Operating manual, instructions for electric water heaters Termex series RZL, RZB, RSD

Electric water heater Termex: instruction manual

Termex brand water heaters use modern technologies and materials of the highest quality. Electric water heaters of the Termex brand are equipped with a residual current device (RCD), which ensures complete electrical safety during operation. Termex electric water heaters are designed and manufactured in strict accordance with international standards, guaranteeing reliability and safety of operation. All models have passed mandatory certification by the State Standard of Russia and fully comply with the requirements of GOST R 51318.14.1 -99 GOST R IEC 60335-2-21-99. This manual applies to Thermex models ( RZL, RZB, RSD series ) in which a silver anode is optionally installed (Silver models). The model name of the purchased water heater is indicated on the identification plate on the device body.

Installation and connection of the boiler to the network

Under no circumstances should the ground wire be connected to the neutral wire. The device comes with a standard cord and plug for connecting to the mains. In normal condition, when the Termex is hanging correctly, the intake tube hole inside the tank enters in the upper quarter, and the inlet pipe in the lower quarter.

To correct this drawback, you need to remove them and give them the desired shape, and also slightly bore the holes for the bolts.

Installing a boiler The first step is to fix the heater on a load-bearing wall, taking into account the fairly large weight of the equipment.
Such devices do not require special installation, as they operate from a regular outlet. The device cannot withstand thermal conditions. What affects the heating temperature of water? This design feature allows you to change the lateral tilt of the case by simply moving the bottom point of the drive. But this is only provided that the water in the system meets the necessary standards and does not contain a large amount of impurities and heavy elements, and that the installation, operation and timely maintenance rules are followed when using the device. Electrical diagram for connecting a water heater through a socket connected to a cable laid from the switchboard: The difavtomat can perfectly replace a combination of an RCD and a circuit breaker. Unscrew the drain valve5. Also, the operating instructions for the equipment must include an electrical diagram of the water heater and a network connection diagram. Installing a boiler The first step is to fix the heater on a load-bearing wall, taking into account the fairly large weight of the equipment. Most often, the design of a water heater has two thermostats: the first controls the heating of water, and the second monitors the condition of the first.

If necessary, replace it with a fresh one. Failure to carry out cleaning work will lead to a decrease in operating efficiency and a decrease in the level of efficiency. Note that the manufacturer has established a minimum service life of a Termex water heater of seven years.

It is capable of being shaped and is not afraid of temperature changes. If the brackets are held for some time, the characteristic will change quickly. The valve is often included with the water heater, but it can also be purchased separately. Experts say that using a regular check valve is highly undesirable. When installing these elements with your own hands, turn the thread no more than once, otherwise you will damage the pipe. Connection diagram of the boiler to the water supply

Brand Description

Thermex is an international corporation that has been on the market for 70 years. She represents a group of companies. This is a large manufacturer of heating equipment. Its peculiarity is the introduction of independently developed technologies. The manufacturer does not use other people's ready-made solutions.

The company was founded in 1949. In those years, production was located only in Italy. The company now offers services in 60 countries. Termex products have become widespread due to their quality, reliability, and long-term operation. The company entered the European market in 2007. More than 100 branches have already been opened.

Equipment of this brand can be used in difficult conditions. It is developed taking into account the influence of negative external factors: high and low temperatures, changes in coolant parameters in heat supply systems (within +5...+20 °C), differences in liquid compositions. In this case, the characteristics of highways and water supply sources are taken into account. The company focuses on the individual characteristics of different markets.

Key points when installing Termex water heaters

Let's look at how to install a Termex water heater yourself

Let us pay attention to the points mentioned in passing. By the way, don’t forget - the entire plumbing fits on at least three and a half turns

Otherwise, cut the thread. Self-installation of a Termex water heater is carried out according to the standard scheme. We will only highlight the silent places.

You cannot operate a Thermex water heater without a magnesium anode. In heating technology, a magnesium anode protects aluminum and steel against galvanic corrosion in circuits containing copper elements. This is stated in SNiPs. It is prohibited to operate iron and aluminum structures downstream from copper ones.

The same applies to water heaters. Copper heating elements are often used. Copper conducts heat well, and the efficiency of the device increases. There are steel heating elements. This is due to electrochemical corrosion: the difference in electrical potential between the steel tank and the heating element is zero. Consequently, destruction is blocked. We would like to note that the process of electrochemical corrosion is not associated with 220 V from the outlet. Metals in nature have a natural potential. Copper is on the right edge in the series of charge values, magnesium is on the left.

When a conductive medium is formed between two metals, charge transfer begins. As a result, one material becomes a donor and breaks down. Water heater tanks, not counting instantaneous models, are made of steel. In some cases, the alloy is alloyed, obtaining the properties of stainless steel, in others it is covered with enamel. There is no third. When the protective layer is broken, the steel comes into contact with water. As a result, if copper is lurking upstream, the process of electrochemical corrosion starts. All the more so because the full force of the impact falls on a small scratched area of ​​steel. Due to this, the process of electrochemical corrosion occurs quickly. The tank begins to leak, the damage cannot be replaced under warranty or repaired. Draw conclusions.

It is difficult to patch a tank - you will have to tear off the external thermal insulation glued (foam) to the walls from the outside. It is necessary to carry out passivation of the damage sites from the inside. The process cannot be called simple and safe. Be clear that operating a water heater without a magnesium anode is unacceptable.

Popular models of 50 l boilers

The most popular devices are models ID, IS, IF

1. Thermex ID. This vertical water heater is as reliable and economical as possible. 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 covered with stainless steel. The 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.
2. 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. Pros: compact size, ease of power adjustment, 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 on the front panel and a capillary safety thermostat.
3. 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 compound that prevents the formation of salt deposits.

When is a water heater repair required?

• no signal about power supply, no current in the electrical circuit;
• there is power, the indicator lights up, but the water does not heat up - the heating element has failed;
• The thermostat failed;
• leaks or fistulas appeared;
• the anode needs to be replaced.

For self-repair, you will need a minimum set of tools and spare parts for the device - a spare heating element assembled with gaskets, a magnesium electrode and seals. You will need keys to unscrew the fasteners, a brush to remove scale, and a flashlight to examine the internal condition of the enamel coating. A Termex 80 liter or other water heater can be repaired with your own hands in a certain sequence:

1. If there is no power, the socket may be faulty, there may be no contact in any of the network wires, or the power supply has simply been cut off in the line. Care and a current indicator will help you find the problem. But power may not be supplied due to interlocks provided in the dry start protection system, low insulation, or tripping of an RCD.
2. The heating element does not heat. After removing the cover from the housing, free access to the terminals of the heating element and use a tester to check it for serviceability. If there is voltage at the terminals, but the element does not heat, it requires replacement. In accordance with the instructions, drain the system and save information on the location of the wires on any medium so that they can be connected correctly in the future. Disconnect the wires, remove the temperature sensors and unscrew the flange connection of the platform with the heating element and anode. Replace the faulty heating element, and at the same time clean or replace the magnesium electrode. It is attached to the same flange, but it can be removed separately without disassembling the circuit.
3. A leak in the seals that appears during operation indicates wear of the sealing gaskets, which need to be replaced or rewinded at the flange connections. If a leak appeared after replacing the heating element, when they were repairing the Termex water heater with their own hands, the flange was skewed due to uneven tightening. You need to re-install and replace the gasket.
4. If the heating element is working properly, power is supplied, but there is no heating, you need to check the serviceability of the thermostat. To do this, the unit is dismantled and tested for its reaction under operating conditions, that is, in an environment of 60 0 and at room temperature. Deviations in the response to power supply are considered a malfunction.

Lack of grounding accelerates corrosion of all elements under water. To prevent the tank from rusting and the flanges from wearing out, a grounding circuit is necessary.

It should be noted that a leak in the storage tank cannot be eliminated for many reasons. The inner tank is covered with enamel; welding will destroy it. But another insurmountable difficulty is the three-layer structure, when it is impossible to dismantle the internal tank without damaging the thermal insulation and the upper casing. Therefore, you need to treat the tank with care, knowing that it cannot be repaired.

Device

To effectively troubleshoot problems, it will be useful to first become familiar with the design of Termex boilers.
The design can be divided into the following components: Temperature sensor. With its help, the owner can find out at any time what temperature the coolant in the tank has. It is often designed in the form of a scale with an arrow or a digital indicator. This device makes the operation of the boiler more convenient. Even if this sensor fails, it will not affect the operation of the device itself. True, in this case the user will no longer be able to find out to what temperature the water will heat up. Thermal insulation. Its presence allows you to store heated water for a long time. This element will never break. Hose for draining hot water. It refers to those elements that usually do not cause problems for the owner. The outer shell of the water heater housing. This part can be made of different materials - metal, plastic, or a combination of both. The integrity of the outer shell of the case can only be compromised if the device accidentally falls or the owner himself suffers damage to it. Internal tank. It is usually made of stainless steel. Due to its small thickness, it can easily be affected by corrosion, which can also cause its failure. But if you provide regular maintenance, then it will not create problems for the owner for a long time.

heating element. This element plays a decisive role in the operation of the device, since it heats the liquid. Moreover, more powerful models require less time to heat water. Due to the fact that it is constantly in use and exposed to corrosion, the most frequent failures of water heaters are associated with it. Magnesium anode. A place has been allocated for it near the heating element. Its main purpose is to protect the tank and heating element from corrosion

It is very important to monitor its condition and, if necessary, replace it with a new one. Cold water supply hose. Thermostat for Thermex water heater. Thanks to it, the liquid in the device is heated automatically. There are several types of thermostats: rod, capillary electronic

Although there are models of different designs on the market, they still use the same operating principle. The temperature sensor constantly monitors the temperature of the liquid. Depending on this parameter, it sends signals to the thermal relay, which begins to close or open the power supply circuit of the heating element. Most often, the design of a water heater has two thermostats: the first controls the heating of water, and the second monitors the condition of the first. A feature of expensive models is the presence of three thermostats, and the task of the third is to monitor the serviceability of the heating element. A failed thermostat cannot be repaired, so it is replaced with a new one. Insulating gaskets. They are necessary for sealing and protection from electricity. This element must also be changed in case of failure. Electronic monitoring and control circuits.

There are several types of thermostats: rod, capillary electronic. Although there are models of different designs on the market, they still use the same operating principle. The temperature sensor constantly monitors the temperature of the liquid. Depending on this parameter, it sends signals to the thermal relay, which begins to close or open the power supply circuit of the heating element. Most often, the design of a water heater has two thermostats: the first controls the heating of water, and the second monitors the condition of the first. A feature of expensive models is the presence of three thermostats, and the task of the third is to monitor the serviceability of the heating element. A failed thermostat cannot be repaired, so it is replaced with a new one. Insulating gaskets. They are necessary for sealing and protection from electricity. This element must also be changed in case of failure. Electronic monitoring and control circuits.

It is from the elements described above that all storage heaters manufactured under the Termex brand consist. It should be said that flow devices also have a similar design, but they do not have a storage tank and have a heating element of increased power.

Situations that require draining water

Long-term and trouble-free operation of the device greatly depends on its correct operation. Note that the boiler must be filled with water at any time, since the material from which the tank is made is metal. It rusts when exposed to air. Water interferes with this process. But there are situations when you simply need to drain the water. In accordance with the instructions for use, in order to operate the device, it is necessary to periodically perform a medical examination and clean it from accumulated dirt. Water heaters are often installed at the dacha or in other rooms that can freeze. In these circumstances, the owner has to drain the water from the device. Due to savings, more and more people prefer to perform this procedure themselves.

What is included in the kit along with the tank?

The Thermex delivery set includes the following parts and components:

1. Electric heating element with protective shutdown unit.
2. One way safety valve.
3. Special fastening anchor - there are two units in the set for each fastening bar.

At the same time, the boiler tank is enclosed in appropriate packaging, and an installation manual and instructions for use are attached to it.

The Thermex storage water heater must be provided with normal grounding, which complies with all safety standards for electric heating installations. The water supply must be connected according to the water heater instructions through a standard shut-off plumbing connection that has the appropriate certificate.

Maintenance (MOT) Termex

During maintenance, the presence of scale on the heating element is checked. At the same time, sediment that may form in the lower part of the EWH is removed. If scale has formed on the heating element, it can be removed using special cleaning agents or mechanically. It is recommended that a year from the moment the EWH is connected, the first maintenance is carried out by employees of a specialized organization and the timing of subsequent maintenance is determined based on the intensity of scale and sediment formation. This action will maximize the life of the EWH. In Silver models, it is necessary to replace the silver anode once a year by a specialized organization.

Attention: the accumulation of scale on the heating element can cause damage to it. Note: Damage to the heating element due to scale formation is not covered by the warranty.

Regular maintenance is not covered by the manufacturer's or seller's warranty.

To carry out maintenance, you must do the following:

1. turn off the power supply to the EWH;
2. let the hot water cool or use it through a mixer;
3. shut off the flow of cold water to the EWH;
4. unscrew the safety valve or open the drain valve;
5. put a rubber hose on the cold water supply pipe or drain valve, directing its other end into the sewer;
6. open the hot water tap on the mixer and drain the water from the EWH through the hose into the sewer;
7. remove the protective cover, disconnect the wires, unscrew and remove the support flange from the housing;
8. If necessary, clean the heating element from scale and remove sediment from the tank;
9. assemble, fill the EWH with water and turn on the power.

In models with a drainage pipe, it is enough to shut off the flow of cold water into the EWH, unscrew the plug on the drainage pipe and open the hot water tap. After the water has drained, you can open the cold water supply to the EWH for a while to further flush the tank. When carrying out maintenance of the EWH by a specialized organization, a corresponding note must be made in the service coupon. Subject to compliance with the rules for installation, operation, and maintenance of the EWH and the quality of the water used meets current standards, the manufacturer sets the service life of the EWH to be 7 years.

. MAINTENANCE Protect the surface of the EWH from damage,...

Page 9

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• Text

8. MAINTENANCE

Protect the surface of the EWH from damage, shock and impact

active solvents.

Wipe dirty surfaces of the water heater with a soft cloth.

soaked in a soapy solution. Do not use abrasive products

or chemically active detergents.

A

All maintenance work on the EWH should be carried out only after disconnecting it from the power supply.

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Possible malfunctions and methods for their elimination of the Termex electric water heater

. Layout of the Temp thermal switch button. Preservation (L1) – Temperature maintenance Double Power (L2) – Double power Single Power (L3) – Standard power Temp. Selector - Temperature selection

Rice. 3. Mechanical control panel

. Electronic control panel

Maintenance and operation instructions, tank capacity 15, 30, 50 and 80 liters

The device is controlled via the control panel, which is located on the front side. Such control can be either mechanical or touch, depending on the selected model.

In Termex models with a tank capacity of 15, 30, 50 and 80 liters and with mechanical control, control is carried out using buttons (1 or 2), which indicate the power of the water heater, where “1” means a power of 1.3 kW of energy, and the total power is 2 kW. The power level is selected based on the situation and need, as well as depending on the time of year. A water heater with touch control and a digital screen is considered more functional and modern. Switching on and off the power of the device is carried out using the “ON/OFF” keys on the equipment screen. The screen also displays information about the current temperature level. The power can be adjusted using the button located in the middle - “Power selector”.

While using the Termex water heater, the temperature is adjusted:

In devices with a mechanical control system using a regulator on the front side of the device. In such a device, the temperature decreases by turning the knob from right to left, and accordingly, by turning the knob from left to right, the temperature increases, the maximum level of which can reach +75 degrees. You can turn off such an electric water heater by turning the regulator from right to left until it stops. It is worth noting that the Termex RZB10 water heater model does not provide for manual temperature control.

Devices with electronic (touch) control have an LCD display. Control is carried out using three touch buttons. You can also select the appropriate operating mode of the water heater on the screen. To set the required temperature, you need to press the “Temp” key a couple of times. Selector" on the front side of the device. In all Thermex electric water heaters, the default temperature value is set at 75 degrees from the factory, which is also restored in the event of an unexpected power outage.

If during operation of the water heater the automatic shutdown system operates, then after the time has elapsed, you must turn on the device using the corresponding key. If the device turns off again after turning it on, then you cannot do without involving a specialist in this matter. Under no circumstances try to open or repair the device yourself, as it can only be repaired with special tools and professional skills.

If during the cold season the water heater is not used for a long time, it is recommended to turn it off and drain the water from the internal tank of the device in order to avoid freezing and damage to the water heater.

Adviсe

After installing the water heater, proceed to its startup. To carry out this process correctly, it is recommended to follow the instructions for use of the heating apparatus. Proper start-up determines the lifespan of the boiler and the frequency of maintenance. Starting and setting boiler modes will differ depending on the type of water heater. However, in general, the order of inclusion is based on the same principles. It looks like this:

• Before turning on the device, it is necessary to close the shut-off valve for hot water supply from the common riser. This must be done even if there is a check valve;
• then they proceed to filling the reservoir with liquid and displacing the air;
• after which you should plug the plug into the socket and adjust the settings. You can start using the equipment in a few hours.

To check the functionality of the Thermex water heater, you need to perform the following steps:

• notice the power indicators turn on (they start to light);
• determine the temperature of the liquid leaving the mixer;
• After 20–25 minutes, you can see increased temperature readings on the touch panel.

In most cases, all consumers are satisfied with the Thermex 50-liter water heater. When choosing the optimal heating equipment option, reviews from real customers will help solve this problem and answer the most pressing questions. Many consumers unanimously concluded that a heater with a capacity of 50 liters is much more economical than larger units. The manufacturer offers a fairly wide selection of models - from the cheapest to designer boilers with electronics and a touch screen.

You can learn how to make a water heater with your own hands by watching the video below.

Kinds

Thermex water heaters with a capacity of 50 liters are available in a wide range.

• Flow-through boilers are small-sized boilers that are installed in places where there is not enough space to install large water heaters. They have the undeniable advantage of quickly heating water. The disadvantage of instantaneous water heaters is that they cannot be used in rooms with several water intake points. They are used for small consumption of hot water, for example, for washing dishes.
• Storage heaters are protected from corrosion and scale, which increases the service life of the device. This is ensured by a special material - glass porcelain, from which the internal surfaces of water heating devices are made. To maintain the temperature of hot water, polyurethane foam is used, which prevents the water from cooling by more than two degrees per hour.

It is recommended to change storage heaters every 6 or 12 months. The main difference between storage equipment and flow-through equipment is that in the inner part of the tank there is a heating element, which is necessary to heat the incoming liquid to the required temperature. During the entire period of use, the water will be at the same temperature.

To select the optimal 50-liter boiler, you need to study the characteristics of the product lines.

Flat Plus has a flat white shape and is equipped with an ergonomic electronic unit, which includes a display with the heating temperature value.

It has the following characteristics:

• power – 2 kW;
• internal tank – stainless steel;
• body – plastic;
• automatic cleaning and draining of water;
• water heating time – 80 minutes.

• Diamond Touch is a horizontal heating equipment that is manufactured in a minimalist style with geometric shapes. There are two tanks inside the water heater, providing a flat storage design. The seams of the tanks are welded, which helps protect the tanks from depressurization. The electrical system is equipped with the ability to self-diagnosis, as well as adjust the liquid supply mode and heating level. If a fault occurs, all information about the fault is displayed on the screen.
• Praktik is small in size, which allows it to be installed in small apartments. It has a round shape made of stainless steel. By welding the seams, the seams are sealed and resistant to corrosion. The internal surfaces of the water heater are covered with a heat-insulating layer, due to which water heating and the efficiency of the equipment are stabilized. The power of the device is 2.5 kW.

Purpose of the heater

The Thermex heater is made using modern assembly technology using high-quality materials. It has a residual current device (RCD), which ensures safety during operation. Termex complies with international standards and the requirements of GOST R IEC 60335-2-21-99. Some heater models have a silver anode. This is indicated in the instructions for the water heater.

The device is used to heat running water in domestic and industrial premises. It is very reliable and economical.

Otherwise, the water will not have time to heat up to the desired temperature. In winter, Thermex should be used in well-heated rooms. All models of household appliances are connected to a 220 V power source. The Termex heater is supplied with:

Figure 1. Schematic diagram of a water heater.

1. Automatic RCD.
2. Safety valve.
3. User manual.
4. Anchors for fastening.
5. Package.

The schematic diagram of the water heater is shown in Fig. 1. It shows how the liquid is heated in a technical structure. The Thermex heater body is made of durable plastic. The inner tank is made of low carbon stainless steel. Thanks to this, Thermex has excellent corrosion resistance and a long service life. The space between the plastic body and the steel tank is filled with heat-insulating material.

To repair a malfunction of the heating element, the flange on which it is held is removed. A thermostat sensor with a thermostat is installed on the front panel of the product. With this device, Termex maintains the set temperature. The work occurs automatically. The required value is set by the regulator.

How to use the device is indicated in the instructions. The residual current device is mounted on the power cable. It is triggered by a current leak of 0.2 mA. A simplified electrical circuit of the heater is shown in Fig. 2, where the safety element is thermal protection. The drawing can be used to troubleshoot equipment operation.

Advantages and disadvantages

When considering the option of purchasing Termex brand equipment, they take into account not only its parameters, but also its advantages, which will allow you to learn about the positive qualities of the device, for example:

• many models;
• there is a large difference between devices in terms of functionality, parameters (power, heating intensity), dimensions, thanks to this it becomes possible to select and install a water heater taking into account the initial data (unoccupied space in the bathroom, method of connection to the pipeline, type of power source);
• reliability, due to which devices can operate for a long period;
• it is possible to choose a device with an enameled tank on the inner surface;
• Some models include an RCD, there is also a plug and a safety valve.

The disadvantages of Termex technology include the use of heating elements made of heating steel. They belong to a group of equipment in a more affordable price category. Water heaters without a protective layer inside quickly become covered with limescale, resulting in poorer heating.

The lack of protection in many tanks (low and medium price categories) is also considered a disadvantage. This measure reduces the cost of the product, but at the same time reduces its service life.

The boiler does not heat the water well. Causes and methods of eliminating them.

Have you started to notice that you are getting less hot water? Do you feel like your boiler is not heating the water well? Let's figure out what could be the matter:

1 The valve on the common riser is not completely closed.

The valve is either not closed or is not in working condition, thereby hot water goes to the neighbors below, and you get noticeably less water from the water heater. To reliably determine whether hot water is flowing to your neighbors, you need to check that the pipe below the valve is hot/warm. If the pipe is warm, then it is necessary to replace/close the valve.

2 The temperature setting on the thermostat was changed.

It often happens that children/wife/mother-in-law changed the temperature setting of the boiler without your consent. Thus, you begin to receive significantly less hot water. Check whether the temperature has remained at the same level or has changed downward?

3 The first heating element is switched off.

In boilers where two heating elements are installed, someone may have turned off one heating element without your consent. Check this, because one heating element heats the water twice as slowly.

Which water heater to choose - storage or instantaneous?

If you decide to approach the issue of heating water thoroughly, then it is better to go to the expense and choose storage water heater (links at the beginning of the article).

We planned to go swimming and wash the dishes in an hour - we turned it on, washed and shaved, and turned it off. And the water will cool for a long time (several hours), it can be used without consuming electricity.

If you need hot water here and now, or are limited in funds, or have nowhere to put this huge tank, then, of course, it is better to choose a compact, instantaneous water heater. But here you need to take a special approach to the power supply, which will be discussed below.

Turn on Thermex

Depending on the design of the water heater, some steps may vary. This mainly depends on the type of device - flow-through or storage. Meanwhile, there are several basic principles that are applicable to any type of water heating equipment, including not only the Thermex brand.

The universal instructions for turning on the boiler consist of three steps:

1. The first step is to shut off the supply of hot water from the central water supply. If there is a check valve on the hot water pipe, you still need to shut off this branch. This is done so that even with a slight leak, boiling water does not flow into the central line.
2. In order to displace air from the system, the hot water tap on the device is opened, then the mixer is opened and cold water is supplied. After the water flow begins to flow smoothly, the mixer is closed and the boiler is filled with water.
3. The last step is to connect the device to the network, set the required values ​​and wait about an hour before using it.

Instantaneous water heaterSource cdn.amzu.ru

With flow-type heaters, the procedure is similar, except that boiling water will flow almost immediately.

An important step in operating a boiler is checking its functionality. When connecting to the network, you need to make sure that all indicators are illuminated. Measure the initial temperature of the water in the mixer. After about 20 minutes of operation of the device, take another control temperature measurement, making sure that heating is taking place. On devices with a touch panel, manipulations with the thermometer are not required; all data is displayed on the screen.

Boiler protection system

A direct-flow water heater has several types of protection, which can be triggered if it fails and can protect the system from an accident. There are 3 levels of protection system:

1. Thermostat that controls the operation of the heating element.
2. A second thermostat that prevents water from boiling. It turns off the heating element when the temperature reaches 90°C. If the boiler does not turn on, this may be due to a breakdown of this device.
3. Burst valve to prevent rupture of the boiler and pipes when both thermostats fail. In this case, the valve allows water to be released from the system and prevents an accident.

All of the above systems must be in good working order and operational, otherwise it is not recommended to turn on the device to avoid its failure.

Safety instructions for working with a water heater

To achieve the required level of safety, the device must be grounded in accordance with current regulations for the installation of electronic devices.

When installing a water heater, it is prohibited to perform the following actions:

• You cannot connect a water heater to the network without first filling it with water.
• It is not permitted to dismantle the equipment while it is in operation.
• It is forbidden to use the water heater without grounding
• Do not connect the water pipe to the water heater without using a safety element
• When connecting the device, the pressure in the water supply system should not exceed 0.6 MPa
• You cannot use for installation of equipment those elements that are not included in the kit.
• The water in the system must be clean, free of impurities and other heavy elements that may adversely affect the operation of the device.
• The water from such a water heater is not food grade.
• Drain water from the water heater only when the power is turned off.

Most popular devices

The most popular heater is the Thermex System Manual. It complies with the GOST R 52161.2.35-2008 standard. Its power is enough to heat water at three points at once. The electrical circuit of the water heater is protected by a two-pole circuit breaker with a fuse. The delivery set of this equipment includes a technical description of the device and instructions for its operation. It also provides recommendations on how to connect the heater to the water supply system. Water heater instructions help with installation and provide information on proper use.

The Thermex Stream Manual flow heater is also very successful. The electrical diagram explains the operating principle of the equipment. It shows which parts provide the main workflow. In addition, the order in which each element is connected is indicated.

When purchasing a product, a sales consultant will explain how the electrical circuit works and tell you how to make the necessary connections. However, installation should still be carried out with the participation of a qualified specialist who will perform the work quickly and efficiently, observing all instructions related to the required electrical safety standards.

Troubleshooting and disassembly

Then the bottom cover is removed to access the heating elements

You need to be careful here because the entire electrical part of the water heater is hidden under the cover. It should be noted that sometimes the screws are covered with a label on top

Before you start dismantling the thermostat, it is better if you take a photo or sketch the connections.

The following sequence follows:

the contacts of the heating element are disconnected; the fastons are released from the thermostat contacts; the nut holding the thermostat is dismantled and it is put away; the thermostat sensors are removed from the heating element tubes; unscrew the nuts of the heating element fastening strip; The heating element is carefully removed from the unit body; The heating element is checked by external inspection for the integrity of the shell; The heating element is called by a tester for open and short circuit.

Specialist's note: in case of a break, the tester will show infinite resistance, in case of a short circuit - zero.

Electrical diagram of the thermomex system

Page 8

• Image
• Text

Electrical diagram of EWH THERMEX SYSTEM

Rice. 5

M - flow sensor, P - power control relay,

T1 - temperature sensor, T2 - temperature sensor with mechanical activation, heating elements1, heating elements2 - electric heating elements,

N - neon indicator, b - Phase,

N - Zero,

E - Earth.

The manufacturer reserves the right without prior notice

make changes to the design and electrical circuit of the device to improve its performance characteristics (Fig. 5).

Basic methods

To drain water from the boiler, you need to provide air supply inside the tank.

There are several ways to drain water from a water heater. Whichever of them is used, you first need to disconnect the device from the network, and then leave it for a certain time so that the liquid in it cools down.

While the water cools, everything necessary to drain it is prepared. You can use a bucket or hose. Its end is lowered into the toilet or bathtub, and then secured so as not to hold the hose all this time. The draining process itself lasts about 20 minutes. Next, turn off the cold water supply. Open the hot water tap on the mixer in order to reduce the pressure in the boiler and allow air to enter the tank.

Finally, connect the drain hose and open the valve on the cold water pipe.

Draining process:

1. First, before work, you need to turn off the electrical device from the network.
2. Then wait a certain time so that the liquid in the boiler tank can cool to a safe temperature, which will reduce the risk of possible burns during the process of draining the water.
3. Next, the cold water supply to the device is shut off.
4. Afterwards, you need to open hot water on the mixer, or turn the lever to the desired position to remove the pressure inside. You need to wait until all the liquid comes out of the pipe.
5. The next step is to unscrew the tap located on the hot water pipe in order to ensure the passage of air into the tank.
6. Next, you just need to open the drain valve, which is located on the cold water pipe leading to the boiler, and, by connecting the hose responsible for drainage, release all the liquid into the sewer.
7. Finally, make sure that all the water has completely drained out of the tank.

How to drain water from a Thermex water heater?

1. Turn off the cold water supply tap.
2. Then turn off the hot water tap on the mixer.
3. Afterwards you just need to wait for the water to stop flowing. Draining takes approximately one minute.
4. Next, the tap is turned on.
5. Then, using an adjustable wrench, unscrew the cold water supply nuts to the check valve, which are located below it. Fears that the boiler will start to leak are groundless, since the design is specially designed in such a way that it does not allow hot water to penetrate into the cold pipe.
6. Then the check valve is twisted, having previously prepared the drain hose into the sewer. After this action, water may flow out of the pipe. Therefore, you need to quickly attach the hose to the pipe.
7. The next step is to unscrew the nut on the hot water pipe. After this, air will enter the system and the liquid will begin to flow into the hose. If this does not happen, you need to “clean” the hose.

From an Ariston water heater

1. The mixer tap and the water supply tap are screwed on.
2. The shower hose and the safety valve of the outlet tube are unscrewed.
3. The hose that supplies water is unscrewed and directed into the tank. Water will begin to flow out of the inlet pipe.
4. Unscrew 2 plastic nuts of the outlet and inlet pipes.
5. The mixer handle cap is disconnected, then the screw is unscrewed, the handle and the plastic gaskets around it are removed.
6. The boiler body is removed from the tank, towards the mixer, without removing it completely.
7. Using a hexagon, the metal plug on the top of the mixer is unscrewed.
8. The liquid drains completely from the hole where the plug was located.

Considering the fact that water heaters are used only for a few weeks or days, when the hot water is turned off, usually in the summer, most people wonder whether it is worth draining the liquid from the boiler if it is not used for a long period.

There is no definite advice on draining liquid from a water heater, as it depends on the current situation. If the boiler is broken and does not perform the heating function, then the liquid does not drain. Then you should contact the service center, in particular if the device has a warranty card.

In general, before using any household appliance, including a water heater, you must carefully read all the technical documentation supplied with the device, since it is often there that the answer to the question is it necessary to drain the liquid from the boiler during a long period of inactivity .

Boiler treatment before assembly

After the cause of the heater malfunction has been determined, the necessary spare parts are purchased.

Before installing a new heating element, thorough cleaning of the water heater tank is highly recommended.

This must be done as carefully as possible so as not to damage the inner surface. It is also necessary to inspect the magnesium anode; most likely it will also have to be replaced. In general, there is a recommendation that the anode needs to be replaced annually.

You may also be interested in an article about Termex instantaneous water heaters.

Read the article about installing and connecting a Thermex water heater yourself here.

After reading this article, you will learn how to properly disassemble a Thermex water heater.

Next, a new heating element is installed.

It should be noted that the new element must correspond as much as possible to the burnt one, especially in the part in which it is attached to the body of the water heater, and the number of tubes for the thermostat sensors must also correspond to the old one.

Assembly is carried out in the following sequence:

• a silicone gasket is installed, it is best to install a new one, its cost is quite low, and a fresh gasket will ensure the tightness of the connection, otherwise there may be leaks;
• the magnesium anode is inserted into the appropriate place on the heating element;
• the assembled heating element is inserted into its place in the device body;
• the fastening bar is put in place, the heating element is pressed against it and the nuts are tightened;
• Thus, assembly occurs as a mirror image of dismantling. Next, using a photograph, the electrics are connected and the lid is screwed on.

The fully assembled water heater is returned to its place on the wall. Here, again, it is advisable to do this operation together. Moreover, installation is a slightly more complex operation than removal.

Then the tank is filled with water, and you need to make sure that there are no leaks. If everything is normal and no leaks are observed, you can perform a test run. The water heater is ready for use again.

You can read the article on repairing Ariston water heaters by clicking here: https://teplo.guru/vodonagrevateli/ariston-remont-svoimi-rukami.html

Watch the video in which an experienced user explains in detail how you can repair a Termex water heater with your own hands:

Features of Termex water heaters

Wall-mounted water heater Termex

Water heaters differ according to the following criteria:

• storage or flow;
• the material from which the tank is made;
• control option;
• installation method;
• connection to water supply;
• volume;
• additional options.

Instantaneous water heaters have several disadvantages - high energy consumption and fragility of the heating element. These are practically disposable products that cannot withstand long breaks in operation. Therefore, it is not recommended to use flow-through devices unless absolutely necessary.

There are three types of materials from which the internal housing of the EWH is made:

• bioglass porcelain;
• stainless steel;
• glass ceramics.

Practical operation has shown that stainless steel devices have proven themselves better: they are more resistant to mechanical damage and can be easily repaired. When you independently replace heating elements and fix threaded connections, the body made of bioglass porcelain or glass ceramics cracks.

Control options:

• Hydraulic is a change in equipment operating modes through pressure sensors. The heating element turns on when the tap is opened and turns off when closed. It is equipped as standard with two heating positions. High water pressure does not always warm up at maximum heating.
• Mechanical - occurs through a mechanical thermostat. It works on the principle of an iron.
• Electronic - all settings are changed via a touch differential, with an expanded range of functions and a line of protection.

Installation method:

• wall-mounted vertical;
• wall horizontal;
• floor.

The floor arrangement is typical for volumes over 100 liters.

The connection to the water supply can be from below or from above. Here everything depends only on the location of communications and ease of use.

Advantages of Ariston water heaters – manufacturer’s version

The Ariston company reports the following advantages of its products:

• The breadth of the range covering all the needs of the household sector. And this is true - Ariston produces more than seven dozen models of storage water heaters, the capacity of which varies from 10 to 200 liters.
• High quality components. The manufacturer uses proprietary corrosion protection. Mounts magnesium anodes even in budget models. Supplies standard check and safety valves, as well as taps for draining water. Uses environmentally friendly polymer as insulation.
• Energy efficiency of devices. Models with a tank capacity of up to 0.1 m3 are equipped with a 1.0-1.5 kW heating element. Therefore, the operation of Ariston boilers does not overload the family or personal budget. After all, the lower the power of the heating element, the “easier” the payment for light.
• Ease of operation of the unit. Budget models are equipped with a mechanical regulator. Expensive boilers are equipped with digital control units. Moreover, any water heater has an internal temperature controller that optimizes heating in the selected operating mode.

Water heater Ariston ABS PLT R 30 V SLIM

Advantages of Ariston according to customers

Owners of Ariston boilers talk about the following advantages:

• Possibility of choosing a budget model - some 80-100 liter boilers cost no more than $90.
• Easy maintenance - the mounting hole of the heating element is equipped with a flanged pipe, which facilitates the process of assembling/disassembling the heating unit.
• Good heat resistance of the housing - a switched-off boiler cools down by 10-12 °C per day.
• Acceptable heating rate - relatively warm water can be obtained after 25-30 minutes from the moment the boiler is connected to the network.

Disadvantages of Ariston boilers

Ariston boiler owners include the following facts as obvious disadvantages of water heaters from this company:

Water heater Ariston AM 60SH2.0 Ei3 FE

• The location of the temperature regulator is inconvenient - on some models it is located at the bottom, under the lid.
• The absence of a standard reducer that reduces the pressure in the water supply to 6 atmospheres - the boiler can withstand only 7 bar, although the peak load is 16 bar.
• Problems with the check valve - some owners report cases of leaks.
• The mount is externally flimsy - there are complaints about the standard screws and the number of brackets - there are only two of them. Although no one talks about the facts of the water heater “falling off” from the wall.
• The lack of a standard power cable complicates the installation process, forcing the user to use an automatic fuse instead of a plug and socket.
• Manufacturing of the tank body from ferrous metal. As a result, the corrosion resistance of the boiler depends on the quality of the enamel or the Ariston AG+ proprietary coating. However, no one has any special complaints about the quality of corrosion protection.

How to disassemble a Termex 10 liter water heater

Boiler Termex

Why disassemble a water heater:

• to replace the thermostat;
• to replace or reset the thermal fuse (only for certain models);
• to replace the magnesium anode (anti-corrosion element);
• to replace a faulty heating element;
• for cleaning scale and dirt.

For convenience, this can be done right at the installation site. No dismantling required. There is no need to use special tools; a set of screwdrivers and open-end wrenches is enough.

Before starting work, you must disconnect the device from the network. Unplug the plug from the socket and turn off the water.

Disassembly is carried out from the front side:

1. Remove the front panel (unscrew the screw and lift the front panel up).
2. Disconnect the electrical wire from the heating element, thermal fuse, thermostat, and power cord.
3. Pull out the thermocouple, but do not disconnect it from the thermostat.
4. The thermal fuse is located on the flange next to the heating element - unscrew two screws to replace the thermal sensor.
5. Unscrew the 5 nuts on the flange securing the heating block and pull it out.
6. To rinse from scale and dirt, disconnect the mixer, cover the hole with your palm and turn on the water to maximum. It is necessary to rinse until there is clean water.

Termex water heaters received good feedback from our consumers. Inexpensive maintenance, low cost - all these are excellent characteristics for a future purchase.

Do-it-yourself Termex boiler repair

Before you begin the repair, first gather the necessary tools: a set of wrenches, an adjustable wrench, electrical tape, various screwdrivers, pliers. After this, turn off the water by closing the inlet and outlet valves to the water heater. Then drain the water from the boiler tank and disconnect it from the power supply .

The next step is to remove the protective cover. If you have a vertically located boiler, then the lid is located at the bottom, and in the case of a horizontally located one, it is on the left or in front.

Replacing the heating element

First, perform all of the above steps and remove the tank cap.

It is worth noting that most Thermex models have not one, but two heating elements. Therefore, it is imperative to remember how and in what sequence the parts need to be connected . It’s better to photograph the whole process.

To remove the heating elements from the Thermex water heater, remove the top cover by unscrewing the bolt; disconnect all plugs and unscrew the bolts securing the heating elements.

The heating element itself is turned off as follows:

• After removing the cover, find the protective thermostat, remove the tips from it;
• also remove the tips (3 pieces) from the heating element;
• cut the plastic clamp;
• Unscrew the screws, removing the sensor;
• now disconnect the cable and unscrew the four screws;
• then you need to dismantle the nut on the clamping bar and pull out the heating element.

Do not forget that the heating element does not always need to be changed. If the water in the tank still heats up, but it happens slowly, then, most likely, scale has formed on the heating element. Then dismantle it and descale it. Then install. The problem should go away. Also, do not forget that it is advisable to clean the heating element with chemicals rather than scrape off the dirt. In the latter case, there is a possibility of damage to the part.

Features of gas connections

When connecting gas stoves, water heaters and other types of equipment, flexible hoses are also used. Unlike water models, they are yellow and are not tested for environmental safety. For fixation, end steel or aluminum reinforcement is used. There are the following types of devices for connecting gas appliances:

• PVC hoses reinforced with polyester thread;
• made of synthetic rubber with stainless steel braid;
• bellows, made in the form of a corrugated stainless steel tube.

The Santekhkomplekt holding offers engineering equipment, fittings, plumbing fixtures and devices for connecting them to communications. The assortment is represented by products and materials from well-known foreign and domestic manufacturers. Discounts apply for bulk purchases, and product quality is confirmed by standard certificates. For information support and assistance, each client is assigned a personal manager. The ability to arrange delivery within Moscow and to other regions of the Russian Federation allows you to quickly receive the purchased goods without unnecessary hassle.

How to install and connect the device

All connections must be made by qualified installers. A tank with a capacity of up to 150 liters should be placed vertically, with inlet and outlet pipes directed downward.

The tank must be at least 30 cm away from the vertical surface. The room must have good waterproofing, and if it is not there, then it is necessary to install a protective bath under the heater, which has a drain into the sewer.

Valves are installed on the pipes, which are isolated from water with Teflon tape or tow. Connection of cold and hot water pipes is carried out using metal hoses with rubber gaskets.

The Termex boiler is connected to the electrical network using a cable and a 40 A circuit breaker. The socket must have a grounding petal.

Trial run

Boiler installations are often carried out by professionals. They are the ones who should carry out a test run immediately after installation. But if you installed everything yourself, then be sure to do the following.

1. Make sure that the water heater is installed efficiently, according to its instructions.
2. Inspect it for leaks. Fill with water after disconnecting from the power supply.
3. To see when the tank is full, open the hot water valve. If water flows, the tank is already full.
4. Close the valve and examine the outside of the device.
   Second boiler connection diagram

Only after this can you safely connect the boiler to the power supply and set it to the desired temperature.

Care recommendations to avoid frequent breakdowns

The equipment requires preventive inspections. The first enemy of boilers is scale, so install a water filter. To reduce heat losses, the water heater is mounted close to the mixer.

Basic recommendations:

• connect the boiler after filling with water;
• dismantling and disassembling of the device is carried out with complete disconnection from the power source;
• connection is made in the order specified in the instructions;
• Hot water is drained when the boiler is turned off;
• the structure is connected to the water supply with a shut-off device in front of it.

It is recommended that the connection and installation of the electric water heater be carried out by a specialist.

Operating principle of an electric heating tank

The operation of the water heating tank is based on the principle of convection:

Cold water always enters the storage water heater from below, and when heated, it rises upward, where the hot water intake tube is located.

• cold water enters the tank through the inlet tube;
• the heating element turns on and heats the water to the set temperature (there is a regulator on the dashboard with which the temperature is set);
• thanks to convection, hot water rises independently to the top of the tank;
• the hot water outlet tube is located at the top of the device, through which the heated liquid enters the pipeline;
• when the water temperature in the tank drops, the thermostat turns on the heating element, and when it reaches the maximum, it turns off.

Both in the 80-liter Thermex water heater and in the 50-liter Thermex water heater, do-it-yourself repairs are carried out in the same way. Their design is identical, only the tank volumes differ.

Characteristics and operating principle

The outer casing of the device is made of high-quality material, and the inner part is made of stainless steel combined with titanium, resulting in high resistance to rust and durability of the device.

The remaining space between the body and the internal tank is covered with a special sealed material (polyurethane foam); this is a very environmentally friendly and modern method of thermal insulation.

There is a temperature sensor on the outside of the case. Water is heated thanks to heating elements located inside the tank, the temperature of which is controlled by a thermostat. The thermostat will maintain the set temperature.

For safety, water heaters are equipped with a function to automatically turn off the device when the maximum permissible temperature is reached - 95 degrees.

Error codes

Many Thermex water heaters are equipped with an electronic display that shows the main equipment error codes. Knowing how to read these emergency symbols can help you save big on professional repairs. The following errors occur most often.

• E1 or Vacuum - the storage tank cannot be completely filled with water when the heating element is turned on. Solution: turn off the heating element and wait until the container is full, and then turn on the heating element again.
• E2 or Sensor – the temperature sensor does not work. Solution: Disconnect the boiler from the power supply for 30 seconds and then restart the equipment.

E3 or Over Heat - the water heating temperature has risen to a critical level (95 degrees or more). Solution: Press the safety thermostat button.

Thus, if you notice problems in the operation of the Thermex water heater, this is not a reason to immediately contact the service center - armed with the above recommendations, a number of malfunctions can be eliminated yourself. But when starting repairs, remember that the main thing is to soberly assess the scale of the breakdown and not exaggerate your strength, so as not to provoke even bigger problems.

Verdict

In most cases, the Thermex water heater can be repaired independently, since it has a fairly simple design and operating principle. The main causes of failure are a non-working heating element or scale . This is what you need to pay attention to first. If the boiler does not heat the water well, do not rush to run to the store and buy a new heating element. Perhaps the old one is simply covered with dirt and just needs to be descaled. If the water heater leaks at the joints or the water in it cools down quickly, you will have to buy a new device.

2017-02-19 Evgeniy Fomenko

Let's look at the standard design of a Termex water heater with a volume of 50 liters and important differences depending on the model.

Like all boilers, it consists of the following basic elements:

1. Frame . Made from enameled steel, stainless steel or heavy-duty plastic. The shape is cylindrical or flat flattened, as in Flat series water heaters. At the end there is a removable plastic cover, which is removed in case of repair of malfunctions or maintenance of the device.
2. Tank made of proprietary stainless steel with the addition of ASTN+ titanium, or steel coated on the inside with glass ceramics using Oxygen Tree oxygen-free spraying technology. Thin boilers have two cylindrical tanks connected to each other using Double Tank technology.
3. Pipes for cold water input and hot water output. The first is short, ending at the bottom, the pipe from it is marked on the body with a blue plastic ring.

The second is long, ending at the top of the tank, so that, first of all, the maximum heated liquid flows out. The pipe from it is marked with a blue plastic cover on the lid.

• Thermal insulation made of polyurethane foam. Located under the shell. Serves to maintain water temperature for a long time in standby mode. When cut, it can reach a thickness of 10 cm.
• A heating element . It is located at the bottom, secured with a flange with six nuts. Contacts with water or dry type, additionally coated. Some devices have two heating elements installed, which can work either separately from each other or together.

Inside the copper shell is a nichrome spiral, which converts electrical energy into heat. A magnesium anode is screwed in nearby, which protects all elements of the boiler from corrosion. It is also mounted on a flange.

• Thermostat and thermostat, which turn off the heating elements when the water reaches the required temperature. The thermostat is also located in the flange.
• Control Panel . It contains buttons to turn on and control the power of the heating elements and water temperature. Also, each water heater has a display that shows the temperature of the liquid or a mechanical indicator.

  
  Thermex boiler control panel

• Electrical cord. May include a residual current device to protect users from electric shock.
• There are two strips on the back for wall mounting. The device comes with four anchors.

A GP check valve is installed at the cold water inlet, which is also included in the kit. The assembly diagram for each model may vary minimally. It is printed in the instruction manual.