Beretta Mynute Green E 25 C.S.I., Mynute Green E 30 C.S.I. Installer And User Manual

Installer and user manual

nute Green E 25 C.S.I. 30 C.S.

INSTALLER AND USER MANUAL

MANUAL PARA EL INSTALADOR Y EL USUARIO

Mynute Green E C.S.I.

0476 0063CQ3187

Mynute Green E C.S.I. boiler complies with basic requirements of the

following Directives:

- Gas directive 2009/142/EC;

- Yield directive 92/42/EEC;

- Electromagnetic compatibility directive 2004/108/EC;

- Low-voltage directive 2006/95/EC;

- Directive 2009/125/EC Ecodesign for energy-using appliances;

- Directive 2010/30/EU Indication by labelling of the consumption of energy by energy-related products;

- Delegated Regulation (EU) No. 811/2013;

- Delegated Regulation (EU) No. 813/2013;

- Delegated Regulation (EU) No. 814/2013.

Thus, it is EC-marked.

La caldera Mynute Green E C.S.I. boiler cumple con los requisitos básicos de las siguientes Directivas:

- Directiva Gas 2009/142/CE;

- Directiva rendimiento 92/42/CEE;

- Directiva compatibilidad electromagnética 2004/108/CE;

- Directiva baja tensión 2006/95/CE;

- Directiva 2009/125/CE Diseño ecológico para aparatos que consumen energía;

- Directiva 2010/30/UE Indicación mediante etiquetado del consumo energético de productos relacionados con la energía;

- Reglamento Delegado (UE) N.º 811/2013;

- Reglamento Delegado (UE) N.º 813/2013;

- Reglamento Delegado (UE) N.º 814/2013.

Por lo tanto, tiene el marcado CE.

Installer – User Manual...............................................................3

Technical data..................................................................... 20-23

Overall dimensions and ﬁ ttings.................................................46

Hydraulic circuit ........................................................................46

Command panel .......................................................................47

Boiler functional elements ........................................................48

Multi-row wiring diagram...........................................................49

Manual Instalador – Usuario.....................................................24

Datos técnicos .................................................................... 41-44

Dimensiones y conexiones .......................................................46

Circuito hidráulico .....................................................................46

Panel de mandos......................................................................47

Elementos funcionales de la caldera ........................................48

Esquema eléctrico con cableado múltiple ................................49

The following symbols are used in this manual:

CAUTION = operations requiring special care and adequate

preparation

NOT ALLOWED = operations that MUST NOT be performed

En algunas partes del manual se utilizan los símbolos:

ATENCIÓN = para acciones que requieren particular atención

y una adecuada preparación

PROHIBIDO = para acciones que NO DEBEN efectuarse

nunca

Mynute Green E C.S.I.

INSTALLER

1 - WARNINGS AND SAFETY

Our boilers are built in our plants and checked down to the

smallest detail in order to protect users and fitters from injury. After working on the product, qualified personnel must check the electrical wiring, in particular the stripped part of conductors, which must not stick out from the terminal board, avoiding possible contact with live parts of such conductor.

This instruction manual, together with the user manual, are in-

tegral parts of the product: make sure that they are always kept with the appliance, even if it is transferred to another owner or user, or moved to another heating system. In case of loss or damage, please contact your local Technical Assistance Service for a new copy.

The boiler must only be installed and serviced by qualified per-

sonnel, in accordance with Ministerial Decree 37 of 2008 and Standards UNI-CIG 7129-7131, UNI 11071 and subsequent updates.

Boiler maintenance must be carried out at least once a year.

This should be booked in advance with the Technical Assistance Service.

The installer must instruct the user about the operation of the

appliance and essential safety requirements.

This boiler must only be used for the application it was de-

signed for. The manufacturer declines all contractual and non-contractual liability for injury to persons or animals or damage to property deriving from errors made during installation, adjustment and maintenance and from improper use.

After removing the packaging, make sure the content is in good

condition and complete. Otherwise, contact the dealer from whom you purchased the appliance.

The appliance's discharge manifold must be connected to a

suitable venting system. The manufacturer of the appliance is not liable for any damage/flooding resulting from the failure of the channel system.

Dispose of all the packaging materials in the appropriate con-

tainers c/o specific collection centres.

Dispose of waste taking care not to harm human health and

without employing procedures or methods which may damage the environment.

At the end of its life, the product should be not be disposed of

as solid urban waste, but rather it should be handed over to a differentiated waste collection centre.

During installation, inform the user that:

- in the event of water leaks, the water supply must be shut

off and the Technical Assistance Service must be contacted immediately

- regularly check that the operating pressure of the hydraulic

system is greater than 1 bar. If necessary, restore the pressure as explained in the “System filling” section

- if the boiler has not been used for a long time, it is recom-

mended that the Technical Assistance Service performs, at least, the following operations:

- turn the main switch of the appliance and the main switch of the system to "off"

- Close the fuel and water taps of the heating system

- drain the heating circuit to prevent freezing.

For safety, always remember that:

the boiler should not be used by children or unassisted disa-

bled people

it is dangerous to operate electrical devices or appliances

(such as switches, home appliances, etc.) if you smell gas or combustion fumes. In the event of gas leaks, ventilate the room opening doors and windows; close the gas general tap; request prompt action by Technical Assistance Service professionally qualified personnel

do not touch the boiler while barefoot, or if parts of your body

are wet or damp

set the function selector switch to OFF/RESET to bring up “- -”

on the display, then disconnect the boiler from the main power supply by turning off the main system switch before carrying out any cleaning operations

do not modify safety and adjustment devices without the man-

ufacturer's permission and relative instructions

do not pull, disconnect or twist the electric cables coming out

of the boiler, even when it is disconnected from the main power supply

avoid covering or reducing the size of the ventilation openings

in the installation room

do not leave inflammable containers and substances in the in-

stallation room

keep packaging materials out of the reach of children

it is forbidden to obstruct the condensate drainage point.

2 - DESCRIPTION

Mynute Green E C.S.I. is a wall-mounted type C condensation boil-

er for heating and the production of domestic hot water. Depending on the fume discharge accessory used, it is classified in categories B23P; B53P; C13, C13x; C23; C33, C33x; C43, C43x; C53, C53x; C63, C63x; C83, C83x; C93, C93x. In configuration B23P (when installed indoors), the appliance cannot be installed in bedrooms, bathrooms, showers or where there are open fireplaces without a proper air flow. The room where the boiler is installed must have proper ventilation. Detailed regulations for the installation of the flue, gas piping and ventilation ducting are given in Standards UNI-CIG 7129-7131 and UNI 11071. In configuration C, the appliance can be installed in any type of room and there are no limitations due to ventilation conditions or room volume. IT IS also possible, using a check valve included as an accessory, to install the boiler on collective pressurised flues; for the details, see section 3.10 “Installation on collective flues in positive pressure”. The main technical characteristics of the appliance are:

- digital display indicating the operating temperature and alarm codes

- pre-mix, low emissions burner

- air-gas ratio adjustment system with pneumatic management

- microprocessor card to control inputs, outputs and alarm management

- continuous electronic flame modulation for domestic hot water and heating

- electronic ignition with flame ionisation control

- fan controlled by Hall-effect revolutions counter

- built-in gas pressure stabiliser

- NTC probe to control delivery temperature of the primary circuit

- NTC probe to control return temperature of the primary circuit

- built in NTC integrated probe to control domestic hot water temperature

- dual device for separation and automatic purging of air

- automatic heating circuit by-pass

ENGLISH

- 3-way valve with electric actuator

- heat exchanger for DHW preparation in brazed stainless steel with anti-limescale device

- expansion tank

- low consumption modulating circulator

- manual loading of the heating circuit

- water pressure switch

- hydrometer to visualise heating water pressure

- circulator anti-blocking device

- airtight combustion chamber

- electrically operated gas valve with dual shutter to command the burner

- domestic hot water heat exchanger pre-heating function to reduce domestic hot water standby times

- self-diagnostics for signalling the cleaning of the primary circuit heat exchanger.

The safety devices of the appliance are:

- a water limit thermostat, to check for any overheating of the appliance and thereby ensure the 100% safety of the system. To restore operation if a limit thermostat has been triggered, set the function selector to OFF/RESET and then return it to the desired position

- flue gas probe: this intervenes (putting the boiler in safety stop mode) if the temperature of the combustion products exceeds the maximum operating temperature of the discharge pipes

- 3 bar safety valve on the heating circuit

- a microprocessor check of probe continuity, with any faults indicated on the display

- a syphon with float, for discharging the condensate and preventing the leakage of flue gases

- a condensate level sensor that operates by blocking the boiler if the level of condensate in the heat exchanger exceeds the allowed limit

- first level anti-freeze function (suitable for indoor installations) which also operates with the boiler in standby and which is activated when the water temperature falls below 6°C

- diagnosis for absence of circulation (via the display of the temperatures read by the delivery and return probes)

- diagnosis for absence of water (via the water pressure switch)

- a flue gas safety evacuation system incorporated in the pneumatic operation of the gas valve

- diagnosis for overtemperature on both the delivery and return lines, with dual probe - limit temperature 95°C -

- high modulation, the boiler can automatically modulate the output power in a maximum and minimum range (see technical data)

The boiler is installation ready for the following:

- a safety thermostat for reduced temperature systems

- an ambient thermostat or hourly timer

- connection to remote control with related alarm signalling.

3 - INSTALLATION

3.1 Installation regulations

Installation must be carried out by qualified personnel in compliance with local regulations.

POSITION Mynute Green E C.S.I. is a wall-mounted boiler for heating and for

the production of hot water. There are two categories, depending on the type of installation:

1. B23P-B53P type boiler - forced open installation, with flue gas discharge pipe and pick-up of combustion air from the installation area. If the boiler is not installed outdoors, air intake in the installation area is compulsory.

2. C13, C13x type boiler; C23; C33, C33x; C43, C43x; C53, C53x; C63, C63x; C83, C83x, C93, C93x: appliance with airtight chamber, with flue gas discharge pipe and pick-up of combustion air from outside.

It does not require an air intake point in the installation area. This type MUST be installed using concentric pipes, or other

types of discharge designed for condensation boilers with an airtight chamber.

MINIMUM DISTANCES

In order to have access to the boiler to perform regular maintenance operations, respect the minimum spaces foreseen for installation (fig. 1). For correct appliance positioning:

- do not place it on a cooker or other cooking device

- do not leave inflammable products in the room where the boiler is

installed

- heat sensitive walls (for example, wooden walls) must be protected

with proper insulation.

IMPORTANT

Before installation, wash every system piping carefully in order to remove any residues that may impair the operation of the appliance. Connect the discharge manifold to a suitable discharge system (for details, refer to chapter 3.6). The domestic hot water circuit does not need a safety valve, but make sure that the pressure of waterworks does not exceed 6 bar. In case of doubts, install a pressure reducer. Prior to ignition, make sure that the boiler is designed to operate with the gas available; this can be checked by the wording on the packaging and by the adhesive label indicating the gas type. It is very important to highlight that in some cases the smoke pipes are under pressure and therefore, the connections of several elements must be airtight.

3.2 Cleaning the system / characteristics of the heating

circuit water

In the case of a new installation or replacement of the boiler, it is necessary to clean the heating system. To ensure the device works well, top up the additives and/or chemical treatments (e.g. anti-freeze liquids, filming agents, etc.) and check the parameters in the table are within the values indicated.

Parameters Um

Heating

circuit water

Filling water

PH value 7~8 -

Hardness ° F - 15~20

Appearance - clear

Mynute Green E C.S.I.

3.3 Eliminating the air from the heating circuit and boiler

During the initial installation phase, or in the event of extraordinary maintenance, you are advised to perform the following sequence of operations (Fig. 2):

1. Open by two or three turns the automatic relief valve cap (A) and

leave it open.

2. Open the system filling tap located on the water unit.

3. Switch on the electricity supply to the boiler, leaving the gas tap turned off.

4. Activate a heat request via the ambient thermostat or the remote control panel, so that the 3-way valve goes into heating mode.

5. Activate a domestic water request as follows: open a tap for 30” every minute so the 3-way valve passes from heating to domestic water and vice versa about 10 times. In this situation, the boiler will go into alarm mode due to the absence of gas, so it must be reset every time this happens).

6. Continue the sequence until no more air can be heard coming from the air vent valve.

7. Check the system pressure level is correct (the ideal level is 1 bar).

8. Turn off the system filling tap.

9. Turn on the gas tap and ignite the boiler.

3.4 Positioning the wall-mounted boiler and hydraulic

connections

The boiler is supplied as standard with a boiler support plate with built-in pre-assembly template (Fig. 3). The position and dimension of hydraulic fittings are shown in the detail drawing. For the assembly, proceed as follows:

- secure the boiler support plate (F) using the pre-assembly template

(G) to the wall and use a spirit level to make sure that everything is perfectly horizontal

- mark the 4 holes (ø 6 mm) envisaged for securing the boiler sup-

port plate (F) and the 2 holes (ø 4 mm) for securing the pre-assembly template (G)

- make sure that all measurements are exact, then drill the wall us-

ing drill tips with the diameters indicated above

- fix the plate with the built-in template to the wall.

Make the hydraulic connections.

The position and size of the hydraulic connections are indicated below: R heating return line 3/4” M M heating delivery 3/4” M G gas connection 3/4” M AC hot water 1/2” M AF cold water 1/2” M

3.5 Installing the external probe

The correct operation of the external probe, supplied as an accessory, is fundamental for the good operation of the climatic control.

INSTALLING AND CONNECTING THE EXTERNAL PROBE

The probe must be installed on an external wall of the building to be heated, observing the following indications:

- it must be mounted on the side of the building most often exposed

to winds (the NORTH or NORTHWEST facing wall), avoiding direct solar irradiation;

- it must be mounted about 2/3 of the way up the wall;

- it must not be mounted near doors, windows, air outlet points, or

near smoke pipes or other heat sources. The electrical wiring to the external probe is made with a bipolar cable with a section from 0.5 to 1 mm2 (not supplied), with a maximum length of 30 metres. It is not necessary to respect the polarity of the cable when connecting it to the external probe. Avoid making any joints on this cable however; if joints are absolutely necessary, they must be watertight and well protected. Any ducting of the connection cable must be separated from live cables (230V AC)

FIXING THE EXTERNAL PROBE TO THE WALL

The probe must be placed on a smooth part of the wall (Fig. 4); in the case of exposed brickwork or an uneven wall, look for the smoothest possible area. Loosen the plastic upper protective cover by turning it anticlockwise. After deciding on the best fixing area of the wall, drill the holes for the 5x25 wall plug. Insert the plug in the hole. Remove the card from its seat. Fix the box to the wall, using the screw supplied. Attach the bracket, then tighten the screw. Loosen the nut of the cable grommet, then insert the probe connection cable and connect it to the electric clamp. To make the electrical connection between the external probe and the boiler, refer to the “Electrical wiring” chapter.

Remember to close the cable grommet well, to prevent any air

humidity getting in through the opening.

Put the card back in its seat. Close the plastic upper protective cover by turning it clockwise. Tighten the cable grommet very well.

3.6 Condensate collection

The discharge manifold (Fig. 5) collects condensate water, any evacuation water from the safety valve and the system discharge water.

The manifold must be connected via a rubber pipe (not provid-

ed) to an appropriate collection and evacuation system in the white water discharge drain in compliance with current regulations. The outer diameter of the manifold is 20 mm: it is therefore advisable to use a rubber pipe Ø 18-19 mm closed with a suitable clamp (not provided).

The manufacturer is not liable for any damage/flooding result-

ing from the failure to channel the condensate.

Sealing of the condensate drainage connection line must be

guaranteed.

3.7 Electrical wiring

To access the electrical wirings, proceed as follows: To access the terminal board:

- set the system's main switch to off

- undo the fixing screws (A) of the shell (fig. 6)

- move the shell base forward and then upwards to unhook it from the chassis

- lift and then turn the instrument panel upside down (fig. 7)

- remove the electrical parts inspection cover (fig. 8)

The connection to the mains supply must be made via a separation device with an omnipolar opening of at least 3.5 mm (EN 60335/1, category 3). The appliance operates with an alternating current of 230 Volt/50 Hz and complies with the standard EN 60335-1.

It is obligatory to make the connection with a safe ground/earth,

in compliance with current directives.

The installer is responsible for ensuring the appliance is suita-

bly earthed; the manufacturer will not be liable for any damage resulting from an incorrect or absent earth connection

It is also advisable to respect the phase-neutral connection

(L-N).

The ground/earth wire must be a couple of cm longer than the

others.

The boiler can operate with a phase-neutral or phase-phase supply. For power supplies that are not earthed, it is necessary to use an isolating transformer with earth-anchored secondary. It is forbidden to use gas and/or water pipes to earth electrical appliances. Use the power cable supplied to connect the boiler to the mains power supply. If the power cable needs to be replaced, use a cable of the HAR H05V2V2-F type, 3 x 0.75 mm², with a maximum external diameter of 7 mm (fig. 9).

ENGLISH

3.8 Gas connection

Before connecting the appliance to the gas network, check that:

- current prevailing standards have been met

- the gas type is appropriate for the appliance

- the piping is clean. The gas pipe must be installed outdoors. If the pipe has to pass through the wall, it must pass through the central opening in the lower part of the template. It is advisable to install a filter of suitable dimensions on the gas line if the distribution network contains solid particles. Once the appliance has been installed, check the connections are sealed according to current installation regulations.

3.9 Flue gas exhaustion and air aspiration (fig. 10)

For flue gas discharge, refer to Standards UNI-CIG 7129-7131 and UNI 11071. Always comply with local standards of the Fire Department, the Gas Company and with possible municipal dispositions. The discharge of flue gas is guaranteed by the centrifugal fan located inside the combustion chamber. The boiler is supplied without the flue gas outlet/air suction kit, since it is possible to use the accessories for appliance with a forced draught sealed chamber that better adapts to the installation characteristics. It is essential for evacuating fumes and restoring boiler combustion air that only original Riello pipes be used and that the connection is made correctly as shown in the instructions provided with the flue gas accessories. A single smoke pipe can be connected to several appliances provided that every appliance is the condensing type The boiler is a C-type appliance (with airtight chamber), and must therefore have a safe connection to the flue gas discharge pipe and to the combustion air suction pipe; these both carry their contents outside, and are essential for the operation of the appliance. Both concentric and twin terminals are available. As envisaged by Standard UNI 11071, the boiler is designed to take in and dispose of flue gas condensate and/or meteoric water condensate deriving from the flue gas discharge system. It does this via its own drain-tap, if an external drain-tap is not fitted during the design or installation phase.

if a condensate relaunch pump is installed, check the technical

data (provided by the manufacturer) regarding output, to ensure it operates correctly.

POSSIBLE OUTLET CONFIGURATIONS (fig. 11) B23P-B53P - Suction in room, with external outlet. C13-C13x - Concentric wall outlet. Pipes can leave the boiler inde-

pendently, but the outputs must be concentric or near enough in order to be subjected to similar wind conditions (within 50 cm). C23 - Concentric outlet in regular smoke pipe (suction and outlet in the same pipe).

C33-C33x - Concentric roof outlet. Output as C13. C43-C43x - Discharge and suction in common, separate smoke

pipes, but subjected to similar wind conditions. C53-C53x - Separate wall or roof outlet and suction line and in areas with different pressures. Outlet and suction line must never be placed on opposite walls. C63-C63x - Outlet and suction line carried out with pipes marketed and certified separately (1856/1). C83-C83x - Outlet in single or regular smoke pipe and wall suction line. C93-C93x - Discharge on the roof (similar to C33) and air suction from a single existing smoke pipe.

See the prevailing standards.

“FORCED OPEN” INSTALLATION (TYPE B23P/B53P)

Flue gas discharge pipe ø 80 mm (fig. 12)

The flue gas outlet pipe can be directed to the most suitable direction according to installation requirements. For installation, follow the instructions supplied with the kit. In this configuration, the boiler is connected to the flue gas outlet pipe of ø 80 mm through an adaptor of ø 60-80 mm.

In this case, the combustion air is picked up from the boiler

installation room (which must be a suitable technical room with proper ventilation).

The non insulated flue gas outlet pipes are potential sources of

danger.

Arrange the flue gas discharge pipe so it slopes by 3° towards

the boiler.

The boiler automatically adapts the purging to the type of in-

stallation and the length of the pipe.

Maximum length of the flue gas

discharge pipe Ø 80 mm

Pressure loss

45° curve 90° curve

25 C.S.I. 80 m

1 m 1.5 m

30 C.S.I. 80 m

“AIRTIGHT” INSTALLATION (TYPE C)

The boiler must be connected to concentric or twin flue gas discharge pipes and air suction pipes, both leading outdoors. The boiler must not be operated without them.

Concentric pipes (Ø 60-100 mm) (Fig. 13)

The concentric pipes can be fitted in most suitable direction in relation to installation requirements complying with the maximum lengths show on the table.

Arrange the flue gas discharge pipe so it slopes by 3° towards

the boiler.

Non-insulated outlet pipes are potential sources of danger.

The boiler automatically adapts the purging to the type of in-

stallation and the length of the pipe.

Do not obstruct or choke the combustion air suction pipe in any

way.

For installation, follow the instructions supplied with the kit.

Horizontal

Max straight length of concentric

pipe Ø 60-100 mm

Pressure loss

45° curve 90° curve

25 C.S.I. 7.85 m

1.3 m 1.6 m

30 C.S.I. 7.85 m

Vertical

Max straight length of concentric

pipe Ø 60-100 mm

Pressure loss

45° curve 90° curve

25 C.S.I. 8.85 m

1.3 m 1.6 m

30 C.S.I. 8.85 m

"Straight length" means without bends, drainage terminals or

joints.

Concentric pipes (Ø 80-125 mm) (Fig. 14)

For this configuration the specific adaptor kit must be installed. The concentric pipes can be fitted in most suitable direction in relation to installation requirements. For installation, follow the instructions supplied with the specific kits for condensing boilers.

Maximum straight length of

concentric pipe Ø 80-125 mm

Pressure loss

45° curve 90° curve

25 C.S.I. 14.85 m

1 m 1.5 m

30 C.S.I. 14.85 m

"Straight length" means without bends, drainage terminals or

joints.

Mynute Green E C.S.I.

Twin pipes (Ø 80 mm) (Fig. 15)

The twin pipes can face in the direction most suitable for installation requirements. For installation, follow the instructions supplied with the specific accessory kit for condensation boilers.

Arrange the flue gas discharge pipe so it slopes by 3° towards

the boiler.

The boiler automatically adapts the purging to the type of in-

stallation and the length of the pipes. Do not obstruct or choke the pipes in any way.

For the maximum length indications of the individual pipe see

the graphics (fig. 16).

The use of longer pipes reduces the boiler output.

Maximum straight length

of twin pipe Ø 80 mm

Pressure loss

45° curve 90° curve

25 C.S.I. 53+53 m

1 m 1.5 m

30 C.S.I. 42+42 m

Ø 80 twin pipes with Ø 50 and 60 pipework (Fig. 17)

The characteristics of the boiler allow the Ø 80 flue gas discharge pipe to be connected to the Ø 50 or 60 range of pipework.

For the pipework we recommend carrying out a design calcula-

tion in order to comply with the applicable prevailing standards.

The allowed base configurations are indicated in the table.

Base pipe configuration table (*)

Air suction 1 90° ø 80 curve

4.5 m ø 80 pipe

Flue gas exhaust 1 90° ø 80 curve

4.5 m ø 80 pipe Reductio

n from ø 80 to ø 50 or ø 80 to ø 60 flue base curve 90° ø 50 or ø 60 for pipework pipe lengths see the table

(*) Use the plastic (PP) flue accessory systems for condensing boilers that can be found on the residential catalogue price list, ø 50 H1 class and ø 60 P1 class

The boilers come from the factory calibrated to:

- 25 C.S.I.: 4,700 r.p.m. and maximum length reachable is 11 m for the ø 60 pipe and

1 m for the ø 50 pipe

- 30 C.S.I.: 5,600 r.p.m. and maximum length reachable is 14 m for the ø 60 pipe and

2 m for the ø 50 pipe

If you need to reach greater lengths compensate for the pressure drop with an increase of the number of fan rotations as shown in the adjustments table in order to guarantee the rated heat input.

The minimum calibration must not be modified.

If the prevailing value is greater than 200 Pa the law requires the use of H1 pressure class flue accessories

Mynute Green E 25 C.S.I. adjustments table

Maximum number

of fan rotations

(rpm)

Ø 50 pipework pipes

maximum length

Ø 60 pipework pipes

maximum length

ΔP at the boiler

output with

max length (°)

DHW CH

mmPA

4700 3900 1

11 9 0

4800 4000 4

16 120

4900 4100 6

22 150

5000 4200 8

28 180

5100 4300 10

31 (*) 200

5200 4400 14

- 255

5300 4500 17

- 295

5400 4600 20

- 338

5500 4700 23

- 375

5600 4800 26

- 410

5700 4900 28

- 445

5800 5000 32

- 485

5900 5100 35

- 535

6000 5200 38

- 575

6100 5300 41

- 613

6200 5400 44

650

Maximum number

of fan rotations

(rpm)

Ø 50 pipework pipes

maximum length

Ø 60 pipework pipes

maximum length

ΔP at the boiler

output with

max length (°)

DHW CH

mmPA

6300 5500 49

710

Mynute Green E 30 C.S.I. adjustments table

Fan rotations

maximum number

of fan rotations

(rpm)

Ø 50 pipework

pipes

Maximum length

Ø 60 pipework pipes

Maximum length

ΔP at the

boiler output

with max length (°

)

DHW CH

mmPa

5600 4700 2

14 145

5700 4800 4

19 183

5800 4900 5

21 (*) 200

5900 5000 8

- 255

6000 5100 11

- 295

6100 5200 13

- 330

6200 5300 15 377 6300 5400 19 440

(*) Compatible length with P1 class pipes

NOTE

If p

ipes different than those in the Beretta catalogue are used you must see the ΔP values on the above tables to calculate the maximum length of the pipes. The Ø 60 and Ø 50 configurations have experimental, laboratory checked data. In the event of installations other than those indicated in the “base configurations” and “adjustments” table, see the equivalent Ø 80 - Ø 60 or Ø 50 linear lengths shown below.

In any case the maximum lengths declared in the booklet are

guaranteed and it is essential that they are not exceeded.

Ø 60 component

Linear equivalent in

metres Ø 80 (m)

45° Ø 60 curve 5 90° Ø 60 curve 8

0.5 m Ø 60 extension 2.5

1.0 m Ø 60 extension 5.5

2.0 m Ø 60 extension 12

Ø 50 COMPONENT Linear equivalent in

metres Ø 80 (m)

45° Ø 50 curve

12,3

90° Ø 50 curve 19,6

0.5 m Ø 50 extension 6,1

1.0 m Ø 50 extension 13,5

2.0 m Ø 560 extension 29,5

3.11 Installation on collective flues in positive pressure

The collective flue is a gas discharge system suitable for collecting and expelling the combustion products of several appliances installed on several floors of a building (fig. 18). The collective flues in positive pressure can be used only for type C condensing appliances. Consequently the B53P/B23P configuration is not permitted. Installation of the boiler on collective flues in pressure is permitted only at G20 using a specific check valve, supplied as an accessory. See the related instructions for the assembly procedure. The boiler is sized to operate correctly up to a maximum internal pressure of the smoke pipe no higher than the value shown in the multigas table. Complete the check valve assembly operations and proceed with adjustment of the number of fan rotations as shown in the multigas table. Ensure that the air suction pipes and combustion product outlet are airtight. Installation of the check valve (fig. 19) requires the application of the ATTENTION label that comes with the same accessory on a visible part of the boiler shell. Applying the label is essential for safety during maintenance or replacement of the boiler and/or the collective flue.

ENGLISH

WARNINGS

The manufacturer will not be liable in the event of failure to

apply the check valve and the related label prior to placing the boiler in service.

The appliances connected to a collected flue must all be of the

same type and have equivalent combustion characteristics.

The number of appliances that can be connected to a collective

flue in positive pressure is defined by the smoke pipe designer.

MAINTENANCE FOR APPLICATION IN A COLLECTIVE FLUE UNDER PRESSURE

During scheduled maintenance on the appliance you must also check the condition of the check valve in order to guarantee correct operation and safety of the system. Before proceeding with maintenance you must conduct an analysis of the combustion product and check the boiler operating status.

In the event of maintenance on the boiler's combustion circuit

(gas discharge pipes, condensate syphon, burner, electrode conveyors) you must close the gas discharge pipe that comes from the smoke pipe under pressure and check the seal.

Subsequently:

- Remove electrical power by setting the system's main switch to “off”

- Close the gas interception taps

- Remove the shell

- Unhook the instrument panel and rotate it downward

- Unhook and remove the air box cover

- After undoing the related fixing screws, remove the right side of the air box

- Undo the nut that secures the gas train valve to the air box

- Undo and remove the mixer connection gas train (A, fig. 20)

- Remove the ignition electrode and flame detection electrical connections and the fan electrical connections

- Undo the 4 screws that secure the air gas conveyor to the main heat exchanger (B, fig. 20)

- Remove the conveyor-fan assembly from the heat exchanger (C, fig. 20), taking great care not to damage the burner insulating panel

- To access the check valve remove the fan by undoing the 4 screws (D, fig. 21) that secure it to the conveyor

- Ensure that there is no material deposited on the check valve membrane and remove any you may find, ensuring there is no damage.

- Check the correct opening and closing operation of the valve

- Reassemble the components working in reverse order, ensuring that the check valve is reassembled in the correct direction (see fig. 21)

Failure to observe the above may lead to abnormal operation

of the check valve and consequent differences in the boiler's performance, up to failure to operate.

Failure to observe what is described here may compromise the

safety of people and animals due to possible carbon monoxide leaks from the smoke pipe.

Once the operations have been completed, carefully check

all the combustion product exhaust and air suction pipe seals, conducting a combustion analysis.

NOTE

If the fan is removed ensure that the check valve is reassembled in the correct direction (see fig. 21).

3.12 Filling the heating system

Once the hydraulic connections have been carried out, fill the heating system. This operation must be carried out with a cold system, following these instructions (fig. 22):

- open the lower automatic relief valve cap (A) by two or three turns to allow continuous air venting and leave it open

- ensure that the cold water inlet tap is open

- open the filling tap (C) until the pressure indicated on the water gauge is between 1 bar and 1.5 bar (fig. 23)

- re-close the filling tap.

NOTE

deareation of the boiler takes place automatically by means of the two automatic A and E bleed valves (fig. 24), the former positioned on the circulator whereas the latter is positioned inside the air box. If the deareation phase is difficult, operate as described in section 5.3.

3.13 Emptying the heating system

Before starting emptying, switch off the electricity supply by turning off the main switch of the system.

- Close the heating system shut-off devices

- Slacken the discharge system valve by hand (D)

- The system's water is discharged through the discharge manifold (F).

The discharge manifold must be connected via a rubber pipe

to an appropriate collection and evacuation system in the white water discharge drain in compliance with current regulations. The outer diameter of the manifold is 20 mm: it is therefore advisable to use a rubber pipe Ø18-19 mm closed with a suitable clamp (not provided).

3.14 Emptying the domestic hot water circuit

When there is risk of frost, the domestic hot water system must be emptied in the following way:

- close the water mains tap

- open all the hot and cold water taps

- empty the lowest points.

4 - IGNITION AND OPERATION

4.1 Preliminary checks

First ignition is carried out by competent personnel from an authorised Technical Assistance Service Centre. Before starting up the boiler, check: a) that the supply networks data (electric, water, gas) corresponds

to the label data

b) that piping leaving the boiler is covered by thermal insulation

sheath c) that flue gas extraction and air suction pipes work correctly d) that conditions for regular maintenance are guaranteed if the

boiler is placed inside or between furniture e) the seal of the fuel adduction system f) that fuel capacity corresponds to values requested by the boiler g) the correct calibration of the gas valve and, if necessary, adjust

as indicated in paragraph 4.8 “Adjustments” h) that the fuel supply system is sized to provide the correct deliv-

ery to the boiler, and that it has all the safety and control devices

prescribed by national and local regulations.

4.2 Appliance ignition

Each time the boiler is electrically powered the display shows a series of information including the gas probe counter value (-C- XX) (see section 4.4 - fault A09) and then the boiler begins an automatic venting cycle that lasts about 2 minutes. During this phase the symbol will appear on the display (fig. 25).

To interrupt the automatic venting cycle: access the electronic card by removing the shell, turning the instrument panel upside down and opening the electrical parts inspection cover. Subsequently:

- press the CO button (fig. 26).

Live electrical parts (230 Vac).

To start-up the boiler it is necessary to carry out the following operations:

- electrically power the boiler

- unhook the connections cover as indicated in section 3.13 “Con-

nections cover”

- open the gas tap to allow fuel flow

- set the ambient thermostat at the required temperature (~20°C)

- turn the mode selector to the desired position:

Winter

Turning the mode selector (fig. 27) within the area marked with + and

- the boiler provides domestic hot water and heating. The boiler lights automatically in response to a heat request.

Mynute Green E C.S.I.

The digital monitor indicates the heating water temperature (fig. 28). In the event of a request for domestic hot water. The display indicates the domestic hot water temperature (fig. 29).

Adjusting the heating water temperature

To adjust the heating water temperature, turn the knob with the “ ” symbol (fig. 27) clockwise to the area marked with + and -. Depending on the type of system, the most suitable temperature range can be pre-selected:

- standard installations 40-80°C

- floor installations 20-45 °C. For details see section 4.5.

Summer

Turning the selector to the summer symbol (fig. 30) the traditional function of only domestic hot water is activated. The boiler lights automatically in response to a request for domestic hot water. The digital monitor indicates the domestic hot water temperature (fig.29).

Pre-heating (faster hot water)

Positioning the mode selector to summer or winter and turning the domestic hot water temperature adjustment knob to the

symbol (fig. 31) the pre-heating function is activated. Bring the domestic hot water temperature adjustment knob back to the required position. This function keeps the water in the domestic hot water exchanger hot, to reduce standby times when a request is made. The display indicates the outlet temperature of the heating water or the domestic hot water based upon the request in progress. During burner ignition following a pre-heating request, the monitor indicates the

symbol. To deactivate the pre-heating function, rotate the domestic hot water temperature adjustment knob back to the symbol . Bring the domestic hot water temperature adjustment knob back to the required position. This function cannot be activated when the boiler is OFF: mode selector (fig.32) on OFF.

Adjusting the heating water temperature with an external probe connected

When an external probe is installed, the delivery temperature is automatically selected by the system, which quickly adjusts the ambient temperature according to variations in the outside temperature. If you want to alter the temperature value (increasing or reducing the value automatically calculated by the electronic card), use the heating water temperature selector: turn it clockwise to increase the temperature, or anticlockwise to reduce it. The correction possibility is between - 5 and + 5 comfort levels which are shown on the digital display by rotating the knob.

Adjustment of the domestic hot water temperature

To adjust domestic water temperature (bathrooms, showers, kitchen, etc.), turn the knob with the

symbol (fig. 33) within the area marked with + and -. The boiler is in standby until the burner switches on following a heat request. The boiler continues to function until the temperatures set on the boiler are reached, or the heat request terminates; it will then go back to standby. If the red indicator light near the symbol (fig. 34) on the command panel lights up, this means the boiler is in temporary stop status (see the chapter on light signals and faults). The digital monitor indicates the fault code detected (fig. 34).

Automatic Ambient Adjustment System (S.A.R.A.) (fig. 35)

By setting the heating water temperature selector to the area marked by AUTO, the S.A.R.A. self-adjusting system is activated (frequency

0.1 sec. on; - 0.1 sec. off; duration 0.5): according to the temperature set on the ambient thermostat and the time employed to reach it, the boiler varies automatically the heating water temperature reducing the operating time, allowing great operation comfort and energy saving.

Reset function

To restore operation, set the function selector to

off (fig. 36), wait 5-6 seconds then bring it to the required position, checking that the red indicator light is off. At this point the boiler will automatically start and the red lamp switches on in green. N.B. If the attempts to reset the appliance do not activate operation, contact the Technical Assistance Centre.

4.3 Switch-off

Temporary switch-off

In the event of absence for short periods of time, set the mode selector (fig. 36) to (OFF). In this way (leaving the electricity and fuel supplies enabled), the boiler is protected by the following systems: Antifreeze: when the temperature of the water in the boiler drops below 5°C the circulator starts and, if necessary, the burner at minimum output to bring the water temperature to safety values (35°C). During the anti-frost cycle, the symbol (fig. 37) appears on the digital monitor. Circulator antiblocking: an operation cycle is activated every 24 h.

Switching off for lengthy periods

In the event of absence for short periods of time, set the mode selector (fig. 36) to

(OFF). Turn the main system switch OFF. Turn off the fuel and water taps of the heating and domestic hot water system. In this case, anti-frost device is deactivated: empty the systems, in case of risk of frost.

ENGLISH

4.4 Faults

BOILER STATUS DISPLAY TYPES OF ALARMS

Off status(OFF) OFF None

Stand-by - Signal

ACF alarm lockout module

A01

Definitive lockout

ACF electronics fault alarm

Limit thermostat alarm

A02

Definitive lockout

Tacho fan alarm

A03

Definitive lockout

Water pressure switch alarm

A04

Definitive lockout

NTC domestic water fault

A06

Signal

NTC heating outlet fault

A07

Temporary stop

Heating outlet probe over-temperature Temporary then definitive

Outlet/return line probe differential alarm Definitive lockout

NTC heating return line fault

A08

Temporary stop

Heating return line probe over-temperature Temporary then definitive

Outlet/return line probe differential alarm Definitive lockout

Cleaning the primary heat exchanger

A09

Signal

NTC flue gases fault Temporary stop

Flue gases probe over-temperature Temporary then definitive

Parasite flame

A11

Temporary stop

Low temperature system thermostat alarm

A77

Temporary stop

Temporary pending ignition 80°C flashing Temporary stop

Water pressure switch intervention

flashing

Temporary stop

Calibration service

ADJ

Signal

Calibration installer

Chimney sweep

ACO

Signal

Vent cycle

Signal

Pre-heating enabled P Signal

Preheating heat request P flashing Signal

External probe presence

Signal

Domestic water heat request

60°C

Signal

Heating heat request

80°C

Signal

Antifreeze heat request

Signal

Flame present

Signal

Mynute Green E C.S.I.

To restore operation (reset alarms):

Faults A 01-02-03

Set the mode selector to

(OFF), wait 5-6 seconds and then return it to the desired position (summer) or (winter). If the reset attempts do not reactivate the boiler, request the intervention of the Technical Assistance Centre.

Fault A 04

In addition to the fault code, the digital display displays the symbol

. Check the pressure value indicated by the water gauge: if it is less than 0.3 bar, position the function selector on OFF and adjust the filling tap until the pressure reaches a value between 1 and 1.5 bar. “Then position the mode selector to the desired position (summer) or (winter). The boiler will carry out a venting cycle lasting about 2 minutes. If pressure drops are frequent, request the intervention of the Technical Assistance Centre.

Fault A 06

The boiler functions normally but does not guarantee a constant domestic hot water temperature, which remains set at around 50°C. Contact the Technical Assistance Centre.

Fault A 07

Contact the Technical Assistance Centre.

Fault A08

Contact the Technical Assistance Centre.

Fault A09

Set the mode selector to

Fault A09

The boiler is equipped with an auto-diagnostic system which, based on the total number of hours in certain operating conditions, can signal the need to clean the primary exchanger (alarm code 09 with flue gases probe counter >2,500). Once the cleaning operation has been completed, reset to zero the total hour meter with special kit supplied as an accessory following procedure indicated below: disconnect the electrical supply; remove the shell and turn the instrument panel; remove the electrical parts inspection cover, undoing the 2 fixing screws; as you electrically power the boiler press the CO button for at least 4 seconds to check that the counter resets. Remove and restore power to the boiler; on the display the counter is shown after the “-C-” indication.

Live electrical parts (230 Vac).

NOTE

The meter resetting procedure should be carried out after each indepth cleaning of the primary exchanger or if this latter is replaced. To check the status of the totalled hours multiply the value shown by 100 (ex: shown value of 18 = pre totalled 1800 – shown value of 1= totalled hours 100). The boiler continues to operate normally even with the alarm active.

Fault A77

The fault is self-resetting, if the boiler does not restart contact the Technical Assistance Centre.

4.5 Boiler configuration

On the electronic card there is a series of jumpers (JPX) which allow the boiler to be configured; access is possible by removing the electrical parts inspection cover after setting the main switch to off.

To access the card operate as follows:

- set the system's main switch to off

- undo the shell fixing screws, then move the shell base forward and then upwards to unhook it from the chassis

- lift and then turn the instrument panel upside down

- remove the electrical parts inspection cover, undoing the 2 fixing screws to access the jumpers (fig. 38)

JUMPER JP7 - fig. 39:

pre-selection of the most appropriate boiler heating temperature adjustment field depending on the type of system.

Jumper not on - standard system

Standard system 40-80 °C.

Jumper on - floor system

Floor system 20-45 °C. From the factory the boiler is configured for standard systems.

JP1 Enabling front knobs for calibration

JP2 Heating timer reset

JP3 Calibration (see “Adjustments” section)

JP4 Absolute domestic hot water thermostat selector

JP5 do not use

JP6

Enable night-time compensation function and pump in continuous mode (only with external probe connected)

JP7

Enable standard/low temperature systems management (see above)

JP8 Do not use

4.6 Setting the thermoregulation

Thermoregulation works only with the external probe connected, therefore, once installed, connect the external probe to the specific connection provided on the boiler terminal board. This enables the THERMOREGULATION function.

Choice of the compensation curve

CURVE DI TERMOREGOLAZIONE

Temperatura esterna (˚C)

Temperatura di mandata (˚C)

100

-20

0,2

0,4

0,6

0,8

1,0

1,5

2,02,53,0

T80

T45

-15-10-505101520

THERMOREGULATION CURVES

Outside temperature [°C]

Delivery temperature [°C]

T80 - maximum std system heating set point temperature (JP7 not on) T45 - maximum floor system heating set point temperature (JP7 on)

the display shows the value of the KT curves multiplied by 10 (example 3.0 = 30)

The compensation curve for heating maintains a theoretical temperature of 20°C indoors, when the external temperature is between +20°C and -20°C. The choice of the curve depends on the minimum external temperature envisaged (and therefore on the geographical location), and on the delivery temperature envisaged (and therefore

ENGLISH

on the type of system). It is carefully calculated by the installer on the basis of the following formula:

KT =

Design delivery temp - Tshift

20 - Design min outside temp

Tshift = 30 °C standard system 25 °C floor system If the calculation produces an intermediate value between two curves, you are advised to choose the compensation curve nearest the value obtained. Example: if the value obtained from the calculation is 1.3, this is between curve 1.0 and curve 1.5. Choose the nearest curve, i.e. 1.5. Selection of the KT must be made by acting on the P3 trimmer on the card (see multi-wire electrical diagram). To access P3:

1. remove the shell,

2. turn the instrument panel upside down

- remove the electrical parts inspection cover, undoing the 2 fixing screws

Live electrical parts (230 Vac).

The following KT values can be set:

- standard system: 1.0 - 1.5 - 2.0 - 2.5 - 3.0

- floor system: 0.2 - 0.4 - 0.6 - 0.8

and they will be shown on the display for about 3 seconds after the P3 trimmer is turned,

Location

Design minimum

outside temperature

Location

Design minimum

outside temperature

Location

Design minimum

outside temperature

Turin Alexandria Asti Cuneo Alta valle Cuneese Novara Vercelli Aosta Valle d’Aosta Alta valle Aosta Genoa Imperia La Spezia Savona Milan Bergamo Brescia Como Como Province Cremona Mantua Pavia Sondrio Alta Valtellina Varese Trento Bolzano Venice Belluno Padua Rovigo Treviso Verona Verona lake area Verona mountain area

-8

-10

-15

-5

-7

-10

-15

-20 0 0 0 0

-5

-7

-5

-7

-5

-10

-15

-5

-12

-15

-5

-10

-5

-3

-10

Vicenza Vicenza highlands Trieste Gorizia Pordenone Udine Lower Carnia Upper Carnia Tarvisio Bologna Ferrara Forlì Modena Parma Piacenza Piacenza Province Reggio Emilia Ancona Macerata Pesaro Florence Arezzo Grosseto Livorno Lucca Massa Carrara Pisa Siena Perugia Terni Rome Frosinone Latina Rieti

-5

-10

-5

-7

-10

-15

-5

-7

-5

-2

-2 0 0 0 0 0 0 0 0

-2

-2 0 0 2

-3

Viterbo Naples Avellino Benevento Caserta Salerno L’Aquila Chieti Pescara Teramo Campobasso Bari Brindisi Foggia Lecce Taranto Potenza Matera Reggio Calabria Catanzaro Cosenza Palermo Agrigento Caltanissetta Catania Enna Messina Ragusa Syracuse Trapani Cagliari Nuoro Sassari

-2 2

-2

-2 0 2

-5 0 2

-5

-4 0 0 0 0 0

-3

-2 3

-2

-3 5 3 0 5

-3 5 0 5 5 3 0 2

Based on experience, the installer can still choose different curves.

TYPE OF HEAT REQUEST

If an ambient thermostat is connected to the boiler (JUMPER 6 not on) (fig. 40)

The heat request is made by the closure of the room thermostat contact, while the opening of the contact produces a switch-off. The delivery temperature is automatically calculated by the boiler, although the user may interact with the boiler. Using the interface to modify the HEATING, you will not have the HEATING SET-POINT value available, but a value that you can set as preferred between 15 and 25°C. The modification of this value will not directly modify the delivery temperature, but will automatically affect the calculation that determines the value of that temperature, altering the reference temperature in the system (0 = 20°C).

If an hourly timer is connected to the boiler (JUMPER JP6 not on) (fig. JP6 41)

With the contact closed, the heat request is made by the delivery probe, on the basis of the external temperature, to obtain a nominal ambient temperature on DAY level (20°C). The opening of the contact does not produce a switch-off, but a reduction (parallel translation) of the climatic curve on NIGHT level (16°C). This will activate the night time function. The delivery temperature is automatically calculated by the boiler, although the user may interact with the boiler. Using the interface to modify the HEATING, you will not have the HEATING SET-POINT value available, but a value that you can set as preferred between 15 and 25°C. The modification of this value will not directly modify the delivery temperature, but will automatically affect the calculation that determines the value of that temperature, altering the reference temperature in the system (0 = 20°C for DAY level, and 16°C for NIGHT level).

Mynute Green E C.S.I.

4.7 Adjustments

The boiler has already been adjusted by the manufacturer. However, if adjustments must be repeated, for example after special maintenance, replacement of the gas valve or conversion from methane gas to LPG or propane air, observe the following procedures. The adjustment of the maximum and minimum output, the maximum heating and slow ignition, must be made strictly in the sequence indicated, and by qualified personnel only:

1. disconnect the boiler power supply

2. turn the heating water temperature selector to its maximum, selector in correspondence to + (fig. 42)

3. lift and then turn the instrument panel upside down

4. remove the electrical parts inspection cover, undoing the 2 fixing screws

5. insert jumpers JP1 and JP3 (fig. 43)

6. power the boiler.

“ADJ” will appear on the display for about 4 sec Modify the following parameters:

7. absolute/domestic maximum

8. minimum

9. maximum heating

10. slow ignition

as described below:

11. turn the heating water temperature selector to set the desired value

12. press the CO button (fig. 44) and move on to calibration of the next parameter.

Live electrical parts (230 Vac).

The following icons will appear on the display:

1. during absolute/domestic maximum calibration

2. during minimum calibration

3. during heating maximum calibration

4. during slow ignition calibration

End the procedure removing jumpers JP1 and JP3 to store the set values. the function can be terminated at any time without storing the set values and maintaining the previously set ones: removing jumpers JP1 and JP3 before all 4 parameters have been set

- turning the mode selector to OFF/RESET.

- disconnecting the mains voltage.

- 15 minutes after activation.

The calibration does not entail the ignition of the boiler.

By rotating the heating setpoint selector knob, the number of

rotations expressed in hundreds (e.g. 25 = 2500 rpm) is automatically displayed.

The calibration parameter display function is activated with the selector on summer or winter and pressing the CO button on the card regardless of whether or not there is a heat request. The function cannot be activated if a remote control is connected. When this function is activated, the calibration parameters each appear (in the order shown below) for 2 seconds. The relative icon is indicated in line with each parameter, and the fan rotation value (expressed in hundreds)

1. Maximum

2. Minimum

3. Maximum heating

4. Slow ignition

5. Adjusted maximum heating

GAS VALVE CALIBRATION

- Electrically power the boiler.

- Open the gas tap.

- Set the mode selector to OFF/RESET (display off).

- Remove the shell, turn the instrument panel upside down and re-

move the electrical parts inspection cover to access the “CO” button (fig. 45).

Press the “CO” button once.

Live electrical parts (230 Vac).

- Wait for the burner to ignite.

“ACO” appears on the display. The boiler operates at maximum

heating output.

The “combustion analysis” function remains active for a limited

time of 15 minutes; if a delivery temperature of 90°C is reached the burner will extinguish. It will reignite when this temperature drops below 78°C.

- insert the analyser probes in the prescribed positions on the air box after removing the screws and the cover.

- Press the “combustion analysis” button a second time to reach the number of revolutions that corresponds to the maximum domestic hot water output (table 1).

- Check the CO

value: (table 4) if the value does not comply with the indications in the table act on the gas valve max adjustment screw (fig. 45).

- Press the “combustion analysis” button a third time to reach the number of revolutions that corresponds to the minimum output (table 2).

- Check the CO2 value: (table 5) if the value does not comply with the indications in the table act on the gas valve min adjustment screw (fig. 45).

- To exit the “combustion analysis” function turn the command knob.

- Extract the gases analysis probe and refit the plug.

- Close the instrument panel and reassemble the shell.

The “combustion analysis” function automatically deactivates if the card generates an alarm. In the event of a fault during the combustion analysis phase, carry out the reset procedure, acting on the mode selector as described in section 4.4.

Table 1

Maximum

domestic hot

water fan

rotations

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 47 47 rpm 30 C.S.I. 56 56 rpm

Table 2

Minimum number

of fan rotations

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 14 14 rpm 30 C.S.I. 14 14 rpm

Table 3

Maximum number

of heating fan

rotations

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 39 39 rpm 30 C.S.I. 47 47 rpm

Table 4

Max CO

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 9.0 10.0 % 30 C.S.I. 9.0 10.0 %

Table 5

Min CO

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 9.0 10.0 % 30 C.S.I. 9.0 10.0 %

Table 6

Slow ignition

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 33 33 % 30 C.S.I. 33 33 %

4.8 Gas conversion

Conversion from a family gas to other family gas can be performed easily also when the boiler is installed. This operation must be carried out by professionally qualified personnel.

ENGLISH

The boiler is designed to operate with methane gas (G20) according to the product label. It is possible to convert the boiler to propane gas (G31) using the special kit supplied. For disassembly, refer to the instructions provided below (fig. 46):

- remove power supply from the boiler and close the gas tap

- remove in the following order: shell and air box cover

- unhook the instrument panel and turn it forward

- remove the gas train (A)

- remove the nozzle (B) - Fig.- contained in the gas train, and replace it with the one contained in the kit

- refit the gas train (ensure that the gas train connected to the fan mixer is in position)

- refit the air box cover

- power-up the boiler and open the gas tap.

Adjust the boiler following the description in chapter 4.7 “Adjustments” referring to the data relative to the gas in question (G31).

Conversion must be carried out by qualified personnel.

After completing the gas conversion apply the new identifica-

tion label contained in the kit.

5 - REGULAR

To ensure product characteristics and efficiency remain intact and to comply with prescriptions of current regulations, it is necessary to render the appliance to systematic checks at regular intervals. When carrying out maintenance work, observe the instructions given in chapter 1 “Warnings and safety”. Turn off the appliance before carrying out work or maintenance of structures near the flue discharge connections and/or fume discharge devices and their accessories. Once work is completed, a qualified technician must check the efficiency of the appliance.

IMPORTANT

Before carrying out any cleaning or maintenance work on the appliance, use appliance and system switches to interrupt power supply and close the gas supply turning the tap placed on the boiler.

5.1 Routine maintenance

This normally means the following tasks:

- removing any oxidation from the burner;

- removing any scale from the heat exchangers;

- checking and cleaning the drainage pipes;

- checking the external appearance of the boiler;

- checking the ignition, switch-off and operation of the appliance, in both domestic water mode and heating mode;

- checking the seal on the gas and water couplings and pipes;

- checking the gas consumption at maximum and minimum output;

- checking the position of the ignition-flame detection glowplug;

- check the “no gas” safety system;

- check operation of the check valve if it is installed (see section 3.10 “Installation on collective flues in positive pressure”).

Do not clean the appliance or its parts with easily inflammable substances (e.g. benzine, alcohol, etc.). Do not clean panels, painted parts and plastic parts with paint thinner. Panel cleaning must be carried out only with soapy water.

5.2 Extraordinary maintenance

These tasks restore appliance operation in accordance with the design and regulations - e.g. following the repair of an accidental fault. This normally means:

- replacement

- repair

- overhaul of components. These tasks require special means, equipment and tools.

During the initial installation phase, or in the event of extraor-

dinary maintenance, you are advised to activate the procedure to discharge air from the heating circuit and boiler (see section

3.3).

5.3 Checking the combustion parameters

To carry out the combustion analysis, proceed as follows:

- Set the mode selector to to switch off the boiler (fig. 47)

- Turn the domestic hot water temperature selector to the position (fig. 47)

- Wait for the burner to ignite (about 6 seconds). The display shows “ACO” and the boiler operates at maximum heating output

- Remove the screw C and the cover E on the air box (see fig. 48)

- insert the analyser probes in the prescribed positions on the air box

The flue gas analysis probe should be inserted until its reaches

the stop.

- Check that the CO

values correspond to the ones indicated in the tables shown below”; if the value shown is different proceed with changes as indicated in the “Gas valve calibration” chapter.

Max CO

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 9.0 10.0 % 30 C.S.I. 9.0 10.0 %

Min CO

Methane

gas (G20)

Liquid gas

(G31)

25 C.S.I. 9.0 10.0 % 30 C.S.I. 9.0 10.0 %

- Perform the combustion check. The “combustion analysis” function remains active for a limited

time of 15 minutes; if a delivery temperature of 90°C is reached the burner will extinguish. It will reignite when this temperature drops below 78°C.

- If you want to interrupt the procedure turn the domestic hot water temperature selector so that it is within the + and - symbols.

Subsequently:

- remove the analyser probe and close the combustion analysis inlet

- close the instrument panel and refit the shell

When checks are completed:

- Position the knobs depending on the type of operation desired.

6 - CIRCULATOR SETTINGS

Circulator residual discharge head

The boilers is equipped with an already hydraulically and electrically connected circulator, whose useful available performance is indicated in the graph. The circulator comes set from the factory with a 6 metre discharge head curve. The boiler is equipped with an anti-blocking system which starts up an operation cycle after every 24 hours in standby with the mode selector in any position.

The "antiblocking" function is active only if the boiler is electri-

cally powered.

Operating the circulator without water is strictly forbidden.

If you need to use a different curve you can select the desired level on the circulator.

Below the main characteristics and the ways to set up their desired operation are listed.

User interface

The user interface is made up of a button (A), a two-coloured red / green LED (B) and four yellow LEDs (C) arranged in a row (fig. 49). The user interface allows the operating performance to be viewed (operating status and alarm status) and it also allows the circulator operating modes to be set.

Mynute Green E C.S.I.

The performance, indicated by the LEDs (B) and (C) is always visible during normal operation of the circulator whereas the settings can be carried out by pressing the button (A) (fig. 49).

Operating status indication

When the circulator is in operation the LED (B) is green (fig. 49). The four yellow LEDs (C) indicate the electrical energy consumption (P1) as shown in the following table

LED status CIRCULATOR status

Consumption in % of MAX P1 (*)

Green LED on + 1 yellow LED on

Operating at minimum 0~25

Green LED on +

2 yellow LEDs on

Operating at

minimum-medium

25~50

Green LED on +

3 yellow LEDs on

Operating at medium-

maximum

50~75

Green LED on +

4 yellow LEDs on

Operating at maximum 100

(*) For the power (P1) absorbed by the circulator see the indications in the “Technical Data” table.

Alarm status indication

If the circulator has detected one or more alarms the two-coloured LED (B) will be red (fig. 49). The four yellow LEDs (C) indicate the type of alarm as shown in the following table.

LED status

ALARM

description

Status

CIRCULATOR

Possible

SOLUTION

Red LED on +

1 yellow LED

on (LED 5)

The drive shaft

is jammed

Start attempt

every 1.5

seconds

Wait or unjam the drive shaft

Red LED on +

1 yellow LED

on (LED 4)

Low input

voltage

Warning only. The circulator

continues to

operate

Check the

input voltage

Red LED on +

1 yellow LED

on (LED 3)

Electrical power

supply fault or

faulty circulator

The circulator

is stopped

Check the

electrical

power supply

or replace the

circulator

If there are several alarms the circulator will display only the

alarm with the highest priority.

Display of active settings

With the circulator powered, press briefly on the button (A) to view the active configuration of the circulator (fig. 49). The LEDs indicate the active settings. In this phase no variations can be made to the circulator configuration. Two seconds after the button (A) has been pressed the user interface returns to the normal operating status display.

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300

100

150

200

250

300

350

400

450

500

550

600

Modulation area

Discharge head [mbar]

6 METRES DISCHARGE HEAD

System capacity [l/h]

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400

100

150

200

250

300

350

400

450

500

550

600

650

Modulation area

Discharge head [mbar]

7 METRES DISCHARGE HEAD

System capacity [l/h]

0 100 200 300 400 500 600 700 800 900 1000 1100 1200

100

150

200

250

300

350

400

450

500

Modulation area

Discharge head [mbar]

5 METRES DISCHARGE HEAD

System capacity [l/h]

0 100 200 300 400 500 600 700 800 900 1000 1100

100

150

200

250

300

350

400

4 METRES DISCHARGE HEAD

Modulation area

System capacity [l/h]

Discharge head [mbar]

ENGLISH

Key lock function

The purpose of the key lock function is to prevent accidental modifications to the settings or the improper use of the circulator. When the key lock function is activated, long-pressing the button (A) is prevented. This prevents the user from entering the circulator's operating modes setting section. Enabling/disabling the key lock function is achieved by pressing the button (A) (fig. 49) for more than 10 seconds. During this step all of the LEDs (C) will flash for 1 second.

Changing the operating mode (fig. 50)

In normal operating conditions the circulator works with the factory settings or the last settings carried out. To change the configuration: Ensure that the key lock function is deactivated. Press the button (A) for more than 2 seconds until the LEDs begin to flash. Short-press the button (A) within 10 seconds and the user interface will move on to display the next settings. The various available settings will appear in a cyclic sequence. If the button (A) is not pressed, the last setting will be stored (fig. 49). If the button (A) is pressed you can move back to the “active settings display” again and check that the LEDs (B) and (C) indicate (for 2 seconds) the last setting carried out. If the button (A) is not pressed for more than 2 seconds the user interfaces switches to the “Operating status display”. The available settings are shown in fig. 51 along with the related representation of LED (B) and (C).

IMPORTANT

If the 3 (5 metres) or 4 (4 metres) curves are set the bypass must be replaced with the one supplied, following the procedure indicated below (fig. 52): Remove boiler electrical power by setting the system's main switch to off. Close the system taps and empty the boiler heating circuit. Extract the bypass body cover fixing spring (D). Extract the bypass body cover (E). Replace the bypass valve (F) with the one included. Refit the bypass body cover and its spring.

Mynute Green E C.S.I.

USER

A - GENERAL WARNINGS

The instruction manual is an integral part of the product and it must therefore be kept carefully and must accompany the appliance; if the manual is lost or damaged, another copy must be requested from the Technical Assistance Service.

The instruction manual is an integral part of the product and

it must therefore be kept carefully and must accompany the appliance; if the manual is lost or damaged, another copy must be requested from the Technical Assistance Service.

This boiler may only be installed and serviced by qualified per-

sonnel who comply with the national and local current regulations according to Ministerial Decree 37 of 2008 and in compliance with UNI-CIG 7129 and 7131 standards and as updated and amended.

For the installation, you are advised to contact specialised per-

sonnel.

The boiler must only be used for the application foreseen by

the manufacturer. The manufacturer shall not be liable for any damage to persons, animals or property due to errors in installation, calibration, maintenance or due to improper use.

The safety and automatic adjustment devices must not be

modified, during the system life cycle, by the manufacturer or supplier.

This appliance produces hot water, therefore it must be con-

nected to a heating system and/or a domestic hot water mains, compatible with its performance and output.

In case of water leakage, close the water supply and contact

the Technical Assistance Service immediately.

In case of absence for long periods time, close the gas supply

and switch off the electrical supply main switch. If there is a risk of frost, drain the boiler.

From time to time check that the operating pressure of the hy-

draulic system does not decrease under 1 bar.

In case of failure and/or malfunctioning, deactivate the appli-

ance, and do not try to repair or intervene directly on it.

Appliance maintenance must be carried out at least once a

year: scheduling it with the Technical Assistance Service will avoid wasting time and money.

Based on D.P.R. 16 April 2013 No. 74 the qualified engineer

pursuant to Ministerial Decree 22 January 2008 No. 37 (installing or servicing company), must establish the requirements and frequency of the inspection operations and any system service in order to guarantee the required safety. In the absence of these, the manufacturer's indications will prevail.

At the end of its life, the product should be not be disposed of

as solid urban waste, but rather it should be handed over to a differentiated waste collection centre.

B - FOR YOUR SAFETY

Boiler use requires to strictly observe some basic safety rules:

Do not use the appliance in any manner other than its intended

purpose.

It is dangerous to touch the appliance with wet or damp body

parts and/or in bare feet.

Under no circumstances cover the intake grids, dissipation

grids and ventilation vents in the installation room with cloths, paper or any other material.

Do not activate electrical switches, telephone or any other ob-

ject that causes sparks if there is a smell of gas. Ventilate the room by opening doors and windows and close the gas central tap.

Do not place anything in the boiler.

Do not perform any cleaning operation if the appliance is not

disconnected from the main power supply.

Do not cover or reduce ventilation opening of the room where

the generator is installed.

Do not leave containers and inflammable products in the instal-

lation room.

Do not attempt to repair the appliance in case of failure and/or

malfunctioning.

It is dangerous to pull or twist the electric cables.

it is forbidden to intervene on sealed elements.

Children or unskilled persons must not use the appliance.

It is forbidden to obstruct the condensate outlet.

For better use, remember that:

- a periodic external cleaning with soapy water not only improves its aesthetic aspect but also preserves panelling from corrosion, extending its life cycle;

- if the wall-mounted boiler is enclosed in pendant furniture, leave at least 5 cm for ventilation and maintenance;

- installation of an ambient thermostat will favour a greater comfort, a more rational use of the heat and energy saving; the boiler can also be connected to a programming clock in order to manage ignition and switching off during the day or week.

C - IGNITION

Activation of the boiler's Statutory Warranty must be carried out by the Technical Assistance Service. At the same time, if it is necessary to put the appliance in service again, carefully follow the described operations. Each time the boiler is electrically powered, it begins an automatic venting cycle that lasts about 2 minutes. During this phase the symbol will appear on the display (fig. 25). To start-up the boiler it is necessary to carry out the following operations:

- electrically power the boiler;

- open the gas tap present in the system to allow fuel flow;

- adjust the ambient thermostat to the required temperature (~20°C);

- turn the mode selector to the desired position.

Winter

Turning the mode selector within the area marked with + and - (fig.

27) the boiler provides domestic hot water and heating. The boiler lights automatically in response to a heat request. The digital monitor (5) indicates the heating water temperature (fig.

28). The boiler ignites automatically in response to a request for domestic hot water and the display (5) indicates the domestic hot water temperature (fig. 29).

Adjusting the heating water temperature

To adjust the heating water temperature, turn the knob with the “

” symbol (fig. 27) so that it is within the area marked with

+ and -.

ENGLISH

Adjusting the heating water temperature with an external probe connected

When an external probe is installed, the delivery temperature is automatically selected by the system, which quickly adjusts the ambient temperature according to variations in the outside temperature. If you want to alter the temperature value (increasing or reducing the value automatically calculated by the electronic card), use the heating water temperature selector: turn it clockwise to increase the temperature, or anticlockwise to reduce it. The correction possibility is between -5 and +5 levels of comfort, shown on the digital display by rotating the knob.

Summer

Turning the mode selector to the summer symbol

(fig. 30) the traditional function of only domestic hot water is activated. The boiler ignites automatically in response to a request for domestic hot water and the digital monitor (5) indicates the domestic hot water temperature (fig. 4.3b).

Pre-heating (faster hot water)

Positioning the mode selector to summer or winter and turning the domestic hot water temperature adjustment knob to the

symbol (Fig. 31) the pre-heating function is activated. Bring the domestic hot water temperature adjustment knob back to the required position. This function keeps the water in the domestic hot water exchanger hot, to reduce standby times when a request is made. When the pre-heating function is enabled, the

symbol is on (fig. 31). The display indicates the outlet temperature of the heating water or the domestic hot water based upon the request in progress. During burner ignition following a pre-heating request, the monitor indicates the symbol. To deactivate the pre-heating function, rotate the domestic hot water temperature adjustment knob back to the symbol . Bring the domestic hot water temperature adjustment knob back to the required position. This function cannot be activated when the boiler is OFF: mode selector set to (OFF) (fig. 32).

Adjustment of the domestic hot water temperature

To adjust domestic water temperature (bathrooms, showers, kitchen, etc.), turn the knob with the

symbol (fig. 33) within the area marked with + and -. The boiler is in standby until the burner switches on following a heat request. The boiler continues to function until the temperatures set on the boiler are reached, or the heat request terminates; it will then go back to standby. If the red indicator light near the symbol (Fig. 34) on the command panel lights up, this means the boiler is in temporary stop status (see the chapter on light signals and faults). The digital monitor indicates the fault code detected (fig. 34).

Automatic Ambient Adjustment System (S.A.R.A.) (fig. 35)

By setting the heating water temperature selector to the area marked by AUTO, the S.A.R.A. self-adjusting system is activated (frequency

Reset function

To restore operation, set the mode selector to

D - SWITCHING OFF

Temporary switch-off

Switching off for lengthy periods

In the event of absence for short periods of time, set the mode selector (fig. 36) to

E - LIGHT SIGNALS AND FAULTS

BOILER STATUS DISPLAY TYPES OF ALARMS

Off status (OFF) OFF None

Stand-by - Signal

ACF alarm lockout module

A01

Definitive lockout

ACF electronics fault alarm

Limit thermostat alarm

A02

Definitive lockout

Tacho fan alarm

A03

Definitive lockout

Water pressure switch alarm

A04

Definitive lockout

NTC domestic water fault

A06

Signal

+ 42 hidden pages

Beretta Mynute Green E 25 C.S.I., Mynute Green E 30 C.S.I. Installer And User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual