Main types of gas boilers Mora Top - characteristics and instructions

Wall-mounted gas instantaneous water heaters VEGA MAX

VEGA MAX is designed as an ideal replacement for old types of water heaters Mora 370, 371, 5502 and 5505. The connecting dimensions remain the same - this significantly saves time and costs when replacing an old water heater. The wall-mounted gas water heater is designed to heat water in homes and offices with a thermal power of 17.3 kW, with a water flow rate of 10 liters per minute.

Wall-mounted gas instantaneous water heaters VEGA

with electric ignition

VEGA instantaneous water heaters are completely new “star” products from the Czech company MORA-TOP. VEGA, one of the three bright stars of the summer-autumn triangle, is many times brighter than the Sun. Thanks to their minimal dimensions, modern design and exceptional technical parameters, VEGA water heaters exceed all similar products on the market.

Wall-mounted gas instantaneous water heaters VEGA E with
electric ignition
VEGA E instantaneous water heaters are completely new “star” products from the Czech company MORA-TOP. Water heaters are designed for heating domestic water at home and in businesses. Equipped with a battery igniter. The source used is 2 K20 1.5 V batteries. Thanks to their minimal dimensions, modern design and exceptional technical parameters, VEGA water heaters exceed all similar products available on the market.

Wall-mounted gas instantaneous water heaters VEGA

VEGA instantaneous water heaters are completely new “star” products from the Czech company MORA-TOP. VEGA, one of the three bright stars of the summer-autumn triangle, is many times brighter than the Sun. Thanks to their minimal dimensions, modern design and exceptional technical parameters, VEGA water heaters exceed all similar products on the market.

Wall-mounted gas instantaneous water heaters VEGA E with
electric ignition
VEGA E instantaneous water heaters are completely new “star” products from the Czech company MORA-TOP. Water heaters are designed for heating domestic water at home and in businesses. Equipped with a battery igniter. The source used is 2 K20 1.5 V batteries. Thanks to their minimal dimensions, modern design and exceptional technical parameters, VEGA water heaters exceed all similar products available on the market.

The issue of creating an autonomous water supply has always been relevant for owners of both country cottages and apartments and houses. Increasing costs of utilities, regular interruptions in hot water, lack of a central water supply line are not all the problems that a user may encounter. But there is an excellent solution - the Mohr gas water heater. The installation of this unit solves all of the above problems and ensures an uninterrupted supply of hot water.

Radiator contamination

You can find out complete information on the selection, operation and maintenance of gas water heaters (instantaneous water heaters) from all manufacturers if you go.
In addition to specific information on the site, you can also study specific problems from other people on this topic who have already purchased a gas water heater or instantaneous water heater and thus avoid them. You will find a regularly updated list of such problems and their solutions.

The radiator is made up of metal plates with a small distance between them. Since they are exposed to the flame from the burner, soot accumulates between them over time.

Gas water heater radiator

This can be seen from the yellow color of the fire. The flame can be directed not in the upward direction, but to the side, thereby heating the casing. The water takes longer to heat up even when the column is running at full power, and black soot pours out from under the device.

For repairs, you should remove the column shell, disconnect the heat exchanger pipes and completely dismantle it, first covering the burner with a rag so that it does not become clogged. The most convenient way to clean the radiator is in the bathroom under running water. If necessary, it is left to limp in a container with chemicals. At the end, it is cleaned with a soft long bristled brush, dried and installed back.

Scale deposits in the heat exchanger

Mora heat exchangers are made of high-quality copper, 1 mm thick. The water heats up inside the tubes and scale accumulates on their walls. This leads to an increase in heating time and a decrease in pressure. The main sign of clogging of the heat exchanger pipes will be that water flows actively from the tap, but the pressure through the column is weaker.

To clean scale yourself, you should remove the casing from the water heater, drain the water and unscrew the union nuts from the heat exchanger outlets. After this, a special liquid for dissolving salts, which is sold at a hardware store, is poured into the tubes using a hose. Instead, you can use a solution with citric acid or vinegar. You will need to wait a few hours for complete cleaning.

For prevention, the heating temperature should be set to no more than 50 degrees. If the temperature is higher, scale deposits especially actively.

A little about the company

MORA-TOP began its 185-year history as a subsidiary of MORA MORAVIA AS. And only in 2003 it became independent. In the spring of next year, construction of the plant began in the Czech town of Unicov. The capacity occupied 5,000 square meters and was built in less than a year, so that in the spring of 2005 the world saw the first Mora instantaneous gas water heater produced at the new factory.

Today the company has a fully established technological chain for the production of equipment, including:

• Technology for processing copper and manufacturing heat exchangers, as well as stamping, degreasing stage, soldering and painting.
• Production of structural thermoelements.
• Assembly of finished products within the assembly line.
• Mandatory testing of devices.

Preventative repair work

For proper operation, the Mora water heater requires regular maintenance:

• From time to time it is necessary to replace the batteries. If they sit down, the spark continues to be produced, but its power is not enough. The standard size of the nutrients is R20 at 1.5 volts. The container with them is located at the bottom of the device.
• If you have hard and dirty water, you should clean and change the strainers on time. They are installed on the cold water inlet pipe. Failure to do this will result in a decrease in pressure over time.
• The igniter is clogged. In semi-automatic models with a wick, the jet becomes clogged with dust over time. You can clean it with a thin soft wire.

If after diagnostics you cannot find the cause of the malfunction, call a specialist.

This instruction manual in Russian is intended for the Mora-Top Meteor heating boiler; it describes the principle of operation and the main points of operating the device.

The manufacturer strongly recommends that you carefully study these instructions before turning on the heating boiler.

Control Panel

The control panel in boilers MORA 5118, 5120, 5121, 5122, 5124, 5125 is located in the lower part of the boiler behind the casing and will be accessible if the casing is lifted up approximately 100 mm.

ON/OFF button

When you press the “ON/OFF” button, the boiler turns on or off. When the boiler is turned on, the button will light up.

Heating water temperature adjustment knob

Designed to set the required heating water temperature in the range from 30 to 80°C. If the room thermostat is functioning, the heating water temperature is set to the maximum value.

“SUMMER-WINTER” mode switch (installed only on combination boilers)

When the switch is set to the “WINTER” position, the boiler is prepared for operation - heating heating water or domestic water. When the switch is set to the “SUMMER” position, the boiler is ready only for the process of heating domestic water. This mode is used mainly in the summer, when there is no need to heat the premises.

Thermometer

Shows the temperature of heating water leaving the boiler.

For boilers MORA 5119 and 5123

— the thermometer is installed on the boiler casing — the “ON/OFF” button and the heating water adjustment button are located on the left, under the boiler

Instantaneous water heater

Mora Top geysers are assembled in our own production facility in the Czech Republic. These are reliable and high-tech units for installing a hot water supply system for an apartment or cottage.

Water heaters are characterized by high efficiency, efficiency is 92%.

Their operation is almost silent, which allows them to be installed anywhere. The fuel for them can be either natural or liquefied gas.

The Mora line of speakers consists of the following models:

1. VEGA 10 (options 10 E, 10 MAX, 10E MAX) – power 17.3 kW, water flow 5 – 10 l/min. The series is produced as a more modern replacement for models 370, 371, 5502, 5505.
2. VEGA 13 (option 13 E) – power 22.6 kW, water consumption 6 – 13 l/min.
3. VEGA 16 (option 16 E) – power 26.4 kW, water consumption 8 – 15.2 l/min.

Important to know: speakers with electric ignition require periodic battery replacement!

The power of these water heaters is sufficient for the simultaneous operation of 1 - 3 water dispensing devices. All models are available in compact wall-mounted housings. The difference in the model options is the presence of electric ignition from built-in batteries, the letter “E” in the marking.

Wall mounted

Wall-mounted boilers “Turbo” with a heating capacity of up to 24 kW are produced with a closed combustion chamber, and “Combi” for combined heating and hot water supply. The device meets all the latest requirements of domestic and European standards regarding the safe and economical operation of heating units.

Note! The main innovation is the control unit

• protecting the health of residents and the safety of property;
• user function - for setting comfortable modes in heated rooms;
• function of ensuring the technological process of the unit.

The unit has a wide range of heat load adjustment - from 30% to 100%. Initially, the Mora gas boiler heats the coolant in the circuit at maximum mode and then switches to economy mode.

Note! The boiler has protection against frequent switching on/off of the burner device at low operating parameters, when the required heating load is below the lower limit, for example, a sharp increase in outside air temperature at the beginning or end of the heating season. Structural advantages of wall modifications:

Structural advantages of wall modifications:

• thermostat for automatically adjusting the operation of the system according to the internal air temperature;
• quiet operation of the burner device during start-up and operation;
• high-quality preparation of hot water with a minimum flow rate of 3 l/min;
• ultra-fine temperature control of the DHW circuit, regardless of the volume and pressure of the source water;
• easy accessibility of the internal elements of the boiler for maintenance and repair;
• LCD display of control unit for setting;
• automatic fault diagnosis.

• built-in processor with software for diagnostic monitoring of all units of the unit;
• protection against the release of gas to the burner at low pressure or lack of water in the circulation circuit;
• protection against low DHW flow rates;
• ionization fuse for gas leak control;
• flame lift-off control.

Additional Information! The boiler software includes the LEGIONELLA function, which allows you to include a cylinder water heater in the system.

Radiator contamination

You can find out complete information on the selection, operation and maintenance of gas water heaters (instantaneous water heaters) from all manufacturers if you go.

In addition to specific information on the site, you can also study specific problems from other people on this topic who have already purchased a gas water heater or instantaneous water heater and thus avoid them. You will find a regularly updated list of such problems and their solutions.

The radiator is made up of metal plates with a small distance between them. Since they are exposed to the flame from the burner, soot accumulates between them over time.

Gas water heater radiator

This can be seen from the yellow color of the fire. The flame can be directed not in the upward direction, but to the side, thereby heating the casing. The water takes longer to heat up even when the column is running at full power, and black soot pours out from under the device.

For repairs, you should remove the column shell, disconnect the heat exchanger pipes and completely dismantle it, first covering the burner with a rag so that it does not become clogged. The most convenient way to clean the radiator is in the bathroom under running water. If necessary, it is left to limp in a container with chemicals. At the end, it is cleaned with a soft long bristled brush, dried and installed back.

Replacing the membrane

If the gas does not turn on or the burner flame is very weak, the membrane in the water unit may be stretched or damaged. Water may also start leaking from the water block. In a Mora water heater, the water unit is located horizontally.

To get to the rubber membrane, first unscrew the union nuts for water supply and outlet from below. Then the heat exchanger tube going to the rear wall is unscrewed. Use a star screwdriver to unscrew the four bolts and remove the cover of the water block. Three springs are removed and a new membrane is installed.

It is important to buy a membrane designed specifically for your model, as there are now many configurations available. After replacement, all components are assembled in the reverse order, and the operation of the device is tested.

Replacing the membrane in a gas water heater

Instructions for connecting and operating gas boilers Mora TOP

Before starting to operate the boiler, the manufacturer urgently requires service personnel to study the document “Mora Top” - gas boiler, instructions.

Installation and commissioning are performed by representatives of a service organization that is certified by the manufacturer. After completing the entire range of commissioning work, they must make an entry in the warranty card; without this, the warranty will be invalid. Start-up activities must be carried out in accordance with the requirements of regulatory documents on safety in the gas industry of the Russian Federation.

When commissioning, the specialist must complete the following steps:

• checking the tightness of the water and gas connections, the reliability of the electrical wiring and grounding circuit;
• commissioning activities for the boiler;
• diagnostics of the performance of all functions of the unit;
• checking the operation of the automation and protection unit;
• Conducting training for users on the rules for servicing and controlling the operation of the heating unit.

Standards for installation and connection of the Mora column

The basic requirements are listed in the technical data sheet of the device and the operating manual. Violations made during installation lead to refusal of warranty service for the boiler. Requirements:

• The connection must be carried out by qualified specialists with the appropriate license and work permit. After installation, a report is drawn up (the form is in the device passport) and a stamp is placed indicating that the water heater is put into operation.
• A coarse filter is installed on the supply pipeline; in some cases, at low pressure, a booster pump is connected.
• The column must not be installed in rooms with high humidity (bathroom, toilet), directly above a gas stove or refrigerator.
• The room used for the boiler room must comply with the standards described in SP and SNiP.

Maintenance of Mora Top geysers should be carried out at intervals of at least 1-2 years.
Independent or unqualified repairs lead to removal of the water heater from the warranty, which lasts 3 years from the date of commissioning. Repairing a Mora gas water heater with your own hands will inevitably lead to a refusal of free service. If a breakdown occurs after the warranty expires, call a gas technician. It is better not to try to repair the water heater yourself.

Common breakdowns and troubleshooting of the Mora gas water heater:

• The main burner does not turn on - the reason is dead batteries, poor water pressure, lack of sufficient oxygen in the room.
• Presence of a leak - the rubber membrane of the water reducer has broken, corrosion has corroded the heat exchanger (a copper coil is installed on the Mohr column, there will be a green coating in the place of leaks).

2017-03-09 Evgeniy Fomenko

Let's look at the typical breakdowns of the Mora gas water heater and the necessary do-it-yourself repairs. Before troubleshooting, close the valve on the pipe through which gas is introduced into the water heater. Even if a non-gas part breaks, there is a chance that it will get caught.

Technical characteristics of gas boilers "Mora TOP"

Wall mounted

Wall-mounted boilers “Turbo” with a heating capacity of up to 24 kW are produced with a closed combustion chamber, and “Combi” for combined heating and hot water supply. The device meets all the latest requirements of domestic and European standards regarding the safe and economical operation of heating units.

Note! The main innovation is the control unit. Functionality:

Functionality:

• protecting the health of residents and the safety of property;
• user function - for setting comfortable modes in heated rooms;
• function of ensuring the technological process of the unit.

The unit has a wide range of heat load adjustment - from 30% to 100%. Initially, the Mora gas boiler heats the coolant in the circuit at maximum mode and then switches to economy mode.

Note! The boiler has protection against frequent switching on/off of the burner device at low operating parameters, when the required heating load is below the lower limit, for example, a sharp increase in outside air temperature at the beginning or end of the heating season. Structural advantages of wall modifications:

Structural advantages of wall modifications:

• thermostat for automatically adjusting the operation of the system according to the internal air temperature;
• quiet operation of the burner device during start-up and operation;
• high-quality preparation of hot water with a minimum flow rate of 3 l/min;
• ultra-fine temperature control of the DHW circuit, regardless of the volume and pressure of the source water;
• easy accessibility of the internal elements of the boiler for maintenance and repair;
• LCD display of control unit for setting;
• automatic fault diagnosis.

Automatic safety:

• built-in processor with software for diagnostic monitoring of all units of the unit;
• protection against the release of gas to the burner at low pressure or lack of water in the circulation circuit;
• protection against low DHW flow rates;
• ionization fuse for gas leak control;
• flame lift-off control.

Additional Information! The boiler software includes the LEGIONELLA function, which allows you to include a cylinder water heater in the system.

Description of boiler functions

With connected room thermostat

The boiler will start working when it receives a signal from the room thermostat about a decrease in temperature in the heated rooms. After receiving the signal, the pump accelerates and the gas fittings open the flow of gas to the main burner. Heating water flows from the pump to the heat exchanger, where it is heated and then enters the heating system. The heating water temperature is recorded by the heating water temperature sensor. Heating of heating water continues until the boiler is turned off when the desired (set) temperature in the heated rooms is reached. Thus, the process is repeated as long as the boiler is connected to the electrical network. The heating water temperature is set to the maximum value.

Without room thermostat

The pump runs constantly. The operation of the boiler is controlled by a control and regulation unit in accordance with the heating water temperature set by the User.

Process of heating domestic water (combined boilers)

Heating of domestic water has priority over heating of heating water.

The flow of water through the domestic water flow fuse will introduce the boiler into the process of heating domestic water when the 3-way controlled valve changes the direction of movement of the heating water, and it passes through the secondary heat exchanger, and from there back to the pump. From the heated heating water in the secondary heat exchanger, in accordance with the temperature set by the User, the service water is heated. By changing the burner power, the electronics system maintains the temperature of the domestic water at the selected level.

After the end of the selection of warm domestic water, the boiler will automatically switch to the heating process.

During the process of heating domestic water, the gas pressure supplied to the main burner changes so that the temperature of the domestic water corresponds to the set one, regardless of fluctuations in water flow under the influence of fluctuations in inlet pressure, i.e. increased water flow will cause an increase in gas pressure, and vice versa.

Boiler capabilities taking into account its power

Method of heating domestic water (standard boilers)

Boilers intended for heating can also be used to heat domestic water in the MORA storage water heater. The storage water heater is connected to the heating system, domestic water is heated with warm heating water ("WATER-WATER" system). If the boiler is installed together with a storage water heater, you can use the MORA 9510 connecting elements, which make it possible to carry out the installation and electrical connection of the devices without any problems.

Electrical connection diagram for storage water heater

Example of installation of a storage water heater

Boiler safety

Safe operation of the boiler is ensured by the following elements:

Electronic control and regulation unit

— ensures and controls the activity of individual boiler elements (pump, thermostats, 3-way controlled valve, flow sensor, etc.).

Heating and utility water flow sensors

- will not allow ignition of the main burner if there is insufficient water flow.

Emergency thermostat

— closes the gas supply to the boiler when the maximum permissible water temperature in the heat exchanger is exceeded.

Backdraft fuse (boilers with combustion products discharged into the chimney)

If the chimneys become clogged (even partially), which will allow combustion products to enter (leak) into the room, the backdraft fuse will register an increase in the temperature of the surrounding space and cause the gas supply to the main burner to close. The boiler can be put back into operation only after the fuse has cooled down, i.e. after approximately 10 minutes, by pressing the “RESET” button.

Pressure switch (boilers with exhaust of combustion products "TURBO")

If the pipes for removing combustion products become clogged (even partially), or fuel combustion deteriorates (below the established norm) under the influence of a decrease in fan speed (voltage drop in the electrical network), or the fan does not work, then thanks to the pressure switch the boiler will not turn on, so that combustion products did not accumulate in the closed combustion chamber.

The backdraft safety device or pressure switch must be functional during boiler operation and their functions must not be affected by anything (for example, a change in position).

If the backdraft safety device or pressure switch fails repeatedly, contact an authorized service organization to troubleshoot the problem and perform an operational test.

Floor models

The Mora floor-standing gas boiler is presented in more than ten versions, the main difference of which is the type of burner and firebox used:

1. Atmospheric burner. Mounted in the ELITE line of boilers - the best, admittedly, models of heating equipment. The burner device is made of high quality steel and is characterized by a long service life. For more convenient use, it is possible to connect an indirect heating boiler (for hot water supply) and install temperature sensors. Thanks to their technical characteristics, Mora's energy-independent floor-standing boilers are a good solution for providing heat to a cottage or private home.
2. Pressurized burner. It is available in closed type units. There is an automatic ignition lock, two separate circuits. The primary heat exchanger is made of steel, the secondary one is made of copper. Gas is consumed very economically, this is not difficult to notice when changing fuel. Conversion to liquefied gas is possible when replacing the burner device.

An overview of different types of burners for boilers is presented here

To increase performance and thermal output, experts recommend using antifreeze. The heat exchanger and internal structure are designed taking into account the use of this liquid as a coolant.

The Mora Top gas boiler has proven its efficiency and reliability, therefore it is an excellent solution for equipping houses outside the city with heat and hot water. The design does not have complex automation or energy-dependent components. Characterized by high performance.

Common boiler malfunctions and repairs:

The flame in the burner goes out when the unit starts;

A lot of soot is formed;

Loud popping noises are heard when the equipment is operating;

The boiler does not turn on and does not respond to the reset button;

The pressure in the heating system constantly drops.

If you have problems with the operation of your boiler equipment, call us, the specialists of our company will come to you urgently in order to repair heating boilers from any manufacturer in the shortest possible time. Specialists constantly improve their knowledge and increase their experience by going out to repair heating boilers of any degree of complexity.

AIS company always strives for fruitful cooperation with its clients. Personal approach to each client, discounts, competently performed complex work, guarantees for work.

The structure and internal design of Czech gas boilers Mora Top made it possible to create a new generation of heating equipment that optimally complies with European and domestic standards.

The Mora manufacturer's line includes mounted and floor-mounted units, differing in different technical characteristics, operating principles and performance.

Floor-standing

Atmospheric floor-standing boilers MORA SA 40 G are recommended for heating facilities located in areas with unstable power supply. Classic series models are equipped with a stainless burner device that operates stably even with low gas parameters. They belong to the class of cast iron boilers and have proven themselves to be reliable, inexpensive and fairly economical heat generators.

Note! According to buyers, today in Russia they are the most common among similar devices. The burner device is simple and operationally reliable

Its advantage is silent operation and low energy consumption. The developers have provided the Mora boiler with maximum resistance to frequent pressure changes in the gas main, including modes with low gas inlet pressure

The burner device is simple and operationally reliable. Its advantage is silent operation and low energy consumption. The developers have provided the Mora boiler with maximum resistance to frequent pressure changes in the gas main, including modes with low gas inlet pressure.

The longevity of the device is ensured by the inclusion of a cast iron heat exchanger, which does not suffer from low-temperature corrosion, like steel, and does not burn out, like copper. The unit has a burner flame control function using a thermoelement that prevents gas leakage. The backdraft fuse works as part of the protection system and prevents flue gases from entering the room. Electronic regulation with a temperature limiter in the boiler controls the level of heating of the circulating water, and in the event of overheating in an emergency, it will send a signal to the shut-off valve to shut off the flow of gas into the boiler and take it out of operation.

Built-in reliability features

Reliability of units of this design is ensured by the following boiler functions:

• Protecting the secondary boiler from scale formation by applying a special agent to the heating surface.
• Preventing water from freezing in the internal circuit of the heater.
• Guaranteed operation of the pump and three-way valve without jamming.
• Boiler overheat protection. After the gas supply is stopped, the pump will continue to circulate until the medium cools down to an acceptable level.
• Stable operation of the unit at parameters in the electrical network of 160–250 V.

Note! When the circulation circuit is clogged, it is possible to provide movement in the primary boiler with a bypass line

Features of operation

There are a number of provisions and rules according to which the use of gas equipment is permitted. Let's consider the basic requirements for open-type speakers:

• Do not start work in the absence of draft in the chimney or in the presence of reverse draft;
• It is not allowed to turn on and ignite without studying the operating instructions;
• For normal operation, natural ventilation is necessary (window, vent);
• It is prohibited to independently change the design of the equipment.

For long service life of the device, it is recommended not to turn on the heating above 55 degrees, and also not to mix hot and cold flows on the mixer. This leads to rapid scale deposits.

Dispensers with an open combustion chamber are most at risk of gas leakage. If you smell it, then:

• Close the valve;
• Open the windows and ventilate the room;
• Do not light a fire until the room is completely ventilated;
• Contact the repair service.

Before starting the appliance, check the presence of draft in the chimney.

How to properly check

There are two “folk” ways of checking:

1. Take a piece of paper and hold it near the chimney or ventilation. If the leaf tightens, it means the shaft is working properly. If it falls, you need to clean the hole.
2. Light a match and bring it to the viewing window. Does the flame deviate to the side? Then you can start the column. If it burns smoothly, check the chimney.

It also happens that everything is in order with the mine, but there is no traction. The room may not be ventilated, so there is no air flow for combustion.

How to turn on the water heater

Before turning on any equipment, there must be water in the heat exchanger. Therefore, you should first open the water valve.

Electric models:

• Insert batteries into the battery compartment;
• In some cases, you need to turn the power or temperature switch;
• Open the gas valve;
• Turn on the mixer on the hot position, which will ignite.

If there is a long break in the operation of the device, an air pocket forms inside, which is why the burner does not ignite the first time. Workaround: open and close the mixer several times until ignition occurs.

Semi-automatic devices:

• Start the fuel supply;
• Set the power and hold the piezo ignition button until the wick ignites;
• When you turn on the water, the burner will light up.

It is not difficult to launch modern technology. What about an old-style product?

Ignition of an obsolete type column

A device with manual ignition is considered obsolete. The design provides for constant burning of the wick and manual shutdown. Ignition occurs from a burning match, less often - using piezo ignition. These include: “Iskra KGI-56”, series L, GVA, VPG. They are equipped with a turn signal or lever to regulate the temperature.

The operating principle is the same as that of modern models. The only difference is in the features of turning on the heating. If this is your first time launching, then you should know that:

• There must be a constant flow of air in the room with the column. This is important to keep the flame burning. Therefore, kitchen doors have a 5 cm gap at the bottom. If plastic windows are installed, a ventilation valve is required;
• It is necessary to regularly check for traction;
• Check the condition of the gas valve. Open it and coat the joints with soapy water. If bubbles appear, there is a leak.

For ignition, it is more convenient to use long matches that can easily reach the igniter.

Launch of KGI-56

Turn the fuel and water valves. Now turn the left control all the way to the left. Hold down the solenoid valve button if the product has one. Continuing to press the button, ignite the igniter with a match. After that:

• Open the hot water faucet;
• To light the burner, turn the other knob to the left.

Features of Mora TOP boilers

The device starts working by turning on the main burner, which is ignited by a piezo igniter depending on the speed of the circulating water, starting from 5.5 l/min. This indicator corresponds to the minimum power of the unit; the nominal one is achieved with a flow of 8 l/min. The unit is supplied without the By-pass function, so when starting the system, leave the valve on at least one radiator open. Adjustment of the technological process occurs in several modes, but always starts in the same way - by turning on the pump.

The main adjustment is made by a capillary thermostat in the network water range of 7–77 °C. More efficient regulation will be performed by a 220 V room thermostat, depending on the user-set indoor air temperature in the room. In this case, this thermostat is connected in series with the capillary one.

To prepare domestic hot water, the Mora TOP boiler can be connected to an indirect heating boiler using additional equipment. In this case, regulation occurs based on the demand received from the DHW thermostat of the boiler (ON/OFF). The capillary and room thermostat remain unconnected, the water temperature is regulated at 85 °C. If the capillary is installed in the “snowflake” position, the unit is in frost protection mode, and as soon as the temperature of the network water drops below, the heated internal circuit water will begin to circulate.

Controls

ON/OFF button

When you press the “ON/OFF” button, the boiler turns on or off. When the boiler is turned on, “ON” will appear on the display. If the boiler is set to the “OFF” mode, but is connected to the electrical network, then the pump mileage and frost protection functions will operate.

“RESET” button

In the event of a malfunction caused by the burner flame going out, pressing this button will return the automatic ignition system to a ready state, unless the malfunction is caused by the emergency thermostat. If there is a malfunction caused by the backdraft fuse, you need to wait approximately 10 minutes and then press the “RESET” button again.

Heating water temperature adjustment buttons
Heating water temperature adjustment is performed using the following buttons: - increase temperature;
- decrease in temperature. The heating water temperature is set in the range:

from 30 to 80°C - for a heating system with radiators.

Features of Mora Top geysers

We managed to win the sympathy of buyers thanks to a number of unique characteristics inherent in modern models:

• The presence of so-called “dry start” fuses. Without water, the burner simply will not light.
• Control of burner operation using a fuse. This is how any Mora device works, a gas water heater is no exception.
• Combustion products are prevented from entering the building thanks to a backdraft preventer. Water heaters can be installed inside any premises.

• Protection with a special limiter that controls the water temperature. Overheating of the device is practically excluded.
• From 115 mm - the diameter of the gas outlet neck of Mora geysers.
• The diameter of the tubes is up to 18 millimeters. Special turbulators are mounted on the internal surfaces. They prevent scale buildup.
• The heating rate is 15% higher compared to analogues due to the design of the heat exchanger.
• Automatically maintains temperature if the water speed changes while the Mora is running.
• Fittings from the German manufacturer Mertik. At a flow rate of 2.5 liters per minute or more, the column starts to turn on.

Note! The market price of most models does not exceed 16 thousand rubles.* The consumer properties of the Mora dispenser are higher compared to existing analogues

Advantages and disadvantages

Heating a home and hot water supply are two main issues that can be resolved by any buyer who decides to purchase gas water heaters. Cost-effectiveness and compact size are among the main positive aspects of the devices.

There are other characteristics that can attract buyers:

• The security system that Mora Top speakers are equipped with.
• High quality burner design. The igniter is completely protected from any contamination and damage.
• High efficiency, reaching 94% under any circumstances.
• Equipment works efficiently. Even pressure up to 0.2 atmospheres does not prevent the creation of such an effect in the Mora gas instantaneous water heater.
• Over time, heat exchangers do not leak. This is facilitated by the use of copper as one of the main materials.
• No noise when operating the Mora water heater.

Interesting! The disadvantage is that it is difficult to find parts for some models. Especially if they were released quite a long time ago. Mora gas water heaters are cheaper than existing analogues, but some buyers consider existing prices too high.

Design

In terms of design characteristics, the Mora gas water heater is not much different from its competing counterparts. The device acts as a flow-through water heater, which consists of a special ignition element, a gas-powered burner, a heat exchanger and fittings. The components are installed in a small-sized housing.

Water heater design

When the mixer is turned on in hot water mode, the ignition device ignites the gas leaving the burner. This part provides a reliable and safe flame that heats the liquid in the heat exchanger. When the hot water is turned off, the gas supply is shut off by means of a valve, due to which the main burner stops working.

The ignition design can be electric or piezoelectric. The second option works by pressing a key, as a result of which the igniter ignites and then the main burner. In the case of the electric version, the main source that produces the spark is the voltage from the batteries.

Rating of the best models of Mora geysers

Mora Top flow-through geysers are manufactured at a plant located in the Czech Republic. The devices are characterized as a highly efficient heater with an efficiency of 92%. When operating, the unit makes virtually no sound, so it can be mounted in any permitted location. The fuel mixture can be either liquefied or natural gas.

The Mora Top series of geysers includes the following modifications:

Mora VEGA 10, 10-E, 10-MAX, 10-E MAX

These variations have a power rating of 17.3 kW. The water treatment speed is 5-10 l/min. This is an improved version of modifications 370, 371, 55-02, 55-05.

Mora VEGA 13, 13-E

The models have a power of 22.6 kW with a heating intensity of 6-13 l/min.

Mora VEGA 16, 16-E

The power indicator corresponds to 26.4 kW, heating efficiency is 8-15 l/min.

When choosing one or modifications of Top geysers, it should be taken into account that versions with electric ignition will eventually require the installation of new batteries.

All variations refer to wall-mounted heaters. One device is enough for full operation when 2-3 mixers or other water intake outlets are turned on. All versions are produced in small cases.

Peculiarities

Mohr's flow-through geysers have a wide range of unique characteristics. Actually, thanks to these aspects, the devices have received worldwide consumer recognition:

• all water heaters from the Vega series are equipped with Mertik shut-off valves, which start the water heater at a water flow of 2.5 l/min;
• devices are capable of automatically maintaining temperature conditions when the volume of water consumed changes;
• the heat exchanger, thanks to its design features, can help increase the heating rate up to 15% compared to competing brands;
• due to special turbulators installed on the inner surface of the pipes, the likelihood of scale formation is eliminated;
• the heat exchange device has a temperature limiter, which prevents the system from overheating;
• The reverse draft safety valve eliminates the possibility of combustion products entering the room.

In addition, the safety of using instantaneous water heaters should be highlighted. This factor is responsible for the fire fuse, which controls the functioning of all burners, as well as a “dry start” device, thanks to which the burner will not start working if there is no water in the apparatus.

A flow-through gas water heater belongs to the middle price category and in the technical market its cost does not exceed 16,000 rubles.

VIDEO: What criteria are used to choose geysers?

Installation of Mora geyser

Before installing the instantaneous water heater, you need to find out in which room the installation will be carried out. The room must comply with safety rules, have a ventilation system, and the walls must be made of fireproof material. As a rule, installing a geyser does not cause any particular difficulties, since the work consists of 4 simple steps.

1. Fixing the device on the partition. The brackets that come with the kit are used. Here it is important to pay attention to how strong the walls are so that they can support the weight of the device.
2. Conducting hot and cold plumbing systems. This procedure is often carried out by specialists, since it requires the use of special equipment. But the main thing here is to ensure that shut-off valves are installed in front of the pipes.

In the gap between the partition and the water heating device, you need to install a layer of non-combustible material.

1. Connecting the chimney pipe. The chimney is connected using pipes with a cross-section no less than the size of the outlet of the device. The pipe must consist of a material with increased resistance to high temperatures and combustion products.
2. Connecting a pipe from a centralized gas main. This manipulation must be entrusted to representatives of the gas service, otherwise a mistake may be made, and problems may subsequently arise in compliance with safety standards, as a result of which specialists will issue a fine.

Operation and repair work

The operating process consists of turning on the device and setting the required temperature conditions. To carry out this work, you need to turn the lever on the front panel to the desired mode. There are 4 main handle positions:

• disabled;
• setting a small burner on fire;
• starting the main burner;
• automatic operation.

The second lever is designed to set the water heating temperature - 25-55°C.

If you select a high level of liquid heating, the water flow through the water heating system will decrease.

The operating life of the columns is 12 years. Based on consumer reviews, it should be noted that repair work during the use of water heaters is extremely rarely required. Often, if the manufacturer's recommendations are fully followed, the main cause of problems is the accumulation of scale or salts in the system. Here you only need to clean or flush the heat exchanger and water system.

Also, after some time, users noted a decrease in efficiency and deterioration in traction. Most likely the problem lies in the accumulation of soot or soot. It is enough just to disassemble the gas path and clean it of deposits.

If you detect a smell of gas or other more serious damage, you should immediately contact a service center that diagnoses and repairs geysers. Otherwise, more global problems may arise.

VIDEO: Problems and solutions

The Mora geyser is a Czech-made product from the company MORA-TOP, which has been producing heating and hot water equipment for almost two hundred years. In this review, we propose to consider the most popular lines of speakers of this brand, learn about their key characteristics and get acquainted with the opinions of users. This way you can make a conclusion whether it’s worth buying the Mora column or continuing to look for products from another brand.

Technical characteristics of gas boilers "Mora TOP"

Rating of TOP 5 wall-mounted single-circuit boilers

Among single-circuit wall-mounted boilers, the following models stand out:

Buderus Logamax U072-18

world famous concern Bosh. Experts note the high quality of the products, which is not inferior to the products of the parent company. The Buderus Logamax U072-18 boiler is a single-circuit unit with a power of 18 kW, which is suitable for heating a house of 160-180 sq. m. m.

The manufacturer warns that if the water hardness is more than 16°dGH, you will need to use softeners or special filters.

• coolant temperature - 40-82°;
• pressure in the heating circuit (max) - 3 Bar;
• dimensions - 400/299/700 mm;
• weight - 32 kg.

The unit can be connected to an external indirect heating boiler, which will provide the home with hot water.

BAXI LUNA-3 1.310 Fi

The BAXI company is considered Italian, although the enterprises are scattered throughout Europe, and the head office is located in the Netherlands. The LUNA-3 1.310 Fi boiler is a convection unit with a power of 31 kW.

This is a solid device capable of heating a residential building or office with an area of ​​up to 310 square meters. m. High efficiency (93.1%) ensures fuel savings and allows you to get maximum performance from the boiler.

• coolant temperature - 30-85°;
• gas consumption - 3.52 m3/hour;
• pressure in the heating circuit (max) - 3 Bar;
• dimensions - 450x763x345 mm;
• weight - 40 kg.

According to the manufacturer, the service life of the boiler is at least 10 years with a 2-year warranty.

BAXI LUNA Platinum+ 1.32

Another representative of the Italian company is a condensing single-circuit boiler with a capacity of 34.8 kW. Its efficiency is 105.7%, which is nothing more than a clumsy marketing ploy.

A preheating stage has been added to the design of the unit, which allows reducing the intensity of the burner and saving fuel. However, the physical possibility of condensation with the release of heat is possible only under certain and rather narrow conditions, which are impossible in Russia.

• coolant temperature - 25-80°;
• gas consumption - 3.49 m3/hour;
• pressure in the heating circuit (max) - 3 Bar;
• dimensions - 450x760x345 mm;
• weight - 37.5 kg.

The price of the BAXI LUNA Platinum+ 1.32 condensing boiler averages 76-80 thousand rubles.

Considering the uselessness of an additional heating stage in most regions of Russia, the need for such a purchase should be carefully weighed.

MORA-TOP Meteor Plus PK24SK

A product from Czech manufacturers with a power of 23.7 kW. This is the optimal value for a room with an area of ​​220-240 square meters. m., which corresponds to the size of most cottages.

It is a single-circuit gas wall-mounted atmospheric type boiler. Requires connection to a common stove-type chimney.

• coolant temperature - 30-80°;
• gas consumption - 2.6 m3/hour;
• pressure in the heating circuit (max) - 3 Bar;
• dimensions - 400x750x380 mm;
• weight - 27.5 kg.

Users note the high performance and reliability of the unit, stability of operation.

Protherm Panther 25 KTO (2015)

The Protherm brand is the brainchild of the Vaillant Group, and was created specifically for the production of inexpensive, high-quality gas boilers. Initially, the products were aimed at the market of Russia and the CIS countries.

The Protherm Panther 25 KTO (2015) boiler has a power of 25 kW, which is suitable for heating 250 sq.m. It features low fuel consumption and stable, trouble-free operation.

• coolant temperature - 30-85°;
• gas consumption - 2.8 m3/hour;
• pressure in the heating circuit (max) - 3 Bar;
• dimensions - 440x800x338 mm;
• weight - 41 kg.

When connecting an external boiler, it becomes possible to provide the room with hot water, which makes the unit a fully functional device.

Installation

To install the boiler, as well as for its further safe and economical operation, it is necessary to have a professionally completed project for the entire heating system. The boiler can only be installed by a specialized service organization authorized by the manufacturer. To operate the boiler, only the type of gas indicated on the type plate of the product can be used. An installed and assembled boiler must not be moved to a new location. The boiler must be installed so that the socket for electrical connection of the boiler is located in an accessible place. If it is necessary to interfere with the operation of the boiler, be sure to remove the plug from the electrical outlet. The boiler is designed for mounting on a wall made of non-combustible material. There should be no objects made of flammable materials on the boiler itself or at a distance of 100 mm from it.

Maintaining safe distances

To comply with fire safety, when installing a water heater, the following safe distances must be observed: walls with a flammability degree of B, C1, C2 - min 20 mm, Sz - min 40 mm.

The safe distance means the distance from the external circuits of the water heater and the combustion product removal device to flammable materials.

FLAMMABILITY RATE:

IN

- non-combustible building material (heats or chars)

C1

- low-flammability material (after removing the fire source it will go out in 2 minutes)

C2

- medium-flammable material (after removing the fire source it will go out after 5 minutes)

C3

- flammable material (continues to burn after removing the fire source)

Malfunctions of the Mora Top gas boiler

If there is any malfunction in the operation of the heating structure of this brand, the display will show the so-called “error code” and notify the owner.

You can see all possible error codes for Mora Top gas boilers here

The error may occur due to a malfunction of the pump, a closed switch, a lack of gas supply to the burner, problems with the safety module, etc. However, an indication on the display may not occur, but you will understand that there is a malfunction. In this case, analyze what exactly the problem is, find a description of it in the article (link above), read the possible solution to this problem and fix it.

Gas boilers from the Czech manufacturer Mora Top are adapted to domestic operating conditions, which many boilers from other manufacturers with similar technical characteristics cannot boast of. The buyer has the opportunity to choose a suitable heating model. The product range is huge: from 15 to 750 kW. You can choose a fully automatic installation and a classic boiler without built-in complex automation. Basic rules of use also underlie the popularity of Mora models.

Review of Mora floor standing boilers

Mora Top floor-standing gas heating boilers are presented in more than ten modifications, the main difference of which is the type of burner and combustion chamber used. To increase performance and heat transfer, it is recommended to use antifreeze. The heat exchanger and internal structure are designed taking into account the use of this liquid as a coolant.

As practice shows, the Czech water-heating energy-independent floor-mounted instantaneous gas heating boiler Mora Top is the optimal solution for heating country houses. The absence of complex automation, electricity-dependent components, high productivity - all this distinguishes the equipment of this series.

Carrying out installation work

Mora gas appliances are designed in such a way that installation and maintenance of boilers are as simple and easy as possible. All volatile models have a self-diagnosis function. Information about all violations is displayed on the LCD display. The boilers are equipped with Mora equipment. As a result, automation, burner and other components ensure stable and long-term operation. Commissioning and adjustment of the boiler is carried out as follows:

• Volatile boilers are connected to the network. The self-diagnosis function starts automatically. The controller checks the presence of pressure in the heating system and gas pipeline. When deviations are found, a signal is issued in the form of a digital value. After troubleshooting, the boiler starts up.
• Non-volatile units do not have self-diagnosis functions, automatic flame ignition, etc. Therefore, before starting up and putting the equipment into operation, the company representative must ensure that all installation recommendations are followed. It is mandatory to install a water treatment system and a safety group; you may need to connect an expansion tank and a circulation pump.

Czech Mora gas boilers generally start up without any difficulties, but there are exceptions, mainly related to transportation or installation problems.

One of the common malfunctions of a double-circuit boiler is the failure of the thermocouple. After replacement, the functionality of the equipment is fully restored.

Fistulas in the heat exchanger

One of the most common failures of Mohr columns is the appearance of microholes on the heat exchanger tubes. To detect them, you need to carefully inspect it with the tap turned off (this achieves maximum pressure inside). Some leaks will be visible by drops of water, the smallest fistulas will be visible by green or rusty stains.

Before starting repair work, the water is drained. You can fix the problem in the following ways:

At the end, the water heater is filled with liquid, and the places of former leaks are carefully inspected. You need to check first with cold water, and then with hot water on.

DOMOSTROYPlumbing and construction

Czech manufacturer of heating and water heating equipment

We give our consumers a unique atmosphere of comfort and convenience

New

The Mora Titan boiler is an alternative to floor-standing Russian boilers with a power of up to 14 kW. Unlike Russian boilers, it is lighter, more compact, and has better performance.

home

MORA-TOP is a Czech manufacturer of heating and water heating equipment, which has been bringing warmth and comfort to the homes of its consumers for two centuries. Centuries of experience combined with modern production technologies make MORA-TOP products high quality and reliable.

The company produces a wide range of products: wall-mounted gas boilers, gas instantaneous water heaters, electric wall-mounted boilers, floor-standing cast iron boilers, combined and indirect heating storage water heaters, as well as a full range of accessories.

MORA-TOP products give their consumers a unique atmosphere of comfort and convenience.

More than 60% of the company's products are exported to England, France, Germany, Benelux countries, Poland, Hungary, Slovakia, the CIS and Baltic countries. MORA owns 87% of the Czech market for household stoves, 60% of the Slovak and 50% of the Hungarian market. Moreover, products for all markets are produced on the same production lines.

The key to the company’s successful activities is rich experience, close attention to product quality and constant movement forward. The use of advanced technologies in the production process and the high quality of Mora products presented by Aquapoint are confirmed by ISO 9001 certificate

The key to the company’s successful activities is rich experience, close attention to product quality and constant movement forward.

The use of advanced technologies in the production process and the high quality of Mora products presented by Aquapoint are confirmed by ISO 9001 certificate

The key to the company’s successful activities is rich experience, close attention to product quality and constant movement forward.