INSTALLATION & SERVICING INSTRUCTIONS

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These instructions to be retained by user.

Installation instructions S-HR series page 3

Contents1 Introduction ................................................................................................................................................. 42 Regulations ................................................................................................................................................. 43 Description of the appliance ........................................................................................................................ 54 Scope of the supply .................................................................................................................................... 55 Mounting of the boiler .................................................................................................................................. 5

5.1 Dimensions ....................................................................................................................................... 66 Connecting the boiler .................................................................................................................................. 7

6.1 Central heating system ..................................................................................................................... 86.2 Expansion vessel .............................................................................................................................. 96.3 Underfloor heating systems (plastic pipes) .......................................................................................106.4 Gas connection ................................................................................................................................106.5 Hot water supply (S-HR-T) ................................................................................................................116.6 Hot water supply S-HR 15, 24 and 35 ..............................................................................................116.7 Condensation drain pipe ...................................................................................................................116.8 Flue gas exhaust system and air supply system .............................................................................12

7 External hot water cylinders .......................................................................................................................148 Electrical connection ..................................................................................................................................149 Boiler controls ............................................................................................................................................16

9.1 Explanation of the function keys ......................................................................................................1610 Filling and venting the boiler and installation ...............................................................................................17

10.1 Central heating system ....................................................................................................................1710.2 Hot water supply ..............................................................................................................................17

11 Commissioning the boiler ..........................................................................................................................1811.1 Central Heating system....................................................................................................................1811.2 Hot water supply ..............................................................................................................................1811.3 Adjustments ....................................................................................................................................18

12 Isolating the boiler ......................................................................................................................................2113 Commissioning ..........................................................................................................................................22

13.1 Checking for contamination ..............................................................................................................2213.2 Checking of the zero pressure control ..............................................................................................2213.3 Checking the CO2 ............................................................................................................................23

14 Maintenance ..............................................................................................................................................2414.1 The frequency of maintenance ..........................................................................................................2414.2 Maintenance activities ......................................................................................................................2414.3 Further checks .................................................................................................................................24

15 Technical specifications .............................................................................................................................2516 Diagram showing various parts of the boiler ................................................................................................2617 Example diagrams for connecting the boiler ...............................................................................................28

17.1 Radiator installation without thermostat valves..................................................................................2817.2 radiator installation with thermostat valves only ................................................................................29

18 Error indication ...........................................................................................................................................3019 CE-Certificate United Kingdom ...................................................................................................................3120 CE-Certificate Ireland .................................................................................................................................32

The appliance should only be installed by a Competent Gas Installer.


1 IntroductionThese instructions describe the functioning, installation,use and primary maintenance of ATAG central heatingunits for United Kingdom and Ireland. Where necessarydifferent regulations of each country are separatelydescribed.

These instructions are intended for the use of Corgiregisterd installers or registered Bord Gais installers inconnection with the installation and putting into operationof ATAG units. It is advisable to read these instructionsthoroughly, well in advance of installation. Separateinstructions for use are supplied with the unit for users ofATAG central heating units. ATAG is not liable for theconsequences of mistakes or shortcomings which havefound their way into the installation instructions or user’smanual. Further, ATAG reserves the right to alter itsproducts without prior notification.

When delivering the unit, give the customerclear instructions concerning its use; presentthe customer with the user’s manual and card.

Each unit is fitted with an identification plate. Consult thedetails on this plate to verify whether the unit iscompliant with its intended location, e.g.: gas type,power source and exhaust classification.

On completion of the installation the installer orcommissioning engineer must fill out and complete theBenchmark commission section of the boiler log book andhand to customer or end user for future record keeping.The Benchmark log book must also be filled out andcompleted by the service agent following each service call,and returned to the customer. A copy of the Benchmarkcommissioning certificate must be returned to ATAGHeating UK Ltd along with the warranty registration card toregister the appliance for the standard warranty benefits.

2 RegulationsThe following regulations apply to installation of ATAGcentral heating units:

Legislation and Regulations.Gas Safety (Installation and Use). All gas appliances mustby law, be installed by a competent person, eg. Membersof CORGI and in accordance with the current Gas SafetyRegulation. Failure to install appliance correctly could leadto prosecution.

In addition to the above regulations this appliance must beinstalled in compliance with the current IEE Regulations, theBuilding Standards (Scotland Consolidation) Regulations.Regulations and bye laws of the Local Water Authority andthe Current Health and Safety Regulation.

Ireland:- Irish standard 813- Domestic gas installations

The current, Electricity at Work Regulation must becomplied with and also be in accordance with therelevant and current editions of the British Standards.

The ATAG Blauwe Engel boiler is a certified applianceand must not be modified or installed in any way contraryto this Installation Manual.Manufactures instructions must not be taken in any wayas overriding statutory obligations.

The ATAG Blauwe Engel is a central heating unit with anoptional integrated hot water function. These units mustbe connected according to these instructions and allinstallation norms in respect of the part of the unit to beconnected.

Observe the following rules of safety:- All work on the unit must take place in a dry

environment.- ATAG units may never be in operation without their

housing, except in connection with maintenance oradjustments (see Chapter 13 and 14).

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

Carry out the following tasks in connection withmaintenance, etc. to an already-installed unit:- Shut down all programmes- Close the gas tap- Remove the plug from the wall socket- Close the stop cock of the unit’s intake connection

Take note of the following when maintenance oradjustments are needed:- The unit must be able to function during these

activities; for this reason, the unit’s supply voltage,gas pressure and water pressure must bemaintained. Ensure that these are not a source ofpotential danger during these activities.

Following maintenance or other activities;always check the installation of all partsthrough which gas flows (using leak-searchspray).

Following maintenance or other activities,always replace the housing and secure it withthe screw behind the door at the front of thecasing.


The following (safety) symbols may be encountered inthese installation instructions and on the unit:

This symbol indicates that the unit must bestored away from frost.

This symbol indicates that the packagingand/or contents can be damaged as a result ofinsufficient care taken during transport.

This symbol indicates that, whilst still in itspackaging, the unit must be protected fromweather conditions during transport andstorage.

KEY-symbol. This symbol indicates thatassembly or dismantling, must be carriedout.

ATTENTION symbol. This symbol indicatesthat extra attention must be paid inconnection with a particular operation.

Danger: High Voltage!

3 Description of the applianceThe ATAG Blauwe Engel S-HR boiler is a room sealed,condensing and modulating central heating boiler, withor without an integrated hot water facility.The built-in fan sucks the combustion air from outsideand provides full premixing of the gas and air. The gasmixture is guided through the ceramic burner which isfitted above the heat exchanger. As a result of the smallflame height a compact construction is possible. Thecombustion gasses are exhausted after passingthrough the stainless steel heat exchanger. The formedcondensate water is discharged through the waste trap.

The boiler has been tested according to valid CE*standards and has a CE* certificate and SEDBUK A-rating.The operating efficiency of the boiler is higher than 98%(on upper value Hs). As a result of its compactconstruction the radiation, convection and stand bylosses are very low. The emission of damagingsubstances is far below the standard set for equipmentwith the gas quality-control label for clean combustion.

The boiler is provided with an automatic venting program.In case of a recently topped up or filled up installation thisprogram takes care of the removal of any present air in theboiler. In this case the control will check the waterpressure and if it is to low, will report this on the display.

The boiler anticipates the heat requirement of the centralheating installation or the hot water supply. As a result theboiler will adjust its capacity to the installation and willswitch on less often, which means that the boiler willoperate longer and at a low level. It is possible that the boiler

will only have to switch on once an hour. In this case theaim is to obtain maximum comfort and efficiency.

In order to be able to anticipate installation heatemissions the boiler has been fitted with a proportionalgradient control system. After the boiler goes intooperation this control provides a uniform increase ofpower, instead of immediately burning at full power.When the installation does require full power the controlwill adjust as required. By this means a uniform increaseof the water temperature is effected.If an outside sensor is connected, the control willoperate weather-dependent. This means that thecontrol measures the outside temperature and the flowwater temperature. On the basis of this data the controlcalculates the optimal flow water temperature in theinstallation.

The S-HR-T combination boiler provides a hot watersupply by means of a high output cylinder fitted on theright hand side of the boiler. An adjustable thermostaticmixing valve is fitted which provides a constant hot watertemperature (60°C factory setting).

4 Scope of the supplyThe boiler is supplied ready for use. The supply kit iscomposed as follows:- Boiler with casing;- Automatic vent (inside the boiler);- Safety valve (inside the boiler);- Suspension bracket- Filling and draining valve with T-piece;- Fixing material consisting of plugs and screws;- Template on the package wrapper;- Installation instructions- Operating manual;- Warranty card;- Benchmark logbook.

5 Mounting of the boilerThe boiler can be mounted practically to any wall with thesuspension bracket and the enclosed fixing equipment.The wall must be flat and of sufficient strength in order tobe able to carry the boiler weight.Above the boiler there must be at least 250 mm workingspace in order to be able to fit a coaxial flue system or atwin supply. On the left side of the boiler at least 50 mmand on the right side 10 mm must be reserved inconnection with fitting or removing of the casing. Thelocation of the boiler can be determined by using thetemplate located inside the boiler packaging.


5.1 Dimensions

Dimensions (in mm) figure 1

Dimensions (* see figure 2) table 1

tinufoepyt RH-S51

RH-S42

RH-ST42

RH-S53

RH-ST53

RH-S15

RH-ST15

RH-S06

A thgieh mm 086 086 086 086 086 086 086 086B htdiw mm 005 005 048 005 048 066 0001 066C htped mm 073 073 073 073 073 073 073 073D cirtnecnocsageulf/edistfel mm 533 533 533 533 533 594 594 594

E tsuahxesageulf/ertnecotertnecylppusdna mm 021 021 021 021 021 021 021 021

F tsuahxesageulf/kcab mm 072 072 072 072 072 072 072 072G epipsag/edistfel mm 56 56 56 56 56 56 56 56H epipwolf/edistfel mm 581 581 581 581 581 581 581 581J epipnruter/edistfel mm 582 582 582 582 582 544 544 544K epipnoitasnednoc/edistfel mm 073 073 073 073 073 035 035 035L epipknatnoisnapxe/edistfel mm 034 034 095M epipretawdloc/edistfel mm 527 527 588N epipretawtoh/edistfel mm 597 597 559P WHDepipnruter/edistfel mm 574 574 574Q *gfothgnelepip mm 81 81 81 81 81 81 81 81R *kdnacfothgnelepip mm 04 04 04 04 04 04 04 04S *wdnae;r;ffothgnelepip mm 06 06 06 06 06 06 06 06T *cepipfoertnec/kcab mm 52 52 52 52 52 52 52 52U *gepipfoertnec/kcab mm 04 04 04 04 04 04 04 04V *w;k;e;r;fepipfoertnec/kcab mm 05 05 05 05 05 05 05 05

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6 Connecting the boilerThe boiler has the following connection pipes;- The central heating pipes.

These can be connected to the installation by meansof compression fittings;

- The gas pipe.It is provided with a female thread into which the tailpiece of the gas valve can be screwed;

- The condensation drain pipe.It consists of an oval 24 mm plastic pipe. The drainpipe can be connected to this by means of an openconnection. If the open connection is fitted in adifferent location, then the pipe can be lengthenedby means of a 32 mm PVC sleeve;

- The flue gas exhaust system and air supply system.It consists of a concentric connection 80/125 mm.

- Cold and hot water pipes.These consist of 15 mm copper pipe and can beconnected to the installation by means ofcompression fittings.

When removing the plastic sealing caps fromthe pipes, contaminated testing water can bereleased.

It is advisable to spray-clean all of the unit’sconnecting pipes and/or to spray-clean/blow-clean the installation before connecting it tothe unit.

connection diameters table 2

boiler pipes bottom figure 2

g f r c e k w

tinufoepyt RH-S51

RH-S42

RH-ST42

RH-S53

RH-ST53

RH-S15

RH-ST15

RH-S06

tsuahxesageulf/ylppusrianoitsubmoc mm 521/08 521/08 521/08 521/08 521/08 521/08 521/08 521/08g-epipsag edisni"½ edisni"½ edisni"½ edisni"½ edisni"½ edisni"¾ edisni"¾ edisni"¾

f-epipwolfgnitaehlartnec mm 82 82 82 82 82 53 53 53r-epipnrutergnitaehlartnec mm 82 82 82 82 82 53 53 53c-epipegrahcsidnoitasnednoc mm 42 42 42 42 42 42 42 42

e-epiplessevnoisnapxe mm 22 22 22 22k-epipretawdloc mm 51 51 51w-epipretawtoh mm 51 51 51d-WHDepipnruter mm 82 82 82

g f r c e d


6.1 Central heating system

The boiler pipes can be connected to the installation bymeans of compression fittings. Reducers should be usedfor connecting to thick-walled pipe (welded or threaded).

The boiler has a self-adjusting and self-protecting controlsystem for the load and the pump capacity. By this meansthe temperature difference between the flow and returnwater is checked. The circulation pump will be able tosupply the given water displacement with an installationresistance of up to 20 kPa, for this see table 3.

If the installation resistance is higher than the stated value

If an unacceptable temperature is detected, then thecontrol will repeatedly try to achieve water flow, and if thisdoes not work then the boiler will switch off.

The S-HR 60 boiler has a circulation pump which has aresidual suction head for the installation of 20 kPa. Thismeans that the boiler can function normally in installationswhich have an installation resistance of up to 20 kPa andin cascade installations.If the installation resistance is higher than 20 kPa, theboiler will automatically reduce in power.

If the capacity of the boiler pump is insufficient, an extraexternal pump can be installed in series with the boiler.The electrical side of this external circulation pump canbe connected in the Control Tower, by which means thispump switches at the same times as the boiler pump.The maximum absorbed current consumption of theexternal circulation pump may be 230 W (1 Amp).Use with a low velocity header can also be selected. Inthis case a larger secondary sided water output has tobe taken into account, in order to affect the maximumwater temperature.

the pump will rotate at maximum pump capacity and theload will be adjusted until an acceptable temperaturedifference between flow and return water has beenobtained. If, after this, the temperature difference remainsto much then the boiler will switch itself off and wait untilan acceptable temperature has arisen.

available water flow at full load table 3

external installation pump in series figure 3

tinufoepytpmuP

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51RH-S 06-02 5,9 075 24 024

T42/42RH-S 06-02 1,51 809 03 003

T53/53RH-S 06-02 1,22 4231 02 002

T15/15RH-S 07-02 1,23 4291 52 052

06RH-S 07-02 8,73 7622 02 002

pump index lines graph 1

Q(m³/h)

100% UPER 20-70

S-HR

15,

24,

35

S-HR

24T

i, 35

Ti

S-HR 51

TiS-H

R 51, 6

0

100% UPER 20-60

H(m)

25% UPER 20-60

25% UPER 20-70


As standard the boiler is provided with a water filter in thereturn pipe of the boiler. With this, possible contaminationof the central heating water is prevented from ending upin the boiler. The boiler is also provided with an internalsafety valve set at 3 bar. This is connected to the wastedischarge together with the condensation discharge.

If all, or a large part of the radiators are providedwith thermostatic radiator valves it is advisable touse a pressure difference control (bypass) in orderto prevent flow problems in the installation.

The boiler is designed to be used on sealedsystem only.

Additives in the installation water are onlypermitted in consultation with the countrydistributor.

When using more than one boiler in an installationplease refer to the cascade installation instructions.

6.2 Expansion vessel

All ATAG Blauwe Engel S-HR-24T and 35T boilers areprovided with an expansion vessel on top of the cylinder.This expansion vessel is connected to the three-way valveand the circulation pump. By this means the expansionwater, when functioning for the hot water supply, isprevented from being shut off from the expansion vesselwhen the radiator thermostat valves are fully closed. TheATAG Blauwe Engel S-HR 51T is provided with aexpansion vessel connection. The expansion vessel ofcorrect size must be connected to this pipe. A secondexpansion vessel in the installation is not a problem.

The ATAG Blauwe Engel S-HR boilers are not equippedwith an expansion vessel connection. If a S-HR boiler iscombined with an Comfort cylinder, the expansion vesselconnection is included in the internal piping of the Comfortcylinder, to which the expansion vessel can be connected.If a different cylinder is used then one has to take intoaccount that the expansion vessel should be connectedbetween the three-way valve and the boiler circulationpump.

In connection with correct functioning of theboiler it is necessary for the expansion vesselto be connected to the expansion vessel pipeof the boiler.

The expansion vessel which is used should be gearedto the water content of the installation. The pre-chargepressure depends on the installation height above themounted expansion vessel.

external installation pump with low velocity header figure 4

choice of expansion vessel table 4

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The ATAG S-HR24 and S-HR35 boilers can be providedwith an expansion vessel module. By this means theexternal expansion vessel is cancelled. This expansionvessel module is placed behind the S-HR boiler, by whichmeans the expansion vessel is not noticeable. If the S-HRboiler is provided with a ATAG Comfort cylinder the overalldepth will be equal. The content of the two expansionvessels is 20 litres. The pre-charge pressure is 1 bar.

The expansion vessel module can be supplied with thenecessary pipes to connect with the S-HR boiler. Theconnecting pipes for the installation correspond withthose of the boiler and have the same centre-to-centredistance to the wall. When checking the expansionvessels these are accessible via the left, right and uppersides. From these sides the tanks are also removableand the boiler does not have to be dismantled.


The space which is required for mounting the expansionvessel module corresponds with the required space formounting an S-HR boiler. They included template andmounting strip for the S-HR boiler which can be used forthe expansion vessel module. The S-HR boiler is fitted onto this after the expansion vessel module has beenmounted. The necessary mounting strip for the boiler ispresent on the module.Article numbers:- the expansion vessel module without pipe

connections AA1EM09U- pipe connections for expansion vessel module

AA1LE04U

expansion vessel module figure 5side view of the module with S-HR boiler figure 7(dimensions in mm)

515

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145 370

front view of the expansion vessel module figure 6(dimensions in mm)

480

660

105

6.3 Underfloor heating system (plastic pipes)

When connecting or using an underfloor heating system,designed with plastic pipes, or plastic pipes are usedelsewhere in the installation,one should ensure that theplastic pipes used comply with the DIN 4726/4729standard. It is set out in this standard that the pipes maynot have oxygen permeability higher than 0.1 g/m³.d at40°C. If the system does not comply with this DINstandard, the underfloor heating component will have tobe separated from the central heating appliance bymeans of a plate exchanger.

No recourse can be made to the terms of thewarranty in the event of failure to observe theregulations pertaining to plastic underfloorheating pipes.


6.4 Gas connection

The appliance pipe is fitted with an internal thread, intowhich the tail piece of the gas tap can be screwed.

United Kingdom:The gas supply must comply to the current Gas SafetyRegulations.

Ireland:- Irish standard 813- Domestic gas installations

The connection to the appliance must include a suitablemethod of disconnection and a gas control cock must beinstalled adjacent to the appliance for isolation purposes.The nominal inlet working gas pressure measured at theappliance should be 20 mbar for Nat gas (G20).

Make sure that the gas pipe work does notcontain dirt, particularly with new pipes.

6.5 Hot water supply (S-HR-T)

The sanitary water pipes can be connected to theinstallation by means of compression fittings.The cold water inlet on the S-HR-T boilers must beprovided with the following (counted in the water flowdirection):- Dosing valve (supplied);- Safety group;- Expansion vessel 6bar (potable water, blue).

A dosing valve must be fitted in the cold water pipe. Thedosing valve provides that a quantity of water is suppliedwhich has a guaranteed outlet temperature of 60°C(assuming a cold water temperature of 10°C). Thequantity of water is virtually unaffected by the waterpressure. With a water pressure lower than 1.5 bar it isadvisable to remove the inside mechanism of the dosingvalve. Connecting of the drinking water installation shouldbe done according to the national water laws.

6.6 Hot water supply S-HR 15, 24 and 35

Depending of the comfort preferences different external hotwater cylinders can be connected to the boiler. The choiceof the cylinder depends on the coil output. The coil outputmust comply with the boiler output. The S-HR 15, 24 and35 are provided with an internal 3 way valve. The return pipeof the cylinder is simply connected to the connection underthe boiler. The flow pipe of the cylinder must be connectedto a T-piece in the flow pipe of the boiler. The electricalconnection are already made on the connection terminal inthe Control Tower. Only the wire of the cylinder sensorshould be connected to the terminal. See the wiringdiagram on page 14 and 15.

By the SH-R 51 and 60 with larger cylinder pipes (coilresistance) we recommend the use of a cylinder pump.

6.7 Condensation drain pipe

The collective condensation drain pipe should be connectedto the drain by means of an open connection. By this meansthe possibility of drain gases ending up in the boiler isprevented. The drain connection should have a minimumdiameter of 25 mm.

The following components are connected to the collectivecondensation drain pipe:- Condensation discharge;- Safety valve;

Draining of the condensation water to theexternal rain guttering is not permitted inview of the danger of freezing.

Before putting the boiler into operation fill thesiphon with 300 ml of water.


We recommend that you use a stainless steel flue gasoutlet material. Using the ATAG icicle-free roof outletprevents ice from building up on the roof outlet.

Flue systems must comply with the current regulations.It is essential that in practice, products of combustiondischarging from the terminal cannot re- enter the buil-ding or any other adjacent building through ventilators,windows, doors, other sources of natural or mechanicalair infiltration from forced ventilation or air conditioningsystems.

Horizontal sections of flue sections of the flue systemshould always be installed sloping towards the boiler, inorder to avoid condensate lying in the flue system.The minimum gradient is 30mm/Mtr. With the condensaterunning back to the boiler the risk of ice forming at theterminal is reduced.

The terminal should be located where dispersal ofcombustion products is not impeded and with dueregard for the damage or discolouration that might occurto building products in the vicinity (see fig 9).In certain weather conditions condensation may alsoaccumulate on the outside of the air inlet pipe. Suchconditions must be considered and where necessaryinsulation of the inlet pipe may be required.

length supply and exhaust system table 5

ehtsedulcnimetsysylppusriadnasageulfetelpmocehT.lanimretllawrofoorehtdnatcudegrahcsidsageulfehtrofsisertemnihtgnelepipdetatsmumixamehTehtneewtebecnatsidehtsidnametsystsuahxe/ylppus

.lanimretllawrofoorehtdnatinutinufoepyt epipraenilmumixam

521/08htiwsertemnihtgnelmm

51RH-S 71

T42/42RH-S 71

T53/53RH-S 5,11

T15/15RH-S 5

06RH-S 5,2

eht,metsystsuahxeroylppusehtnisdnebgnisunehWraenilehtotdeddaebtsum,wolebdetatshtgneltnelaviuqe

.shtgnelepipdnamm521/08tcudtsuahxesertem01htiw42RH-S:elpmaxE

4,21=ertem2,1x2+sertem01:snaemsihT.sdneb°09x2.htgneldettimrepmumixamehtnihtiwsisihT.ertem

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Dimensions table 6

figure 9

supply and exhaust system figure 8

6.7 Flue gas exhaust system and air supplysystem

The appliance connection diameter is 80 mm, to whichthe flue gas outlet and air supply system can be fitted,with or without elbow pieces. It is also possible to use aconcentric connection. The maximum permissible pipelength is set out in Table 5.It is also possible to use a parallel pipe connection of 2x80mm. In this case a seperate cover 125mm schould beordered.

United Kingdom:The flue gas outlet and air supply installation mustcomply with the current regulation requirements. IG UP10 and BS 715.

Ireland:- Irish standard is 813 section 9.10.1


In cold and/or humid weather water vapour may condenseon leaving the flue terminal. The effect of such ‘steaming’must be considered.

The terminal must not be located in a place where it islikely to cause a nuisance.For protection of combustibles, refer to IS 813 section9.10.1. where the terminal is less than 2m (6.6ft) abovea pavement or platform to which people have access(including) any balcony or flat roof the terminal must beprotected by a guard of durable material.A suitable guard is available from the country distributor.

Where a terminal is fitted below a windowwhich is hinged at the top, and where thehinge axis is horizontal, and the windowopens outwards, the terminal shall be 1mbelow the bottom of the window opening.

If the boiler is to be located under stairs, asmoke alarm meeting the requirements of I.S.409 or equivalent must be fitted.

The flue must be terminated in a place notlikely to cause a nuisance.

For horizontal sections, the outlet system should alwaysbe fitted on an incline (30 mm/m) sloping down towardsthe appliance so that no condensation water is able toaccumulate in the outlet system. The chances of iciclesforming on the roof outlet is minimised by causing thecondensation water to run back towards the appliance.In the case of horizontal outlets the inlet system shouldbe fitted on an incline sloping down towards the outsideto prevent rainwater from coming in.

Fitting an additional condensation collection device inthe outlet system is surplus to requirement.

The appliance produces a white wisp of condensation.This wisp of condensation is harmless, but can be foundto be unpleasant, particularly in the case of outlets inoutside walls.

The appliance is not suitable as an "open"appliance. This means that combustion airshould always be obtained through a directconnection.

For further information regarding the supplyrange of the exhaust and supply systemplease contact the country distributor.


7 External hot water cylindersVarious external hot water cylinders can be connected toa S-HR boiler, depending on the hot water require-ments.The wiring of the cylinder thermostat can be connected tothe connection block in the Control Tower by means of therelevant plug.

S-HR51 and S-HR60Consult your supplier when using cylinderswith lower absorption than 35kW or primarypipe and/or coil size less than 1 inch.

S-HR with external cylinder figure 10

8 Electrical connectionThe appliance complies with the CE Machinery Directive89/392/EEC. The EC Low Voltage Directive 72/23/EECand the EC EMC Directive 89/336/EEC.A 230V -50Hz mains electrical supply is required fusedexternally at 5A.

The installation must continue to comply with:United Kingdom:- the national rules for electrical installations.

Ireland:- the ECTI 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 ATAGmains power supply cable (item No. S4407300).

The ATAG room thermostat and controls must beconnected to their allocated connections. All othertypes or makes of room thermostats or controlswhich are used must have a Volt free contact.

When using an on/off thermostat or control, it is possiblethat an anticipating resistance must be installed in orderto prevent too high temperature fluctuations. As a stand-ard rule this means mercury thermostats. This resis-tance wire is present in the Control Tower and must beconnected to clamps 23 and 27. The anticipating resis-tance in the room thermostat has to be set at 0.11 A.

For more detailed questions regarding the componentswhich are not supplied, the country distributor should becontacted.

All electrical connections must be done onthe connection block in the Control Tower.

230

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230

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11


9 Boiler controlsThe boiler is provided with a fully automatic micropro-cessor control. This control simplifies operation byundertaking all major control functions. Initially whenpower to the unit is switched on it will remain on standby.The control panel display will show the relevant state.The various parameters can be called up in two ways:

The state.In this state the display will show during allnormal operating functions of the appliance. Should afault develop this will be shown on the display.

The technical read out.Start from the state by pressing the Step key for5 seconds. Returning from this to the display isdone in the same way. From the technical read out a moreextensive read out can be obtained e.g. the boiler flowtemperature and the water pressure in the central heatingsystem.

When the system has been filled and the automatic ventingprogram starts, when a program has been selected, theprogram takes 15 minutes and stops automatically. Afterthis the unit will function normally.

On a call for heating or hot water the control system willselect the required water control temperature. This watertemperature is called the T-set value. On a call for centralheating the boiler ignites first at low input. The input isthen changed slowly to match the load required. Theboiler operates in this way to avoid excessive waternoises and temperature overshoot. On a call for hot watersupply the T-set value of central heating return watertemperature is monitored. Depending on the amount ofsanitary water which is withdrawn from the DHW cylinder,the central heating return water temperature, from whichthe input is adjusted, will vary.

9.1 Explanation of the function keys

Key functions from the and the extensiveindication are:

- Central Heating program key, see chapter10.1;

- Hot Water program key, see chapter 10.2;- PC program key, adjusts the pump to continuous

water circulation in the central heating system, oraccording to the pump overrun times on the relevantprograms;

- Step key, after briefly pressing, the water pressurecan be retrieved and pages per chapter can beretrieved. After pressing for 5 seconds it switchesfrom indication to technical indication and theother way round;

- Mode key, after briefly pressing, a selection of thedata chapters can be retrieved. After pressing for 5seconds it is possible to enter the code as describedin chapter 10.3;

- Reset key, after briefly pressing, for:unlocking errors;ending the access code;ending the automatic venting program, only whenthe access code is entered and the reset key ispressed briefly.After pressing for 5 seconds an operating stop ismade, for example, for activating the automaticventing program.

Other key functions from the other indications are:

- Central Heating key then has the + function;- Hot Water key then has the - function;- PC key then has the store function, which means

that by means of this key a modified setting isconfirmed;

- Step key for scrolling in a data chapter.


10 Filling and venting the boilerand installation

Filling of the system is carried out in the normal way. Inorder to read out the central heating water pressure theelectrical supply must be switched on.

The circulation pump will not begin to operate as long asthe operating lamps are off. The control display will showa indication, which means that the control issignalling insufficient water pressure. If the installation isfilled and the water pressure rises then the waterpressure will automatically be shown with an alternating

text. If the water pressure rises to above 1.5 barthen after a short “stop” text the indication willappear, which means the water pressure is sufficient andthe boiler is ready for operation.In order to be able to read out a constant water pressurethe Step key should be pressed in and in order to obtaina constant readout the Step key should bepressed briefly again.

If the water pressure in the boiler becomes to high (>2,8bar) a text appears, by which means the burneris switched off. After draining the water from theinstallation, by which means the water pressure arrivesbelow 2,5 bar, the text disappears and the burneris activated.

In order to go from a read-out to a technical readout the Step key should be pressed for 5

seconds. This read-out can be selected if the userrequires a technical read out. In order to return to the

read-out the Step key must be pressed again for5 seconds.

10.1 Central heating system

To fill the central heating system use the filling and drainvalve provided.

Fill the system as follows.- Turn on the electrical supply and leave the

operational lamps off;- Connect the filling hose to the cold water tap and let

it fill with water;- Connect the filled filling hose to the filling and

draining valve and open this valve;- Open the cold water tap and fill the installation

slowly;- The boiler has an automatic vent which removes the

air which is present;- Start venting the radiators and pipes at the lowest

point;- Bring the installation to pressure (1.5 to 2 bar) after

all radiators and pipes have been vented;- Close the cold water tap and the filling and draining

valve;

- Activate the automatic venting program by pressingthe pump key which means the pump lamp will beilluminated. Allow the control to finish its ventingprogram. The pump will circulate a number of timesaround the boiler as well as the central heatinginstallation.Also, if a three-way valve, if present, this will beadjusted to the boiler and central heating installationa number of times. The pump will be stoppedregularly in order to allow possible present air toescape.

- Check the water pressure and if required top up. Theworking pressure in the installation should be bet-ween 1.5 and 2 bar in cold state.

- After finishing the automatic venting program the key can be switched off again.

It can take a while before all air has dis-appeared from a filled installation. Especiallyin the first week noises can be heard whichindicate the presence of air. The automatic airvent in the boiler will make this air disappear,by which means the water pressure canreduce during this period and therefore top-ping up with water will have to be done.

10.2 Hot water supply

Apply the water pipe pressure to the cylinder (open mainvalve and/or stop valve of the safety group).

Vent the cylinder and the hot water installation by openinga hot water tap. Leave the tap open for as long as requireduntil all air has disappeared from the cylinder and thepipes and only water is flowing from the tap.


11 Commissioning the boilerBefore the boiler is fired, ensure that the boiler and thesystem are well vented and free of air. Purge the gas linebetween the gas meter and the boiler and carry out agas soundness test as specified in the current GasSafety Regulations.The boiler does not require adjustment of the burnerpressure and air quantity because it is self adjusting andis factory set at the correct value.

11.1 Central Heating system

Provided there is a heat requirement from thethermostat or control, the central heating program willbe put into operation by means of the key (centralheating program). The circulation pump will startcirculating and the boiler will start the burner.

11.2 Hot water supply

Provided there is a heat requirement from the cylinderthe hot water program will be put into operation bymeans of the key (hot water program).

11.3 Adjustments

In the Control Tower a number of adjustments can bemade. These adjustments can be fed in easily by meansof the keys on the boiler. However, a distinction is madebetween adjustments which are done by the user andadjustments done by the installer.At users level adjustments can only be made from thetechnical read-out in other words from the display read-out with the operating function and the watertemperature. Adjustments can not be made from the

indication.

The next two chapters are accessible after pressing theMode key:Chapter 1 The normal operating functions such as the simple

read out or the technical with the read out.

Chapter 2 The chapter in which adjustments can be made.


User adjustmentsTo switch from the level to the operatingstatus level with the read out of the operatingfunctions , the water temperature and thewater pressure , the following acts must becarried out. From the display read-out, press theStep key for 5 seconds after which the operatingstatus and the water temperature will be shownfor 8 seconds and the water pressure for 2seconds. If, after this, the Mode key is pressedbriefly the “adjustments” chapter is displayed bymeans of the text . By pressing the Stepkey briefly the adjustment facilities are shown.Adjustment of the fixed value can be made bymeans of the ‘+’ or the ‘-’ key. Confirmation of thenew setting is done with the Store key.

* ATAG Brain thermostatMost of the adjustments which are stated intables 7 and 8 are unnecessary when incombination with the Brain and will be takencare of by the Brain itself and do not have tobe adjusted. Most of the data in table 8 can berequested by the Brain. For further informa-tion with regard to the Brain thermostat werefer to the Brain thermostat installationmanual.

In order to gain access to the adjustments atinstallers level the entrance code has to be fedin first. For this the following operations have tobe carried out.

Press the Mode key for 5 seconds. The text is shown, after which a random number

appears on the display. By means of the + or the- key the code can be fed in. Afterpressing the Store key the code is confirmed.With this code the installers level can beaccessed.

The next chapters are shown after pressing theMode key:Chapter 3 The chapter where information can be retrieved.

Chapter 4 The chapter in which adjustments can be madefor service purposes.

Chapter 5 The chapter in which error data can be retrieved.

user adjustment possibilities table 7

stnemtsujdaretemarapresUpetS noitpircsed yrotcaf egnar1 gnitaehlartnec.pmetretawwolfmumixam C°58 C°09-022 metsysgnitaehlartnecfoepyt 10 4-1

10 srotcevnoc;gnitaehria;srotaidarretawwolfxamT C°58 .motuaenilgnitaehrotcafK 3.2 .motua

tneidarg nim/C°5 .motualaitnereffidraeg C°6 .motua

20 lanoitiddasagnitaehroolfrednurosaeraecafrusegralhtiwsrotaidargnitaeh

retawwolfxamT C°07 .motuaenilgnitaehrotcafK 8.1 .motua


30 gnitaehlanoitiddasasrotaidarhtiwgnitaehroolfrednuretawwolfxamT C°06 .motuaenilgnitaehrotcafK 5.1 .motua


40 gnitaehroolfrednullufretawwolfxamT C°05 .motuaenilgnitaehrotcafK 0.1 .motua


*01 erutarepmetyadenilgnitaehtnemtsujdaenif 0 5tot5-*11 erutarepmetthginenilgnitaehtnemtsujdaenif 0 5tot5-32 erutarepmetytefastsorf C°3- C°01tot02-

13 rednilyclanoitiddafoerutarepmetffo-hctiwsreliobRH-Shtiw C°36 C°08-04

84 )06/15RH-S(yticapacpmupmuminim )%05(%52 %001-52* eeS tatsomrehtniarBGATA

heating line settings graph 2

outside temperature in °C

flow

tem

pera

ture

in °

C


Installers adjustmentsAdjustments whereby technical knowledge is requiredhave been classified under the installers level. Access tothis level is obtained after feeding in a code, after whichadjustments for user and installer are visible. For going tothe “Adjustments Parameters” chapter the Mode keyshould be pressed once after which it is shown with the

text. Scrolling in the parameter chapter can becarried out by means of the Step key. Adjusting the fixedvalue can be undertaken by means of the “+” or “–” key.To confirm the new adjustments press the Store key.

installer adjustment possibilities table 8

rellatsnistnemtsujdaretemarapartxE

petS noitpircsed yrotcaf egnar

3 Wknignitaehlartnecrewopxam mumixam xam-nim

*4 elpicnirplortnoctatsomrehtffo/nohtiw 0 1-0

0 tatsomrehtffo/no%001

1 tnednepedrehtaewffo/no%001

*5 rotcafKenilgnitaeh 3.2 5.3-2.0

*6 tnenopxeenilgnitaeh 4.1 4.1-1.1

*7 enozetamilcenilgnitaeh 01- 0-02-

*41 deepstneidarg 7 51-0

*51 noitcuderthginretfaretsoob 0 1fo0

0 on

1 sey

63 evlavyaw-eerhtfoepyt 0 3-0

0 0102CV

1 gnitaludom0496CV

34 Wkniretawtohrewoprewopxam mumixam xam-nim

94 yticapacpmupxamgnitaehlartnec %001 %001-04

98 ecafretnignittessserdda 0 7-1-

1- eraps

0 niarB

7-0 edacsaCni8-1reliob

eeS* tatsomrehtniarBGATA 91egapno

Information chapter.After feeding in the access code the information can beread out according to table 9. In order to select theinformation chapter the Mode key must be pressedtwice after feeding in the code. New adjustments cannot be made in this chapter. Scrolling in the informationchapter is possible by means of the Step key.

installer information possibilities table 9

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��+ ��

, � ��

- � ��

. ��

/ � ��

0 � ��

1, ��

/, !�� !

0, !�� !

23 ��

,3 ��"# "#

33 ��$��"# "#

43 ��$��"# "#

-3 ��$�� $

.3 ��$��$�� $

13 ��$��$�� $

34 ��$�� $

1- ��%��&��$'��$��$�� $


Service chapter.After the access code has been fed in it is possible totemporarily manually adjust the number of revolutionsof the fan in the service chapter (table 10). In order toselect the service chapter the Mode key has to bepressed 3 X after feeding in the access code. By meansof the Step key the first function is displayed with the textOff. By means of the + or - key a required number ofrevolutions for the fan can be selected while the boiler isoperating.With Step 4 it is possible to activate the showroomposition by pressing the + key after which the text “on”appears in the display.After this a simulated water pressure of 1.9 bar and awater temperature will be indicated. Pump or burneraction is not possible.

Error chapter.After the access code has been fed in the Error chaptercan be read (table 11). In order to select the Error chapterit is necessary to press the Mode key 4 X after feeding inthe access code. By means of the Step key the functionsare shown which were stored when the boiler went into anerror state. The first error which is shown is the last, thenext error is the second last, etc.

In order to return to the normal technical read out wherebythe water temperature and water pressure are shown, theStandby chapter must be requested by means of theMode key. After a few seconds the text standby will bereplaced by the technical read-out.Other wise returning to the “Good” read-out auto-matically occurs after 20 minutes in the event that nomore keys have been used.

installer service possibilities table 10

installer error possibilities table 11

��

��+ ��

, ��

3 ��

4 � ��

- � ��

. �� !

1 '��

��+

��+ ��

, ��$��

3 ��(��

4 ��$��(��

- �&��)**+��&��),+��$�

Green key functionThe green key function can be used in order to activate thefactory settings. By this means the modified settings arecancelled. The following actions must be carried out.Make sure that chapter is shown in the display bymeans of the Mode key. After this press the Store key.The word Copy becomes visible and the factory settingswill be active again.

12 Isolating the boilerIn some situations it may be that the entire boiler must beswitched off. By switching off the three keys with thelamps for central heating, hot water and pump program,the boiler is switched off. Leave the plug in the wallsocket, by which means the circulation pump and thethree-way valve are activated once every 24 hours inorder to prevent jamming.

In the event of frost danger it is advisable todrain the boiler and/or the installation.


13 CommissioningThe top of the casing is hooked behind a locking edge andis locked behind the door on the front of the casing witha screw. After removing this screw the casing must belifted at the bottom by which means it is released from thelocking edge. Then the casing can be removed forward.

With the S-HR settings such as burner pressure andadjustment of the air quantity are unnecessary, due tothe fact that the boiler operates with a so-called zeropressure control. By this means the correct gas quantityis controlled by the suction operation of the fan. The fineadjustment which is carried out at the factory is once-only, which means that adjusting of these values isunnecessary.

13.1 Checking for contamination

In order to be able to check the boiler for contaminationin the following running years it is advisable to measurethe maximum air displacement in the boiler whenputting the boiler into operation. This value can bedifferent with each type of boiler.

In order to be able to measure this value the followingoperations must be carried out:- in order to enter the service chapter feed in the

access code as described on pages 19-21;- select the manual fan setting without burner action

Step , by means of the Step key which willindicate that the fan is off ;

- connect the digital pressure gauge hose to theuppermost measuring nipple of the gas blockaccording to figure 12(open it before fitting the hose);

- take the fan to its maximum number of revolutions bymeans of the + key;

- measure the pressure difference and write down thisvalue;

- when next servicing the boiler the value of the fanoutput may not have reduced by more that 20%compared to the value during commissioning. If thisvalue is lower than 20% the boiler does not requiremaintenance.

13.2 Checking of the zero pressure control

The zero pressure control is set at the factory. This canbe checked by means of the following action;- make sure that the boiler is in operation and that it

can discharge the heat which it produces;- in order to enter the service chapter feed in the

access code as described on page 21;- select the manual fan adjustment with burner action

Step by means of the Step key, which willindicate that the manual operation is off ;

measuring point air pressure difference figure 12


- connect the digital pressure gauge hose to theuppermost measuring nipple of the gas blockaccording to figure 13;

- activate the manual control by briefly pressing the“-” key;

- take the fan to minimum load by means of the “-” key,after which the measured pressure difference mustbe between 0 and -4 Pa ;

- ending the manual selection is done by pressing the“-” key until the minimum load is displayed. Afterpressing this key again the text is shownwhich means that the manual selection is off.

If it is determined that the zero pressure control deviatestoo much, then it can be corrected by means of theadjustment screw on the gas block.

13.3 Checking the CO2

The CO2 percentage is factory-set. This can be checkedby means of the following actions:- put the boiler into operation by means of the service

chapter as described in chapter 11.2;- place the lance of the CO2 gauge in the location

according to figure 14;

- adjust to maximum load by means of the “+” key;- ending the manual selection is done by pressing the

“-” key until the minimum load is shown. After pressingthis key again the text is shown which meansthat the selection is off.

- adjust the CO2 percentage according to table 12. TheCO2 percentage can be adjusted by means of theadjustment screw according to figure 15.

adjustment screw zero pressure control figure 13

measuring point for CO2 figure 14

adjustment screw CO2 figure 15


14 MaintenanceMaintenance or changes to the unit may onlybe carried out by an authorised technician.

14.1 The frequency of maintenance

We advise to carry out an inspection to the boiler everytwo years and an overhaul every four years. When doingthis the circumstances of the boiler’s location must betaken into account. From this one can determine whetherto deviate from this advice.

14.2 Maintenance activities

If it is necessary to clean the boiler the following actionsto the following components must be carried out:

The air boilerDirt which is sucked in by the air supply pipe will end upin the bottom of the air box. This dirt can be cleaned witha cloth with a simple (non-abrasive) cleaning agent.

Do not use an abrasive agent for cleaning,this causes disturbing scratches in the airbox.

The burner ceramic bricks and heat exchangerThese components should only be cleaned if it isdetermined that the maximum Pa is no longer obtainedas described in chapter 12.1.

The fan unit must be removed in order to be able toinspect the heat exchanger. In this case the followingactions must be carried out:- close the gas valve and isolate the boilers electrical

supply;- turn the Control Tower forward around its left hinge

point and remove the plastic air box;- loosen the nut of the gas pipe under the gas block;- loosen the small crosshead screw on the red

electrical connection adaptor of the gas block;- remove the electrical connection plug from the fan

motor;- loosen the front crosshead screw of the black plastic

air inlet damper;- after this turn the two clamping rods ¼ turn and

remove them by pulling them forward;- slightly lift the fan unit and remove it towards the front

of the heat exchanger;- the fan unit and the air inlet damper can be checked

for contamination and if necessary cleaned;- now remove the burner ceramic bricks by slightly

lifting them upward and removing them in the samedirection as the heat exchanger fan unit;

- the burner ceramic bricks and the heat exchangercan be cleaned by means of a soft brush;

Refitting of the components is done in reverse.

The following components require extra attention during theservice procedure and when dismantling and reassenblingthe burner:- ensure that the orange gasket that fits around the

ceramic brick has not heat hardened or perished inany way, if it has, it is essential that the gasket isreplaced before continuing to reassemble the boiler. Ifin any doubt replace the gasket;

- make sure that the burner gasket is fitted onto the heatexchanger precisely;

- make sure that the fan unit clamping rods have beenpushed backward sufficiently and that they haveagain been turned ¼ turn;

- make sure that the gas connection under the gasblock is tightened;

Following maintenance or other activities;always check the installation of all parts throughwhich gas flows (using leak-search spray).

The siphonIn order to check the siphon for contamination the followingactions must be carried out:- make sure that the boiler is off by isolating the boilers

electrical supply;- turn the Control Tower forward around its left hinge point;- turn the siphon cup to the left until it is released from

the screw thread;

Do not use pliers or wrenches for removingthe siphon cup

Refitting is done in reverse order.

14.3 Further checks

Checking the ionisation current.- ionisation determines if there is a flame present with

correct combustion. The measurement is done bymeans of connecting a micro Ampere gauge in serieswith the ionisation thread. The minimum allowedionisation is 2 µA. The boiler will modify its load anywayif the ionisation reaches the bottom limit of 2 µA.

Checking by means of a visual inspection.- A visual inspection entails viewing and checking of a

number of components with regard to their functioning.The safety valve may not show any traces of leaks.The waste trap should be clean.The central heating water filter only requirescleaning if the circulation pump is adjusted at maxi-mum speed and the maximum T is exceeded.

Following maintenance or other activities,always replace the housing and secure it withthe screws.

Complete the Benchmark Service RecordLog Book as required and hand back tocustomer.


15 Technical specifications

boiler specifications table 12

epytecnailppa RH-S51

RH-S42

RH-ST42

RH-S53

RH-ST53

RH-S15

RH-SLT15

RH-S06

)sH(tupni Wk 0,51 0,42 0,42 0,53 0,53 0,15 0,15 0,06

)iH(tupni Wk 5,31 6,12 6,12 5,13 5,13 9,54 9,54 0,45

)C°06/08yticapac(egnarnoitaludom Wk 3,31-5,3 2,12-5,3 2,12-5,3 9,03-9,4 9,03-9,4 -8,8 9,44 -8,8 9,44 9,25-8,8

)C°03/05yticapac(egnarnoitaludom Wk 4,41-9,3 0,32-9,3 0,32-9,3 6,33-3,5 6,33-3,5 7,84-5,9 7,84-5,9 2,75-5,9

)daollluftaC°06/08(ycneiciffe % 89 89 89 89 89 89 89 89

)daollluftaC°03/05(ycneiciffe % 701 701 701 701 701 601 601 601

776NEhtiwecnadroccaniycneiciffe % 901 901 901 901 901 901 901 901

xONfonoissimeylraey mpp 21 21 21 21 21 21 21 21

OCfonoissimeylraey mpp 11 11 11 11 11 11 11 11

OC 2 )02G( % 9 9 9 9 9 5,9 5,9 5,9

)daollluftaC°06/08ta(erutarepmetsageulf C° 56 56 56 76 76 86 86 86

)daolwoltaC°03/05ta(erutarepmetsageulf C° 13 13 13 13 13 13 13 13

lortnocrenrub noitaludomsselpets

02G)C°0/rabm3101ta(noitpmusnocsag h/³m 23,1 01,2 01,2 70,3 70,3 74,4 74,4 62,5

epytrenrub cimarec cimarecmaof

epyttnerruc zH/V 05/032 05/032 05/032 05/032 05/032 05/032 05/032 05/032

dedrocerrewopcirtcelemumixam W 29 29 29 511 511 212 212 212

dedrocerrewopcirtceleybdnats W 5 5 5 5 5 5 5 5

92506NEotgnidroccanoitcetorpfoeerged 04PI 04PI 04PI 04PI 04PI 04PI 04PI 04PI

)ten(thgiew gk 05 05 37 35 67 36 68 36

desab-HCyticapacretaw l 5,3 5,3 5,3 5 5 7 7 7

desab-WHDyticapacretaw l 41 41 31

HCemitnurrevopmup nim 51 51 51 51 51 51 51 51

WHDemitnurrevopmup nim 1 1 1

muminim erusserpretaw rab 1 1 1 1 1 1 1 1

mumixam erusserpretaw rab 3 3 3 3 3 3 3 3

erutarepmetretawwolfmumixam C° 09 09 09 09 09 09 09 09

C°06taetarwolfWHD nim/l 6 5,8 5,21

C°54taetarwolfWHD nim/l 5,8 5,21 5,71

epytpmup dnurGsof

REPU06-02

REPU06-02

REPU06-02

REPU06-02

REPU06-02

REPU07-02

REPU07-02

REPU07-02

daehpmupelbaliava aPk 24 03 03 02 02 52 52 02

tnetnoclessevnoisnapxe l 21 21

erusserpegrahc-erplessevnoisnapxe rab 1 1

epytecnailppa RH-SP51

RH-SP42

RH-SPT42

RH-SP53

RH-SPT53

RH-SP15

RH-SPLT15

RH-SP06

)sH(tupni Wk 0,51 0,42 0,42 0,53 0,53 0,15 0,15 0,06

)iH(tupni Wk 8,31 1,22 1,22 2,23 2,23 9,64 9,64 2,55

)C°06/08yticapac(egnarnoitaludom Wk 3,31-6,9 2,12-6,9 9,03-2,51 9,44-2,91 9,25-2,91

)C°03/05yticapac(egnarnoitaludom Wk 4,41-4,01 0,32-4,01 6,33-5,61 7,84-9,02 2,75-9,02

OC 2 )GPL( % 5,01 5,01 5,01 5,01 5,01 5,01 5,01 5,01

)GPL(noitpmusnocsag h/gk 0,1 7,1 7,1 4,2 4,2 7,3 7,3 2,4

)GPL(noitpmusnocsag h/³m 5,0 8,0 8,0 2,1 2,1 8,1 8,1 1,2

erusserpgnikrowtelnisaG rabm 03 03 03 03 03 03 03 03


G gas pipeA flow connection central heatingR return connection central heatingC condensation pipeE expansion vessel (only S-HR 24T and 35T)E1 expansion vessel pipe (only S-HR 51T)K cold water pipe (S-HR-T)W hot water pipe (S-HR-T)

T1 flow sensorT2 return sensorT3 cylinder sensor HWS (S-HR-T)T5 flue gas sensor (if fitted)

P1 water pressure sensor

16 Diagram showing various parts of the boiler

boiler diagram figure 16

G A R C E1 K W

T1

T2

P1

1011

12 13

21

8

14

45

3 T5

6

7

18

T3

15

9

17

E


1 heat exchanger2 ignition unit3 fan unit4 air inlet damper5 gas block6 safety valve7 automatic air vent8 ceramic burner bricks9 cylinder HWS (S-HR-T)10 operating panel

boiler description figure 17

4 2 1 3 175 16 7 6 T3 918

T2 C 11 E1 K13 14 15WG 19 A 10 RT5

P1 T1

11 Control Tower12 water filter return central heating13 three-way valve (S-HR-T)14 circulation pump15 thermostatic mixing valve (S-HR-T)16 flue gas discharge17 combustion air supply18 air unit19 type plate

E


1 ATAG Blauwe Engel S-HR boiler2 expansion vessel3 outside sensor ARV1215U4 drain points5 ATAG room thermostat

17 Example diagrams for connecting the boiler

17.1 Radiator installation without thermostat valves

connecting of the boiler to a radiator installation without thermostat valves figure 18

1

2

3

4

5


1 ATAG Blauwe Engel S-HR boiler2 expansion vessel3 outside sensor ARV1215U4 drain points5 ATAG room thermostat6 by-pass

trv thermostatic radiator valve

17.2 radiator installation with thermostat valves only

connecting of the boiler to a radiator installation with thermostat valves only figure 19

1

2

3

4

5

6

trv trv


18 Error indicationWhen detected, errors are indicated on the display. Some, of a temporary nature, will not usually result in the boilerlocking out. Whilst the control system will try its utmost to prevent lockout, and may temporarily switch off the unit,any fault which could potentially damage the appliance will result in lockout. The following are examples of mes-sage display, which fall into two categories - i.e. Blocks and Errors.

Blocks with a number in the last 2 positions.

Block 01:External safety contact cut out

Block 11:Maximum T of flow and return sensor in central heating has repeatedly been exceeded. During theblock normal operation of the hot water supply is possible. The pump continues to operate at minimumcapacity during the block.

Block 12:Maximum T of flow and return sensor in domestic hot water has repeatedly been exceeded. Duringthe block normal operation of the central heating installation is possible. During the block the pumpcontinues to operate at minimum capacity.

Block 60:Incorrect parameter setting of the minimum or maximum power.

Block 67:A T has been detected between flow and return sensor whereas the burner is not in operation. Afterthe T has disappeared the block will disappear.

Block 80:Maximum flue gas temperature has been exceeded (if present). The block will not be cancelled untilthe flue gas temperature has arrived below the temperature.

Block 81:The flue gas sensor is not connected although it has been connected to the control. The burner is

blocked until the flue gas sensor is reconnected.Block 82:

The flue gas sensor has short-circuited, heat requirement blocked and pump capacity at minimum.Block 85:

The control has not detected a water flow. The venting cycle is started. If during this cycle water flowis detected, the venting cycle is ended and the burner is released.

Error with a number in the last two positions.

Error 00: poor flame-formingError 01: short-circuit of 24 volt circuitError 02: no flame-formingError 03: temperature in airbox to highError 04: adjustment or error for voltage interruptionError 05: fault control unitError 12: fuse 24 volt/3AT faultyError 19: maximum return temperature exceededError 28: number of revolutions not reported back from fan


19 CE-Certificate United Kingdom


20 CE-Certificate Ireland

This renewed publication cancels all previous installation instructions.The company reserves the right to change the specifications and dimensions without prior notice

E. & O. E.

centralheatingprogr. on / off

hot waterprogr.on / off

pump progr.on / off

Reset key

Step key

display

Explanations of symbols and signs on theControl Tower display.

012

No heat requirement

Ventilation phase

Ignition phase

Burner active on central heating

Burner active on hot water

Fan check

Burner off when room thermostat is demanding

Pump overrun phase for central heating

Pump overrun phase for hot water

Burner off because of to high flow water temperature

Automatic venting programme

3456789A

Water pressure is to low (<1,0 bar), flashing FILL will be alteredwith indication of water pressure, boiler power of 50% ispossible. The installation needs to be topped up.

Water pressure is to low (<0,7 bar), FILL indication remainscontinuously visible, the boiler is taken out of operation. Theinstallation needs to be topped up.

Water pressure is to high (>2,8 bar), HIGH indication remainscontinuously visible, the boiler is taken out of operation. Theinstallation pressure needs to be decreased by draining water.

Operation indication (in the first display position)

Mode key ~ Selecting chapters

Step key ~ Scrolling in a chapter

Reset key ~ Unlocking the boiler in case of error

Mode key

Distributor for UKATAG Heating UK Ltd.Unit M1Hilton Business ParkEast WitteringWest Sussex PO20 8RL

Phone: 01243 673888Fax: 01243 673444

Email: [email protected]: www.atagheating.co.uk

Distributor for IrelandTotal Energy Management Ltd.Unit 9, Ballybritt Industrial Estate,Monivea Road,Galway, Ireland.

Tel.: (091) 769174Fax.: (091) 769485

Email: [email protected]:www.tem.ie

Documents

INSTALLATION & SERVICING INSTRUCTIONS