Moving or buying a new household appliance always raises many questions, but the most critical of them is the wait before turning it on for the first time. Many owners make the mistake of immediately plugging the cord into a socket without understanding the physical processes occurring inside the system. Settling time necessary for stabilizing technical fluids and refrigerants, which directly affects the service life of the equipment.
Ignoring this rule can lead to failure compressor, which is the heart of the refrigeration unit. Depending on the type of transportation, the outside temperature and the design of the unit itself, this period can vary from a couple of hours to a day. Let's figure out why haste is disastrous here and how to properly prepare equipment for work.
The physics of the process is simple: during transportation, especially if the refrigerator was tilted or shaken, oil from the compressor could get into the cooling system circuits. If you start the engine right away, it will run “dry” or try to push through the hydraulic plug from the oil, which will lead to jamming of the piston group. Refrigerant It should also be evenly distributed throughout the system, and the condensate formed on the internal parts due to temperature changes should completely evaporate.
⚠️ Attention: An attempt to turn on the unit immediately after delivery in winter from frost can cause thermal shock to the metal and depressurization of solder joints.
Factors influencing the waiting time
There is no single figure that is suitable for absolutely all cases, since the acclimatization process is influenced by many variables. The main factor always remains temperature conditionsin which the transportation took place. If you transported equipment in a warm body in the summer, the processes will go faster than during winter delivery.
The second important aspect is the position of the body during movement. Vertical transportation with minimal inclination requires less recovery time than horizontal transportation, when oil is guaranteed to flow into the evaporator and discharge tube. Also plays a role type of compressor: inverter models can be more sensitive to changes than classic linear ones.
Air humidity also plays a role: in damp weather, condensation on the electronic control boards may take longer to dry. Therefore, even if the recommended time has passed, it is worth visually inspecting the back wall and electrical compartment for the presence of drops of moisture before connecting to the network.
The influence of the season: winter versus summer
Seasonality is the main enemy or friend when installing a refrigerator. In winter, the risk of damage is greatest due to the low ambient temperature. The oil in the compressor thickens, and if it heats up suddenly after switching on, it may not have time to return to the crankcase, leaving the rubbing parts without lubrication. In addition, cold air contains less moisture, but when a warm device is brought into the room, condensation falls out In the summer the situation is simpler, but here the overheating factor comes into force. If the refrigerator has been left in the sun or in a hot van for a long time, the plastic and seals need time to return to normal temperature. A sharp start of the compressor in such conditions will create excess pressure in the system..
In summer the situation is simpler, but here the overheating factor comes into force. If the refrigerator has been left in the sun or in a hot van for a long time, the plastic and seals need time to return to normal temperature. A sudden start of the compressor under such conditions will create excess pressure in the system.
Danger of winter switching on
What will happen if you turn on the refrigerator right away in winter?: If you turn on a unit that has just been brought in from the cold, the compressor oil, which has thickened in the cold, will not be able to circulate normally. This will cause the engine to run without sufficient lubrication, causing wear on the piston group. It is also possible for ice plugs to form in the capillary tube, which will lead to a rupture of the circuit.
It is important to understand the difference between the time required to warm the body and the time for stabilization of internal processes. Even if the outside of the refrigerator is already warm, inside, deep in the thermal insulation and in the compressor, the temperature could remain low for a long time. Thermoregulator may read the readings incorrectly until the sensors are fully acclimatized.
⚠️ Attention: Technical characteristics of oils and refrigerants change manufacturers. Always check the recommendations in the data sheet of a specific model, since modern synthetic oils may have different temperature requirements.
How long to wait after vertical transportation
Vertical transportation is considered the most gentle option, since the oil remains mainly in the compressor crankcase. In this case, the main task is to evaporate the condensate and equalize the temperature of the electronics. Usually this requires minimal time, but it cannot be neglected.
If transportation was carried out in the warm season and without strong shaking, it is enough to let the device stand for 2-4 hours. This time is enough for the oil to settle, which could splash up the tubes during vibration, and for the moisture to evaporate. For modern models with inverter engines manufacturers often indicate a minimum threshold of 2 hours.
However, if the road was long and bumpy, it is better to increase the waiting time to 6-8 hours. The vibration could cause microscopic oil to splash around the system, and it takes time for it to drain back under the influence of gravity. You should not risk expensive equipment for the sake of a few hours.
How long to wait after horizontal transportation
Transportation "lying down" is always a risk, and the settling time here should be maximum. In a horizontal position, oil flows freely from the compressor into the evaporator and other parts of the circuit. Starting the engine in this condition is almost guaranteed to result in water hammer or running without lubrication.
The minimum waiting time after horizontal transportation is 12 hours, but experts recommend waiting 24 hours. This ensures that even viscous oil flows completely back into the compressor. The longer the device stays in a vertical position, the higher the chances of a long life of the compressor. If the refrigerator has been lying on its side for a long time (for example, when stored in a store warehouse), the waiting time should be increased. Also, after installation, be sure to check for oil leaks around the compressor, which may indicate a leak or excess lubrication in the system. compressor.
If the refrigerator has been lying on its side for a long time (for example, when stored in a store warehouse), the waiting time should be increased. Also, after installation, be sure to check for oil leaks around the compressor, which may indicate a leak or excess lubrication in the system.
| Transportation conditions | Season | Recommended settling time | Risk breakdowns |
|---|---|---|---|
| Vertical | Summer | 2-4 hours | Low |
| Vertical | Winter | 6-8 hours | Average |
| Horizontal | Summer | 12-18 hours | High |
| Horizontal | Winter | 24 hours | Critical |
Nuances for different types of compressors
Technologies do not stand still, and modern refrigerators can differ significantly in internal filling. Classic linear compressors are more resistant to improper operation, but they also do not like oil starvation. The standard rules described above apply to them.
Inverter compressors, which operate constantly, changing only the power, are more sensitive to the quality of the lubricant and the cleanliness of the freon line. The presence of oil in the circuit can disrupt the operation of valves and pressure sensors. For such models, for example Liebherr or Bosch with an inverter, it is recommended to strictly maintain the maximum standstill time.
☑️ Check before turning on
Two-compressor systems require special attention, since oil can flow from one circuit to another or create a pressure imbalance. If you have a complex model with several cooling zones, do not save time by waiting - 24 hours will be the safest bet.
⚠️ Attention: Some manufacturers use synthetic oils in compressors, which can be more fluid or, conversely, more viscous at low temperatures. Study the technical data sheet of your device.
Algorithm of actions after the time has expired
When the allotted time has passed, do not rush to immediately load the products. First you need to carry out a visual inspection and preparation. Make sure the refrigerator is level, use a spirit level to check it is level. The legs should be adjusted so that the doors close by themselves when slightly opened.
Next, wipe the internal chambers with a damp cloth with the addition of soda or a special refrigerator cleaner. This will remove factory smell and dust. After this, leave the doors open for another 30-60 minutes for final ventilation.
It is better to turn it on for the first time without load. Leave the chambers empty and let the unit run for 2-3 hours until it reaches operating temperature. Only after the thermostat turns off the compressor for the first time can you load food. This will allow the system to stabilize without unnecessary load.
Frequent errors during the first start
One of the most A common mistake is to install the refrigerator close to the wall. For normal air circulation around the condenser (black grille at the back), a gap of at least 5-10 cm is required. Violation of this rule will lead to overheating and a reduction in the life of the motor.
Another mistake is ignoring the smell of plastic. A new refrigerator may smell, and some users try to immediately wash it with aggressive chemicals. This should not be done; it is better to let the device work with an open box of soda inside, which will absorb odors naturally.
They also often forget to remove the transport locks from the internal shelves or forget to remove the tape from the drawers. This may damage the glass or plastic the first time you open the door. Carefully inspect all corners and fastenings.
The myth of instant cooling
Many people think that if the refrigerator is humming, it is already freezing. In fact, it can take up to 12 hours to get up to speed, especially in hot weather. Do not load warm food into an empty refrigerator, this will create a peak load.
Questions and answers (FAQ)
Is it possible to transport the refrigerator with it on?
No, absolutely not. During operation, the compressor is mounted on springs and vibrates. During transportation, this will lead to broken tubes and damage to the motor mount. You can only transport a unit that is turned off and defrosted.
What to do if the refrigerator was turned on immediately after transportation?
If you turned it on and it works fine, you are in luck. But if there is a strong noise, knocking or lack of cold, immediately turn off the device from the network. Let it sit upright for at least 24 hours to drain the oil and try turning it on again. If the problem persists, call a technician.
Do you need to defrost a new refrigerator before turning it on for the first time?
New refrigerators, as a rule, do not require defrosting, since they are new. However, washing them inside before use is imperative for hygiene. Defrosting is required only if the refrigerator was used and was transported with ice residue.
Is it possible to place the refrigerator on the balcony?
Only if the balcony is glazed and insulated. Operation at temperatures below +5°C or above +35°C (indicated in the passport, may differ) is prohibited. The oil thickens in the cold and boils in the heat, which damages the compressor.
Why does the refrigerator make noise after transportation?
A slight hum is normal. But if you hear clanging, knocking or vibration of the case, check whether the shipping bolts have been removed (if any), whether the unit is level and whether the tubes from behind each other or the cabinet wall are not touching.