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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
Natural Gas Boilers
Boiler
G.C No
iS 12
41-310-18
iS 15
41-310-20
iS 18
41-310-22
iS 24
41-310-24
iS 32
41-310-26
iS 40
41-310-28
CE PIN 0063CQ3634
These instructions are to be retained by the user.
Instructions
Propane Gas Boilers
Boiler
G.C No
iS 12 LPG
41-310-19
iS 15 LPG
41-310-21
iS 18 LPG
41-310-23
iS 24 LPG
41-310-25
iS 32 LPG
41-310-27
iS 40 LPG
41-310-29
iS 12
iS 15
iS 18
iS 24
iS 32
iS 40
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Summary of Contents for Atag IS 12
- Page 1 24 iS 32 iS 40 Natural Gas Boilers Propane Gas Boilers Boiler G.C No Boiler G.C No iS 12 41-310-18 iS 12 LPG 41-310-19 iS 15 41-310-20 iS 15 LPG 41-310-21 iS 18 41-310-22 iS 18 LPG 41-310-23 iS 24...
- Page 2 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 iS-Range...
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Page 3: Table Of Contents
System water additives .....................56 Annex B Declaration of conformity ....................57 Annex C Short parts list ........................58 Work on the installation should only be carried out by qualified personnel with calibrated equipment and appropriate tools. Installation & Servicing instructions ATAG iS-Range... -
Page 4: Introduction
These instructions are intended for the use of Gas Safe registed 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. -
Page 5: Rules & Regulations (Symbols)
British Standards. The ATAG iS boiler is a certified appliance and must not be modified or installed in any way contrary to this Installation Manual. Manufacturers instructions must not be taken, in any way, as overriding statutory obligations. - Page 6 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 Installation & Servicing instructions ATAG iS-Range...
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Page 7: Technical Specifications
Boiler type iS 12 iS 15 iS 18 iS 24 iS 32 iS 40 Seasonal space heating energy efficiency class Power output Annual energy consumption η Seasonal space heating energy efficiency Sound power level, indoors Installation & Servicing instructions ATAG iS-Range... -
Page 8: Dimensions
Dimensions ATAG iS-Series System iS 12 iS 15 iS 18 iS 24 iS 32 iS 40 Flue gas / Air intake 60/100 Gas connection CH Flow connection CH Return connection Condensate drain connection 21.5 Installation & Servicing instructions ATAG iS-Range... -
Page 9: Delivery Package
External controls. Boiler description The ATAG iS is a room sealed, condensing and modulating CH boiler. The boiler is equipped with a compact stainless steel heat exchanger with smooth pipes. It is a well thought- out principle using sustainable materials. -
Page 10: Boiler Photo Components List
Gas valve Expansion vessel Automatic de-aerator Safety valve Control unit Siphon Control panel Isolation valve flow CH Flow sensor Gas pipe Return sensor Flow pipe CH Return pipe CH Water pressure sensor Condensation pipe Installation & Servicing instructions ATAG iS-Range... -
Page 11: Mounting Boiler Frame
Bayonet catch Service space Service space Service dimensions (in mm) Figure 8.a See chapter 9.8 for further procedure to fit the boiler onto the boiler frame. Installation & Servicing instructions ATAG iS-Range... -
Page 12: Wall Frame
The pipe work must be installed at least 10mm inside the front of the frame. = free space for piping ATAG i-Serie template and boiler frame Figure 8.1.a Installation & Servicing instructions ATAG iS-Range... -
Page 13: Connecting Boiler
Installation resistance table 9.1.a The control system will, if an unacceptable temperature difference is detected, repeatedly try to establish a water flow. If this does not succeed, the boiler will block itself (code 154). Installation & Servicing instructions ATAG iS-Range... -
Page 14: Expansion Vessel
The warranty becomes invalid, if the installation is not being flushed and/or the quality of the filling water does not meet the specifications 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. - Page 15 The use of anti-freeze and other additives requires periodical quality checks of the filling water in accordance with the period laid down by the additives supplier. Chemical additions are to be avoided and should only be used after ATAG Heating Technology Ltd has approved their corresponding use.
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Page 16: Heating Systems With Plastic Pipes
ATAG supplies boilers suitable for natural gas only and boilers for LPG only. Verify the identification plate on the boiler if the boiler is suitable for the gas kind on site. The boilers cannot be converted to another kind of gas. - Page 17 If fitting the regulator outside the regulator should be protected against influences of the weather. The (de-) aeration must be positioned downwards (see figure 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 figure 9.5.3.a...
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Page 18: External Dhw Cylinder
The ATAG 3-port diverter valve is to be fitted external to the boiler on the system pipework with the electrical wiring routed back to the wiring loom diverter valve connection within the iS boiler with a connection plug and wire included with in the 3-port diverter valve kit. - Page 19 The ATAG 3-port diverter valve is to be fitted external to the boiler on the system pipework with the electrical wiring routed back to the wiring loom diverter valve connection within the iS boiler with a connection plug and wire included with in the 3-port diverter valve kit.
- Page 20 Install the 3-port diverter valve on the system pipework with the valve ports is the following orientation, AB port iS System boiler, A port hot water cylinder & B port heating system. Figure 9.6.d Installation & Servicing instructions ATAG iS-Range...
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Page 21: Condensation Drain Pipe
Condensation drain pipe The ATAG condensing boiler has the >88% Efficient SEDBUK 2009 for high energy efficiency in heating and domestic hot water. The ATAG wall hung gas fired 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. - Page 22 45° Minimum internal diameter 19mm (fall at least 45mm per meter) Pipe size transition Minimum internal diameter 30mm Water/weather proof insulation Drain requirements Figure 9.7.2 (b) Drain requirements Figure 9.7.3 Installation & Servicing instructions ATAG iS-Range...
- Page 23 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 fill the siphon with 150 ml of water. Installation & Servicing instructions ATAG iS-Range...
- Page 24 Minimum internal diameter 19mm (fall at least 45mm per meter) Pipe size transition point Pipe size transition point Minimum internal diameter 30mm 10 Minimum internal diameter 30mm 10 Water/weather proof insulation 11 Water/weather proof insulation Drain requirements Figure 9.7.7 Drain requirements Figure 9.7.6 Installation & Servicing instructions ATAG iS-Range...
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Page 25: Flue Gas Exhaust System
ATAG Heating, not permitted. The ATAG flue 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 Certificate has been supplemented under the Gastec nr: 0063CQ3634 The maximum flue gas temperatures are below 70°C (full load 80/60°C). -
Page 26: Flue Terminal Locations
Maximum straight length: 13m: iC 24/28/ iR 12/15/18/24 iS 12/15/18/24 Economiser 6m: iC 36/40/ Economiser Economiser iR 32/40 iS 32/40 3° 89mm 141mm 194mm 246mm 299mm 351mm 403mm 456mm 508mm 560mm 612mm 664mm 716mm Figure 9.8.1.b Installation & Servicing instructions ATAG iS-Range... - Page 27 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 fitted 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 iS-Range...
- Page 28 Plume kits running horizontally must have a 10° fall back to the boiler for proper disposal of condensate. For details on specific lengths see relevant chapter Dimensioning of the flue gas and air intake duct. A terminal must not be sited under a car port roof. Installation & Servicing instructions ATAG iS-Range...
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Page 29: Dimensioning Of The Flue Gas And Air Intake Duct
If the length L is more than 580mm rear flue or 585mm side flue, then a Horizontal flue fixed length 1000mm (60/100mm) with lock function elbow (FA100250) will need to be used instead, up to 810mm. Figure 9.8.2.a Installation & Servicing instructions ATAG iS-Range... - Page 30 Use a soap solvent or special grease (supplied in the accessory bag with the boiler) to simplify the fitting. The ATAG flue system used is a push fit flue system, which does not require screws to be fitted at each flue joint.
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Page 31: Fitting The Boiler Onto The Boiler Frame
± 50mm Figure 9.9.b 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 fittings will be axial approached. Installation & Servicing instructions ATAG iS-Range... - Page 32 (click!). Press the sealing ring (8) around the siphon cup and press/turn it in the bottom plate of the boiler. Before putting the boiler into operation fill the siphon with 150 ml of water. Installation & Servicing instructions ATAG iS-Range...
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Page 33: Electrical Connection
- 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. -
Page 34: One Controller & Connections
Connected to the ATAG boiler there can be 3-Port Diverter Valve and One Controller Kit: For optimal use of the boilers control ATAG advices: Position Bus: ATAG One Wifi thermostat. For more detailed questions about components that have not been supplied by ATAG, contact the vendor concerned. 10.2 Weather compensation & connections When a weather compensation sensor (optional accessory) is used the two wires from the sensor connect to the orange volt free outside sensor connector position. -
Page 35: Electrical Diagram
10.3 Electrical diagram Figure 10.1.a Installation & Servicing instructions ATAG iS-Range... -
Page 36: Filling System
Always remove the filling loop pipe or garden hose after filling or topping up the heating system and close the connections with a cap nut. Installation & Servicing instructions ATAG iS-Range... -
Page 37: Boiler Controls
Outside sensor T4 Flow sensor T1 Return sensor T2 DHW sensor T3 The ATAG iS is equipped with boiler sensors of 10kOhm. The resistance Flue sensor T5 value and corresponding temperature are shown in the accompanying NTC1k (25°C) NTC10k (25°C) -
Page 38: Controls And Explanation Of The Functions
Both + buttons = Commissioning-mode for checking the CO CH + button = OK (confirm) (OK) DHW Button: Scroll function (‘scrolling’ through parameters) reset CH – button = ESC function (ESC) (back to standard display) Both – buttons: Pump continuous on/off Installation & Servicing instructions ATAG iS-Range... -
Page 39: Commissioning The Boiler
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 is stand by now for heating. Installation & Servicing instructions ATAG iS-Range... - Page 40 If the (T1) flow sensor registers a temperature of 5°C or below in the boiler, the boiler will fire up. The boiler keeps on firing until the temperature reaches 10°C (measured on the flow sensor) and the boiler switches off again. In this mode the symbol will flash. Installation & Servicing instructions ATAG iS-Range...
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Page 41: Settings
Boiler type. Do not change! 1 = Natural gas fired boiler, 2 = Boiler with flue non-return valve, 3 = Propane gas fired boiler Service-parameter. Do not change! * Depending of connected type of boiler control Installation & Servicing instructions ATAG iS-Range... -
Page 42: Isolating The Boiler
Switching on with the + button takes place in reverse order. reset 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. -
Page 43: Commissioning
Close the relevant commissioning valves during the maintenance activities. See figure 15.a. Draining the boiler The heating installation must be provided with a fill and drain valve. Use this feature also for draining the boiler. CH FLOW CH RETURN OPEN CLOSED Figure 15.a Installation & Servicing instructions ATAG iS-Range... -
Page 44: Checking The Co
(see Step 3 on page 46). check on full load (Step 1) Full load Natural gas (G20) Propane (G31) Nominal 9,0% Nominal 10,3% Minimum 8,6%, maximum 9,6% Minimum 9,9%, maximum 11,0% Values are valid with closed cover/air box. Installation & Servicing instructions ATAG iS-Range... - Page 45 CO 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.
- Page 46 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) 9,0% 10,3% Values are valid with closed cover/air box. Installation & Servicing instructions ATAG iS-Range...
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Page 47: Checking Flue Integrity
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 iS-Range... -
Page 48: Co And Combustion Checks
“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 iS-Range... - Page 49 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. Installation & Servicing instructions ATAG iS-Range...
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Page 50: Routine Servicing
16 Routine servicing ATAG Heating Technology advises on an annual inspection with a flue gas analyser. A full strip down service is required every 4 year or where analyser reading are not within correct safety standards. Required tools: Cross head screwdriver... - Page 51 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); Installation & Servicing instructions ATAG iS-Range...
- Page 52 TOP-FLUSHING THE EXCHANGER WITH WATER IS NOT ALLOWED. OPEN Reassembly takes place in reverse order. During installation pay attention to the correct position of the clamp bars. HEX KEY These have to be in a vertical position. CLOSED Installation & Servicing instructions ATAG iS-Range...
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Page 53: Component Replacement
Remind to connect this earth cable when placing back the boiler front panel and take care the wire does not get stuck between front panel and boiler. Please contact your installer or ATAG Heating Technology Ltd. for further details. Contact details can be found on the back page of this manual. -
Page 54: User's Instructions
It is important and strongly recommended that arrangements are made for a maintenance agreement with a qualified 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. -
Page 55: Error Codes And Fault Finding
Fan error (speed control is not achieved or is out of range) or control unit defective Flow increases too fast ∆T too large, return > flow No error: shortly visible when leaving chimney sweep function No error: shortly visible when leaving commissioning mode Example of display of error message Installation & Servicing instructions ATAG iS-Range... -
Page 56: Annex A System Water Additives
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. -
Page 57: Annex B Declaration Of Conformity
Annex B Declaration of conformity CE DECLARATION OF CONFORMITY Hereby declares ATAG Verwarming Nederland BV that, the condensing boiler types: ATAG iS12 iS15 iS18 iS24 iS32 iS40 are in conformity with the provisions of the following EC Directives, including all amendments, and... -
Page 58: Annex C Short Parts List
Clamp bar long S4850900 Safety relieve valve S4852500 Pressure gauge analogue S4868100 Connector OpenTherm (Blue) S4745000 Connector External Safety S4745200 Connector Outside Sensor (Salmon Pink) S4745400 Drain Off 44867400 Flue Gas Non Return Valve AA07400U Installation & Servicing instructions ATAG iS-Range... - Page 59 Installation & Servicing instructions ATAG iS-Range...
- Page 60 Installation & Servicing instructions ATAG iS-Range...
- Page 61 Gas Safe registered engineer who has been trained on the boiler installed. The service details should be recorded on the Benchmark Service Interval Record and left with the householder. www.centralheating.co.uk Installation & Servicing instructions ATAG iS-Range © Heating and Hotwater Industry Council (HHIC)
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Page 62: Gas Boiler System Commissioning Checklist
°C Waterflowrate I/min CONDENSING BOILERS ONLY Thecondensatedrainhasbeeninstalledinaccordancewiththemanufacturer’sinstructionsand/orBS5546/BS6798 ALL INSTALLATIONS Atmax.rate:COppm AND CO/CO ² Ratio Recordthefollowing: Atmin.rate:(wherepossible)COppm AND CO/CO ² Ratio TheheatingandhotwatersystemcomplieswiththeappropriateBuildingRegulations Theboilerandassociatedproductshavebeeninstalledandcommissionedinaccordancewiththemanufacturer’sinstructions Theoperationoftheboilerandsystemcontrolshavebeendemonstratedtoandunderstoodbythecustomer Themanufacturer’sliterature,includingBenchmarkChecklistandServiceRecord,hasbeenexplainedandleftwiththecustomer CommissioningEngineer’sSignature Customer’sSignature (Toconfirmsatisfactorydemonstrationandreceiptofmanufacturer’sliterature) * A llinstallationsinEnglandandWalesmustbenotifiedtoLocalAuthorityBuildingControl(LABC)eitherdirectlyorthrougha CompetentPersonsScheme.ABuildingRegulationsComplianceCertificatewillthenbeissuedtothecustomer. Installation & Servicing instructions ATAG iS-Range ©HeatingandHotwaterIndustryCouncil(HHIC) www.centralheating.co.uk www.centralheating.co.uk... -
Page 63: Service Record
CO ² % COppm AND Atmax.rate: CO ² % Record: Record: Atmin.rate: COppm AND CO ² % Atmin.rate: COppm AND CO ² % (WherePossible) (WherePossible) Comments: Comments: Signature Signature * A llinstallationsinEnglandandWalesmustbenotifiedtoLocalAuthorityBuildingControl(LABC)eitherdirectlyorthrougha CompetentPersonsScheme.ABuildingRegulationsComplianceCertificatewillthenbeissuedtothecustomer. Installation & Servicing instructions ATAG iS-Range ©HeatingandHotwaterIndustryCouncil(HHIC) www.centralheating.co.uk... - Page 64 A T A G H e a t i n g T e c h n o l o g y L t d . • C a s t l e S t r e e t • R e a d i n g •...
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