One of the most effective means for combating difficult starting of a car’s power plant is pre-heaters, operating from a 220 V network and ensuring warming of the coolant before starting the engine. The car accessories market offers such devices from a variety of manufacturers, including Chinese ones.
Long Fei devices have gained wide popularity among car owners.
These pre-start devices, despite the fact that the manufacturer is Chinese, cope with the task quite well, and the installation of the Longfey heater does not require changes to the design of the power unit.
Heaters "Lunfey". Design Features
The manufacturer offers a choice of several device models with different performance indicators. This allows you to choose a heater for almost any car - from a city runabout to an SUV or truck. Despite the fact that there are several types of devices, the heaters are built according to the same principle - they are all tank type with forced circulation of coolant, although they look different in appearance.
The device of the Longfey heater implies the presence of:
- Heating element (operating from a 220 V network);
- Electric pump;
- Composite body;
- Thermostat;
The heater is electric, but it works with liquid. To prevent contact of electrical appliances with antifreeze, this type of housing is used. It consists of two halves separated by a partition. The cavity through which the antifreeze passes is completely isolated from the one in which the electrical elements are placed. But at the same time, the heating element and the pump impeller go into it. The liquid enters the heating tank through the terminals (supply and discharge) located on the housing cover.
When installing the Longfei heater, follow the recommendations
- Do not leave Longfei on overnight. Use timers.
- When inserting into the cooling system, keep in mind that it is advisable to place the heater below the interior space heater radiator. This prevents air from entering.
- The longfey must be inserted into the cooling system, at the point where the fluid passes from the cylinder block to the heater.
- To expand the installation possibilities of the unit, use additional hoses.
- Longfey can be installed horizontally or vertically. Or you can even do it at an angle of 45 degrees.
- Attach the preheater so that it does not hit other parts while driving.
- Connect the heater to a normal power supply with grounding to avoid short circuits.
- Be carefull!
Before you begin installation, consult with experienced people who have positive experience or look into the service of experts.
Models and their characteristics
Longfey electric heaters are divided into series. The models included in each of them differ in performance characteristics.
The manufacturer offers customers a choice of series:
"Little Q"
Heaters of this series have a square shape with parallel pins. In terms of power they come in 1.5 kW, 1.8 kW and 2.0 kW. The pump capacity for all models is 8 l/min. Designed for insertion into a small circle of the cooling system. Installed in a small circle of the cooling system;
"Little Dragon"
Models in this series are rectangular, the terminals are located perpendicularly. It includes three models, identical in power and performance to the previous series;
"Decepticon"
A series of powerful rectangular heaters (2.0 kW, 2.5 kW and 3.0 kW) and perpendicular pin arrangement. At the same time, their pump performance is still the same 8 l/min;
"King"
Includes only one model - 3 kW. This heater has a rectangular shape with terminals installed perpendicularly. Electric pump capacity – 8 l/min. It is placed in a small circle of the system;
"Brothers"
The series also consists of one 3-kilowatt barrel-shaped model. Its leads are installed perpendicularly, the pump pumps 8 l/min;
In general, all models differ from each other only in the power of the heating element and the shape of the body.
Device features.
There is a wide selection of preheaters on the market, which differ in their performance indicators. Thus, there are no problems with selecting a device for any type of vehicle, be it a truck or a passenger car.
Almost all heaters have the same structure, but differ in appearance. They have the function of forced coolant circulation (pump), and are of the tank type.
The Longfey apparatus has the following elements:
- composite body;
- heating element (pump) operating from a 220V network;
- thermostat;
Interaction with the liquid occurs through an electric heater. The composite housing, which is divided by a partition, reliably protects the contact of the coolant with the electrical components of the installation.
Antifreeze enters through a special recess. It is reliably isolated from the one in which the power supply elements are located. The pump impeller and heating device are connected to this recess. Coolant enters the heating tank through the outlet and supply terminals, which are located on the body of the device.
Advantages and disadvantages
The advantages of Longfey preheaters include:
- Small overall dimensions, which makes it easy to find a place for its installation;
- The presence of a pump ensures uniform heating of the antifreeze in the system due to forced circulation;
- Availability of overheating protection systems (when a certain temperature is reached, the device turns off);
- A wide selection of models allows you to choose a device for any car;
- Connecting the Longfey heater will not cause any difficulties and does not require modifications to the motor;
But they also have certain disadvantages that relate not only to the devices of this particular manufacturer, but to the design and operation features of all devices of this type:
- To connect, you need a 220 V socket, so such devices cannot be used if the car is located far from housing;
- Requires compliance with safety precautions when using;
- The breakdown is detected only during the process of starting the car (the device was turned on, hoping that it would work, but then it turns out that the engine is not warmed up);
But all the negative aspects do not become a reason to use this device in a car. But at the same time, for everything to work normally, the Longfey preheater needs to be installed correctly.
READ ALSO ON THE SITE
A plug with an electrical cord connected to the electric heater can be attached to the radiator grille or to the car bumper. It is screwed in instead of the temperature sensor. There are several types of heaters.
Additionally, the diameter of the piston is taken into account. Pay special attention to the safety of operating the engine preheater. Connection diagrams For each type of model there is its own connection diagram, which must be followed, otherwise antifreeze circulation will not be ensured; this applies to gravity-fed models. This method will avoid the possibility of an engine fire or electric shock to a person. The fact is that the heater does not heat the unit itself, but the antifreeze liquid. As noted, the difficulty of starting the power unit is largely due to the solidification of working fluids. Thanks to this, it ensures more uniform heating of the cylinder block. There are some nuances to using engine preheating: It is best to start the engine with the clutch depressed. The outlet from the heater should not have arc-shaped bends in which air can accumulate, preventing the circulation of liquid (Fig.
Search form
When installing the Longfei heater, follow the recommendations. Do not leave the Longfei turned on overnight. I tried it on a demo account, then opened a real account.
If with a tank heater equipped with a pump, everything is clear - when turned on, the pump provides circulation, then gravity-fed ones should be considered in more detail, since the scheme of its operation is quite interesting. A fully equipped device will cost the consumer more than 30 rubles.
Let's look at 2 ways to install the Longfei heater. You can embed the Longfei in two ways, parallel and sequential. High-quality sealing of all joints is ensured by a set of gaskets and clamps. Engine preheater 220 volt Pajero 2
Connection methods
Since the instructions included with the devices are poorly translated, and the diagrams depicted in them are not very clear, many simply cannot figure out how to properly install the device with their own hands.
There are several ways to install the device on your car. The first connection diagram is serial, and it is shown below:
Sequential installation diagram of the Longfey heater
It is more suitable for models with a parallel arrangement of terminals, since the device is inserted into only one pipeline of the system - supplying antifreeze to the interior heater radiator.
This scheme is quite simple, and to install it you need:
- Find the required pipe (on a warm engine, find the pipelines leading to the stove and check the degree of their heating with your hand. The connection is made into the warmer pipe);
- Drain the coolant;
- Choose a place to mount the heater on the engine or body (away from highly heated elements). If necessary, you can make a mounting bracket;
- Cut the pipeline and install the device into this cut (it is important not to confuse the heater leads: we connect the section leading from the engine to the water inlet, and the section leading to the heater radiator to the drainage outlet);
- Secure all connection points with clamps;
- Secure the device;
- Fill with coolant and check connections for leaks;
- Lay the heater cable along the body and remove the plug to a convenient place for connection. The wire must be secured;
With this connection diagram, for normal operation of the device, you should always keep the coolant supply valve to the heater radiator open.
The second connection method is parallel. It is more suitable for models with perpendicular leads. A diagram of such an insert is presented below:
Parallel installation diagram of Longfei heater
This scheme is somewhat more complicated in terms of implementation. You will also additionally need to have:
- Pipelines of appropriate length and diameter;
- Fitting for connecting the pipeline to the cylinder block (installed instead of the drain plug);
- Tee (for inserting into the pipeline);
- Clamps.
To install the heater in parallel, do this:
- Drain the coolant;
- We unscrew the drain plug on the cylinder block and screw in the fitting instead;
- We cut the pipe leading from the radiator to the engine (upper) and install a tee in this cut;
- Choosing a place to install the heater;
- Using prepared pipelines, we connect all the elements into one system (we connect the water inlet to the fitting, and the water outlet to the tee);
- We tighten all connections with clamps;
- We attach the heater;
- Fill with coolant;
Now, as for connecting the Longfey heater to an outlet. It is better to do this through an adapter with a timer, which will allow you to set the time to turn the device on and off.
If an extension cord is used to power the device, the wiring in it must be designed for the load created.
Finally, we note that even though Longfei heaters are manufactured in China, they are quite reliable products that can work for a very long time. The only malfunctions they have are usually associated with burnout of the wires inside the device. Fixing such breakdowns is not difficult.
Heater installation
You can install the Longfey heater yourself in several ways:
- serial connection diagram;
- parallel connection.
Installing Lunfey on a VAZ using a serial connection looks like this:
- you need to find a heated pipe;
- drain the antifreeze;
- choose a location for installation on the body or engine;
- install the device into the pipeline section;
- secure the connections with clamps;
- secure the device;
- pour antifreeze;
- lay the heater cable along the body.
This installation scheme is quite simple and does not require much effort.
Installing the Longfei engine heater using the second method is represented by the following sequence:
- you need to drain the antifreeze;
- screw in the fitting instead of the drain plug;
- insert the tee into the upper pipe;
- use a pipeline to fasten the components together;
- tighten them with a clamp;
- mount the device;
- pour antifreeze.
This is very convenient, as it is possible to set the time for turning the device on and off. Despite the fact that the device is made in China, it is a reliable heater that will work for many years.
In most of Russia, winters are quite harsh. Many motorists find it difficult to start a frozen engine in the morning. For some, such attempts are unsuccessful. There are several reasons for this. One of them is thickened motor oil if its characteristics do not correspond to the outside temperature. An insufficiently charged or “tired” battery also cannot effectively crank a cold engine. These troubles can be avoided by installing an engine pre-heater operating from a 220V network.
