How to turn on a Termex water heater: with mechanical control

Installation and connection of water heating devices to the network is most often performed by specially trained workers, since this process is difficult and requires the proper skills. But during operation of the unit, owners often need to restart the boiler themselves or change its settings. The period of use of the device depends on the accuracy of these procedures, so its owners are advised to read the instructions and find out how to turn on the Thermex water heater, check its correct operation, select the temperature mode, etc.

The installation of a water heater is most often performed by specially trained workers.

Main characteristics of Thermex

Devices of the Thermex line have the following characteristics:

Tank volume - 15, 30, 80 or 50 liters. As it increases, the water heating time will increase.
The required voltage is 220 V (permissible error is 10%), frequency is 50 Hz.
Maximum operating temperature is +95 °C. When it is reached, the emergency shutdown system is activated.
The internal part of the body is made of stainless steel and titanium, due to which the boiler has good thermal insulation and protection against rust.
The space between the body and the tank is filled with high-quality modern sealant - polyurethane foam. It provides additional thermal insulation and protects the device from leaks.
The liquid is heated by tubular electric heaters (TEHs) located inside the tank. The temperature is regulated using a thermostat.

The service life of the device is 10 years or more, subject to compliance with all safety regulations, regular maintenance and elimination of minor breakdowns.

Instructions for starting a Thermex boiler

If installation of equipment is usually carried out by specialists, then the owners themselves have to deal with its startup at least once a year. Let's take a closer look at how to turn on a Termex water heater so as not to negatively affect its performance properties. After all, the duration of operation and frequency of maintenance largely depend on the correct execution of the process.

Work order

Turning on the boiler: The steps for starting the water heater and the settings may vary slightly. It all depends on whether a flow or storage device is used. However, despite the design differences, the order of their inclusion has the same principle. The universal instructions for starting a Termex boiler are as follows:

Before turning on the water heater, the shut-off valve for supplying hot liquid from the common riser is closed. This occurs even if a check valve is installed on the pipe. After all, if there is a slight malfunction, the device will heat the central water supply without blocking the channel.
Before connecting the Termex storage water heater to the network, it is filled with water. The outlet of the hot liquid device and the mixer open in turn, and after them the inlet of the cold flow. These manipulations are necessary to displace air from the system.
After the water has flowed in an even stream, you can turn it off, turn on the unit to the power grid and, after setting the settings and waiting an hour or two, start using it.

The connection diagram for a Thermex water heater when using flow-type devices will be similar, except that the result will be felt immediately.

The next stage after switching on is checking the functionality. Before using the Thermex water heater you need to:

Make sure that the power indicators light up when plugged in.
Measure the temperature of the liquid supplied to the mixer.
After 20 minutes, look at the equipment sensors; if the connection of the boiler with the touch panel is done correctly, the temperature indicator on the device should already increase. If there is no electronic panel, you must once again measure the degree of heating of the water at the outlet of the mixer.

What to do if Thermex does not turn on

The installation process of a Thermex instantaneous water heater or any other model requires the presence of serviceable network elements: sockets, circuit breakers, cables of sufficient thickness. The devices have very high power, so if they do not work, first of all, armed with a tester, you need to check the presence of electricity in the outlet, then the power terminals. Video instructions for installing a Termex water heater will help you find their location, and the tester will help you take readings. If the voltage is zero, then the cable of the electrical appliance is broken.

What to do if the Thermex water heater does not turn on, or rather, power is supplied, but it gives an error - the most popular question. In this case, you need to open the device instructions and look at the explanation corresponding to the code indicated on the display. If this option is not available, the causes of the problem may be the following:

The heating element has a damaged or burnt-out coil. A sign is often a breakdown of electricity on the housing, then the RCD automatically trips and cuts off the power supply. The only way to combat this is by replacing the heating element.
The protection is triggered if the heating of the coolant rises above the set limit (usually more than 90 degrees), which occurs both when the control thermostat breaks down and when scale accumulates on the heating element, after which it overheats.
The tank is not filled with water. How to turn on a Thermex boiler for the first time >

Termex electric water heaters are manufactured using high technology and quality materials. Such water heaters are equipped from the factory with a safe shutdown function (RCD), which increases the level of safety of the device.

Such devices are manufactured according to international standards and meet all safety and environmental requirements. These devices must undergo state certification and meet GOST standards.

Electric water heaters of the Termex model range differ in their characteristics and the volume of internal space, which can be 15, 30, 50, 80 or more liters, and in this article we will talk about a Termex water heater with a volume of 30 liters, and we will also consider detailed instructions for using this models.

The Italian company Termex produces water heating devices of excellent quality and various internal tank volumes: 15, 30, 50 and 80 liters, respectively. According to customer reviews, 30-liter water heaters can last more than ten years without problems, of course, if you follow certain rules for servicing the device.

Instructions for installing and connecting the water heater

Boiler installation consists of 3 main stages:

Installing the unit on the wall.
Connecting the device to the water supply system.
Wiring assemblies and connections of the water heater to the network.

The installation of the boiler must be carried out by qualified personnel with appropriate skills. Improper installation of the device can lead not only to improper operation of the unit, but also to damage to property or human health. You can buy a Thermex water heater and order an installation service in Tyumen.

Water heater connection diagram.

Placement and installation of the device

The installation location of the water heater must comply with safety standards. You need access to sewerage, distance from electrical appliances (and other equipment for which contact with water is undesirable), the possibility of emergency drainage and autonomous connection to the switchboard. The installation process takes place in several stages:

Taking measurements, marking anchor attachment points.
Drilling holes, screwing in anchors.
Mounting the boiler to the wall.
Connecting taps to water supply circuits.
Installation of filters and pressure reducer on the cold circuit.
Installation of a safety valve, tee, drain hose and other auxiliary and protective elements.

To seal the seams between elements when installing a water heater, flax is used. It protects against the effects of hot water.

Electrical connection

The last stage of installing the boiler is connecting it to the electrical network. The procedure consists of the following steps:

Laying wires in grooves or in an overhead box.
Connecting the RCD to the panel board.
Route the cable from the electrical panel to the fuse.
Connecting the boiler to the machine with a separate cable.
Connecting the “phase”, “zero” and “ground” wires to the bottom of the water heater.

The wiring connection to the boiler is carried out exclusively by professionals.

The devices are not equipped with cords and a standard plug-socket system. Instead, they are connected to the network using a 3-core cable d 2.5-3 mm with the mandatory installation of a 16-amp fuse.

How to connect to water

Connection diagram of the water heater to the water supply.
(Click to enlarge) It is necessary that the water meets at least the minimum requirements set by the water heater manufacturer. If you have doubts about the quality of the water, it is best to install a purification filter. In this case, the service life of the water heater will increase slightly.

It is advisable to use a braided annealed copper pipe for water supply. Such a pipe can be easily shaped and is not afraid of temperature changes. And the strength of such connections is very high, so the taps for shutting off the water can be mounted on the tank itself.

After installing the water heater on the wall, cold water is connected to it. The combination valve, which is included with the water heater, is mounted on the pipe leading to the water heater (blue).

Specialist Note: An ordinary check valve is under no circumstances recommended.

If a hopeless situation has arisen with the absence of the necessary valve, then a safety valve is also screwed onto an ordinary valve in order to relieve the excess pressure created by the boiler. If the valve is installed by hand, it should be noted that there is no need to tighten it on the thread too much, four turns is enough. This is necessary to prevent stripping of the thread on the pipe.

A prerequisite is sealing the connection point. The valve may also be needed to drain water from the heater in case of repairs. Although, draining water through the valve is a long process. It would be better, of course, if space allows, to install a tee between the valve and the pipe. Then it will be much more convenient to drain the water.

Next, the pipe intended for hot water is connected either to the mixer or to the pipe that leads to the hot water tap. There are models of water heaters into which a third pipe is embedded. But according to the connection diagram it is not used. In this case, you just need to plug it securely.

You may also be interested in an article about Termex storage water heaters. Read an article on how to properly disassemble a Thermex water heater here.

And from this article you will learn how to replace the heating element in a Termex water heater.

First start-up and checking the correct operation of the boiler

After connecting the unit, you need to prepare it for connection and check its functionality. Algorithm of actions:

Shutting off the supply of hot water from the common riser. This is done so that the broiler does not heat the central water supply of the house.
Filling the tank. First, water is poured into the boiler, then the mixer and outlet for hot liquid are opened, then the inlet for cold liquid is opened. These manipulations are necessary to release air from the tank.
Opening the supply valves located on the boiler inlet.
Opening the hot water tap. After a while, when a stable and even stream comes out of it, it is closed.
Connecting the water heater to the electrical network.

From connection to the first start of the unit, you must wait 1-2 hours.

With mechanical control

The first start-up of a mechanically controlled boiler is carried out according to the standard scheme. Step-by-step instruction:

Indicate the power using the buttons on the control panel. There are 2 modes in total: 1.3 kW and 2 kW. The selected value is displayed on the indicator lamps: if 1 of them is on, Single power is selected, when 2 - Double power.
Adjust temperature. This is done using the regulator knob. When turned clockwise, the value increases, and when turned counterclockwise, it decreases. The step is 1°C.
Measure the temperature of the water in the mixer using a thermometer. Turn on the boiler, wait about 30 minutes and take another measurement to make sure that heating has started.

You can turn off a mechanically controlled device by turning the temperature regulator all the way.

On touch screen

The first start of a unit with a touch control panel is easier. Step-by-step instruction:

Exit the DEMO mode in which the device is initially located. To do this, you need to simultaneously hold the upper and lower brackets for 5 minutes.
Select power. This is done using the upper and lower selection keys. The display will show the selected indicator: Single power (1.3 kW) or Double power (2 kW).
Set the temperature. Switching to the selection mode is carried out by 2 clicks of the upper bracket. The value is displayed on the screen.
Set a timer. This is done by clicking the left selection bracket.
Turn on the unit using the round key in the center of the screen. Note the water temperature (it is displayed on the panel) and recheck it after 20-30 minutes to make sure it is rising.

You can stop the operation of the device by pressing the key in the center of the display again. A boiler with a diagnostic system will switch itself off if operating conditions are violated and display an error message on the touch screen.

Inclusion

The sequence of actions to turn on the Thermex boiler:

It is necessary to shut off the hot water supply to the riser. This is one of the essential rules on how to properly use a heating device. If you have a check valve, you still need to shut it off, since its breakdown, which you may not immediately find out about, will result in you providing hot liquid to all neighbors in the riser.
Fill the tank with water; to do this, open all the valves on the boiler (cold inlet and hot outlet at the boiler). Open any faucet in the apartment so that the air comes out of the tank; this moment will come when liquid flows from the tap.
Then connect to the mains. After 15-20 minutes, check if the liquid is heating up.
When you turn it on for the first time, you must set the water heating temperature in the range of 70-75 degrees.

Recommendations for choosing the Thermex water heater mode

The temperature regime is selected individually, depending on the needs of the owners of the device and its operational characteristics. General recommendations for selection:

At the beginning of operation, it is best to keep the boiler at the minimum temperature until the water warms up. After 4-6 hours, the indicator is gradually adjusted to the desired value.
If the broiler operates irregularly, the energy consumption is much higher, since the unit requires more energy to heat the water than to maintain its temperature. Therefore, during short breaks in use (1-3 days), it is better to leave the device turned on at a low temperature.
The most economical energy consumption is observed at an average water temperature of +45...+55 °C.

The device must be regularly put into Eco mode and disinfected. Under standard operating conditions, this is done 1-2 times a week.

At an average water temperature of +45 to +55 °C, energy consumption will be more economical.

Water heater Termex 50 liters

Distinctive features

Why are Termex products so popular? In the production of water heaters, high-tech material glass porcelain , which prevents the formation of scale and corrosion.
The inner surface of the tank consists of it. Other companies use enamel. Between the walls of the housing and the internal tank there is a thermal insulating material - polyurethane foam. It is necessary to contain the cooling of the water, because with it the loss of temperature is a maximum of one or two degrees per hour.

Water heating heating elements are susceptible to the harmful effects of scale. To avoid their formation, a magnesium anode is built in, which is recommended to be changed once a year. Step-by-step instructions are included in the kit.

Popular models of 50 l boilers

The most popular devices are models ID, IS, IF.

Thermex ID. This vertical water heater is as reliable and economical as possible. According to the developers, the design of the boiler prevents problems from occurring. It has a safety system during operation that prevents the formation of corrosion. The inner tank is coated with stainless steel. This model is equipped with a super-flat body with a depth of 23.5 cm, made of structural plastic, two internal tanks connected together. The boiler design saves space and can withstand high pressure. The front panel has buttons for controlling the thermostat and power modes.
Termex IS is equipped with a self-diagnosis function, which allows you to independently make decisions regarding operation in case of problems. Water heating occurs automatically. The advantages of the model include compact dimensions, ease of power adjustment, and ease of installation. The water temperature heats up to 70 degrees. The device is controlled using an electronic menu. The model has a vertical design, is equipped with a valve for draining liquid, a thermostat located on the front panel and a capillary safety thermostat.
Termex IF is equipped with an external thermostat for comfortable control. Vertical model coated with fine enamel. The built-in magnesium anode has an increased mass, which protects against corrosion more effectively than other models. The heating element is coated with a composition to prevent the formation of salt deposits.

Types of water heaters

When choosing a water heater, you should take into account its type, since this means a different device.
The devices are divided into flow-through and storage. Flow-through

Flow-through boilers are small in size. If you take the smallest storage device of 30 liters, then any flow-through device will still be smaller. This indicator largely determines the consumer’s choice, since the lack of space for installation is important. In addition, installing a flow device is an order of magnitude simpler than a storage device.

Instantaneous water heaters cope with heating water much faster, because the entire process takes place immediately as it passes through the device. The undoubted disadvantage of the boiler is the inability to use it at two or more points of water consumption. As a rule, the flow-through type is used when hot water consumption is low, and operation is reduced to simply washing dishes or washing at the dacha.

Cumulative

The Termex company is a leader in this area of production, largely due to glass porcelain, which is used to make the internal surfaces of tanks. It is this high-tech material that can most effectively protect the surface from corrosion and scale, which undoubtedly determines the strength, durability and ease of use of the device.

To ensure that the temperature of the heated water is maintained, high-strength polyurethane foam ; it does not allow the temperature to drop by more than two degrees per hour. The device is equipped with magnetic anodes that protect against aggressive scale that forms on the heating element of the water heater. They ensure long service life of the device. The heating element should be changed once every six months or a year. This period is directly dependent on the quality of the water.

Advice! Thermex heating element is sold in any company store. To replace the magnesium anode, you do not need to go to a workshop or call a specialist, since you can change it at home yourself.

The main difference between a storage heater and a flow heater is as follows.
Inside the sealed steel tank there is a heating element, which heats the incoming tap water to the required temperature, which is set on the thermostat. During the entire service life, the liquid constantly has a certain heating temperature .
This occurs at low power, which reduces the load on the consumer’s power grid. The advantages of a storage water heater also include the ability to consume water at several points at once. If you have made a final decision and the device is already in your home, then you should check the package once again. It includes a power cord with a European plug and mounting hardware. After the work on installing the boiler has been completed, you next need to understand the correct connection of the water heater, which is based on knowledge of the attached instructions and the diagram for connecting the device to the water supply system.

How to turn off the device and turn on hot water

Disabling the device is carried out in the same way as turning it on, but in reverse order. Algorithm of actions:

Disconnect the water heater from the power supply.
After the water stops heating, wait until it cools to room temperature.
Turn off the cold and hot water taps.
Open the hot water supply tap to the apartment or house.

Before restarting a switched off boiler, drain the water (if there was any) and thoroughly wash the inside of the casing.

After this, you need to fill the tank with clean water, pump out the air and start operating the unit again.

The presence of a check valve in Termex water heaters

In the store, the check valve is marked with a water flow arrow and is connected to a bypass valve (ribbed fitting in the photo). It is necessary:

When water enters the tank from the riser (for the first time you will have to open the mixer slightly and let the air flow). The system works without this, the pillow just accumulates on top and comes off when using the shower. We'll have to bide our time.
As soon as the pressure inside the tank is equal to the riser, the check valve slams shut. The heating element begins to heat the water. The coefficient of thermal expansion of steel is less than that of water. The tank begins to bend under pressure. The valve does not allow water back into the riser. Deformation causes damage to the tank, leading to cracks in the protective enamel coating and corrosion (see above). The bypass valve releases excess fluid under pressure.

The check valve prevents the heated water from leaving the riser. It is permissible to use a water heater with an empty tap. When the tap is turned off, the upper part of the tank is drained, but 80 percent will remain inside. To use it, a tee is placed on the inlet pipe at the entrance to the water heater, water is drawn through the valve if necessary. It is important to make the correct wiring diagram. The tee is located between the water heater and the bypass valve.

Let us mention the rule for cutting in a tee. Usually sediment accumulates in the tank. If you cut a check valve into the lower outlet of the tee, when you turn off the water and try to empty the tank through the side outlet, dirt will settle on the valve, which is unfavorable for the operation of the latter. The scheme looks advantageous when the water heater is powered from the side, and the emergency drain goes vertically down. In this case, we partially clean the tank without disassembling the tank and removing the heating element, which is very convenient. Take note.

Place a coarse filter near the riser - the check valve does not like dirt. The internal channel resembles a Latin V placed on its side. There is a mesh at the top, and according to the rules, the entrance wall has a negative slope (directed downward), dirt accumulates inside. Deviate from the rules; during a planned or emergency shutdown of water, the rust will be washed into the riser. But deviation is not allowed. A good owner can clean the filter himself. Signs: the tank does not fill well, but the water drains through the outlet well. If cleaning does not help, the problem is with the check valve; the fittings should be removed and washed.

Before installing the Thermex water heater, make sure there is a convenient approach to the device. Quickly see: removing the heating element is not an easy task. If you do not want to reinstall the Termex water heater yourself, worry about scheduled maintenance in advance. The instruction manual clearly states how many times a year to clean the product by completely emptying the tank.

Frequent errors and malfunctions

When you turn on the water heater, various problems and malfunctions periodically occur. List of common problems and their solutions:

Problems with the electrical network. The broiler has a lot of power, so due to its operation, the socket often burns out or the wiring becomes unusable. To correct the situation, it is worth ringing the electrical network with a special tester, and if faults are detected, replace damaged elements.
Burnt out or broken heating element coil. With this breakdown, the device not only does not work, but also produces an electric shock when you touch the body. The problem is solved by replacing the faulty part.
Overheating protection triggered. This happens when the temperature inside the device exceeds the maximum allowable value. The reason for this may be the accumulation of scale on the heating element - then it needs to be cleaned. In addition, such a malfunction occurs due to a broken thermostat - it will have to be replaced with a new one.
Incomplete water tank. The problem is solved by pumping out and refilling the tank with liquid, as well as removing excess air to the outside.

Water heaters with touch control display an error code on the display. A complete list of them with a description of common breakdowns is contained in the operating instructions that come with the device.

Safety rules during operation

The following rules, which are stated in the operating instructions, must be observed.

Forbidden:

Connect the device to the power supply if there is no liquid in the tank.
Try to remove the protective panel while the device is connected to the network.
Use the EWH when it is not grounded.
Use the device when the water pressure in the main line is more than 0.6 MPa.

Boiler safety group with pressure indicator

Use water that has passed through the EWH for cooking.
Use spare parts that do not meet the recommended technical specifications.
Use water that contains sand or other particles.
Change the fastening design.
To extend its service life, it is strongly recommended to clean the tank, followed by changing the protective anode once a year. And if you have very hard water and the device operates constantly, you need to do it every six months.

Taking water procedures:

Connect the device to the network
Set a comfortable temperature. Depending on the device you use, mechanical or electronic, there are two ways to adjust the water temperature.

Adjusting the heating temperature
For example, in the thermex bio glasslined line, the temperature is adjusted by rotating a mechanical relay, while in thermex stainless g.5, to set the temperature, you will need to press the up arrow on the display and hold it until it reaches the desired value.
The optimal heating temperature is 45-55 degrees; this range will protect the heating element from plaque formation. Also in this model it is possible to use an economical mode using one heating element.
Wait until the water heats up.

Rules for using a water heater

Compliance with the operating instructions for the water heater is necessary not only to extend its service life, but also to ensure the safety of the owners. Basic rules and recommendations:

Maintenance is required once every 1 year. The device is disassembled, the water is drained into the sewer, and the inner surface of the housing and heating elements are cleaned of scale and deposits. You can carry out the procedure either independently or with the help of professional workers.
If the device is not used in the warm season, it is better not to drain the water from it: this will increase its resistance to corrosion and damage. The liquid is drained and the tank is refilled with clean water only when the boiler is turned on again.
When the device is not used in the cold season, it is better to drain the water from it. Freezing may damage the casing and break internal parts.
If the emergency shutdown system is triggered, the water heater may be restarted only after the time specified in the operating instructions has expired.
It is forbidden to connect a water heater to the network without first filling the container with water.
The maximum permissible pressure in the water supply system for operating the device is 0.6 MPa.
For installation and connection of equipment, it is allowed to use only those parts that are included in the kit. If they are worn out, they must be replaced with similar ones.
The water heater cannot be used without grounding.
Under standard conditions, you need to clean the device from scale and replace the anode once a year, and if the water is highly hard - once every 6 months.
The broiler can only be connected to water pipes using safety elements.
The water in the water supply system to which the broiler is connected must be clean, free of heavy metals and other harmful substances. Their impact can lead to premature wear of parts and damage to the housing.
Water heated by the unit must not be drunk or added to food for people or animals.
Draining water from the water heater is allowed only after it has been disconnected from the network.

If breakdowns or malfunctions in the operation of the device or its complete failure are detected, it is prohibited to disassemble the unit yourself and carry out repairs. This should only be done by workers with appropriate qualifications who know the principles of operation of the device and methods for diagnosing common breakdowns.

Purpose of the heater

After this, it is necessary to conduct a thorough inspection of the device body in order to determine the location of the leak and decide what to do next. The outlet must be modern, have a grounding terminal and be located in an area protected from humidity.

To prevent these malfunctions and, as a result, save on repairs, regularly - at least once a year - clean the Termex water heater. Video: In case of any malfunction, the safety valve built into the system will operate.

Let's turn the tank upside down: Cold water enters from above and hits the divider. If this does not help, you should descale the thermostat.

Moreover, more powerful models require less time to heat water. How to check the ringing of the heating element?

We recommend: How to restore electrical equipment on

Was the article helpful? What needs to be done at the first problems Each water heater has its own warranty period, so if problems occur before this time has expired, you can safely contact the service center and they will provide you with all services free of charge. Installation and connection requires the use of a circuit in which water can be supplied simultaneously to the tap and shower.

You just need to take out the old one, buy a new one, which costs a penny, and put it on the device. But sometimes there are cases when a nichrome spiral burns out inside the shell, in this case the reason will not be so obvious and you can check the integrity of the spiral with a tester. To extend the service life of the water heater, it is recommended to replace the magnesium anode at least once every 6 months.

Choosing a Thermex water heater for 80 liters

Descaling is carried out using special cleaning agents. A damaged tube cannot be repaired; the thermostat will have to be replaced. Checking the functionality of the thermostat and thermostat. Water heater safety thermostat. In order to check the thermostat, you must have a multimeter. Unscrew drain valve 5.

A place has been allocated for it near the heating element. Therefore, it is advisable that cleaning filters be installed at the outlet of the water pipe in front of the tank. It is connected to the body using paste. Boiler Thermex H15-U under the sink in the country