Gas boiler ariston clas evo. Nominal gas pressure, mbar

Wall-mounted heating boiler Ariston Clas Evo 24 FF, serial number 3300480 - heating boiler of a well-known Italian manufacturer of home appliances. By the way, unlike other equipment, boilers are made exclusively in Italy.

Briefly about the main characteristics: the boiler is designed for use in private houses and apartments. The equipment has all the necessary certificates and permits. has a decent performance and a power of 24 kW. FF in the name of the equipment indicates the presence of a turbine in this boiler, i.e. This boiler has a closed combustion chamber.

Boilers with a closed combustion chamber forcibly take in and forcibly remove combustion products through special chimneys - coaxial or separate

In addition to heating residential premises, the boiler prepares hot water in the second circuit. Model advantages:

Built-in piping - inside we will find a three-way valve, a built-in expansion tank of 8 liters and a circulation pump;
Large heated area - up to 240 sq. m;
High performance of the DHW circuit - up to 15 l / min;
Reliable primary copper heat exchanger;
The presence of a self-diagnosis system;
Convenient and clear management;
Built-in combustion products analysis system - allows you to count on their environmental friendliness;
Presence of protection against formation of a scum and from freezing.

The model is quite popular and in demand, it pleases with the presence of a productive DHW circuit, which is enough for two points of water intake at once. Since the boiler is equipped with a closed combustion chamber, it requires a coaxial chimney for its operation, it is also possible to work with a special separating adapter. If necessary, he will be able to work in non-gasified houses, powered by bottled gas (requires reconfiguration and a set of jets of smaller diameter).

The boiler is supplied with a manual for operation and maintenance, as well as fasteners necessary for mounting the device on the wall.

The boiler itself is pasted over with a protective film that allows you to protect the body from scratches during installation. At the back of the device, we can see a built-in expansion tank - it has a round shape and is separated from the main contents. At the top of the stake, we see a hole for connecting to the chimney.

Turning the Ariston Clas Evo 24 FF NG boiler, you can see a plastic control panel with numerous buttons, a pressure gauge and a liquid crystal indicator. A little higher there is a burner control window, and even higher is a service sticker - it can be removed so that it does not spoil the appearance of the device. Behind, on the expansion tank, we see a sticker confirming the Italian origin of the nodes used. Also at the rear, the heat exchanger of the DHW circuit is slightly visible.

The front panel of the gas wall-mounted double-circuit boiler Ariston Clas Evo 24 FF NG is removable. By removing it to the side, we can get to the insides of the device. The instrument panel is thrown down, allowing access to the innards. Immediately behind it are the following nodes:

Circulation pump with air outlet;
Ignition device;
Gas valve;
Pressure switch;
Three-way valve drive;
Secondary heat exchanger;
Water flow sensor;
Heating circuit filter and some other components.

In the lower part there are connecting pipes and a drain cock. All connections at the bottom are marked and signed. The diameters of the pipes required for installation are indicated - all this greatly facilitates the installation process and saves specialists from confusion. The control panel is connected to the internal nodes using wires bundled into bundles. Everything rests on the connectors, so the entire panel can be removed if necessary.

All control electronics is located in the very hinged part on which the control panel is located. Opening the cover, we will find additional connectors for connecting external devices. Room thermostats, outdoor temperature sensors, thermoregulation devices and some other nodes are connected here. Detailed information on connecting additional nodes is indicated in the operating instructions.

Having reached the board on which all the electronics are located, you need to pay attention that on the right side there are connectors for connecting high-voltage equipment, and on the left side - for connecting low-voltage equipment. A fan, a three-way valve with a drive, a circulation pump and an ignition generator are connected to the right connectors. At the top of the board is the connection of the ignition electrode, and next to it is the power connection terminal (220 Volts, in a three-wire circuit with ground). On the left side, the low-voltage equipment of the Ariston Clas Evo 24 FF NG boiler is connected - a pressure switch, a water flow sensor, a gas valve, a pressure switch, temperature sensors at the inlet and return of heating, as well as a liquid crystal display.

All equipment located inside the Ariston Clas Evo 24 FF NG wall-mounted boiler is marked, which makes it easier to find the parts necessary for repair. If necessary, the units of the apparatus can be carefully removed.

Having removed the protective cover, we will find a closed combustion chamber with copper tubes to which the heat exchanger is connected. In the upper part of the boiler there is a fan, a pressure switch and a condensate collector. The heat exchanger is located above the combustion chamber, and the chamber itself is closed by a heat-insulating panel made of metal and mineral fiber. To the left of the combustion chamber, we can see a temperature sensor on the heating supply, and on the right below, we can see a similar sensor that measures the temperature in the return part. All electrical connections, again, are made on the connectors.

The assembly of the boiler is quite solid, in the photographs presented in the review, the rather thick metal that forms the basis of the frame is perfectly visible. Having removed the thermal insulation panel, we can see the inside of the combustion chamber and the primary copper heat exchanger. As for the secondary heat exchanger, it is made of stainless steel. Thus, high reliability of the presented equipment is achieved. Due to the lightness of the design, any user can cope with cleaning the burner and heat exchanger. In the lower part of the combustion chamber, the burner itself and the electric ignition electrode are visible. The ionization flame control sensor is also located there. As we have already said, the power of the heating circuit is 24 kW. At its heart is a copper heat exchanger just over 22 cm wide, just over 3.5 cm thick and just over 18.5 cm deep.

The heat exchanger of the DHW circuit is located at the bottom of the Ariston Clas Evo 24 FF NG heating boiler. Its thickness is just over 3 cm, length - 18.5 cm, width - almost 8 cm. This heat exchanger, made of stainless steel, allows for a DHW circuit capacity of up to 15 l / min.

The reverse assembly of the Ariston Clas Evo 24 FF NG boiler takes a matter of minutes. It is enough to put back the thermal insulation panel of the combustion chamber, put on the protective cover and front panel, and also install the decorative cover of the control panel. In the assembled state, the device has a rather attractive design, and all connections from the bottom are taken away by an additional protective panel with ventilation holes. To facilitate the management, the boiler manufacturer provides for the backlight of the liquid crystal screen. Instructions for setting up the boiler circuits can be found in the documentation attached to the device. The data on the screen is quite distinguishable in the daytime - it displays the operating modes and error numbers. Also, using the display and controls, the initial setup of the equipment is carried out.

Initially, the boiler is delivered in a cardboard box. In order to prevent accidental damage to the equipment, schematic instructions for removing the heating boiler are printed on the box. After removing the device, you can proceed with the installation, connection and first start-up.

Type of fuel

The types of fuels of heating boilers are divided into gaseous, liquid, solid or a substance that is burned to produce heat.
Among heating boilers, electric boilers can also be placed in a separate group - the most environmentally friendly of all types of boilers.
The cheapest type of fuel in Russia today is natural gas. This is followed by solid fuels, electricity and diesel fuel.

Nominal gas pressure, mbar

Nominal gas pressure (mbar) - gas pressure at which the boiler provides nameplate heat output. In passports for imported boilers, gas pressure is indicated in millibars.
According to Russian standards, low-pressure gas pipelines are used to supply gas to residential buildings. In the gas pipeline, the pressure should not exceed 0.003(0.03) MPa (kg/cm2) or 30 mbar.
The gas pressure supplied to the burner is always indicated in the boiler passport and is regulated during commissioning by service specialists.

Consumption of natural gas, cubic meters / h

Natural gas consumption (cub.m/h) - the amount of gas used by the boiler plant during the operation of the burner.
In addition to the traditional insulation of the building and pipelines, gas consumption for heating can be significantly reduced through the use of boiler automation with outdoor temperature control, boilers with modulating burners and the use of condensing boilers with low-temperature heating systems

flue Ø, mm

Ø chimney, mm - minimum diameter of flue pipes and chimney. This size is indicated in the boiler passport.

Underestimation of the cross-sectional area of the chimney Absolutely forbidden!

With household wall-mounted gas boilers with a fan burner, coaxial (pipe in pipe) chimneys are used, which allow fresh air to be supplied to the boiler and exhaust gases to be removed from the boiler.

Weight without water, kg

Weight without water (kg) - passport weight of the boiler without filling with coolant and water.

Mounting

Boiler installation includes:

Installing and fixing the boiler in place;

Connecting the boiler to a central chimney or connecting a wall passage kit;

Connecting the boiler to heating pipes;

Installation of protective equipment (safety group, expansion tank)

Installation of a coarse filter;

Drain valve installation;

Make-up line connection;

If necessary, installation of a boiler pump, mixing pump, hydraulic separator, distribution manifold;

If necessary, partial assembly / disassembly of the boiler

Installation and connection of one heating group (each subsequent - 5000 rubles);

Filling the heating system with coolant;

Pressurization of the heating system.

Water heater installation includes:

Installing and fixing the water heater in place;

The device of a direct loading line from the boiler with its own pump;

Connecting the water heater to cold and hot water lines;

Arrangement, if necessary, of a recirculation line;

Installation of protective equipment (safety group, expansion tank);

Drain valve installation;

Installation of valves and instrumentation;

If necessary, install a heat-insulating casing;

Filling the water supply system with water;

Filling the heat exchanger line with coolant;

Pressure testing of heating and water supply systems.

Commissioning

Commissioning works include:

Checking the correct installation of all equipment

Checking the system for leaks

Grounding check

Connecting the boiler to the gas main (diesel)

Installation and wiring of weather-dependent automation (if available, additionally 6,000 rubles + 1,000 rubles for each additional circuit)

Automation setting

Setting the combustion process

Checking and adjusting the operation of the boiler in all modes

Commissioning also includes a detailed briefing of persons responsible for the operation of the boiler plant.

After commissioning, the equipment is put under warranty.

Annual service

Service includes :

Diagnostics of boiler equipment

Make-up of the system, pumping of expansion tanks (if necessary and if service valves are available)

Cleaning the combustion chamber of the boiler unit

Control and adjustment work on the burner

Control and adjustment work on the automation system

Mud filter cleaning

Prompt service on emergency calls of the Customer (departure, diagnostics, repair)

The cost of the annual service includes the cost of the listed works and does not include the cost of spare parts, which are supplied free of charge under warranty or for a fee. Annual maintenance is a prerequisite for maintaining warranty obligations.

EVO 24FF- a wall-mounted double-circuit gas boiler with a closed combustion chamber. It performs the function of heating cold water, which is used in heating, as well as hot water supply. It is installed in apartments, any private houses without any problems, as it has small dimensions. The EVO 24 FF is characterized by high comfort due to its easy operation and easy maintenance. This boiler is able to work even when the temperature outside reaches -52 degrees. It has a high degree of safety, thanks to several levels of protection against the occurrence of accidents. This model of the boiler is fully adapted to Russian operating conditions with pressure drops in gas and water.

Device

It has a built-in frost protection function, which allows the boiler to operate at very low temperatures. The main spiral heat exchanger is made of copper and has a protective coating against corrosion, and the DHW plate heat exchanger is made of anti-corrosion steel. The boiler has a built-in condensate collector, which increases the level of protection of the device against rust. EVO 24 FF has a 3-way motorized valve. Built-in two temperature sensors allow very accurate measurement of the temperature of the heated water. Water passes through two special mechanical filters, which prevents impurities from entering the system. There is a self-diagnosis function. The gas boiler is equipped with innovative overheating protection to prevent system breakdowns.