Immergas MINI EOLO 24 3E Instruction And Warning Book

Brand: Immergas

Model: MINI EOLO 24 3E

Type: Instruction And Warning Book

MINI EOLO

24 3E

Instruction and

warning book

*1.038773ENG*

Dear Client,

Our compliments for having chosen a top-quality Immergas product, able to assure well-being and safety for a long period of time. As an Immergas customer

you can also count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your boiler. Read the following pages carefully: you

will be able to draw useful suggestions regarding the correct use of the appliance, the respect of which, will conrm your satisfaction for the Immergas product.

For assistance and scheduled maintenance contact Authorised Aer-Sales centres: they have original spare parts and are specically trained directly by the

manufacturer.

General recommendations

All Immergas products are protected with suitable transport packaging.

 e material must be stored in dry environments protected against bad weather.

 e instruction book is an integral and essential part of the product and must be consigned to the new user also in the case of transfer or succession of ownership.

It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.

 is instruction manual provides technical information for installing the Immergas kit. As for the other issues related to boiler installation (e.g. safety in the

work site, environment protection, injury prevention), it is necessary to comply with the provisions specied in the current regulation and technical standards.

In compliance with legislation in force, the systems must be designed by qualied professionals, within the dimensional limits established by the Law. Installation

and maintenance must be performed in compliance with the regulations in force, according to the manufacturer's instructions and by professionally qualied

sta, intending sta with specic technical skills in the plant sector, as envisioned by the Law.

Improper installation or assembly of the Immergas appliance and/or components, accessories, kit and devices can cause unexpected problem to persons, animals

and objects. Read the instructions provided with the product carefully to ensure a proper installation.

Maintenance must be carried out by skilled technical sta. e Authorised Aer-sales Service represents a guarantee of qualications and professionalism.

 e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore potentially

dangerous.

If errors occur during installation, operation and maintenance, due to non compliance with technical laws in force, standards or instructions contained in this

book (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages and the

appliance warranty is invalidated.

e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial

documents without forewarning.

Product not intended for EU countries

INDEX

USER pageINSTALLER page MAINTENANCE TECHNICIAN page

1 Installation boiler ...................................... 5

1.1 Installation recommendations. ................5

1.2 Main dimensions. ......................................6

1.3 Anti-freeze protection. .............................6

1.4 Connections. ..............................................7

1.5 Remote controls and room chrono-

thermostats (Optional). ............................8

1.6 External probe (Optional). ......................8

1.7 Immergas ue systems. .............................9

1.8 Tables of Resistance Factors and

Equivalent Lengths. ................................10

1.9 Outdoor installation in partially

protected area. .........................................11

1.10 Concentric horizontal kit installation. .12

1.11 Concentric vertical kit installation. ......13

1.12 Separator kit installation. .......................14

1.13 Conguration type B, open chamber and

forced draught for indoors. ....................16

1.14 Flue exhaust to ue/chimney. ................ 16

1.15 Ducting of ues or technical slots. ........16

1.16 Flues, chimneys and chimney caps. ......16

1.17 System lling. ...........................................16

1.18 Gas system start-up. ................................16

1.19 Boiler start up (ignition). .......................16

1.20 Circulation pump. ................................... 17

1.21 Kits available on request. ........................17

1.22 Boiler components. ................................. 18

2 Instructions for use and maintenance .. 19

2.1 Cleaning and maintenance. ...................19

2.2 General warnings ....................................19

2.3 Control panel. .......................................... 19

2.4 Using the boiler........................................20

2.5 Fault and anomaly signals. ..................... 20

2.6 Boiler shutdown ......................................21

2.7 Restore heating system pressure............21

2.8 Draining the system. ............................... 21

2.9 Anti-freeze protection. ...........................21

2.10 Case cleaning. ..........................................21

2.11 Decommissioning. ..................................21

3 Commissioning the boiler

(initial check) ........................................... 22

3.1 Hydraulic Diagram. ................................22

3.2 Wiring diagram. ......................................23

3.3 Troubleshooting ......................................23

3.4 Information Menu. .................................24

3.5 Programming the P.C.B. ......................... 24

3.6 Converting the boiler to other

types of gas. .............................................. 25

3.7 Checks following conversion to another

type of gas. ................................................25

3.8 Possible adjustments ............................... 26

3.9 Automatic slow ignition function with

timed ramp delivery. ............................... 26

3.10 “Chimney sweep function”. .................... 26

3.11 Pump anti-block function. .....................26

3.12 three-way anti-block system. ................. 26

3.13 Radiators anti-freeze function. ..............26

3.14 P.C.B. periodical self-check. ...................26

3.15 Solar panels coupling function. .............26

3.16 Casing removal. ....................................... 27

3.17 Yearly appliance check and

maintenance. ............................................ 29

3.18 Variable heat output

Fan power: 30W ...................................... 29

3.19 Combustion parameters.

Fan power: 30W ...................................... 29

3.20 Technical data.

Fan power: 30W ...................................... 30

3.21 Variable heat output.

Fan power: 33W / 39W ..........................31

3.22 Combustion parameters.

Fan power: 33W / 39W ..........................31

3.23 Technical data.

Fan power: 33W / 39W ..........................31

3.24 Data plate key. ..........................................32

1-1

INSTALLERUSER

MAINTENANCE TECHNICIAN

1 INSTALLATION

BOILER

1.1 INSTALLATION

RECOMMENDATIONS.

e Mini Eolo 24 3E boiler has been designed

for wall mounted installation only; for heating

environments and production of domestic hot

water for domestic use and similar purposes.

e place of installation of the appliance and

relative Immergas accessories must have suitable

features (technical and structural) such to allow

(always in safety, eciency and easy conditions):

- installation (according to the provisions of

technical legislation and technical regulations);

- maintenance operations (including scheduled,

periodic, routine, special);

- removal (to outdoors in the place for

loading and transporting the appliances

and components) as well as the eventual

replacement of those with appliances and/or

equivalent components.

e wall surface must be smooth, without any

protrusions or recesses enabling access to the

rear part. ey are NOT designed to be installed

on plinths or oors (Fig. 1-1).

By varying the type of installation the

classication of the boiler also varies, precisely:

- Boiler type B22, if installed without the 2

intake caps and with the top cover kit.

- Boiler type C, if installed using concentric

pipes or other types of pipes envisioned for

the sealed chamber boiler for intake of air and

expulsion of fumes.

Only professionally enabled heating/plumbing

technicians are authorised to install Immergas

gas appliances. Installation must be carried

out according to regulation standards, current

legislation and in compliance with local

technical regulations and the required technical

procedures. Installation of the Mini Eolo 24 3E

boiler when powered by LPG must comply with

the rules regarding gases with a greater density

than air (remember, as an example, that it is

prohibited to install plants powered with the

above-mentioned gas in rooms where the oor

is at a lower quota than the average external

country one).

Attention: the manufacturer declines all liability

for damages caused by boilers removed from

other systems or for any non-conformities of

such equipment.

Before installing the appliance, ensure that it

is delivered in perfect condition; if in doubt,

contact the supplier immediately. Packing

materials (staples, nails, plastic bags, polystyrene

foam, etc.) constitute a hazard and must be kept

out of the reach of children. If the appliance

is installed inside or between cabinets, ensure

sucient space for normal servicing; therefore

it is advisable to leave clearance of at least 3

cm between the boiler casing and the vertical

sides of the cabinet. Leave adequate space above

the boiler for possible water and ue removal

connections.

Keep all flammable objects away from the

appliance (paper, rags, plastic, polystyrene, etc.).

Do not place household appliances underneath

the boiler as they could be damaged if the safety

valve intervenes with obstructed conveying

system (the safety valve must be conveyed away

by a draining funnel), or if there are leaks from

the hydraulic connections; on the contrary, the

manufacturer cannot be held responsible for any

damage caused to the household appliances. For

the aforementioned reasons, we recommend not

placing furnishes, furniture, etc.under the boiler.

In the event of malfunctions, faults or incorrect

operation, turn the appliance o immediately

and contact a qualified technician (e.g. the

Authorized Technical Aer-Sales Centre, which

has specically trained sta and original spare

parts) Do not attempt to modify or repair the

appliance alone. Failure to comply with the above

implies personal responsibility and invalidates

the warranty.

• Installation Standards:

- is boiler can be installed outdoors in a

partially protected area. A partially protected

area is one in which the appliance is not

exposed to the direct action of the weather

(rain, snow, hail, etc..).

N.B.: a partially protected location is one in

which the appliance is not exposed to the direct

action of the weather (rain, snow, hail, etc..).

- Installation in places with a fire risk is

prohibited (for example: garages, closed

parking stalls), gas appliances and relative ue

ducts, ue exhaust pipes and combustion air

intake pipes.

- Installation is prohibited on the vertical

projection of the cooking surface.

- Installation is also prohibited in places/

environments that constitute common parts

of oce condominiums such as stairs, cellars,

entrance halls, attics, los, escape routes,

etc. if they are not located inside technical

compartments under the responsibility of

each individual building and only accessible

to the user (for the features of the technical

rooms, see the regulation in force.

Attention: wall mounting of the boiler must

guarantee stable and ecient support for the

generator.

 e plugs (standard supply) are to be used only in

conjunction with the mounting brackets or xing

template to x the appliance to the wall; they only

ensure adequate support if inserted correctly

(according to technical standards) in walls made

of solid or semi-hollow brick or block. In the

case of walls made from hollow brick or block,

partitions with limited static properties, or in any

case walls other than those indicated, a static test

must be carried out to ensure adequate support.

N.B.: the hex head screws supplied in the blister

pack are to be used exclusively to x the relative

mounting bracket to the wall.

ese boilers are used to heat water to below

boiling temperature in atmospheric pressure.

They must be attached to a heating system

suitable for their capacity and voltage.

They cannot be connected directly to low-

temperature systems.

YES NO

1-2

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.2 MAIN DIMENSIONS.

Key:

G - Gas supply

AC - Domestic hot water outlet

ACV - Solar valve kit DHW inlet

(Optional)

AF - Domestic cold water inlet

R - System return

M - System ow

V - Electrical connection

N.B.: connection group (Optional)

Height

(mm)

Width

(mm)

Depth

(mm)

781 440 240

CONNECTIONS

GAS DOMESTIC

HOT WATER SYSTEM

GAC AF R M

3/4” 1/2” 1/2” 3/4” 3/4”

1.3 ANTIFREEZE PROTECTION.

Minimum temperature -5°C. Minimum

temperature -5°C. e boiler is supplied with

an anti/freeze function as standard that activates

the pump and burner when the system water

temperature in the boiler falls below 4°C.

e anti-freeze function is only guaranteed if:

- the boiler is correctly connected to gas and

electricity power supply circuits;

- the boiler is powered constantly;

- the boiler is not in 'no ignition block' mode

(Par. 2.5);

- the boiler essential components are not faulty.

In these conditions the boiler is protected against

freezing to an ambient temperature of -5°C.

Minimum temperature -15°C. If the boiler is

installed in a place where the temperature falls

below -5°C and in the event there is no gas (or

the boiler goes into ignition block), the appliance

can freeze.

To prevent the risk of freezing follow the

instructions below:

- protects the central heating circuit from

freezing by introducing a top quality anti-freeze

liquid into this circuit, which is not noxious to

health. e instructions of the manufacturer

of this liquid must be followed scrupulously

regarding the percentage necessary with

respect to the minimum temperature at which

the system must be kept. An aqueous solution

must be made with potential pollution class of

water 2.

 e materials used for the central heating circuit

of Immergas boilers resist ethylene and propylene

glycol based antifreeze liquids (if the mixtures are

prepared perfectly).

For life and possible disposal, follow the

supplier's instructions.

- Protect the condensate drain trap and circuit

board against freezing by using an accessory

that is supplied on request (anti-freeze kit)

comprising two electric heating elements,

the relevant cables and a control thermostat

(carefully read the installation instructions

contained in the accessory kit pack).

Boiler anti-freeze protection is thus ensured only if:

- the boiler is correctly connected to electricity

power supply circuits;

- the main switch is on;

- the anti-freeze kit components are ecient.

In these conditions the boiler is protected against

freezing to temperature of -15°C.

The warranty does not cover damage due to

interruption of the electrical power supply and

failure to comply with that stated on the previous

page.

N.B.: if the boiler is installed in places where

the temperature falls below 0°C, the heating

attachment pipes must be insulated.

1-3

CAVO ALIMENTAZIONE

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.4 CONNECTIONS.

Gas connection

(Appliance category II2H3+).

Our boilers are designed to operate with methane

gas (G20) or LPG. Supply pipes must be the same

as or larger than the 3/4”G boiler tting. Before

connecting the gas line, carefully clean inside

all the fuel feed system pipes to remove any

residue that could impair boiler eciency. Also

make sure the gas corresponds to that for which

the boiler is prepared (see boiler data-plate).

If dierent, the appliance must be converted

for operation with the other type of gas (see

converting appliance for other gas types). e

dynamic gas supply (methane or LPG) pressure

must also be checked according to the type used

in the boiler, which must be in compliance, as

insucient levels can reduce generator output

and cause malfunctions.

Ensure correct gas cock connection. e gas

supply pipe must be suitably dimensioned

according to current regulations in order to

guarantee correct gas ow to the burner even

in conditions of maximum generator output

and to guarantee appliance eciency (technical

specifications). The coupling system must

conform to standards.

Fuel gas quality. The appliance has been

designed to operate with gas free of impurities;

otherwise it is advisable to fit special filters

upstream from the appliance to restore the

purity of the gas.

Storage tanks (in case of supply from LPG

depot).

- New LPG storage tanks may contain residual

inert gases (nitrogen) that degrade the mixture

delivered to the appliance casing functioning

anomalies.

- Due to the composition of the LPG mixture,

layering of the mixture components may occur

during the period of storage in the tanks. is

can cause a variation in the heating power of

the mixture delivered to the appliance, with

subsequent change in its performance.

Hydraulic connection.

Attention: In order not to void the warranty

before making the boiler connections, carefully

clean the heating system (pipes, radiators, etc.))

with special pickling or de-scaling products to

remove any deposits that could compromise

correct boiler operation.

A chemical treatment of the thermal system

water is required, in compliance with the

technical standards in force, in order to protect

the system and the appliance from deposits (e.g.,

lime scale), slurry or other hazardous deposits.

Water connections must be made in a rational

way using the couplings on the boiler template.

e boiler safety valve outlet must be connected

to a draining funnel. Otherwise, the manufacturer

declines any responsibility in case of ooding if

the drain valve cuts in.

Attention: the manufacturer declines all liability

in the event of damage caused by the installation

of an automatic lling system.

Attention: to preserve the duration of appliance

eciency features, in the presence of water whose

features can lead to the deposit of lime scale,

installation of the “polyphosphate dispenser” kit

is recommended.

Electrical connection. e "Mini Eolo 24 3E"

boiler has an IPX5D protection rating for the

entire appliance. Electrical safety of the appliance

is reached only when it is correctly connected

to an ecient earthing system as specied by

current safety standards.

Attention: the manufacturer declines any

responsibility for damage or physical injury

caused by failure to connect the boiler to an

ecient earth system or failure to comply with

the reference standards.

Also ensure that the electrical installation

corresponds to maximum absorbed power

specications as shown on the boiler data-plate.

Boilers are supplied complete with a special “X”

type power cable without plug. e power supply

cable must be connected to a 230V ±10% / 50Hz

mains supply respecting L-N polarity and earth

connection ; this network must also have a

multi-pole circuit breaker with class III over-

voltage category. When replacing the power

supply cable, contact a qualied technician (e.g.

the Authorized Aer-Sales Technical Assistance

Service). e power cable must be laid as shown

(Fig. 1-3).

In the event of mains fuses replacement on the

connection board, use a 3.15A quick-blow fuses.

For the main power supply to the appliance,

never use adapters, multiple sockets or extension

leads.

POWER CABLE

1-4

1-6

1-5

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.5 REMOTE CONTROLS AND

ROOM CHRONOTHERMOSTATS

OPTIONAL.

e boiler is prepared for the application of room

chrono-thermostats or remote controls, which

are available as optional kits (Fig. 1-4).

All Immergas chrono-thermostats are connected

with 2 wires only. Carefully read the user and

assembly instructions contained in the accessory

kit.

• On/O digital chrono-thermostat. e chrono-

thermostat allows:

- set two room temperature value: one for day

(comfort temperature) and one for night

(lower temperature);

- set a weekly programme with four daily

switch on and switch o times;

- selecting the required function mode from

the various possible alternatives:

- manual mode (with adjustable temperature).

- automatic mode (with set programme).

- forced automatic mode (momentarily

changing the temperature of the automatic

programme).

e chrono-thermostat is powered by two 1.5V

LR 6 type alkaline batteries.

• Comando Amico Remoto Remote Control

DeviceV2 (CARV2) with climate chrono-

thermostat function. In addition to the

functions described in the previous point, the

CARV2 panel enables the user to control all the

important information regarding operation

of the appliance and the heating system with

the opportunity of easily intervening on the

previously set parameters without having to

go to the place where the appliance is installed.

e panel is provided with self-diagnosis to

display any boiler functioning anomalies.

e climate chrono-thermostat incorporated

into the remote panel enables the system ow

temperature to be adjusted to the actual needs

of the room being heated, in order to obtain

the desired room temperature with extreme

precision and therefore with evident saving in

running costs. e chrono-thermostat is fed

directly by the boiler by means of the same 2

wires used for the transmission of data between

boiler and chrono-thermostat.

Comando Amico Remoto Remote ControlV2

or On/Off chrono-thermostat electrical

connections (Optional). The operations

described below must be performed aer having

removed the voltage from the appliance. Any

thermostat or On/Off environment chrono-

thermostat must be connected to clamps 40 and

41 eliminating jumper X40 (Fig. 3-2). Make sure

that the On/O thermostat contact is “dry”, i.e.

independent of the mains supply, otherwise the

P.C.B. would be damaged. Any Comando Amico

Remoto remote controlV2 must be connected to

clamps 40 and 41 eliminating jumper X40 on the

circuit board, paying attention not to invert the

connections (Fig. 3-2).

Important: if the Remote Friend Control, remote

controlV2 or any other On/O chrono-thermostat

is used arrange two separate lines in compliance

with current regulations regarding electrical

systems. No boiler pipes must ever be used to

earth the electric system or telephone lines.

Ensure elimination of this risk before making

the boiler electrical connections.

1.6 EXTERNAL PROBE OPTIONAL.

e boiler is designed for the application of the

Room ermostat (Fig. 1-5) which is available as

an optional kit. Refer to the relative instruction

sheet for positioning of the external probe.

e probe can be connected directly to the boiler

electrical system and allows the max. system

ow temperature to be automatically decreased

when the external temperature increases, in

order to adjust the heat supplied to the system

according to the change in outdoor temperature.

e external probe always acts when connected

independently from the presence or type of room

thermostat used. e correlation between system

flow temperature and outdoor temperature

is determined by the position of the selector

switch on the boiler control panel according to

the curves shown in the diagram (Fig. 1-6). e

electric connection of the external probe must be

made on clamps 38 and 39 on the boiler P.C.B.

(Fig. 3-2).

Position of the central heating temperature

user adjustment

1-7

1-8

1-9

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.7 IMMERGAS FLUE SYSTEMS.

Immergas supplies various solutions separately

from the boilers regarding the installation of air

intake terminals and ue extraction, which are

fundamental for boiler operation.

Attention: the boiler must only be installed

together with an original Immergas air intake

and ue gas exhaust system, in compliance

with the standards in force. is system can be

identied by an identication mark and special

distinctive marking bearing the note " not for

condensing boilers".

e ue exhaust pipes must not be in contact with

or be near to ammable materials. Moreover,

they must not pass through buildings or walls

made of ammable material.

See following paragraphs for the detailed

description of the kits available.

Positioning of double lip seals. For correct

positioning of lip seals on elbows and extensions,

follow the direction of assembly given in gure

(Fig. 1-7).

• Resistance factors and equivalent lengths.

Each ue component has a Resistance Factor

based on experimental tests and specified

in the table below. e Resistance Factor for

individual components is independent from

the type of boiler on which it is installed

and has a dimensionless size. It is however,

conditioned by the temperature of the uids

that pass through the pipe and therefore,

varies according to applications for air intake

or ue exhaust. Each single component has a

resistance corresponding to a certain length

in metres of pipe of the same diameter; the

so-called equivalent length, obtained from

the ration between the relative Resistance

Factors. All boilers have an experimentally

obtainable maximum Resistance Factor equal to

100. e maximum Resistance Factor allowed

corresponds to the resistance encountered with

the maximum allowed pipe length for each

type of Terminal Kit. is information allows

calculations to be made to verify the possibility

of setting up various ue congurations.

• Coupling of extension pipes. To install any

push-t extensions with other ue extraction

elements, it is necessary to do the following:

install the concentric pipe or elbow with the

male side (smooth) on the female section

(with lip seal) to the end stop on the previously

installed element. is will ensure the sealing

and joining of the elements correctly.

Attention: if the exhaust terminal and/or

extension concentric pipe needs shortening,

consider that the internal duct must always

protrude by 5 mm with respect to the external

duct.

Diaphragm installation.

Attention: based on the boiler model (checking

which type of fan is installed), use appropriate

diaphragms.

For correct functioning of the boiler it is

necessary to install a diaphragm on the outlet

of the sealed chamber and before the intake

and exhaust pipe. e appropriate diaphragm is

chosen based on type of pipe and its maximum

extension: this calculation can be made using

the tables below:

N.B.: the diaphragms are supplied together with

the boiler.

Key:

1 - Concentric

ue extraction

diaphragm

2 - Divided ue

extraction

diaphragm

Diaphragm

(ref. 1 g. 1-8)

Pipe extension in metres Ø

60/100 horizontal

Ø 85 From 0 to 0.5

Ø 83 From 0.5 to 1.5

WITHOUT Exceeding 1.5

Diaphragm

(ref. 1 g. 1-8)

Pipe extension in metres Ø

60/100 vertical

Ø 85 From 0 to 2.2

Ø 83 From 2.2 to 3.7

WITHOUT Exceeding 3.7

Diaphragm

(ref. 1 g. 1-8)

Pipe extension in metres Ø

80/125 horizontal

Ø 85 From 0 to 0.5

Ø 83 From 0.5 to 4.6

WITHOUT Exceeding 4.6

Diaphragm

(ref. 1 g. 1-8)

Pipe extension in metres Ø

80/125 vertical

Ø 85 From 0 to 5.4

Ø 83 From 5.4 to 9.5

WITHOUT Exceeding 9.5

Diaphragm

(ref. 2 g. 1-8)

Pipe extension in metres Ø

80 divided

intake exhaust

Ø 20.5

From 0.5 to 15

Ø 15

From 15 to 35

Diaphragm

(ref. 2 g. 1-8)

Pipe extension in metres Ø

80 divided

intake exhaust

Ø 20.5 1 From 0.5 to 8

Ø 15 1 From 8 to 16

WITHOUT 1 Exceeding 16

Diaphragm

(g. 1-9)

Pipe extension in metres Ø

60/100 horizontal

Ø 40 From 0 to 0.5

Ø 41.5 From 0.5 to 1.5

WITHOUT Over 1.5

Diaphragm

(g. 1-9)

Pipe extension in metres Ø

60/100 vertical

Ø 40 From 0 to 2.2

Ø 41.5 From 2.2 to 3.2

WITHOUT Over 3.2

Diaphragm

(g. 1-9)

*Extension in metres

horizontal pipe Ø 80 with

two bends

Ø 40 From 0 to 17

Ø 41.5 From 17 to 24

WITHOUT Over 24

Diaphragm

(g. 1-9)

*Extension in metres

vertical pipe Ø 80

without bends

Ø 40 From 0 to 22

Ø 41.5 From 22 to 29

WITHOUT Over 29

Diaphragm

(g. 1-9)

Pipe extension in metres Ø

80/125 horizontal

Ø 40 From 0 to 0.5

Ø 41.5 From 0.5 to 3.3

WITHOUT Over 3.3

Diaphragm

(g. 1-9)

Pipe extension in metres Ø

80/125 vertical

Ø 40 From 0 to 5.4

Ø 41.5 From 5.4 to 8.1

WITHOUT Over 8.1

DIAPHRAGM

* e values for maximum length are considered

with 1 metre of exhaust pipe and the remaining

on intake.

FAN POWER:

33W / 39W (Fig. 1-9).

FAN POWER: 30W (Fig. 1-8).

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.8 TABLES OF RESISTANCE FACTORS AND EQUIVALENT LENGTHS.

TYPE OF DUCT

Resistance

Factor

(R)

Equivalent length

in m of concentric pipe

Ø 60/100

Equivalent length

in m of concentric pipe

Ø 80/125

Equivalent length

in m of pipe

Ø 80

Concentric pipe Ø 60/100 m 1 Intake and

Exhaust 16.5 m 1 m 2.8 Intake m 7.1

Exhaust m 5.5

Concentric bend 90° Ø 60/100 Intake and

Exhaust 21 m 1.3 m 3.5 Intake m 9..1

Exhaust m 7.0

Concentric bend 45° Ø 60/100 Intake and

Exhaust 16.5 m 1 m 2.8 Intake m 7.1

Exhaust m 5.5

Terminal complete with intake-exhaust

horizontal concentric Ø 60/100 Intake and

Exhaust 46 m 2.8 m 7.6

Intake m 20

Exhaust m 15

Intake-exhaust terminal

horizontal concentric Ø 60/100 Intake and

Exhaust 32 m 1.9 m 5.3 Intake m 14

Exhaust m 10.6

Intake-exhaust terminal

vertical concentric Ø 60/100 Intake and

Exhaust 41.7 m 2.5 m 7

Intake m 18

Exhaust 14

Concentric pipe Ø 80/125 m 1 Intake and

Exhaust 6 m 0.4 m 1.0 Intake m 2.6

Exhaust m 2.0

Concentric bend 90° Ø 80/125 Intake and

Exhaust 7.5 m 0.5 m 1.3 Intake m 3.3

Exhaust m 2.5

Concentric bend 45° Ø 80/125 Intake and

Exhaust 6 m 0.4 m 1.0 Intake m 2.6

Exhaust m 2.0

Terminal complete with intake-exhaust

vertical concentric Ø 80/125 Intake and

Exhaust 33 m 2.0 m 5.5

Intake m 14.3

Exhaust m 11.0

Intake-exhaust terminal

vertical concentric Ø 80/125 Intake and

Exhaust 26.5 m 1.6 m 4.4

Intake m 11.5

Exhaust m 8.8

Terminal complete with intake-exhaust

horizontal concentric Ø 80/125 Intake and

Exhaust 39 m 2.3 m 6.5

Intake m 16.9

Exhaust m 13

Intake-exhaust terminal

horizontal concentric Ø 80/125 Intake and

Exhaust 34 m 2.0 m 5.6

Intake m 14.8

Exhaust m 11.3

Concentric adapter from Ø 60/100

to Ø 80/125 with condensate trap Intake and

Exhaust 13 m 0.8 m 2.2 Intake m 5.6

Exhaust m 4.3

Concentric adapter from

Ø 60/100 to Ø 80/125 Intake and

Exhaust 2 m 0.1 m 0.3 Intake m 0.8

Exhaust m 0.6

Pipe Ø 80 m 1 (with and without insulation)

Intake 2.3 m 0.1 m 0.4 Intake m 1.0

Exhaust 3 m 0.2 m 0.5 Exhaust m 1.0

Complete intake terminal Ø 80, 1 m

(with or without insulation) Intake 5 m 0.3 m 0.8 Intake m 2.2

Intake terminal Ø 80

Exhaust terminal Ø 80 Intake 3 m 0.2 m 0.5 Intake m 1.3

Exhaust 2.5 m 0.1 m 0.4 Exhaust m 0.8

Bend 90° Ø 80 Intake 5 m 0.3 m 0.8 Intake m 2.2

Exhaust 6.5 m 0.4 m 1.1 Exhaust m 2.1

Bend 45° Ø 80 Intake 3 m 0.2 m 0.5 Intake m 1.3

Exhaust 4 m 0.2 m 0.6 Exhaust m 1.3

Divided parallel Ø 80

from Ø 60/100 to Ø 80/80 Intake and

Exhaust 8.8 m 0.5 m 1.5 Intake m 3.8

Exhaust m 2.9

1-121-11

1-10

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.9 OUTDOOR INSTALLATION IN

PARTIALLY PROTECTED AREA.

N.B.: a partially protected location is one in which

the appliance is not exposed to the direct action of

the weather (rain, snow, hail, etc..).

• Conguration type B, open chamber and

forced draught.

The relevant terminal must be used for this

conguration (present in the intake kit for the

installation in question), which must be placed

on the central hole of the boiler (Fig. 1-12). Air

intake takes place directly from the room where

the boiler is installed and ue exhaust in an in-

dividual ue or directly to the outside.

Boiler with this type of conguration are classi-

ed as type B22.

With this conguration:

- air intake takes place directly from the envi-

ronment in which the appliance is installed

(external);

- the ue exhaust must be connected to its own

individual ue or channelled directly into the

external atmosphere.

Accordingly, technical standards in force must

be observed.

Max. length of exhaust duct. The flue pipe

(vertical or horizontal) can be extended to a max.

length of 12 linear metres, using insulated pipes

(Fig. 1-28) and limit the length of the Ø 80 normal

ue pipe (not insulated) to just 5 metres.

Example of installation with direct vertical

terminal in partially protected location. When

the vertical terminal for direct discharge of com-

bustion fumes is used, a minimum gap of 300 mm

must be le between the terminal and the balcony

above. e height X+Y+Z+W evaluated with

respect to the balcony above, must be equal to

or more than 2000 mm. (Fig. 1-11). e term W

must only be considered if the balcony above has

closed balustrade (W=0 if the balustrade is open).

• Conguration without cover kit

(boiler type C).

By leaving the side plugs tted, it is possible to

install the appliance externally, in partially co-

vered places, without the cover kit. Installation

takes place using the Ø60/100 and Ø80/125

concentric horizontal intake/ exhaust kits. Refer

to the paragraph relative to indoor installation. In

this conguration the upper cover kit guarantees

additional protection for the boiler. It is recom-

mended but not compulsory.

• Fitting the cover kit. To assemble and con-

gure the cover kit correctly, please refer to the

relative instructions sheet.

VERTICAL TERMINAL KIT FOR

DIRECT DRAINING

INTAKE COVER KIT

C12

1-13

C12

C12 C12

C12

1-14

1-16

1-17

1-15

INSTALLERUSER

MAINTENANCE TECHNICIAN

 e kit includes:

N°1 - Gasket (1)

N°1 - Concentric bend 90° (2)

N°1 - Intake/Exhaust concentric pipe

Ø60/100 (3)

N°1 - Internal wall sealing plate (4)

N°1 - External wall sealing plate (5)

1.10 CONCENTRIC HORIZONTAL KIT

INSTALLATION.

Type C configuration, sealed chamber and

fan assisted.

Installation of this terminal is governed by

standards contained in local building regulations,

as amended.

N.B.: in addition to the traditional “Ø60/100

horizontal kit” there is also a specic “Ø60/100

Star” version, with the same measurements and

equivalent head loss.

is terminal is connected directly to the outside

of the building for air intake and ue exhaust. e

horizontal kit Ø 60/100 can be installed with the

rear, right side, le side or front outlet.

• External grid. N.B.: for safety purposes, do not

obstruct the boiler intake-exhaust terminal,

even temporarily.

Horizontal intake - exhaust kit Ø60/100.

Kit assembly (Fig. 1-13): install the bend with

ange (2) onto the central hole of the boiler

inserting the gasket (1) and tighten using the

screws included in the kit. Couple the terminal

pipe (3) with the male end (smooth) into the

female end of the bend (with lip seals) up to the

stop; making sure that the internal wall sealing

plate and external wall sealing plate have been

tted, this will ensure sealing and joining of the

elements making up the kit.

• Application with rear outlet (Fig. 1-14). e

970 mm pipe length enables routing through

a maximum thickness of 770 mm. Normally

the terminal must be shortened. Calculate

the measurement by the sum of these values:

Wall thickness + indoor extension + outdoor

extension. The minimum indispensable

projection values are given in the gure.

• Application with side outlet (Fig. 1-15). Using

the horizontal intake-exhaust kit, without the

special extensions, enables routing through

a wall thickness of 725 mm with the le side

outlet and 645 with the right side outlet.

• Extensions for horizontal kit. e Ø 60/100

horizontal intake-exhaust kit can be extended

up to a max. horizontal length of 3000 mm,

including the terminal with grille and excluding

the concentric bend leaving the boiler. is

conguration corresponds to a resistance factor

of 100. In these cases the special extensions

must be requested.

Connection with 1 extension (Fig. 1-16).

Max. distance between vertical boiler axis and

external wall is 1855mm.

Connection with 2 extensions (Fig. 1-17).

Max. distance between vertical boiler axis and

external wall is 2805mm.

Horizontal intake - exhaust kit Ø80/125. Kit

assembly (Fig. 1-18): install the bend with ange

(2) onto the central hole of the boiler inserting

the gasket (1) and tighten using the screws

included in the kit. Fit the male end (smooth) of

the adapter (3) up to the end stop on the female

side of the bend (2) (with lip seal). Fit the Ø

80/125 (4) concentric terminal pipe with the male

end (smooth) to the female end of the adapter (3)

(with lip gasket) up to the stop; making sure that

the internal and external wall sealing plates have

been tted; this will ensure sealing and joining

of the elements making up the kit.

Normally the horizontal intake/exhaust kit Ø

80/125 is used if particularly long extensions

are required.

• Extensions for horizontal kit. e Ø 80/125

horizontal intake-exhaust kit can be extended

up to a max. horizontal distance of 7,300 mm

including the terminal with grid and excluding

the concentric bend leaving the boiler and the

adapter Ø 60/100 in Ø 80/125 (Fig. 1-19). is

conguration corresponds to a resistance factor

of 100. In these cases the special extensions

must be requested.

N.B.: when installing the pipes, a section clamp

with pin must be installed every 3 metres.

C12

1-18

C12

1-19

C32

1-211-20

C32

INSTALLERUSER

MAINTENANCE TECHNICIAN

 e kit includes:

N°1 - Gasket (1)

N°1 - Concentric bend Ø 60/100 (2)

N°1 - Adapter Ø 60/100 for

Ø 80/125 (3)

N°1 - Concentric terminal

int./exh. Ø 80/125 (4)

N°1 - Internal wall sealing plate (5)

N°1 - External wall sealing plate (6)

 e kit includes:

N°1 - Gasket (1)

N°1 - Female ange

concentric (2)

N°1 - Adapter Ø 60/100)

for Ø 80/125 (3)

N°1 - Wall sealing plate (4)

N°1 - Aluminium tile (5)

N°1 - Concentric pipe

int./exh. Ø 80/125 (6)

N°1 - Fixed half-shell

N°1 - Mobile half-shell

1.11 CONCENTRIC VERTICAL KIT

INSTALLATION.

Type C configuration, sealed chamber and

fan assisted.

Concentric vertical intake and exhaust kit. is

vertical terminal is connected directly to the

outside of the building for air intake and ue

exhaust.

N.B.: the vertical kit with aluminium tile

enables installation on terraces and roofs with

a maximum slope of 45% (approx 25°) and the

height between the terminal cap and half-shell

(374 mm) must always be observed.

Vertical kit with aluminium tile Ø 80/125. Kit

assembly (Fig. 1-20): install the concentric ange

(2) on the central hole of the boiler inserting the

gasket (1) and tighten using the screws in the

kit. Fit the male end (smooth) of the adapter (3)

into the female end of the concentric ange (2).

Imitation aluminium tile installation. Replace the

tile with the aluminium sheet (5), shaping it to

ensure that rainwater runs o. Position the xed

half-shell (7) and insert the intake-exhaust pipe

(6). Fit the Ø 80/125 concentric terminal pipe

with the male end (6) (smooth) to the female end

of the adapter (3) (with lip gasket) up to the stop;

making sure that the wall sealing plate (4) has

been tted, this will ensure sealing and joining

of the elements making up the kit.

e vertical kit with this conguration can be

extended to a max. straight vertical length of

12200 mm including the terminal (Fig. 1-21).

is conguration corresponds to a resistance

factor of 100. In this case the special extensions

must be requested.

The terminal Ø 60/100 can also be used for

vertical exhaust, in conjunction with concentric

ange code 3.011141 (sold separately).

e vertical kit with this conguration can be

extended to a max. straight vertical length of 4700

mm including the terminal (Fig. 1-21).

MAXIMUM LENGTH 4700 mm

MAXIMUM LENGTH 12200 mm

C82

1-22

C42

C52

1-23

1-25

C82

1-24

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.12 SEPARATOR KIT INSTALLATION.

Type C configuration, sealed chamber and

fan assisted.

This kit allows air to come in from outside

the building and the exhaust to exit from the

chimney or ue through divided ue exhaust

and air intake pipes. Combustion products are

expelled from pipe (S). e required amount of

air is taken in through pipe (A) for combustion.

e intake pipe (A) can be installed either on the

right or le hand side of the central exhaust pipe

(S). Both ducts can be routed in any direction.

• Separator kit Ø 80/80. Kit assembly (Fig. 1-22):

install the ange (4) on the central hole of the

boiler, interposing the gasket (1) and tighten

with the at-tipped hex screws included in the

kit. Remove the at ange present in the lateral

hole with respect to the central one (according

to needs) and replace it with the ange (3),

positioning the gasket (2) already present in

the boiler and tighten using the supplied self-

threading screws. Fit the male end (smooth) to

the bends (5) in the female end of the anges

(3 and 4). Fit the intake terminal (6) with the

male section (smooth) in the female section of

the bend (5) up to the stop, ensuring that the

internal and external wall sealing plates are

tted. Fit the exhaust pipe (9) with the male end

(smooth) to the female end of the bend (5) up

to the stop; making sure that the internal wall

sealing plate has been tted, this will ensure

sealing and joining of the elements making up

the kit.

• Installation clearances. Figure 1-23 gives the

min. installation space dimensions of the

Ø 80/80 separator terminal kit in limited

conditions.

• Figure 1-24 shows the configuration with

vertical exhaust and horizontal intake.

• Extensions for separator kit Ø 80/80. e max.

vertical linear length (without bends) usable

for Ø 80 intake and exhaust pipes is 41 metres

of which 40 intake and 1 exhaust. is total

 e kit includes:

N°1 - Exhaust gasket (1)

N°1 - Female intake ange (3)

N°1 - Flange gasket (2)

N°1 - Female exhaust ange (4)

N°2 - 90° bend Ø 80 (5)

N°1 - Intake terminal Ø 80 (6)

N°2 - Internal wall sealing plates (7)

N°1 - External wall sealing plate (8)

N°1 - Exhaust pipe Ø 80 (9)

Maximum usable lengths

(including intake terminal with grill and two 90° bends)

NON-INSULATED PIPE INSULATED PIPE

Drain (metres) Intake (metres) Drain (metres) Intake (metres)

1 36.0* 6 29.5*

2 34.5* 7 28.0*

3 33.0* 8 26.5*

4 32.0* 9 25.5*

5 30.5* 10 24.0*

* e air intake pipe can be increased to 2.5 metres if the exhaust bend

is eliminated, 2 metres if the air intake bend is eliminated, 4.5 metres

eliminating both bends.

11 22.5*

12 21.5*

Attention: the boiler is designed to evacuate

the combustion products up to a maximum

extension of 27 linear metres from the exhaust,

with 1 m plus 90° bend at the intake. If the

installation requests a development of the ue

to the discharge that exceeds the recommended

12 m, due consideration must be given to the

formation of condensate that could take place

inside the pipe and Immergas insulated “Blue

Series” ue kits must be used.

C82

1-27

1-28

C82

1-26

5678

10 11 9

C82

INSTALLERUSER

MAINTENANCE TECHNICIAN

length corresponds to a resistance factor of

100. e total usable length obtained by the

sum of the Ø 80 intake and exhaust pipe lengths

can reach, as a maximum, the values provided

in the following table. If mixed accessories or

components are used, the maximum extension

can be calculated by using a resistance factor

for each component or its equivalent length.

e sum of these resistance factors must not

exceed 100.

• Temperature loss in flue ducts. To prevent

problems of ue gas condensate in the exhaust

pipe Ø 80, due to fume cooling through the

wall, the length of the pipe must be limited to

just 5 m. Fig. 1-25). If longer distances must be

covered, use Ø 80 pipes with insulation (see

insulated separator kit Ø 80/80 chapter).

N.B.: when installing the Ø 80 ducts, a dividing

strip with gusset must be installed every 3 metres.

• Insulated separator kit Ø 80/80. Kit assembly

(Fig. 1-26): install the ange (4) on the central

hole of the boiler, interposing the gasket (1)

and tighten with the at-tipped hex screws

included in the kit. Remove the flat flange

present in the lateral hole with respect to the

central one (according to needs) and replace it

with the ange (3), positioning the gasket (2)

already present in the boiler and tighten using

the supplied self-threading screws. Insert and

slide cap (6) onto bend (5) from the male side

(smooth), and join bends (5) with the male

side (smooth) in the female side of ange (3).

Fit bend (11) with the male side (smooth) into

the female side of ange (4). Fit the male end

(smooth) of the intake terminal (7) up to the

stop on the female end of the bend (5), making

sure you have already inserted the wall sealing

plates (8 and 9) that ensure correct installation

between pipe and wall, then x the closing cap

(6) on the terminal (7). Join the exhaust pipe

(10) with the male side (smooth) in the female

side of the bend (11) to the end stop, ensuring

that the wall sealing plate (8) is already inserted

for correct installation between the pipe and

ue.

• Insulation of separator terminal kit. Whenever

there are ue gas condensate problems in the

exhaust pipes or on the external surface of the

intake pipes, on request Immergas supplies

insulated intake-exhaust pipes. Insulation

my be necessary on the exhaust pipe, due to

excessive loss of temperature of the ue gas on

their route. Insulation may be necessary on

the intake pipe as the air entering (if very cold)

may cause the outside of the pipe to fall below

the dew point of the environmental air. e

gures (Fig. 1-27 and 1-28) illustrate dierent

applications of insulated pipes.

Insulated pipes are formed of a Ø 80 internal

concentric pipe and a Ø 125 external pipe with

static air space. It is not technically possible

to start with both Ø 80 elbows insulated, as

clearances will not allow it. However starting

with an insulated elbow is possible by choosing

either the intake or exhaust pipe. When starting

with the insulated intake bend it must be

engaged on its ange until it is taken up to stop

on the ue gas exhaust ange, a situation that

takes the two intake ue gas exhaust outlets to

the same height.

• Temperature loss in insulated ue ducting.

To prevent problems of ue gas condensate in

the exhaust pipe Ø 80, due to ue gas cooling

through the wall, the length of the pipe must be

limited to 12 m. e gure (Fig. 1-28) illustrates

a typical insulation application in which the

intake pipe is short and the exhaust pipe is

very long (over 5 m). e entire intake pipe is

insulated to prevent moist air in the place where

the boiler is installed, in contact with the pipe

cooled by air entering from the outside. e

entire exhaust pipe, except the elbow leaving

the splitter is insulated to reduce heat loss from

the pipe, thus preventing the formation of fume

condensate.

N.B.: when installing the insulated pipes, a

section clamp with pin must be installed every

2 metres.

 e kit includes:

N°1 - Exhaust gasket (1)

N°1 - Flange gasket (2)

N°1 - Female intake ange (3)

N°1 - Female exhaust ange (4)

N°1 - Bend 90° Ø 80 (5)

N°1 - Pipe closure cap (6)

N°1 - Intake terminal Ø 80 insulated (7)

N°2 - Internal wall sealing plates (8)

N°1 - External wall sealing plate (9)

N°1 - Discharge pipe Ø 80 insulated (10)

N°1 - Concentric bend 90° Ø 80/125 (11)

INSTALLERUSER

MAINTENANCE TECHNICIAN

1.13 CONFIGURATION TYPE B,

OPEN CHAMBER AND FORCED

DRAUGHT FOR INDOORS.

e appliance can be installed inside buildings

in B mode; in this case, all technical rules, and

national and local regulations in force, must be

complied with.

- Type B open chamber boilers must not be

installed in places where commercial, artisan

or industrial activities take place, which use

products that may develop volatile vapours

or substances (e.g. acid vapours, glues, paints,

solvents, combustibles, etc.), as well as dusts

(e.g. dust deriving from the working of

wood, coal nes, cement, etc.), which may be

damaging for the components of the appliance

and jeopardise functioning.

- In conguration type B, the boilers must not be

installed in bedrooms, bathrooms or in bedsits.

- e installation of appliances in conguration

B is only recommended outdoors (in a partially

protected place) or in places that are not lived

in and which are permanently ventilated.

1.14 FLUE EXHAUST TO FLUE/CHIMNEY.

Flue exhaust does not necessarily have to be

connected to a branched type traditional ue.

e ue exhaust can be connected to a special

LAS type multiple ue. Multiple and combined

ues must be specially designed according to

the calculation method and requirements of the

standards, by professionally qualied technical

sta. Chimney or ue sections for connection

of the exhaust pipe must comply with requisites

of technical standards in force.

1.15 DUCTING OF FLUES OR

TECHNICAL SLOTS.

Ducting is an operation through which by the

introduction of one or more relevant pipes,

a system is realised for the evacuation of the

combustion products of a gas appliance made up

from the coupling of an existing or new ducting

pipe with a chimney, ue or technical slot (also

in new buildings). Ducting requires the use of

ducts declared to be suitable for the purpose by

the manufacturer. Follow the installation and

user instructions provided by the manufacturer

and the requirements set forth by standards.

1.16 FLUES, CHIMNEYS AND CHIMNEY

CAPS.

The flues, chimneys and chimney caps for

the evacuation of combustion products must

be in compliance with applicable standards.

Chimneys and roof-installed exhaust terminals

must comply with the outlet height and with the

distance from technical volumes set forth by the

technical standards in force.

Positioning the wall exhaust terminals. e

exhaust terminals must:

- be installed on external perimeter walls of the

building;

- be positioned according to the minimum

distances specified in current technical

standards.

Combustion products exhaust of natural or

fan assisted appliances in open-top closed

environments. In spaces closed on all sides

with open tops (ventilation pits, courtyards etc.),

direct ue gas exhaust is allowed for natural or

forced draught gas appliances with a heating

power range from 4 to 35 kW, provided the

conditions as per the current technical standards

are respected.

1.17 SYSTEM FILLING.

Once the boiler is connected, proceed with

system lling via the lling valve (Fig. 2-2).

Filling is performed at low speed to ensure release

of air bubbles in the water via the boiler and

heating system vents.

e boiler has a built-in automatic venting valve

on the circulator. Check if the cap is loose.

Open the radiator vent valves. Close radiator

vent valves when only water escapes from them.

Close the lling valve when the boiler manometer

indicates approx. 1.2 bar.

N.B.: during these operations turn on the

circulation pump at intervals, by means of the

stand-by/summer winter button (2) positioned

on the control panel. Vent the circulation pump

by loosening the front cap and keeping the motor

running.

Tighten the cap aer the operation.

1.18 GAS SYSTEM STARTUP.

To start up the system, refer to the standard

in force.

In particular, for new gas systems:

- open windows and doors;

- avoid presence of sparks or naked ames;

- bleed all air from pipelines;

- check that the internal system is properly sealed

according to specications.

1.19 BOILER START UP IGNITION.

For issue of the Declaration of Conformity

provided for by Italian Law, the following must

be performed for boiler start-up:

- check that the internal system is properly sealed

according to specications;

- ensure that the type of gas used corresponds to

boiler settings;

- switch the boiler on and ensure correct ignition;

- make sure that the gas ow rate and relevant

pressure values comply with those given in the

manual (Par. 3.18 / 3.21);

- ensure that the safety device is engaged in the

event of gas supply failure and check activation

time;

- check activation of the main switch located

upstream from the boiler;

- check that the concentric intake-exhaust

terminal (if tted) is not blocked.

e boiler must not be started up even if only

one of the checks should be negative.

N.B.: the preliminary boiler check must be carried

out by a qualied technician. e standard boiler

warranty is valid from the date of inspection.

 e test certicate and warranty is issued to the

user.

INSTALLERUSER

MAINTENANCE TECHNICIAN

Head (m H2O)

Flow rate (l/h)

Head (kPa)

Head available to the system.

A = Head available to the system at

maximum speed with by-pass

excluded.

B = Head available to the system at

maximum speed with by-pass

inserted.

C = Head available to the system

at second speed with by-pass

excluded.

D = Head available to the system

at second speed with by-pass

inserted.

1.20 CIRCULATION PUMP.

The boilers are supplied with a built-in

circulation pump with 3-position electric speed

control. e boiler does not operate correctly

with the circulation pump on rst speed. To

ensure optimal boiler operation, in the case

of new systems (single pipe and module) it is

recommended to use the pump at maximum

speed. e circulation pump is already tted

with a capacitor.

Pump release. If, aer a prolonged period of

inactivity, the circulation pump is blocked,

unscrew the front cap and turn the motor sha

using a screwdriver. Take great care during this

operation to avoid damage to the motor.

By-pass Regulation (part. 25 Fig. 1-30). If

necessary, the by-pass can be regulated according

to system requirements from a minimum (by-

pass excluded) to a maximum (by-pass inserted)

represented by the graphics (Fig. 1-29). Make the

regulation using a at head screwdriver, turn

clockwise and insert the by-pass, anti-clockwise

it is excluded.

1.21 KITS AVAILABLE ON REQUEST.

• System cut-o valves kit. e boiler is designed

for installation of system interception cocks

to be placed on ow and return pipes of the

connection assembly. is kit is particularly

useful for maintenance as it allows the boiler to

be drained separately without having to empty

the entire system.

• Polyphosphate dispenser kit. e polyphosphate

dispenser reduces the formation of lime-scale

and preserves the original heat exchange and

domestic hot water production conditions.

e boiler is prepared for application of the

polyphosphate dispenser kit.

• Covering kit. If installed outdoors in a

partially sheltered place with direct air intake,

it is compulsory to mount the appropriate top

protection cover for the correct functioning of

the boiler and to protect it from adverse weather

conditions (Fig. 1-10); or, if installed indoors in

conguration type B, it is compulsory to mount

the appropriate top protection cover along with

the ue exhaust kit.

• Anti freeze kit with resistance (on request).

If the boiler is installed in a place where the

temperature drops below -5°C and if the gas

supply fails, the appliance may freeze. To

prevent freezing of the domestic hot water

system, an anti freeze kit with an electrical

resistance can be tted from the relative cable

and from a control thermostat.

e above-mentioned kits are supplied complete

with instructions for assembly and use.

1- 30

INSTALLERUSER

MAINTENANCE TECHNICIAN

Key:

1 - Sample points (air A) - (ue gases F)

2 - Sealed chamber

3 - Fan

4 - Combustion chamber

5 - Domestic hot water ow switch

6 - Gas valve

7 - Domestic hot water probe

8 - System lling valve

9 - Positive signal pressure point

10 - Negative signal pressure point

11 - Flue pressure switch

12 - Flow probe

13 - Flue hood

14 - Safety thermostat

15 - Primary heat exchanger

16 - Ignition and detection electrodes

17 - System expansion vessel

18 - Burner

19 - System pressure switch

1.22 BOILER COMPONENTS.

20 - Air vent valve

21 - Boiler pump

22 - Plate heat exchanger

23 - 3-way valve (motorised)

24 - System draining valve

25 - By-pass

26 - 3 bar safety valve

N.B.: connection group (Optional)

2-1

INSTALLERUSER

MAINTENANCE TECHNICIAN

2 INSTRUCTIONS FOR USE

AND MAINTENANCE

2.1 CLEANING AND MAINTENANCE.

Attention: the heating systems must undergo

periodical maintenance (regarding this, see

the section dedicated to the technician, relative

to “yearly control and maintenance of the

appliance”) and regular checks of energy

eciency in compliance with national, regional

or local provisions in force. is ensures that

the optimal safety, performance and operation

characteristics of the boiler remain unchanged

over time.

2.2 GENERAL WARNINGS

Never expose the wall-mounted boiler to direct

vapours from a cooking surface.

Use of the boiler by unskilled persons or children

is strictly prohibited.

Do not touch the ue gas exhaust terminal (if

present) due to the high temperatures it can

reach.

For safety purposes, check that the concentric

air intake/flue exhaust terminal (if fitted), is

not blocked.

If temporary shutdown of the boiler is required,

proceed as follows:

a) drain the heating system if anti-freeze is not

used;

b) shut-o all electrical, water and gas supplies.

In the case of work or maintenance to structures

located in the vicinity of ducting or devices

for flue extraction and relative accessories,

switch o the appliance and on completion of

operations ensure that a qualied technician

checks eciency of the ducting or other devices.

Never clean the appliance or connected parts

with easily ammable substances.

Never leave containers or ammable substances

in the same environment as the appliance.

• Attention: the use of components involving use

of electrical power requires some fundamental

rules to be observed:

- do not touch the appliance with wet or moist

parts of the body; do not touch when barefoot;

- never pull electrical cables or leave the

appliance exposed to atmospheric agents (rain,

sunlight, etc.);

- the appliance power cable must not be replaced

by the user;

- in the event of damage to the cable, switch o

the appliance and contact exclusively qualied

sta for replacement;

- if the appliance is not to be used for a certain

period, disconnect the main power switch.

2.3 CONTROL PANEL.

Key:

1 - Reset Button

2 - Stand-by / O / Summer / Winter

button

3 - Key used to increase the

DHW temperature setting.

4 - Key used to decrease the

DHW temperature setting.

5 -- Key ( ) to increase the system water

temperature

6 - Key ( ) to reduce the system water

temperature

7 - Boiler manometer

8 - DHW production phase functioning*

active

9 - Boiler connected to remote control

(optional)

10 - Flame presence symbol and relative

output scale

11 - Operation with external temperature

probe active (optional)

12 - Room central heating active phase

functioning

13 - Operation in winter mode

14 - Operation in summer mode

15 - Boiler in Stand-by mode

16 - Temperature and error code display

17 - Boiler in block does not require release

via “Reset” button

INSTALLERUSER

MAINTENANCE TECHNICIAN

2.4 USING THE BOILER.

Before ignition make sure the heating system

is lled with water and that the manometer (7)

indicates a pressure of 1 ÷ 1.2 bar.

- Open the gas cock upstream from the boiler.

- Press the button (2) until the display switches

on, aer which press the button in sequence

(2) and take the boiler to the summer ( )

or winter ( ) position.

• Summer ( ): in this mode the boiler

functions only to produce the DHW, the

temperature is set via the buttons (3-4) and the

relative temperature is shown on the display via

the indicator (16).

• Winter ( ): in this mode the boiler functions

both for producing domestic hot water and

heating the environment. e temperature of

the DHW is always regulated via buttons (3-4),

the heating temperature is regulated via buttons

(5-6) and the relative temperature is shown on

the display via the indicator (16).

From this moment the boiler functions

automatically. With no demand for heat (heating

or domestic hot water production) the boiler

goes to “standby” function, equivalent to the

boiler being powered without presence of ame.

Each time the burner ignites, the relative ame

present symbol is displayed (10) with relative

output scale.

• Operation with Comando Amico RemotoV2

(CARV2) (Optional). If the CARV2 is connected,

the ( ) symbol will appear on the display.

e boiler regulation parameters can be set

via the CARV2 control panel and the reset

button (1) remains active on the boiler control

panel, along with the switch-o button (2)

(“o” mode only) and the display where the

functioning state is shown.

Attention: if the boiler is put into "o" mode,

the “ERR>CM” connection error symbol

will appear on the CARCARV2. e CARV2 is

however powered constantly so as not to loose

memorised programs.

• Operation with optional external probe

( ). In the case of a system with optional

external probe, the boiler ow temperature

for room central heating is managed by the

external probe depending on the external

temperature measured (Par. 1.6). The flow

temperature can be modified by selecting

the functioning curve via buttons (5 and 6),

selecting a value from "0 to 9" (Fig. 1-6).

With external probe present, the relative

symbol (12) will appear on the display. In the

central heating phase, if the temperature of the

water contained in the system is sucient to

heat the radiators, the boiler can only function

with the activation of the pump.

• “Stand-by” mode. Press button (2) in

succession until the ( ) symbol appears.

e boiler remains active from this moment

and the anti-freeze function, pump anti-block

function and 3-way and signalling of any

anomalies is guaranteed.

N.B.: in these conditions the boiler is

considered still powered.

• “O” mode. By holding the button (2) down

for 8 seconds, the display switches-o and the

boiler is o completely. e safety functions are

not guaranteed in this mode.

N.B.: in these conditions the boiler is considered

still live even if there are no functions active.

• Display functioning. e display lights up

during the use of the control panel, aer 15

seconds inactivity, the brightness drops until

just the active symbols are displayed. The

lighting mode can be varied via parameter P2

in the circuit board customisation menu.

2.5 FAULT AND ANOMALY SIGNALS.

e boiler signals out anomalies by ashing on

the display and relative error codes, listed on the

table, are displayed.

Anomaly signalled

code

displayed

(ashing)

No ignition block 01

Safety thermostat block

(overheating), ame control

anomaly

Fan anomaly 03

Generic boiler P.C.B. anomaly 04

Flow probe anomaly 05

Domestic hot water probe

anomaly 06

Maximum N° of reset 08

Insucient system pressure 10

Flue pressure switch failure 11

Conguration error 15

Parasite ame 20

Push button control panel

anomaly 24

Insucient circulation 27

Loss of remote control

communication. 31

Low power supply voltage 37

Loss of ame signal 38

Block due to loss of

continuous ame signal 43

Attention: the Anomaly can be reset 5 times

consecutively, after which the function in

inhibited for at least one hour. One attempt is

gained every hour for a maximum of 5 attempts.

By switching the appliance on and off the 5

attempts are re-acquired.

Ignition block. e boiler ignites automatically

with each demand for room heating or hot

water production. If this does not occur within

10 seconds, the boiler goes into ignition block

(code 01). To eliminate “ignition block” the Reset

button (1) must be pressed. On commissioning or

aer extended downtime, it may be necessary to

eliminate the “ignition block”. If this phenomenon

occurs frequently, contact a qualied technician

for assistance (e.g. Authorized After-Sales

Technical Assistance Service).

Overheating thermostat block. During normal

functioning, if a fault causes excessive overheating

internally, the boiler goes into overheating block

(code 02). Aer allowing to cool, eliminate the

"overtemperature block" by pressing the Reset

key (1). If this phenomenon occurs frequently,

contact a qualied technician for assistance (e.g.

Authorized After-Sales Technical Assistance

Service).

Fan anomaly. is occurs if the fan is blocked

or if the intake or drain pipes are obstructed. If

normal conditions are restored the boiler restarts

without having to be reset. If this anomaly

persists, contact a qualified technician for

assistance (e.g. Authorized Aer-Sales Service).

Generic boiler P.C.B. anomaly. is happens

when a signal is incorrectly recognised by

the boiler P.C.B. microprocessor (code 04).

To eliminate “boiler P.C.B. generic anomaly

block” the Reset button (1) must be pressed.

If this phenomenon occurs frequently, contact

a qualified technician for assistance (e.g.

Authorized After-Sales Technical Assistance

Service).

Delivery probe anomaly. If the board detects

an anomaly on the delivery probe (code 05), the

boiler will not start; contact a qualied technician

for assistance (e.g. Authorized After-Sales

Technical Assistance Service).

Domestic hot water probe anomaly. If the board

detects an anomaly on the domestic hot water

NTC probe, the boiler signals the anomaly. In this

case the boiler continues to produce domestic

hot water but not with optimal performance.

Moreover, the DHW anti-freeze function is

prevented and an authorised technician must

be called (e.g. Authorized Aer-Sales Service).

Maximum N° of reset. Number of allowed resets

that have already been used.

Insucient system pressure. Water pressure

inside the heating system (code 10), sucient to

guarantee the correct functioning of the boiler,

is not detected. Check that the system pressure

is between 1÷1.2 bar.

Flue gas pressure switch failure. It occurs in the

case of an error on the circuit board that gives

consent for fan start-up incorrectly or in the

case of ue-gas pressure switch fault (code 11). If

normal conditions are restored the boiler restarts

without having to be reset. If this anomaly

persists, contact a qualified technician for

assistance (e.g. Authorized Aer-Sales Service).

Conguration error. If the board detects an

anomaly or incongruency on the electric wiring,

the boiler will not start. If normal conditions are

restored the boiler restarts without having to be

reset. If this anomaly persists, contact a qualied

technician for assistance (e.g. Authorized Aer-

Sales Service).

Parasite ame. is occurs in case of a leak on

the detection circuit or anomaly in the ame

control unit.(code 20), try to reset the boiler.

If the anomlay continues contact a qualfied

technician (e.g. Authorized Aer-Sales Technical

Assistance Service).

Push button control panel anomaly. is occurs

when the P.C.B. detects an anomaly on the push

button control panel. If normal conditions are

restored the boiler restarts without having to be

reset. If this anomaly persists, contact a qualied

technician for assistance (e.g. Authorized Aer-

Sales Service).

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Immergas MINI EOLO 24 3E Instruction And Warning Book

Immergas MINI EOLO 24 3E Instruction And Warning Book

Immergas MINI EOLO 24 3E Instruction And Warning Book

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