One can understand it perhaps just so, accept however not at all. Let's assume there is a Cool Liner parking in the middle of a group of truck drivers who want to rest easy at night. This then easily goes wrong and can result in the cooling unit being switched off.

We have not now examined the possibilities of having the condition for this in the tractor. We have not now examined the possibilities of having the prerequisite for this in the tractor truck. That would not only be better for the printer, but perhaps, together with locking access to the cooling unit, could prevent such things.

However, the transfer from the semi-trailer to the tractor unit is likely to cause additional costs. The method of grouping such vehicles e.g. in the truck stop on separate parking spaces seems cheaper. Would also grab the problem at the root.

The need to provide such vehicles with additional mains power if they do not even have a diesel engine on board already appears on the horizon. As already mentioned, it doesn't get much quieter with the units presented so far.

Yes, we ended up in practice with tips that are of course perhaps even more important for those who suffer from it on a daily basis than the theory of cooling units. This includes, for example, the topic of 'preliminary air conditioning', a comfort topic for normal drivers and a must for the transport of refrigerated goods.

However, preliminary air conditioning does not always have to mean 'cooler'. You may also be asked to show up at the load point with a refrigerated box at 20°C. It's all about not letting the difference between the temperature of the cargo and the cargo space become too great. For those affected, this can mean getting up an hour earlier.

Of course, the blessing of electronics is not taken into account, namely the possible presetting, which has long been common in normal cars. Once the loading is done and the temperature of the load is still quite high, you should not set the target value directly.

Such systems have a certain hysteresis. These are certain delays in the system. For example, a very powerful cooling system may not be shut down in time and the temperature may fall below the set temperature. Meat and vegetables may not like to freeze at all.

Another problem for drivers of refrigerated trucks is water. You can keep the air inside no matter how dry, with every opening moisture gets in, not just possibly through the cargo. Those are indeed huge dimensions, the openings on a refrigerated box. And then the people and machines going in and out.

So if you happen to see a refrigerated truck somewhere with open doors, the rear lowered and the truck lifted, then an attempt is made here to thaw ice and to transport all the water out of the interior. Of course, this is most likely to happen at loading stations, but it also takes a good hour.

The operation of a Thermoking, for example, is also not very easy, as there is worked with usually a tolerance of 3°C. If clients, e.g. for the transport of medicines, require exact maintenance of a temperature, the 'continuous operation' setting should be selected. Temperatures can be adjusted from -29°C to +27°C.

The most important thing about the controller are of course the alarms and corresponding error codes. Added to this are the operating hours, on which calls for service are based. 'Data logger' means the recording of all measured values, e.g. the course of temperature and humidity, which can be called up amongst others at the USB port in the printer box.