Defa (pre-heater): installation and reviews

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2018-03-20 07:56:13

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With the problems of starting a car engine probably ran into each driver living in a cold region of the country. The bitter cold can lead to temporary failure of the battery pack and powertrain, and could result in negative consequences in the form of destruction of individual elements. To prevent this from occurring the help of different tools, including a lot of folk methods. However, experts still recommend the use of pre-heater of the engine, which with proper installation will not cause the underhood stuffing harm and with it will relieve the motorist from problems with the activation of the power unit. On the market of such systems are provided in different versions, many of which are homemade. For this reason, it is recommended to turn to trusted manufacturers, among which occupies a special place company Defa.

defa pre-heater

General information about pre-arrangements Defa

Until recently, the system pre-heating was considered to be a dubious means of dealing with the freezing of the power plant along with fuel additives that increase the power of the car. The Norwegian developers of the company Defa was able to raise to a qualitatively new level of such a device, confirming their efficacy and safety. The brand today produces compact, clean and functional mechanisms which are suitable for different models. Electric preheaters 220V also have a unique technology Mini Plug, thanks to which there is a reliable connection of the device with the power supply. System connectors, some modifications are implemented on the basis of armoured cables for power grids in 220/230V. In addition to mechanical and thermal protection, connection hardware also gets waterproof shell. The user just needs to correctly perform installation according to one of the proposed configurations.

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Varieties of pre-heaters

pre-start engine heater

Devices are divided into two main groups – liquid and electric. They differ according to the method of supply. Fluid heaters run on gasoline or diesel, so the mechanism provides for a special combustion chamber. These units have a relatively impressive dimensions compared to the electric counterparts, but to their indisputable advantages are full autonomy. For such a device does not require wiring, therefore installation work is facilitated. In turn, preheaters 220V can work in conjunction with the rechargeable battery pack or via the cigarette lighter. That is, in any case, the user needs to insure against freezing of the battery pack, otherwise the cigarette lighter will not work.

Preparation

At the time of the mechanical installation, the owner must solve two problems. First, create a hole in the pipe system of the cooling, and secondly, to mount the socket through which to connect electric pre-heater to a power source. As for the technical openings for device integration, it should be formed with a special tool in the form of a metal Carver. It is important to note that some circuits already have holes with plugs – even if they do not match the dimensions of the heater, it makes sense to test the connectivity through adapters and connectors. Before drilling you should drain the antifreeze and other technical fluids and oils that can circulate in the working line.

installation of pre-heater

Now you can go to the outlet. As noted above, the company Defa in the new device uses a Mini Plug devices. To install such a socket, you must perform a small hole in the front bumper, which is provided with side grid. However, the installation of pre-heater with a separate outlet could be performed. But the direct connection of the device to the battery should be avoided, because this option is less reliable and in case of failure of power supply could face the failure of all electrical equipment.

Installation of pre-heater

Classic installation by tapping into the cooling circuit involves different ways of incorporation. Regardless of how it was formed hole, can be connected by screwing or by means of expansion mechanism Defa. Pre-heater in the first case, is screwed into the hole and fixed with additional fasteners at the sides. Option of mounting with spacers is more complicated, but in practice the use of it safer. If in the case of drilling can not do without creating a thread, this time just enter the device in the circuit and to activate the mechanism struts – the mount will happen automatically.

preheaters 220V

There are models that are integrated in the artificial circuit of the cooling system. That is, additional terms of transfer, is specially designed forensure the functions of the heater. In this case, it is desirable to use preheaters with the pump which is a pump-swap. Such a configuration enables the coolant to circulate with a gradual but constant heating. Artificial circuit requires more effort from the point of view of installation, but in the process of operation is more efficient.

Setting assistive devices

Among the additional options noteworthy temperature sensor and the battery charging unit. Without these components in some cases can be dispensed with, but the system will lose in reliability and ease of use. Temperature sensor, for example, requires to automate the heater, and the power supply and makes the power system autonomously. Sensor mounting is made on the same principle as the main device heating Defa. Pre-heater integrated in the cooling circuit, and next to it, if possible, you should also embed and the device temperature measurement. And if you have the opportunity to be built into the circuit through the factory hole, it is better thus to complete the installation of the sensor. The charging unit is placed near the battery – for it is to provide a special flat area, mounting frame and insulation materials.

starting the electric heater

Features of the unit diesel systems

These devices differ operation principle and tasks that lie before them. In particular, they are used purposefully to eliminate the risk of solidification of paraffin waxes that dissolve in the fuel when severe frosts. As for installation, unlike conventional heaters diesel installations are integrated directly in the fuel outlines and blocks. Most often a diesel preheater mounted near filter. When the fluid passes through this section, it is heated. Extended band model heater of this type that are installed in hard to reach areas of the pipes.

Operating the preheater

The Norwegian manufacturer is famous not only for the development of unusual design heaters, but also control systems. Standard glow plug electric heater, for example, can be programmed to work at certain time interval via a dedicated control unit. The user also can independently activate the device using a special remote control.

To interact the governing Board of the complex and heater uses a special relay. If necessary, it may be the controller for the entire heating infrastructure of the car. In this scheme the pre-heater to engine can run in parallel with the heater in the cabin. However, the office will be opened in a separate order – or through the computer or through the remote control.

preheaters with fanfare

Positive feedback about the system Defa

Users are generally indicating the reliability of these systems, their reliability and coherence of the work with the side grid. As practice shows, the heater for the minimum time periods gaining optimal temperature and quickly heated implements to the power unit. Observed and structural advantages of the devices Defa. Pre-heater of this brand is characterized by ergonomic shape, sophisticated technology connectors and at the same time, physical reliability.

Negative feedback

According to the owners, these heaters have two major drawbacks. First and foremost is the complexity of the implementation of the management infrastructure. This applies to electric models. They are easy to use, but to achieve the comfort control will have to implement quite troublesome installation of electric lines from the relay and the onboard network. The second disadvantage – the price at which it is implemented pre-heater. The average price on the characteristics of the kits is 5-7 thousand rubles For comparison, the Chinese counterparts are available for 2-3 thousand Another matter that the quality levels of these products are not comparable.

Conclusion

diesel pre-heater

The Use of heaters of this type are still in doubt a large part of automotive experts. The skepticism is due to the fact that intervention in critical parts underhood power infrastructure in principle is a risky venture. However, many risks can be eliminated technologists Defa. Pre-heater from this company even in modifications of the initial segment has several levels of protection. This applies to mechanics, which is insured against physical overload, and electronic systems with protection against power surges. Another thing is that disturbances in the installation itself can have a negative impact on the quality of operation of the heater.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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