Delivery of new household appliances is always stressful for the owner, associated with the risks of damage to the housing or internal components during movement. However, even with ideal external safety and careful handling by loaders, there is a critical nuance that directly affects the durability of the unit. Many buyers make the mistake of starting refrigeration circuit immediately after unpacking, not taking into account the physical and chemical processes that occurred in the compressor during shaking.
The question of when exactly it is possible to safely connect the device to the electrical network is not just a formality from the instructions, but becomes a guarantee proper operation of the cooling system for many years. If you ignore the time acclimatization and stabilization of technical fluids, you can provoke a serious breakdown that will not be considered a warranty case. In this article we will analyze in detail the time intervals required for different types of equipment.
It is important to understand that manufacturers' recommendations are based on the laws of physics, and not on reinsurance. Refrigerant and compressor oil at rest behaves differently than in dynamics. Let's figure out why rushing in this matter can cost you expensive repairs and how to properly prepare the equipment for the first start.
Physics of the process: why you can’t rush to start
The main reason that requires a time delay before turning on lies in the design compressor, which is the heart of the refrigeration unit. In normal condition, the oil is in the compressor crankcase, providing lubrication to the rubbing parts. During transportation, even in a vertical position, vibrations and shaking cause intensive mixing of oil with refrigerant and its entry into the cooling system circuits, where it should not be.
If you turn on the unit immediately, the oil that gets into heat exchangercan create a so-called oil plug. This prevents the normal circulation of freon and causes the compressor to work overload, trying to push the refrigerant through the clogged system. In the worst case, a water hammer occurs, which can instantly disable an expensive component.
⚠️ Attention: Starting a compressor with oil in the cooling circuit is one of the most common reasons for refusal of warranty service. Service centers can easily determine such a breakdown by the presence of oil in the evaporator.
In addition, it is necessary to take into account the temperature factor. If the equipment was delivered in winter, then even a short stay outside leads to cooling of the internal components. A sharp temperature difference when turned on in a warm room creates condensation on the electrical contacts, which can lead to a short circuit. Therefore, settling time is needed not only to drain the oil, but also to equalize temperatures.
Factors influencing the settling time of equipment
There is no single figure that is suitable for absolutely all situations, since the resting time depends on many variables. First of all, you should consider the type compressor: inverter models may be more sensitive to the condition of the oil than their classic linear counterparts. The duration and intensity of transportation also plays a role.
The second important factor is seasonality and weather conditions. In summer, when the temperature difference between the street and the room is minimal, the main emphasis is on oil drainage. In winter, condensate evaporation also comes to the fore. Ignoring this aspect can lead to failure of the control electronics. thermal stabilization and evaporation of condensate. Ignoring this aspect may result in failure of the control electronics.
The third factor is the design features of a particular model. Some manufacturers, such as Liebherr or Siemens, may indicate their own recommendations in the technical documentation, which may differ from generally accepted standards. It is always worth looking into the product passport, as specific features of the refrigeration system may be taken into account there. refrigeration systems.
Time intervals: how long you need to wait
In order to systematize the information and help you determine the exact time, we have compiled a table that takes into account various delivery scenarios. These data are averaged and are suitable for most modern models of household refrigerators.
| Transportation scenario | Season | Recommended standing time | Cause |
|---|---|---|---|
| Vertical, without shaking | Summer | 2-4 hours | Oil drainage |
| Vertical, strong vibration | Summer | 6-8 hours | Emulsion stabilization |
| Vertical, any road | Winter | 12-24 hours | Condensate evaporation |
| Short-term tilt | Any | 4-6 hours | Return of oil to the crankcase |
As can be seen from the data, winter delivery takes much longer. This is due not only to the oil, but also to the risk of ice plugs forming in the narrow channels of the capillary tube if the moisture inside the system freezes during the first start-up. In the summer, processes go faster, but even here you should not neglect the minimum threshold of a couple of hours.
If you do not know exactly how your refrigerator was transported, or the loaders had doubts about maintaining the vertical, it is better to play it safe. Leave the device alone 24 hours. This is the maximum period after which you can be sure of the complete restoration of all system parameters, and it is guaranteed to be safe for any model.
☑️ Ready for the first start
Proper preparation for first use
Before plugging the cord into the outlet, you need to perform a number of preparatory steps. First, make sure that the shipping film, tape, and foam retainers are completely removed from the case. Pay special attention to the inside: all shelves, drawers and containers must be installed in their places to ensure proper air circulation.
Next, you should conduct a visual inspection of the rear wall for damage to the radiator grille. If everything is in order, wipe the internal surfaces with a damp cloth with the addition of a weak solution of soda or a special product for cleaning household appliances. This will help remove factory dust and foreign odors that may be present in new plastic.
⚠️ Attention: Do not use aggressive chemicals, abrasive powders or hot water to wash the internal chambers, as this can damage the coating and deform the plastic elements.
After When cleaning wet, be sure to wipe the surfaces dry and leave the doors open for another 30-40 minutes for final ventilation. Only after this can you connect the device to the network. It is recommended to use a separate one socket with grounding, avoiding the use of extension cords or tees, which can cause overheating of the wiring.
What to do if you hear a lot of noise after starting?
If the noise does not stop after After 15-20 minutes of work, check that the shipping bolts have been removed (if your model has them) and that the refrigerator is level. Also make sure that the pipes at the back do not touch the wall.
First start-up and operation control
After connecting to the network, do not rush to load products. An empty refrigerator should run idle for at least 2-3 hours, or better yet, until the compressor automatically turns off. This is necessary for the system to reach the required temperature and the thermostat recorded the achievement of the set parameters.
During the initial cooling process, listen to the operation of the unit. Let's assume a slight hum, gurgling of the refrigerant in the pipes and periodic clicks of the thermostat. However, extraneous knocking, grinding noises, or continuous operation of the engine without stopping may indicate problems. In such cases, it is better to immediately contact a service center.
When the refrigerator turns off for the first time (or goes into temperature maintenance mode, if you have a model with No Frost and an inverter motor), you can start loading. Do this gradually, without filling the chambers with room temperature products in large volumes, so as not to create an extreme load on the compressor.
Frequent errors when installing refrigeration equipment
One of The most common mistake is to install the refrigerator close to the wall or in a niche without gaps. For normal operation, the system requires free inflow and outflow of air around capacitor. The minimum distance to the back wall should be 5-7 cm, and at least 2-3 cm on the sides.
Another mistake is ignoring the adjustment of the support legs. If the refrigerator is not level, the doors may not fit tightly to the body, which leads to ice freezing and increased load on the compressor. Use a spirit level and adjustable screws on the bottom of the cabinet for leveling.
Also, users often forget that they should not place the refrigerator near heat sources such as radiators, ovens, or in direct sunlight. This forces the cooling system to work in enhanced mode, reducing engine life and increasing energy consumption.
Is it possible to transport a refrigerator lying down if there is no other way out?
Transportation in a horizontal position is extremely undesirable, but is acceptable for short distances subject to strict rules. In this case, the settling time before switching on should be increased to at least 12-24 hours so that the oil is guaranteed to flow back into the compressor. The risk of damage to the tubes and bending of the case increases significantly.
What to do if the refrigerator was turned on immediately after delivery?
If little time has passed since the moment it was turned on (less than an hour), it is best to immediately unplug the device from the outlet and let it sit for the prescribed time. If it has already worked for several hours without visible problems, most likely you are lucky, but you need to monitor its operation in the first days especially carefully.
Do you need to defrost a new refrigerator before use?
Modern models with the system No Frost do not require defrosting. However, if you bought a refrigerator with a drip system or manual defrosting, which has been in storage for a long time, it is worth defrosting and washing it before turning it on for the first time to remove possible dust and odors.
Why does the refrigerator not turn off for a long time after the first start?
When starting for the first time, an empty refrigerator takes a long time to cool the entire internal volume and the walls of the chambers to set temperature. This is normal, the cycle can last up to 10-12 hours. If the motor hums for days and does not get cold, this is a sign of a malfunction or a freon leak.