.
No need to rush. It is better to wait a day than to change the compressor after a month of operation. If you turn on the device and it starts to work with an unusually loud hum, or the chambers are not cool, and the motor is constantly humming, turn it off immediately. These are signs that the oil has not yet returned to its place or a hydraulic shock has occurred.
⚠️ Attention: If, after transportation and long-term storage, the refrigerator does not cool, but the compressor is working, the freon may have gone into oil foam. Let the device stand in the switched off state for another 1-2 days.
Specifics of transporting No Frost refrigerators
Equipment with the system No Frost (without frost) has a more complex design. It uses forced air circulation and additional fans. Internal evaporators are often located hidden behind plastic panels. This makes them more sensitive to shock and vibration when transported lying down.
Plastic fan mounting elements may crack from vibration if the unit is lying on its side. In addition, the No Frost system has more channels for condensate drainage, and the risk of them becoming clogged with oil when tilted is higher. Therefore, for such models the rule “vertical is better” is doubly relevant.
When preparing the No Frost model, be sure to check and blow out (if possible) the drainage hole. When tilted, water accumulated there can flow into the control unit, which is often located at the bottom of the housing. Repairing electronics is much more expensive than replacing the seal.
What's inside No Frost?
Unlike the drip system, here the evaporator is hidden in the back wall. The air is driven by a fan. When transported on its side, the fan blades may shift and begin to touch the housing, creating noise.
Common mistakes when moving on your own
By analyzing the experience of service centers, we can identify typical mistakes that owners make. The first and most common is an attempt to hold the door with your hands when climbing stairs. This leads to the fact that the person carrying the bottom is suddenly hit by a door swinging open, which can result in injury or the fall of the equipment.
The second mistake is transportation in a passenger car without proper protection. Even if you put the refrigerator in the back seat, it will slide. Sharp braking leads to impacts with the front seats or the dashboard. At best, the interior of the car will suffer, at worst, the condenser tube will break.
The third mistake is ignoring weather conditions. Bringing cold equipment into a warm room causes condensation to form not only inside, but also outside, on electrical circuit boards. Therefore, if you transported equipment in winter, let it stand in the corridor or entrance (if it is not cold there) or at least in the vestibule for several hours before unpacking.
⚠️ Attention: Do not use tape with aggressive glue on glossy surfaces to secure the doors. It can enter into a chemical reaction with plastic and leave indelible marks.
FAQ: Frequently asked questions
Is it possible to transport a refrigerator in cold weather at a temperature of -20°C?
It is possible, but with caution. The main danger is not the cold, but the sharp temperature change when brought into the heat. The oil thickens and the plastic becomes brittle. After bringing it into a warm room, you cannot turn on the device for at least 24 hours, or better yet, two days, so that the temperature of all components becomes equal to room temperature and the condensation evaporates.
What to do if, after transportation, the refrigerator hums louder than usual?
First, make sure that a sufficient period of settling has passed. If time has passed and the hum remains, check whether the tubes are touching the housing or each other (sometimes they move when shaking). If the compressor itself is humming and the sound is metallic, the engine mount is probably damaged or wear has occurred due to operation without oil.
Do you need to remove the doors completely or is it enough to seal them?
Removing the doors completely when transporting on their side is not recommended, as this violates the rigidity of the body structure and it can “twist”. The doors must be closed tightly and secured with several turns of stretch film or masking tape. They should only be removed if they interfere with passage through the doorway.
Is tilting dangerous for an inverter compressor?
Inverter compressors (for example, Digital Inverter) are less sensitive to voltage changes, but their mechanical part is similar to a conventional one. Oil may also leak into the system. In addition, the inverter electronics are afraid of moisture, so defrosting and drying are even more important for them than for older models.