Fondital Nias Dual Line Tech BTN 24 Guía de inicio rápido

INSTALLATION

USE AND MAINTENANCE

NIAS DUAL

High quality

Italian product

IST 03 C 294 - 02

Dear Customer,

Thank you for choosing and buying one of our boilers. Please read these instructions carefully in order to install,

operate and service the boiler properly.

The Manufacturer recommends that Customers contact authorized qualified personnel only for maintenance

and repair operations.

General information for fitters, maintenance technicians and users

This INSTRUCTION MANUAL, which is an integral and indispensable part of the product, must be handed over to the user by the fitter and must

be kept in a safe place for future reference. The manual must accompany the boiler should it be sold or its possession transferred.

This boiler is designed for connection to a central heating system and to a hot domestic water system.

Any other use is considered incorrect and therefore dangerous.

The boiler must be installed in compliance with the applicable laws and standards and according to the manufacturer’s instructions given in

this manual. Incorrect installation may cause injury to people or animals and damage to property. The manufacturer shall not be held liable

for any such injury or damage.

Damage or injury caused by incorrect installation or use, or by failure to follow the manufacturer’s instructions will relieve manufacturer of any

and all contractual and extra-contractual liability.

Before installing the boiler, check that the technical data correspond to the requirements for its correct use in the system.

Check that the boiler is intact and has not been damaged during transport and handling. Do not install equipment which is damaged or

faulty.

Do not obstruct the air intake or heat dissipation openings.

Only Manufacturer-approved accessories or optional kits must be installed.

All the packaging materials can be recycled and must be disposed of correctly. They must be sent to a specific waste management site. Keep

the packaging out of the reach of children as it may represent a hazard.

In the event of failure or faulty operation, switch off the boiler. Do not attempt to make any repairs and contact a qualified technician.

Manufacturer-approved parts must be used for all repairs to the boiler.

Failures to comply with the above requirements may affect the safety of the boiler and endanger people, animals and property.

Routine boiler maintenance should be performed according to the schedule in the relevant section of this manual.

Appropriate boiler maintenance ensures efficient operation, preservation of the environment, and safety for people,

animals and property. Incorrect and irregular maintenance can be a source of danger for people, animals and property.

The Manufacturer recommends that Customers contact an authorized Service Centre for maintenance and repairs.

If the boiler is to remain inactive for a long time, disconnect it from the power mains and close the gas tap.

Warning! If the boiler is disconnected from the mains, the electronic anti-freeze function will not operate.

Should there be a risk of freezing, add anti-freeze to the heating system. It is not advisable to empty the system as this may result in damage.

Use specific anti-freeze products suitable for multi-metal heating systems.

If you smell gas:

 •donottouchanyelectricalswitchesanddonotturnonelectricalappliances;

 •donotigniteflamesandextinguishanycigarettes;

 •closethemaingastap;

 •opendoorsandwindows;

 •contactaServiceCentre,aqualifiedfitterorthegassupplycompany.

Never use a flame to detect a gas leak.

WARNING

This boiler has been built for installation in the country indicated on packaging and the rating plate.

Installation in a country other than the specified one may be a source of danger for people, animals and property.

The Manufacturer cannot be held contractually or extra-contractually liable in the event of failure to comply with the above.

RAPID OPERATING INSTRUCTIONS

The following instructions will help you to switch the boiler on quickly and regulate it for immediate use.

It is presumed that the boiler has been installed by a qualiﬁed ﬁtter, it has been used before and is ready

to operate correctly.

If any accessories have been ﬁtted on the boiler, these instructions will not cover them. You will therefore have

to refer to the full boiler instructions as well as to the speciﬁc instructions for the accessories.

This manual contains full details of how the boiler works, and full operating and safety instructions.

1. Open the gas cock.

2. Turn the master switch to ON: the display comes on and shows the function set via the boiler selector (2, ﬁg. 1).

3. If you do not wish to activate the heating function, turn the boiler selector (2, ﬁg. 1) to SUMMER. This will activate domestic hot water

(DHW) only, and the display will show the ﬂow water temperature.

4. If you wish to activate the heating function, turn the boiler selector (2, ﬁg. 1) to WINTER. This will activate both DHW and heating, and

the display will show the ﬂow water temperature.

5. If you wish to activate the Aqua Premium system, proceed as follows to regulate the hot water temperature.

Turn the regulator (3, ﬁg. 1) anticlockwise as far as it will go. The storage symbol , is displayed, showing that the Aqua Premium system

is active (if it was already active, this operation deactivates it). Then turn the selector (3) until the desired hot water temperature is

displayed (at least 40°C).

While the DHW temperature is being regulated, the display shows the temperature setting and the tap symbol ﬂashes.

6. To regulate the CH water temperature, ﬁrst set the regulator (4, ﬁg. 1) to 3 o’clock (about 70°C), then regulate it as required. While the

DHW temperature is being regulated, the LCD displays the temperature setting and the tap symbol ﬂashes.

7. Set the desired temperature on the (optional) room thermostat in the building.

The boiler is now ready to operate.

If the boiler shuts down, turn the boiler selector (2in ﬁg. 1) to reset for a few seconds, then back to the desired position. If the boiler does not

restart, contact an Authorised Service Centre.

Boiler selector on SUMMER

Boiler selector on WINTER

DHW temperature regulator

CH water temperature regulator

Boiler selector on RESET

Liquid crystal display (LCD)

TABLE OF CONTENTS

General information for the fitters, maintenance technicians and users page 3

Rapid operating instructions page 4

1. User instructions page 7

1.1. Control Panel page 7

1.2. LCD page 8

1.3. BOILER STATUS – LCD ACTIVATION CORRESPONDENCE page 9

1.3.1. Normal operation page 9

1.3.2. Malfunction page 9

1.4. Operating the boiler page 10

1.4.1. Switching on page 10

1.4.2. CH function page 10

1.4.3. DHW function page 10

1.4.3.1. AQUA PREMIUM system page 10

1.4.3.2. Instantaneous production of DHW page 11

1.4.4. Anti-freeze function page 11

1.4.5. Pump and valve anti-shutdown function page 12

1.4.6. Operation with (optional) remote control page 12

1.4.7. Operation with an (optional) external probe page 12

1.5. Boiler shutdown page 13

1.5.1. Burner shutdown page 13

1.5.2. Shutdown due to overheating page 13

1.5.3. Shutdown due to air/flue gas system malfunction page 13

1.5.4. Shutdown due to insufficient water pressure page 13

1.5.5. Alarm due to temperature probe malfunction page 14

1.5.6. Alarm due to external probe malfunction (optional) page 14

1.5.7. Alarm due to gas valve modulator malfunction page 14

1.5.8. Alarm due to (optional) remote control connection malfunction page 14

1.6. Maintenance page 14

1.7. Notes for the user page 14

2. Technical features and dimensions page 15

2.1. Technical features page 15

2.2. Dimensions page 16

2.3. Boiler layout page 18

2.4. Operating data page 19

2.5. Technical specifications page 20

3. Instructions for the fitter page 21

3.1. Installation standards page 21

3.2. Installation page 21

3.2.1. Packaging page 21

3.2.2. Deciding where to install the boiler page 21

3.2.3. Positioning the boiler page 21

3.2.4. Installing the boiler page 23

3.2.5. Boiler room ventilation page 23

3.2.6. Air/flue gas system for natural draught boilers (BTN) page 23

3.2.7. Air/ﬂue gas system for forced draught boilers (BTFS) page 24

3.2.7.1. Air/flue gas pipe configuration: B22, C12, C32, C42, C52, C82 page 25

3.2.7.2. Air/flue gas system with 100/60 mm diameter coaxial pipes page 26

3.2.7.3. Air/flue gas system with 80 mm diameter split pipes page 27

3.2.7.4. Direct air intake and flue gas discharge with 80 mm diameter duct page 28

3.2.8. Measuring combustion efficiency page 29

3.2.8.1. Chimney-sweep function page 29

3.2.8.2. Measurement procedure page 29

3.2.9. Gas mains connection page 30

3.2.10. Plumbing connection page 30

3.2.11. Adjustable by-pass page 31

3.2.12. Power mains connection page 31

3.2.13. Room thermostat installation (optional) page 31

3.2.14. Installation of the OpenTherm remote control (optional) page 31

3.2.15. Installation of the (optional) external probe and sliding temperature operation page 32

3.3. Filling the system page 33

3.4. Starting the boiler page 33

3.4.1. Preliminary checks page 33

3.4.2. Switching on and off page 33

3.5. Wiring diagram page 34

3.6. Adapting to other gases and regulating the burner page 35

4. Testing the boiler page 36

4.1. Preliminary checks page 36

4.2. Switching on and off page 36

5. Maintenance page 36

5.1. Maintenance schedule page 36

5.2. Combustion analysis page 37

6. Troubleshooting page 38

LIST OF FIGURES

fig. 1 - Control panel page 7

fig. 2 - Liquid crystal display page 8

fig. 3 - Fictitious room temperature page 12

fig. 4 - Thermoregulation curves page 12

fig. 5 - Filling tap page 13

fig. 6 - Dimensions for model BTN page 16

fig. 7 - Dimensions for model BTFS page 17

fig. 8 - Plumbing system diagram page 18

fig. 9 - Installation template page 22

fig. 10 - Dimensions for connection to a flue gas pipe – model BTN page 24

fig. 11 - Connection to the stack – model BTN page 24

fig. 12 - Coaxial air/flue gas discharge pipes - models BTFS page 26

fig. 13 - Dimensions for connecting the coaxial air/flue gas system – models BTFS page 26

fig. 14 - 0SDOPPIA06 split kit (for models BTFS) page 27

fig. 15 - Dimensions for connecting split air/ﬂue gas system – models BTFS page 28

fig. 16 - Opening the casing page 29

fig. 17 - Chimney-sweep function page 29

fig. 18 - Examples of points for measuring combustion efficiency page 29

fig. 19 - Gas mains connection page 30

fig. 20 - By-pass adjustment page 31

fig. 21 - Thermoregulation curve adjustment page 32

fig. 22 - Thermoregulation curves page 32

fig. 23 - Wiring diagram page 34

fig. 24 - Gas conversion – gas selection jumper page 35

fig. 25 - Gas conversion – gas valve modulation coil page 35

fig. 26 - Gas conversion – pressure intake page 35

fig. 27 - Gas conversion – control panel settings page 35

fig. 28 - Gas conversion – gas valve regulation page 35

LIST OF TABLES

Table 1 - Liquid crystal display during normal operation page 9

Table 2 - Liquid crystal display in the event of a malfunction page 9

Table 3 - Operating data - model BTN 24 page 19

Table 4 - Operating data - model BTFS 24 page 19

Table 5 - Operating data - model BTFS 28 page 19

Table 6 - Operating data - model BTFS 32 page 19

Table 7 - Overall data page 20

Table 8 - Combustion data - model BTN 24 page 20

Table 9 - Combustion data - model BTFS 24 page 20

Table 10 - Combustion data - model BTFS 28 page 20

Table 11 - Combustion data - model BTFS 32 page 20

Table 12 - Relation between the temperature and nominal resistance of probes page 34

1. USER INSTRUCTIONS

1.1. Control panel

1. Liquid crystal display (LCD)

The LCD displays the boiler status and operating data (see ﬁg. 2).

2. Boiler mode selector

With the selector on RESET , the boiler restarts after activation of the burner shutdown device.

With the selector on OFF, the boiler is in stand-by mode, with the heating and hot water functions disabled.

With the selector on SUMMER , the boiler is ready to produce domestic hot water only.

With the selector on WINTER , the boiler is ready to heat and produce hot water.

With the selector on ANTI-FREEZE , only the anti-freeze function is enabled.

3. DHW temperature regulator

This is used to enable/disable water storage and to set the DHW temperature in the range 35-57°C.

4. CH water temperature regulator

This is used to select the temperature of the water in the heating system in the range 35-78°C.

5. Water pressure gauge

This shows the pressure of the water in the heating system.

ﬁg. 1

2345

1.2. LCD

a. DHW indicator (tap symbol)

This comes on when the boiler is in DHW mode.

It ﬂashes when the DHW temperature is being regulated via regulator 3(ﬁg. 1).

b. Water heater on indicator

This indicator comes on when Aqua Premium system is activated via regulator 3(ﬁg. 1). Refer to subsection 1.4.3.

c. Alphanumeric indicator

This shows the following:

- boiler status

- CH temperature

- CH temperature setting

- DHW temperature setting

- boiler diagnostics

d. Central heating indicator

This comes on when the boiler is in CH mode.

It ﬂashes when the CH temperature is being regulated via regulator 4(ﬁg. 1).

e. Boiler shutdown indicator

This comes on when there is a malfunction that cannot be reset via the boiler funtion selector (2, ﬁg. 1).

The problem must be solved before the boiler can be restarted (see 1.5. and following).

f. Ignition power indicator (for ﬁtter only)

Refer to subsection 3.6., for the ﬁtter only.

g. Burner shutdown indicator

This comes on when the burner shutdown device activates due to a malfunction.

To restart the boiler, turn the boiler selector (2, ﬁg. 1) to the RESET position for a few seconds and then back to the desired position (see

1.5. and following).

h. Flame indicator

This comes on when the burner ﬂame is present.

i. Chimney-sweep function indicator (for ﬁtter only)

This comes on when the chimney-sweep function is activated (see 3.2.8.1, for the ﬁtter only).

l. Thermoregulation indicator (for ﬁtter only)

This comes on when the thermoregulation curve is set (see 1.4.7. and 3.2.15., for the ﬁtter only).

m. Fictitious ambient temperature indicator

When an external probe is installed, this indicator ﬂashes when the ﬁctitious ambient temperature is set via regulator 4(see 1.4.7).

ﬁg. 2

a b c d

f g h i l m

1.3. BOILER STATUS – LCD ACTIVATION CORRESPONDENCE

1.3.1. Normal operation

Boiler selector on OFF

Boiler selector on ANTI-FREEZE

Boiler selector on SUMMER or WINTER

Aqua Premium system disabled, no function active

The water ﬂow temperature is displayed

Boiler selector on SUMMER or WINTER

Aqua Premium system enabled, no function active

The water ﬂow temperature is displayed

Boiler selector on SUMMER or WINTER

DWH function active (with Aqua Premium system disabled)

The water ﬂow temperature is displayed

Boiler selector on WINTER

CH function active

The water ﬂow temperature is displayed

Table 1

1.3.2. Malfunction

Boiler not powered on

Boiler shutdown due to ﬂame absence

Boiler shutdown due to safety thermostat activation

Boiler shutdown due to ﬂue gas thermostat activation (BTN)

Boiler shutdown due to air pressure switch activation (BTFS)

Low system pressure alarm

CH probe failure

DHW probe failure

Storage probe fault

Gas valve modulator malfunction alarm

Remote control connection failure

External probe failure

Table 2

1.4. Operating the boiler

1.4.1. Switching on

It is presumed that the boiler has been installed by a qualiﬁed ﬁtter, it has been used before and is ready

to operate correctly.

• Open the gas cock;

• Turn the master switch to ON – the LCD (g. 1) light up and shows the active function (see table 1)

OFF/SUMMER/WINTER/ANTI-FREEZE;

• choose the boiler mode via selector 2 (g. 1): OFF/SUMMER/WINTER/ANTI-FREEZE;

• Set the temperature for the heating system on regulator 4 (g. 1);

• Set the DHW temperature on regulator 3 (g. 1);

• Set the ambient temperature on the (optional) thermostat.

IMPORTANT

If the boiler is not used for a long time, particularly when it runs on propane gas, ignition may be diﬃcult. So, before starting

the boiler, switch on a diﬀerent gas-ﬁred device (e.g. a cooker).

Note that the boiler may still shut down a couple of times. If this happens, turn selector 2 (ﬁg. 1) to the RESET position for a

few seconds, then back to the desired position.

1.4.2. CH function

The heating function is only active when the boiler selector (2, fig. 1) is on WINTER .

The water temperature can be set on regulator 4(ﬁg. 1).

The temperature range is 35-78°C (from the fully anticlockwise to the fully clockwise position).

During temperature setting, the CH symbol on the LCD flashes and the CH setting is displayed.

When the CH system demands heat, the LCD shows the (fixed) CH symbol and the instant temperature of the

CH water.

The burner symbol only shows while the burner is operating.

In order to avoid frequent switching on and off of the heating function, the boiler has a 4-minute waiting time between subsequent

ignitions. If, however, the temperature in the system drops below 40°C, this waiting time is cancelled and the boiler reignites.

1.4.3. DHW function

The domestic hot water function is active with the boiler selector 2 (fig. 1) on SUMMER or WINTER .

The boiler always gives priority to DHW demand over the CH function.

The boiler is equipped with the AQUA PREMIUM system, which combines the instantaneous production of domestic hot water with a

storage function.

1.4.3.1. AQUA PREMIUM system

The boiler comes with a 25-litre stratification storage tank and a secondary plate heat exchanger.

The boiler can either function as a standard instantaneous boiler, when the storage tank is deactivated, or

with the innovative Aqua Premium system, when the storage tank is switched on.

The storage tank function is controlled via regulator 3(fig. 1).

When regulator 3is turned fully anticlockwise, the storage tank symbol is displayed. Then turn regulator 3clockwise until a setting

of at least 40°C is reached.

To deactivate the storage function, turn regulator 3 fully anticlockwise until the symbol disappears, then back to a setting of at least

40°C.

The temperature range is 35-57°C (from the fully anticlockwise to the fully clockwise position of regulator 3).

During temperature setting, the DHW symbol on the LCD flashes and the water temperature is displayed.

In Aqua Premium mode, when a hot water tap is turned on, the flow switch cuts off the supply of water. The boiler switches on, the

cutoff valve opens and the DHW pump activates (the flow rate is fixed).

When DHW demand is less than the pump’s flow rate, water to the tap is only supplied by the secondary plate heat exchanger and

excess DHW is deviated to the storage tank.

When the DHW demand exceeds the flow rate, water produced by the secondary heat exchanger is added to that from the storage

tank. This gives a higher hot water flow than produced by instantaneous boilers with an identical thermal output and traditional ones

with a storage tank of the same capacity.

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