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CONDENSING WALL-HUNG GAS BOILER

Country of Destination: GB/IE

INSTALLATION AND SERVICING INSTRUCTIONS

HOT WATER HEATING RENEWABLES I I

G.C.N.: (30 kW)47-116-91

G.C.N.: (35 kW)47-116-92

Including

CUBE Room Sensor

wireless

ALTEAS ONE Net

INDEX

Overview ............................................................................................3

General Information ........................................................................4

Advice for the Installer....................................................................4

CE Labelling ......................................................................................4

Data Plate Symbols .........................................................................4

Safety Regulations ..........................................................................5

Product description ........................................................................7

Control Panel ....................................................................................7

Display ................................................................................................8

Overall View ......................................................................................8

Overall Dimension ...........................................................................9

Minimum Clearances ......................................................................9

Installation ......................................................................................10

Reference Standards .................................................................... 10

Installing the Boiler ........................................................................ 13

Gas Connection .............................................................................. 14

Water Connection .......................................................................... 14

Instructions for Opening the Casing and Performing an

Internal Inspection .................................................................... 14

Underﬂ oor heating ........................................................................ 15

Water circuit diagram ....................................................................16

Connecting the Flue ...................................................................... 17

Fitting the Coaxial Flue (Ø 60/100 Horizontal) ...................... 18

Fitting the 5” Flue (Ø 80/125 Horizontal / Vertical) ...............19

Fitting the Coaxial Flue (Ø 60/100 Vertical) ...........................20

Fitting the Twin Pipe (Ø 80/80) ...................................................21

Electrical Connections .................................................................24

Peripheral Unit Connection ........................................................ 24

Room Thermostat Connection ...................................................25

Electrical Diagram ........................................................................ 26

Commissioning ............................................................................. 27

Initial Preparation .......................................................................... 27

Electricity Supply .......................................................................... 27

Filling the Heating System ......................................................... 27

Filling of the DHW System .......................................................... 27

Gas Supply ..................................................................................... 27

Water Treatment ............................................................................ 27

Start-up procedure ........................................................................29

First ignition

(deaeration cycle and automatic calibration ........................ 29

Maximum heating power adjustment ...................................... 33

Checking slow ignition power ................................................... 33

Heating ignition delay adjustment ........................................... 33

Table summarising changes ...................................................... 33

Gas changeover ............................................................................ 34

AUTO Function ............................................................................... 35

Boiler Protection Devices ..........................................................36

Boiler Protection Devices............................................................36

Table summarising error codes ................................................. 37

Anti-Frost Device ........................................................................... 37

Technical Area .............................................................................. 38

Accessing the Menus ...................................................................38

Maintenance ..................................................................................45

General Comments ......................................................................45

Operational Test ............................................................................ 45

Draining procedures.....................................................................45

Cleaning the primary exchanger .............................................. 45

Cleaning the trap .......................................................................... 46

Maintenance Guide ..................................................................... 47

General Access ............................................................................. 47

Electrical Unit .................................................................................48

Hydraulic Unit ................................................................................50

Burner Unit ......................................................................................60

Annual Maintenance .................................................................... 64

Technical Information ................................................................. 66

Technical Data GENUS ONE NET .............................................66

ERP Data GENUS ONE NET ....................................................... 67

Product ﬁ che GENUS ONE NET ................................................68

Product ﬁ che CUBE WIFI ............................................................68

Package Label - Instuctions to ﬁ lling ....................................... 69

Package ﬁ che ................................................................................ 70

Benchmark Commissioning Checklist .................................... 73

Benchmark Service Interval Record ........................................ 74

/ 3

OVERVIEW

These instructions are suitable for Alteas One Net boilers :

Do not forgot to complete the Benchmark Commissioning Checklist!

The Benchmark Scheme

Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers

are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in

accordance with the manufacturer’s instructions by competent persons and that it meets the requirements of

the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with

Building Regulations and should be provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work in accordance with the

Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage

and promote the Scheme. Visit www.centralheating.co.uk for more information.

To The Installer

As part of the commissioning of this appliance it is vital that the Benchmark Commissioning Checklist is completed and

given to the Householder. Please ensure that your customer is aware of the importance of keeping the Commissioning

Checklist and Service Interval Record safe to document the product’s history.

Please ensure that your customer is aware of the correct operation of the system, boiler and controls.

ARISTON recommend the use of protective clothing, when installing and working on the appliance i.e. gloves.

CUSTOMER CARE

ARISTON, as a leading manufacturer of domestic and commercial water heating appliances is committed to providing

high quality products and a high quality after sales service.

Advice on installation or servicing can also be obtained by contacting the ARISTON Technical and Customer Service

Departments at High Wycombe.

TECHNICAL DEPARTMENT CUSTOMER SERVICE DEPARTMENT

Tel: 0333 240 7777 Tel: 0333 240 8777

Fax: 01494 459775 Fax: 01494 459775

WARRANTY

The manufacturer’s warranty is for 12 years from the date of purchase. The warranty is invalidated if the appliance is

not installed in accordance with the recommendations made herein or in a manner not approved by the manufacturer.

To assist us in providing you with an efﬁ cient after sales service, please register the warranty online at www.ariston.

co.uk

CAUTION

In the United Kingdom, installation, start-up, adjustments and maintenance, must be performed by a competent person

only, in accordance with the current Gas Safety (Installation & Use) Regulations and the instructions provided.

In the Republic of Ireland, the installation and initial start up of the appliance must be carried out by a Competent

Person in accordance with the current edition of I.S.813 “Domestic Gas Installations”, the current Buidling Regulations,

reference should also be made to the current ETCI rules for electrical installation.

All GAS SAFE registered installers carry a GAS SAFE ID card, and have a registration number. Both should be

recorded in your boiler Benchmark Commissioning Checklist. You can check your installer is GAS SAFE registered

by calling GAS SAFE directly on:- 0800 408 5500.

Improper installation may cause damage or injury to individuals, animals and personal property for which the

manufacturer will not be held liable. To ensure efﬁ cient and safe operation it is recommended that the boiler is serviced

annually by a competent person.

If it is known that a fault exists on the appliance, it must not be used until the fault has been corrected by a competent

person.

Please refer to the terms and conditions of warranty in the user manual which are also available on our website.

This instruction booklet is especially designed for appliances installed in the UK and the Republic of Ireland

4 /

OVERVIEW

CE labelling

The CE mark guarantees that the appliance conforms to the

following directives:

- 2016/426/EU

relating to gas appliances

- 2014/30/EU

relating to electromagnetic compatibility

- 92/42/CEE

relating to energy efﬁ ciency

- 2014/35/EU

relating to electrical safety

- 2009/125/CE

Energy related Products

- 813/2013

Commission regulation (EU)

Advice for the installer

This appliance is designed to produce hot water for domestic

use.

It should be connected to a heating system and a distribution

network for domestic hot water, both of which must be compatible

with its performance and power levels.

The use of the appliance for purposes other than those

speciﬁ ed is strictly forbidden. The manufacturer cannot be held

responsible for any damage caused by improper, incorrect and

unreasonable use of the appliance or by the failure to comply

with the instructions given in this manual.

Installation, maintenance and all other interventions must be

carried out in full conformity with the governing legal regulations

and the instructions provided by the manufacturer. Incorrect

installation can harm persons, animals and possessions; the

manufacturing company shall not be held responsible for any

damage caused as a result. The boiler is delivered in a carton.

Once you have removed all the packaging, make sure the

appliance is intact and that no parts are missing. If this is not the

case, please contact your supplier.

Keep all packaging material (clips, plastic bags, polystyrene foam,

etc.) out of reach of children as it may present a potential hazard.

In the event of a fault and/or malfunction, turn the appliance

off, turn off the gas cock and do not attempt to repair it yourself.

Contact a qualiﬁ ed professional instead.

Before any maintenance or repair work is performed on the

boiler, make sure you have disconnected it from the electricity

supply by switching the external bipolar switch to the “OFF”

position and removing the fuse.

All repairs, which should only be performed using original spare

parts, should be carried out by a qualiﬁ ed professional. Failure

to comply with the above instructions could compromise the

safety of the appliance and invalidate all liability on the part of

the manufacturer.

In the event of any maintenance or other structural work in the

immediate vicinity of the ducts or ﬂ ue gas exhaust devices and

their accessories, switch the appliance off by switching the

external bipolar switch to the “OFF” position and shutting off the

gas control valve. When the work has been completed, ask a

Symbols used on the data plate

MIN

60/80° C

10 11

16 17 18

Legend :

1. Brand

2. Manufacturer

3. Boiler model

Serial number

4. Commercial reference

5. Certiﬁ cation number

6. Destination country

Gas category

7. Gas setting

8. Installation type

9. Electrical data

10. Maximum domestic hot

water pressure

11. Maximum heating pressure

12. Boiler type

13. NOx class / Efﬁ ciency

14. Input rating nominal

heating

15. Power ouput heating

16. DHW speciﬁ c ﬂ ow rate

17. Boiler output efﬁ ciency

18. Input rating nominal DHW

19. Gases which may be used

20. Minimum ambient

temperature for use

21. Max. central heating

temperature

22. Max. domestic hot water

temperature

ATTENTION!!

THE INSTALLATION AND FIRST

IGNITION OF THE BOILER MUST BE

PERFORMED BY GAS SAFE REGISTERED

ENGINEER IN COMPLIANCE WITH

GAS SAFETY (INSTILLATION & USE)

REGULATIONS AND ALL OTHER NATIONAL

REGULATIONS REGARDING INSTALLATION,

AND IN CONFORMITY WITH ANY

REQUIREMENTS ESTABLISHED BY LOCAL

AUTHORITIES AND PUBLIC HEALTH

ORGANISATIONS.

AFTER THE BOILER HAS BEEN INSTALLED,

THE INSTALLER MUST ENSURE THAT THE

END USER RECEIVES THE DECLARATION

OF CONFORMITY AND THE OPERATING

MANUAL, AND SHOULD PROVIDE ALL

NECESSARY INFORMATION AS TO HOW

THE BOILER AND THE SAFETY DEVICES

SHOULD BE HANDLED.

qualiﬁ ed technician to check the efﬁ ciency of the ducting and

the devices.

Turn the boiler off and turn the external switch “OFF” to clean

the exterior parts of the appliance.

Clean using a cloth dampened with soapy water. Do not use

aggressive detergents, insecticides or toxic products. If the

appliance is used in full compliance with current legislation, it

will operate in a safe, environmentally-friendly and cost-efﬁ cient

manner.

If using kits or optional extras, make sure they are authentic.

/ 5

OVERVIEW

Install the appliance on a solid wall which is not

subject to vibration.

Noisy operation.

When drilling holes in the wall for installation

purposes, take care not to damage any electrical

wiring or existing piping.

Electrocution caused by contact with live

wires. Explosions, ﬁ res or asphyxiation caused

by gas leaking from damaged piping.

Damage to existing installations.

Flooding caused by water leaking from

damaged piping.

Perform all electrical connections using wires

which have a suitable section.

Fire caused by overheating due to electrical

current passing through undersized cables.

Protect all connection pipes and wires in order to

prevent them from being damaged.

Electrocution caused by contact with live

wires. Explosions, ﬁ res or asphyxiation caused

by gas leaking from damaged piping.

Flooding caused by water leaking from

damaged piping.

Make sure the installation site and any systems

to which the appliance must be connected comply

with the applicable norms in force.

Electrocution caused by contact with live wires

which have been installed incorrectly.

Damage to the appliance caused by improper

operating conditions.

Use suitable manual tools and equipment (make

sure in particular that the tool is not worn out

and that its handle is ﬁ xed properly); use them

correctly and make sure they do not fall from

a height. Replace them once you have ﬁ nished

using them.

Personal injury from the falling splinters or

fragments, inhalation of dust, shocks, cuts,

pricks and abrasions.

Damage to the appliance or surrounding

objects caused by falling splinters, knocks and

incisions.

Use electrical equipment suitable for its intended

use (in particular, make sure that the power

supply cable and plug are intact and that the

parts featuring rotary or reciprocating motions

are fastened correctly); use this equipment

correctly; do not obstruct passageways with the

power supply cable, make sure no equipment

could fall from a height. Disconnect it and replace

it safely after use.

Personal injury caused by falling splinters

or fragments, inhalation of dust, knocks,

cuts, puncture wounds, abrasions, noise and

vibration.

Damage to the appliance or surrounding

objects caused by falling splinters, knocks and

incisions.

Make sure any portable ladders are positioned

securely, that they are suitably strong and that

the steps are intact and not slippery and do not

wobble when someone climbs them. Ensure

someone provides supervision at all times.

Personal injury caused by falling from a height

or cuts (stepladders shutting accidentally).

Make sure any rolling ladders are positioned

securely, that they are suitably strong, that the

steps are intact and not slippery and that the

ladders are ﬁ tted with handrails on either side of

the ladder and parapets on the landing.

Personal injury caused by falling from a height.

During all work carried out at a certain height

(generally with a difference in height of more

than two metres), make sure that parapets are

used to surround the work area or that individual

harnesses are used to prevent falls. The space

where any accidental fall may occur should be

free from dangerous obstacles, and any impact

upon falling should be cushioned by semi-rigid or

deformable surfaces.

Personal injury caused by falling from a height.

Make sure the workplace has suitable hygiene

and sanitary conditions in terms of lighting,

ventilation and solidity of the structures.

Personal injury caused by knocks, stumbling

etc.

Protect the appliance and all areas in the vicinity

of the work place using suitable material.

Damage to the appliance or surrounding

objects caused by falling splinters, knocks and

incisions.

SAFETY REGULATION

Key to symbols:

Failure to comply with this warning

implies the risk of personal injury, in some

circumstances even fatal

Failure to comply with this warning

implies the risk of damage, in some

circumstances even serious, to property,

plants or animals.

6 /

OVERVIEW

Handle the appliance with suitable protection

and with care.

Damage to the appliance or surrounding

objects from shocks, knocks, incisions and

squashing.

During all work procedures, wear individual

protective clothing and equipment.

Personal injury caused by electrocution, falling

splinters or fragments, inhalation of dust,

shocks, cuts, puncture wounds, abrasions,

noise and vibration.

Place all debris and equipment in such a way

as to make movement easy and safe, avoiding

the formation of any piles which could yield or

collapse.

Damage to the appliance or surrounding

objects from shocks, knocks, incisions and

squashing.

All operations inside the appliance must be

performed with the necessary caution in order to

avoid abrupt contact with sharp parts.

Personal injury caused by cuts, puncture

wounds and abrasions.

Reset all the safety and control functions

affected by any work performed on the appliance

and make sure they operate correctly before

restarting the appliance.

Explosions, ﬁ res or asphyxiation caused by

gas leaks or an incorrect ﬂ ue gas exhaust.

Damage or shutdown of the appliance caused

by out-of-control operation.

Before handling, empty all components that

may contain hot water, carrying out any bleeding if

necessary.

Personal injury caused by burns.

Descale the components, in accordance

with the instructions provided on the safety

data sheet of the product used, airing the

room, wearing protective clothing, avoid mixing

different products, and protect the appliance and

surrounding objects.

Personal injury caused by acidic substances

coming into contact with skin or eyes; inhaling

or swallowing harmful chemical agents.

Damage to the appliance or surrounding

objects due to corrosion caused by acidic

substances.

This appliance can be used by children

aged from 8 years and above and

person with reduced physical, sensory

or mental capabilities or lack of experience

and knowledge if they have been given

supervision or instruction concerning use of

the appliance in a safe way and understand

the hazards involved. Children shall not

play with the appliance. Cleaning and user

maintenance shall not be made by children

without supervision.

If you detect a smell of burning or smoke, keep

clear of the appliance, disconnect it from the

electricity supply, open all windows and contact

the technician.

Personal injury caused by burns, smoke

inhalation, asphyxiation.

/ 7

PRODUCT DESCRIPTION

26/10/15

1,5 bar

AUTO

Central Heating

COMFORT

12:30

40° 70°

10°

20,5° 3

00 02 04 06 08 10 12 14 16 18 20 22 24

1 2 3 4

98 10 11

CONTROL PANNEL

Legend:

1. Display

2. WIFI button

(enable / disable / conﬁ gure)

3. Domestic Hot Water adjustment button +/-

4. MODE button

(Operation mode selection summer/winter)

5. COMFORT button

6. ON/OFF button

7. Auto button (To activate Thermoregulation)

8. RESET button

9. Heating temperature adjustument button +/-

10. Keylock

11. Led Blue - Flame presence

Programming key

a. Esc button (Back)

b. Programming keys

c. Ok button programming key

8 /

PRODUCT DESCRIPTION

Overall viewDISPLAY

Date and time

26/10/15 12:30

Keylock active

D.H.W. set temperature and indication of

the set temperature level

42°

C.H. set temperature and indication of the

set temperature level

Warning scheduled maintenance

Heating operation set

Heating operation active

D.H.W. operation set

D.H.W. operation active

Flame detected with indication of power

used

Digital pressure gauge (bar)

Scrolling text displaying operation as

information

Central heating

Error wsignals

The display show the code and

description

ALERT

AUTO function activated

AUTO

Hot Water Comfort activated

COMFORT

CH Schedule programming

(set display: boiler base - see user’s menù)

CH Schedule programming

(set display: boiler complete - see user’s menù)

Internal temperature displayed for

set zone. (with bus device connected

- optional)

External temperature displayed

ECO mode

WIFI active

WIFI connected to the local network,

but without access to the server

WIFI not conﬁ gured

Solar temperature probe connected -

option

26/10/15

1,5 bar

AUTO

Riscaldamento attivo

COMFORT

12:30

60° 82°

10°

20,5° 3

00 02 04 06 08 10 12 14 16 18 20 22 24

1. Flue connector

2. Air relief valve

3. C.H. Flow temperature probe

4. Main heat exchanger

5. Detection Electrode

6. Silencer

7. Secondary heat exchanger

8 Condensate trap

9. C.H. pressure relief valve

10. Gas valve

12. C.H. circuit ﬁ lter

13. Modulating circulation Pump with air release

valve

14. D.H.W. Flow switch

15. Diverter valve

16. Water pressure sensor

17. C.H. Return temperature probe

18. Modulating Fan

20. Combustion Analysis Test Point

/ 9

PRODUCT DESCRIPTION

Overall Dimensions

Minimum clearances

In order to allow easy access to the boiler for maintenance

operations, The boiler must be installed in accordance with the

clearances stated below.

A. Central Heating Flow

B. Domestic Hot Water Outlet

C. Gas Inlet

D. Domestic Cold Water Inlet

E. Central Heating Return

745

200

150

315 (24)

385 (30-35)

120 120

200

180

65 6567 67

25745

385 - mod. 30-35

450

053

003

50 50

10 /

INSTALLATION

Reference Standards

In the United Kingdom, the installation and initial start-up of the

boiler must be by a Gas Safe registered installer in accordance

with the installation standards currently in effect, as well as with

any and all local health and safety standards i.e. Gas Safe.

In the Republic of Ireland the installation and initial start-up of

the appliance must be carried out by a Competent Person in

accordance with the current edition of I.S.813 “Domestic Gas

Installations” and the current Building Regulations, reference

should also be made to the current ETCI rules for electrical

installation.

The installation of this appliance must be in accordance with

the relevant requirements of the Local Building Regulations,

the current I.E.E. Wiring Regulations, the by-laws of the local

authority, in Scotland, in accordance with the Building Standards

(Scotland) Regulation and Health and Safety document No. 635,

“Electricity at Work Regulations 1989” and in the Republic of

Ireland with the current edition of I.S. 813 and the Local Building

Regulations (IE).

C.O.S.H.H.

Materials used in the manufacture of this appliance are non-

hazardous and no special precautions are required when

servicing.

Codes of Practice

Installation should also comply with the following British

Standards Code of Practice (refer to the most recent version):

BS 7593: Treatment of water in domestic hot water

central heating systems

BS 5546: Installation of hot water supplies for

domestic purposes

BS 5440-1: Flues

BS 5440-2: Air supply

BS EN 12831 - BS EN 14336:

Forced circulation hot water systems

BS 6798: Installation of gas ﬁ red hot water boilers

of rated input not exceeding 70kW

BS 6891: Installation of low pressure gas pipes up to 28mm

BS 7671: IEE Wiring Regulations

BS 4814: Speciﬁ cation for expansion vessels

BS 5482: Installation of L.P.G.

Technical Bulletin TB143 Flue Gas Analysis

and in the Republic of Ireland in accordance with the following

codes of practice:

I.S. 813 Domestic Gas Installations

Avoid installing the boiler where the air inlet can be polluted

by chemical products such as chlorine (swimming pool area), or

ammonia (hair dresser), or alkalin products (launderette).

Flue

Detailed information on ﬂ ue assembly can be found in the

“ section.Connecting the Flue”

The boiler must be installed so that the ﬂ ue terminal is exposed

to the free passage of external air at all times and must not be

installed in a place likely to cause nuisance. It must not be

allowed to discharge into another room or space such as an

outhouse or closed lean-to.

Condensing boilers have a tendency to form a plume of water

vapour from the ﬂ ue terminal due to the low temperature of

the ﬂ ue gasses. The terminal should therefore be located with

due regard for the damage or discolouration that may occur

to building within the vicinity and consideration must also be

given to adjacent boundaries, openable windows should also

be taken into consideration when siting the ﬂ ue.

The minimum acceptable clearances are shown below:

- A Directly below an opening, window, etc 300 mm

- B Horizontally to an opening, window, etc 300 mm

- C Below gutters, soils pipes or drain pipes 75 mm

- D Below eaves 200 mm

- E From vertical drain pipe or soil pipe 75 mm

- F From internal or external corner 300 mm

- G Above ground, roof or balcony level 300 mm

- H From a surface facing the terminal 600 mm

- I From a terminal facing a terminal 1200 mm

- J Vertically from a terminal on the same wall 1500 mm

- K Horizontally from an terminal on the same wall 300 mm

- L Fixed by vertical ﬂ ue terminal

NOTE: THE FLUE MUST NOT BE INSTALLED IN A PLACE LIKELY CAUSE A TO

NUISANCE AND POSITIONED ENSURE THAT PRODUCTS OF COMBUSTION DO TO

NOT DISCHARGE ACROSS A BOUNDARY

It may be necessary to protect the terminal with a guard, if this

is the case it will be necessary to purchase a stainless steel

terminal guard. Reference should be made to the Building

Regulations for guidance.

Ventilation

The room in which the boiler is installed does not require

speciﬁ c ventilation. If the boiler is installed in a cupboard or

compartment ventilation is not required for cooling purposes.

/ 11

INSTALLATION

Gas Supply

The gas installation and tightness testing must be in accordance

with the requirements of BS6891. Ensure that the pipe size is

adequate for demand including other gas appliances on the

same supply.

Electrical Supply

The appliance requires an earthed 230V - 50 Hz supply and

must be in accordance with current I.E.E. regulations. It must

also be possible to be able to completely isolate the appliance

electrically. Connection should be via a 3 amp double pole fused

isolating switch with contact separation of at least 3mm on both

poles. Alternatively, a fused 3 amp, 3 pin plug and unswitched

socket may be used, provided it is not used in a room containing

a bath or shower. It should only supply the appliance.

Water Supply

The boiler is suitable for sealed systems only. The maximum

working pressure for the appliance is 6 bar. All ﬁ ttings and

pipework for the appliance should be of the same standard. If

there is a possibility of the incoming mains pressure exceeding 6

bar, particularly at night, then a suitable pressure limiting valve

must be ﬁ tted.

The boiler is designed to provide hot water on demand to

multiple outlets within the property. If there is a requirement

for greater demands, for example if the boiler has several

bathrooms and cloakrooms, a vented or unvented hot water

storage system may be used.

Showers

Any shower valves used with the appliance should be of a

thermostatic or pressure balanced type. Refer to the shower

manufacturer for performance guidance and suitability.

Flushing and Water Treatment

The boiler is equipped with a stainless steel heat exchanger.

The detailed recommendations for water treatment are given

in BS 7593 (Treatment of water in domestic hot water central

heating systems); the following notes are given for general

guidance.

If the boiler is installed on an existing system, any unsuitable

additives must be removed.

Under no circumstances should the boiler be ﬁ red before the

system has been thoroughly ﬂ ushed; the ﬂ ushing procedure

must be in line with BS 7593.

We highly recommend the use of a ﬂ ushing detergent

appropriate for the metals used in the circuit.

In hard water areas or where large quantities of water are in the

system the treatment of water to prevent premature scaling of

the main exchanger is necessary.

The formation of scale heat compromises the efﬁ ciency of the

thermic exchanger because small areas of scale cause a high

increase of the temperature of the metallic walls and therefore

add to the thermal stress of the heat exchanger.

Demineralised water is more aggressive so in this situation it

is necessary to treat the water with an appropriate corrosion

inhibitor.

Any treatment of water by additives in the system for frost

protection or for corrosion inhibition has to be absolutely

suitable for all metals used in the circuit.

The use of a corrosion inhibitor in the sysem is recommended

to prevent corrosion (sludge) damaging the boiler and system;

If anti-freeze substances are to be used in the system, check

carefully that they are compatible with the metals used in the

circuit.

ARISTON suggests the use of suitable anti-freeze products,

which will prevent rust and incrustation taking place.

Periodically check the pH balance of the water/anti-freeze

mixture of the boiler circuit and replace it when the amount

measured is out of the range stipulated by the manufacturer (7

< pH < 8).

DO NOT MIX DIFFERENT TYPES OF ANTI-FREEZE

In under-ﬂ oor systems, the use of plastic pipes without protection

against penetration of oxygen through the walls can cause

corrosion of the systems metal parts (metal piping, boiler etc),

through the formation of oxides and bacterial agents.

To prevent this problem it is necessary to use pipes with an

“oxygen proof barrier”, in accordance with standards DIN

4726/4729. If pipes of this kind are not used, keep the system

separate by installing heat exchangers of those with a speciﬁ c

system water treatment.

Ariston suggests the installation of a magnetic ﬁ lter on every

installation.

IMPORTANT

Failure to carry out the water treatment procedure will

invalidate the appliance warranty.

System Controls

The boiler is electrically controlled and is suitable for most

modern electronic time and temperature controls. The addition

of such external controls can be beneﬁ cial to the efﬁ cient

operation of the system. The boiler connections for external

controls are 12V DC and so only controls of 12V DC that have

voltage free contacts should be used. (page 25).

ARISTON supply a range of wired and wireless system controls.

Contact your supplier for more details.

Location

The boiler can be installed on any suitable internal wall

(suitable sound prooﬁ ng may be required when installing

onto a stud partition wall). Provision must be made to allow

for the correct routing of the ﬂ ue and siting of the terminal to

allow the safe and efﬁ cient removal of the ﬂ ue products. A

compartment or cupboard may be used provided that it has

been built or modiﬁ ed for this purpose. It is not necessary to

provide permanent ventilation for cooling purposes. Detailed

recommendations are given in BS 5440 Part 2. If it is proposed

that it is to be installed in a timber framed building then reference

should be made to IGEM Document, IGE/UP/7 or advice sought

from Gas Safe.

Where a room sealed appliance is installed in a room

containing a bath or shower, the appliance and any electrical

switch or appliance control, utilising mains electricity should

be situated speciﬁ cally in accordance with current IEE Wiring

Regulations.

For unusual locations, special procedures may be necessary.

BS 6798 gives detailed guidance on this aspect.

Codensate Discharge

The condensate discharge hose from the boiler must have

a continuous fall of 2.5o and must be inserted by at least

50mm into a suitable acid resistant pipe - e.g. plastic waste or

12 /

INSTALLATION

overﬂ ow pipe. The condensate discharge pipe must have a

minimum diameter of 22mm, must have a continuous fall and

preferably be installed and terminated to prevent freezing.

The discharge pipe must be terminated in a suitable position:

i) Connecting into an internal soil stack (at least 450mm above

the invert of the stack). A trap giving a water seal of at least

75mm must be incorporated into the pipe run, there also

must be an air beak upstream of the trap.

ii) Connecting into the waste system of the building such as

a washing maching or sink trap. The connection must be

upstream of the washing machine/sink. If the connection is

downstream of the waste trap then an additional trap giving

a minimum water seal of 75mm and an air break must be

incorporated in the pipe run, as above.

iii) Terminating into a gully, below the grid level but above the

water level

iv) Into a soakaway

Note: If any condensate pipework is to be installed externally

then it should be kept to a minimum and be insulated with a

waterproof insulation and have a continuous fall. The total

length of external pipe used should not exceed 3 metres.

Some examples of the type of condensate terminations can be

found below.

1. Internal termination of condensate drainage pipe to internal

stack.

2. External termination of condensate drainage pipe via internal

discharge branch (e.g. sink waste) and condensate siphon.

3. External termination of condensate drainage pipe via internal

discharge branch (e.g. sink waste - proprietary ﬁ tting).

4. External termination of condensate drainage pipe via

condensate siphon

Tund si h

trap

T i hund s

trap

T i hund s

Tund si h

Ext l i l gth erna p pe en

ma 3 mex. tres

( t i l t )mus be nsu a ed

Condensate Discharge

Push ﬁ t the ﬂ exible condensate pipe into the outlet spigot on

the appliance. Cut to length and locate outlet into a tundish

14 /

INSTALLATION

Gas connection

Make sure, using the labels on the packaging and the data plate

on the appliance itself, that the boiler is in the correct country

and that the gas category for which the boiler was designed

corresponds to one of the categories available in the country

where it will be used.

The gas supply piping must be created and measured out in

compliance with speciﬁ c legal requirements and in accordance

with the maximum power of the boiler.

Check that the supplied gas corresponds to the type of gas for

which the boiler was designed (see the data plate located on

the appliance itself).

It is also important to check that the pressure of the gas

(methane or LPG) you will be using to feed the boiler is suitable,

because if it is insufﬁ cient the power may be reduced, causing

inconvenience for the user.

Water connection

The illustration below shows the connections for the water and

gas attachments of the boiler. See valves conﬁ guration on page

13.

Check that the maximum water mains pressure does not exceed

6 bar; if it does, a pressure reducing valve must be installed.

For the measuring of the pipes and of the heating bodies in the

heating system, the residual head value should be calculated

as a function of the requested ﬂ ow rate, in accordance with the

values shown in the circulation pump graph.

Legend:

A. Central heating Flow

B. Domestic Hot Water Outlet

C. Gas Inlet

D. Domestic Cold Water Inlet

E. Central Heating Return

F. Safety Valve Discharge

H. Drain Valve

I. Condensate discharge

Instructions for removing the housing and inspecting the

appliance.

Before carrying out any work on the boiler, switch off the power

supply using the external bipolar switch and close the gas tap.

To access the inside of the boiler:

- unscrew the two screws from the front panel ( ), pull the panel a

forwards and uncouple it from the upper pins ( ),b

- pivot the electronic unit by pulling it forwards ( ).c

(a)

CAUTION!!

REMOVE ONLY THE SCREWS SHOWN

IN THE PICTURE

(b)

/ 15

INSTALLATION

To calculate the size of the heating installation, refer to the

"Available pressure" graph below.

Graph representing the available circulation pump pressure

∆T20 oC

100

200

300

400

500

600

0 200 400 600 800 1000 1200

mbar

l/h

(c)

Underﬂ oor heating

For appliances with underﬂ oor heating, it is possible but not

necessary to ﬁ t a safety thermostat onto the underﬂ oor heating

outlet. For the electrical connection of the thermostat see the

section on “Electrical connections - pages 26”.

If the outlet temperature is too high, the boiler will stop both

domestic hot water and the heating production and the error

code 1 16 “ﬂ oor thermostat contact open” will appear on the

display. The boiler will restart when the thermostat is closed

during automatic resetting.

If the thermostat cannot be installed, the underﬂ oor heating

equipment must be protected by a thermostatic valve, or by a by-

pass to prevent the ﬂ oor from reaching too high a temperature.

/ 17

INSTALLATION

Connecting the Flue

Flue System

The provision for satisfactory  ue termination must be made as

described in BS 5440-1.

The appliance must be installed so that the  ue terminal is ex-

posed to outdoor air.

The terminal must not discharge into another room or space

such as an outhouse or lean-to.

It is important that the position of the terminal allows a free pas-

sage of air across it at all times.

The terminal should be located with due regard for the damage

or discolouration that might occur on buildings in the vicinity, it

must also be located in a place not likely to cause nuisance.

In cold or humid weather water vapour may condense on lea-

ving the  ue terminal.

The effect of such “steaming” must be considered.

If the terminal is less than 2 metres above a balcony, above

ground or above a  at roof to which people have access, then a

suitable stainless steel terminal guard must be  tted.

The minimum acceptable spacing from the terminal to obstruc-

tions and ventilation openings are speci ed in Fig. 1.

- A Directly below an opening, window, etc 300 mm

- B Horizontally to an opening, window, etc 300 mm

- C Below gutters, soils pipes or drain pipes 75 mm

- D Below eaves 200 mm

- E From vertical drain pipe or soil pipe 75 mm

- F From internal or external corner 300 mm

- G Above ground, roof or balcony level 300 mm

- H From a surface facing the terminal 600 mm

- I From a terminal facing a terminal 1200 mm

- J Vertically from a terminal on the same wall 1500 mm

- K Horizontally from an terminal on the same wall 300 mm

- L Fixed by vertical  ue terminal

Fig. 1

11 8 mm

1 50 mm

M u L = inim m ength 500 mm

1 80 mm

Fig. 2

18 /

INSTALLATION

Warning

The exhaust gas ducts must not be in contact with or close

to in ammable material and must not pass through building

structures or walls made of in ammable material.

When replacing an old appliance, the  ue system must be

changed.

Important

Ensure that the  ue is not blocked.

Ensure that the  ue is supported and assembled in accordance

with these instructions.

150 mm

118

* Min slope: 1 ˚

1 = 17.5mm per metre˚

150 mm

* pente

Installation without extension

Installation with extension

Level

Fitting the Coaxial Flue (Ø 60 / 100 Horizontal)

Contents:

1x Silicone O-Ring (60mm)

1x Elbow (90°)

2x Wall Seals (Internal & External)

1x Flue Pipe including Terminal (1 metre - 60/100)

2x Flue Clamps

4x Screws

2x Seals

Once the boiler has been positioned on the wall,  t the rubber

 ue seal into the internal  ue turret (see diagram opposite),

Insert the elbow into the socket and rotate to the required

position. note: It is possible to rotate the elbow 360° on its

vertical axis.

Using the  ue clamp, seals and screws supplied (Fig 4) secure

the elbow to the boiler.

The 1 metre horizontal  ue kit (3318073) supplied is suitable for

an exact X dimension of 753mm.

Measure the distance from the face of the external wall to

the face of the  ue elbow (X - Fig 2), this  gure must now be

subtracted from 753mm, you now have the total amount to be

cut from the plain end of the  ue.

Draw a circle around the outer  ue and cut the  ue to the

required length taking care not to cut the inner  ue, next cut the

inner  ue ensuring that the length between the inner and outer

 ue is maintained. (Fig 4).

e.g.

X = 555mm

753-555 = 198mm (Length to be cut from the plain end of the

 ue).

Once cut to the required length, ensure that the  ue is free from

burrs and reassemble the  ue. If  tting the  ue from inside of

the building attach the outer wall seal to the  ue terminal and

push the  ue through the hole, once the wall seal has passed

through the hole, pull the  ue back until the seal is  ush with the

wall. Alternatively, the  ue can be installed from outside of the

building, the outer seal being  tted last.

Should the  ue require extending, the  ue connections are push

 t, however, one  ue bracket should be used to secure each

metre of  ue.

Note: See table for maximum and minimum  ue runs.

slope

Fig. 3

Note: A Plume management kit is available for 60/100

horizontal termination. Instructions for installation are

supplied with the Plume management kit.

/ 19

INSTALLATION

Fitting the 5” Flue

(Ø 80 / 125 Horizontal/vertical) Once the boiler has been positioned on the wall, it is necessary

to insert the Ø80/125 adaptor (Fig. 5) for both horizontal and

vertical  ue runs into the boiler  ue socket (not supplied with

 ue kit - Part No 3318095).

Push the adaptor onto the boilers  ue connection, grease the

seals then add extensions or elbows as required, secure the

adaptor, using the clamp and screws provided.

To  t extensions or elbows it is  rst necessary to ensure that

the lip seal is  tted correctly into the inner  ue, once veri ed,

it is simply necessary to push them together, no clamps are

necessary to secure the  ue components.

Before proceeding to  t the  ue, ensure that the maximum  ue

length has not been exceeded (See the tables) and that all

elbows and bends have been taken into consideration, for each

additional 90° elbow 1 metre must be subtracted from the total

 ue length, and for each 45° 0.5 metres must be subtracted from

the total  ue length (the height of the vertical adaptor and a 45°

bend can be seen in Fig.6 and a 90° bend in Fig. 7).

Note: DO NOT cut the vertical  ue kit.

1 80 mm

Total length

of Vertical Kit

1240 mm

5" Adaptor

Part no: 3318095

* This length will vary

according to the type

of ashing installed

Useable length

of Vertical ue

575 mm*

Fig. 5

Clamp

Seal

Screws

Fig. 4

Fig. 6 Fig. 7

20 /

INSTALLATION

Fitting the Coaxial Flue

(Ø 60 / 100 Vertical)

Note: See table for maximum and minimum  ue runs.

Contents:

1x Conical Adaptor (60/100mm)

1x Vertical Flue Kit (80/125mm)

The vertical  ue kit is supplied with a specially designed

weather proof terminal  tted, it can be used either with a  at

roof or a pitched roof.

The Vertical  ue kits useable lengths with the pitched roof

 ashings are indicated in Fig. 7.

Before proceeding to  t the  ue, ensure that the maximum  ue

length has not been exceeded (See the tables) and that all

elbows and bends have been taken into consideration, for each

additional 90° elbow 1 metre must be subtracted from the total

 ue length, and for each 45° 0.5 metres must be subtracted from

the total  ue length (the height of the vertical adaptor and a 45°

bend can be seen in Fig. 8).

Mark the position of the  ue hole in the ceiling and/or roof (see

Fig. 7 for distance from wall to the centre of the  ue).

Cut a 130mm diameter hole through the ceiling and/or roof and

 t the  ashing plate to the roof.

DO NOT cut the vertical  ue kit.

To connect the vertical  ue kit directly to the boiler, place the

vertical starter kit (Part No. 3318079) (see Fig. 7) onto the exhaust

manifold and secure with the clamp,  t the vertical adaptor onto

the vertical starter kit (note: there is no need to use a clamp to

secure this as it is a push  t connection), the vertical  ue kit must

then be inserted through the roof  ashing, this will ensure that

the correct clearance above the roof is provided as the terminal

is a  xed height.

Should extensions be required, they are available in 1 metre

(Part No. 3318077), 500mm (Part No. 3318078) and they must be

connected directly to the vertical starter kit before connecting

the adaptor to allow the vertical  ue kit to be  tted. In the event

that extension pieces need to be shortened, they must only be

cut at the male end and it must be ensured that the inner and

outer  ue remain  ush.

When utilising the vertical  ue system, action must be taken

to ensure that the  ue is supported adequately to prevent the

weight being transferred to the appliance  ue connection by

using 1  ue bracket per extension.

When the  ue passes through a ceiling or wooden  oor, there

must be an air gap of 25mm between any part of the  ue

system and any combustible material. The use of a ceiling

plate will facilitate this. Also when the  ue passes from one

room to another a  re stop must be  tted to prevent the passage

of smoke or  re, irrespective of the structural material through

which the  ue passes.

1 80 mm

Vert Adaptor

(supplied with ue kit)

Vertical Starter

Part No: 3318079

* This length will vary

according to the type

of ashing installed

Total length

of Vertical Kit

1355 mm

Useable length

of Vertical ue

690 mm*

Fig. 7

Fig. 8

/ 21

INSTALLATION

Fitting the Twin Pipe (Ø80 / 80)

Note: See table for maximum and minimum  ue runs.

Where it is not possible to terminate the  ue within the distance

permitted for coaxial  ues, the twin  ue pipe can be used by

 tting a special adaptor to the  ue connector and using the

aperture for the air intake located on top of the combustion

chamber.

Always ensure that the  ue is adequately supported, using one

 ue bracket per extension and avoiding low points. (ARISTON

supply suitable clamps as Part No. 3318015).

To utilise the air intake it is necessary to:

1) Remove the top of the air intake by cutting it with a suitable

knife.

2) Insert the header on the tube or the elbow up until the lower

stop (you do not have to use the washer).

3) Insert the elbow/header in the boiler air intake hole and fasten

it with screws.

The twin  ue pipes can be  tted with or without additional elbows

and need no clamps, simply ensure that the lip seal is inserted

in the female end of the  ue pipe and push the extension piece

fully into the previous section of  ue pipe or elbow, check that

the lip seal is not dislodged when assembling the  ue (greasing

the seal will aid assembly).

Twin pipe can also be converted back to Coaxial  ue to enable

vertical termination with a coaxial kit by using the pipe bridge

(Twin - Coaxial Adaptor - Part No. 3318089). When running the

twin  ue pipe vertically.

It is not possible to terminate concentrically horizontally.

Termination is only possible with separate air and exhaust

terminals.

When siting the twin  ue pipe, the air intake and exhaust

terminals must terminate on the same wall, the centres of the

terminals must be a minimum of 280 mm apart and the air intake

must not be sited above the exhaust terminal (refer to Fig. 10).

The air intake pipe can be run horizontally, however, the terminal

and the  nal 1 metre of  ue must be installed either horizontally

or with a slight fall away from the boiler to avoid rain ingress.

It is also strongly recommended that the air intake pipe run be

constructed of insulated pipe to prevent condense forming on

the outside of the tube.

Ensure the exhaust tube has a minimum fall back to the boiler of

1 / metre (1 = 17.5mm/metre)˚ ˚

The maximum permissible  ue length for twin  ue is dependent

on the type of run used (see table on page 23).

For further information relating to  ue runs not illustrated, please

contact the Technical Department 0333 240 7777.on

22 /

INSTALLATION

For coaxial systems, the maximum development value,

mentioned in the table below also takes into account an elbow.

For twin  ue systems the maximum development value,

mentioned in the table includes the exhaust gas/air intake

terminal.

Twin  ue systems outlets should respect the following

instructions:

1- Use the same ø 80 mm  ue pipes for the air intakes and

exhaust gas ducts.

2- If you need to insert elbows in the air intake and exhaust gas

ducts, you should consider for each one the equivalent length

to be included in the calculation of developed length.

3- The exhaust gas duct should jut above the roof by at least 0.5

4- The intake and exhaust gas ducts in Type C13 + C53 must be

installed on the same wall, or where the exhaust is vertical

and the air intake horizontal, the terminals must be on the

same side of the building.

EXHAUST

AIR INTAKE

AIR INTAKE MUST NOT BE

FITTED ABOVE THE EXHAUST

195

105

120 180

Fig. 9

Fig. 10

/ 23

INSTALLATION

Table of  ue gas exhaust duct lengths

S1 = Air intake S2 = Flue gas exhaust

S1 = S2 - Air intake and  ue gas exhaust equal lengths

S1 + S2 - Air intake and  ue gas exhaust unequal lengths

TYPE C13

TYPE C TYPE C33 53

TYPE C TYPE C33 33

FLUE TYPE

Maximum Extension

Exhaust-air (m) Diameter of pipe

(mm)

ALTEAS ONE NET

30 35

Coaxial System

C13

C33

C43

7 6 ø 60/100

C13

C33

C43

20 24 ø 80/125

Twin-pipe System

S1 = S2

ø 80/80

C13 30 = 30 23 = 23

C33 40 = 40 30 = 30

C43 30=30 23 = 23

C53 S1 + S2

60 45 ø 80/80

24 /

INSTALLATION

Electrical connections

For increased safety, ask a quali ed technician to perform a

thorough check of the electrical system.

The manufacturer is not responsible for any damage caused by

the lack of a suitable earthing system or by the malfunctioning

of the electricity mains supply.

Make sure that the system is able to withstand the maximum

power absorbed by the boiler (this is indicated on the appliance

data plate). Check that the section of the wires is suitable and is

not less 0,75 mm 2

The appliance must be connected to an ef ecient earthing

system if it is to operate correctly.

The power supply cable must be connected to a 230V-50Hz

network, where the L-N poles and the earth connection are all

respected.

Important!

In the event that the power supply cable must be changed,

replace it with one with the same speci cations.

Power supply cable

Important!

The appliance is supplied with a  y-lead already

connected, this must be connected to a 240V supply fused

at 3 Amp and must facilitate completed electrical isolation of

the appliance, by use of a fused double pole isolator having a

contact separation of at least 3mm in all poles or alternatively

by means of a 3A fused three pin plug and unswitched

shuttered socket outlet both complying with BS1363.

The use of multiplugs, extension leads or adaptors is strictly

prohibited.

It is strictly forbidden to use the piping from the hydraulic,

heating and gas systems for the appliance earthing connection.

The boiler is not protected against the effects caused by

lightning. If the mains fuses need to be replaced, use 2A rapid

fuses.

Peripheral unit connection

To access peripheral unit connections carry out the following

steps:

- Disconnect the boiler from the power supply

- Remove the casing

- Rotate the control panel while pulling it forwards

- Unhook the two clips to have access to the peripherical

connections and the main P.C.B.

SWHV06

60 mm

BUS

T B

FLOOR

TA2

SE TNK SOL TA1

CN1

CUBE S NET (standard for CLAS NET ONE)

Wi iF Room Thermost ta

SENSYS

Remot t tie onC rol op( on)

Ou doort

Sensor

Room Thermost ta

( )op onti

1 2 3 4 5 6 7

Peripheral connections:

BUS = Remote control connection

FLOOR/TA2 = the under oor heating thermostat or the room

thermostat 2 (selected via parameter 223)

SE = the external sensor.

SOL = Solar temperature probe

TA1 = the room thermostat 1

WARNING!

BEFORE PERFORMING ANY WORK ON

THE BOILER, FIRST DISCONNECT IT FROM

THE ELECTRICAL POWER SUPPLY USING

THE EXTERNAL BIPOLAR SWITCH AND

REMOVE THE FUSE.

BUS

T B

TA2 S NE T K SOL T 1A

/ 25

INSTALLATION

Room Thermostat / Remote Clock Connection

To connect a room thermostat, it is necessary to:

1. Open the control panel

2. Loosen the cable clamp using a screwdriver and insert the

wires leading from the room thermostat

3. Connect the wires to the terminals as indicated in the  gure

below, removing the link

4. If a remote time clock is to be  tted, using a volt free switching

time clock connect the switching wires from the time clock

following points 1 - 3 above

5. If using an external time clock and room thermostat, these

must be connected in series as shown in diagram C,

6. Ensure that they are well connected and not subject to stress

when the control panel is closed

DO NOT CONNECT 240V TO ANY PERIPHERAL CONNECTIONS

Cube Room sensor (wireless) Connection

To connect a room thermostat, read the instructions present in

the kit delivered with the gas boiler.

DO NOT CONNECT 240V TO ANY PERIPHERAL CONNECTIONS

Connector TA on P BC

( o o tage s itchingl w v l w )

Connector TA on P BC

( o o tage s itchingl w v l w )

Connector TA on P BC

( o o tage s itchingl w v l w )

26 /

INSTALLATION

Electrical diagram

For increased safety, ask a quali ed technician to perform a

thorough check of the electrical system.

The manufacturer is not responsible for any damage caused by

the lack of a suitable earthing system or by the malfunctioning

of the electricity mains supply.

BUS

T B

FLOOR

TA2

230 V

SE TNK SOL TA1

230 V 230 V 230 V 230 V 230 V

N L

GAS VA ELV

Modula nti g

fan

Modula n c rcula onti g i ti

pump

Gry

D H W. . .

o s cw wit h

Water

pressure sensor

Diverter valve

Bl Bl

C. .H return

t tempera ure

probe

C. . wH o

t tempera ure

probe

Det ti g itiec on/I n on

elec rodet

GAT WE AY WIFI

Bk= Black

Rd = Red

Gr = Green

Bl = Blue

Br = Brown

Wh = White

Gry = Grey

/ 27

COMMISSIONING

Initial preparation

Ariston Thermo UK Ltd support the benchmark initiative.

On pages 77 and 78 of this manual the Benchmark

Commissioning Checklist and Service interval Record can be

found. It is important that this is completed in the presence of

your customer, they are shown how to use it, and it is signed by

them. Please instruct your customer that they must have this

manual with them whenever they contact a service engineer

or us.

Preliminary electrical system checks to ensure electrical safety

must be carried out by a competent person i.e. polarity, earth

continuity, resistance to earth and short circuit.

Electricity supply

- Check that the voltage and frequency of the electricity supply

correspond to the data shown on the boiler data plate;

- Make sure that the earthing connection is efﬁ cient.

Filling the Heating System:

ATTENTION!!

CONNECT THE PIPE OF CONDENSATE DISCHARGE

BEFORE REFILLING AND THE DE-AERATION OF THE

HEATING CIRCUIT.

Remove the front casing panel and lower the control panel as

described on page 14.

Open the central heating flow and return cocks supplied with

the connection kit;

Open the manual air vent positioned at the side of the primary

exchanger . The valve is already connected to a discharge (2)

pipe related to the condensate trap.

Close all air release valves on the central heating system;

Gradually open the valves at the filling point (filling loop) until

water is heard to flow, do not open fully;

Open each air release tap starting with the lowest point and

close them only when clear water free of air is visible;

Continue filling the system until at least 1.5 bar registers on the

pressure gauge;

Inspect the system for water tightness and remedy any leaks

discovered.

IMPORTANT!

MANUALLY VENT THE HEAT EXCHANGER THE MANUAL AIR VENT AILURE AT . F

TO VENT ADEQUATELY MAY DAMAGE THE HEAT EXCHANGER (PAGE 8, LEGEND

2).

Filling of the DHW System:

Close all hot water draw off taps;

Open the cold water inlet cock supplied with the connection kit;

Slowly open each draw off tap and close them only when clear

water, free of bubbles, is visible.

Gas Supply:

Inspect the entire installation including the gas meter and test

for tightness. The entire installation should be in accordance

with the relevant standards. In GB this is BS 6891 and in IE this

is the current edition of I.S.813.

The connection on the the appliance is a 15mm 22mm on (

35Kw) nut and olive located at the rear of the gas service cock.

If the gas supply serves other appliances, ensure that an

adequate supply is available both to the boiler and the other

appliances when they are in use at the same time.

Pipe work must be of an adequate size. The final pipe size

must not be smaller than the appliance inlet size.

Open the gas cock (supplied with the connection kit) to the

appliance and check the gas connection on the appliance for

leaks.

Water Treatment:

The boiler is equipped with a stainless steel heat exchanger.

The detailed recommendations for water treatment are given

in BS 7593 (Treatment of water in domestic hot water central

heating systems); the following notes are given for general

guidance;

If the boiler is installed on an existing system, any unsuitable

additives must be removed;

Under no circumstances should the boiler be fired before the

system has been thoroughly flushed; the flushing procedure

must be in line with BS7593.

Firstly fill the central heating system with the power off, and

flush through cold, fill the central heating system again, adding

a flushing detergent, run the boiler on central heating until it

reaches its operating temperature and flush the system, refill

the system with a suitable corrosion inhibitor,

NOTE: FAILURE CARRY OUT THE FLUSHING PROCEDURE WILL RESULT IN THE TO

WARRANTY BECOMING VOID .

28 /

COMMISSIONING

FIRST IGNITION OPERATION

1. Check the electrical

supply.