COSMOGAS AGUADENS Installation, Operating And Maintenance Manual

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62403581 - R00 07-01-2014_GB/IE

INSTALLATION, OPERATING AND MAINTENANCE MANUAL

AGUADENS

WALL-MOUNTED GAS CONDENSING WATER HEATERS

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AGUADENS

COSMOGAS

INDEX

1 - GENERAL SAFETY RECOMMENDATIONS ..................................................................................................4

1.1 - National laws and regulations .................................................................................................................................. 5

2 - GENERAL INFORMATION .............................................................................................................................6

2.1 - Presentation ............................................................................................................................................................. 6

2.2 - Model overview ........................................................................................................................................................ 6

2.3 - Manufacturer ............................................................................................................................................................ 7

2.4 - Symbols key ............................................................................................................................................................. 7

2.5 - Maintenance ............................................................................................................................................................. 7

2.6 - Warranty ................................................................................................................................................................... 7

3 - MAIN COMPONENTS .....................................................................................................................................8

4 - OPERATION .................................................................................................................................................10

4.1 - Operation and intended use of the appliance .........................................................................................................11

4.2 - D.H.W. circulation pump performance curves .........................................................................................................11

4.3 - Examples of installation ......................................................................................................................................... 12

5 - INSTALLATION .............................................................................................................................................14

5.1 - Opening the packaging .......................................................................................................................................... 14

5.2 - Dimensions and minimum safety clearances ......................................................................................................... 14

5.3 - Choosing suitable installation location ................................................................................................................... 14

5.4 - Mounting the appliance .......................................................................................................................................... 14

5.5 - Domestic hot and cold water .................................................................................................................................. 14

5.6 - Gas ......................................................................................................................................................................... 15

5.7 - Condensate drain ................................................................................................................................................... 16

5.8 - Safety valve ............................................................................................................................................................ 16

5.9 - Hydraulic and gas connections .............................................................................................................................. 17

5.10 - Water softener (on request) ................................................................................................................................. 17

5.11 - Electrical connections ........................................................................................................................................... 18

5.11.1 - Power supply cable connection ............................................................................................................... 19

5.12 - D.H.W. buffer tank hydraulic layout ...................................................................................................................... 19

5.12.1 - Anti- legionella precaution ....................................................................................................................... 19

5.12.2 - External secondary return conguration ................................................................................................. 19

5.13 - Flue systems ........................................................................................................................................................ 20

5.13.1 - Exhaust ue with indipendent combustion air grille type B23 ................................................................. 21

5.13.2 - “Split 80/80PP” System (polypropylene) (Type C43; C53; C83) AGUADENS 16-22-27 ......................... 22

5.13.3 - “Split 80/80PP” System (polypropylene) (Type C43; C53; C83) AGUADENS 37 ................................... 23

5.13.4 - “Split 80/80PP” System (Type C43; C53; C83): accessories available ................................................... 24

5.13.5 - “Split 80/80PP” System (Type C43; C53; C83): installation examples ................................................... 25

5.13.6 - “60/100PP vertical coaxial” System (polypropylene) (C13; C33 Type) ................................................... 26

5.13.7 - “60/100PP horizontal coaxial” System (polypropylene) (C13; C33 Type) ............................................... 27

5.13.8 - “60/100PP Coaxial” System: accessories available ................................................................................ 28

5.13.9 - “60/100PP Coaxial” System: installation examples ................................................................................ 29

5.13.10 - “80/125PP vertical coaxial” System (polypropylene) (C13; C33) .......................................................... 30

5.13.11 - “80/125PP Coaxial” System: accessories available .............................................................................. 31

5.13.12 - “80/125PP Coaxial” System: installation examples .............................................................................. 32

6 - OPERATING .................................................................................................................................................33

6.1 - Operating ............................................................................................................................................................... 33

6.1.1 - User instructions ....................................................................................................................................... 33

6.1.2 - Filling the condensate drain siphon .......................................................................................................... 33

6.2 - General recommendations regarding the supply of gas ........................................................................................ 33

6.3 - Type of gas for which the appliance is regulated. .................................................................................................. 33

6.4 - Conversion of the appliance from one type of gas to another ................................................................................ 34

6.5 - Ignition .................................................................................................................................................................... 36

6.6 - Measurement and adjustment of gas pressure adjustment ................................................................................... 37

6.7 - Measurement of combustion air pressure .............................................................................................................. 38

6.8 - Measurement and adjustment of CO2 levels ......................................................................................................... 39

6.9 - Adjusting the domestic hot water ow rate ............................................................................................................. 40

7 - USE ...............................................................................................................................................................41

7.1 - Valve positions ....................................................................................................................................................... 41

7.2 - Display ................................................................................................................................................................... 41

7.3 - Ignition procedure .................................................................................................................................................. 41

7.4 - “User menu” ........................................................................................................................................................... 42

7.5 - Adjustment of domestic hot water temperature ...................................................................................................... 42

7.6 - Pump control features ............................................................................................................................................ 42

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COSMOGAS

INDEX

7.7 - Pumps anti-block .................................................................................................................................................... 42

7.8 - Display Energy Saving mode ................................................................................................................................. 42

7.9 - “User menu” Parameters ........................................................................................................................................ 43

7.10 - “Installer menu” & parameters .............................................................................................................................. 44

7.11 - Diagnostics ........................................................................................................................................................... 46

7.11.1 - Diagnostics “Loc” block fault codes and potential solution ...................................................................... 47

7.11.2 - Diagnostics “E” error fault codes and potential solutions ........................................................................ 49

7.11.3 - Diagnostics “AttE” alarm fault codes and potential solutions .................................................................. 50

8 - MAINTENANCE ............................................................................................................................................51

8.1 - General recommendations ..................................................................................................................................... 51

8.2 - Casing removal ...................................................................................................................................................... 52

8.3 - Burner and fan removal .......................................................................................................................................... 53

8.4 - Gas burner and heat exchanger outer surface cleaning procedure ....................................................................... 53

8.5 - Condensate siphon cleaning procedure ................................................................................................................. 54

8.6 - Ignition and ame isonising electrode position ....................................................................................................... 55

8.7 - Circulation pump replacement procedure .............................................................................................................. 55

8.8 - Domestic water ow meter replacement procedure ............................................................................................... 56

8.9 - Safety valve replacement procedure ...................................................................................................................... 56

8.10 - Procedure for draining the water heater ............................................................................................................... 57

8.11 - Fan test mode procedure ..................................................................................................................................... 57

8.12 - Gas burner minimum and maximum performance test mode procedure ............................................................. 57

8.13 - Checking the ionisation current ............................................................................................................................ 57

8.14 - Water temperature measurement sensor testing procedures .............................................................................. 57

8.15 - AGUADENS models 16, 22 and 27 electrical connections .................................................................................. 58

8.16 - AGUADENS models 16, 22 and 27 internal multi-core wiring diagram ................................................................ 60

8.17 - AGUADENS model 37 electrical connections ...................................................................................................... 62

8.18 - AGUADENS model 37 multi-core wiring diagram ................................................................................................ 64

9 - TECHNICAL DATA ........................................................................................................................................66

10 - COMMAND MENU DIAGRAM ....................................................................................................................68

11 - ENGINEERS TEST MODE..........................................................................................................................69

12 - CE DECLARATION OF CONFORMITY ......................................................................................................70

13 - WARRANTY ................................................................................................................................................71

13.1 - General warranty conditions ................................................................................................................................ 71

13.2 - Instructions for lling-in the warranty card ............................................................................................................ 71

13.3 - Warranty limitations .............................................................................................................................................. 71

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If you smell gas

1. - Close the gas cock.

2. - Ventilate the room.

3. - Do not switch on any electric device, telephone included.

4. - From another room, call a professionally qualified technician immediately or the gas supply company. Call the Fire Service if the former are not available.

If you can smell combustion products

1. - Switch the appliance off.

2. - Ventilate the room.

3. - Call a professionally qualied technician.

Explosive or highly ammable products

Do not store or use explosive or highly ammable materials

such as paper, solvents, paints, etc...in the same room where the appliance is installed.

Installation, modications

The gas appliance must be installed, calibrated or modied

by professionally qualied staff, in compliance with National

and local Standards, as wells as the instructions in this manual.

Incorrect installation or poor maintenance can cause

injury/damage to persons, animals or objects, for which the manufacturer cannot be deemed liable.

The appliance must be connected to an approved ue

system. Failure to comply with this regulation can lead to serious risks for people and animals

A domestic hot water temperature level exceeding 51°C

can cause permanent injury/damage to people, animals and objects. Special care should be taken to protect children, the elderly and those with special needs using non-accessible

blending valves to limit the ow hot water temperature at

outlets.

The water heater ue system must not be modied by

unqualied person.

The ue system terminals should not be obstructed in any

way.

Do not leave parts of the packaging and any replaced parts

within the reach of children.

Seal the adjustment devices after every calibration. In agreement with the provisions for use, the user must

keep the installation in good working order and guarantee reliable and safe operation of the appliance.

We also highlight the importance of an annual scheduled

maintenance contract with a professionally qualified technician.

The end user must have maintenance performed on the

appliance only by professionally qualied technicians in

accordance with this manual and in full compliance with both local and national standards.

Before performing any cleaning or maintenance, disconnect

the appliance from the mains power supply.

After having performed any cleaning or maintenance works,

make sure that all internal etc.

This appliance is not intended for use by persons (including

children) with reduced physical and sensory conditions or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

This manual is an integral and essential part of the product

and must be kept carefully by the user, for possible future consultation. If the appliance must be transferred or if you should move and leave the unit to another user, always ensure that this manual remains with the new user and/ or installer.

Any accessories or kits which might be added must be

original Cosmogas products.

This appliance must be intended only for the use for which

it has been expressly declared: production of domestic hot water for civilian use.

 Any contractual and extra contractual liability of the

manufacturer is excluded for damage caused by installation errors or errors in use and however due to failure to comply with the instructions given by the manufacturer or by failure to comply with applicable national and/or local laws.

For safety reasons and respect for the environment, the

packaging elements must be disposed of in the relevant separate waste collection centres.

In case of breakdown

In the case of appliance breakdown and/or malfunctioning, deactivate it and do not attempt any repairs. Contact a

professionally qualied technician only. If components must

be replaced for repair to be successful, only use original spare parts. Failure to comply with the above can jeopardise the safety of the appliance.

Professionally qualied technician.

Professionally qualied technicians with certied training

covering gas boilers and/or gas water heaters as envisioned by the law.

Technical drawings

All drawings in this manual relating to electrical wiring, hydraulic and gas layouts are purely indicative. The external services such as electrical cable types and sizes, water services pipes and gas services must always be checked

by a professionally qualied technician or engineer to verify

compliance with all relevant standards, Laws and codes of good practice.

Carbon Monoxide. Every year deaths and serious injuries occur due to carbon monoxide poisoning. This tragedies are avoidable if certain preventative measures such as the following are undertaken:

Ensure that all boilers, water heaters, room heaters, stoves

and hobs which burn oil, natural gas, LP gas, coal, peat, wood and wood pallets are serviced regularly. Servicing is needed at least once per year to ensure safety. the

service person should be qualied and trained to service the specic types of appliance

If an appliance is fitted in a dwelling, then a carbon

monoxide detector should always be tted. There are two types avaiable: a simple detector works like a re alarm to emit a loud noise and ashing light if carbon monoxide is

detected or a more sophisticated version which will also switch off the appliance to provide more safety.

1 - GENERAL SAFETY RECOMMENDATIONS

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1 - GENERAL SAFETY RECOMMENDATIONS

1.1 - National laws and regulations

- M.D. n°37 dated 22/01/2008 (former Law n°46 dated 05/03/90)

- Law n°10 dated 09/01/91

- Presidential Decree n°412 dated 26/08/93

- Presidential Decree n°551 dated 21/12/99

- Legislative Decree n° 192 dated 19/08/05

- Legislative Decree n° 311 dated 29.12.06

- UNI 7129 Standard

- UNI 7131 Standard

- UNI 11071 Standard

- IEC 64-8 Standard

All the gas appliances must be installed by a competent

and qualied person, in accordance with relevant clauses of

applicable standards and raccomandations. These include but may not be limited to the following:

- I.S. 813 Domestic gas installations.

- I.S. 820 Non-Domestic gas installations.

- IEE Wiring Regulations.

- BS 5546:2010 - Specication for installation and maintenance

of gas-fired water-heating appliances of rated input not exceeding 70 kW net.

- BS 5440-2:2009 - Flueing and ventilation for gas appliances

of rated input not exceeding 70 kW net (1st, 2nd and 3rd family

gases) specication for the installation and maintenance of

ventilation provision for gas appliances.

- BS 6644:2011 - Specification for the installation and

maintenance of gas-red hot water boilers of rated inputs

between 70 kW (net) and 1.8 MW (net) (2nd and 3rd family gases).

- BS 6891:2005+A2:2008 - Installation of low pressure gas

pipework of up to 35 mm (R1 1/4) in domestic premises (2nd

family gas) specication.

- BS 5482-1:2005 - Code of practice for domestic butane and

propane gas burning installations. Installations at permanent dwellings, residential park homes and commercial premises, with installation pipework sizes not exceeding DN 25 for steel and DN 28 for corrugate stianless steel or copper.

- BS 5482-2:AMD 12046: June 2001 - Domestic butane and

propane gas burning installations. Installations in caravans and non-permanent dwellings.

- BS 5482-3:2005 - Domestic butane and propane gas burning

installations. Installations in boats yachts and other vessels.

- Building regulations issued by Department of the Environment

and Building Standards Regulations.

- Gas safety (Installation and Use) Regulations current issue.

- BS 6700 - Design, installation, testing and maintenance of

services supplying water for domestic use within buildings

and their cartilages - Specication.

- UK Health and safety at work Act.

- All relevant Building Regulations.

- Local Water Bye Laws.

- Water Regulations.

- Health & Safety legislation.

Failure to install this appliance correctly could lead to prosecution. It is your own interest and that of safety to ensure that the law is complied with. Manufacturer’s instructions must not be interpreted as over-riding statutory obligations under any circumstances.

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2.1 - Presentation

Congratulations! You have purchased one of the best products on the market. Each individual part is proudly designed, produced, tested and assembled within the COSMOGAS establishment, thus guaranteeing the best quality control. This product has been developed thanks to the COSMOGAS who pay the highest

respect to the environment with class 5 classication

as being the last polluting as envisioned by EN297 (and EN 483) Technical Standards. COSMOGAS place great importance to the end-of-life cycle for their appliances with all of components being easily separated for recycling.

2.2 - Model overview

AGUADENS XX

16 = Water heater with maximum heat input of 25.5 kW 22 = Water heater with maximum heat input of 34.8 kW 27 = Water heater with maximum heat input of 43.0 kW 37 = Water heater with maximum heat input of 60.0 kW

Condensing, indoor, pre-mixed, ecological gas water heater.

2 - GENERAL INFORMATION

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AGUADENS

COSMOGAS

2.3 - Manufacturer

COSMOGAS srl Via L. da Vinci 16 47014 - Meldola (FC) Italia Tel. 0543 498383 Fax. 0543 498393 www.cosmogas.com info@cosmogas.com

2.4 - Symbols key

ATTENTION !!!

El ectric s hock haza rd. Failure to comply with these recommendations can jeopardise the good working order of the appliance or cause serious damage to persons, animals or objects.

ATTENTION !!!

General hazard. Failure to comply with these recommendations can jeopardise the good working order of the appliance or cause serious damage to persons, animals or objects.

 Important indication symbol.

2.5 - Maintenance

It is recommended to perform regular yearly maintenance of the appliance for the following reasons:

- to maintain a high yield and manage the domestic hot water plant economically (with low fuel consumption);

- to achieve a high level of safety;

- to maintain the level of environmental compatibility of the combustion high;

Offer your customer a scheduled maintenance contract.

2.6 - Warranty

see chapter 13.

2 - GENERAL INFORMATION

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1 - Command and control board 2 - Electric connections board 3 - Electric control board box 4 - Lower cover

5 - Recirculation tting cap 6 - Water ow rate measuring device

7 - Cold water inlet temperature sensor (1007) 8 - Fan 9 - Non-return valve 10 - Air/gas manifold

11 - Double D.H.W. output sensor (1001 and 1005)

12 - Cold water inlet tting 13 - D.H.W. outlet tting

14 - Recirculation Pump 15 - Detection electrode

16 - Wall xing brackets

17 - Secondary return manual control valve

18 - Conveying tting 19 - Combustion air and exhaust ue connection

20 - Combustion analysis points 21 - Double exhaust ue temperature sensor (1006 and

1014)

22 - Spark generator 23 - Ignition cables 24 - Combustion gases non-return valve. 25 - Air inlet manifold 26 - Gas valve 27 - Front casing 28 - Safety valve 29 - Display 30 - Control board 31 - Gas valve adjustment service access hatch

3 - MAIN COMPONENTS

Figure 3.1 - Water heater internal components

020003.01.042

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AGUADENS

COSMOGAS

32 - Pump air vent

33 - Front casing xing tabs

34 - Left ignition electrode 35 - Right ignition electrode 36 - Gas burner viewing port 37 - Flue condensate collection collar drain pipe (connected to siphon) 38 - Burner 39 - Air/gas mixing unit 40 - Condensate drain siphon 41 - Safety valve drain pipe 42 - Non-return valve 43 - Condensate collection tank

44 - Domestic hot water temperature sensor (1002)

3 - MAIN COMPONENTS

Figure 3.1 - Water heater internal components

020003.01.043

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Key to gure 4.1:

1 = Water heater 2 = Combustion air intake spigot

3 = Exhaust ue spigot 4 = Exhaust ue temperature sensor 1 (Par. 1006) 5 = Exhaust ue temperature safety sensor 2 (Par. 1014)

6 = Sealed chamber 7 = Water collection tub

8 = D.H.W. outlet temperature sensor 1 (Par. 1001) 9 = D.H.W. outlet temperature safety sensor 2 (Par. 1005)

10 = Burner 11 = Titanium plated stainless steel VRC type heat exchanger 12 = Fan

13 = Cold water inlet temperature sensor (Par. 1007) 14 = Condensate collection siphon with sediment decanter 15 = Air/gas mixer 16 = Pneumatic gas valve 17 = Safety valve 18 = Secondary return manual control valve 19 = Recirculation pump 20 = Non-return valve

21 = Water ow rate measuring device

22 = Secondary return connection 23 = Secondary return blanked connection

24 = Domestic hot water sensor (Par. 1002) 25 = Gas isolation valve 26 = Gas inlet 27 = Domestic cold water inlet 28 = Safety valve condensate drain collector 29 = Domestic hot water outlet

4 - OPERATION

Figure 4.1 - Hydraulic layout

AGUADENS

Figure 4.2 - Secondary return manual control valve

020003.01.044

OPEN Secondary return not present

CLOSE Secondary return present

020003.01.045

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4.1 - Operation and intended use of the appliance

This product is a condensing gas appliance, intended for the production of domestic hot water for use by people. Consider the D.H.W. circulation pump performance curves

as detailed in paragraph 4.2 and as illustrated in gure 4.3.

The temperature of the domestic hot water can be adjusted by following the relevant procedure in chapter 7.5.

This appliance must be connected to a domestic hot

water distribution system which has adequately sized pipes to convey the correct water volume and all pipes

should be tted with good quality insulation to optimise

the performance of the water heater.

Before installation of the domestic cold and hot water

services should be ushed thoroughly in order to remove

any residues or impurities which could compromise the good working order of the appliance.

4 - OPERATION

Figure 4.3 - Curve of the domestic water circuit losses

Head losses (bar)

Water ow rate (l/min)

This appliance is not suitable for installation outdoors.

It must not be exposed to temperature below zero or temperature above 50°C. Select a suitable sheltered location for the appliance.

This appliance must be installed in a location which will

not cause damage to objects or property in the event of water leaking from within the appliance or connections at the appliance.

Check gure 5.1 concerning the minimum safety

distances for installation and future maintenance.

4.2 - D.H.W. circulation pump

performance curves

The pump curves as shown in gure 4.3 outline the

performances which can be archived. It is the designer’s responsability to ensure that the available pump head pressure will achieve the desired results.

Key to gure 4.3

I = Aguadens 16 II = Aguadens 22 and Aguadens 27 III = Aguadens 37

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Figure 4.4 - Example of installation basic

Figure 4.6 - Example of installation with storage tank

4.3 - Examples of installation

In gures 4.4, 4.5, 4.6, 4.7, 4.8 and 4.9 you can see some

examples of installation.

Figure 4.5 - Example of installation with recircolation and external pump

Figure 4.7 - Example of installation with storage tank with supply direct to the water heater

4 - OPERATION

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4 - OPERATION

Figure 4.8 - Example of installation with solar panel and storage tank

Figure 4.9 - Example of installation with solar panel

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5.1 - Opening the packaging

The appliance is supplied in cardboard packaging. Open

following the instructions given on the aps of the packaging

itself.

5.2 - Dimensions and minimum

safety clearances

It is necessary to leave free spaces around the appliance as

illustrated in gure 5.1 both for installation and maintenance.

5.3 - Choosing suitable

installation location

ATTENTION !!! The appliance must be installed

exclusively on a solid, vertical wall, which can support the weight.

The appliance must be installed in a suitable room taking into account the following factors:

- connection of the exhaust/air intake pipes;

- connection of the gas supply pipe;

- connection to the cold water supply;

- connection of the domestic hot water supply;

- electrical connection;

- connection of the siphon and safety valve to a suitable

drain;

5.4 - Mounting the appliance

Refer to gure 5.3:

1.- place the paper template, provided with the appliance, against the wall;

2.- check that the template is square;

3.- mark the holes for the plugs and hydraulic ttings on the

wall;

4.- remove the paper template;

5.- make the holes “A” and introduce the wall plugs “B”;

6.- hang the appliance on the plugs “C”

7.- make the appliance hydraulic and gas connections;

8.- make the hydraulic ttings.

5.5 - Domestic hot and cold water

ATTENTION !!! If water hardness exceeds 25°F (250 mg/l) a polyphosphates water softener must be installed on the incoming cold water supply (see paragraph 5.10).

ATTENTION !!! Install a lter with mesh no wider than 0.5 mm² in the domestic cold water inlet.

ATTENTION !!! The domestic hot water

piping materials and ttings must be capable of

withstanding temperatures of a least 95°C and 10 bar pressure. These circuits must be protected with suitable expansion together with both temperature and pressure relief safety devices in accordance with all relevant safety standards.

In gure 5.2 the service and maintenance valves are not shown. Hydraulic and gas connections should be tted with

isolation valves to accomadate service and maintenance works.

1 - 3/4” recirculation 2 - 3/4” D.H.W. outlet 3 - 3/4” gas inlet 4 - 3/4” cold water inlet 5 - Fumes exhaust/Air intake 6 - Support attachments 7 - Ø20 condensate drain

A = 305 mm (MODELS 16-22-27) - 484 mm (MODEL 37) B = 120 mm (MODELS 16-22-27) - 175 mm (MODEL 37) C = 125 mm (MODELS 16-22-27) - 304 mm (MODEL 37)

5 - INSTALLATION

Figure 5.1 - Minimum safety distances

Figure 5.2 - Dimensions and attachments centre to centre distances

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5 - INSTALLATION

5.6 - Gas

ATTENTION !!! It is prohibited to operate the appliance with the incorrect gas type. Ceck the data label on the appliance for Natural gas (G20) or Propane gas (G31) to ensure that the correct appliance in being installed.

ATTENTION !!! Check that the gas and supply pressure are those for which the appliance has been adjusted.

Two situations are possible: A - the gas and supply pressure correspond to the

adjustment of the appliance. In this case, it can be connected;

B - the gas and supply pressure do not correspond to the

adjustment of the appliance. In this case, the appliance must be converted to the type of gas and supply pressure corresponding to those of the supply available.

The appliance is provided with the relevant gas conversion kit.

Before the gas pipes are purged it is essential to ensure

that the internal surfaces are clean and free of metal or

plastic lings or any other solid pieces or liquids;

An isolation valve must be installed on the gas supply

pipe adjacent to the appliance;

ATTENTION !!! Before supplying gas to the

appliance, it is essential that the gas pipes have been pressure tested in accordance with the most recent applicable gas standards.

to prevent damage to the appliance gas valve, the

supply pressure should not exceed 50 mbar under any circumstances;

if the gas pipe-work must be tested in excess of 50

mbar, ensure that the appliance is fully isolated.

Figure 5.2 shows the position and the diameter of the gas connection on the appliance. Ensure that the gas service pipe-

work is adequately sized to provide the maximum volume ow

rate at the required minimum pressure.

Figure 5.3 - Appliance wall xing detail

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Figure 5.4 - Safety valve drain and condensate drain connection

020002.01.005

020002.01.006

5 - INSTALLATION

5.7 - Condensate drain

There is a siphon inside the appliance for the evacuation

of condensate (see gure 3.1 detail “40”) and to prevent

combustion products from escaping, whose end

corresponds to the pipe “B” in gure 5.4. This termination must be conveyed into an anti-odour siphon (gure

5.8 detail “G”) to prevent bad odours returning into the environment (the anti-odour siphon “G” is supplied on request). The tank “A” is mounted in the factory as indicated

in gure 5.4, the exhaust pipe “F” is mounted in the factory as indicated in gure 5.5. In particular, the condensate

discharge must comply with the following:

for room used for residential purposes and for ofce with

more than 10 users, it can be connected to the domestic waste disposal plant by means of appropriate siphon with disjunction capable of preventing the pressurisation of the system (siphon prepared within appliance) and to prevent the return of bad odours from the sewer (detail

“G” in gure 5.8). If the room used for ofce purposes

has less than 10 users, before connection with the domestic waste drain, a condensate neutraliser is good practice (see chapter 9 for the value of acidity of the condensate and the quantities).

be connected to a plastic (not copper) drain pipe with a

minimum internal pipe diameter equal to or greater than 13 mm;

be installed in a way to prevent the liquid from freezing;

therefore pay attention to any external passings. It is prohibited to drain into gutters or drainpipes;

to slope continuously towards the drain point, avoid high

points, which could pressurise the pipe;

5.8 - Safety valve

The appliance is protected against overpressures by a

safety valve calibrated to 10 bar (see gure 3.1 detail “28”). The safety valve drain (detail “C” in gure

5.4), along with the condensate drain (detail “B” in gure

5.4) must be conveyed to a pipe “F” (see gure 5.5) with

minimum internal diameter of 13 mm. The pipe “F” must be

then taken to the anti-odour siphon (detail “G” gure 5.8).

This drain with siphon is used to prevent overpressures if the valve is opened and makes it possible for the user to

check the eventual intervention. The pipe “F” in gure 5.5 is supplied by standard along with the tank “A” in gure

5.4. The anti-odour siphon “G” in gure 5.8 is provided on

request.

ATTENTION !!! If not connected to the drain,

whenever the safety valve should intervene, it could cause damage to persons, animals or objects.

Figure 5.5 - Condensate drain pipe

020002.01.017

Page 17

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COSMOGAS

Figure 5.6 - Water and gas connections

5 - INSTALLATION

020003.01.004

Figure 5.8 - Siphon funnel (on request)

020002.01.028

min10 mm max 30 mm

5.9 - Hydraulic and gas connections

The appliance is supplied as per standard with the ttings illustrated in gure 5.6, where:

A = Ø 18 recirculation

B = domestic hot water Ø 18

C = 3/4” gas isolation valve (EN 331 type-approved)

D = 1/2“ domestic cold water isolation valve

E = gas Ø 18

F = domestic cold water Ø 18

Once the hydraulic and gas connections have been made, proceed with assembly of the lower cover “G” as indicated

in gure 5.6.

5.10 - Water softener (on request)

If the appliance is installed in a geographical area where domestic water has hardness exceeding 25°F (250 mg/l), a polyphosphates softener must be installed on the cold water

supply (see gure 5.7 detail “B”), in order to safeguard the

appliance from any lime scale deposits.

Proceed as follows for installation (refer to gure 5.7):

1.- connect the softener “B” to the isolation valve “A”;

2.- mount the isolation valve “A” to the appliance tting;

3.- proceed with the installation of the cold water inlet pipe

into the tting behind the softener “B”;

4.- before re-mounting the lower cover, it is necessary

to cut out the plastic section between “C” and “D” to accomodate the softener “B”.

ATTENTION !!! Please note that if the water

hardness levels are likely to be extremely high, it would be essential to consult with a water softening specialist who may recommend a more sophisticated system. In this regard, we would recommend that the incoming water supply should be tested in advance of any decision to purchase the appliance.

Figure 5.7 - Polyphosphates softener (on request)

020003.01.008

Page 18

AGUADENS

COSMOGAS

5.11 - Electrical connections

ATTENTION !!! The appliance is only electrically

safe when it has been correctly connected to an

efcient earth circuit, performed as envisioned by the

current Safety Standards.

This fundamental safety requirement must be met. If in doubt, request a thorough control of the electric plant by a

professionally qualied technician.

Have a professionally qualied technician check that the

electric plant is suitable for the electric power required by the appliance, indicated on the plate.

The appliance must be connected to the mains electricity

using a cable coupler. The use of adapters, multiple sockets, extensions, etc. is not allowed.

The appliance must be connected to the mains electricity

using a three-polar electric cable, with double isolation, minimum section of 1.5 mm² and resistant to a minimum temperature of 70°C (characteristic T).

For connection to mains electricity, a bi-polar switch

must be envisioned in the vicinity of the appliance with a contacts opening distance of at least 3mm, as envisioned by the current regulations on the subject.

Respect the polarity between the neutral phase during

connection of the appliance.

Make sure that the water plant pipes are not used as

earth points for the electric or telephone plant. This piping is not suitable for this purpose, moreover, serious corrosion damage would occur in a very short time, on the appliance, piping and radiators.

ATTENTION !!! the appliance is not protected against the effects caused by lightening.

020003.01.009

5 - INSTALLATION

Figure 5.9 - Electric connections

Key for gure 5.9

A = Commands board box; B = Electric connections board lid;

C = Connections lid closing aps;

D = Electric connections board;

Key for electric contacts

PM = Not used CH = Not used BUS = Not used TA = Not used 0-10 = Not used SE = Not used SB = Storage tank sensor (if present) MF = Multi-function output PE = Boiler pump (if present) DN = Not used (2 = Neutral; 3 = Line) L1 = Appliance power supply line N = Appliance power supply neutral EARTH SYMBOL = Earth contacts

020002.01.010

Page 19

AGUADENS

COSMOGAS

5.11.1 - Power supply cable connection

Proceed as follows to connect the power supply cable (refer

to gure 5.9):

1.- use a three-polar cable with double isolation, with minimum section of 1.5 mm²

2.- remove the casing from the appliance following the relevant instructions in paragraph 8.2;

3.- rotate the panel “A” towards the front of the appliance;

4.- operate on the aps “C” and open the lid “B” as

indicated by the arrow;

5.- lay the power supply cable through the fairlead in proximity of the contacts “L1”, “N” and earth symbol;

6.- strip the cable, making sure to keep the earth cable (yellow green) 20 mm longer than the other two;

7.- connect the yellow-green cable to the earth terminals (see symbol)

8.- connect the brown cable (Phase) to the terminals L1

9.- connect the blue cable (Neutral) to the terminals N

5.12 - D.H.W. buffer tank

hydraulic layout

The hydraulic connection must be made as in gure 5.10.

Proceed as follows for the electric connection (refer to the

gure 5.9):

1.- disconnect the electric power supply from the appliance;

2.- disconnect and remove the temperature sensor (detail

“44” in gure 3.1) from the domestic hot water outlet pipe;

3.- lay a bi-polar electric cable with minimum section of 1.5 mm², which goes from the appliance to the storage tank temperature sensor and connect it to the appliance at terminalss “8” and “9” (SB);

5 - INSTALLATION

Figure 5.10 - water connection to the storage tank

KEY 1 AGUADENS water heater 2 Recirculation (if activated) * 3 Domestic hot water outlet 4 Gas inlet 5 Cold water 6 Storage tank 7 Storage tank load pump 8 Storage tank sensor 9 Domestic utilities 10 Hydraulic safety unit (by the installer) 11 Cold water inlet 12 So me state re quir e thi s safe ty pressure-temperature relief valve

* The recirculation line is not mandatory.

4.- connect the other end of the cable to the storage tank temperature sensor;

5.- introduce the temperature sensor inside the storage tank

sample point (see gure 5.10 detail “8”).

6.- Connect the electric power of the storage tank pump (see

gure 5.10 detail “7”) to “PE” terminals of the water heater.

The AGUADENS appliances can be connected to a storage tank even following installation. In this case,

the parameter 3012 must be set at the value of 1.

The temperature of the water stored inside the storage tank can be selected by the user in a range between 40 and 70°C.

ATTENTION !!! A domestic hot water

temperature level exceeding 51°C can cause permanent injury/damage to persons, animals and objects. Children, the elderly and disabled must be protected against the potential risks of scalding, by introducing devices that limit the temperature of use of domestic hot water to utilities.

5.12.1 - Anti- legionella precaution

If the appliance is connected to a storage tank for the preparation of domestic hot water, a disinfection cycle is envisioned against the legionella bacterium. This cycle envisions taking the storage tank to a temperature of 60°C (temperature at which the legionella bacteria dies) at least every week. It is for this reason that the water (at certain times) can reach the utilities at a higher temperature that than set with the relative command.

ATTENTION !!! A domestic hot water

5.12.2 - External secondary return

conguration

If the appliance is envisioned with external recirculation

unit, the recirculation cut-off valve (detail of gure 4.2) must

be turned to the closed position.

Page 20

AGUADENS

COSMOGAS

5.13 - Flue systems

ATTENTION !!! The relevant national and local

regulations must be strictly adhered to when installing

the exhaust ue and combustion air pipes.

ATTENTION !!! The exhaust ue gases from

the appliance can reach 90°C in certain conditions.

Therefore, the plastic ue components must be capable

of withstanding high temperatures and they must be

approved for these specic appliance.

ATTENTION !!! This appliance is the

“condensing” type. The polypropylene materials used

in the manufacture of plastic exhaust ue system

which are approved for use are designed to prevent corrosion which would otherwise be caused to the acidity of the condensate. AISI316 stainless steel

exhaust ue system can also be designed for this

purpose.

Regarding this, remember that the appliances of this type must have exhaust and intake pipes supplied by the manufacturer of the appliance itself. Other types of pipes, if used, must however be type-approved for this intended use. The types of exhaust for which the appliance is approved are given in the features table at the end of the

manual under “type” and o the features plate afxed to the appliance, also under “type”. The symbols used to dene

exhaust is reported below:

- B23, separated with intake in room and exhaust through wall or roof.

ATTENTION !!! If the appliance is installed with the

B23 type exhaust, it will take in air for combustion from the surrounding environment. Therefore, all precautions must be taken regarding ventilation of the rooms, which are prescribed by the national and/or local Standards.

- C13, coaxial in vertical wall

- C33, coaxial at the roof

- C43, separated with exhaust in ue, combined with intake

in common channel.

ATTENTION !!! The appliances installed in type

C43 must only be connected to conventional ues.

- C53, separated with exhaust on roof and intake on wall or however, in two potentially different pressure points.

- C63, the appliance can be tted to type-approved exhaust

and intake pipes of other brands.

ATTENTION !!! With the C63 type exhaust,

the condensate coming from the chimney cannot be conveyed into the appliance.

- C83, separated with wall intake or another point independent from the intakes of other appliances and

ue exhaust.

Figure 5.11 - Exhaust/intake systems

5 - INSTALLATION

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AGUADENS

COSMOGAS

During operation, especially in winter, a plume will be visible as the water vapour in the exhaust gases come into contact with the outside air. This plume should not cause any concern however the installer should discuss the matter with the customer prior to commencement of the installation in case the aesthetical impact of this plume might cause a problem.

5.13.1 - Exhaust ue with indipendent

combustion air grille type B23

In the case of B23 type combustion agent air/fumes exhaust systems, it is indispensable that the rooms in which the appliances are installed have at least as much air as that required by combustion and ventilation of the room. It is therefore good practice to remember that the combustion of

1 m³ of gas requires 11 cm³ of air. The natural ow of air must

take place directly through permanent openings made in the outside walls of the room to be ventilated; however away from sources of pollution, such as: vents of dubious origin, airborne industrial exhaust etc.

The ventilation openings must meet the following requirements:

have sections with net passage of at least 6 cm² for

every kW of heat input installed, with minimum of 100 cm²;

be realised in a way that the opening inlets both inside

and outside the wall cannot be blocked;

be protected for example with grids, metal meshes, etc.

The net section of the passage must not be reduced by these elements;

be situated at a height more or less of the oor and such

not to disturb the correct operation of the combustion products exhaust devices. Where this position is not possible, the section of the ventilation openings must be increased by at least 50%.

The ow of air can also be obtained from an adjacent room

as long as:

it has direct ventilation, in compliance with the previous

points;

only this gas appliance is installed in the room to be

ventilated;

the adjacent room is not a bedroom; the adjacent room is not a common part of the building; the adjacent room is not an environment with re hazard,

such as a hangars, garages, combustible materials warehouse, etc.;

the adjacent room does not have a negative pressure with

respect to the room to be ventilated due to reverse draught (which can be caused by the presence in the room of

another appliance operating with any type of fuel, a replace

and any other intake device for which an adequate air intake has not been envisioned);

the ow of air from the adjacent room to that to be ventilated

can take place freely through permanent openings with total net section not less than that indicated at the start of this chapter.

In rooms where gas appliances are installed, it may become necessary, as well as the input of combustion agent air, also to evacuate the stale air, with resulting release of an additional equal amount of clean air.

If the stale air is evacuated with the aid of a mechanical tool (electric fan) the following conditions must be respected: a) If there is a common exhaust pipe in the room, it must be

capped;

b) The ventilation opening of the room in which the gas

appliance is installed must be increased depending on the

maximum air ow rate required at the electric fan.

c) The action of the electric fan must not affect the correct

evacuation of the combustion products. To this end, that

stated above must be veried by draft testing, running the

fan or extractor hood at its maximum power and the gas appliance at the maximum and minimum power.

5 - INSTALLATION

Flue terminal location

Page 22

AGUADENS

COSMOGAS

5.13.2 - “Split 80/80PP” System

(polypropylene) (Type C43; C53; C83) AGUADENS 16-22-27

The appliance is supplied as per standard without ttings

for the connection of the fumes exhaust/air intake. To connect it to a “80/80PP Split” system, the relevant kit must

be requested and must be installed as in gure 5.12.

Fitting “A” can rotate freely by 360°, guaranteeing optimum installation versatility.

On the exhaust ue side, it is mandatory to install

polypropylene plastic pipes or AISI 316L stainless steel which are resistant to damage from condensation.

Take particular care with the installation of pipes in

the part that passes through the wall to the outside. The normal maintenance operations must always be possible, therefore install the pipes in a sheath so that they can slide out.

The horizontal exhaust ue pipes must always have

an inclination of 2% with the fall back towards the appliances as opposed to the wall terminal.

The appliance is already set-up to collect the

condensate, which must be tted to a drain pipe (see

chapter 5.7).

ATTENTION !!! This condensate drain is

designed to make all liquid produced ow from a single

appliance. If several appliances are installed, each one must envision its own condensate drain.

The fumes exhaust/air intake system can be extended up to a maximum distance as indicated in chapter 9. Every 90° bend has a loss equivalent to 1 metre of linear pipe. Every 45° bend has a loss equivalent to 0.5 m of linear pipe.

ATTENTION !!! The exhaust ue terminal must

be appropriately protected against the effects of the wind (see also 7.11.1 error Loc 20).

ATTENTION !!! Mechanically secure the joints

between the various component elements of the

exhaust and intake pipe, through the use of xing systems or equivalent systems. See gure 5.14

ATTENTION !!! The temperature of the exhaust

pipe can reach 90°C during operations. If it must pass through a wall that is sensitive to these temperatures, insert a protective heat-isolation sheath.

ATTENTION !!! If the air intake and fumes

exhaust terminals are positioned in the same wall, they must remain at a minimum distance of 1 metre.

ATTENTION !!! The exhaust and intake pipes

must be appropriately sustained via rigid brackets positioned no more than 1 metre from each other. The

brackets must be xed to rigid walls that can support

the weight of the pipe itself.

Figure 5.14 - Fixing the exhaust and intake pipes

Figure 5.12 - Installation of the “80/80PP Split” System

Figure 5.13 - Clearance

5 - INSTALLATION

020002.01.011

Page 23

AGUADENS

COSMOGAS

5.13.3 - “Split 80/80PP” System

(polypropylene) (Type C43; C53; C83) AGUADENS 37

The appliance is supplied as per standard without ttings

for the connection of the fumes exhaust/air intake. To connect it to a “80/80PP Split” system, the relevant kit must

be requested and must be installed as in gure 5.15.

Fitting “A” can rotate freely by 360°, guaranteeing optimum installation versatility.

On the exhaust ue side, it is mandatory to install

polypropylene plastic pipes or AISI 316L stainless steel which are resistant to damage from condensation.

Take particular care with the installation of pipes in

the part that passes through the wall to the outside. The normal maintenance operations must always be possible, therefore install the pipes in a sheath so that they can be slid out.

The horizontal exhaust ue pipes must always have an

inclination of 2% with the fall back towards the appliance as opposed to the wall terminal.

The appliance is already set-up to collect the

condensate, which must be tted to a drain pipe (see

chapter 5.7).

ATTENTION !!! This condensate drain is

designed to make all liquid produced ow from a single

appliance. If several appliances are installed, each one must envision its own condensate drain.

ATTENTION !!! The exhaust ue terminal must

be appropriately protected against the effects of the wind (see also 7.11.1 error Loc 20).

ATTENTION !!! Mechanically secure the joints

between the various component elements of the

exhaust and intake pipe, through the use of xing systems or equivalent systems. See gure 5.17

ATTENTION !!! The temperature of the exhaust

pipe can reach 90°C during operations. If it must pass through a wall that is sensitive to these temperatures, insert a protective heat-isolation sheath.

ATTENTION !!! If the air intake and fumes

exhaust terminals are positioned in the same wall, they must remain at a minimum distance of 1 metre.

ATTENTION !!! The exhaust and intake pipes

must be appropriately sustained via rigid brackets positioned no more than 1 metre from each other. The

brackets must be xed to rigid walls that can support

the weight of the pipe itself.

Figure 5.17 - Fixing the exhaust and intake pipes

Figure 5.15 - Installation of the “80/80PP Split” System

Figure 5.16 - Clearance

5 - INSTALLATION

020008.01.011

Page 24

AGUADENS

COSMOGAS

5.13.4 - “Split 80/80PP” System (Type C43;

C53; C83): accessories available

To make the “80/80PP split” fumes exhaust/air intake system, we propose some of the most common accessories available; remember that a wide range can be consulted in the relevant catalogue: (the number after the code is used to recall the piece in the following drawings) 62617306 - N° 10 PP roof terminal 62617244 - N° 12 90° bend M/F PP 62617255 - N° 29 converts for pitched roofs from 15° up to 25° 62617236 - N° 11 extension M/F PP 62617249 - N°18 anti-slip bands for extensions PP

62617240 - N° 14 exible hose M.F. PP L=20m 62617241 - N°16 spacer for exible hose

62617238 - N° 17 telescopic joint PP

62617242 - N° 15 T-tting PP

62617246 - N° 13 45° bend M/F PP

COD. 62617306

5 - INSTALLATION

Page 25

AGUADENS

COSMOGAS

5.13.5 - “Split 80/80PP” System (Type C43;

C53; C83): installation examples

In gure 5.18 two examples of installation are given:

- exhaust into chimney with collection of condensate inside the appliance itself.

The horizontal part of the fumes exhaust must slope towards the appliance. The intake must slope towards the outside to prevent rain water entering.

- exhaust to the outside directly with the appliance pipes with condensate collection inside the appliance itself.

The intake must slope towards the outside to prevent rain water entering.

In gure 5.19 it is possible to see a separated type of fumes exhaust, where fumes exhaust was realised with exible hose

in polypropylene for piping of technical cells. The condensate produced in the vertical pipe must all be conveyed into the appliance. The intake must slope towards the outside to prevent rain water entering.

Figure 5.18 - Example of “80/80 PP System” installation

Figure 5.19 - Example of “80/80 PP System” installation

5 - INSTALLATION

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AGUADENS

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020002.01.012

5.13.6 - “60/100PP vertical coaxial” System

(polypropylene) (C13; C33 Type) AGUADENS 16-22-27

The appliance is supplied as per standard without ttings

for the connection of the fumes exhaust/air intake. To connect it to a vertical 60/100 system, the relevant kit must

be requested and must be installed as in gure 5.20.

ATTENTION !!! Scrupulously follow the installation

phases of the coaxial pipe as illustrated in gure 5.22. In

particular:

1.- introduce the coaxial pipe “C” inside the bend “A”;

2.- x the external pipe using the stainless steel self-threading

screws “B”.

ATTENTION !!! The coaxial exhaust and

intake pipes must be appropriately sustained via rigid brackets positioned no more than 1 metre from each

other. The brackets must be xed to rigid walls that can

support the weight of the pipe itself.

ATTENTION !!! Once these operations have

been performed, check that the exhaust/intake terminal is exposed to the outdoors with the tolerances given in

gure 5.26

Take particular care with the installation of pipes in the part

that passes through the wall to the outside. The normal maintenance operations must always be possible, therefore install the pipes in a sheath so that they can slide out.

The horizontal exhaust ue pipes must always have an

inclination of 2% with the fall back towards the appliances as opposed to the wall terminal.

The combined exhaust/air intake pipe can be extended up

to a maximum distance as indicated in the table in chapter 9 at the end of the manual. Every 90° bend has a loss equivalent to 1 metre of linear pipe. Every 45° bend has a loss equivalent to 0.5 m of linear pipe.

Figure 5.20 - Installation of vertical coaxial system

Figure 5.21 - Quotes and hole centre to centre distances for coaxial drain pre-installation

Figure 5.22 - Positioning the coaxial pipe

5 - INSTALLATION

Page 27

AGUADENS

COSMOGAS

Figure 5.24 - Quotes and hole centre to centre distances for coaxial drain pre-installation

5 - INSTALLATION

Figure 5.25 - Positioning the coaxial pipe

5.13.7 - “60/100PP horizontal coaxial”

System (polypropylene) (C13; C33 Type) AGUADENS 16-22-27

The appliance is supplied as per standard without ttings

for the connection of the fumes exhaust/air intake. To connect the appliance to a 60/100 coaxial system, request

the relevant kit and install it as in gure 5.23.

ATTENTION !!! Scrupulously follow the installation

phases of the coaxial pipe as illustrated in gure 5.25. In

particular:

1. - introduce the coaxial pipe “C” inside the bend “A”;

2. - x the external pipe using the stainless steel self-threading

screws “B”.

ATTENTION !!!The coaxial exhaust and intake

pipes must be appropriately sustained via rigid brackets positioned no more than 1 metre from each

other. The brackets must be xed to rigid walls that can

support the weight of the pipe itself.

ATTENTION !!! Once these operations have

been performed, check that the exhaust/intake terminal is exposed to the outdoors with the tolerances given in

gure 5.26

Take particular care with the installation of pipes in the part

that passes through the wall to the outside. The normal maintenance operations must always be possible, therefore install the pipes in a sheath so that they can be slid out.

The horizontal exhaust ue pipes must always have an

inclination of 2% with the fall back towards the appliances as opposed to the wall terminal.

The combined exhaust/air intake pipe can be extended up

020002.01.013

Figure 5.23 - Installation of horizontal coaxial system

Page 28

AGUADENS

COSMOGAS

5.13.8 - “60/100PP Coaxial” System:

accessories available

The following accessories are available on request to make the 60/100 coaxial fumes exhaust/air intake system: (the number after the code is used to recall the piece in the following drawings) 62617255 - N° 2 converts for pitched roofs from 5° to 25° extension L = 1000 mm 62617234 - N° 1 90° coaxial bend M/F PP 62617252 - N° 6 45° coaxial bend M/F PP 62617231 - N° 7 Coaxial extension L 1m PP 62617304 - N° 3 coaxial PP roof terminal 62617232 - N° 5 coaxial PP wall terminal

5 - INSTALLATION

Page 29

AGUADENS

COSMOGAS

5 - INSTALLATION

5.13.9 - “60/100PP Coaxial” System:

installation examples

When a coaxial exhaust is made (see gure 5.26), both vertical

and horizontal, the exhaust pipe slope upwards in a way to

make the condensate ow into the appliance.

ATTENTION !!! The horizontal terminal must be

protected against the accidental return of rain water. To do this, gables must be installed (or projections or balconies or relevant protections ) with the minimum

dimensions given in gure 5.26

Figure 5.26 - Examples of coaxial pipe installations

Page 30

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COSMOGAS

020008.01.013

5.13.10 - “80/125PP vertical coaxial”

System (polypropylene) (C13; C33) AGUADENS 37

The appliance is supplied as per standard without ttings

for the connection of the fumes exhaust/air intake. To connect it to a vertical 80/125 system, the relevant kit must

be requested and must be installed as in gure 5.27.

ATTENTION !!! Scrupulously follow the installation

phases of the coaxial pipe as illustrated in gure 5.29. In

particular:

1.- introduce the coaxial pipe “C” inside the bend “A”;

2.- x the external pipe using the stainless steel self-threading

screws “B”.

ATTENTION !!! The coaxial exhaust and

intake pipes must be appropriately sustained via rigid brackets positioned no more than 1 metre from each

other. The brackets must be xed to rigid walls that can

support the weight of the pipe itself.

ATTENTION !!! Once these operations have

been performed, check that the exhaust/intake terminal is exposed to the outdoors with the tolerances given in

gure 5.30

Take particular care with the installation of pipes in the

part that passes through the wall to the outside. Normal maintenance operations must always be possible, therefore install the pipes in a sheath so that they can slide out.

The horizontal exhaust ue pipes must always have an

inclination of 2% with the fall back towards the appliances as opposed to the wall terminal.

The combined exhaust/air intake pipe can be extended up

Figure 5.27 - Installation of vertical coaxial system

Figure 5.28 - Quotes and hole centre to centre distances for coaxial drain pre-installation

Figure 5.29 - Positioning the coaxial pipe

5 - INSTALLATION

Page 31

AGUADENS

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5.13.11 - “80/125PP Coaxial” System:

accessories available

The following accessories are available on request to make the 80/125 coaxial fumes exhaust/air intake system: (the number after the code is used to recall the piece in the following drawings) 62617255 - N° 2 converts for pitched roofs from 5° to 25° extension L = 1000 mm 62617321 - N° 1 90° coaxial bend M/F PP 62617322 - N° 6 45° coaxial bend M/F PP 62617323 - N° 7 Coaxial extension L 1m PP 62617325 - N° 3 coaxial PP roof terminal 62617324 - N° 5 coaxial PP wall terminal

5 - INSTALLATION

62617255

62617321

62617322

62617323

62617324

62617325

Page 32

AGUADENS

COSMOGAS

5.13.12 - “80/125PP Coaxial” System:

installation examples

When a coaxial exhaust is made (see gure 5.30), both vertical

and horizontal, the exhaust pipe slope upwards in a way to

make the condensate ow into the appliance.

ATTENTION !!! The horizontal terminal must be

protected against the accidental return of rain water. To do this, gables must be installed (or projections or balconies or relevant protections ) with the minimum

dimensions given in gure 5.30

Figure 5.30 - Examples of coaxial pipe installations

5 - INSTALLATION

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6.1 - Operating

Before starting the appliance up, it is necessary to carry out the following.

6.1.1 - User instructions

Instruct the user regarding correct use of the appliance and the plant in general. In particular:

Give the installation and user manual and all

documentation contained in the packaging to the user.

Instruct the user concerning the special measures for the

exhaust of burned gases, informing them that they must

not be modied.

Inform the user regarding the correct adjustment of the

temperatures settings.

6.1.2 - Filling the condensate drain siphon

The siphon found inside the appliance (see gure 3.1 detail “40”), must be lled with water to create the water head able to prevent the fumes escaping from pipe “F” in gure 5.8.

Proceed as follows to do this:

(refer to gure 6.1)

1.- loosen the screw “E”;

2.- remove the lid “D” and the gaskets “C”;

3.- introduce a rubber hose into the opening “B” (do not confuse with “A”) and the other end of the hose into the funnel;

4.- use the funnel to slowly pour about 200 cm³ (a glass) of water;

5.- re-mount everything in reverse order.

6 - OPERATING

Figure 6.1 - Filling the condensate drain siphon

ATTENTION !!! If the appliance remains off for

more than 3 months, the siphon must be lled again as

explained above.

6.2 - General recommendations regarding the supply of gas

For commissioning of the appliance, have a professionally

qualied technician perform the following checks:

That the appliance is powered by the type of fuel for

which it is set-up.

That the gas supply pressure (with appliance operating

and at a standstill) is within the maximum and minimum values indicated in the table in chapter 9 at the end of the manual.

That the supply plant has all safety and control parts

envisioned by the current national and local Standards.

That the exhaust ue terminal discharge terminal and

the combustion agent air intake terminal are free from any obstruction.

That the exhaust ue terminal and combustion agent air

intake terminal are positioned outside the building.

That the condensate drain connection is connected.

ATTENTION !!! If you smell gas:

A - Do not switch on any electric device, telephone

included or any object that can cause sparks;

B - Immediately open doors and windows causing

a current of air that quickly cleans the gas from the room;

C - From another room, or from a neighbour’s,

immediately call a professionally qualied

technician or the gas supply company. Call the Fire Service if the former are not available.

6.3 - Type of gas for which the appliance is regulated.

There is a label on the front of the appliance certifying the gas supply type and pressure for which it is adjusted. The appliance may have the following 2 types of wording:

2H-G20-20mbar NATURAL GAS

means that the appliance is adjusted to operate with H type gas of the second family (natural gas) at a supply pressure of 20 mbar.

3P-G31-37mbar LP GAS

means that the appliance is adjusted to operate with type P gas (Propane, also called LP Gas) of the third family, at a supply pressure of 37 mbar.

Page 34

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COSMOGAS

6.4 - Conversion of the appliance from one type of gas to another

ATTENTION !!! Read these instructions carefully

before changing the gas:

- The gas appliance must be installed, calibrated or

modied by specialised staff in compliance with legal

terms;

- Check and be certain that the type of gas which is powering the appliance is compatible with the adjustment kit in your possession;

- Do not power the appliance with gases different from those envisioned.

Follow the instructions given below to change the gas: 1 - disconnect the electric power supply upstream from the

appliance;

2 - open the appliance casing as reported in chapter 8.2; 3 - access the control and command board as reported in

chapter 8.2;

4 - move the microswitch “B” from left to right to the “ON”

position (see gure 6.5);

5 - apply electric power to the appliance; 6 - the parameter 3001 will appear on the appliance’s

visual display, followed by its value;

7 - using the

and keys, access the

parameter 3002;

8. - press the RESET key to make the 3002 parameter

ash;

9. - using the

and keys, set the value of

the parameter 3002 to the new corresponding value

according to the table in gure 6.7.

10. - press the RESET key to conrm the modication.

11.- remove voltage from the appliance, re-position the

microswitch “B” from right to left in “OFF” position (see gure

6.5).

12. - close the gas supply;

13. - remove the air manifold making sure to turn it

externally and then slide it out of the fan inlet (see gure

6.2, detail “C”);

15. - remove the gas inlet pipe via the two ttings (see gure 6.2, details “H” and “L”);

16. - remove the clamping spring “M” from the seat “N”

releasing the valve “P”(See gure 6.3);

17. - slide the gas valve “P” out upwards;

18. - replace the gas nozzle “R” (see gure 6.4) with an appropriate one according to that stated in gure 6.7

under “Diameter of the gas nozzle”;

19. - remount the gas valve (see gure 6.3, detail “P”),

making sure to reposition the spring “M”.

20. - remove the gas supply pipe via the two ttings (see gure 6.2, details “H” and “L”);

21. - re-mount the air manifold (see gure 6.2, detail “C”);

22. - open the gas isolation valve;

23. - check for gas leaks an all joints.

ATTENTION !!! Perform the gas leak test according

to that established by the current Standard and only using

soapy water. The use of naked ames is prohibited.

020003.01.040

020003.01.41

020002.01.042

Figure 6.4 - Replacing the gas nozzle

Figure 6.3 - Removing the gas valve

Figure 6.2 - Removing the air manifold

6 - OPERATING

Page 35

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ATTENTION !!! If you smell gas:

A - Do not switch on any electric device, telephone

included or any object that can cause sparks;

B - Immediately open doors and windows causing

a current of air that quickly cleans the gas from the room;

C - From another room, or from a neighbour’s,

immediately call a professionally qualied

technician or the gas supply company. Call the Fire Service if the former are not available.

24.- check the supply gas pressure, following the procedure in paragraph 6.6;

25.- open the CO2 adjustment screw completely (see gure

6.14 detail “A”);

26.- control and adjust the CO2, following the procedure in paragraph 6.8;

27.- instead of the label that identified the old state of adjustment, apply the sticker onto the front casing of

the appliance (see gure 6.6), certifying the appliance’s

new state of adjustment, as follows: apply label “B” if the appliance has been converted from NATURAL GAS to LP GAS; apply label “A” if the appliance has been converted from LP GAS to NATURAL GAS.

B – Microswitch

Figure 6.5 - Positioning the microswitch

020002.01.043

OFF

6 - OPERATING

Model

Type

of gas

Setting

parameter

3002

Gas supply

minimum pressure

(mbar)

Gas supply

maximum

pressure

(mbar)

Gas nozzle

diameter

(mm)

CO2

Maximum

power

(%)

CO2

Minimum

power

(%)

Maximum

power

(%)

Minimum

power

(%)

NAT 50 15 27 4,9 9,0 ±

0,3 8,5 ± 0,2 4,8 ± 0,2 5,5 ± 0,2

LPG 51 25 45 3,7 10,5 ± 0,3 10,0 ± 0,2 4,8 ± 0,2 5,6 ± 0,2

NAT 52 15 27 6,7 9,0 ±

0,3 8,5 ± 0,2 4,8 ± 0,2 5,5 ± 0,2

LPG 53 25 45 5,2 10,5 ± 0,3 10,0 ± 0,2 4,8 ± 0,2 5,6 ± 0,2

NAT 54 15 27 8,0 8,7 ±

0,3 8,3 ± 0,2 4,7 ± 0,2 5,4 ± 0,2

LPG 55 25 45 6,0 10,1 ± 0,3 9,9 ± 0,2 4,7 ± 0,2 5,5 ± 0,2

NAT 54 15 27 10,0 8,7 ±

0,3 8,3 ± 0,2 4,7 ± 0,2 5,4 ± 0,2

LPG 55 25 45 6,5 10,1 ± 0,3 10,8 ± 0,2 4,7 ± 0,2 5,8 ± 0,2

Figure 6.6 - Labels certifying the new status of adjustment of the appliance

Figure 6.7 - Correspondence table for the parameter 3002 and the operating values

Page 36

AGUADENS

COSMOGAS

Figure 6.8 - Gas valve

A - Gas inlet pressure point.

6 - OPERATING

6.5 - Ignition

1.- open the gas isolation valve;

2.- power the appliance electrically;

3. - adjust the temperature desired for the domestic hot water

service using the

and keys. The icon , present on the display will inform regarding the operating state of the domestic hot water service:

a) xed

icon: domestic hot water inactive (no-one is withdrawing domestic hot water, or in the case of a storage tank, the delivery temperature as been reached)

b) ashing

icon: domestic hot water is being withdrawn.

020003.01.023

Page 37

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6 - OPERATING

6.6 - Measurement and adjustment of gas pressure adjustment

The gas supply pressure must correspond to that stated in the table in chapter 9 at the end of the manual.

For its verication, proceed as follows:

1.- close the gas isolation valve;

2.- access the components inside the appliance, following the procedure in paragraph 8.2;

3.- loosen the pressure point “A” (see gure 6.8);

4.- connect to a manometer with resolution of at least 0.1 mbar (1 mmH2O);

5.- open the gas isolation valve;

6.- check that the pressure does not exceed the value given in the table in chapter 9 under “gas supply maximum pressure”;

7.- open the domestic hot water tap to maximum;

8.- wait for the temperature of the water heater to stabilise;

9.- check that the pressure does not drop to a lower value than the “gas supply minimum pressure” given in the table in table 9. If the supply pressure does not respect the values described, operate upstream from the appliance in order to take it back within the minimum and

maximum eld;

10.- close the domestic hot water tap;

11.- close the pressure point “A” in gure 6.8;

12.- check for gas leaks an all joints.

ATTENTION !!! Perform the leak test using a soap

and water only. The use of naked ames is prohibited.

Page 38

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Figure 6.9 - Combustion agent air pressure point

Figure 6.11 - Controlling combustion air pressure

6.7 - Measurement of

combustion air pressure

As the appliance has an air/gas ratio xed in the factory, the

gas pressure at the burner is controlled indirectly by measuring the pressure of the combustion air inside the appliance and must correspond to that stated in the table in chapter 9, under “Combustion agent air pressure”. Proceed as follows for the check (refer to the Figures from

6.9 to 6.12):

1.- use a differential manometer with precision of at least 0.1 mbar (1 mmH2O);

2.- close the gas isolation valve;

3.- open the appliance casing following paragraph 8.2;

4.- remove the caps “A” (see gure 6.9);

5.- take the exible hose “D”, which is found inside the appliance and remove the cap “B” (see gure 6.9);

6.- insert the pipe “D” inside the hole indicated by the arrow

in gure 6.9;

7.- loosen the pressure point “H” in gure 6.10;

8.- take a silicone pipe with external diameter of 10 mm and

internal diameter of 7mm (detail “E” in gure 6.10) and

introduce it into pressure point “H”;

9.- insert pipe “E” into the hose as indicated in gure 6.11;

10.- connect the manometer to the two pipes “E” and “F” as

illustrated in gure 6.12, making sure to connect the pipe “E”

to the negative pressure point and tube “F” to the positive pressure point;

11.- close the casing “B” in gure 8.1. It is indispensable

to have a reliable measurement;

12.- switch the appliance on;

13.- press the

and RESET keys simultaneously for

more than 5 seconds to enter the “installer” menu

conrmed by the icon

appearing on the display.

14.- using the

and keys, access the

parameter 2010;

15.- press the RESET key to enter the parameter and use the

and keys, to modify the value to FAn;

16.- press the RESET key to conrm the modication. Now

just the fan will operate at maximum speed for 10 minutes.

17.- compare the pressure value read on the manometer with that given in the table in table 9, “Combustion air pressure”. If the pressure is at a lower value, check that there are no

obstructions in the combustion air/exhaust ue pipes or

that the combustion air/exhaust system does not exceed the parameters as detailed in table 9 entitled combustion air/exhaust pipe max. length for the relevant type;

18.- Once the control has ended, press the RESET key

again to enter parameter

2010 and via the

and

keys, change the value to OFF;

19.- press the RESET key to conrm the modication;

20.- hold the RESET key down for 5 seconds to exit the “installer” menu.

At the end of the control, remove the tube “E”, close the holes indicated by the arrow using the previously-removed caps “A”, close the pipe “D” using cap “B” and close the

pressure point “H” again as in gures 6.9 and 6.10.

6 - OPERATING

C B

020002.01.019

020002.01.020

Figure 6.10 - Combustion agent air pressure point

020002.01.022

Page 39

AGUADENS

COSMOGAS

Figure 6.13 - Combustion analysis points

6.8 - Measurement and

adjustment of CO2 levels

The appliance in normal operating mode and for altitudes within 1000 m, must have a CO2 (carbon dioxide) level in the exhaust

ue gases within the parameters as detailed in paragraph 9. A value

which is different to those detailed can cause malfunctions and is strictly prohibited. Combustion analysis must be performed to check and eventually adjust this value. Proceed as follows:

1.- check a combustion analyser to the appropriate point on

the fumes exhaust tting “B” in gure 6.13;

2.- open the domestic hot water tap fully;

3.- wait for the CO2 measurement to stabilise;

4.- compare the value measured with that given in the

table in gure 6.7, “CO2 maximum power”. If the value

measured is offset from the value read, it must be taken

back within the value given in the table in gure 6.7.

proceeding as follows:

a) turn screw “A” clockwise as in gure 6.14 to decrease

the level of CO2;

b) turn screw “A” anti-clockwise as in gure 6.14 to increase

the level of CO2;

5.- once the check has been completed, seal the screw “A” in

gure 6.14 with red pain or something similar;

6.- press the RESET key again to enter the parameter

2010 and use the and keys, to modify

the value to

LOu;

7.- press the RESET key to conrm the modication. Now

the burner will operate at minimum power for 10 minutes.

8.- wait for the CO2 measurement to stabilise;

9.- the value of CO2 at minimum power must correspond;

10.- once the check has been completed, seal the screw “B”

in gure 6.14 with red pain or something similar;

11.- press the RESET key again to enter the parameter

2010 and use the and keys, to modify

the value to

OFF;

12.- press the RESET key to conrm the modication.

13.- hold the RESET key down for 5 seconds to exit the “installer” menu.

14.- close the previously-opened domestic hot water tap.

6 - OPERATING

020002.01.015

Figure 6.14 - Gas valve

A - CO2 regulation screw

020002.01.045

020002.01.021

Figure 6.12 - Controlling combustion agent air pressure

Page 40

AGUADENS

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6 - OPERATING

Figure 6.15 - domestic hot water ow rate selector

020003.01.016

6.9 - Adjusting the domestic

hot water ow rate

The appliance is tted with a domestic hot water maximum ow rate adjuster. However, if the appliance is installed in a

geographical area where the temperature of the cold water

is very low, the ow rate of domestic hot water that passes

inside the appliance may have to be reduced. It is therefore good practice to perform this adjustment:

1.- switch the appliance on;

2.- using the

and keys, adjust the

temperature of the domestic hot water to 48 - 50°C;

3.- open the domestic hot water tap fully. In the case of a single lever mixer, the position must be completely on “HOT”;

4.- wait 3 minutes for the temperature to stabilise;

5 - if the water temperatures too cold, the ow rate must

be reduced via the selector “A” in gure 6.15, until the

desired temperature is reached.

Page 41

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7 - USE

Figure 7.1 - Control board

Key for gure 7.1

A - On/off switch B - Reset Key C - Burner status (the burner is on when this icon is

present) D - State of the domestic water service: Icon off = domestic water off Icon on = domestic water active but not operating

Icon ashing

= domestic water active and operating E - Unit of measurement of the pressure displayed F - Heating plant pressure or indicator of the various

parameters inside the various menus G - Icon for entry into the “Installer” menu H - Domestic hot water temperature or indicator of the

values assumed by the various parameters L - Unit of measurement of the temperature displayed M - Appliance blocked (see paragraphs 7.11.1 and 7.11.2

for the diagnostics) N - Key for switching on and increasing the temperature of

the domestic hot water or for scrolling and changing the

value of the parameters P - Key for reducing the temperature of the domestic

hot water (below minimum, the domestic hot water is

switched OFF) or for scrolling and changing the value of

the parameters

7.1 - Valve positions

- The gas isolation valve must be open;

- Any service valves which are tted on the cold and hot water

supply pipes must be open.

7.2 - Display

During operation the display shows the appliance operating state as well as other information as indicated in chapter

7.11 (Diagnostics). Other parameters can be consulted through the “User menu” (see paragraph 7.9), which are useful for understanding operation of the appliance and to control the latest blocks or errors occurring.

After 5 minutes of normal operation, the display switches off completely to save energy. Just press any key to switch it back on. In the case of any anomaly, the display switches back on

automatically. This function can be modied by following

chapter 7.8 (Energy saving).

7.3 - Ignition procedure

1.- open the gas isolation valve;

2.- power the appliance electrically;

3.- adjust the temperature of the domestic hot water as per chapter 7.5.

The command and control equipment will switch the burner on. If ignition does not take place within 20 seconds, (the appliance automatically re-attempts ignition 3 times), it blocks and the

visual display will show Loc 1. Press the RESET key to restore the normal operating conditions. The appliance will automatically attempt a new ignition.

Page 42

AGUADENS

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7 - USE

ATTENTION !!! If shutdown due to blocking is

repeated frequently, contact a qualied technician to reset

the normal operating conditions.

7.4 - “User menu”

Entry into the “User menu” is highlighted by the visual display

“F”, in gure 7.1, which indicates parameters that can assume

values from 1001 to 1999. To enter the “User menu”:

1.- hold the RESET key down for 2 seconds until the visual

display “F” shows 1001;

2.- press the

and keys to scroll the parameters

situated inside the user menu;

3.- hold down the RESET key for more than 2 seconds to exit the “User menu”;

If no key is pressed for more than 60 seconds, the menu is exited automatically. The parameters in paragraph 7.9 can be queried in this menu.

7.5 - Adjustment of domestic

hot water temperature

The temperature of the domestic hot water is adjusted by

operating on the

and keys. On pressing one

of the two keys, the visual display “H” in gure 7.1 will start to ash and show the temperature that is being set. The range

of adjustment for the temperature of the domestic hot water goes from 40°C to 60°C or from 40°C to 70°C if there is a storage tank present.

By holding the

key down also below 40°C, OFF will

appear to indicate switch-off of the domestic hot water service,

also highlighted by switch-off of the icon “D” in gure 7.1.

7.6 - Pump control features

To safeguard the lifespan of the appliance, improve the comfort generated and increase energy saving, timings have been introduced during operation. These timings are:

- Pump post-circulation: every time the domestic hot water service ends, the pump continues to operate for 2 minutes;

- Pumps anti-block: every 24 hours the recirculation pump and the storage tank loading additional pump (if present) are forced;

- Anti-legionella; if the appliance is connected to a storage tank for preparation of the D.H.W., every seven days the latter is forced to a temperature of 60°C to disinfect against the legionella bacteria. This function activates also two hours after the appliance has been powered electrically.

7.7 - Pumps anti-block

The pump switches on once every 24 hours for 15 seconds during the summer period in order to prevent any deposits that may block it. The storage tank loading pump (if present) is activated at the same time for the same reason.

7.8 - Display Energy Saving mode

To reduce the consumption of display energy, it will switch off automatically after 5 minutes from the last operation performed. This function can be deactivated or the time

modied via parameter 2100 present in the “Installer menu”

(see chapter 7.10). If the parameter is set at OFF, the display will remain on constantly.

Page 43

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7 - USE

Parameter Parameter Description M.U. 1001 Domestic hot water outlet temperature 1 °C 1002 Domestic hot water outlet temperature (or storage tank temperature, if present) °C 1003 No function / 1004 No function / 1005 Domestic hot water outlet temperature 2 (safety sensor) °C 1006 Exhaust ue temperature °C 1007 Cold water inlet temperature °C 1008 Ionisation current uA 1009 Status of the pump inside the appliance ON/OFF 1010 No function / 1011 No function / 1012 No function / 1013 No function / 1014 Exhaust ue temperature 2 (safety sensor) °C 1040 Current rotation speed of the fan rpm 1041 Fan rotation speed on ignition rpm 1042 Fan rotation speed in minimum power mode rpm 1043 Fan rotation speed in maximum power mode rpm 1051 Latest block condition recorded (Loc) (see chapter 7.11.1) / 1052 Latest error condition recorded (Err) (see chapter 7.11.2) / 1053 Number of times the burner has lost the ame n° 1055 Number of failed burner ignitions n° 1056 No function / 1057 Number of hours worked in domestic hot water mode h x 10 1058 Number of burner working days days 1059 Interval of time between the last two blocking errors (Err)

1 value in minutes; 2 value in hours;

3 value in days; 4 value in weeks;

1060 Interval of time between the last two blocks (Loc)

1061 Current rotation speed of the domestic hot water turbine rpm 1062 Current domestic hot water ow rate l/min

7.9 - “User menu” Parameters

To access the “User menu” follow that reported in paragraph 7.4. The following parameters can be queried in this menu:

Page 44

AGUADENS

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7.10 - “Installer menu” & parameters

ATTENTION !!! The modication of these

parameters could cause the appliance, and therefore the plant, to malfunction. For this reason only a technician that has the awareness and indepth knowledge of the appliances can modify them.

The appliance command and control board makes this parameter menu available to the technician for the analysis of operation and adaptation of the appliance to the plant. Proceed as follows to enter the “Installer menu”:

1.- hold the RESET and

keys down simultaneously

for 5 seconds until the 2001 parameter is displayed.

The symbol

appears on the display to indicate the

entry into the “Installer menu”.

2.- the

and keys can be used inside the

menu to scroll the parameters;

3.- once the parameter of interest has been displayed, it

can be modied as follows:

a.- press the RESET key to access the parameter (the

visual display “H” in gure 7.1 will start to ash);

b.- modify the value of the parameter using the

and

keys;

c.- press the RESET key to conrm the data modied

and go back to the list of parameters;

4.- To exit the “Installer menu”, hold down the RESET key

for 5 seconds until the symbol

disappears from the

display.

If no key is pressed for more than 5 minutes, the menu is

exited automatically. Any data variation that is not conrmed

with the RESET key will be lost.

ATTENTION !!! Any variation to the

parameters must be noted in the “Customised values” column present in the following table in order to facilitate the eventual replacement of the command and control board.

The following parameters can be changed or queried in this menu:

7 - USE

Parameter Parameter Description M.U. Setting range

Factory

value

Custo-

mised

values

2001 No function / / / /

2002 No function / / / /

2003 No function / / / /

2004 No function / / / /

2005 No function / / / /

2010 Forcing of fan and burner / OFF = No forcing

FAN = Forcing of fan only to max speed LOu = Forcing of burner to minimum power Ign = Forcing of burner to ignition power HIgH = Forcing of burner to maximum power rEg = Forcing of burner to maximum power

OFF

2011 Forcing the pump / On = Pump on

OFF = Pump off

OFF

2012 No function / / / /

2013 No function / / / /

2014 Icons test on the display. By pressing the REST key, all of the

icons on the display light up. By pressing the RESET key again to display goes back to normal operation

/ / /

2020 No function / / / /

2021 No function / / / /

2022 No function / / / /

2023 No function / / / /

2024 No function / / / /

2027 No function / / / /

Page 45

AGUADENS

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7 - USE

2040 No function / / / /

2041 No function / / / /

2042 No function / / / /

2043 No function / / / /

2060 Domestic hot water minimum power level % Da 1 a 50 1

2061 Domestic hot water maximum power level % Da 1 a 100 100

2062 Post-circulation in domestic hot water mode sec Da 10 a 900 120

2063 Maximum time for loading storage tank min Da 0 a 60 60 /

2064 Number of ow meter revs. for every litre of water rpm/lt Da 0 a 5 3,2

2066 Delay in the detection of the instantaneous domestic hot water sec Da 1 a 10 3

2067 Storage tank loading procedure / 0 = the storage tank is charged for

the time set in parameter 2063; 1 = OFF, the domestic hot water does not have priority over heating; 2 = ON, the domestic hot water always has priority over heating;

2080 Periodic maintenance meter

(after RESET, the meter automatically goes back to ON)

/ ON = Periodic maintenance

meter active; OFF = Periodic maintenance meter off; RESE = Meter reset

OFF

2081 Periodic maintenance meter: maintenance request time days From 0 to 1000 1000

2100 Energy saving display min OFF = display always on

From 1 to 30 = delay to switchoff in minutes.

Page 46

AGUADENS

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7.11 - Diagnostics

During normal operation of the appliance, the visual display

in gure 7.1 continuously shows the state of work of the

appliance, via the following indications:

7 - USE

Parameter Parameter Description Display on visual display “H” in gure 7.1

AFro

Anti-freeze function active Appliance temperature (°C)

AttE

Appliance not in block but in attention mode Attention code (see chapter 7.11.3 for decoding)

Fixed on = Domestic hot water service on but not active

On ashing = Domestic hot water service on and active

Domestic hot water temperature (°C)

Loc

Appliance blocked. To reset, press RESET. If the block occurs

frequently, contact a professionally qualied technician

Block code (see chapter 7.11.1 for decode)

Err

Appliance in error mode. Functioning can only be restored by solving the cause of the anomaly. Contact a professionally

qualied technician

Error code (see chapter 7.11.2 for decode)

ALEg

Anti-legionella function running (see chapter 5.12.1). It will end on reaching the water temperature of 60°C inside the storage tank.

Storage tank temperature (°C)

SEr

Maintenance request for the appliance Appliance temperature (°C)

Page 47

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7.11.1 - Diagnostics “Loc” block fault codes and potential solution

Block Block Description Checks Solutions

Loc 0 Internal memory error

E2prom at command board

Replace the command and control board.

Loc 1 1 No ame detection after

three successive ignition attempts.

Control: Supply gas pressure (see chapter 6.6), sparks on the ignition electrodes (see chapter

8.5);correct combustion air pressure (see chapter

6.7); 220Vac electric power supply to the gas valve; electric resistance of the two gas valve coils of 0.88 Kohm and 6.59 Kohm

If the burner switches on and switches off at the end of the ignition attempt, check: that the ionisation current is at a value over 4 (follow the procedure in chapter 8.13)

the supply pressure is not correct, operate upstream from the appliance to restore it; if the pressure of the combustion air is not correct, operate on the air intake/fumes exhaust circuit to eliminate any obstructions. If the current at the gas valve is not 230Vac, the command and control board must be replaced. If the electric resistance of the gas valve is not 0.88 Kohm and 6.59 Kohm, the valve must be replaced.

If the ionisation current is not over 4, the CO2 must be checked (follow chapter 6.8) and restore its correct value, check the ionisation electrode and replace it if necessary. Check the integrity of the ionisation current electric circuit cables.

Loc 2 Gas valve command relay

broken

Replace the command and control board.

Loc 3 I n tern al saf e ty rel ay

failure at command board

Replace the command and control board.

Loc 4 Appliance in error mode

for more than 20 hours

Control the last error displayed in the board. Operate according to the last error displayed.

Loc 5 Fan out of speed for

more than 60 seconds

Ceck that it is powered at 300 Vdc. If the fan is powered, it must be replaced, alternatively

replace the command and control board.

Loc 6 Software error inside the

command board

Replace the command and control board.

Loc 7 Content of the memo-

ry E2prom inside the command board, not updated

Replace the command and control board.

Loc 8 Parameters inside

the E2prom memory, incorrect

Replace the command and control board.

Loc 9 Software error inside the

command board

Replace the command and control board.

Loc 10 Software error inside the

command board

Replace the command and control board.

Loc 11 Not applicable

Loc 12 Not applicable

Loc 13 The appliance has

reached 95°C

Ceck that the pump functions. Restore water circulation or replace the command

and control board.

Loc 14 Exhaust ue maximum

temperature. To unblock the error, contact a qua-

lied after-sales centre,

which must move switch

“B” in g. 6.5 and press

the RESET key. Therefore, put the switch back in the original position.

Check that the pump is operating correctly;

Measure that appliance performance; it must correspond to that declared in the technical features.

If the pump does not operate, it must be replaced.

If the appliance is under-performing, the primary heat exchanger might be dirty either on the exhaust

ue side or the domestic water side or both. Follow

instructions in paragraph 8.4 and ceck again.

Loc 15 Software error inside the

command board

Replace the command and control board.

Loc 16 Software error inside the

command board

Replace the command and control board.

7 - USE

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Loc 17 Software error inside the

command board

Replace the command and control board.

Loc 18 Flame present 10

seconds after gas valve is closed

Replace the gas valve or the command and control board.

Loc 19 Flame present before

ignition

Replace the gas valve or the command and control board.

Loc 20 Flame lost three times Control: that the ionisation current is at a value over 4

(follow the procedure in chapter 8.13)

Control: that the exhaust ue system is not being

affected by high gusts of wind or nearby mechanically operated fans

If the ionisation current is not over 4, the CO2 must be checked (follow chapter 6.8) and restore the correct value. Check the ionisation electrode and replace it if necessary. Check the integrity of the ionisation current electric circuit cables.

If a horizontal exhaust ue terminal is exposed to

unusually high wind conditions or nearby mechanically

operated fans then a suitable deection shield or

protection should be considered or an alternative location should be considered. The same approch

should be taken for a vertical exhaust ue and in

addiction, ceck that downdraughts are not being

encountered due to the proximity of higher roof proles.

Loc 21 Not applicable

Loc 22 Not applicable

Loc 23 The D.H.W. outlet

sensors measure the different temperatures for more than 60 seconds.

Check that the electrical resistance of the two sensors match the graphics in chapter 8.15;

If one of the two or both sensors do not have correct values, they must be replaced;

Loc 24 The exhaust ue

sensors measure the different temperatures for more than 60 seconds.

Check that the electrical resistance of the two exhaust ue sensors match the graphics in paragraph 8.15

If one of the two sensors does not match the double

exhaust ue sensor must be replaced

Loc 25 Non applicable

Loc 26 Non applicable

Loc 27 Software error inside the

command board

Replace the command and control board.

Loc 28 Software error inside the

command board

Replace the command and control board.

7 - USE

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7 - USE

7.11.2 - Diagnostics “E” error fault codes and potential solutions

Error Error Description Checks Solutions

Err 30 Software error inside the

command board

Replace the command and control board.

Err 31 Software error inside the

command board

Replace the command and control board.

Err 32 Software error inside the

command board

Replace the command and control board.

Err 33 Software error inside the

command board

Replace the command and control board.

Err 34 Software error inside the

command board

Replace the command and control board.

Err 35 The supply temperature

exceeds 110°C with the gas valve closed

Check that the electrical resistance of the two supply sensors match the graphics in chapter 8.15.

Check that the gas valve closes the gas correctly when the burner switches off.

If one of the two sensors does not match, the double supply sensor must be replaced.

The gas valve must be replaced if it does not close correctly.

Err 36 Software error inside the

command board

Replace the command and control board.

Err 37 Software error inside the

command board

Replace the command and control board.

Err 38 Software error inside the

command board

Replace the command and control board.

Err 39 Software error inside the

command board

Replace the command and control board.

Err 40 Software error inside the

command board

Replace the command and control board.

Err 41 Software error inside the

command board

Replace the command and control board.

Err 42 Software error inside the

command board

Replace the command and control board.

Err 43 Software error inside the

command board

Replace the command and control board.

Err 44 Flame detected in a

moment when it should not be present

Replace the gas valve.

Err 45 Not applicable

Err 46 Not applicable

Err 47 Not applicable

Err 48 Software error inside the

command board

Replace the command and control board.

Err 49 Cold water inlet sensor

circuit(1007) open

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 50 Domestic hot water inlet

sensor 1 circuit (1001) open

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 51 Domestic hot water inlet

sensor 2 circuit (1005) open

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 52 Domestic hot water inlet

sensor 2 circuit (1002) open

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

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7 - USE

Err 53 Fumes 1 sensor circuit

(1006) open

Check that the electrical resistance of the exhaust ue

sensor 1006 matches the graphics in chapter 8.22

Check that the wires between the board and the

double exhaust ue sensor are connected correctly

If the sensor does not match, the double exhaust sensor must be replaced.

If the wires are not connected correctly, the connections must be restored.

Err 54 Fumes 2 sensor circuit

(1014) open

Check that the electrical resistance of the exhaust ue

sensor 1014 matches the graphics in paragraph 8.15

Check that the wires between the board and the

double exhaust ue sensor are connected correctly

If the sensor does not match, the double exhaust sensor must be replaced.

If the wires are not connected correctly, the connections must be restored.

Err 55 Not applicable

Err 56 Cold water inlet sensor

circuit(1007) in short circuit condition

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 57 Domestic hot water inlet

sensor 1 circuit (1001) in short circuit condition

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 58 Domestic hot water inlet

sensor 2 circuit (1005) in short circuit condition

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 59 Domestic hot water inlet

sensor 2 circuit (1002) in short circuit condition

Check that the electric resistance of the sensor matches the graphics in chapter 8.15. Check the electric cables for connection between the sensor and the command board.

If the electric resistance does not match, replace it. The electric circuit must be repaired if it is damaged. Without either of the two previous cases, replace the command and control board.

Err 60 Fumes 1 sensor circuit

(1006) in short circuit condition

Check that the electrical resistance of the exhaust ue

sensor 1006 matches the graphics in chapter 8.15

Check that the wires between the board and the

double exhaust ue sensor are connected correctly

If the sensor does not match, the double exhaust sensor must be replaced

If the wires are not connected correctly, the connections must be restored

Err 61 Fumes 2 sensor circuit

(1014) in short circuit condition

Check that the electrical resistance of the exhaust ue

sensor 1014 matches the graphics in chapter 8.15

Check that the wires between the board and the

double exhaust ue sensor are connected correctly

If the sensor does not match, the double exhaust sensor must be replaced

If the wires are not connected correctly, the connections must be restored

Err 62 Not applicable

Err 63 RESET key pressed too

many times in a very brief period

7.11.3 - Diagnostics “AttE” alarm fault codes and potential solutions

Alarm Description of the alarm Checks Solutions

AttE 65 Not applicable

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8.1 - General recommendations

It is recommended to perform regular yearly maintenance of

the appliance for the following reasons:

- to maintain high yield and therefore save fuel;

- to maintain a high level of safety;

- to maintain the level of environmental compatibility of the combustion high;

In order to maintain maintenance frequency, the parameter

2080 is present in the installer menu (see chapter

7.10), which is used to activate the maintenance call

(Service) along with parameter 2081 which is used to set the operating days and which must pass between one

intervention and the next. The control system identies the

operating days, verifying the burner activity time. Proceed as follows to activate the call service:

1.- access the Installer menu (see chapter 7.10)and set parameter 2080 on 0n;

2.- access parameter 2081 and set the appliance operating days which must pass between one call and the next.

The call will be completed with SEr on the display. To remove the wording SEr and renew the call period,

operate as follows:

1.- access the “Installer menu”;

2.- access the parameter 2080, set it on rESE and press the RESET key.

3.- exit the Installer menu by pressing the RESET key for 5 seconds.

The call time is now renewed and SEr appears on the display.

ATTENTION !!! Appliance maintenance must

only be performed by a professionally qualied

technician.

ATTENTION !!! Before every maintenance

operation, disconnect the appliance from the electric power supply, using the relevant switch in the vicinity.

ATTENTION !!! Close the gas isolation valve

before any maintenance operation

8 - MAINTENANCE

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Figure 8.1 - removing the casing and opening of command board

8.2 - Casing removal

Proceed as follows to remove the casing (refer to gure

8.1):

1.- pull the lower cover “A” towards the front for approx. 10mm

2.- push the lower cover “A” downwards;

3.- loosen the screws “H”;

4.- pull the lower part of the front-piece “B” towards the front and then slide it out upwards until it is released from the guides “C”;

To access the command and control board:

1.- turn the command board “D” towards the front;

2.- open the commands board “D” by operating on closure “G”;

To access the electric connections board:

1.- turn the command board “D” towards the front;

2.- slide lid “E” out by operating on the “F” closing aps;

020003.01.018

8 - MAINTENANCE

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8 - MAINTENANCE

8.3 - Burner and fan removal

Proceed as follows to remove the burner fan unit (refer to

gure 8.2 when not differently specied):

1.- access the internal components following chapter 8.2;

2.- remove the air manifold (detail “C” in gure 6.2) rotating

it towards the outside of the appliance and then pulling it

towards the right (see gure 6.2);

3.- unscrew nut “C” from the valve “D”;

4.- disconnect the cables “B” and the detection cable from the ignition and detection electrodes (details “15”, “34”

and “35” of gure 3.1);

5.- unscrew the four nuts “E”;

6.- extract the group “F” as per gure;

Figure 8.2 - Removing the burner fan unit

020003.01.024

8.4 - Gas burner and heat exchanger outer surface cleaning procedure

To correctly clean the burner and body of the heat

exchanger (exhaust ue side), proceed as follows (refer to gure 8.2 when not differently specied):

1.- access the internal components following paragraph 8.2;

2.- remove the burner unit following chapter 8.3;

3.- pass a cylindrical brush with plastic bristles inside the combustion chamber

4.- use a suction device to remove the unburned residues present inside the combustion chamber;

5.- use the same suction device on the surfaces of the burner and around the electrodes;

6.- re-mount the components in reverse order;

7.- open the gas isolation valve;

8.- restore the electric power supply.

9.- check that there are no gas leaks on all internal joints;

ATTENTION!!! Perform the leak test using a soap

and water only. The use of naked ames is prohibited.

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8.5 - Condensate siphon

cleaning procedure

For correct cleaning of the collection siphon and the conveying of the condensate produced by combustion,

operate as follows (refer to the gures 8.3, 8.4 and 8.5):

1.- with the appliance on, open a domestic hot water tap or taps fully to force the burner to its maximum power and the level of the liquid present inside the siphon tank “D”

lowers (see gure 8.4);

2.- access the internal components following paragraph 8.2;

3 - remove the burner fan unit following paragraph 8.3; 4 - cover the electric plant with a cloth to protect it from any

residues of water inside the siphon to be removed.

5.- slide the support “C” outwards from the holding support;

6.- slide the tank “D” downwards, paying attention to the fact that it is full of condensate water and this could escape;

7.- extract the siphon outwards (see gure 8.6) paying

attention to disconnect the collection pipes of the water coming from the upper part of the appliance and from the air vent valve.

8.- clean the decanting tank “D”;

9.- re-mount everything in reverse order, paying attention to the gasket “E”, which is put back in the relevant seat and that terminal “G” is introduced correctly in the seat “H”;

10.- restore the level of liquid inside the siphon following the procedure in chapter 6.1.2.

Figure 8.4 - Removing condensate collection siphon

Figure 8.5 - Condensate collection siphon

020002.01.030

8 - MAINTENANCE

Figure 8.3 - Removal of the condensate collection siphon

020003.01.027

020003.01.029

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8.6 - Ignition and ame

isonising electrode position

For good working order of the appliance, it is indispensable

that the electrodes are positioned correctly (refer to gure

8.6):

- the distance between the ignition electrodes “A” and “B”, must be between 2.0 and 2.5 mm;

- the distance between the ignition electrodes from the burner surface must be between 5 and 5.5 mm;

- the distance of the ionisation electrode “C” from the surface of the burner must be between 5.5 and 6.5 mm.

Figure 8.7 - Replacing the pump motor

020003.01.026

8 - MAINTENANCE

Figure 8.6 - positioning the electrodes on the burner

8.7 - Circulation pump

replacement procedure

Operate as follows if the pump must be replaced (refer to

gure 8.7):

1.- empty the domestic hot water circuit, following the procedure in chapter 8.10;

2.- disconnect the electric power supply upstream from the appliance;

3.- access the components inside the appliance, following paragraph 8.2;

4.- disconnect the electric cables from the pump body.

5.- loosen the screws “A”;

6.- extract the pump “B” outwards and replace it.

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Figure 8.8 - Removing the ow meter

020003.01.036

8.8 - Domestic water ow meter

replacement procedure

Proceed as follows, making reference to gure 8.8:

1.- empty the domestic hot water circuit, following the procedure in paragraph 8.10;

2.- disconnect the electric power supply upstream from the appliance;

3.- access the components inside the appliance, following paragraph 8.2;

4.- disconnect the cables from the ow meter (detail “B” in gure 8.8);

5.- unscrew the small disks “A”, paying attention that the residual water from the pipes does not reach the control board;

6.- slide the ow meter “B” upwards and replace it.

Figure 8.9 - Removing the safety valve

020003.01.034

8 - MAINTENANCE

8.9 - Safety valve

replacement procedure

The safety valve (detail “A” in gure 8.9) protects the

appliance from over pressures. If it has to be replaced,

proceed as follows (refer to gure 8.9):

1.- empty the domestic hot water circuit, following the procedure in paragraph 8.10;

2.- access the components inside the appliance, following paragraph 8.2;

3.- disconnect the drain pipe from the valve to be replaced “A”;

4.- unscrew the lower xing disk of valve “A”;

5.- extract the safety valve “A” upwards;

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Figure 8.10 - Water sensors curve

8 - MAINTENANCE

8.10 - Procedure for draining the water heater

To empty the appliance from the domestic hot water side, proceed as follows:

1.- close the main cold water supply isolation valve;

2.- open all hot and cold water taps;

3.- make sure that at least one of these is at a height below the level of the appliance.

8.11 - Fan test mode procedure

Switch-on of the fan only can be generated, accessing the parameter 2010 situated inside the “Installer menu” (see chapter 7.10) and set it on FAn. To go back to normal operating conditions, set parameter 2010 again to 0FF.

8.12 - Gas burner minimum

and maximum performance test mode procedure

Appliance operation can be forced to its own minimum, maximum, adjusted or ignition power. Proceed as follows:

1.- access parameter 2010 found in the “installer menu” (see chapter 7.10);

2.- set the parameter 2010 at the following value: a) LOu to force the appliance to minimum power; b) Ign to force the appliance to ignition power; a) HIgH to force the appliance to maximum power; a) rEg to force the appliance to maximum power.

4.- to end forcing, take the parameter 2010 to the 0FF

value and press the RESET key.

8.13 - Checking the ionisation current

In any operating status, also during verications of minimum

and maximum power stated in paragraph 8.12, the ionisation current value can be consulted on parameter 1008 present

in the “User menu” (table 7.9). This value must be between

1.5 and 3 uA (microampere) at minimum power and between 5 and 8 uA at maximum power.

8.14 - Water temperature measurement sensor testing procedures

The temperature sensors are positioned on the appliances’ exchanger body. The electric resistance existing between the two contacts of the sensor, must correspond with that

stated in gure 8.10.

The temperature sensors are: 1001, 1002, 1003,

1005, 1006, 1007 and 1014, the positioning of

which can be veried in gure 3.1.

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8.15 - AGUADENS models 16, 22 and 27 electrical connections

Figure 8.11 - Operational wiring diagram

ATTENTION !!! To consult

the wiring diagram correctly, references K are given followed by a number (see example above) to identify the correct followon of the cables in the next page.

8 - MAINTENANCE

1001 - D.H.W. outlet temperature sensor 1 1002 - D.H.W. outlet temperature sensor 1002 (SB) - Storage tank sensor (on request) 1005 - D.H.W. outlet temperature safety sensor 2

1006 - Exhaust ue sensor 1

1007 - Cold water inlet sensor

1014 - Exhaust ue safety sensor 2 CM - Appliance control unit and ame control

DSP - Display DSPX - Remote control (on request) EA - Ignition electrode ER - Detection electrode

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8 - MAINTENANCE

F (Digital) - Digital fan F (BCU) - 5A fuse F1 (SDC) - 1.6A power supply fuse PB - Storage tank load aux. pump (on request) PR - Recirculation Pump GS - Spark generator IG - Master switch J1 - 8 pin Molex connector J12- 6 pin Molex connector J2 - 6 pin Molex connector J26- 4 pin Molex connector J3 - 10 pin Molex connector J4 - 6 pin Stelvio connector

J5 - 4 pin Molex connector J6 - 14 pin Molex connector J7- 10 pin Molex connector J9- 4 pin Molex connector PB - Storage tank pump (on request) PS - Pressure sensor (present only in mod. 27) SDC- Connection board

TU - Domestic hot water ow meter

VG1- Gas Valve

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8.16 - AGUADENS models 16, 22 and 27 internal multi-core wiring diagram

Figure 8.12 - Multi-core colours wiring diagram

Key - see key gure 8.11

8 - MAINTENANCE

COLOR OF DIAGRAM CABLE ARANCIO = ORANGE BIANCO = WHITE BLU = BLUE GIALLO = YELLOW GIALLO/VERDE = YELLOW/GREEN GRIGIO = GREY MARRONE = BROWN NERO = BLACK ROSSO = RED VERDE = GREEN

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8 - MAINTENANCE

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8.17 - AGUADENS model 37 electrical connections

Figure 8.13 - Operational wiring diagram

8 - MAINTENANCE

ATTENTION !!! To consult

the wiring diagram correctly, references K are given followed by a number (see example above) to identify the correct followon of the cables in the next page.

1001 - D.H.W. outlet temperature sensor 1 1002 - D.H.W. outlet temperature sensor 1002 (SB) - Storage tank sensor (on request) 1005 - D.H.W. outlet temperature safety sensor 2

1006 - Exhaust ue sensor 1

1007 - Cold water inlet sensor

1014 - Exhaust ue safety sensor 2 CM - Appliance control unit and ame control

DSP - Display DSPX - Remote control (on request) EA - Ignition electrode ER - Detection electrode

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8 - MAINTENANCE

F (PWM) - PWM Fan F (BCU) - 5A fuse F1 (SDC) - 1.6A power supply fuse PB - Storage tank load aux. pump (on request) PR - Recirculation Pump GS - Spark generator IG - Master switch J1 - 8 pin Molex connector J12- 6 pin Molex connector J2 - 6 pin Molex connector J26- 4 pin Molex connector J3 - 10 pin Molex connector J4 - 6 pin Stelvio connector

J5 - 4 pin Molex connector J6 - 14 pin Molex connector J7- 10 pin Molex connector J9- 4 pin Molex connector PB - Storage tank pump (on request) PS - Pressure sensor SDC- Connection board

TU - Domestic hot water ow meter

VG1- Gas Valve

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8.18 - AGUADENS model 37 multi-core wiring diagram

Figure 8.14 - Multi-core wiring loom diagram

Key - see key gure 8.13

8 - MAINTENANCE

COLOR OF DIAGRAM CABLE ARANCIO = ORANGE BIANCO = WHITE BLU = BLUE GIALLO = YELLOW GIALLO/VERDE = YELLOW/GREEN GRIGIO = GREY MARRONE = BROWN NERO = BLACK ROSSO = RED VERDE = GREEN

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8 - MAINTENANCE

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TECHNICAL DATA UM AGUADENS 16 AGUADENS 22

Type (Type of exhaust ue/combustion air intake) B23;C13;C33;C43;C53;C63;C83

Category II2H3P II2H3P

CE type certicate (PIN) 0694CN6126 0694CN6126

Max. heat input kW 25,5 34,8

Min. heat input kW 3,2 4,4

Max. useful heat output kW 27,5 37,6

Efciency at max heat output % 108 108

Min. heat output kW 3,97 4,35

Efciency at min heat output % 109 109

Gas ow rate

Nat gas m

/h 2,70 3,68

LP gas Kg/h 1,98 2,70

Gas supply pressure

Nat gas mbar 20 20

LP gas mbar 37 37

Gas supply minimum pressure

Nat gas mbar 15 15

LP gas mbar 25 25

Gas supply maximum pressure

Nat gas mbar 27 27

LP gas mbar 45 45

Combustion air intake pressure

Nat gas mbar 13,2 12,3

LP gas mbar 13,8 11,2

Instantaneous D.H.W. adjustment range °C 40-60 40-60

D.H.W. with storage tank adjustment range °C 40-70 40-70

Domestic circuit maximum pressure bar 7 7

Rated power supply voltage V 230 230

Rated power supply frequency Hz 50 50

Absorbed electric power W 120 120

Electric protection rating IPX4D IPX4D

Exhaust ue pipe diameter (split) mm 80 o 60 80 o 60

Exhaust ue pipe max. length (split) (80) m 40 25

Exhaust ue pipe max. length (split) (60) m 15 10

Exhaust ue pipe diameter (coaxial) mm 60/100 60/100

Exhaust ue pipe max. length (coaxial) m 10 10

Equivalent length of a bend m 45° bend = 0.5m, 90° bend =1m

Weighted CO (0% O2 with natural gas) ppm 8 15

Weighted NOx (0% O2 with natural gas) (class 5 EN 483 and 297) ppm 13 17

CO2 (%) at minimum/maximum power

Nat gas % 8,5/9,0 8,5/9,0

LP gas % 10/10,5 10/10,5

Exhaust ue gas maximum temperature at appliance outlet °C 75 75

Mass ow rate of exhaust ue gases kg/h 25,4 42,3

Head available at exhaust ue outlet Pa 60 60

Exhaust ue gas maximum temperature for overheating °C 90 90

Max. negative pressure avaiable in combined exhaust ue/combustion air

intake system

Pa 60 60

Condensate maximum ow rate l/h 1,9 3,2

Condensate average acidity PH 4 4

Operating environment temperature °C 0 ; +50 0 ; +50

Weight of the appliance kg 36 36

9 - TECHNICAL DATA

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9 - TECHNICAL DATA

TECHNICAL DATA UM AGUADENS 27 AGUADENS 37

Type (Type of exhaust ue/combustion air intake) B23;C13;C33;C43;C53;C63;C83

Category II2H3P II2H3P

CE type certicate (PIN) 0694CN6126 0694CN6126

Max. heat input kW 43,0 57,8

Min. heat input kW 8,5 12,0

Max. useful heat output kW 46,4 61,9

Efciency at max heat output % 107 107

Min. heat output kW 9,2 13,0

Efciency at min heat output % 108 108

Gas ow rate

Nat gas m

/h 4,50 6,10

LP gas Kg/h 3,30 4,50

Gas supply pressure

Nat gas mbar 20 20

LP gas mbar 37 37

Gas supply minimum pressure

Nat gas mbar 15 15

LP gas mbar 25 25

Gas supply maximum pressure

Nat gas mbar 27 27

LP gas mbar 45 45

Combustion air intake pressure

Nat gas mbar 9,6 10,9

LP gas mbar 8,5 10,6

Instantaneous D.H.W. adjustment range °C 40-60 40-60

D.H.W. with storage tank adjustment range °C 40-70 40-70

Domestic circuit maximum pressure bar 7 7

Rated power supply voltage V 230 230

Rated power supply frequency Hz 50 50

Absorbed electric power W 140 140

Electric protection rating IPX4D IPX4D

Exhaust ue pipe diameter (split) mm 80 80

Exhaust ue pipe max. length (split) (80) m 10 8

Exhaust ue pipe max. length (split) (60) m / /

Exhaust ue pipe diameter (coaxial) mm 60/100 80/125

Exhaust ue pipe max. length (coaxial) m 4 10

Equivalent length of a bend m 45° bend = 0.5m, 90° bend =1m

Weighted CO (0% O2 with natural gas) ppm 25 25

Weighted NOx (0% O2 with natural gas) (class 5 EN 483 and 297) ppm 30 30

CO2 (%) at minimum/maximum power

Nat gas % 8,5/9,0 8,5/9,0

LP gas % 10/10,5 10/10,5

Exhaust ue gas maximum temperature at appliance outlet °C 75 75

Mass ow rate of exhaust ue gases kg/h 58,9 99,0

Head available at exhaust ue outlet Pa 60 60

Exhaust ue gas maximum temperature for overheating °C 90 90

Max. negative pressure avaiable in combined exhaust ue/combustion air

intake system

Pa 60 60

Condensate maximum ow rate l/h 4,4 7,2

Condensate average acidity PH 4 4

Operating environment temperature °C 0 ; +50 0 ; +50

Weight of the appliance kg 37 40

Page 68

AGUADENS

COSMOGAS

10 - COMMAND MENU DIAGRAM

Symbol Description

Press and release the RESET key

Hold the reset key down for a time in seconds, indicated by the number (2)

Hold the reset key down for a time in seconds, indicated by the number (5)

Hold down the RESET and key simultaneously for a time in seconds, indicated by the number

Press and release the key

Pa rameters th at can be displayed in normal operating conditions (see chapter 7.11)

Use menu parameters (see chapter 7.9)

Installer menu parameters (see chapter

7.10)

Installer menu parameters (see chapter

7.10)

Us e me nu acce ss (see chapter 7.9)

Installer menu access (see chapter 7.10)

Return to normal operation

Figure 10.1 - Command menu diagram

Key for gure 10.1

Page 69

AGUADENS

COSMOGAS

ATTENTION !!!

The modication of these parameters could cause the appliance, and therefore the plant, to malfunction.

For this reason only a technician that has the awareness and in-depth knowledge of the appliances can modify them.

To access this menu, move the microswitch as stated in gure 6.5 detail “B”.

11 - ENGINEERS TEST MODE

Parameter Parameter Description M.U. Setting range

Factory value

Customised

value

3002 Selection type From 50 to 55 See gure 6.7

3012

Domestic hot water operating mode

0 = DO NOT USE; 1 = Storage tank with temperature sensor; 2 = Storage tank with thermostat; 3 = DO NOT USE; 4 = DO NOT USE; 5 = Instantaneous with turbine;

3013 No function / / /

3014

Instantaneous domestic hot water pre-heat

OFF = No pre-heat ON = With pre-heat OFF

OFF

3015

No function

/ / / /

3016

No function

/ / / /

3020

Domestic hot water ow rate

sensor

0 = B; 1 = DN 8; (AGUADENS 16) 2 = DN 10; 3 = DN 15; (AGUADENS 22, 27 and 37) 4 = DN 20; 5 = DN 25;

3021 2nd Exhaust ue sensor (1014) /

0 = Disabled; 1 = Enabled;

2 = Enabled with exhaust ue anti-closure

pressure switch;

3022 No function / / / 3033

No function

/ / /

3034

No function

/ / /

3035

No function

/ / /

3036

No function

/ / /

3052

No function

/ / /

Page 70

AGUADENS

COSMOGAS

The undersigned COSMOGAS S.r.L., with Registered Ofce in via L. Da Vinci n° 16 - 47014 Meldola (FC) ITALY,

DECLARES

under its own responsibility that the project:

subject of this declaration, is in compliance with the model described in the

Type examination certicate , whose reference is given in the table in

chapter 9 under “CE type certicate (PIN)” and meeting that required by the

Directives: Gas Appliances, (2009/142/CE former 90/396/CEE), Low Voltage,

(2006/95/CE), Electromagnetic Compatibility,

(2004/108/CEE).

(the warranty number corresponds to the serial number)

This declaration is issued for that established by the above-mentioned Directives.

Meldola (FC) ITALY, (Date of manufacture).

DATE OF MANUFACTURE

WARRANTY N°

GAS APPLIANCE MODEL

12 - CE DECLARATION OF CONFORMITY

Page 71

AGUADENS

COSMOGAS

13 - WARRANTY

13.1 - General warranty conditions

All COSMOGAS products are guaranteed against material

aws and manufacturing defects for 24 months from the date of commissioning, COSMOGAS also extends the warranty to :

SHELL AND TUBE HEAT EXCHANGER BODIES, CRR and CRV guaranteed up to 5 years;

PRE-MIXED BURNERS guaranteed up to 10 years;

ATMOSPHERIC BURNERS guaranteed up to 15 years.

This warranty extension will only be valid if COSMOGAS

has received the warranty card, lled-in completely, which

will certify the date of commissioning. Within the abovementioned term COSMOGAS commits to repairing or replacing the faulty construction parts and which will be acknowledged as such with exclusion of normal deterioration due to operations. The extension of the warranty exclusively covers the cost of the spare part. All other accessory costs are excluded, such as: labour, transfer costs and expenses for transporting material. The warranty does not extend to the recasting of the damage, of any nature, that has happened to persons or property. The faulty material replaced under warranty is the property of COSMOGAS and must be returned to our establishment, without further damage, within 30 days from replacement. All COSMOGAS products are encumbered by the title retention agreement, until the appliance sold have been paid in full.

13.2 - Instructions for lling-

in the warranty card

1. - Have your installer put his stamp on the warranty

certicate.

2. - Always request the intervention of our authorised technician for commissioning and to validate the warranty;

To validate the warranty, the technician must control:

1. - Gas pressure at the burner (or combustion agent air pressure for pre-mixed and condensing appliances);

2. - Water leaks;

3. - Gas leaks;

The list of authorised technicians is found attached to the instruction manual or can be found in the Yellow Pages under “Gas water heater”.

 The technician will take the warranty certicate and

deliver it to COSMOGAS.

13.3 - Warranty limitations

The warranty is not valid:

- if the appliance is installed by non-qualied staff;

- if the appliance is installed in a way that is not in compliance with the COSMOGAS instructions and/or that established by the current national and/local regulations;

- whenever the plant is not run/services in compliance with the instructions and/or the current national and local regulations.

- whenever the product has damage caused by changes in voltage;

- whenever the product has damaged caused by the use of excessively hard water, or which is too acid or too oxygenated;

- whenever the product has failures caused by heat shocks, abnormalities of chimneys and/or exhaust and intake pipes;

- whenever the product has anomalies not depending on COSMOGAS;

- whenever the appliances have been tampered with for adaptation, repairs or replacement with non-original spare parts;

- whenever repairs are performed by unauthorised staff.

- Whenever the warranty certicate is not sent

to COSMOGAS within 15 days from the date 1° commissioning.

COSMOGAS does not assume any responsibility for any accident that may occur or be caused by the user, precluding any compensation that does not concern appliance parts recognised as defective manufacturing.

Any dispute is the jurisdiction of the Forlì Law Court, ITALY.

Page 72

COSMOGAS s.r.l.

Via L. da Vinci 16 - 47014

MELDOLA (FC) ITALY

info@cosmogas.com

www.cosmogas.com

COSMOGAS AGUADENS Installation, Operating And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual