IVEN B60 TFS 24

00334052 - 1st edition - 03/2011

INSTALLATION USEAND MAINTENANCE

IVEN B60 TN 24

2

General infoIMPORTANT

This INSTRUCTION MANUAL, which is an integral and indispensable part of the product, must be handed over to the user by the plumbers andmust be kept in a safe place for future reference. The manual must be handed over with the boiler should it be sold or transferred.

This boiler must be used for the purposes for which it has been designed. Any other use shall be considered incorrect and thereforedangerous.

The boiler must be installed in compliance with applicable laws and standards and according to the manufacturer’s instructions given in thismanual. Incorrect installation may cause injury to persons and/or animals and damage to property. The manufacturer shall not be held liable for anysuch injury and/or damage.

Damage and/or injury caused by incorrect installation or use and/or damage and/or injury due to non-observance of the manufacturer’s instructionsshall relieve UNICAL from any and all contractual and extracontractual liability.

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

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

Do not obstruct the air suction and/or heat dissipation grates.

Only original accessories must be used for all boilers supplied with optionals or kits (including electrical ones).

Dispose of the packaging with care as all the materials can be recycled. The packaging must therefore be sent to specific waste managementsites.

Keep the packaging out of the reach of children as it may represent a choking and suffocation hazard.

In the event of failure and/or faulty functioning, switch off the boiler. Do not attempt to make repairs: contact qualified technicians.

Original parts must be used for all repairs to the boiler.

Non-observance of the above requirement may jeopardize the safety of the boilers and expose people, animals and property to danger.

To guarantee efficiency and correct functioning of the equipment it is legally binding to service the boilers once a year according to theschedule indicated in the relative section of this manual.

In the event of long periods of inactivity of the boiler, disconnect it from the power mains and close the gas tap (Warning! In this case the boiler’selectronic anti-freeze function will not be operative).

Should there be a risk of freezing, add anti-freeze: it is not advisable to empty the system as this may result in damage; use specific anti-freezeproducts suitable for multi-metal heating systems.

N.B.For boilers which use gaseous fuel, if you smell gas:- do not turn on or off electrical switches and do not turn on electrical appliances;- do not ignite flames and do not smoke;- close the main gas tap;- open doors and windows;- contact a Service Centre, qualified installer or the gas supply company.

Never use flames to detect gas leaks.

WARNING

This boiler has been built for installation in the country indicated on the technical data plate: installation in any other country may be a sourceof danger for people, animals and property.

Read the warranty conditions and clauses on the warranty certificate attached to the boiler with care.

‘’WATER TREATMENT IN C.H. SYSTEM FOR CIVIL USE’’NOTE FOR INSTALLER AND USER

1) The frequency of the cleaning of the D.H.W. heat exchanger is related to the hardness of the feeding water.

2) With a water hardness higher than 28°f (16°d) the use of antiscaling devices, whose choice will be made on the base of water characteristics, issuggested.

3) To increase the resistance to the scaling, a D.H.W. temperature adjustment very close to that one of the actual use, is suggested.

4) The adoption of a modulating room thermostat reduces the scaling danger.

5) We advise you to verify the state of cleaness of the D.H.W. heat exchanger at the end of the first year and subsequently every two years.

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General info

TECHNICAL FEATURESAND DIMENSIONS ........................................................... pag. 41.1 Technical features .................................................................... pag. 41.2 Dimensions .............................................................................. pag. 41.3 Hydraulic circuits ..................................................................... pag. 51.4 Operating data ......................................................................... pag. 61.5 General features ...................................................................... pag. 6

DIRECTIONS FORINSTALLERS ......................................................................... pag. 72.1 Installations rules .................................................................... pag. 72.2 Installation ............................................................................... pag. 7

2.2.1 Packing ....................................................................... pag. 72.2.2 Positioning the boiler .................................................. pag. 82.2.3 Assembling the boiler ................................................. pag. 82.2.4 Ventilation ................................................................... pag. 92.2.5 Flue gas discharge system ........................................ pag. 92.2.6 Position of terminals for Type C boilers ...................... pag. 112.2.7 Discharge and suction pipe configuration .................. pag. 122.2.8 Discharge of flue gas into coaxial pipes with a

diameter of 100/60 mm (Type A accessories) ............ pag. 132.2.9 Flue gas discharge and air suction with separate

pipes with 80 mm diameter ........................................ pag. 142.2.10 Measurements of combustion efficiency .................... pag. 162.2.11 Connection to the gas mains ...................................... pag. 162.2.12 Hydraulic connection .................................................. pag. 172.2.13 Connection to the power mains .................................. pag. 17

2.3 Wiring diagram ........................................................................ pag. 182.4 Filling the system .................................................................... pag. 202.5 Starting the boiler .................................................................... pag. 212.6 Adjusting the burner ................................................................ pag. 212.7 Modification of other gases ..................................................... pag. 222.8 Adapting thermal power to the heating system ...................... pag. 23

USERS' INSTRUCTION ............................................... pag. 243.1 Control panel ........................................................................... pag. 243.2 Switchting ................................................................................ pag. 253.3 Maintenance ............................................................................ pag. 25

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fig. 1

1.2 - DIMENSIONS

600 476

855

493

General info

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Directive Gas 90/396/EEC dated 29 June1990;Yield Directive 92/42 EEC dated 21 May 1992;EMC Directive 89/336/EEC dated 3 May 1989amended by Directive 92/31/EEC dated 28April 1992;European Community’s Low Voltage Directive73/23/EEC dated 19 February 1973 amendedby Directive 93/68/EEC dated 22 July 1993;and is supplied with all safety features pur-suant to relative applicable laws.

The main technical features of the IVEN Bboilers are summarised below.• High-performance copper heat exhanger• 60-litre enamelled upright storage tank

with a helical steel heat exchanger• Magnesium anode• Electronic ignition;• Electronic flame modulation;• Minimum thermal power control;• Electronic control of ignition ramp;• Anti-freeze function;• D.H.W. precedence thermostat• Pump anti-blocking function;

• Pump over run function;• Safety limit thermostat (85°C);• Three-way motorised valve;• Three-speed circulation pump with auto-

matic air vent• Manual air vent for system filling• 7,5 litre expansion vessel;• System water inlet tap;• Safety pressure switch for low water level;• Control panel with IP44 class protection;• Temperature and pressure gauge;• Warning light for: presence of power, re-

quest for heating, burner in function, cutoff;

• D.H.W. temperature selector (45/65°C);• Heating temperature selector (35/85°C).• Reset button;• Summer / Off / Winter / Anti-freeze selecto• Assembly template for connection layout.

IVEN B60 is a gas boiler with atmosphericgas burner; and 60-litre storage tank; it isavailable in the following versions:

TN with natural draught open chamber;TFS with forced draught Sealed

combustion chamber;

All versions have electronic ignition.

Models in the IVEN series:

IVEN B60 TN 24:open boiler with electronic ignition;

IVEN B60 TFS 24:forced draught sealed boiler with electronicignition;

The IVEN B60 boilers comply with the fun-damental requirements of the following EECdirectives:

TECHNICAL FEATURESAND SIZES

1.1 - TECHNICALFEATURES

5

1.3 - HYDRAULIC CIRCUIT

IVEN B60 TN 24

fig. 3

fig. 2

IVEN B60 TFS 24

1 - 3 bar safety valve2 - 3-way valve3 - Water pressure switch4 - Pump with automatic air vent5 - Ignition card6 - Gas valve7 - Ignition electrode8 - Burner9 - Ionisation electrode10 - Overheating safety device11 - Heat exchanger12 - Temperature probe13 - Flue gas thermostat14 - Manual air vent15 - Heating expansion vessel16 - Storage tank17 - D.H.W. expansion vessel (optional)18 - Storage tank thermostat19 - Magnesium anode20 - Boiler drain tap21 - Filling system22 - 7 bar safety valve

M - Heating system flowC - D.H.W. outletG - Gas inletF - D.C.W. inletR - Return from system

1 - 3 bar safety valve2 - 3-way valve3 - Water pressure switch4 - Pump with automatic air vent5 - Ignition card6 - Gas valve7 - Ignition electrode8 - Burner9 - Ionisation electrode10 - Overheating safety device11 - Heat exchanger12 - Temperature probe13 - Flue gas circuit safety pressure switch14 - Manual air vent15 - Heating expansion vessel16 - Storage tank17 - D.H.W. expansion vessel (optional)18 - Storage tank thermostat19 - Magnesium anode20 - Boiler drain tap21 - Filling system22 - 7 bar safety valve23 - Flue gas fan

M - Heating system flowC - D.H.W. outletG - Gas inletF - D.C.W. inletR - Return from system

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R M C F

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1

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G R M C F

General info

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General info1.4 - OPERATING DATAThe pressures at the burner indicated in the following table must be checked after the boiler has been operating for 3 minutes.

OUTPUT INPUT BURNER PRESSURE

FUNCTION POWER CAPACITY (mbar)

(kW) (kW) Natural gas Butane gas Propane gas

IVEN B60 TN 24 23.8 12.5 - 26.5 2.9 - 12.3 5.3 - 23.5 7.1 - 30.3

IVEN B60 TFS 24 24.0 12.5 - 26.5 3.2 - 13.2 5.8 - 25.1 7.6 - 32.2

Production of D.H.W. with 45°C delta T delta T di 45K = 7.2 l/min.Production of D.H.W. with 45°C delta T delta T di 40K = 8.1 l/min.Production of D.H.W. with 45°C delta T delta T di 35K = 9.3 l/min.Production of D.H.W. with 45°C delta T delta T di 30K = 10.8 l/min.Quantity of D.H.W. available at 45°C in the first ten minutes of use with storage tank water at 60°C and cold water at 10°C = 121.7 litres.

II2H3+137,50,530,5760230/50411016572,578

min. 1,32 - max. 2,80min. 0,98 - max. 2,09min. 0,97 - max. 2,05

90657,5138

n°l/minbarbarbarbarlV-HzA (F)WWkgkg

m³/hkg/hkg/h

°C°Cll

Equipment categoryBurner nozzlesMinimum rate of the heating circuitMinimum pressure of the heating circuitMaximum pressure of the heating circuitMinimum pressure of the D.H.W. circuitMaximum pressure of the D.H.W. circuitStorage tank capacityPower supply Voltage/FrequencyFuse on the supply mainsMaximum absorbed power TN 24Maximum absorbed power TFS 24Net weight TN 24Net weight TFS 24

Consumption of natural gas TN 24\TFS 24 (*)Consumption of butane gas TN 24\TFS 24Consumption of propane gas TN 24\TFS 24

Maximum operating temperature of the heating circuitMaximum operating temperature of D.H.W. circuitTotal capacity of the expansion vesselMax water content (**)

(*) Value refers to 15°C - 1013 mbar (**) Calculated for a maximum temperature of 90°C

1.5 - GENERAL FEATURES

Pmax. Pmin. 30% red. load3.0 4.547.2 9.519.8 18.186.94.989.81 88.78

1.85 1.097.7 11.116.5 17.7108.85.990.45 88.36

%%g/s°C%%

%%g/s°C%%

IVEN B60 TN 24

Jacket heat dispersionChimney loss with burner functioningMass rate of flue gasT flue – T airCO2 valueUseful thermal efficiency

IVEN B60 TFS 24Jacket heat dispersionChimney loss with burner functioningMass rate of flue gasT flue – T airCO2 valueUseful thermal efficiency

7

fig. 4

65

0

650

960

Installation info

2

2.1 - INSTALLATIONREGULATION

IVEN B60 is an II2H3+ class boiler whichmust be installed pursuant to applicablestandards and laws.

DIRECTIONSFOR INSTALLERS

2.2 - INSTALLATION

2.2.1 - PACKING

IVEN B60 is packed and delivered in a strongcardboard box. Once the boiler has beenunpacked check that it is intact. The packa-ging material can be recycled and it must bedisposed of accordingly.Keep the packaging out of the reach of chil-dren as it represents a choking and suffoca-tion hazard.

UNICAL waives all liability for injury to per-sons and animals or damage to propertyresulting from non-observance of the abo-ve.

The packaging contains:- the copper pipe kit for hydraulic connec-

tion of the boiler to the heating and watersystem and to the gas mains;

- a bag with:a) installation, use and maintenance hand-

book,b) template for fixing the boiler to the wall,c) 4 screws with dowels to fix the boiler to

the wall,d) for models TFS, a diaphragm for flue gas

exhaust.

8

165

135

16

0

50

290

65

88

0

78

0

R G M C F

140,5 68 59117

199 190

17523,5

35

600

S S S

90

Ø 100 (only for version IVEN B60 TFS 24)

147,568

MOUNTING JIGS FOR BOILERCONNECTIONS(code 00211067)

fig. 5

2.2.2 - POSITIONING THE BOILER

When choosing the position of the boiler:- refer to the indications given in the section

“Flue gas exhaust system “.- remember that it is advisable to leave a

space of 50 mm on each side of the boilerto facilitate maintenance operations.

- check that the walls are suitable.

- avoid fixing the boiler to thin partitions.- avoid installing the boiler above applian-

ces which might affect operation when inuse (cookers which produce greasy ste-am, washing machines etc.)

- avoid installing natural draught boilers incorrosive or very dusty atmospheres suchas hairdressers’, laundrettes etc. as the lifeof the boiler components could be signifi-

cantly shortened.- 350 mm free space must be left between

the top of the boiler and the ceiling to allowreplacement of the magnesium anode. Thiscondition is met when there is a space of436 mm between the axis of the holes inthe boiler bracket and the ceiling.

C = D.H.W. outlet 1/2"F = D.C.W. inlet 1/2"G = Gas inlet 3/4"M = Heating system flow 3/4"R = Return from system 3/4"

2.2.3 - ASSEMBLING THE BOILER

Before connecting the boiler to the D.H.W. andheating system pipes, carefully clean the pi-pes to remove all traces of metal resulting fromprocessing and welding operations as well asany oil and grease which could damage theboiler or jeopardize its operation.NB: Do not use solvents which could damagethe components.

Unical declines all liability for injury to per-sons and animals or damage to propertyresulting from non-observance of the abo-ve.To install the boiler:- fix the template to the wall;- make four, Ø 10 holes in the wall for the

dowels and insert the hooks;Warning! Rispect the minimum distan-ce between hook and ceiling (436 mm).

- position the junction points for the connec-tion of the gas supply pipe, cold water sup-ply pipe, D.H.W. outlet, CH flow and returnby using the mounting jigs (lower part);

- fit the boiler onto the support hooks;- join the boiler and supply pipes using the

pipe kit supplied;- connect the boiler to the intake and outlet

system;- connect to the power mains.

Installation info

9

2.2.4 - VENTILATION

Boiler model IVEN B60 TN 24 have an opencombustion chamber and have been desi-gned for connection to a chimney: the com-bustion air is taken directly from the roomin which the boiler is installed.The boiler must be installed in a suitable roompursuant to applicable standards and lawswhich shall be considered as having beentranscribed in full in this manual.

2.2.5 - FLUE GAS DISCHARGESYSTEM

NATURAL DRAUGHT BOILER

Connection to the chimney

The chimney is indispensable for the correctfunctioning of the boiler; it must therefore con-form with the following requirements:- it must be made from waterproof material

and be resistant at the temperature of theflue gas and relative condensate;

- it must have sufficient mechanical stren-gth and low thermal conductivity;

- it must be perfectly sealed to prevent co-oling due to parasite air inlets;

- it must be as vertical as possible and theend section must have a chimney cap whi-ch guarantees efficient and constant remo-val of the combustion products;

- the chimney must have a larger diameterthan that of the boiler’s draught stop; forchimneys with a square or rectangular sec-tion, the internal section must be 10% lar-ger than the section of the connection ductto the draught stop;

- starting from the draught stop, the duct fit-ting must have a vertical section of morethan twice the diameter before joining thechimney.

Direct emission into the atmosphere

Natural draught boilers can discharge combu-stion products directly into the atmosphereusing a duct which goes through the outsidewalls of the building connected to a flueexhaust terminal.The exhaust duct must also comply with thefollowing requirements:- the sub-horizontal part inside the building

must be as short as possible (no more than1.000 mm);

- for boiler with vertical discharge, such asboiler IVEN B60 TN 24, there must be nomore than 2 direction changes;

- it must receive the discharge from a singleboiler;

- the part going through the wall must be pro-tected by a sheath duct; the part of thesheath duct facing the inside of the buil-ding must be closed and the part facingoutwards must be open;

- the final section, on which the draught ou-tlet will be fixed, must protrude from thewall of the building for a length of a leasttwice the diameter of the duct;

- the draught outlet must overlap the con-nection to the boiler exhaust duct connec-tion by at least 1.5 metres (see fig. 6)

Installation info

Boiler model IVEN B60 TFS 24 have a sea-led combustion chamber with reference tothe environment in which it is installed, so nospecial measures need be taken as regar-ds ventilation for the combustion air.

This is valid also for the room the boiler willbe installed in.

The boiler must be installed in a suitable roompursuant to applicable standards and lawswhich shall be considered as having beenincorporated in full in this manual.

10

fig. 6

fig. 7

fig. 8

2 Ø min. 2 Ø min.

Ø

1,5

m m

in. Ø

2 Ø 1 m max. 1 m max.

> 3

Ø>

3 Ø

1,5

m m

in.

2 Ø

Inclinationmin. 3%

Inclinationmin. 3%

246135

Ø 130

600 476

85

5

Installation info

DIMENSIONAL HEIGHTS FOR CONNECTING THEFLUE GAS EXHAUST DUCTS

WARNING:The boiler is fitted with an automatic safetyreset device as protection against leakage ofcombustion products inside the building (fig.8).After 15 minutes the boiler will automaticallyreset.

It is absolutely forbidden to tamper withand/or exclude the safety device.

If the boiler cuts off regularly, check the fluegas exhaust duct. This duct may be obstructedor may be unsuitable for the discharge of fluegas into the atmosphere.

UNICAL waives all liability for damage cau-sed as a result of incorrect installation, use,modification of the boilers or for non-ob-servance of the instructions provided bythe manufacturer or applicable installationstandards for the product in question.

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Installation info

fig. 9

Pursuant to the directives of regulations inforce, discharge of forced draught boilers can

2.2.6 - POSITIONING OF TERMINALS FOR TYPE ‘’C’’BOILERS

either take place through the roof or directlyoutwards the room they are installed in. Thefollowing distances shall be considered forterminals proper positioning:

POSITIONING OF TERMINALS FOR "FORCED DRAUGHT" BOILERS

Min.

POSITIONING OF THE TERMINAL distances in mm.

Under a window A 600

Under a ventilation opening B 600

Under a gutter C 300

Under a balcony (1) D 300

From an adjancent window E 400

From an adjacent ventilation opening F 600

From vertical or horizontal air pipes or drains (2) G 300

From an external corner of the building H 300

From an internal corner of the building I 300

From the ground or from another floor L 2500

Between two vertical terminals M 1500

Between two horizontal terminals N 1000

From a facing front surface without opening or teminals within a radius

of 3 mt. from smoke outlet point O 2000

As above, but with openings or terminals within a radius of 3 mt. from

smoke outlet point P 3000

NOTES(1) Terminals below a practicable balcony shall be arranged in such a way as to assure that the total run of smokes, from their outlet from

terminal up to outlet from balcony external perimeter, including the height of protection baluster, if any, is not less than 2 m.(2) Distances of not less than 500 mm shall be adopted in placing the terminals, due to the proximity to materials subject to the action of

products of combustion such as plastic gutters or waterspouts, wooden jetties, etc.) unless adequate screeening measures are taken forthe said materials.

FLUE TERMINAL POSITIONING

FORCED DRAUGHT BOILERThe distances specified in appliance standar-ds and laws must be complied with when po-sitioning the boiler vent terminals on walls.

12

2.2.7 - SMOKE DISCARGE ANDAIR SUCTION DUCTCONFIGURATIONC12, C32, C42, C52, C62,C82 - B22

typeC12

typeC32

typeC52

type C82

typeC62

typeC42

C12 Boiler designed for connection to hori-zontal exhaust and suction terminalsdirectly into the atmosphereusing coaxial or dual ducts. The distan-ce between the air intake duct and theflue gas outlet duct must be at least250 mm and both end sections mustbe located within a 500 mm square.

C32 Boiler designed for connection to verti-cal discharge and suction outlets directlyinto the atmosphereusing coaxial or dual ducts. The distan-ce between the air intake duct and theflue gas outlet duct must be at least250 mm and both end sections mustbe located within a 500 mm square.

C42 Boiler designed for connection to col-lective chimneys including two ducts,one for the suction of com-bustion air and the other for the exhaustof the combustion products,through coaxial or dual ducts.

The chimney must comply with rele-vant applicable law provisions.

C52 Boiler with separate combustion air suction and combustion productexhaust ducts.These ducts can discharge into are-as with different pressure.The dual ducts must not be locatedon two opposite walls.

C62 Boiler that has to be connected to asystem of air supply and smoke of ap-proved type and sold apart.

C82 Boiler designed for connection to an airsupply terminal and fitted to an indivi-dual or shared chimney.

The chimney must comply with rele-vant applicable law provisions.

Note: type B22is not approved by

Turkish market.

Installation info

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600 476

88

09

5

182

Ø 1

00

165

fig. 11

To 1,5 m

fig. 10

Diaphragm

DIMENSIONAL HEIGHTS FOR CONNECTION OF THE FLUE GAS DISCHARGETO COAXIAL DUCTS

Neopreneseal

EXAMPLE WITH COAXIAL PIPES2.2.8 Discharge of flue gas into

coaxial ducts with a diameterof 100/60 mm (Type A acces-sories)

Type C12The minimum lenght of horizontal coaxialducts is 0.5 metres. The maximum allowa-ble length of horizontal coaxial ducts is 3metres; for each additional bend the maxi-mum allowable length must be reduced by1 metre. Moreover, the duct must have adownward dip of 1% towards the outlet pointto prevent rain water from getting into theduct.

Type C32The minimum lenght of vertical coaxialducts is 0.5 metres. The maximum allowa-ble length of vertical coaxial ducts is 4 me-tres including the stack; for each additio-nal bend the maximum allowable lengthmust be reduced by 1 metre.

The diaphragm supplied with the boilermust be inserted in the flue gas exhaustpipe as shown in figure 10 for installa-tions with a coaxial pipe of 0.5 m to 1,5m.

Installation info

Diaphragm

14

fig. 13

fig. 12

Installation info

Diaphragm

EXAMPLE WITH DUAL DUCT

Up to ΔΔΔΔΔ P = 40 Pa

Neoprene seal

2.2.9 Flue gas exhaust and airsuction with dual ducts with 80mm diameter (type B acces-sories)

N.B. The maximum allowable load lossmust be the same as the valuesshown in the following examples,depending on the type of installation.For all installations with a load lossof less than or equal to 40 Pa, it isnecessary the fit the diaphragm pro-vided inside the flue gas dischargeduct (see fig. 12).

ImportantIf the flue gas discharge duct has to runthrough walls and/or infrastructures or if itis easily accessible, it must be properlyinsulated as it can reach very high tempe-ratures – over 120°C.

Diaphragm

DIMENSIONAL HEIGHTS FOR CONNECTION OF FLUE GAS DISCHARGE WITH

DUAL DUCTS

600 476

880

Ø 80

182120

165

15

fig. 15

> 50

0_

Installation infoExample No. 1Primary air suction from perimeter wall and fluegas discharge on roof.

Maximum allowable load loss:65 Pa

16

Example No. 2Primary air suction from perimeter wall andflue gas discharge from the same outside pe-rimeter wall.Maximum allowable load loss:80 Pa

fig. 16

45

Hmin. = 165 mm

135

Min200 mm

fig. 17

A

21

B

1

2

Installation info

CALCULATION OF PRESSURE LOSSESFOR DISCHARGE AND SUCTION DUCTS

Bear in mind the following parameters whencalculating pressure losses:- for each metre of duct with Ø 80 (both

suction and discharge) the pressure lossis 2 Pa;

- for each 90° Ø 80 (R=D) bend with longradius, the pressure loss is 2 Pa;

- for each 90° Ø 80 (R=½ D) bend withshort radius, the pressure loss is 6 Pa insuction and 8 Pa in discharge;

- for the Ø 80 L = 0.5 m horizontal air inletterminal, the pressure loss is 3 Pa;

- for the Ø 80 L = 0.6 m horizontaldischarge end section, the pressure lossis 5 Pa;

- 2 short radius 90° Ø 80 curves + 1adapter Ø 80, the pressure loss is 14Pa.

Example of check using wide radiusbends:- 2 Ø 80 long radius 90° bends + 1 adapter

Ø 80 = (14 Pa)- 29 mt duct Ø 80 x 2 = (58 Pa)

NB: These values refer to di-scharges through original UNI-CAL non-flexible and smoothducts.

- horizontal Ø 80 air inlet terminal = 3 Pa- horizontal Ø 80 terminal = 5 PaTot. pressure loss = 80 Pa

2.2.10 - MEASUREMENTS OF COMBUSTION EFFICIENCY

(Type A accessories)Coaxial ducts

To determine combustion efficiency the fol-lowing measurements must be made:- the combustion air measured in hole 2 (see

fig. 17).- the flue gas temperature and CO2 measu-

red in hole 1 (see fig. 17).

(Type B accessories)Dual ducts

To determine the combustion efficiency thefollowing measurements must be made:- the combustion air measured in 2 (see

fig. 17).- the flue gas temperature and CO2 measu-

red in hole 1 (see fig. 17).

Make these measurements with the boilerrunning.

Smoke

Air

Analyser probe

Analyserprobe

Analyserprobe

2.2.11 - CONNECTION TO THEGAS MAINS

The supply pipe must have a section which isthe same as or greater than the one used inthe boiler.Comply with the applicable installationstandards which shall be considered as

The seal test must be conducted using fuelgas: use air or nitrogen.When gas is flowing in the pipes, remem-ber never to look for gas leaks using anaked flame.Use specific products found on the marketfor the purpose.

having been incorporated in full in thismanual.Before opening the internal gas distribu-tion system; i.e. before connecting the gasmeter, all seals must be checked.If any part of the system is concealed theseals must be checked before the pipes arecovered.

17

Installation info

fig. 18

fig. 19

PRODUCTION OF D.H.W.

Dra

win

g te

mpe

ratu

re °C

Flow rate (Q) l/h

Pre

ssu

re a

vaila

ble

m.c

.a.

DIAGRAM OF FLOW RATE/PRESSURE AVAILABLE FOR THE INSTALLATION2.2.12 – HYDRAULIC CONNECTION

Before installing the boiler we recommend thatthe system be cleaned to remove any impuri-ties which could originate from componentsand which could risk damaging the circulatingpump and exchanger.

HEATINGThe heating flow and return must be connectedto the relative ¾” connections of the boiler Mand R (see fig. 5).When determining the size of the heating cir-cuit pipes it is essential to bear in mind theload losses induced by radiators, any thermo-static valves, radiator cut-off valves and theconfiguration of the system.

We recommend that the discharge of the sa-fety valve mounted in the boiler be conveyedinto the sewer.

If this precaution is not taken, activation ofthe safety valve may result in flooding of theroom where the boiler is installed.

UNICAL shall not be held responsible for da-mage caused by non-observance of this tech-nical precaution.

UNICAL shall not be held responsible fordamage caused by non-observance of thistechnical precaution.

D.H.W.Outlet and inlet of D.H.W. must be connectedto the relative ½” connections of the boiler Cand F (see fig. 5).

The mains supply pressure must not exceed7 bar. A pressure reducer and the sanitaryexpension vessel kit must be installed if thepressure is higher.

It is advisable to limit the pressure in theD.H.W. system to 3 bar.

WARNINGDepending on the hardness of the supplywater, it is important to assess the conve-nience of installing a domestic device todose products of food purity which can beused to treat the drinking water.It is always advisable to treat the water ifthe supply water has a hardness value ofmore than 20°F.

WARNINGDue to its pH value, water supplied fromnormal water softeners may not be compa-tible with some components of the heatingsystem.

IMPORTANTThe outlet of the safety valves in the boiler

should be connected to the drainage sy-stem, otherwisethe room may get flooded if the safety val-ves come into operation.

UNICAL shall not be held responsible fordanaged caused by non-observance of thistechnical precaution.

2.2.13 - CONNECTION TO THEPOWER MAINS

The IVEN B60 boiler is supplied with a triple-pole lead, already connected at one end tothe electronic board and protected againsttearing by a special cable clip.

The boiler must be connected to the powermains at 230V-50Hz.Make sure the poles correspond, correctlyconnecting phase and neutral.

When installing the boiler comply withapplicable standards which shall be con-sidered as having been incorporated infull in this manual.

A bipolar switch must be installed upstreamof the boiler to enable all maintenance opera-tions to be carried out safely.

The boiler mains supply must be protected bya differential magnetothermal switch with ap-propriate breaking power.

The mains power supply must be earthed.

This fundamental requirement for safety pur-poses must be checked; in case of doubt,ask for a professionally qualified technicianto check the electrical system.

UNICAL disclaims all liability for damageon injury caused by failure to earth the sy-stem properly.Gas, domestic water and central heating pi-pes are not suitable for earthing purposes.

ΔΔΔΔΔt mean = 41,9°CQuantity drawn at 10 litres/min

18

IVEN B60 TN/TFS 24

fig. 20

Installation info2.3 - WIRING DIAGRAM

A1...A6 = Utilities connectorsAG = AntifrostDK = Safety pressure switch against

Low water levelE/I = Summer/Winter switchIG = Main switch

LL = Power lightMD = Coil modulatingMVD = Motore 3-way valveP = Circulating pumpP1 = Temperature regulator (factory

setting)

SR = Heating detectorSS = D.H.W. detectorTA = Ambient thermostat (optional)TF = Flue gas anti-overflow sensor

WHITE

GREENREDBLUEBROWN

D.H

.W.

C.H

.

MVD

P

MO

DU

LATI

N

BO

AR

D

ALI

MEN

TATI

ON

230

V - 5

0 H

z

BLUEBROWN

BROWNBLACK IG

BROWNBLUE

ALI

MEN

TATI

ON

230

V - 5

0 H

zTABLACK

A3

A2

GN

D2

GN

D3

A1

Y2Y1

LIN

E2

1G

ND

1R

OO

MST

AT1

2

HTL

GN

D1

(2)

(5)

HIGH

A4

P3

A6

A5

(4)

(3)

SOFTL

P2

TAPC160

P1

CH

-PO

WER

TMO

D (1)

A3

GN

D2

GN

D3

GN

D

LIN

E

NE

UTR

AL

Y2Y1 RO

OM

STA

T

MA

IN S

WIT

CH

A1

A2

(1)

(2)TM

OD

TA O

N/O

FFTA

OM

OD

ULAT

ING

HLT

SEEP

ER C

ON

TACT

(PT)

(3)

HIGH

BURNER LEVEL ‘’LOW’’

(4)

(5)

SOFTL

BURNER LEVEL ‘’HIGH’’

NATURAL GASGPL

CONTINUES PUMPPUMP POST CIRCULATION

TANIGHT

BURNER IGNITION OFFBURNER IGNITION ON

PT

BLACK

A4

ORANGE

GREYBLUE

WHITERED E/

IA

GLL

SSFR

BROWNBLUE

A5

SRD

KTF

MD

WHITEWHITE

WHITEBROWN

BLUEBLUE

GREENGREEN

A6

VER

SIO

N T

NV

ERSI

ON

TFS

GREENGREENWHITEBROWN

WHITEWHITE

MD

DK

SR

19

WIRING DIAGRAM - IGNITION CARD IVEN B60 TN/TFS 24

fig. 21

Installation info

BLACKBLACK

BLEU

YELLOW/GREEN

BLEU

BROWNBLACK

BLEU

BLACK

ORANGE

WHITERED

BLU

YELLOW/GREEN

TEFLON RED (E. ACC. 1)

TEFLON WHITE (E. RIV)

GREEN

ALIMENTAT.230 V - 50 Hz

ALIMENTAT.230 V - 50 Hz

ELE

CT

RO

DE

OU

TLE

TC

ON

NE

CT

ION

MO

DU

LAT

ING

BO

AR

D

MO

DU

LAT

ING

BO

AR

D

CONNECTION

BROWN

BLEU

YELLOW/GREEN

BROWN

BLEU

BLEUBLEU

BLEU

BROWN

BLACK

ORANGE

BROWN

IVEN B60 TN 24 IVEN B60 TFS 24

20

Rubinetto di caricoimpianto

fig. 22

Installation info

fig. 23

2.4 - FILLING THE SYSTEM

After completing all the connections of thesystem the heating circuit can be filled.This filling operation must be performed withcare as follows:- open the air vents of the radiators and che-

ck that the automatic air vent in the boileris functioning;

- gradually open the special water inlet tapand check operation of any automatic airvents installed in the system;

- close the air vents on the radiators as soonas water comes out;

- use the pressure gauge on the boiler tocheck that the pressure has reached thevalue of 0.8/1bar;

- close the water inlet tap and then releasethe air again through the radiator air vents;

- after switching on the boiler and after thesystem has reached the correct tempera-ture, stop the pump and repeat the air re-lief operations;

- let the system cool down and then adjustthe water pressure to 0.8/1 bar.

WARNINGTo optimise the efficiency and safety ofheating systems used for domestic pur-poses, to keep them in good working or-der over time, to ensure long-lasting effi-cient functioning also of ancillary equip-ment and to minimise energy consump-tion, thus complying with relative standar-ds and laws, it is essential to treat thewater using specific products compatiblewith multimetal systems.

WARNINGThe low water level safety pressure switchdoes not give electrical impulse to the burnerto ignite when the pressure is lower than 0.4/0.6 bar. The pressure of the water in the hea-ting system must not be lower than 0.8/1bar;if this value is lower use the water inlet tap onthe boiler to adjust the pressure.This must be performed when the system iscold. Use the temperature and pressure gau-

ge on the boiler to read the pressure value ofthe circuit.

NB: After a given period of inactivitythe pump could be blocked.Before switching on the boiler itis important to restart the pumpas follows: loosen the protectionscrew in the centre of the pump en-gine, in sert a screwdriver in the holeand then manually rotate the pumpshaft clockwise.Once the pump has been restartedtighten the protection screwand check that there are no waterleaks.

WARNINGOnce the protection screw has been remo-ved a little water may leak out. Before re-placing the cover of the boiler dry any wetsurfaces.

Example: At 25°C, the nominal resistance is 10067 OhmAt 90°C, the nominal resistance is 920 Ohm

Relation between the temperature (°C) and nominal resistance (Ohm)of the heating sensor SR and D.H.W. sensor SS

TABLE OF RESISTANCE VALUES AS A FUNCTION OF THE TEMPERATUREOF THE HEATING SENSOR (SR) AND D.H.W. SENSOR (SS)

T°C 0 1 2 3 4 5 6 7 8 9

0 32755 31137 29607 28161 26795 25502 24278 23121 22025 2098710 20003 19072 18189 17351 16557 15803 15088 14410 13765 1315320 12571 12019 11493 10994 10519 10067 9636 9227 8837 846630 8112 7775 7454 7147 6855 6577 6311 6057 5815 558440 5363 5152 4951 4758 4574 4398 4230 4069 3915 376850 3627 3491 3362 3238 3119 3006 2897 2792 2692 259660 2504 2415 2330 2249 2171 2096 2023 1954 1888 182470 1762 1703 1646 1592 1539 1488 1440 1393 1348 130480 1263 1222 1183 1146 1110 1075 1042 1010 979 94990 920 892 865 839 814 790 766 744 722 701

21

fig. 24

C

A

B

fig. 25

RMP

MP

B A

Connect the pressure gauge on MP (version TN)Connect the pressure gauge on MP and RMP (version TFS)MP = Pressure tubeRMP = Differential pressure point

MODULATION BOARD

PRESSURE MEASURING POINTS

Regulation info3.4.2 - SWITCHING ON/OFF

To switch on and off the boiler follow the indi-cations in the “Users’ Instructions”.

(pressure at the hydrometer 0.8/1 bar);- any cut-off taps of the system are open;- the mains gas corresponds to that with

which the boiler has been calibrated: othe-rwise, convert the boiler to use the gasavailable (see section: “MODIFICATIONFOR OTHER GASES “): this operationmust be performed by qualified techni-cians;

- the gas supply tap is open;- there are no gas leaks;- the external mains switch is on;- the boiler’s safety valve is not locked;- there are no water leaks.

2.5 - STARTING THEBOILER

2.5.1. - PRELIMINARY CHECKS

Before starting the boiler check that:- the flue gas exhaust duct and the outlet

section are installed correctly: when theboiler is switched on there must be noleakage of any combustion productsfrom any seals;

- the supply voltage of the boiler is 230 V-50 Hz;

- the system is correctly filled with water

2.6 - ADJUSTINGTHE BURNER

All the instructions below are for the exclusi-ve use of qualified technicians.All the burners leave the factory calibrated andtested.If it is necessary to change the calibration fol-lowing changes in the type of gas or adapta-tion to the supply network conditions, it isnecessary to recalibrate the gas valve.To correctly regulate the gas valve, follow thesteps below:

A) Setting maximum power- Check the feed pressure value (see NOZ-

ZLES – PRESSURES table).- Remove the plastic cap C (fig. 24) protec-

ting the pressure regulator screws on thetop of the modulator coil.

- Set the heating system water to the maxi-mum temperature.

- Connect a U gauge according to the in-structions given in fig. 25.

- Set the thermal power regulator P to MA-XIMUM, turning CLOCKWISE.

- Switch the Summer / Off / Winter / Anti-freeze selector to the Winter position.

- Check that the contact of the ambient ther-mostat TA is closed.

- Turn the (outer) nut A CLOCKWISE to in-crease the pressure at the nozzles or AN-TICLOCKWISE to decrease it.

B) Setting minimum power- Disconnect the modulator coil electrically.- Ignite the burner and check whether the

MINIMUM pressure corresponds to thevalue shown in the NOZZLES-PRESSU-RES table.

- Set the required pressure. Hold the nut Afirmly using a 10 mm spanner and turn thescrew B CLOCKWISE to increase the pres-sure or ANTICLOCKWISE to decrease it.

- Reconnect the coil.

C) Final operations- Recheck the maximum and minimum gas

valve pressures and adjust if necessary.- Remount the plastic cap C.- Close the gas intakes.- Check for any gas leaks.

22

fig. 27

2

fig. 26

Regulation Info2.7 - MODIFICATION FOR

OTHER GASES

The IVEN B60 boilers are manufactured forthe type of gas specifically required upon or-der.Any subsequent conversion must be perfor-med by qualified technicians who will use thekits supplied by Unical and perform the con-version and required adjustments for correctpreparation of the boiler for use.

To convert the boiler from one type of gas toanother:- remove the main burner;- Remove the 13 nozzles 1 (fig. 26) from the

main burner and replace them with onesof a diameter suitable for the new gas (seeNOZZLES – FLOW RATES – PRESSU-RES table).

- Fit (for gas GPL only version 24 kW) orremove (for natural gas) the diaphragm 2at the gas valve outlet.

- Fit the main burner back in position.- position the jumper ''160'' (4) on the modu-

lation card in the electrical panel in the cor-rect position

- Check the pressure upstream of the gas

valve (see NOZZLES – PRESSURES ta-ble) and regulate the burner pressure asinstructed in the section entitled HOW TOADJUST THE BURNER.

- Check that the burner works correctly.- Make sure there are no gas leaks.

Lastly, fill in the gas change label providedwith the conversion kit and affix it to the boilernext to the specification sticker.

The pressures at the burner indicated in the following table must be checked after the boiler has been operating for 3 minutes.TABLE NOZZLES - PRESSION - DIAPHRAGME - CONSUMPTION

IVEN B60 TFS 24

Pressure Ø Nozzles Ø Diaphragm Burner Pressure

Type of gas supply (mm) (mm) (mbar)

(mbar) Minimum Maximum

Natural Gas 20 1.20 - 3.2 13.2

Butan Gas 28 0.77 5,1 5.8 25.1

Propan Gas 37 0.77 5,1 7.6 32.2

NOZZLES - PRESSURES

IVEN B60 TN 24

Pressure Ø Nozzles Ø Diaphragm Burner Pressure

Type of gas supply (mm) (mm) (mbar)

(mbar) Minimum Maximum

Natural Gas 20 1.20 - 2.9 12.3

Butan Gas 28 0.77 4.9 5.3 23.5

Propan Gas 37 0.77 4.9 7.1 30.3

fig. 28

23

Regulation info2.8 - ADAPTING THERMAL

POWER TO THE HEA-TING SYSTEM

fig. 28

fig. 29

GAS PRESSURE BURNER DIAGRAM CORRESPONDING TOTHE SYSTEMS OUTPUT

With the heating system cold.Connect the pressure gauge to the burner as

shown in fig. 28, switch on the boiler in he-ating mode and proceed as follows.

- Wait about two minutes to allow the pres-sure to reach the operating value.

- Read the pressure measured and check thatthe thermal power generated by the boilersuits the installation requirements.

- If necessary – but this is not compulsory– you can regulate the potentiometer P1 onthe modulation board to adjust the thermalpower to the heating system. Turn the po-tentiometer clockwise (seen from the front)to increase the pressure or anticlockwiseto decrease it.

NoteSince the boiler is the modulating type, itautomatically adapts the thermal power tothe features of the heating system. By ope-rating potentiometer P1 you effectively li-mit the maximum power of the boiler andhence its pickup capacity.

Using the pressure/thermal power graph(fig. 29)

Assuming that the heating system has atotal absorption of 18 kW, using the graphin figure 29 you can determine the maxi-mum pressure at which the burner can beset.

Example 1If the boiler runs on methane gas, adjustthe potentiometer P1 to set the pressure to8 mbar for version 24 TN and to 8.2 mbarfor version 24 TFS.

Example 2If the boiler runs on butane gas, adjust thepotentiometer P1 to set the pressure to 14.8mbar for version 24 TN and to 15.2 mbarfor version 28 TFS.

Example 3If the boiler runs on propane gas, adjust thepotentiometer P1 to set the pressure to 19mbar for version 24 TN and to 20 mbar forversion 28 TFS.

00

5

10

15

25

20

30

1

Natural Gas (mbar)

Out

pu

t k

W

Butan Gas (mbar)

Propan Gas (mbar)

2 3 4 5 6 7 8 9 10 11 12 13 14 15

IVEN B 60 TN

IVEN B60 TFS

Service info

fig. 30

A D C G H

F E B

3 USERS' INSTRUCTION

3.1 - CONTROL PANEL

A = Summer / Off / Winter / Anti-freeze

selector

B = Power light

C = Heating water temperature control

- Summer – Off – Winter – Boiler antifree-ze selector (A)

This selector is used to select the requi-red operating mode for the boiler.

With the selector in the Summer position,the boiler only produces D.H.W.

With the selector in the Off position, theboiler is switched off.

With the selector in the Winter position, theboiler provides for heating and D.H.W.

With the switch in the Anti-freeze position,the boiler is off but the anti-freeze safetyfunction is active. This protects the hea-ting circuit of the boiler and the storagetank when the water temperatur to thehydraulic circuits is lower than 15°C.

- Heating water temperature control (C)This knob is used to set the required tem-perature of the heating circuit. The tempe-

rature range is 35-85°C.- D.H.W. temperature control (D)

This knob is used to set the required stora-ge temperature for the D.H.W. in the boiler.The temperature range is 35-60°C.

- Pressure gauge (G)This device displays the pressure of thewater in the heating system, which mustbe at least 0.8-1 bar (cold).

- Thermometer (H)The thermometer displays the temperatureof the water in the heating system that hasbeen set on the regulator

- Release button (F)This button is used to restart the boiler af-ter intervention of the burner cut-off devi-ce.

D = Hot water temperature control

E = Cut-off light

F = Release button

G = Pressure gauge

H = Thermometer

- Cut-off light (E)This light indicates that the burner cut-offsafety device has come into operation.

- Power light (B)This light indicates that the boiler is powe-red on.

Service info3.2 - SWITCHING

- open the gas tap;- set the switch on the system upstream the

boiler to ON (power light B on);- Select the operating mode by turning the

selector A to the required position (sum-mer / winter / anti-freeze): the power lightB will come on. In the summer positionthe boiler will only produce D.H.W. In thewinter position it will also produce hot wa-ter for the heating system. In the anti-fre-eze position no hot water is produced andthe boiler is protected against freezing.

- set the temperature value required for theheating system using the heating watercontrol knob C;

- Turn the D.H.W. temperature control knobD to the required temperature setting. If thetemperature of the water in the boiler is lessthan the set value, the boiler will start upand heat it to that temperature.

The D.H.W. heating will function always

has precedence over the heating func-tion.The temperature setting range is 40-60°C.When the knob is in a central position, thewater is about 50°C.

Warning: when starting the boiler after a longperiod of inactivity, especially boilers powe-red by LPG, air bubbles may have formed inthe supply pipe.Before switching on the boiler switch onanother gas powered device (e.g. cooker gasring).Even so the boiler may block once or twice.Reset the boiler using the reset button F (seebelow)

Boiler cut off

If the boiler does not function correctly it au-tomatically cuts off: the cut off light E on thecontrol panel comes on. In this case:- check that the gas tap is open and that

there is a gas supply, for example by li-ghting a gas ring;

- if there is a gas supply wait for a minutebefore restarting the boiler using reset but-ton F; if the boiler does not restart, try toreset the boiler three times and then callan authorised Service Centre or qualifiedmaintenance personnel.

If the boiler cuts off frequently, this indicatesthat there is a recurring anomaly. In this casecontact qualified personnel or an authorisedService Centre for maintenance.

3.3 - MAINTENANCE

The boiler must be serviced once a year.Correct maintenance allows the boiler to workoptimally, respecting the environment andwithout endangering people, animals and pro-perty.The boiler must be serviced by qualified per-sonnel.The user may only clean the exterior coverof the boiler, using furniture cleaning pro-ducts.Do not use water!

Information for the user

The user can access only the parts of theboiler which can be reached without theneed for tools and/or implements: it is the-refore forbidden to disassemble the exte-rior cover of the boiler and tamper with theinterior parts.No-one, including qualified personnel, maymake modifications to the boiler.

UNICAL declines all responsibility for injuryto persons and animals and damage to pro-perty resulting from tampering or impro-per operations on the boiler.If the boiler remains inactive and disconnectedfrom the power supply for long periods it maybe necessary to reset the pump.This operation, which entails disassemblingthe outside cover and working on internal par-ts of the boiler, must be performed by quali-fied personnel.It is possible to prevent the pump fromblocking by adding special filming productssuitable for multi-metal systems to the water.If the boiler is not disconnected from the mainspower supply the pump will not block becau-

se the boiler’s electronic system has an anti-block programme. In this case the pump goesinto operation for a few seconds every day.The boiler is fitted with an anti-freeze systemsetting by selector A.

This device switches on automatically:

- for the heating system - when the tem-perature of the water in the boiler dropsbelow 7°C the circulating pump starts up.If the temperature drops below 5°C, theburner ignites and stays on for up to 15minutes or until the water temperature rea-ches 15°C.

- for the D.H.W. system - when the tempera-ture in the boiler is less than 6°C, the bur-ner ignites and stays on for up to 15 minu-tes or until the water temperature reaches15°C.

WARNINGThis system is not activated if the boiler isnot connected to the mains supply and thegas tap is closed.

IMPORTANTWhen the boiler anti-frost protection functionis active, both the central heating and D.H.W.functions are deactivated, which means theanti-frost protection of the ambient thermostatis also deactivated.The boiler protects the central heating systemindirectly. If the boiler is installed in a separa-te boiler room, the central heating system maybe at a lower temperature than the boiler andthere is the risk of frost, the boiler must beswitched to Winter mode as a safety measu-re. This protects both the boiler and the sy-stem from frost, but the boiler keeps the sto-rage tank at the set temperature. This system

protects the heating system against freezing,not the D.H.W. circuit.The heating system can also be effectivelyprotected against freezing using specific anti-freeze products suitable for multi-metal sy-stems.Do not use car engine anti-freeze productsand check the effectiveness of the productover time.

The boiler has a temperature and pressuregauge which allows you to check the tempe-rature and pressure of the water in the heatingsystem.When the boiler is switched off the pressureof the water must be around 1 bar.If this value drops then use the pressure con-trol tap to adjust to the correct value.

WARNINGAfter adjusting the pressure, close the tapwithout over-tightening it. If the tap is not clo-sed properly the pressure could rise, resultingin the safety valve opening and the water le-aking.

26

DATA BADGE

LEGEND:1 = CE Surveillance notify body2 = Boiler type3 = Boiler model4 = Number of stars (Directive 92/42/CEE)5 = (S.N°) Serial number6 = P.I.N. code7 = Approved fluing configurations8 = (N0x) N0x class

A = Central Heating circuit features9 = (Pn) Nominal output10 = (Pcond) Condensing nominal output11 = (Qmax) Nominal heat input12 = (Adjusted Qn) Adjusted for nominal Heat input13 = (PMS) Max. pressure C.H. system14 = (T max) Max. C.H. temperature

B = Domestic Hot Water circuit features15 = (Qnw) Nominal heat input in D.H.W. mode (if different from Qn)16 = (D) Specific D.H.W. flow rate according to EN 625 - EN 13203-1

17 = (R factor) N° taps based on the quantity of water declared EN13203-1

18 = (F factor) N°stars based on the quality of water declaredEN 13203-1

19 = (PMW) Max. pressure D.H.W. system20 = (T max) Max. temperature D.H.W system

C = Electrical features21 = Electrical power supply22 = Consumption23 = Protection grade

D = Countries of destination24 = Direct and indirect country of destination25 = Gas family26 = Supply pressure

E = Factory setting27 = Adjusted for gas type X28 = Space for national brands

CE Marking- The CE marking documents that the boilers satisfy:- The essential requirements of the Directive regarding gas appliances (Directive

2009/142/CEE) )

- The essential requirements of the Directive regarding electromagnetic compatibility(Directive2004/108/CEE)

- The essential requirements of the Efficiency Directive (Directive 92/42/CEE)- The essential requirements of the low voltage Directive (Directive 2006/95/CEE)

®1

2

3

5

7 8

6

4

9

11

13

10

12

14

15

17

19

16

18

20

28

A

B

21 22

23

24 25 26

27

C D

E

27

La Unical declina ogni responsabilità per le possibili inesattezze se dovute ad errori di trascrizione o di stampa. Si riserva altresì il diritto di apportareai propri prodotti quelle modifiche che riterrà necessarie o utili, senza pregiudicarne le caratteristiche essenziali.

AG S.P.A.

46033 casteldario - mantova - italia - tel. 0376/57001 (r.a.) - telefax 0376/660556