Atag iC 24, iC 28, iC Economiser Plus 27, iC 36, iC 40 Installation & Servicing Instructions Manual

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I n s t a l l a t i o n & S e r v i c i n g

Instructions

iC 24 iC 28 iC 36 iC 40 iC Economiser Plus 27 iC Economiser Plus 35 iC Economiser Plus 39

Natural Gas Boilers

Boiler G.C No

iC 24 47-310-19 iC 28 47-310-21 iC 36 47-310-23 iC 40 47-310-25 iC Economiser Plus 27 47-310-27 iC Economiser Plus 35 47-310-29 iC Economiser Plus 39 47-310-31

CE PIN 0063CQ3634

These instructions are to be retained by the user.

Explanation of the Control Panel & Buttons

DHW Visible when DHW program is active Flashing when there is a heat demand for DHW Error Error indication (accompanied with a code).

Alert Service-mode or blocking

Pump Visible when pump is set to continuously Flashing when frost program is active

Eco Visible when DHW comfort function is not active

Flame Visible when boiler is active for heating or DHW

Heating Visible when heating program is active Flashing when there is a heat demand for heating

Central heating program (On = +, Oﬀ = -)

Setting of boiler temperature (max. ﬂ ow temperature)

+/-function (ancillary function: OK and Escape)

Eco-function DHW on/oﬀ . Press 6 seconds for Information

Reset button

DHW program (On = +, Oﬀ = -)

Setting of hot water temperature

+/-function (ancillary function: Scroll and +/-function)

Commissioning function (Press both + buttons for 6 seconds)

Pump function (Press both - buttons for 6 seconds)

Information on the water pressure:

The default view of the display shows OK. Press the eco-button for 6 seconds and press the scroll-buttons until A6 is displayed. The actual water pressure will be shown:

Water pressure too low

Code 118 and spanner symbol visible:

Water pressure is too low (<0.8 bar).

Power is reduced by 20%. The installation should be reﬁ lled.

or Code 118 and spanner symbol visible:

Water pressure is too low (<0.5 bar).

The boiler is taken out of operation. The installation should be reﬁ lled.

After the installation has been reﬁ lled and if the pressure was below

0.5 bar the de-aeration program will start (Code 105 and spanner symbol visible). This will last for approx 7 mins.

Water pressure too high

Code 117 and spanner symbol visible:

Water pressure is too high (> 3.0 bar).

The boiler is taken out of operation. The installation pressure should be reduced by draining water from the heating system.

See chapter 12 for more information about button functions and read-out.

Installation & Servicing instructions ATAG iC-Range

Contents

1 Introduction .................................................................................................................................... 4

2 Rules & Regulations (Symbols) .....................................................................................................5

3 Technical speciﬁ cations ..................................................................................................................7

4 Dimensions ................................................................................................................................... 9

5 Delivery package .......................................................................................................................... 10

6 Boiler description .......................................................................................................................... 10

7 Boiler photo components list ........................................................................................................ 11

8 Mounting boiler frame .................................................................................................................. 12

8.1 Wall frame ......................................................................................................................... 13

9 Connecting boiler ......................................................................................................................... 14

9.1 Central heating system ..................................................................................................... 14

9.2 Expansion vessel .............................................................................................................. 15

9.3 Water quality .....................................................................................................................15

9.4 Heating systems with plastic pipes ................................................................................... 17

9.5 Gas connection in general ................................................................................................ 17

9.5.1 Natural gas connection (NG) ............................................................................................17

9.5.2 Propane gas connection (LPG) ......................................................................................... 17

9.5.3 House pressure regulator .................................................................................................18

9.5.4 Dimensioning of the low pressure gas line .......................................................................18

9.5.5 De-aerating the LPG tank ................................................................................................. 18

9.6 Hot water supply ............................................................................................................... 19

9.7 Condensation drain pipe ................................................................................................... 19

9.8 Flue gas exhaust system ..................................................................................................23

9.8.1 Flue terminal locations ...................................................................................................... 24

9.8.2 Dimensioning of the ﬂ ue gas and air intake duct ............................................................27

9.9 Fitting the boiler onto the boiler frame ............................................................................. 29

10 Electrical connection ....................................................................................................................31

10.1 One controller, OpenTherm and BUS connection .............................................................32

10.2 Room thermostat volt free connection ..............................................................................32

10.3 ATAG Central Heating volt free timer connection .............................................................. 32

10.4 ATAG Hot Water volt free timer connection ......................................................................32

10.5 DHW sensor connection ................................................................................................... 32

10.6 ATAG Outside sensor ........................................................................................................ 32

10.7 230V Control Block (230V live output) .............................................................................. 32

10.8 230V Control Block (SwL Switched live) ........................................................................... 32

10.9 Electrical diagram ............................................................................................................. 33

11 Filling system ............................................................................................................................... 34

11.1 Hot water supply ...............................................................................................................34

12 Boiler controls .............................................................................................................................. 35

12.1 Controls and explanation of the functions ......................................................................... 36

13 Commissioning the boiler .............................................................................................................37

13.1 Settings .............................................................................................................................39

13.2 Parameter chapter ............................................................................................................ 39

14 Isolating the boiler .......................................................................................................................40

15 Commissioning ............................................................................................................................. 41

15.1 Checking the CO2 ............................................................................................................. 42

15.2 Checking ﬂ ue integrity .......................................................................................................45

15.3 CO and combustion checks ............................................................................................. 46

16 Routine servicing .......................................................................................................................... 48

16.1 Flow restrictor ................................................................................................................... 52

16.2 Component replacement ................................................................................................... 52

16.3 User's instructions ............................................................................................................. 52

16.4 Warranty ............................................................................................................................ 52

17 Error codes and fault ﬁ nding .......................................................................................................53

Annex A System water additives ..................................................................................................... 54

Annex B Declaration of conformity .................................................................................................. 55

Annex C Short parts list ...................................................................................................................56

Work on the installation should only be carried out by qualiﬁ ed personnel with calibrated equipment and appropriate tools.

Installation & Servicing instructions ATAG iC-Range

1 Introduction

These instructions describe the functioning, installation, use and primary maintenance of ATAG central heating boilers for the United Kingdom.

These instructions are intended for the use of Gas Safe registered installers in connection with the installation and putting into operation of ATAG boilers. It is advisable to read these instructions thoroughly, well in advance of installation. Separate instructions for use are supplied with the boiler for users of ATAG central heating boilers. ATAG is not liable for the consequences of mistakes or shortcomings which have found their way into the installation instructions or user’s manual. Further, ATAG reserves the right to alter its products without prior notiﬁ cation.

When delivering the boiler, give the customer clear instructions concerning its use; present the customer with the user’s manual and warranty card.

Each boiler is ﬁ tted with an identiﬁ cation plate. Consult the details on this plate to verify whether the boiler is compliant with its intended location, e.g.: gas type, power source and exhaust classiﬁ cation.

On completion of the installation the installer or commissioning engineer must ﬁ ll out and complete the Benchmark Commissioning Checklist found on page 59 of this manual and hand this to the customer for future record keeping. The Benchmark Service Record must also be completed by the service agent following each service call, and return to the customer.

Installation & Servicing instructions ATAG iC-Range

2 Rules & Regulations (Symbols)

The following regulations apply to installation of ATAG central heating boilers:

Legislation and Regulations. Gas Safety (Installation and Use). All gas appliances must by law, be installed by a competent person, eg. Members of Gas Safe Register and in accordance with the current Gas Safety Regulation. Failure to install appliance correctly could lead to prosecution. All Gas Safe registered installers carry a Gas Safe ID card and have a registration number. You can call Gas Safe Register directly on 0800 408 5577.

In addition to the above regulations this appliance must be installed in compliance with the current IEE Regulations and Building Regulations. Regulations and bye laws of the Local Water Authority and the Current Health and Safety Regulation.

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.

The current Electricity at Work Regulation must be complied with and also be in accordance with the relevant and current editions of the British Standards. The ATAG iC boiler is a certiﬁ ed appliance and must not be modiﬁ ed or installed in any way contrary to this Installation Manual. Manufacturers instructions must not be taken, in any way, as overriding statutory obligations. The ATAG iC boiler is a central heating boiler with an integrated hot water function. The boiler must be connected according to these instructions and all installation norms in respect of the part of the boiler to be connected.

The appliance is not to be used by children or persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.

Children being supervised not to play with the appliance.

Observe the following rules of safety:

- All work on the boiler must take place in a dry environment.

- ATAG boilers may never be in operation without their housing, except in connection with maintenance or adjustments (see Chapter 15 and 16).

- Never allow electrical or electronic components to come into contact with water.

Carry out the following tasks in connection with maintenance, etc. to an already-installed boiler:

- Shut down all programs

- Close the gas isolation valve

- Shut down the 230V power supply

- Close the shut oﬀ valve of the boiler’s cold water supply

See chapter 15 and 16 for further instructions.

Installation & Servicing instructions ATAG iC-Range

Take note of the following when maintenance or adjustments are needed:

- The boiler must be able to function during these activities; for this reason, the boiler’s 230V power supply, gas pressure and water pressure must be maintained. Ensure that there is not a source of potential danger during these activities.

Following maintenance or other activities; always check the installation of all parts through which gas ﬂ ows (using leak detection spray).

The following (safety) symbols may be encountered in these installation instructions and on the boiler (packaging):

Boiler must be stored away from frost.

Protect packaging and/or contents from damage as a result of insuﬃ cient care taken during transport.

Protect the boiler from weather conditions during transport and storage whilst still in its packaging.

If and how to clamp when using transport trucks with clamp equipment.

If and how to transport when using a rolling jack.

The whole packaging is made of recycled materials and can be recycled again.

Transport and place the boiler in its packaging in this position.

Do not to step on or stand on the package.

An assembly or dismantling must be carried out.

Pay extra attention in connection with a particular operation.

Useful tip or advice

Disposal of the product

This product should be handed in at a designated collection point, e.g. by handing it in at a duly authorized reseller when purchasing a similar product, or at an authorized collection site for recycling products wich contains electrical and electronic equipment (EEE) and batteries and accumulators. Because of the potentially hazardous substances that usually accompany EEE, improper handling of this type of waste could have a possible impact on the environment and human health. Your cooperation in the proper disposal of this product will contribute to the eﬀ ective usage of natural resources. For more information on recycling this product, please contact your city oﬃ ce, local waste disposal facilities, oﬃ cial service for chemical waste or landﬁ ll site.

Installation & Servicing instructions ATAG iC-Range

3 Technical speciﬁ cations

Technical speciﬁ cations Natural gas

Boiler type iC 24 iC 28 iC36 iC 40 iC Economiser Plus 27 iC Economiser Plus 35 iC Econ omiser Plus 39

Type heat exchanger iCon1 iCon1 iCon2 iCon2 iCon1 iCon2 iCon2

CE product identiﬁ cation number (PIN) 0063CQ3634

Country of destination UK

Qmin input min. CH & DHW (Hi) kW 4.5 4.5 6.2 6.2 4.5 6.2 6.2

Qn input nominal CH (Hi) kW 21.6 21.6 28.8 28.8 21.6 28.8 28.8

Qr adjusted input CH (Hi) kW 21 .6 21.6 28.8 28.8 21.6 28.8 28.8

Qmin input min. CH & DHW (Hs) kW 5.0 5.0 6.9 6.9 5.0 6.9 6.9

Qn input nominal CH (Hs) kW 24.0 24.0 32.0 32.0 24.0 32.0 32.0

Qnw input nominal DHW (Hi) kW 24.0 27.3 35.4 37.9 28.3 36.3 37.9

Qnw input nominal DHW (Hs) kW 26.7 30.3 39.3 42.1 31.4 40.3 42.1

Pmin output min. CH (50/30°C) kW 5.0 5.0 6.9 6.9 5.0 6.9 6.9

Pn output nominal CH (50/30°C) kW 23.2 23.2 31.2 31.2 23.2 31.2 31.2

Pmin output min. CH (80/60°C) kW 4.4 4.4 6.1 6.1 4.4 6.1 6.1

Pn output nominal CH (80/60°C) kW 21.2 21.2 28.3 28.3 21.2 28.3 28.3

Pww output DHW kW 23.5 26.8 34.7 37.1 30.0 38.4 40.1

NOx class EN15502-1 6

O2 (full load) % 4.7

CO2 (full load) % 9.0

Appliance type B23, B33, C13, C33, C43, C53, C63, C83, C93

Flue gas temperature class T100

Max. ﬂ ue resistance at Qnw/Qn Pa 130 153 191 143 151 140 148

Flue gas temperature CH (80/60°C full load) °C 59

Flue gas temperature CH (50/30°C full load) °C 34

Flue gas mass ﬂ ow (full load DHW) g/s 10 11 14 15 11 14 15

Flue gas temperature CH (36/30°C low load) °C 30 30 30 30 30 30 30

Gas categories II2H3P

Gas pressure 2H / 3P mbar 20 / 37

Gas consumption max. G20 m3/hr 2.54 2.89 3.75 4.01 3.00 3.84 4.01

Current V/Hz ~ 230/50

Degree of protection acc. EN 60529 IPX4D (B22/B33 IPX0D)

Overrun time pump CH sec 60

Overrun time pump DHW sec 20

PMS water pressure CH min./max. bar 0.8 / 2.5

Flow temperature max. °C 85

Available pump height CH kPa 25 25 20 20 25 20 20

PMW water pressure DHW min./max. bar 0.5 / 8

DHW temperature setting (Tin=10°C) °C 60 60 60 60 60 60 60

Threshold DHW l/min 1.5 1.5 1.5 1.5 1.5 1.5 1.5

DHW ﬂ ow (Tin=10°C, DT=35°C) l/min 10.1 11.5 14.9 16.2 12.6 16.1 17.0

DHW ﬂ ow (Tin=10°C, DT=50°C) l/min 6.7 7.7 10.0 10.7 8.6 11.0 11.5

SAP Annual Eﬃ ciency NG % 89.7 89.7 89.7 89.7 89.7 89.7 89.7

Weight boiler + jig (empty) kg 41 41 44 44 43 46 46

Content DHW part l 0.3 0.3 0.3 0.3 0.6 0.6 0.6

ATAG iC-Series

Technical speciﬁ cations Propane (3P)

ATAG iC-Series

Boiler type iC 24 iC 28 iC36 iC 40 iC Economiser Plus 27 iC Economiser Plus 35 iC Econ omiser Plus 39

Type heat exchanger iCon1 iCon1 iCon2 iCon2 iCon1 iCon2 iCon2

O2 (full load) % 5.1

CO2 (full load) % 10.3

Restriction diameter/marking mm 4.10/41 4.10/41 4.60/46 4.60/46 4.10/41 4.60/46 4.60/46

Pre pressure mbar see data plate LPG

Input CH (DHW) (Hi) kW 21.6 (23.9) 21.6 (27.3) 28.8 (35.4) 28.8 (37.9) 21.6 (28.4) 28.8 (36.4) 28.8 (38.3)

Gas consumption max. G31 kg/h 1.90 2.16 2.80 3.00 2.24 2.87 3.00

Gas consumption max. G31 m3/h 1.00 1.14 1.48 1.58 1.18 1.51 1.58

Modulation range CH (80/60°C) kW 8.3- 21.2 8.3- 21.2 19.1 - 28.3 19.1 - 28.3 8.3- 21.2 19.1 - 28.3 19.1 - 28.3

Modulation range CH (50/30°C) kW 9.0 - 23.2 9.0 - 23.2 20.8 - 31.2 20.8 - 31.2 9.0 - 23.2 20.8 - 31.2 20.8 - 31.2

Installation & Servicing instructions ATAG iC-Range

ErP speciﬁ cations according to European Guideline 2010/30/EU

Brand ATAG Boiler type iC 24 iC 28 iC36 iC 40 iC Economiser Plus 27 iC Economiser Plus 35 iC Econ omiser Plus 39

Condensing boiler yes yes yes yes yes yes yes

Combination heater yes yes yes yes yes yes yes

Declared load proﬁ le DHW XL XL XXL XXL XXL XXL XXL

Seasonal space heating energy eﬃ ciency class CH A A A A A A A

Water heating energy eﬃ ciency class DHW A A A A A A A

Pn Power output kW 21 21 28 28 21 28 28

QHE Annual energy consumption GJ 69 69 104 115 69 104 115

AEC Annual electricity consumption DHW kWh 49 51 52 52 57 52 52

AFC Annual fuel consumption DHW GJ 17 17 21 21 20 20 20

ηs Seasonal space heating energy eﬃ ciency CH % 94 94 94 94 94 94 94

ηWH Water heating energy eﬃ ciency DHW % 85 84 90 90 94 96 96

LWA Sound power level, indoors dB 46 46 48 48 46 48 48

P4 nominal output (80/60°C) kW 21.2 21.2 28.3 28.3 21.2 28.3 28.3

P1 30% of nominal output (36/30°C) kW 7.2 7. 2 9.6 9.6 7.2 9.6 9.6

η4 eﬃ ciency at nominal input (GCV) % 88.3 88.3 88.6 88.6 88.3 88.6 88.6

η1 eﬃ ciency at 30% of the nominal input (GCV) % 99.4 99.4 99.5 99.5 99.4 99.5 99.5

elmax kW 0.074 0.074 0.074 0.074 0.074 0.074 0.074

elmin kW 0.021 0.021 0.032 0.032 0.021 0.032 0.032

PSB kW 0.004 0.004 0.004 0.004 0.004 0.004 0.004

Pstby heat loss kW 0.055 0.055 0.055 0.055 0.055 0.055 0.055

Qelec Daily electricity consumption DHW kWh 0.249 0.249 0.240 0.240 0.264 0.238 0.238

Qfuel Daily fuel consumption DHW kWh 22.700 22.961 27.315 27.315 25.649 25.122 25.122

Temperature Control Weathercompensator (outside sensor)

Class of temperature control II II II II II II II

Contribution of temperature control % 2 2 2 2 2 2 2

Package

Seasonal space heating energy eﬃ ciency of package % 96 96 96 96 96 96 96

CH Package Energy Label A A A A A A A DHW Package Energy Label A A A A A A A

Installation & Servicing instructions ATAG iC-Range

4 Dimensions

iC 24 iC 28 iC36 iC 40 iC Economiser Plus 27 iC Econ omiser Plus 35 iC Economiser Plus 39

ATAG iC-Series

Flue gas / Air intake A/B mm 60/100

Gas connection mm 22

CH Flow connection mm 22

CH Return connection mm 22

Condensate drain connection mm 21.5

Cold water connection mm 15

DHW connection mm 15

Installation & Servicing instructions ATAG iC-Range

5 Delivery package

The delivery package of the boiler is composed as follows:

- Boiler frame;

- Boiler with cover;

- Automatic air vent (in boiler);

- Safety valve 3 bar (in boiler);

- Three way valve (in boiler);

- Automatic by-pass (in boiler);

- DHW ﬂ ow restrictor (in boiler);

- Economiser (only economiser-versions)

- Expansion vessel 8 litre / 1 bar (in boiler frame);

- Isolation valves with drainpoint (CH 2x, 1x DHW cold)

- Gas isolating valve;

- Filling loop;

- Mains cold water ﬁ lter;

- Fittings consisting of plugs and screws;

- Outside sensor;

- Drawing template;

- Installation instructions;

- User manual;

- Warranty Card.

The following components are not present in the boiler packaging as a standard and should be included in the installation according to the requirements:

- Flue system;

- External controls.

6 Boiler description

The ATAG iC is a room sealed, condensing and modulating CH boiler equipped with an integrated hot water supply.

The boiler is equipped with a compact stainless steel heat exchanger with smooth pipes. It is a well thoughtout principle using sustainable materials. The boiler burns natural gas to supply heat (LPG conversion kits available). This heat is transferred in the heat exchanger to the water in the CH installation. The rapid cooling oﬀ of the ﬂ ue gases causes condensation. This results in a very high eﬃ ciency. The condensate that is formed, has no negative impact on the heat exchanger and it's operation, and is removed through the internal siphon. This feature requires a condensate drain pipe connected to the drain of the building.

The boiler is equipped with an intelligent control system. The boiler anticipates on the heat demand of the heating installation or hot water demand. This will cause the boiler to tune its capacity to the installation. This means that the boiler will function longer and at a low level.

If an outside sensor is connected, the control system is able to function, depending on the weather. This means that the control system measures the outside temperature and the ﬂ ow water temperature. On the basis of this information the control system calculates optimum ﬂ ow water temperature required for the installation.

The boiler has been tested according to valid CE standards and has a CE certiﬁ cate and >88% Eﬃ cient SEDBUK 2009.

Statement: No banned materials including asbestos, mercury, CFC's have or will not be included in the product.

Installation & Servicing instructions ATAG iC-Range

7 Boiler photo components list

20 21 22 23

W CKG

ATAG iC Figure 7.a

1 Heat exchanger 2 Ignition unit 3 Fan unit 4 Air supply damper 5 Gas valve 6 Automatic de-aerator 7 DHW plate heat exchanger 8 Control unit

T1 Flow sensor T2 Return sensor T3 Hot water sensor F1 DHW ﬂ ow sensor P1 Water pressure sensor

Installation & Servicing instructions ATAG iC-Range

9 Control panel 10 Three-way valve 11 Circulation pump 12 Filling loop 13 Flue gas exhaust 14 Combustion air supply 15 Boiler data plate 16 Expansion vessel

G Gas pipe A Flow pipe CH R Return pipe CH C Condensation pipe K Cold water pipe W Hot water pipe

17 Safety valve 18 DHW Economiser 19 Siphon 20 Isolation valve ﬂ ow CH 21 Isolation valve gas 22 Isolation valve cold water 23 Isolation valve return CH 24 Flue non return valve

8 Mounting boiler frame

Install the boiler in a boiler room in accordance to the actual local regulations BS5440-2:2009.

The installation location of the boiler has to be, and remain, frost-free. The boiler casing is splash water tight (IPX4D) and is suitable to be installed in e.g. a bathroom.

It is NOT necessary to have a purpose provided air vent in the room or internal space in which the boiler is installed. Neither is it necessary to ventilate a cupboard or compartment in which the boiler is installed, due to the extremely low surface temperature of the boiler casing during operation. Therefore the requirements of BS5440:2 may be disregarded.

The boiler can be mounted practically to any wall with the wall frame and the enclosed ﬁ xing equipment. The wall must be ﬂ at and of suﬃ cient strength in order to be able to carry the boiler weight with its water content. Above the boiler there must be at least 210 mm working space in order to be able to ﬁ t a horizontal concentric ﬂ ue system to the rear (See chapter 9.8 for more ﬂ ue options). Make sure there is suﬃ cient service space around the boiler according ﬁ gure 8.a. The location of the boiler can be determined by using the template.

The wall frame allows the possibility to pre-ﬁ t the complete heating and DHW system before ﬁ tting the boiler. Also the ﬂ ue system can be prepared. Finally ﬁ tting of the ﬂ ue system is done after ﬁ tting the boiler. See next page for all options for connection the heating, DHW, condensate, ﬂ ue and gas installation.

Before hanging the boiler to the boiler frame remove the front panel of the boiler ﬁ rst. The front panel is also the air cabinet and is attached to the boiler case with 2 fasteners (A and B) (see ﬁ gure 8.a).

Note that there is an earth cable (when present) to disconnect when removing the boiler front panel. Free space for removing the connector is about 400 mm. Remember to connect this earth cable (when present) when placing back the boiler front panel and take care the wire does not get stuck between front panel and boiler. Always replace and turn the 2 screws tight in the fasteners A and B.

Service dimensions (in mm) Figure 8.a

See chapter 9.8 for further procedure to ﬁ t the boiler onto the boiler frame.

Installation & Servicing instructions ATAG iC-Range

8.1 Wall frame

- Position the boiler frame against the wall using the template and a level.

- Use the level for horizontal positioning and checking the vertical position.

- Drill 4x ø10mm holes, 60mm deep

- Press the nylon wall plug (ø10x55mm) in the holes

- Mount the boiler frame to wall with the 4 coach screws (ø8x60mm) using a 13mm wrench

The boiler frame allows pipe work to be installed behind the boiler.

Note that there are free spaces on the left and right of the expansion vessel. Do not guide pipe work in front of the expansion vessel. The pipe work must be installed at least 10mm inside the front of the frame.

= free space for piping

ATAG i-Serie template and iC-Range boiler frame Figure 8.1.a

Installation & Servicing instructions ATAG iC-Range

9 Connecting boiler

The boiler has the following connection pipes;

- The central heating pipes.

The boiler is provided with isolation valves on the ﬂ ow and return pipe to which the installation can be

connected by means of 22mm compression ﬁ ttings;

- The gas pipe.

The boiler is provided with an isolation gas valve to which the gas line can be ﬁ tted with 22mm

compression ﬁ tting;

- The condensation drain pipe.

It consists of a 25mm ﬂ exible plastic pipe. The drain pipe can be connected to this by means of an open

connection;

- The ﬂ ue gas exhaust system and air supply system.

It consists of a concentric connection 60/100 mm.

- Cold and hot water pipes.

The boiler is provided with a isolation valve on the cold water inlet. The DHW installation can be

connected by means of 15mm compression ﬁ ttings.

See following chapters for detailed information regarding each connection.

It is advisable to clean all of the boiler’s connecting pipes and/or to power ﬂ ush the installation before connecting it to the boiler.

9.1 Central heating system

Connect the central heating system according to the current regulations.

The boiler pipes can be connected to the installation by means of 22mm compression ﬁ ttings. For connecting to thick-walled pipe (welded or ﬁ tted), adapters should be used.

The boiler has a self-adjusting and self-protecting control system for the load. This involves checking the temperature diﬀ erence between the ﬂ ow and return water. Table 9.1.a shows the water displacement the circulation pump can deliver for a particular installation resistance.

If the installation resistance is higher than the value stated, the control system will adjust the load until a temperature diﬀ erence between ﬂ ow and return water is reached that is acceptable for the control system. When the temperature diﬀ erence still remains too high the boiler will switch itself oﬀ and wait until the high temperature diﬀ erential between the ﬂ ow and return water has decreased again.

Pump type Grundfos UPM3 15-75

iC 24 iC 28 iC36 iC 40 iC Economiser Plus 27 iC Economiser Plus 35 iC Economiser Plus 39

Water ﬂ ow rate l/min 15.2 15.2 20.3 20.3 15.2 20.3 20.3

l/h 912 912 1218 1218 912 1218 1218

Permissible installation resistance kPa 25 25 20 20 25 20 20

mbar 250 250 200 200 250 200 200

Installation resistance table 9.1.a

The control system will, if an unacceptable temperature diﬀ erence is detected, repeatedly try to establish a water ﬂ ow. If this does not succeed, the boiler will block itself (code 154).

The boiler is NOT equipped with a built-in internal ﬁ lter. Advice: ATAG Heating Technology Ltd recommend the installation of an in-line ﬁ lter installed into the heating return as close to the boiler as possible. ATAG Heating Technology Ltd recommend the use of the: ATAG iGuard Magnetic ﬁ lter 22mm (Plastic) FC000100, (Brass) FC000200, 28mm (Brass) FC000250.

Installation & Servicing instructions ATAG iC-Range

The boiler is not suitable for installations that are equiped with “open” expansion tanks.

Additives in the installation water are only permitted in consultation with the country distributor. See chapter 9.3 for detailed information.

9.2 Expansion vessel

The iC boilers are featured with a built-in expansion vessel with a capacity of 8 litres and a pre-pressure charge 1 bar. If the expansion vessel size is insuﬃ cient for the CH system, an additional expansion must be installed. The additional expansion vessel should, together with the built-in expansion vessel, be sized to the water content of the installation. The pre-pressure charge depends on the height of the installation above the installed expansion vessel. See Table 9.2.a.

The (additional) expansion vessel should be connected as closely as possible in the return pipe near the boiler.

Installation height above the expansion vessel pre-charge pressure of the expansion vessel

5m 0.5 bar

10m 1.0 bar

15m 1.5 bar

The pressure relief valve outlet is combined with the condensate outlet (see ﬁ gure 9.9.e on page 29).

table 9.2.a

9.3 Water quality

Fill the installation with mains cold water.

In most cases, a heating system can be ﬁ lled with water according to national standards for water and treatment of this water is not necessary. In order to avoid problems with the CH-installations, the quality of the ﬁ lling water has to meet the speciﬁ cations mentioned in table 9.3.a: If the ﬁ lling water does not meet the required speciﬁ cations, you are advised to treat the water to such an extent that it does meet the required speciﬁ cations.

The warranty becomes invalid, if the installation is not being ﬂ ushed and/or the quality of the ﬁ lling water does not meet the speciﬁ cations recommended by ATAG Heating Technology Ltd. Always contact ATAG Heating Technology Ltd in advance, if things are not clear or you wish to discuss any deviations. Without approval, the warranty becomes invalid.

Installation:

- The use of groundwater, demi-water and distilled water is prohibited. (on the next page you will ﬁ nd an explanation of these deﬁ nitions)

- If the mains water quality meets the speciﬁ cations mentioned in table 9.3.a, you can start ﬂ ushing the installation before installing the device.

- Whilst ﬂ ushing, corrosion products (magnetite), ﬁ tting products, cutting oil and other undesirable products have to be removed.

- Another possibility is to remove the pollution by installing a ﬁ lter. The ﬁ lter type has to ﬁ t the type and grain size of the pollution. ATAG Heating Technology Ltd recommends ﬁ lter usage.

- In this case, the whole piping system should be taken into consideration.

- The CH-installation has to be properly vented before using the system. For that purpose, we refer to the commissioning chapter.

- If a regular water top up is required (>5% on an annual basis), then there is a structural problem and an installer has to solve the problem. Regularly adding fresh water to the system also adds additional calcium and oxygen implying that magnetite and calcium residues can continue. The result may be blockages and/or leakages.

- The use of anti-freeze and other additives requires periodical quality checks of the ﬁ lling water in accordance with the period laid down by the additives supplier.

Installation & Servicing instructions ATAG iC-Range

- Chemical additions are to be avoided and should only be used after ATAG Heating Technology Ltd has approved their corresponding use.

- Should you wish to achieve the required water quality by using chemical additives, then this is your own responsibility. The warranty on the product delivered by ATAG Heating Technology Ltd expires, if the water quality does not meet ATAG Heating Technology's speciﬁ cations or the chemical additives have not been approved by ATAG Heating Technology Ltd.

- On installation and during additions or changes at a later stage, ATAG Heating Technology Ltd recommends to keep a record of the type of water used, its quality at the time, and if applicable, which additives and quantities were added.

Parameter Value

Water type Potable water

Softened water

pH 6.0-8.5

Conductivity (at 20°C in µS/cm) Max. 2500

Iron (ppm) Max. 0.2

Hardness (°dH / ppm):

Installation volume/capacity

<20 l/kW

Installation volume/capacity

>=20 l/kW

Oxygen No oxygen diﬀ usion allowed during operation.

Corrosion inhibitors Refer to Additives Attachment

pH increasing or lowering agents Refer to Additives Attachment

Anti-freeze additives Refer to Additives Attachment

Other chemical additives Refer to Additives Attachment

Solid substances Not allowed

Residues of processing water not forming part of the drinking water

table 9.3.a

1-12 °dH / 17-214 ppm

1-7 °dH / 17-125 ppm

Max. 5% ﬁ lling water addition annually

Not allowed

Water quality in DHW facility

Parameter Value

Water type Potable water

pH 7.0-9.5

Conductivity (at 20°C in µS/cm) Max. 2500

Chloride (ppm) Max. 150

Iron (ppm) Max. 0.2

Hardness (°dH / ppm): 1-12 °dH / 17-214 ppm

Number of bacterial colonies at 22°C (number/ml). pr EN ISO 6222

table 9.3.b

- When the amount of chloride is above the required speciﬁ cations mentioned above in table 9.3.b, in case of the use of a combi boiler will void the warranty for DHW parts of the boiler.

Water type deﬁ nition:

Potable water: Tap water compliant with the European drinking water guideline: 98/83/EG dated 3 November 1998. Softened water: Water with partly de-ionised calcium and magnesium. Demi-water: Virtually completely demineralised water (very low conductivity) Distilled water: Water no longer containing minerals.

Max. 100

Installation & Servicing instructions ATAG iC-Range

9.4 Heating systems with plastic pipes

When connecting or using an underﬂ oor heating system, designed with plastic pipes, or plastic pipes are used elsewhere in the installation, one should ensure that the plastic pipes used comply with the DIN 4726/4729 standard. It is set out in this standard that the pipes may not have oxygen permeability higher than 0.1 g/m³.d at 40°C. If the system does not comply with this DIN standard, the underﬂ oor heating component will have to be separated from the central heating appliance by means of a plate exchanger.

No recourse can be made to the terms of the warranty in the event of failure to observe the regulations pertaining to plastic underﬂ oor heating pipes.

9.5 Gas connection in general

The local gas supplier should be consulted, at the installation planning stage, in order to establish the availability of an adequate supply of gas. An existing service pipe must NOT be used without prior consultation with the local gas supplier.

ATAG supplies boilers suitable for natural gas only. Verify the identiﬁ cation plate on the boiler if the boiler is suitable for the gas kind on site. For use with propane gas, the LPG conversion kit has to be installed, see separate conversion instructions.

Make sure that the gas pipe work does not contain dirt, particularly with new pipes.

The complete installation MUST be tested for gas tightness and purged as described in the above code.

The boiler connection is provided with an isolation valve with 22mm compression ﬁ tting, into which the gas line can be ﬁ tted.

9.5.1 Natural gas connection (NG)

The gas supply must comply to the current Gas Safety, Installation & Use Regulations, in accordance with BS.6891.

The nominal inlet working gas pressure measured at the appliance should be 21 mbar +/- 2 mbar for Nat gas (G20). Allowing for the acceptable pressure loss of 1 mbar across the installation pipework, it can be assumed that a minimum permitted operating pressure of 18 mbar will be delivered to the inlet of the appliance. (Reference BS 6400-1 Clause 6.2 Pressure Absorption). When tested at the gas valve, the pressure drop from the meter to the gas valve must not be more than 4 mbar.

9.5.2 Propane gas connection (LPG)

For use with propane gas, the LPG conversion kit has to be installed, see separate conversion instructions.

The LPG installation must comply to the current Gas Safety, Installation & Use Regulations, in accordance with BS:6891

Installing of a LPG installation should only be done by a registered LPG installer.

The tank must be provided with a high pressure regulator with a minimum capacity of 24 kg/h to reduce the tank pressure from 5 to 1.5 bar. The 1.5 bar high pressure gas line should have a minimum diameter of 15mm. In the high pressure gas line a house pressure regulator must be installed. When tested at the gas valve, the pressure drop from the pressure regulator to the gas valve must not be more than 3.8 mbar.

Installation & Servicing instructions ATAG iC-Range

9.5.3 House pressure regulator

Each gas appliance which is connected to the propane installation must be provided with its own house pressure regulator. The house pressure regulator is a third party delivery.

The house pressure regulator must have a minimum capacity of 10 kg/h / 37 mbar and a CE certiﬁ cation.

ATAG advices to install the house pressure regulator as close as possible to the boiler. When placing the regulator inside, a discharge drain of ø6mm must be installed. The discharge drain must be directed outdoor. In case of a discharge the gasses will go outside. If ﬁ tting the regulator outside the regulator should be protected against inﬂ uences of the weather. The (de-) aeration must be positioned downwards (see ﬁ gure 9.5.3.a). ATAG advices to install measure points on all gas line parts to have the possibility to check for pressure loss.

example propane installation ﬁ gure 9.5.3.a

Pre-pressure must be adjusted to 37 mbar by means of the house pressure regulator. The maximum permitted closing pressure may be 5 mbar higher than the maximum pre-pressure.

A too high closing pressure in the low pressure gas line can be caused by a high resistance or jam in this gas line. When the closing pressure keeps increasing the valve in the regulator is not closing correctly. In this case the regulator should be replaced.

9.5.4 Dimensioning of the low pressure gas line

The gas line from the house pressure regulator to the boiler must have the dimensions according the table below.

Pump type Grundfos UPM3 15-75

iC 24 iC 28 iC36 iC 40 iC Economiser Plus 27 iC Economiser Plus 35 iC Economiser Plus 39

Diameter gas line m m m m m m m

ø15mm 3 - - - - - -

ø22mm 30 18 18 18 18 18 18

ø28mm - 30 30 30 30 30 30

Dimensioning low pressure gas line table 9.5.4.a

9.5.5 De-aerating the LPG tank

When placing a new or revised LPG tank the tank must always be de-aerated.

ATAG advices to inform the gas supplier that a central heating boiler is connected to the LPG tank. For the boiler it is absolutely necessary that the tank is free of air. When not the boiler will give ignition problems and will not function. ATAG advices to measure the content of O2 . This value should be lower than 1.3%. Contact the gas supplier in case of doubt.

Installation & Servicing instructions ATAG iC-Range

9.6 Hot water supply

Connection of the drinking water installation should be done according to the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws.

The ATAG iC boiler is ﬁ tted with a stainless steel plate heat exchanger for producing domestic hot water. The boiler does not have a hot water store and in case of a demand for hot water the boiler will heat the domestic water ﬂ owing through the plate heat exchanger up to 60°C (adjustable) instantaneous.

The water mains installation must comply with the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws. See also chapter 9.3.

In regions with a water hardness value higher than 200ppm (2.67 mmol/l), calcium deposits should be removed from the plate heat exchanger on a regular basis. If problems occur when using sanitary water with a chlorine content higher than 150 mg/l, no recourse can be made to the terms of the warranty.

In order to prevent calciﬁ cation ATAG recommends applying a water softener. ATAG recommends the use of for instance AlphaPhos for cleaning plates exchangers. The hardness of the water is variable in the United Kingdom. The water company can provide exact information about this. The domestic water installation can be connected to the boiler by means of 15mm compression ﬁ ttings. If the mains is ﬁ tted with water meter, check valves or loose jumper stop cock, then a DHW expansion device must be ﬁ tted. The boiler is provided with a DHW ﬂ ow restrictor. The ﬂ ow restrictor ensures that a quantity of water supplied has a guaranteed temperature of 60 °C (assuming a cold water temperature of 10°C). The amount of water is virtually unaﬀ ected by the water pressure. After installation, check the hot water ﬂ ow rate with a fully opened hot water tap, If required the ﬂ ow restrictor can be removed. See chapter 16.1.

9.7 Condensation drain pipe

The ATAG condensing boiler has the >88% Eﬃ cient SEDBUK 2009 for high energy eﬃ ciency in heating and domestic hot water. The ATAG wall hung gas ﬁ red condensing boiler contain a siphonic condensate trap to collect and realease condensate. The amount of condensate formed is determind by the type of boiler and the water temperature produced by the boiler.

Condensate pipework.

Use plastic pipework of an internal diameter no less then 19mm ID (typically 22mm OD).

Routing of the pipework,

The condensate pipework must fall at least 45mm per metre away from the boiler, taking the shortest practicle route to the termination point. Support the pipe at least every 50 cm for near horizontal sections and 1 metre for vertical sections. Wherever possible, the condensate pipework should be routed internally to prevent freezing. In order to minimise the risk of freezing during prolonged very cold spells, one of the following methods of terminating condensate drainage pipe should be adopted.

Internal pipework

Wherever possible, the condensate drainage pipe should be terminated at a suitable internal foul water discharge point such as (a) an internal soil and vent stack or (b) an internal kitchen or bathroom waste pipe, washing machine waste pipe etc. A suitable permanent connection to the foul waste pipe should be used. Figures 9.7.1, 9.7.2(a), 9.7.2(b) show appropriate connection methods. The possibility of waste pipes freezing downstream of the connection point should be considered when determining a suitable connection point - e.g. a slightly longer pipe run to an internal soil stack may be preferable to a shorter run connecting into a kitchen waste pipe discharging directly through the wall to an external drain. Where “gravity discharge” to an internal termination is not physically possible (e.g. the discharge point is above the appliance location, or access is obstructed by a doorway), or where very long internal pipe runs would be required to reach a suitable discharge point, the following measures may be adopted.

Installation & Servicing instructions ATAG iC-Range

1 Boiler 2 Visible air break 3 75mm trap 4 Soil and vent stack 5 Invert 6 450mm minimum up to three storeys 7 Minimum internal diameter 19mm (fall at least 45mm per meter)

Drain requirements Figure 9.7.1 Drain requirements Figure 9.7.2 (a)

1 Boiler 2 Visible air break 3 75mm trap 4 Sink, basin, bath or shower 5 Open end of condensate drainage pipe direct into gully 25mm

min below grating but above water level; end cut at 45° 6 Sink lip 7 Minimum internal diameter 19mm (fall at least 45mm per meter) 8 Pipe size transition 9 Minimum internal diameter 30mm 10 Water/weather proof insulation

1 Boiler 2 Visible air break 3 Visible air break at plug-hole 4 75 mm sink, basin, bath or shower waste trap 5 Sink, basin, bath or shower with integral overﬂ ow 6 Open end of condensate drainage pipe direct into gully 25mm

min below grating but above water level; end cut at 45° 7 Minimum internal diameter 19mm (fall at least 45mm per meter) 8 Pipe size transition 9 Minimum internal diameter 30mm 10 Water/weather proof insulation

Drain requirements Figure 9.7.2 (b)

1 Condensate discharge from boiler 2 Visible air break 3 Condensate pump 4 Visible air break at plug hole 5 Sink or basin with integrated overﬂ ow 6 75mm sink waste trap

Drain requirements Figure 9.7.3

Installation & Servicing instructions ATAG iC-Range

Use of a condensate pump (to an internal termination):

Condensate can be removed using a proprietary condensate pump (third party delivery), of a speciﬁ cation recommended by the pump manufacturer. Condensate pump suitable for combined pressure relief valve. The pump outlet should discharge to a suitable internal foul water discharge point, such as (a) an internal soil and vent stack or (b) an internal kitchen or bathroom waste pipe, washing machine waste pipe etc. Figure

9.7.3 shows a typical connection method. A suitable permanent connection to the foul waste pipe should be used and the manufacturer’s detailed installation instructions for the pump should be followed.

External pipework

The use of an externally-run condensate drainage pipe, terminating at a suitable foul water discharge point or purpose-designed soakaway, may be also be considered; however if this termination method is chosen then the following measures should be adopted

- The pipe should be run internally as far as possible before going externally and the pipe diameter should be increased to a minimum of 30mm ID (typically 32mm OD) before it passes through the wall.

- The external run should be kept as short as possible, taking the most direct and “most vertical” route possible to the discharge point, with no horizontal sections in which condensate might collect. Do not exceed 3 metres outside the dwelling.

- The external pipe should be insulated using suitable waterproof and weatherproof insulation (“Class O” pipe insulation is suitable for this purpose) .

- The use of ﬁ ttings, elbows etc should be kept to a minimum and any internal “burrs” on cut pipework should be removed so that the internal pipe section is as smooth as possible.

The customer/householder should be advised that even with the above measures this type of installation could freeze, and that if this were to occur then boiler shutdown could result, requiring remedial action possibly involving a chargeable engineer call-out.

Where there are likely to be extremes of temperature or wind-chill, the use of a proprietary trace-heating system for external condensate drainage pipework, incorporating an external frost thermostat, should therefore be considered. If such a system is used then the installation instructions of the trace heating manufacturer and any speciﬁ c recommendations regarding pipe diameter, insulation, etc. should be followed. All other relevant guidance on condensate drainage pipe installation should also be followed.

Other cold weather protection methods approved or endorsed by boiler manufacturers and/or service organisations may be adopted if these are considered suitable by the parties involved.

If an external soil/vent stack is used as the external termination then the connection method shown in Figure

9.7.4 should be used, together with the measures on insulation etc. as described above and shown in the diagram. When a rain water downpipe is used as the termination (NB only permissible if this downpipe passes to a combined foul and rainwater drainage system) an air break must be installed between the condensate drainage pipe and the downpipe to avoid reverse ﬂ ow of rainwater into the boiler should the downpipe itself become ﬂ ooded or frozen. Figure 9.7.5 shows a suitable connection method.

Where the condensate drainage pipe is terminated over an open foul drain or gully, the pipe should terminate below the grating level, but above water level, in order to minimise “wind chill” at the open end. Pipe drainage will be improved if the end is cut at 45° as opposed to a straight cut. The use of a drain cover (such as those used to prevent blockage by leaves) may oﬀ er further protection from wind chill. Figure 9.7.6 shows a suitable connection method.

Where the condensate drain pipe terminates in a purpose-designed soakaway (see BS 6798:2014 or boiler installation manual for soakaway design requirements) any above-ground section of condensate drainage pipe should be run and insulated as described above. Figure 9.7.7 shows a suitable connection method.

Unheated internal areas:

Internal condensate drainage pipes run in unheated areas such as lofts, basements and garages should be treated as external pipe.

Draining of the condensation water to the external rain guttering is not permitted in view of the danger of freezing.

Before putting the boiler into operation ﬁ ll the siphon with 150 ml of water.

Installation & Servicing instructions ATAG iC-Range

1 Boiler 2 Visible air break 3 75mm trap 4 Soil and vent stack 5 Invert 6 450mm minimum up to three storeys 7 Minimum internal diameter 19mm (fall at least 45mm per meter) 8 Pipe size transition 9 Minimum internal diameter 30mm 10 Water/weather proof insulation

Drain requirements Figure 9.7.4 Drain requirements Figure 9.7.5

1 Condensate discharge pipe from boiler 2 Pipe size transition point 3 Water/weather proof insulation 4 43mm 90° male/female bend 5 External rain water pipe into foul water 6 External air break 7 Air gap 8 68 mm ø PVCu strap-on ﬁ tting 9 Minimum internal diameter 19mm 10 Minimum internal diameter 30mm 11 End cut at 45°

1 Boiler 2 Visible air break 3 38mm minimum trap 4 External length of pipe 3m maximum 5 Open end of condensate drainage pipe direct into gully 25mm

min below grating but above water level; end cut at 45° 6 Minimum internal diameter 19mm (fall at least 45mm per meter) 7 Pipe size transition point 8 Minimum internal diameter 30mm 9 Water/weather proof insulation

Drain requirements Figure 9.7.6

1 Condensate discharge pipe from boiler 2 Ground (this section of the condensate drainage pipe may be

run either above or below ground level); End cut at 45° 3 Diameter 100mm minimum plastic tube 4 Bottom of tube sealed 5 Limestone chippings 6 Two rows of three 12mm holes at 25mm centres, 50mm from

bottom of tube and facing away from house 7 Hole depth 400mm minimum by 300mm diameter 8 Minimum internal diameter 19mm (fall at least 45mm per meter) 9 Pipe size transition point 10 Minimum internal diameter 30mm 11 Water/weather proof insulation

Drain requirements Figure 9.7.7

Installation & Servicing instructions ATAG iC-Range

9.8 Flue gas exhaust system

The ﬂ ue gas exhaust system and air supply system consists of:

- Flue gas pipe;

- Air supply pipe;

- Roof or wall terminal.

The ﬂ ue gas exhaust system and air supply system must comply with:

The ﬂ ue gas outlet and air supply installation must comply with the current regulation requirements in accordance with BS:5440 Part 1 and 2.

The ATAG iC boiler as described in this manual is NOT suitable for a combined ﬂ ue system.

The appliance concentric connection diameter is 60/100 mm, to which the ﬂ ue gas outlet and air supply system can be ﬁ tted, with or without elbow pieces. The maximum permissible pipe length is set out in Table

9.8.2.a.

For further information about the available components of the ﬂ ue gas and air supply system we recommend you consult the Flue system literature. Combinations with other brands or systems are, without written permission from ATAG Heating, not permitted.

The ATAG ﬂ ue gas system is meant, and designed, solely for the use on ATAG central heating boilers adjusted to Nat gas or LPG. For this purpose the CE Certiﬁ cate has been supplemented under the Gastec nr: 0063CQ3634 The maximum ﬂ ue gas temperatures are below 70°C (full load 80/60°C).

The proper operation may be adversely inﬂ uenced by changes of or adjustments to the correct set up. Possible warranty claims will not be honoured if incorrect changes result in non compliance with the installation manual or local rules and regulations.

Room sealed system

Boiler Class C

Permitted only when the air

P/A

LEGEND: P/A Polypropylen / Aluminium

intake and the ﬂ ue gas outlet are in the same pressure area.

P/A P/A P/A

Room sealed system Figure 9.8.a

Installation & Servicing instructions ATAG iC-Range

9.8.1 Flue terminal locations

The terminal should be located where dispersal of combustion products is not unimpeded and with due regard for the damage or discolouration that might occur to parts of the building in the vicinity (see ﬁ g

9.8.1.c).

In certain weather conditions condensation may also accumulate on the outside of the air inlet pipe. Such conditions must be considered and where necessary insulation of the inlet pipe may be required. In cold and/or humid weather water vapour may condense on leaving the ﬂ ue terminal. The eﬀ ect of such ‘plumeing’ must be considered.

The terminal must not be located in a place where it is likely to cause a nuisance, where the terminal is less than 2m (6.6ft) above a pavement or platform to which people have access (including) any balcony or ﬂ at roof. The terminal must be protected by a guard of durable material.

Where a terminal is ﬁ tted below a window which is hinged at the top, and where the hinge axis is horizontal, and the window opens outwards, the terminal shall be 1m below the bottom of the window opening.

The ﬂ ue must be terminated in a place not likely to cause a nuisance.

For horizontal ﬂ ue terminal direct to the rear or side through the wall (only 1 bend and 1 wall terminal) the terminal should be placed horizontal. The ﬂ ue pipe inside the terminal is ﬁ tted in a 3 degrees angle to ensure the condensation water can run back to the boiler. See ﬁ gure 9.8.1.a.

For longer horizontal sections, the outlet system should always be ﬁ tted on an incline (52 mm/m = 3°) sloping down towards the boiler so that no condensation water is able to accumulate in the outlet system. The chances of icicles forming on the outlet is minimised by causing the condensation water to run back towards the boiler. See ﬁ gure 9.8.1.b.

Figure 9.8.1.a

Figure 9.8.1.b

Installation & Servicing instructions ATAG iC-Range

Terminal position Min. distance (mm)

A Directly below an opening, air brick, windows, etc. 300 (See Note 1)

B Below gutters, soil pipes or drain pipes 75 (See Note 3)

C Below eaves 200 (See Note 3)

D Below balconies 200 (See Note 3)

E From a vertical drain pipe or soil pipe 150 (See Note 3)

F From an internal or external corner 300 (See Note 2)

G Above ground, roof or balcony level 300

H From a surface or boundary facing the terminal 600 (See Note 4)

I F rom a terminal facing the terminal 1200

J Above an opening, air brick, window etc. 300 (See Note 1)

K Vertically from a terminal on the same wall 1500

L Horizontally from a terminal on the same wall 300

M Horizontally from an opening, air brick, window etc. 300 (See Note 1)

N Minimum protrusion through a roof 300

O From a vertical obstruction 300

P From an openable window 600

Q From an adjacent vertical terminal 600

R From an opening in the car port (e.g. door, window) into the dwelling 1200

S Below a roof window 2000

T Terminal parallel to a boundary 300

Figure 9.8.1.c

Notes:

1. In addition, the terminal should not be nearer than 150mm to the framework of an opening into the building, i.e. a window surround or door surround.

2. This clearance may be reduced to 25mm without eﬀ ecting the performance of the boiler. However, to ensure the condensate plume does not aﬀ ect adjacent

surfaces a clearance of 300mm is preferable.

3. These clearances may be reduced to 25mm without eﬀ ecting the performance of the boiler. However, to ensure the condensate plume does not aﬀ ect adjacent surfaces the terminal can be extended beyond gutters, pipes, eaves, balconies etc.

4. To reduce the possibility of nuisance to neighbouring buildings etc. it is recommended the terminal should not be less than 2500mm from car parking spaces, building boundary walls, fences etc.

5. A terminal must not be sited under a car port roof.

6. In certain weather conditions the terminal will emit a plume of steam. If possible avoid positioning the terminal where this may cause a nuisance, i.e. positions A,

D, G, H, J or M.

7. The ﬂ ue terminal must be exposed to the external air and the position must allow the free passage of air across it at all times.

8. A terminal must not be sited below 2m where people have access to, such as public footpaths, access routes, patios etc. However, If the terminal is ﬁ tted less

than 2m above a surface where there is no public access, the terminal must be protected by a terminal guard.

Installation & Servicing instructions ATAG iC-Range

The appliance produces a white wisp of condensate (plumeing). This wisp of condensation is harmless, but can be unattractive, particularly in the case of outlets in outside walls. For wall terminals a plume management kit is available as an option (see ﬁ g. 9.8.1.d).

Plume management kit Figure 9.8.1.d

Figure 9.8.1.e

Terminal position Plume Management Kit (mm)

1 Clearance no less than 200 mm from the lowest point of the balcony or overhang.

2 1.200 mm from an opening in a car port on the same wall i.e. door or window leading into dwelling.

3 The ﬂ ue cannot be lower than 1.000 mm from the top of the light well due to the build up of combustion products.

4 1.200 mm between air intake and facing terminal.

5 Internal/external corners. The air intake clearance can be reduced to 150 mm providing the ﬂ ue exhaust outlet has a 300 mm clearance.

6 600 mm distance to a boundary or surface facing a boundary, unless it will cause a nuisance.

BS 5440: Part 1 recommends that care is taken when siting terminals in relation to boundaries.

Notes:

1. See also Notes on previous page.

2. Plume kits running horizontally must have a 10° fall back to the boiler for proper disposal of condensate.

3. For details on speciﬁ c lengths see relevant chapter Dimensioning of the ﬂ ue gas and air intake duct.

4. A terminal must not be sited under a car port roof.

Installation & Servicing instructions ATAG iC-Range

9.8.2 Dimensioning of the ﬂ ue gas and air intake duct

The total length of the run of the ﬂ ue is determined by the ﬂ ue diameter, including for the connection pipe, elbows ﬁ ttings and terminal covers etc.. An incorrect dimensioned ﬂ ue system can lead to disorders. Look at table 9.8.2.a for the choice of the boiler and the corresponding maximum equivalent ﬂ ue length.

Explanation table 9.8.2.a:

Concentric ﬂ ue gas system: maximum noted length L = distance between boiler (from elbow or vertical adapter) and the end of terminal

When using bends the noted value behind every bend should be deducted from the maximum straight length. See example.

Dimensions ﬂ ue gas system and air supply system Concentric ﬂ ue system ø60/100 (Horizontal & Vertical)

Type iC 24 iC 28 iC Economiser Plus 27 iC 36 iC 40 iC Economiser Plus 35 iC Economiser Plus 39

Maximum equivalent length (L) m 13 6

45° bend resistance length m -1.0 -1.0

87° bend resistance length m -1.6 -1.6

Concentric ﬂ ue system ø80/125 (Horizontal & Vertical)

Type iC 24 iC 28 iC Economiser Plus 27 iC 36 iC 40 iC Economiser Plus 35 iC Economiser Plus 39

Maximum equivalent length (L) m 50 45

45° bend resistance length m -1.9 -1.9

87° bend resistance length m -3.0 -3.0

Tabel 9.8.2.a

Example:

An iC28 with a concentric ﬂ ue gas system ø60/100mm has according to the table a maximum ﬂ ue straight length of 18m In the system that is going to be put in there are 2 x 45° bends, so the maximum ﬂ ue gas length is 18 – ( 2 x -1.0 ) = 16m.

Flue dimensions

Rear Flue B (mm)

Min Max

Telescopic ﬂ ue (FA100105) 280 430

Side Flue B + C (mm)

Telescopic ﬂ ue (FA100105) 285 435

Installation & Servicing instructions ATAG iC-Range

Min Max

Rear Flue L = wall thickness (B) + 150mm

Side Flue L = wall thickness (B) + distance between boiler and wall (C) + 150mm

If the length L is more than 580mm rear ﬂ ue or 585mm side ﬂ ue, then a Horizontal ﬂ ue ﬁ xed length 1000mm (60/100mm) with elbow (FA100205) will need to be used instead, up to 810mm.

Figure 9.8.2.a

Fitting the ﬂ ue

Note: If it is required to cut an extension, DO NOT cut the end of the inner duct that incorporates the seal

joint. Ensure the inner duct end without the seal joint is cut so that it is ﬂ ush with the outer duct. Ensure that all cuts are square and free from burrs. Once assembled with the components pushed home, the ﬂ ue is fully sealed.

1. Adjust the telescopic ﬂ ue and secure with sealing tape supplied or cut the ﬁ xed length terminal ﬂ ue to the required length.

2. Fit the ﬂ ue to the extensions (if required) by locating the inner duct into the seal joint and push fully home the inner and outer duct.

3. When connecting the horizontal ﬂ ue terminal length ensure the terminal end outlet is at the uppermost part of the ﬂ ue.

4. Pass the terminal ﬂ ue assembly through the wall.

5. Fit the bend to the boiler turret.

6. If the inside sealing collar (white) is being used, then it will need to be ﬁ tted before assembling the ﬂ ue and making good the inside wall.

7. Pull the ﬂ ue assembly towards the bend, locating the inner duct into the seal joint on the bend and secure the ﬂ ue assembly to the bend by pushing fully home (Outer ﬂ ue duct must be seen through the small inspection hole to conﬁ rm fully home).

8. Make good the outside wall and ﬁ t the outside sealing collar onto the location provided immediately behind the ﬂ ue terminal grille.

When mounting the ﬂ ue gas system, pay attention to the ﬂ ow direction (See ﬁ gure 9.8.2.b). It is not permitted to mount a system upside down and will lead to complaints.

Use a soap solvent or special grease (supplied in the accessory bag with the boiler) to simplify the ﬁ tting.

The ATAG ﬂ ue system used is a push ﬁ t ﬂ ue system, which does not require screws to be ﬁ tted at each ﬂ ue joint.

The ﬂ ue system must be adequately supported at regular intervals between brackets of no more than 1.0 metres for horizontal sections and no more than

2.0 metres for vertical sections.

Flow direction Figure 9.8.2.b

Installation & Servicing instructions ATAG iC-Range

9.9 Fitting the boiler onto the boiler frame

After the pipe work of gas, heating installation and DHW installation has been ﬁ tted to the boiler frame, the boiler can be placed on the boilerframe. Before hanging the boiler to the boiler frame remove ﬁ rst the cover of the boiler ﬁ rst. The cover is also the air cabinet and is attached to the boiler case with 2 fasteners (A and B) (see ﬁ gure 8.a).

Note that there is an earth cable (when present) to disconnect when removing the cover from the boiler. Free space for removing the connector is 400mm. Remember to connect this earth cable (when present) when replacing the cover.

Always replace and turn the 2 screws tight in the fasteners A and B after replacing the cover.

Remove furthermore the 6 plastic caps from the boiler connections.

When removing the plastic sealing caps from the pipes, contaminated testing water may be released.

Lift the boiler only by the boilers case.

Lifting and carrying precautions:

- Lift only a manageable weight, or ask for help.

- When lifting the boiler, bend the knees, and keep the back straight and feet apart.

- Do not lift and twist at the same time.

- Lift and carry the boiler close to the body.

- Wear protective clothing and gloves to protect from any sharp edges.

Place mains water ﬁ lter in cold water inlet

1 2

Figure 9.9.a

1. Press all connection underneath the boiler upwards

2. Put on each valve and the elbow ﬁ tting a ﬁ bre washer (supplied)

3 and 4. Take the boiler and hang it from approx. 50mm higher than the boiler frame vertical downwards on the boiler frame so the ﬁ ttings will be axial approached.

Figure 9.9.b

Installation & Servicing instructions ATAG iC-Range

Figure 9.9.c

Fitting the nuts:

Turn each nut of the ﬁ ttings on the boiler connections by hand and tighten each nut with a wrench.

Figure 9.9.d

Fitting expansion vessel hose:

Take the end of the ﬂ exible expansion vessel hose and ﬁ t it to the 3/8" boilers expansion vessel connection using a ﬁ bre washer.

iR-Range only*

Note:

Pressure relief valve outlet is combined with condensate outlet.

Figure 9.9.e

Fitting siphon:

- Press and turn the assembly (3), with the elbow ﬁ rst, in the corresponding holes in the bottom plate of the boiler.

- Press the black ﬂ exible pipe (1) from inside the boiler in the rubber T-piece (3).

- Press the black rubber elbow with ﬂ exible drain pipe (1) on the condensate tray (2)

- Lead the long black ﬂ exible pipe (4) through the free hole of the boiler frame and press it in the T-piece (3)

- Lead the other end of the ﬂ exible pipe outside the boiler to the drain as installed according to the installation and service manual.

- Fill the siphon cup (5) with 150 ml water, insert the siphon pipe (6) in the siphon cup (do not press) and insert this through the hole in the bottom plate of the boiler into the condensate tray (2) of the heat exchanger. Secure the siphon cup with the securing clip (7) by turning it clockwise (click!).

- Press the sealing ring (8) around the siphon cup and press/turn it in the bottom plate of the boiler.

* iR-Range only: Press the black rubber plug (9) from inside the boiler in the rubber elbow of assembly (3).

- Open the plug of the elbow of assembly (1) and push the ﬂ exible transparent tube from the automatic deaerator in the opening (10). NOTE: The plug remains closed when the ﬂ exible transparent tube

from the automatic deaerator is not connected.

Before putting the boiler into operation ﬁ ll the siphon with 150 ml of water.

Installation & Servicing instructions ATAG iC-Range

10 Electrical connection

The appliance complies with the actual directives. The installation must continue to comply with:

- A 230V -50Hz mains electrical supply is required fused externally at 3A.

- A deviation on the grid of 230V (+10% or -15%) and 50Hz

- the national rules for electrical installations.

The appliance must be connected to an earthed socket. This must be visible and within reach.

The following general stipulations also apply:

- No changes may be made to the wiring of the appliance;

- All connections should be designed in accordance with the enclosed regulations;

- Should it be necessary to change it, the mains power supply cable may only be replaced with an ATAG mains power supply cable.

The connection terminals are positioned at the back of the control unit:

- Press handle A slightly to the left (see ﬁ g. 10.a)

- Turn the control unit downwards.

Terminal block iC-Range

230V control terminal block iC-Range

SwL: Switched live

L: Live

N: Neutral

E: Earth

230V live input only!

230V live output

ATAG Outside sensor 1kOhm*

n.a. = not applicable

ATAG programmer for DHW timer

ATAG programmer for CH timer

On/oﬀ room thermostat Volt free

Bus = OpenTherm controller / room thermostat

terminal block Figure 10.a

Installation & Servicing instructions ATAG iC-Range

* Mounting on north – north/east facade of the house.

Prevent outside inﬂ uences such as snow, ventilation air or chimney heat.

DO NOT CONNECT 230VOLT

10.1 One controller, OpenTherm and BUS connection (blue)

The blue BUS connection can only be used for the ATAG ONE controller (CT000111), an OpenTherm controller or the ATAG 7 Day Two Channel Plug-In Digital Programmer (CT200002).

10.2 Room thermostat volt free connection (black)

A volt free on / oﬀ room thermostat or a programmable room thermostat with volt free connections can be wired to the black volt free room thermostat connector position.

The ATAG 7 day, Single Channel Digital Wireless Programmer and Room Thermostat (CT200001) or ATAG 24 hour, Single Channel Mechanical Wireless Programmer and Room Thermostat (CT100002) both come with the receiver ﬁ tted within a replacement facia panel for the front of the boiler and their volt free plug connects into this Room thermostat volt free connections (black).

10.3 ATAG Central Heating volt free timer connection (white)

The ATAG 24 hour, Single Channel Plug-in Mechanical Timer (CT100001) comes ﬁ tted within a replacement facia panel for the front of the boiler and the volt free plug connects into this Central Heating volt free connection (white). This enables the boiler to be available for heating during the set times of the timer. A volt free room thermostat is still required to be connected to the Room thermostat volt free connection (Black) to create a demand for heat via a room stat.

10.4 ATAG Hot Water volt free timer connection (white)

This connection enables and disables the boiler to provide hot water during the set times if a speciﬁ c timer was connected.

10.5 DHW sensor connection (yellow)

N/A not applicable.

10.6 ATAG Outside sensor (orange)

When a weather compensation sensor (supplied with the boiler) is used, the two wires from the outside sensor get wired into the plug supplied with the sensor and connect onto the orange connector position.

10.7 230V Control Block (230V live output)

If a live, neutral or earth wire is required for an external clock/programmer these can be taken from the (L) live, (N) Neutral or (E) earth 230V live output connections on the 230v control terminal block. If an external 230V clock/programmer is used, then a switched live is required from the control(s) to connect to the 230V control terminal block in position (SwL) Switched live to ﬁ re up the boiler.

10.8 230V Control Block (SwL Switched live)

If a 230V room thermostat is used, then a switched live is required from the control(s) to connect to the 230V control terminal block in position (SwL) Switched live to ﬁ re up the boiler. This could be in series after the clock/programmer to the room stat, then to SwL on the 230V control terminal block.

Installation & Servicing instructions ATAG iC-Range

10.9 Electrical diagram

Installation & Servicing instructions ATAG iC-Range

Figure 10.7.a

11 Filling system

The central heating installation needs to be ﬁ lled with potable water according to the requirements in chapter

9.3 'Water quality'. For ﬁ lling or topping up the installation use the ﬁ lling loop according to the following procedure (see ﬁ gure 11.a):

1 Attach the ﬁ lling loop pipe to the ﬁ lling loop assembly (between position 1 and 2);

2 Open the ﬁ lling loop valves A and B;

3 Slowly ﬁ ll the central heating system up to 1.0 – 1.2 bar;

(at the bottom left a pressure gauge indicates the water pressure in the central heating system)

4 Close the ﬁ lling loop valves A and B;

5 Vent the entire heating installation starting at the lowest point;

6 Check the water pressure and top up if necessary to 1.0 – 1.2 bar;

7 Check the ﬁ lling loop valve is closed;

When powering up the boiler (described in chapter 13) an automatic de-aeration program will run to vent the boiler. During this program the pressure in the central heating needs to be checked, and when necessary, topped up again.

It may take some time before all the air has disappeared from a ﬁ lled installation. Certainly during the ﬁ rst week sounds may be audible that indicate air. The automatic air vent in the boiler will let this air escape, causing the water pressure to drop during this period and water will need to be reﬁ lled again.

Always remove the ﬁ lling loop pipe after ﬁ lling or topping up the heating system and close the connections with the cap nut (3).

Figure 11.a

11.1 Hot water supply

Fill the hot water supply by opening the cold mains isolation valve.

Bleed the hot water installation by opening all hot water taps one at a time. Leave each tap to run until all air has disappeared from the supply. Flush with a minimum of 10 litres to rinse any residual contaminants from the hot supply and boiler.

Installation & Servicing instructions ATAG iC-Range

12 Boiler controls

Before the electrical power is switched on, it helps to know the operation of the boiler in advance. On this page the controls are described in short. The next page describes the button functions and the symbols on the display.

The boiler is equipped with self-managing control system. This control system takes over a large part of the manual settings, which simpliﬁ es the start-up of the installation considerably.

After ﬁ lling the installation and switching on the electrical power supply a short start-up program is activated. This shows all digits, boiler type and software version and the automatic de-aeration program is activated. The automatic de-aeration program lasts for approx. 7 minutes and stops automatically. The boiler ﬁ res up for DHW to bring the primary heat exchanger to the set comfort temperature. Then the boiler will switch on for the enabled program (CH or DHW) (See chapter 11 ‘Filling and bleeding boiler and installation’).

DHW controls (combination boilers)

If a hot water tap is opened the ﬂ ow sensor measures (F1) the amount drawn oﬀ . Depending on the desired DHW temperature and volume the controls will calculate an output. This realises the desired water temperature in an eﬃ cient way. The hot water sensor (T3) will adjust any minor deviations caused by temperature ﬂ uctuations so that even under these circumstances the desired temperature is constant.

CH controls

With a demand from the heating controls after DHW demand, the boiler activates its 1 minute delay period. This is to prevent the heat exchanger from losing its heat too quickly in the event of a hot water demand. Then the pump starts and after 30 seconds the gradient control becomes active. The starting point of the gradient control is the currently existing ﬂ ow temperature. A Delta-T control (25K) ensures a stable control according to heat request. If the ﬂ ow temperature is below the T-set value of 20°C the boiler will immediately start. If during a demand from the heating the burner switches oﬀ , because the desired ﬂ ow temperature is exceeded, there will be an anti-cycle time in operation for 5 minutes. This means that the burner switches on again after 5 minutes if there is still a demand from the heating.

Resistance table table 12.a

The ATAG iC is equipped with boiler sensors of 10kOhm. The resistance value and corresponding temperature are shown in the accompanying table.

Installation & Servicing instructions ATAG iC-Range

12.1 Controls and explanation of the functions

Hot water

Setting the hot water temperature: Brieﬂ y press + or – ; the display will show the ﬂ ashing preset value; Brieﬂ y press + or – to change the set value. Each change becomes active directly.

Hot water program OFF: Press – until the lowest value is reached and then press – again. The display is showing - - .

Switching on works in reverse order.

Central heating

Setting the CH water temperature: Brieﬂ y press + or – ; the display will show the ﬂ ashing preset value; Brieﬂ y press + or – to change the set value. Each change becomes active directly.

CH program OFF: Press – until the lowest value is reached and then press – again. The display is showing - - .

Switching on works in reverse order.

Boiler information

Requesting current data: Press the eco-button for 6 seconds in order to obtain the following value using the scroll buttons:

A0 Flow water temperature in °C

scroll

A1 Return water temperature in °C

A2 DHW temperature in °C

ESC

A3 T-set temperature (calculated) in °C

A4 Flue gas temperature (only if a ﬂ ue gas sensor is connected) in °C

A5 Outside temperature (only if an outside sensor is connected) in °C

A6 Water pressure in bar

A7 DHW ﬂ ow in l/min.

Ionisation current in A.

A9 rpm of fan (x100)

To return to the standard view press ESC.

Reset button

The reset button allows the boiler to restart if an error has occurred. In case of an error the symbol is displayed with a XXX code. In other cases the Reset button does not function and will not respond to operation. See chapter 17 for a brief overview of codes

Ancillary functions:

Both + buttons = Commissioning-mode for checking the CO

CH + button = OK (conﬁ rm)

DHW Button: Scroll function (‘scrolling’ through parameters)

CH – button = ESC function (back to standard display)

Both – buttons: Pump continuous on/oﬀ

Installation & Servicing instructions ATAG iC-Range

13 Commissioning the boiler

Make sure before the boiler is put into operation that the boiler and installation have been fully vented. Vent the gas line and open the gas isolation valve to the boiler. The boiler requires no adjustment of the burner pressure and quantity, because it is self-regulatory and has been set in the factory and should not be reset.

1. Turn on the boiler electrical supply;

2. When the boiler starts up for the ﬁ rst time the following will be shown:

- - (power on)

All digits (segment test)

0 (parameter 9: from factory 0) 1 (boilertype: parameter 8) 03 followed by 03 (software version part 1 and software version part 2)

3. The code 105 appears on the display; The 7 minute de-aeration cycle starts;

4. Vent the entire heating installation starting at the lowest point;

5. Check the water pressure and top up if necessary to 1.0 – 1.2 bar;

6. Check the ﬁ lling loop if it is closed;

Waterpressure

The iC boiler is supplied with a pressure sensor. This sensor control has following settings:

0.5 bar: below this pressure the burner is blocked for operation

0.5 to 0.8 bar: boiler output reduced to max. 80%

0.8 to 3.0 bar: boiler fully functional

3.0 bar: above this pressure the boiler is blocked for operation.

Next to this the pressure sensor is used to set the boiler free before every start. Before the burner is set free the boiler does a pump check, it checks for an increase in pressure when the pump starts. If there is an increase of water pressure, the boiler will ﬁ re up. If there is no increase the burner is blocked.

If the water pressure drops below 0.8 bar code 118 will appear in the display; The de-aeration program starts (code 105) when the water pressure has been below

0.5 bar. Between 0.5 and 0.8 bar the display shows code 118 and the boiler will run on a reduced output of max. 80%

The automatic de-aeration program will take approx. 7 minutes and will be followed by the default display (OK) if the water pressure is above 0.8 bar.

The boiler will switch on immediately to reach the desired pre-heat temperature (approx. 50°C) of the hot water supply (Comfort setting).

Installation & Servicing instructions ATAG iC-Range

a Hot water supply

The DHW program is always active after start-up. This is indicated by . If there is hot water request, this is indicated by a ﬂ ashing and the hot water supply

will be activated. The circulation pump will start and the boiler will switch on .

Comfort and eco

By default the hot water supply is set to Comfort. A change to Eco is possible by means of pressing the eco-button. On the display appear 'eco'. The eco-position will result in a possible longer DHW waiting time, because the boiler will not being ﬁ red up for pre-heating the hot water supply.

b CH system

The CH program is always active after start-up. This is indicated by the . If there is heat request, it is indicated by a ﬂ ashing and the heating will be put into

operation . The circulation pump will switch on and the boiler will switch on after 1 to 2 minutes.

When there is no more heat requested the radiator symbol may be solid or ﬂ ashing, but the ﬂ ame

symbol will disappear. The pump will continue to run due to the pump over run feature (overrun time

conﬁ rmed in technical speciﬁ cation table page 7).

c Pump function

By default the boiler is set in such a manner that the pump will switch on in case of a heat request for CH or DHW. Switching on and oﬀ is managed entirely by the control system.

Danger of frost If there is danger of frost damage to the CH installation and there is no outside sensor connected, it is advisable to let the pump run continuously. By pressing both - buttons at the same time for 8 seconds the pump can be switched on continuously.

If the pump is set to continuously this is displayed by .

Installation frost protection

If an outside sensor is connected, then the controls will regulate the pump:

- In case of outside temperatures between +1.5 and -5°C the pump will run for 10 minutes every 6 hours.

- In case of outside temperatures below -5°C the pump will run in frost protection mode.

Boiler frost protection

If there is no outside sensor connected, and if the (T1) ﬂ ow sensor registers a temperature of 5°C or below in the boiler, the boiler will ﬁ re up. The boiler keeps on ﬁ ring until the temperature reaches 10°C (measured on the ﬂ ow sensor) and the boiler switches oﬀ again.

In this mode the symbol will ﬂ ash.

Installation & Servicing instructions ATAG iC-Range

13.1 Settings

When the boiler is installed, it is in principle ready to be put into service. Most settings of the control system are already programmed from factory. Only parameter P0 (kind of heating installation) has to be checked and set, if necessary, to adjust the boiler to the connected installation.

To change this setting, proceed as follows:

1. Press the OK button for 3 seconds.

The display shows ‘P0’;

2. Press the OK button for 3 seconds again.

The display shows ‘on’ shortly followed by ‘P0’;

3. Press the OK button to enter P0;

4. Choose one of the following options by using the left + and - button (DHW symbol);

1. CH Tmax: 80°C; Gradient: 5; Heating line 24

2. CH Tmax: 70°C; Gradient: 5; Heating line 19

3. CH Tmax: 60°C; Gradient: 4; Heating line 15

4. CH Tmax: 50°C; Gradient: 3; Heating line 11

5. Press the OK button to conﬁ rm your choice;

When you want to change more settings proceed with step 6: When you are ready press the ESC button until the default display is shown again.

6. Press the Scroll button to select another parameter;

7. Press the OK button if you want to change the selected parameter;

8. Adjust the value if desired / possible with the + or - button (DHW button)

9. Brieﬂ y press the OK button to conﬁ rm the new setting. The display shows the selected parameter again

7. Press the ESC button until the default display is shown again: If during 8 minutes no button is used, the default display is automatically shown on the screen.

scroll

ESC

13.2 Parameter chapter

Par. Factory

setting

P0 1 1. CH Tmax: 80°C; Gradient: 5; Heating line 24

P1 max Maximum power CH in %

P2 max Pump, max. percentage XX - 100%

P3 min Pump, min. percentage min - XX / XX*

P4 0% Correction factor fan speed. Do not change!

P5 5 (NG)

0 (LPG)

P6 24 Heating line CH-water temperature (see also heating line graph) 1 - 30

P7 25 Summer-Eco temperature (only when outside sensor is connected)

P8 2 Boiler type. Do not change!

P9 0 Service-parameter. Do not change!

* Depending of connected type of boiler control

Description Range

2. CH Tmax: 70°C; Gradient: 5; Heating line 19

3. CH Tmax: 60°C; Gradient: 4; Heating line 15

4. CH Tmax: 50°C; Gradient: 3; Heating line 11

Can only be reduced. 0 = low load

Gradient speed CH 0 - 15 (0=oﬀ )

Heating program switch oﬀ at set outside temperature

1 = Natural gas ﬁ red boiler, 2 = Boiler with ﬂ ue non-return valve, 3 = Propane gas ﬁ red boiler

Check and change, if necessary,

this parameter before taking the

boiler into operation.

1-4

0 - max

8 - 30

1-3

Installation & Servicing instructions ATAG iC-Range

ﬂ ow temperature in °C

outside temperature in °C

heating line Graph 11.4.a

14 Isolating the boiler

In some situations it may happen that the entire boiler has to be deactivated. With the 2 function buttons for the DHW program and the CH program the boiler is put out of service.

Hot water program OFF: Press – until the lowest value is reached and then press – again. The display shows -- and the middle is oﬀ .

Switching on with the + button takes place in reverse order.

CH program OFF: Press – until the lowest value is reached and then press – again. The display is showing -- and the upper is oﬀ .

Switching on with the + button takes place in reverse order.

ATAG recommends to leave the electrical power supply on, so that the circulation pump and the three-way valve are activated automatically once every 24 hours in order to prevent jamming.

If there is danger of frost it is advisable in this case to drain the boiler and/or installation. (See following chapter)

Installation & Servicing instructions ATAG iC-Range

15 Commissioning

Work on the installation and/or boiler should only be carried out by qualiﬁ ed personnel with calibrated equipment.

At the time of commissioning, complete all revelant sections of the Benchmark Checklist located on the inside back pages of the document.

For maintenance of the boiler the cover has to be removed. Unscrew the 2 locking screws from the fasteners at the top of the boiler, unlock the fasteners and remove the cover in a forward motion. See ﬁ gure 16.a

Changing settings, such as the burner pressure and the amount of air ﬂ ow, is superﬂ uous. Only in case of a failure or when replacing the gas block, venturi and/or fan, the CO2 percentage should be checked.

Always check all gas carrying parts for leaks (with a leak detection spray) after (maintenance) work to the boiler.

Close the relevant commissioning valves during the maintenance activities. See ﬁ gure 15.a.

Draining the boiler

- Shut down the CH and DHW program and disconnect the 230V power supply

- Close the isolation valve CH ﬂ ow (1) & CH return (2)

- Unscrew the cap nut from the return pipe ﬁ lling loop connection (3)

- Connect a hose and drain socket (4) to the return ﬁ lling loop connection (3) and lead the other end of the hose to the drain.

- Slowly open the valve (2A) of the ﬁ lling loop on the return pipe completely. CH water will only be drain out from the boiler.

- If the CH water from the system and boiler needs to be drained, open the CV isolation valve (2)

Reassembly takes place in reverse order.

1 2A

Installation & Servicing instructions ATAG iC-Range

Figure 15.a

Figure 15.b

15.1 Checking the CO

The CO2 check consists of 2 steps or, if necessary, 3 steps:

Step 1: Check on full load Step 2: Check on low load Step 3: Adjustment (if necessary).

Step 1: CO2 check on full load

The CO2 setting is preset at the factory on all boilers. A calibrated CO2 control measurement must be carried out during commissioning.

- Ensure that the boiler is in operation and that the heat, which it produces, can be discharged.

Set the full load

You can set the full load of the boiler as follows:

6 sec.

Measuring point CO2 Figure 15.1.a

- Press both + buttons for 6 seconds (this will only give full CH output);

- When the ﬂ ame symbol appears in the display press both + buttons again for 6 seconds;

- The display shows the ﬂ ow water temperature ( appears in the display);

The boiler will switch to maximum power output of the boiler;

- Press 1x the eco- button;

the display shows XX% (heating capacity)

- Calibrate the CO2 measuring tool, and then insert the ﬂ ue gas probe of the measuring tool into the measuring point of the ﬂ ue gas pipe “a” (see illustration).

- Wait for one minute and then carry out a combustion analysis.

- Check whether the CO2 values that are listed below correspond to the measured value.

After this check has been done, once more test the CO2 value at low load (see Step 2 on page 42). If there are any deviations in the result, then these must be corrected (see Step 3 on page 43).

check on full load (Step 1)

Full load Natural gas (G20) Propane (G31)*

Values are valid with closed cover/air box.

Minimum 8.6%, maximum 9.6% Minimum 9.9%, maximum 11.0%

Nominal 9.0% Nominal 10.3%

* Only possible if LPG conversion kit is installed!

Installation & Servicing instructions ATAG iC-Range

Step 2: CO2 check on low load

Set the low load

The low load of the boiler can be set by you as follows:

Measuring point CO2 Figure 15.1.a

- Press on the - button until the minimum value (0%) has been reached (low load)

- Use the measuring tool to carry out a CO2 control measurement. The detected values must lie in the measuring range shown below.

The CO2 value at low load must be lower than the CO2 value at full load. The measuring procedure must be carried out, until a constant measuring result is achieved. Please contact ATAG, if the values should lie outside of the applicable tolerances.

End of measuring:

- Press the ESC button ( button). The device switches oﬀ . The display shows for 2 seconds code 180 or 181.

This completes the procedure.

The maximum duration of the commissioning function, without interruption, is 8 minutes.

check on low load (Step 2)

Low load Natural gas (G20) Propane (G31)*

Full load recorded Accepted low range Full load recorded Accepted low range

9.6% 9.3% - 7.5% 11.0% 10.9% - 8.9%

9.5% 9.2% - 7.5% 10.9% 10.8% - 8.9%

9.4% 9.1% - 7.5% 10.8% 10.7% - 8.9%

9.3% 9.0% - 7.5% 10.7% 10.6% - 8.9%

9.2% 8.9% - 7.5% 10.6% 10.5% - 8.9%

CO2 Example readings

Values are valid with closed cover/air box.

9.1% 8.8% - 7.5% 10.5% 10.4% - 8.9%

9.0% 8.7% - 7.5% 10.4% 10.3% - 8.9%

8.9% 8.6% - 7.5% 10.3% 10.2% - 8.9%

8.8% 8.5% - 7.5% 10.2% 10.1% - 8.9%

8.7% 8.4% - 7.5% 10.1% 10.0% - 8.9%

8.6% 8.3% - 7.5% 10.0% 9.9% - 8.9%

9.9% 9.8% - 8.9%

* Only possible if LPG conversion kit is installed!

Installation & Servicing instructions ATAG iC-Range

Step 3: Adjustment on the gas valve

Adjust the gas valve only in case the measured values lies out of range of the values mentioned in the table on previous page.

6 sec.

- Open the boiler as described on page 47;

- Set the boiler on full load (see Step 1)

- The CO2 values are set by using an Allen key (2 mm), or a large ﬂ at head screwdriver, on the screw “b”.

Please observe the following rotating direction:

- Clockwise means less CO2

- Counterclockwise means more CO

After this setting has been made, once more test the CO2 value at full load and low load. See Step 1 and 2.

Legend

a Measuring point for the ﬂ ue gas

probe

b Set screw for CO

Adjustment of the gas valve in case the measured values lies out of range of the values on full load (Step 3)

Full load Natural gas (G20) Propane (G31)*

Values are valid with closed cover/air box.

9.0% 10.3%

* Only possible if LPG conversion kit is installed!

Installation & Servicing instructions ATAG iC-Range

15.2 Checking ﬂ ue integrity

The integrity of the ﬂ ue system and performance of the boiler can be checked via the ﬂ ue turret sample points shown in diagram 15.2.a.

6 sec.

The case must be on the boiler and the boiler made to run at maximum output.

- Press both + buttons for 6 seconds (this will only give full CH output);

- When the ﬂ ame symbol appears in the display press both + buttons again for 6 seconds;

- The display shows the supply water temperature ( appears in the display)

The boiler will switch to maximum power output of the boiler

- Press 1x the eco- button;

The display shows XX% (heating capacity)

- Insert the analyser probe into the air intake sample point 'B'.

- Ensure the probe reaches into the ﬂ ow of air in air intake sample point. Ensure the sealing cone on the probe is sealed to the sample point and correctly position the end of the probe.

- Allow the readings to stabilise and check that:

- O2 is equal to, or greater than 20.6%.

- CO2 is less than 0.2%

- If the readings are outside these limits then this indicates that there is a problem with the ﬂ ue system or combustion circuit, e.g. missing or dislodged seals.

A – Flue gas sample point B – Air intake sample point

Figure 15.2.a

End of measuring:

- Press the ESC button ( button). The device switches oﬀ . The display shows for 2 seconds code 180 or 181. This completes the procedure.

Installation & Servicing instructions ATAG iC-Range

15.3 CO and combustion checks

IMPORTANT PRELIMINARY INFORMATION ON CHECKS

NOTE: The air gas ratio valve is factory set and must not be adjusted during commissioning unless this action is recommended following contact with the manufacturer.

If any such adjustment is recommended and further checking of the boiler is required the installer/service engineer must be competent to carry out this work and to use the ﬂ ue gas analyser accordingly.

If the boiler requires conversion to operate with a diﬀ erent gas family (e.g. conversion from natural gas to LPG) separate guidance will be provided by the boiler manufacturer

PRIOR TO CO LEVEL AND COMBUSTION RATIO CHECK

The boiler manufacturer’s installation instructions should have been followed, gas type veriﬁ ed and gas supply pressure/rate checked as required prior to commissioning.

As part of the installation process, especially where a ﬂ ue has been ﬁ tted by persons other than the boiler installer, visually check the integrity of the whole ﬂ ue system to conﬁ rm that all components are correctly assembled, ﬁ xed and supported. Check that manufacturer’s max. ﬂ ue lengths have not been exceeded and all guidance has been followed (e.g. Gas Safe Technical Bulletin TB008 where chimney/ﬂ ues are in voids).

The ﬂ ue gas analyser should be of the correct type, as speciﬁ ed by BS 7967

Prior to its use, the ﬂ ue gas analyser should have been maintained and calibrated as speciﬁ ed by the manufacturer. The installer must have the relevant competence for use of the analyser.

Check and zero the analyser IN FRESH AIR as per analyser manufacturer’s instructions. Key:

CO = carbon monoxide CO2 = carbon dioxide O2 = oxygen ppm = parts per million Combustion ratio = The CO reading measured in ppm divided by the CO2 reading ﬁ rst converted to ppm GU(I&U)R = Gas safety (Installation & use) Regulation.

Start

SET BOILER TO MAXIMUM RATE

In accordance with boiler instructions, set boiler to operate at maximum rate (full load condition). Allow suﬃ cient time for combustion to stabilise. NOTE - Do not insert analyser probe during this period to avoid possible “ﬂ ooding” of sensor.

CARRY OUT FLUE INTEGRITY CHECK USING ANALYSER

Insert analyser probe into air inlet test point and allow readings to stabilise. NOTE - where no air inlet test point is provided then a ﬂ ue integrity check with the analyser is not possible. The installer should verify that ﬂ ue integrity has been visually checked in accordance with the yellow “Prior to CO and combustion ratio check” box above before proceeding to the “Check CO and combustion ratio at

maximum rate” stage below.

To next

page

Installation & Servicing instructions ATAG iC-Range

From

page

Analyser readings indicate that combustion products and inlet air

VERIFY FLUE INTEGRITY

must be mixing. Further investigation of the ﬂ ue is therefore required.

Check that ﬂ ue components are assembled, ﬁ xed and supported as

per boiler/ﬂ ue manufacturer’s instructions.

Check that ﬂ ue and ﬂ ue terminal are not obstructed.

O2 > 20.6%

and

YES

CO2 < 0.2%

TURN OFF APPLIANCE AND CALL

ATAG TECHNICAL HELPLINE FOR

ADVICE. 0800 254 5065

THE APPLIANCE MUST NOT BE

COMMISSIONED UNTIL PROBLEMS ARE

IDENTIFIED AND RESOLVED.

Check all seals around the appliance burner,

internal ﬂ ue seals, door and case seals.

Rectify where necessary.

O2 > 20.6%

and

CO2 < 0.2%

YES

< = less than or

equal to

> = greater than or

equal to

CHECK CO AND COMBUSTION RATIO AT MAX. RATE

With boiler still set at maximum gas rate, insert analyser probe into

ﬂ ue gas sampling point.

Allow readings to stabilise before recording.

CO less than

350ppm and

CO/CO2 ratio less

than 0.0040

CO less than

350ppm and

YES

CO/CO2 ratio less

than 0.0040

TURN OFF APPLIANCE AND CALL

MANUFACTURER’S TECHNICAL HELPLINE

FOR ADVICE.

THE APPLIANCE MUST NOT BE

COMMISSIONED UNTIL PROBLEMS ARE

IDENTIFIED AND RESOLVED. IF

COMMISSIONING CANNOT BE FULLY

COMPLETED, THE APPLIANCE MUST BE

DISCONNECTED FROM THE GAS SUPPLY IN

ACCORDANCE WITH THE GS(I&U)R.

NOTE: Check and record CO and combustion

ratio at both max. and min. rate before contacting

the manufacturer.

YES

SET BOILER TO MINIMUM RATE

In accordance with boiler instructions, set boiler to operate at

minimum rate (to minimum load condition). Allow suﬃ cient time for

combustion to stabilise.

CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE

With boiler still set at minimum rate, insert analyser probe into ﬂ ue

gas sampling point. Allow readings to stabilise before recording.

CO less than

350ppm and

CO/CO2 ratio less

than 0.0040

YES

Installation & Servicing instructions ATAG iC-Range

BOILER IS OPERATING SATISFACTORILY

No further actions required.

Ensure test points are capped, boiler case is correctly replaced and

all other commissioning procedures are completed.

Complete Benchmark Checklist, recording CO and combustion ratio

readings as required.

16 Routine servicing

ATAG Heating Technology advises on an interim service inspection with a ﬂ ue gas analyser. A full strip down service is recommended at regular intervals or where analyser readings are not within correct safety standards.

Required tools:

- Cross head screwdriver

- T-handle key set with 3 bits (hex key 4mm, hex key 5mm and cross head PZ2)

- Open end wrench 8mm

In order to perform maintenance, the following actions have to be taken:

- Switch oﬀ the electrical power to the boiler;

- Remove the screws from the 2 fasteners A and B (see ﬁ g. 16.a);

- Unlock the fasteners A and B and remove the cover in a forward motion and remove the earth cable (when present) from the cover.

Note that there is an earth cable (when present) to disconnect when removing the boiler front panel. Free space for removing the connector is about 400 mm. Remind to connect this earth cable (when present) when placing back the boiler front panel and take care the wire does not get stuck between front panel and boiler. Always replace and turn the 2 screws tight in the fasteners A and B.

Air box/cover

The cover also doubles as air box:

- Clean the air box/cover with a cloth and a non-abrasive cleaner;

Siphon (see ﬁ g. 16.b)

The degree of pollution resedue in the siphon is an important indication for the need of maintenance

- Turn the control unit towards by moving the handle (C) slightly to the left (see ﬁ gure 16.a);

- Turn/pull the sealing ring (1) downwards;

- Turn the siphon securing clip (2) anti-clockwise;

- Pull the siphon cup (3) and siphon pipe (4) out of the heat exchanger;

- Take the siphon cup and pipe out of the boiler by moving it downwards or turn it in forward motion upwards along the heat exchanger;

- Clean the parts by rinsing them with water;

- Check the O-ring of the siphon cup and replace it if necessary;

- Grease the O-ring again with acid-free O-ring grease to simplify the reassembly.

Reassembly takes place in reverse order.

- ﬁ ll the siphon with 150 ml of water.

- If a leakage has occurred to the siphon, replace the entire siphon.

Figure 16.a

Figure 16.b

Installation & Servicing instructions ATAG iC-Range

Fan unit and burner cassette (see ﬁ g. 13.2.b-f)

- Remove the velcro from the silencer and remove the silencer (1);

- Unscrew the coupling (2) of the gas block and the coupling on the venturi (3) and remove the gasline (4);

- Replace the gaskets of the gasline (O-ring) with new ones;

- Disconnect the electrical connections from the fan (5);

- Turn the left (6) and right (7) clamp bars a quarter turn with the hex key and pull these out in a forward motion. Mind the direction of rotation (red control cams);

- Now lift the complete fan unit (5) with the upper tray of the heat exchanger and remove it in a forward motion;

- Turn the unit up side down and remove the burner cassette (8) from the ventilator unit;

- Check the burner cassette for wear and tear, pollution and any breakages. Clean the burner cassette with a soft brush and vacuum cleaner. In the case of breakages, always replace the complete burner cassette (8);

Figure 16.c

Installation & Servicing instructions ATAG iC-Range

The following operations must be performed carefully in relation to the vulnerability of the non return valve.

- After removing the burner cassette (8) the non return valve (12) becomes visible. Check that the non return valve entire circumference closes / seals completely. The valve should be able to move freely from fully open to fully closed (see ﬁ g. 16.e). Replace the non return valve if the valve does not seal properly. Follow the instructions supplied with the new part.

Figure 16.e

Figure 16.d

Figure 16.f

- Replace the gasket (9) between the burner (8) and upper casing (10) ;

- Replace the gasket (11) between the upper casing (10) and exchanger (Note the position in ﬁ gure 16.f):

- Check the venturi (13) for pollution and clean them with a soft brush in combination with a vacuum cleaner, if necessary.

If the inside of the boiler casing is heavily polluted with dust, it is likely that the fan impeller is also polluted. To clean the fan, it has to be removed from the upper tray and the venturi. Clean the impeller with a soft brush and a vacuum cleaner. Replace the gasket and take care that the new gasket is installed properly when reassembling the fan parts.

Figure 16.g

Figure 16.h

Reassembly takes place in reverse order.

Heat exchanger

- Check the heat exchanger for pollution. Clean it, if necessary, with a soft brush and a vacuum cleaner. Avoid any pollution falling down.

TOP-FLUSHING THE EXCHANGER WITH WATER IS NOT ALLOWED.

Reassembly takes place in reverse order.

During installation pay attention to the correct position of the clamp bars. These have to be in a vertical position.

Installation & Servicing instructions ATAG iC-Range

Ignition electrode

Replacing the ignition electrode is necessary when the pins are worn. If the inspection hole is damaged, the entire ignition electrode has to be replaced.

It is replaced as follows:

- Take away the plug connections on the ignition electrode;

- Push the clip on top of the electrode upwards and take away the electrode;

- Remove and replace the gasket;

Figure 16.g

Reassembly takes place in reverse order.

Always replace the gaskets of the removed parts during maintenance.

Put the boiler back into operation and carry out a ﬂ ue gas analysis (see page 34).

Always put back the cover after (maintenance) work and secure it with screws A and B. Remind to connect this earth cable (when present) when placing back the boiler front panel and take care the wire does not get stuck between front panel and boiler. Always replace and turn the 2 screws tight in the fasteners A and B.

Please contact your installer or ATAG Heating Technology Ltd. for further details. Contact details can be found on the back page of this manual.

After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist located on the inside back page of the document.

Installation & Servicing instructions ATAG iC-Range

16.1 Flow restrictor

If required the ﬂ ow restrictor can be removed as follows:

- Turn oﬀ the mains water supply to the boiler

- Open a hot water tap to depressurise the hot water pipe

- Remove the boilers front cover and turn down the control unit

- Remove the securing clip (1) to the left

- Pull out the ﬂ ow restrictor plug (2)

- Remove the ﬂ ow restrictor (3) using a long nose plier

- Reﬁ t the plug (2) and secure it with the securing clip (1)

- Turn on mains water inlet and purge water through all taps

- Replace the boilers front cover.

16.2 Component replacement

In the event that parts require replacement, use only genuine parts supplied by ATAG Heating Technology Ltd.

16.3 User's instructions

Advise the user that for continued eﬃ cient and safe operation, the boiler should be serviced at least once a year by qualiﬁ ed servicing company. It is important and strongly recommended that arrangements are made for a maintenance agreement with a qualiﬁ ed servicing company to ensure regular servicing of the boiler.

Please contact ATAG Heating Technology Ltd. for further details. Contact details can be found on the back page of this manual.

16.4 Warranty

For the warranty conditions we refer to the Warranty Card that is supplied with the boiler.

Installation & Servicing instructions ATAG iC-Range

17 Error codes and fault ﬁ nding

A detected failure is indicated on the display in blocking or error messages.

- Blocking code with spanner symbol Error is temporary and will cancel itself or will lock the boiler after several attempts (error)

- Error code with bell symbol Error means a lock on the boiler and can only be remedied by a reset and/or intervention by a service technician.

10 Outside sensor error (e.g. open, short circuit, out of range) 20 Flow sensor error (e.g. open, short circuit, out of range) 40 Return sensor error (e.g. open, short circuit, out of range) 50 T3 (DHW) sensor error (e.g. open, short circuit, out of range) 61 Bus communication error (contact open) 78 Water pressure outside of range or not connected 105 Venting program active when power turned on or interrupted (runs approx. 7 mins.) 110 Safety temperature exceeded 111 Maximum temperature exceeded 117 Pressure too high (> 3 bar) or pump pressure increase too high 118* Pressure too low (0.5 - 0.8 bar) or pump pressure increase too low (no pump detection) 119 Link on X2 position 4 and 5 missing 129 Fan error (fan does not start up) 133 No ﬂ ame after 5 ignition attempts 151 Fan error (speed control is not achieved or is out of range) or control unit defective 154 Flow increases too fast ∆T too large, return > ﬂ ow 180 No error: shortly visible when leaving chimney sweep function 181 No error: shortly visible when leaving commissioning mode

Example of display of error message

* First measure to solve fault code 118: Manually deblocking of the boiler pump.

Installation & Servicing instructions ATAG iC-Range

Annex A System water additives

When the ﬁ lling water requirements as referred to in chapter Water Quality have been met, certain additives are allowed for the below mentioned applications and related dosage. Warranty on ATAG delivered installation products expires, if these additives and concentrations are not used in accordance with this annex.

Additive type Supplier and speciﬁ cations Max. concentration Application

Corrosion inhibitors ATAG Central Heating Protector.

Build Cert Approved

Sentinel X100 Corrosion resistant protection agent of CH systems Kiwa certiﬁ ed

Fernox F1 Protector Corrosion resistant protection agent of CH systems Kiwa certiﬁ ed KIWA-ATA K62581, Belgaqua certiﬁ ed Cat III

Anti-freeze Kalsbeek

Monopropyleneglycol / propane-

1.2-diol + inhibitors AKWA-Colpro KIWA-ATA Nr. 2104/1

Tyfocor L Monopropyleneglycol / propane-

1.2-diol + inhibitors

Sentinel X500 Monopropyleneglycol + inhibitors Kiwa certiﬁ ed

Fernox Alphi 11 Monopropyleneglycol + inhibitors Kiwa certiﬁ ed KIWA-ATA K62581, Belgaqua certiﬁ ed Cat III

System cleaners ATAG Central Heating Universal

Cleaner

Sentinel X300 Solution of phosphate, organic heterocyclic compounds, polymers and organic bases Kiwa certiﬁ ed

Sentinel X400 Solution of synthetic organic polymers

Sentinel X800 Jetﬂ o Aqueous emulsion of dispersants, moistening agents and inhibitors

500 ml / 100 litres Suitable for mixed metal and

1-2 l/100 litres CH water content Aqueous solution of organic

500 ml can or 265 ml Express / 100 litres CH water content

50% w/w Anti-freeze

20-50% w/w Anti-freeze

25-50% w/w Anti-freeze in combination with F1

500 ml / 100 litres Suitable for mixed metal and

1 litre / 100 litres For new CH installations Removes

1-2 litres / 100 litres For cleaning existing CH-

1-2 litres / 100 litres For cleaning new and existing CH-

plastic systems. Prevents corrosion and limscale.

and inorganic agents preventing corrosion and scale forming

Preventing corrosion and scale forming

Protector

plastic systems. Disperses sludge, limescale and other deposits.

oils/grease and ﬂ ow control agents

installations Removes sediments.

installations Removes iron and lime-related sediments.

Fernox F3 Cleaner Liquid pH neutral universal cleaner for pre-commissioning new systems

Fernox F5 Cleaner, Express pH neutral universal cleaner concentrate for pre-commissioning new systems

500 ml / 100 litres For cleaning new and existing

CH-installations Removes sludge, limescale and other debris.

295 / 100 litres For cleaning new and existing

CH-installations Removes sludge, limescale and other debris.

ATAG support the use of inhibitors suitable for mixed metal applications that keep the pH level between 6 and 8. Dosage levels as per manufacturers instructions. Preferred inhibitor suppliers are ATAG Heating Technology, Fernox and Sentinel.

Installation & Servicing instructions ATAG iC-Range

Annex B Declaration of conformity

CE DECLARATION OF CONFORMITY

Hereby declares ATAG Verwarming Nederland BV that,

the condensing boiler types: ATAG

iC24 iC28 iC36 iC40 iC Economiser Plus 27 iC Economiser Plus 35 iC Economiser Plus 39

are in conformity with the following standards:

EU Gas Appliance Regulation 2016/426/EU EN 15502-1: 2012 EN 15502-2-1: 2012 EN 60335-1: 2011 EN 60335-2-102: 2010 Boiler Eﬃ ciency Directive 92/42/EEC EN 15502-2-2: 2014 Low Voltage Directive 2014/35/EU EN 60335-1: 2011 EN 60335-2-102: 2010 EMC Directive 2014/30//EU EN 61000-3-2: 2013 EN 61000-3-3: 2014 EN 60335-2-102: 2010 EN 55014-1: 2011 EN 55014-2: 2008 Ecodesign Directive 2009/125/EC EN 13203-2: 2014 EN 15036-1: 2006 EN 15502-1: 2012 regulation (EU) 813/2013

This product is designated with CE number:

CE – 0063CQ3634

and that the products are in conformity with EC type-examination certiﬁ cate number E0430, as stated by KIWA-Gastec Certiﬁ cation BV, Apeldoorn, The Netherlands.

Date : 16 April 2018

Signature :

Full name : Drs. C. Berlo CEO

Installation & Servicing instructions ATAG iC-Range

Annex C Short parts list

Installation & Servicing instructions ATAG iC-Range

ATAG Heating Technology Ltd. • 80 Churchill Square Business Centre • Kings Hill • West Malling • Kent ME19 4YU Phone: 0800 254 5061 • E-mail: info@atagheating.co.uk • Internet: www.atagheating.co.uk

Atag iC 24, iC 28, iC Economiser Plus 27, iC 36, iC 40 Installation & Servicing Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual