Hermann Eura Condensing Guida utente

IMPORTANT

THE FIRST IGNITION OF THE BOILER MUST BE EXECUTED BY AN

AUTHORIZED TECHNICIAN ACCORDING TO THE LAW 46/90.

Assigning all the operations for the first ignition to a Hermann Authorized Service

Center the particular and exclusive Hermann Conventional Warranty is activated.

For further information consult the coupon which you can find in the boiler’s

documents envelope.

Assigning all the operations for the first ignition to a Hermann Authorized Service Center the particular and exclusive Hermann Conven-

tional Warranty is activated. For further information consult the coupon which you can find in the boiler’s documents envelope.

INSTALLATION, USER

AND SERVICING INSTRUCTIONS

for

EURA

Condensing

WALL HUNG COMBINATION BOILER

DANGER: All warnings preceded by this symbol MUST be carefully respected so as

to avoid any accident of mechanical (e.g. wounds or contusions) or general origin.

DANGER: All warnings preceded by this symbol MUST be carefully respected so as

to avoid any accident of ELECTRICAL origin (fulguration).

DANGER: All warnings preceded by this symbol MUST be carefully respected so as

to avoid any accident of THERMIC origin (scalds).

Attention: All warnings preceded by this symbol MUST be carefully respected so as to avoid

any disfunctioning and/or damage to the appliance or other objects.

MANUFACTURER DECLARATION

Hermann boilers have obtained the CE certification (DM dtd. April 2nd 1998, Law 10/91, art. 32) and

meet minimum efficiency requirements, both at normal and 30% load, provided by DPR 412/93 (ac-

cording to Law 10/91, art.4,sub-section 4).They are in conformity with following Directives: Directive

on appliances burning gaseous fuels (90/396), Directive on electro-magnetic compatibility (CE 89/

336), Efficiency Directive (CE 92/42), Low Voltage Directive (CE 73/23), and relevant modifications.

Index

Warning .........................................4

The condensing boiler .......................... 5

Technical data...............................8

Installation ..................................12

Safety laws and rules referred to

technicians assigned to boilers

installation ..................................... 12

Reference norms and laws

for installation ................................ 12

Boiler location ..................................... 13

The syphon outlet too full ................... 13

Fixing the boiler .................................. 14

Boiler template ................................... 14

Hydraulic connections ........................ 15

System filling ...................................... 16

Gas connection .................................. 17

Electrical connections......................... 17

Connections to the chimney

EURA Condensing ........................ 19

Flue options

EURA Condensing ........................ 23

System with secondary zone.............. 25

First firing,

regulation and

servicing instructions ................26

First ignition operations ...................... 27

Maintenance operations ..................... 28

Gaining access to

manual regulation devices............. 29

Cleaning the combustion group .......... 30

Checking and combustion regulation . 32

Regulation programming .................... 34

Slow opening regulation ..................... 37

Max heating power

regulation ...................................... 37

Excluding automatic by-pass .............. 38

Draining EURA boiler ......................... 38

Other boiler programme ..................... 39

Crypt Warnings for Technical experts . 42

Servicing warnings ............................. 44

Boiler internal components ................. 45

Electrical diagram ............................... 46

User instructions ........................47

Warnings for boiler

commissioning .............................. 47

Useful tips .......................................... 47

Warnings ............................................ 48

Gaining access to control panel ......... 49

Switching on/off

and running boiler ......................... 49

Control panel details........................... 51

Boiler blocking and alarm codes......... 53

Boiler inactivity ................................... 57

Eventual problems.............................. 58

Warning while using ........................... 59

INDEX

sections for the usersections for the technician

for the technician and for the user

Introduction

WARNING

The instructions manual is an essential and complementary part of the product and it is

supplied together with the boiler.

Carefully read the manual, achieving all important information for a safe installation,

use and servicing.

— Carefully keep the manual for any further consultation you may need.

— The installation must be carried out by a qualified technician, in accordance with manu-

facturer instructions and with the relevant requirements of the current issue.

— A qualified technician is a person with a specific technical competence in the field of

the heating appliances for domestic use and domestic hot water production, as indi-

cated by the Law [ID of Your National rule, if any, regarding Technicians competence].

— Operation that User can perform are limited to those described in “USER INSTRUC-

TIONS” section.

— The manufacturer has no contractual and extra-contractual responsibility for any dam-

age arising from wrong installation, wrong use and non-observance of current laws and

instructions given by the manufacturer himself.

— Important: this gas boiler is used to heat the water at a temperature lower than the boiling

one, at atmospheric pressure; it must be connected to an heating system and/or to a domestic

hot water system, in accordance with its features and power.

— Packing items (cartons, nails, plastic bags and so on) must not be left within children

easy reach, as they are potentially dangerous.

— Before any cleaning or servicing operation, switch off the main electrical switch of the

heating system and/or any other suitable switch providing electrical disconnection of

the gas boiler.

— In case of fault and/or bad operation of the appliance, disconnect it immediately and do

not try to repair it by yourselves.

— Do not obstruct either momentarily or partially inlet/outlet terminals;

— Do not leave inflammable materials, neither liquid or solid (i.e. paper, rags, plastic, poly-

styrene) next to the boiler.

— Do not put any object on the boiler.

for the technician and for the user

Introduction

Boiler servicing and repair must be carried out exclusively by [HERMANN Authorized Servicing

Centres] [qualified technicians], which will use original spare parts. Strictly observe the above re-

quirement, avoiding any risk of compromising the appliance safety.

— If the appliance should be definitively disconnected, remove or cut off any potential dangerous

item.

— When selling the appliance or leaving it installed after a removal, make always sure that the

instructions manual is close to the boiler for the future use of new owners and/or installers.

— This appliance must be used for its clearly recommended utilization only. Any other utilization

must be considered dangerous and incorrect.

— It is strictly forbidden to use the appliance for different purposes than the specified ones.

— This appliance must be installed exclusively to wall.

The condensing boiler

We would like to introduce, directly to the end user but giving useful directions also to the Techni-

cian, the main features on the boilers which use the CONDENSING innovative technology: your

HERMANN EURA Condensing. In this booklet you will find also the instruction for the installation,

the conduction and the maintenance of the parts, which are stricly connected with the condens.

The combustion, which is the chemical reaction between the combustible (i.e. natural gas) and a

burning (air), which produces heat and creates carbon dioxide (CO2), water (water- steam) and

traces of carbon monoxide (CO), azote oxide (NOx) and incombustible.

As we know, to transform 1 Kg of water in vapour it is required about 0,7 KWh, keeping into

consideration that 1 m3 of natural gas produces about 1,6 Kg of water, and it is clear that you lose

1,12 KWh only to transform water in vapour without having the need.

The condensing boiler, despite the traditional boilers, make it possible to regain a part of this

energy condensing the water steam contained in the flues. So the regained energy will be as

bigger as the returned temperature from the heating system is lower, and it is for this reason that

the condensing boiler is perfect if it is combined with heating systems with radiant panels.

Therefore the technology of the condensing boilers, despite the traditional boilers, is now the

winner answer to the problematic of the environment respect and energy saving connected to

the domestic heating, because they are able to use the combustion gas with efficiencies much

higher ( that is, with a parity of produced heat, they have a lower gas consumption) and their

outlet flues contain (always with a parity of produced heat) a lower quantity of toxicant sub-

stances for the environment.

The condensing boilers are suitable to be applyed in the main cases with few system differences in

respect of the traditional boilers.

for the technician and for the user

Introduction

THE ADVANTAGES FOR THE ENVIROMENT

Despite of the traditional boilers, the condens-

ing boilers are able to regain and to use a

part of the outlet heat, as you can see on the

facilitated scheme.

The outlet flues which are normally expelled at

high temperature in the environment, in the con-

densing boilers are used in order to foreheat

before the water which enters the boiler, obvi-

ously without getting in touch with it. It follows

that you need less gas to have the desired heat-

ing temperature and that the flues will be colder

because they have given a part of their heat to

the water. This will lead to the limitation of the

pollution, which together with the “glass effect”

is responsible of the climatic changes which

threaten the world.

THE OUTLET CONDENSE

There are laws and rules (such us the UNI 11071

for Italy) which establish the correct solutions to

realise a simple expelling system. We leave to

the professionality of the installers the details in

order to project a system which completely cor-

respond to the rules and to the National and Lo-

cal Rules.

To install a condensing boiler it is necessary

to include an outlet duct for the condense,

acids resistant for the all length (in a suit-

able plastic material, Ø internal 13 mm minimum).

The connection point between the outlet con-

dense of the boiler and the condense duct has to be inspected, so an ideal solution is to connect it

to a funnel to be used also for the safety valve. This duct must reach the expelling system of the

domestic flowing backs (the sewage), with a minimum slope established by the laws and without

the stagnation points, without reductions, which could limit the flow or tracts where the freezing is

possible. However all the distance covered by the condense should be acids resistant.

The evacuation system of the condense must prevent combustion products leakage. There-

fore, condensing boilers must feature a device which perform this function (usually a syphon trap

which must be firstly filled with water). The EURA Condensing is equipped with a special device

which works dry also, limiting almost completely this risk, although the seal is guaranteed only

when it’s filled with liquid.

FLUEFLUE

FLUE

HEAT from

combustion

HEAT from

condensation

HEAT from

combustion

HEAT

available

TRADITIONAL

BOILER

CONDENSING

BOILER

HEAT

available

burner

condense

conden-

ser

GAS GAS

789_1_R00

for the technician and for the user

Introduction

To be much more synthetic in realizing the system, we have noticed that the condense (acid

condense), combined with the domestic flowing backs (basic liquids) tends to neutralize the pH

of the domestic evacuations, giving them a “better” impact on the environment or in any case

provoking a negligible effect because of the dilution. The normal domestic outlet is sufficient to

optimise this equilibrium without any chemical treatments are required (the detergent wa-

ters , which are wasted washing the dishes after a bath/shower etc.)

Only if the boiler is used where the production of flowing backs (basic liquids) is not sufficient

(i.e. office rooms with less then 10 persons), an installation of a condense neutralisator is

required (that is a device which neutralize the pH of the condenses, raising it up). These devices

need periodical maintenance to be executed following their producer’s instructions.

THE FLUE OUTLET

Also the flue outlet of the condensing boilers, is ruled by dedicated laws (i.e. the UNI 11071). Since

the acid condense tends to form itself also inside the flue components, these should be suitable to

reach the purpose. It is mandatory and necessary to use original flue components, espe-

cially designed for EURA Condensing and properly signed, to realize the outlet duct, be-

cause they are integral part of the same component. See“Chimney connections”for further

details about it.

Without being much more detailed, the outlet duct must have an upwards slope (relatively to the

direction of the flues) so as to take the condense towards the boiler (despite of the traditional

sealed combustion chamber boilers and forced draught boilers, the condensing boiler is projected

to work in “wet” conditions) and however must not have stagnation points and traces where it can

freeze. In case where the condense stagnation is unavoidable, this must be drained by the proper

mechanism to be connected to the expelling condense system produced by the boiler and which

prevents the flues passage. Like the normal sealed combustion chamber boilers, it is always

mandatory to use the upwards slope for the horizontal tracts of the aspiration duct, in case

of separated outlets (concerning the direction of the inlet air flow), so as to avoid water raining

inlet in the combustion chamber of the boiler.

Technical data

for the technician

TECHNICAL DATA

ATADLACINHCET .M.UgnisnednoCARUE

noitacifitrecEC °n2173OB4960

ssalC

epyT

38C36C35C34C33C31C

epytsaG 02G

)iH(tupnitaehxaM Wk0.62

)iH(tupnitaehniM Wk5.7

*C°08/°06)iH(.tuptuotaehxaM Wk0.52

*C°08/°06)iH(tuptuotaehniM Wk2.7

**C°05/°03)iH(.tuptuotaehxaM Wk6.72

**C°05/°03)iH(tuptuotaehniM Wk7.7

ssalC 5

ONdethgieW

hWk/gm6.54

tupnilanimontaOC mpp0.68

tupnidecudertaOC mpp0.21

tupnilanimonta %01.9

tupnidecuderta %09.8

)**C°05/°03ta(nQtaytitnauqesnednoC h/l00.3

)**C°05/°03ta(rQtaytitnauqesnednoC h/l46.0

ytidicaesnednoC Hp09.2

YCNEICIFFE

*C°08/°06taycneiciffelanimoN %3.89

*C°08/°06tadaol%03taycneiciffE %2.001

**C°05/°03taycneiciffelanimoN %7.601

**C°05/°03tadaol%03taycneiciffE %8.601

GNITAEH

)xam÷nim(tiucricgnitaehniaMniegnarnoitceleserutarepmeT

egnarerutarepmetwol/egnarlamron C°54÷02/08÷03

)xam÷nim(tiucricgnitaehyradnoceSniegnarnoitceleserutarepmeT C°08÷02

lessevnoisnapxE l8

erusserplessevnoisnapxE rab1

erusserpgnikrowxaM rab3

erutarepmetmetsysxaM C°58

erutarepmetffo/nonoitcnufezeerfitnA C°03/5

RETAWTOH

esirerutarepmetC°03taetarwolF nim/l0.21

wolfretawniM nim/l6.2

erusserpylppusxaM rab6

)hctiwsytiroirpehtfonoitavitcaehtrof(erusserpylppusniM rab4.0

)xam÷nim(egnarnoitceleserutarepmeT C°55÷03

)retawtoh/gnitaeh(yticapacknatiniM l9.0/2.3

erutarepmetffo/nonoitcnufezeerfitnA C°05/5

ATADLACIRTCELE

ycneuqerf/egatloV zH/V05/032

noitpmusnocrewoP W591

noitcetorpfoleveL D4XPI

SNOISNEMID

htpeD-thgieH-htdiW mm margaid"SNOISNEMID"otrefeR

)egakcapfothgiew(retawtuohtiwreliobfothgieW gk)4(05

)teltuO=S(SNOITCENNOC

nruter/wolfgnitaeH cnI"¾

teltuo/telniretaWcitsemoD cnI"½

reliobehtotnoitcennocsaG cnI"¾

tiknoitcennocdradnatsfokcocsagehtotnoitcennocsaG cnI"½

Øtelniria/teltuostcudorpeulflaixaoC mm06/001

xam÷nim)latnoziroh(htgneleulflaixaoC m01÷1

xam÷nim)lacitrev(htgneleulflaixaoC m11÷1

Øtelniria/teltuostcudorpeulfetarapeS mm06

xam÷nim)latnoziroh(htgneleulfmm06ØetarapeS m)9=Sxam(81÷2

xam÷nim)lacitrev(htgneleulfmm06ØetarapeS m)01=Sxam(02÷2

ERUSSERPYLPPUSSAG

epytsaG 02G

erusserplanimoN rabm02

retemaidrotcejnI mm9.5

NOITPMUSNOCSAG

xamQ h/cm57.2

nimQ h/cm97.0

* = with a temperature of the reflowing water that DOES NOT allow condensing;

** = with a temperature of the reflowing water that allows condensing

Dati tecnici

Technical data

for the technician

DIMENSIONS

241 209

274

189

326 124

450 377

833

209

241 189

1teltuostcudorpeulF

2metsyslaixaocroftelniriA

3metsysetarapesroftelniriA

Technical data

for the technician

AVAILABLE PUMP CAPACITY

EURA CONDENSING

pump speed selector on position I, II and III (automatic by-pass)

Pressure m. H2O

0,5

1,5

2,5

3,5

4,5

5,5

6,5

7,5

0 200 400 1000 1200600 800 1400 1600

790

R00

Water flow l/h

excluded by-pass

automatic by-pass

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