Possible malfunctions, diagnostics and repair of wall-mounted gas heating boilers FERROLI DIVA F24 and DIVA C24. Heating systems for country and country houses. Boilers, geysers, water heaters - Repair, service, operation. Recommendations for installation and

FERROLI gas boilers are reliable equipment from a European manufacturer. Breakdowns, failure, deterioration in the operation of gas boilers DIVA F24 and DIVA C24 FERROLI, like most other heating equipment are often associated with the following reasons:

• frequent and significant voltage drops in the mains;
• a large number of coarse, colloidal impurities in water and salts contained in it;
• incorrect start-up and adjustment of the boiler, refusal of regular maintenance prescribed by the manufacturer;
• excess due date boiler operation.

To avoid breakdowns and malfunctions gas boiler DIVA F24, like the DIVA C24 boiler, you should always use a reliable voltage stabilizer and a filter for the water entering the boiler. Also hold an annual Maintenance boiler, in which all boiler systems are checked, which makes it possible to identify many problems before the boiler fails. In addition, cleaning and adjustment are carried out, allowing the boiler to work stably and last longer.

Troubleshooting and replacement of spare parts for boilers DIVA F24 and DIVA C24 FERROLI

Below is a list of symptoms of malfunctions and the spare parts most likely to be replaced:

Boiler DIVA F24
Malfunction	Replacement part(link to store)
error F05 the boiler does not light up Repair and maintenance Repairing a gas boiler with your own hands is an extremely dangerous business. In order to repair a gas boiler with high quality and with a guarantee, general knowledge and ingenuity are not enough. Any work on start-up, adjustment, disassembly, replacement of spare parts for heating gas boilers should be carried out only by specialists with the appropriate qualifications and preferably trained in this type of boilers.

Installation and maintenance of a double-circuit gas boiler Ferroli Diva

Double-circuit gas Ferroli boilers Diva F24/C24 are designed for heating and hot water supply. Versions with open and closed combustion chamber.

The heat exchanger of the heating circuit is made of copper, coated with a heat-resistant aluminum-based composition for long service life and against corrosion. The heat exchanger of the DHW circuit is made of stainless steel and allows for a high rate of water heating.

Location of the Ferroli Diva F24/C24 boiler

The combustion chamber of the device is hermetically isolated from the environment, which allows you to install the boiler in any room. However, the room in which the boiler is installed must have sufficient ventilation to prevent dangerous situations in the event of even small gas leaks.

This safety standard is mandatory for all types of gas-fired equipment, including devices with a so-called sealed chamber.

According to the standard, the unit can be operated in a partially protected area at an ambient temperature of at least -5°C.

It is recommended to install the boiler under a roof slope, on a balcony or in a niche sheltered from the weather. In any case, the installation site must be free of dust, flammable objects and materials, or corrosive gases.

The Ferroli Diva gas boiler is designed for hanging on the wall and is supplied complete with a hanging bracket. Fasten the bracket to the wall following the dimensions shown in the illustration on the cover of the manual and hang the boiler on it.

By special order, a metal template can be supplied to mark on the wall the points of enlightenment of the fixing holes. When mounted on a wall, the boiler must be firmly and securely fastened.

If the appliance is installed among furniture or sideways to a wall, it is necessary to provide free space needed to remove the cover and perform normal maintenance work.

Hydraulic connections

The drain hole of the safety valve must be connected to a funnel or drain pipe to prevent water from spilling onto the floor in the event of an increase in pressure in the heating circuit. Otherwise, the boiler manufacturer will not bear any responsibility for the flooding of the room when the safety valve is activated.

Before starting to connect the Ferroli Diva F24/C24 boiler to the gas supply system, make sure that the boiler is set up to operate on the type of gas available and carefully clean all the pipes of the system Make connections to the appropriate fittings according to the drawing on and in accordance with the symbols available on the unit itself .

In case the hardness of the water exceeds 5°, the water used must be properly treated to prevent the formation of scale in the boiler.

Freeze protection system, antifreeze liquids, additives and inhibitors

The use of liquid antifreezes, additives and inhibitors is permitted, if necessary, only and exclusively if their manufacturer gives a guarantee confirming that their products are suitable for this type of use and will not harm the boiler heat exchanger and other components and / or materials used in the construction of the boiler and system .

It is forbidden to use liquid antifreezes, additives and inhibitors that are not specifically designed for use in thermal installations and are incompatible with the materials used in the construction of the boiler and heating system.

Connection of the Ferroli Diva F24 / C24 boiler to the gas pipeline

The gas line must be connected to a suitable point, in compliance with current regulations, using a rigid metal pipe or seamless flexible stainless steel hose.

A gas valve must be installed between the gas main and the boiler. Check the tightness of all gas connections.

Electrical connections

The device must be connected to reliable system earthing, made in accordance with current safety standards.

The effectiveness of the earth loop and its compliance with the regulations must be checked by qualified personnel. The manufacturer does not bear any responsibility for damage that may be caused by the lack of grounding of the apparatus.

The internal electrical connections in the Ferroli Diva F 24 boiler have already been made; it is also equipped with a "Y" type power cord without a plug.

Connection to electrical network must be made in the form of a fixed connection, equipped with a two-pole switch with a distance between contacts of at least 3 mm.

In the area between the boiler and the power supply, fuses for a current of not more than 3 A. When performing electrical connections polarity is very important (LIVE: brown wire / NEUTRAL: blue wire / GND: green/yellow wire.

The user is not allowed to replace the power cable by himself. In case of replacement of the electrical cable, use exclusively a 3x0.75 mm2 cable with an outer diameter of 8 mm or less.

Before proceeding with the installation of the Ferroli Diva gas boiler, check that the diaphragm used is correct and that the maximum allowable length using a simple calculation for this:

Finalize the layout of the split ductwork, including accessories and outlet tips.

Determine the loss in meq (equivalent meters) on each component depending on its location.

Check that the total resistance value is less than or equal to the maximum allowable value.

If it is required to connect the boiler to a collective chimney or to a separate natural draft chimney, such chimneys must be designed by a professional specialist in compliance with the requirements current legislation and must be designed to work with units with a closed combustion chamber and a fan.

In particular, such chimneys must have the following characteristics:

Have dimensions calculated in accordance with current standards.

Ensure tightness and no leakage combustion products, be resistant to the effects of combustion products and temperature, be impervious to condensate.

Have a round or square section, be laid vertically and have no bottlenecks.

Have chimneys that ensure the removal of hot products of combustion to the required distance from flammable materials or their isolation from them.

Be connected to no more than one unit on each floor.

Be connected to only one type of unit (all must be either forced draft or natural draft).

Not to have mechanical means suction in the main air ducts.

Have a vacuum along the entire length in stationary operation.

Have a chamber at its base for collecting solid residues or condensate, equipped with a hermetically sealed metal inspection hatch.

Fig.1. General view and components of the Ferroli Diva F 24 boiler

Fig.2,3. Heating circuit and DHW circuit

Description of positions for figures 1,2,3:

5 - closed chamber, 7 - Gas supply, 8 - Veda outlet DHW systems, 9 - Water inlet of the DHW system, 10 - Water supply to the heating system, 11 - Return pipe of the heating system, 14 Safety valve, 16 - Fan, 19 - Combustion chamber, 22 - Burner, 27 - Copper heat exchanger for heating and hot water systems, 28 - Smoke manifold, 29 - Smoke outlet manifold, 32 - Heating system circulation pump, 34 - Heating system temperature sensor , 36 - Automatic air vent, 37 - Inlet filter cold water, 38 - Flow meter, 39 - Water flow limiter, 42 - DHW temperature sensor, 43 - Air pressure switch, 44 - Gas valve, 49 - Safety thermostat, 56 - Expansion tank, 74 - Tap for filling water into the heating system, 81 - Ignition / follower electrode, 95 - Diverter valve, 114 - Water pressure switch, 187 - Flue gas diaphragm, 194 - DHW heat exchanger, 241 - Automatic bypass valve (bypass), 364 - Anti-condensate tube fitting

Ferroli Diva gas boiler maintenance

Reconfiguring the Ferroli Diva wall-mounted boiler to another type of gas

The unit is designed to operate on both methane and liquefied petroleum gas. The preparation of the boiler for operation on one or another gas fuel is carried out at the factory, and the corresponding indication is given on the packaging, as well as on the technical data plate installed on the unit itself.

If it is necessary to convert the boiler to work with a gas other than the gas for which it was set at the factory, it is necessary to purchase a conversion kit specially provided for this purpose and proceed as follows:

Disconnect the electrical supply from the unit and close the gas valve.

Replace the nozzles on the main burner by setting the nozzles according to the type of gas used.

Power up the boiler and open the gas valve.

Changing the parameter corresponding to the type of gas:

Set the Ferroli Diva boiler to standby mode.

Press the DHW buttons (display shows “B01“ flashing.

Press the DHW buttons (00 for methane operation or 01 for LPG operation.

Press the DHW buttons for 10 seconds.

The boiler will return to standby mode.

Adjust the minimum and maximum pressure on the burner by setting the operating values ​​for the type of gas used.

Burner pressure adjustment

Wall gas Ferroli The Diva F24/C24, which is a modulating flame type, has two fixed pressure settings: minimum and maximum. These values ​​should be taken from the technical data table based on the type of gas used.

Connect a pressure gauge to the pressure connector located downstream of the gas valve.

Remove the protective cap by unscrewing the screw.

Run the boiler in TEST mode.

Adjust the maximum power to the maximum value.

Adjust the maximum pressure with the screw by turning it clockwise to increase and counterclockwise to decrease the pressure.

Disconnect one of the two connectors from the Modureg control coil on the gas valve.

Adjust the minimum pressure with the screw by turning it clockwise to increase and counterclockwise to decrease the pressure.

Connect the connector previously removed from the Modureg control coil to gas valve.

Make sure the maximum pressure has not changed

Replace the protective cap.

Control operations performed while working with the Ferroli Diva boiler:

Turn on the machine.

Check the tightness of the fuel circuit and water pipes.

With the boiler running, check that the chimney and air ducts for air intake and flue gas removal are working properly.

Check if the water circulates correctly between the boiler and the heating system.

Make sure that the gas valve correctly modulates the output, both in heating and DHW mode.

Check the operation of the Ferroli Diva F 24 boiler ignition system. To do this, turn the device on and off several times by adjusting the room thermostat or using the remote control.

Make sure according to the meter readings that the gas flow corresponds to the desired value.

Check that if there is no signal to turn on the heating, the burner ignites when any DHW tap is opened.

Make sure that during operation in heating mode, when opening a faucet hot water stops circulation pump heating systems and DHW production.

Check the correctness of the programmed parameters and, if necessary, make the necessary changes (weather-compensated curve, power, temperature, etc.).

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