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1. PP PP A PP MW PP MW PP MW Boiler Class C Permitted only when the air intake and the flue gas outlet are in the same pressure area Room sealed system Open boiler en roomsealed system figure 8 The appliance connection diameter is 80 125 mm to which the flue gas outlet and air supply system can be fitted with or without elbow pieces The maximum permissible pipe length is set out in Table 5 Itis also possible to use a parallel pipe connection of 2x 80mm In this case a seperate cover 125mm should be ordered We advise to build a simple flue gas system and air supply system out of table 6 For further information about the available components of the flue gas and air supply system we recommend you consult the Monopass Flue systems The STREBEL flue gas system is meant and designed solely the use on STREBEL central heating boilers adjusted for Nat gas or LPG The maximum flue gas temperatures are below 70 C full load 80 60 C The proper operation can be influenced harmfully 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 Theflue gas systems described in this documentare solely suitedfor STREBEL central heating boilers of the STREBEL boiler range For this purpose th
2. nennen nennen rennen 19 Electrical connection iiec eiie tei dde dig ue eek e oic e dde repe oe Dre 20 Boller CONTOS PS 22 9 1 Explanation of the function keys a 23 Filling and venting the boiler and installation u 24 10 1 Hot Water supply e aee cte aq er ete ctm ta ete c REDE UE IB 24 Commissioning the Boiler mrcine dna edi Eo a d D Rc de ane 25 11 1 Gentral heatingiSyStem suce eet ne chet ot ge Ed better edes 25 11 2 Hot water supply 3 2 enit oe a ga abii ea 25 11 3 Adjustments elle ce ccce cepe er ee dle ee Hec e eee 26 11 4 Activating factory settings green key function 28 Isolating the boiler ciiin nre ne Ine cre te tiere Lone E YR o dee Earn 29 COMMISSIONING 3 5 EP en tee RP E ei Uu ete bor eta Fe eth PU 29 13 1 Checking for contamination eene nennen nennen nnns nnns 29 13 2 Checking of the zero pressure control a 30 13 3 SGHECKING th CO sassa 31 Mane se L u ERE 32 14 1 Frequency of maintenancoe nennen nenne seines nnne nennen nens 32 14 2 Maintenance nennen nennen nnne nens 33 14 9 Warranty usya a eene e eg et ope e
3. wall dimensions in mm Boiler type m oou 2 O O Z r c ro m U Height Width Depth Left side flue gas exhaust Centre to centre flue gas exhaust and supply back flue gas exhaust Left side gas pipe Left side flow pipe Left side return pipe Left side condensate pipe Left side expansion pipe Left side cold water pipe Left side hot water pipe Pipe length of g Pipe length of c Pipe length of f r e d k and w Back Centre of pipe c Back Centre of pipe g Back Centre of pipe f r e d k and w dimensions SHQ25S SHQ38S 680 500 385 335 120 270 65 185 285 370 18 50 60 25 40 50 SHQSIS SHQ60S 680 660 385 495 120 270 65 185 445 530 18 50 60 25 40 50 SHQ25C SHQ38C 680 840 385 335 120 270 65 185 285 370 430 725 795 18 50 60 25 40 50 figure 1 SHQSIC 680 1000 385 495 120 270 65 185 445 530 590 885 955 18 50 60 25 40 50 talel 1 boiler connections figure 2 i 5S SHQ5IS SHQ25C HOSIC Boiler type SHO38S SHQ60S SHQ38C Gas pipe 9 72 female 3A female 72 female female Return pipe r Expansion pipe e Hot water pipe w connection diameters
4. a zov zov zav zov 100 ma oma C B D installation example figure 17 A Boiler AO Connection terminal Strebel Q boiler A4 Outside sensor ARV12 A9 MadQzone controller 23BC A10 Connection terminal MadQ built in B Cylinder B3 Cylinder sensor B5 Three way valve cylinder C Direct zone C6 Pump direct zone D Mixing zone D2 Flow sensor mixing zone D5 Three way valve mixing zone 230V D6 Pump mixing zone See also the installation manual MadQ Zone controller 18 Error indication A detected error is indicated on the display by means of blocking or error messages A distinction should be made between these two messages due tothe factthat blocking can be of atemporary nature however error messages are fixed lockings The control will try its utmost to prevent locking and will temporarily switch off the unit by blocking it Hereunder is a list of some messages Blocks with a number in the last 2 positions 01 M D Ee E r ru oO Lr oO Dr oO oD p r r pr r c Co Co co m m um ER 01 External safety contact cut off Block 11 Maximum AT of flow and return sensor in central heating has repeatedly been exceeded During the block normal operation of the hot water supply is possible The pump continues to operate at minimum capacity during the block Block 12 Maximum AT of flow and return sensor in domestic hot water has repeatedly been exceeded Durin
5. Press the MODE key for 5 seconds The diplay will show COGE followed by an arbitrary number Select by means of the or the key the code C123 Press the Store key to confirm the code code blinks 1 x Press the MODE key until SERV is shown Press the STEP key until 2 is shown alternately 2 and OFF will be shown Turnthe upper measuring nipple on the gas valve open fig 12 Connectthe hose ofthe digital pressure gauge to the upper measuring nipple of the gas valve Press the key until the maximum value is achieved The fan will function to its maximum revolutions burner stays off Measure the under pressure and write down this value Atthe next commissioning visitthis value may drop 20 of its original value on the moment of intallation When this value is dropped more than 2096 the boiler needs maintanance Press the key until OFF is shown keep key pressed With this the procedure is finished 13 2 Checking of the zero pressure control Check point contamination figure 13 Adjustment zero pressure figure 14 The zero pressure control is set at the factory To measure this value you need a difference pressure gauge with a range of 0 2 to 0 8 mbar Follow the next procedure Press the MODE key for 5 seconds The diplay will show COGE followed by an arbitrary number Select by means of the or the key the code C123 Press t
6. The second way is atechnical read out In normalsituations the following will be shown onthe left the status in which the boiler is active onthe right the flow temperature the water pressure in the installation When a message error or blocking code is necessary this will be shown instead of the technical read out To switch over from the Good state to the Technical read out and vice versa Press 5 sec on the STEP key Whenthe system has beenfilled the automatic venting program starts when a programme has been selected by pressing the key for Central Heating DHW or pump programme 4 of The programme takes 17 minutes and stops automatically After this the unit will function normally See also Filling and venting the boiler and installation On acall for heating or hot water the control system will select the required water control temperature This water temperature is called the T set value On a call for central heating the boiler ignites first at low input The input is then changed slowly to match the load required The boiler operates in this way to avoid excessive water noises and temperature overshoot On a call for hot water supply the T set value of central heating return watertemperature is monitored Depending onthe amountof sanitary water which is withdrawn from the DHW cylinder the central heating return water temperature from which the input is adjusted will vary Installation Ins
7. 5 pol SiuM aniq lyr pela x aniq ze UMOIG uonesiuo d AO Z2 AVE o uej pon 9 5 TA WMd dung Q vo o zo 5 5 9 Boiler controls The boiler is provided with a fully automatic microprocessor control called CMS Control Management System This control simplifies operation by undertaking all major control functions Initially when power to the unit is switched on it will remain on standby There is no indication Led on untill one ofthe programme keysis pressed The control panel display will show the relevant state When the installation is empty the display will show FILL The various parameters can be called up in two ways The Good state or standard read out Technical read out The first way shows a simple display read out Theboiler in operation willalways show Good When a message is necessary this will be shown instead of Good
8. C min gear differential 5 C under floor heating with radiators as additional heating T max flow 60 C K factor heating line 1 5 gradient 4 C min gear differential 4 C full under floor heating T max flow 50 C K factor heating line 1 0 gradient 3 C min gear differential 3 C maximum power CH in kW control principal with on off thermostat 100 on off thermostat 100 on off weather dependant heating line K factor see also heating line graph heating line exponent see also heating line graph heating line climate zone see also heating line graph fine adjustment heating line day temperature fine adjustment heating line night temperature gradient speed booster after night reduction no yes frost safety temperature switch off temperature of additional cylinder with Q boiler type of three way valve VC 2010 VC 8010 VC 8610 VC 6940 modulating maximum power DHW in kW Not applicable minimum pump capacity Value in parenthesis for Q60S maximum pump capacity CH address setting interface Spare Bus thermostat BrainQ Smart boiler 1 8 in cascade Range 20 90 C 01 02 03 04 min max 00 01 0 2 3 5 1 1 1 4 20 0 5 until 5 C 5 until 5 C 0 15 00 01 20 until 10 C 40 80 C 00 01 min max 00 01 25 100 96 40 100 96 01 00 00 07 Information chapter INFO 1 C 4 C 5 C 7 C 8 C 16 17 kW 18 kW 20 21 GJ 22 GJ 23 GJ 24 hour 25 hou
9. The working pressure of the installation should be between 1 5 and 1 7 bar when the installation is cold It can take a while before all air has disappeared from a filled installation A Especially in the first week noises may be heard which indicate the presence of air The automatic air vent in the boiler will make this air disappear which means the water pressure can reduce during this period and therefore top ping up with water will have to be done 10 1 Hot water supply Apply the water pipe pressure to the cylinder open main valve and or stop valve of the safety group Vent the cylinder and the hot water installation by opening a hot water tap Leave the tap open for as long as required until all air has disappeared from the cylinder and the pipes and only water is flowing from the tap ol Installation Instructions Strebel Q boiler range X Installation Instructions Strebel Q boiler range 11 Commissioning the boiler Before the boiler is fired ensure thatthe boiler and the system are well vented and free of air Purge the gas line between the gas meter and the boiler and carry out a gas soundness test as specified in the current Gas Safety Regulations The boiler does not require adjustment of the burner pressure and air quantity because itis self adjusting and is factory set at the correct value 11 1 Central Heating system Provided there is a heat requirement from the thermostat or control the central heating programme
10. and also be in accordance with the relevant and current editions of the British Standards The STREBEL S HQ boileris a certified appliance and mustnotbe modified or installed in any way contrary to this Installation Manual Manufacturers instructions must not be taken in any way as overriding statutory obligations The STREBEL S HQ is a central heating unit with an optional integrated hot water function These units must be connected according to these instructions and all installation norms in respect of the part of the unit to be connected Observe the following rules of safety All work on the unit must take place in a dry environment STREBEL units may never be in operation without their housing except in connection with maintenance or adjustments see Chapter 13 and 14 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 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 or adjustments are needed Theunit must be able to function during these activities for this reason the unit s supply voltage gas pressure and water pressure must be maintained Ensure that these is not a source of potential danger during these activities Following maintenance or other a
11. gas system maximum noted length distance between boiler and roof terminal B When using bends the noted value behind every bend should be deducted from the maximum straight length Pipes with 60 100 diameter are only permitted on wall terminals in combination with STREBEL boilers untill 25kW Two pipe flue system chimney lining A A 980mm inm 100 inm 16 25 kW Maximum straight lenth 80 31 Maximumstraightlenth 00 40 87 bend resistance length 1 5 ker bed esl nahh 105 bend resistance 05 Maximum straight lenth 80 18 Maximum straight lenth 100 39 87 bend resistance length 5 bend resistance lengh 708 5 bend resistence ergh 99 Maximum straight lenth 80 6 Maximumstraightlenth 100 18 o 5 T 260 100mm 5 bend resistance length 0 8 45 bend resistance length 0 9 Concentric flue system B B B in m 080 125 i 87 bend resistance length bend resistance length 87 bend resistance length 2 Maximum straight lenth 60 100 Maximum straight lenth 80 125 31 Maximum straight lenth 100 150 8 26 38 kW 39 60 kW 7 45 bend resistance length 1 945 bend resistance length 1 1 45 bend resistance length Maximum straight lenth 80 125 6 Maximum straight lenth 100 150 2 aximum straight lenth 80 125 13 Maximum straight lenth 100 150 i 5 bend resistance length 1 1 45 bend r
12. installation water are only permitted in consultation with the country distributor When using more than one boiler in an installation please refer to the cascade installation instructions Installation Instructions Strebel Q boiler range no Installation Instructions Strebel Q boiler range 6 2 Expansion vessel Thecentral heating system mustbe provided with an expansion vessel The expansion vessel which is used should be geared to the water content of the installation The pre charge pressure depends onthe installation height above the mounted expansion vessel See table 4 installation height above pre charge pressure the expansion vessel of the expansion vessel 5m 0 5 bar 10m 1 0 bar 15m 1 5 bar choice of expansion vessel table 4 All Combi boilers are provided with an expansion vessel connection This pipe is connected with the three way valve andboiler pump This preventthe expanding water during hot water production is being closed off from the expansion vessel when the thermostatic radiator valves are fully closed Asecond expansion vessel in the installation is not a problem In connection with correct functioning of the boiler it is necessary for the expansion vessel to be connected to the expansion vessel pipe of the boiler The Solo boilers are not provided with an expansion vessel connection When one of these Solo boilers is combined with a cylinder then one has to take into account that the
13. pipe connections for expansion vessel module AEMO209U ALEO004U side view of the module with boiler dimensions in mm figure 5 660 480 A v 105 Y di front view of the module with boiler dimensions in mm figure 6 Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range ok Underfloor heating system plastic pipes Whenconnecting or using an underfloor 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 underfloor 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 underfloor heating pipes Gas connection The appliance pipe is fitted with an internal thread into which the tail piece of the gas tap can be screwed The gas supply must comply to the current Gas Safety Regulations The connection to the appliance must include a suitable method of disconnection and a gas control cock must be installed adjacent
14. that no condensation water is able to accumulate in the outlet system The chances of icicles forming on the roof outlet is minimised by causing the condensation water to run back towards the appliance In the case of horizontal outlets the inlet system should be fitted on an incline sloping down towards the outside to prevent rainwater from coming in The appliance produces a white wisp of condensation plumeing This wisp of condensation is harmless but can be unattractive particularly in the case of outlets in outside walls 6 7 1 Dimensioning of the flue gas and air intake duct Example A 25kW with a concentric flue gas system 280 125mm has according to the table a maximum flue straight length of 31m In the system thatis going to be putin there are 2 x 45 bends so the maximum flue gas length is 40 2x 1 1 37 8 meters The flue diameter is determined by the total length of the run including for the connection pipe elbows fittings and terminal covers etc and the type and number of boilers installed into the system An undersized flue pipe can lead to disorders Look at table 1 for the choice of the system and the correct diameter The table below shows the maximum flue lengths with the different boiler outputs A longer flue gas length can be achieved by increasing the diameter to g 100mm Explanation table 1 Two pipe flue gas system maximum noted length distance between boiler and roof terminal A Concentric flue
15. the 4 chapters i e PARA Press once or more briefly on the STEP key to select a Parameter parameter visible on the left value on the right Alter the value if necessary possible by means of the or the key Press briefly on the STORE key to confirm the alteration When you have to change more values repeat from step 5 Press once or more on the MODE key until StBY or Good is shown After a few seconds the text StBY will be replaced by the technical read out or Good state Depending from the position the acces code is keyed in When you want to return from an arbitrary position to the original read out press once or more on the MODE key until StBY is shown When during 20 minutes no single key is used the display will return automatically to its original read out Good state or technical read out N Installation Instructions Strebel Q boiler range gt Installation Instructions Strebel Q boiler range Parameter chapter PARA 1 85 C 2 01 3 max 4 00 5E 2 3 6 1 4 7 10 10 0 C 11 0 C 14 5 o5 0 23 3 C 31 63 C 36 0 43 max 45 0 48 25 50 49 100 89 00 Factory Description maximum flow temperature CH type of CH installation radiators air heating convectors T max flow 85 C K factor heating line 2 3 gradient 5 C min gear differential 6 C radiators with large surface areas or underfloor heating as additional heating T max flow 70 C K factor heating line 1 8 gradient 5
16. thermostatic radiator valves MAMA o 1213 4 5 6 7 8 10 11 12 13 14 15 16 17 SE 22 23 24 25 26 27 9 N cist TTE A B 24 V 230 V 230 V 230 V 230 V 100 mA installation example figure 16 A Boiler AO Connection terminal Strebel Q boiler A1 BrainQ thermostat RSC A4 Outside sensor ARV12 tra Thermostatic radiator valve BP By pass Use alway a by pass in combination with thermostatic radiator valves s Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 17 2 Radiator installation with underfloor heating zone D C A B A 4 3 4 4 2 2 2x2 dr d om ma can cn cn cca CES c conc 1 2 3 4 5 6 71819 Toni 12 13 14151617 EEEEESEITI22 23 2425 26 27 ram an pamm mgen pan an arn a LIN SIEEN RS S F AO TN LETN E AIB 24v 18 19 28 1 1 29 A B 30 1 CD ED o C2
17. walled pipe welded or threaded When removing the plastic sealing caps from the pipes contaminated testing N water can be released The boiler has a self adjusting and self protecting control system for the load and the pump capacity By this means the temperature difference between the flow and return water is checked Table 3 shows the water displacement which supplies the circulation pump at certain installation resistance Boiler type pump type water flow rate permissible installation resistance Vh kPa UPER l min mbar Q25C 20 60 16 2 972 29 290 Combi Q38C 20 70 24 6 1478 20 200 Q51C 20 70 30 1 1803 Q25S 20 60 9 7 583 47 470 Q25S 20 60 16 2 972 32 320 Solo Q38S 20 70 24 6 1478 22 220 Q51S 20 70 30 1 1803 Q60S 20 70 38 9 2333 Installation resistance table 3 A low velocity header must be connected to the Q51C Q51S and Q60S to prevent flow problems over the boiler STREBEL supplies the AA1OVO9U Low velocity header for 1 boiler This can be A connected directly under the boiler on the flow and return pipe If the installation resistance is higher than the stated value the pump will rotate at maximum pump capacity and the load will be adjusted until an acceptable temperature difference between flow and return water has been obtained If after this the temperature difference remains to much then the boiler will switch itself off and wait until an acceptable temperature ha
18. IN expansion vessel should be connected between the three way valve and the boiler circulation pump 6 2 Expansion vessel module be dismantled expansion vessel module figure 4 The STREBEL 0255 and Q38S boilers can be provided with an expansion vessel module By this means the external expansion vessel is not required This expansion vessel module is placed behind the STREBEL S HQ boiler by which means the expansion vesselis notnoticeable The contentofthetwo expansion vessels is 20 litres The pre charge pressure is 1 bar The expansion vessel module can be supplied with the necessary pipes to connect with the STREBEL S HQ boiler The connecting pipes for the installation correspond with those of the boiler and have the same centre to centre distance to the wall When checking the expansion vessels these are accessible via the left right and upper sides From these sides the tanks are also removable and the boiler does not have to The space which is required for mounting the expansion vessel module corresponds withthe required space for mounting an STREBEL S HQ boiler They included template and mounting strip for the boiler which can be used for the expansion vessel module The boiler is fitted on to this after the expansion vessel module has been mounted The necessary mounting strip for the boiler is present on the module Article numbers the expansion vessel module without pipe connections
19. Installation Instructions o HQ boiler range 8G 51 41 00 02 06 062010 Changes res N Installation Instructions Strebel Q boiler range Explanations of symbols and signs on the Control Tower display Operation indication in the first display position by technical read out display No heat requirement l Ventilation phase 2 Ignition phase 3 Burner active on central heating H Burner active on hot water 5 Fancheck 5 Burner off when room thermostat is demanding Pump overrun phase for central heating 8 Pump overrun phase for hot water 9 Burner off because of to high flow water temperature R Automatic venting programme Central heating Step key Domestic hot water DHW Pump programme Mode key Reset key From Good read out to Technical read out and vice versa Press 5 sec on the STEP key SL FILL HIGH Water pressure is to low 0 7 bar FILL Water pressure is to low 1 0 bar Water pressure is to high 22 8 bar if indication remains continuously visible flashing FILL will alternate with indication HIGH indication remains continuously the boiler is taken out of operation The of water pressure boiler power of 50 is visible the boiler is taken out of operation installation needs to be topped up possible The installation needs to be topped up The installation pressure needs to be decreased by draining wate
20. ctivities always check the installation of all parts through which gas flows using leak search spray Following maintenance or other activities always replace the housing and secure it with the screw behind the door at the front of the casing The following safety symbols may be encountered in these installation instructions and on the unit This symbol indicates that the unit must be stored away from frost This symbol indicates that the packaging and or contents can be damaged as a result of insufficient care taken during transport This symbol indicates that whilst still in its packaging the unit must be protected from weather conditions during transport and storage KEY symbol This symbol indicates that assembly or dismantling must be carried out ATTENTION symbol This symbol indicates that extra attention must be paid in connection with a particular operation Useful tip or advice Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 3 Scope of the supply The boiler is supplied ready for use The supply kit is composed as follows Boiler with casing Template on the package wrapper Automatic vent inside the boiler Installation instructions Safety valve inside the boiler Operating manual Suspension bracket Warranty card Draining valve with T piece Benchmark logbook Fixing material consisting of plugs and Screws 4 Descrip
21. e replaced with an STREBEL mains power supply cable item No 54407300 The STREBEL room thermostat and controls must be connected to their allocated connections All othertypes or makes of room thermostats or controls which are used must have a Volt free contact For more detailed questions regarding the components which are not supplied the country distributor should be contacted Connection terminalQ 230 V 230 V 230 V 230 V n Calorifier connection Outside Brain Room External 24 V Power Supply External Pump EA g three way valve DHW sensor Smart therm safety 100 mA 5 ny lt nic cH N Sensor On off contact 105 Ef 13 14 15 16 17 18 19 20 21 24 25 26 27 gt gt lt 5 XE ce gt 2 reS S e oc aa o o ot c c a o 5 9 g goe 2 o o0 22 E 5 SED o 82g o gt gt gt gt CEED c Q E gt o c gt x S c CO x CO x G gt 5 re o Eo NO NO e gt o e Lu AE Connection terminal figure 10 N Installation Instructions Strebel Q boiler range Aejds
22. e 33 Technical specifications nennen eintreten nennen ntes 34 Parts ofihe bolleryu Dra wau LED 35 Installation examples ti etre ehe eei est teen ves reo et rip i v been tc ec fed 36 17 1 Radiator installation without thermostatic radiator 36 17 2 Radiator installation with underfloor heating Zone 37 EOF NICANO rs u HEIDE 38 Declaration of conformity nr 39 The appliance should only be installed by a Competent Gas Installer Work on the boiler must be carried out by a competent person Ref Gas Safety Installation and Use using correctly calibrated instruments with current test certification amp Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 1 Introduction These instructions describe the functioning installation use and primary maintenance of STREBEL central heating units for the United Kingdom and Ireland Where necessary the different regulations for each country are separately described These instructions are intended for the use by Corgi registered installers or registered Bord Gais installers in connection with the installation and putting into operation of STREBEL units It is advisable to read these instructions thoroughly well in advance of installation Separate instructions for use are supplied with the unit
23. e CE Certificate has been supplemented under the Gastec nr 0063BQ3021 0063AS3538 and 0063AUS31 10 The flue gas system should be built up using only STREBEL program products Combinations with other brands or systems are without written permission from STREBEL Heating not permitted Horizontal flue system should always be installed sloping towards the boiler in order to avoid condensate lying in the flue system The minimum gradient is 50mm Mtr With the condensate running back to the boiler the risk of ice forming at the terminal is reduced The terminal should be located where dispersal of combustion products is not impeded and with due regard for the damage or discolouration that might occur to building products in the vicinity see fig 9 terminal position for fan assisted boiler JU id fa N A wok an open window or other opening UE 300 2d B below gutters soil pipes or drain pipes mm 75 C below eaves mm 200 J F D below balconies car port roof mm 200 Es HI E from vertical drain pipes and soil pipes mm 75 G F from internal or external corners mm 300 G above ground or below balcony level mm 300 figure 9 H from a surface facing a terminal mm 600 from a terminal facing a terminal mm 1200 DD EE K vertically from a terminal on the same wall mm 1500 L horizontally from a terminal on the same wall mm 300 M horizontally
24. esistance length Dimensions flue gas system and air supply system Table 5 o Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 7 External hot water cylinders Depending of the comfort preferences different external hot water cylinders can be connected to the boiler The choice of the cylinder depends on the coil output The coil output must comply with the boiler output A cylinder which is used in combination with aQ 51S of Q 60S should have a minimal capacity of 40 kW respectively 45kW minimal 28mm coil The maximal permitted pressure drop is respectively 20 and 10 kPa at a flow of respectively 1417 and 1587 I h See installation example 16 2 on page 37 for the hydraulic connection 8 Electrical connection The appliance complies with the CE Machinery Directive 89 392 EEC The EC Low Voltage Directive 72 23 EEC and the EC EMC Directive 89 336 EEC A 230V 50Hz mains electrical supply is required fused externally at 5A The installation must continue to comply with 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 b
25. for users of STREBEL central heating units STREBEL is not liable for the consequences of mistakes or shortcomings which have found their way into the installation instructions or user s manual Further STREBEL reserves the right to alter its products without prior notification A When delivering the unit give the customer clear instructions concerning its use present the customer with the user s manual and card Each unit is fitted with an identification plate Consult the details on this plate to verify whether the unit is compliant with its intended location e g gas type power source and exhaust classification Relevant Installation Service and User manuals BrainQ Digital room thermostat MadQ Cascade Zone controller 2 Regulations The following regulations apply to installation of STREBEL central heating units Legislation and Regulations Gas Safety Installation and Use All gas appliances must by law be installed by a competent person eg Members of CORGI and in accordance with the current Gas Safety Regulation Failure to install appliance correctly could lead to prosecution In addition to the above regulations this appliance must be installed in compliance with the current IEE Regulations the Building Standards Scotland Consolidation Regulations Regulations and bye laws of the Local Water Authority and the Current Health and Safety Regulation The current Electricity at Work Regulation must be complied with
26. from vertical terminal to a wall mm 300 Dimensions table 6 T Installation Instructions Strebel Q boiler range gt gt p co Installation Instructions Strebel Q boiler range In certain weather conditions condensation may also accumulate on the outside of the airinletpipe Such conditions mustbe consideredandwhere necessaryinsulation ofthe inlet pipe may be required In cold and or humid weather water vapour may condense on leaving the flue terminal The effect of such plumeing must be considered The terminal must not be located in a place where it is likely to cause a nuisance For protection of combustibles referto IS 813 section 9 10 1 where the terminal is less than 2m 6 6ft above a pavement or platform to which people have access including any balcony or flat roof the terminal must be protected by a guard of durable material A suitable guard is available from the country distributor Where a terminal is fitted 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 If the boiler is to be located under stairs a smoke alarm meeting the requirements of 1 5 409 or equivalent must be fitted The flue must be terminated in a place not likely to cause a nuisance For horizontal sections the outlet system should always be fitted on an incline 50 mm m sloping down towards the appliance so
27. g the block normal operation of the central heating installation is possible During the block the pump continues to operate at minimum capacity Block 60 Incorrect parameter setting of the minimum or maximum power Block 67 A AT has been detected between flow and return sensor whereas the burner is not in operation After the AT has disappeared the block will disappear Block 80 Maximum flue gas temperature has been exceeded if present The block will not be cancelled until the flue gas temperature has arrived below the temperature Block 81 The flue gas sensor is not connected although it was 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 flow is detected the venting cycle is ended and the burner is released Error with a number in the last two positions Error 00 Poor flame forming Error 01 short circuit of 24 volt circuit Error 02 flame forming E 04 Error 04 adjustment or error for voltage interruption Error 05 adjustment E 10 Error 12 fuse 24 volt 3AT faulty Error 18 maximum flow temperature exceeded E 19 Error 19 maximum return temperature exceeded Error 28 number of revolutions not reported back from fan Error 69 or incorrect display E
28. h and vacuum cleaner If the air box contains a lot of dirt it is plausible that the fan itself is dirty as well To clean this the fan has to be removed from the hood and the venturi Clean the fan with a soft brush and a vacuum cleaner Replace the gasket and ensure that all gaskets of the fan parts are mounted correctly Heat exchanger check the heat exchanger for contamination Clean this if necessary with a soft brush and a vacuum cleaner Prevent dirt falling down into the heat exchanger Flushing the heat exchanger from the top down is not permitted Refitting of the components is done in reverse order Make sure that during refitting the clamping rods they are put in the right A position They should be turned vertical e Installation Instructions Strebel Q boiler range Kd Installation Instructions Strebel Q boiler range Ignition electrode The replacement of the electrode is only necessary when the electrode is worn off This can be checked by measuring the ionisation current The minimum ionisation current has to be higher the 4 on full load If the viewing glass is damaged the complete electrode must be replaced Replacement goes as follows remove the electrical connections of the electrode press the clips on both sides of the electrode to both sides and remove the complete electrode remove and replace the gasket Refitting of the components is done in reverse order Siphon and condensate tray first
29. he Store key to confirm the code code blinks 1 x Press the MODE key until SERV is shown Press the STEP key once until 1 is shown alternately 1 and OFF will be shown Turn the upper measuring nipple on the gas valve open fig 13 Connectthe hose ofthe digital pressure gauge to the upper measuring nipple of the gas valve Press the key until the minimum value is achieved The fan will function to its minimum revolutions burner is active Measure the negative pressure Value should be 0 to 4Pa 0 to 0 04 mbar Ifthe zero pressure deviates too much Remove black cover of the gas valve Remove cap with Torx key fig 14 Turn slightly the Torx screw behind the cap Turn left is positive pressure deviation Turn right is negative pressure deviation Ending this procedure is done by pressing the Reset key Proceed by checking the CO2 value and correct it if necessary Installation Instructions Strebel Q boiler range 193 Checkingthe CO A adjustment screw CO figure 16 m Installation Instructions Strebel Q boiler range The CO percentage is factory set This has to be checked at commissioning maintance and faults This can be checked by means of the following procedure Remove the black cover of the gas valve by unscrewing the sealed screw Putthe boiler into operation and take care that it can deliver its heat Tip If there is no demand for hea
30. her information regarding to the BrainQ thermostat we refer to the BrainQ installation manual 11 4 flow water temperature in C 20 udo AAO ATE 1 ASS Q N o O OAT Sei an NF m e MEAE WS Ame im outside temperature in heating lin adjustments Parameter Step 6 and 7 graph 2 Activating factory settings green key function To activate the factory settings again please follow the next procedure Note all altered adjustments will be set back Select when necessary the technical read out Select with the MODE key chapter PARA Press the STORE key The word Copy will appear and the facory settings are active again Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 12 Isolating the boiler A In some situations it may be that the entire boiler must be switched off By switching off the three keys with the lamps for central heating hot water and pump programme mm 4 or x the boiler is switched off Leave the plug in the wall socket which means the circulation pump and the three way valve are activated once every 24 hours in order to prevent jamming In the event of frost danger it is advisable to drain the boiler and or the installation 13 Commissioning A A Work on the boiler must be carried out by a competent person Ref Gas Safety Installation and U
31. iq uodo 3uepise4 uou OJOS JO IquuoO MTM 2 07692A 20 OLOZOA 11 Josues uX eniq lo pol usap 61 10su s pas SHUA eBueio poi IZ 799 o o 21 10sues MHA eniq 4osues eunsseud D MOO Eoi euuw uum T gt uses6 Zo eniq O SED o poi ueejb yo uo 003 Gees pews po ave _ rewera uesa epimo Aoz E34 elelelelelele _ 91919 IM 4 i uous eee amp a 10 2 ej e I T t 21 10sues UMOJq 8 enig ajdind x a E e 0 i e TIN iue d ng zem onen Kemaon 2022 9508 Hh
32. l Heating programme key function Hot Water programme key function PC programme key store function which means that by means of this key a modified setting is confirmed Step key scrolling in a data chapter 10 Filling and venting the boiler and installation The central heating installation needs to be filled with potable water For filling or topping up the installation you use the filling loop according to the following procedure Switch on the power supply The diplay will show FILL All functions off heating DHW and pump Push briefly the STEP button P x x water pressure in bar Open the filling loop Indication on display increases Fill up slowly to 1 5 to 1 7 bar STOP appears on the display Close the filling loop ON O a A N De aerate the complete installation start at the lowest point 10 Check the water pressure and if necessary top it up 11 Close the filling loop 12 Activate the functions in use heating fmm DHW 57 and or pumps 13 If A xx appears on the display wait for 17 minutes 14 Check the waterpressure and if necessary top it up to 1 5 to 1 7 bar 15 Close the filling loop 16 Press the STEP button 17 Be sure that the filling loop is closed 18 After the automatic de aeration programm A xx is finished the boiler will return to the Good state or Technical read out Check the water pressure regularly and top up the installation when necessary
33. nsate mustbe drained otherwise the boiler will not function The collecting condensation drain pipe should be connected to the drain by means of an open connection By this means the possibility of drain gases ending up in the boiler is prevented The drain connection should have a minimum diameter of 32mm Connect the condensation drain pipe according to the actual regulations The following components are connected to the collective condensation drain pipe Condensation discharge Safety valve 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 300 ml of water o Installation Instructions Strebel Q boiler range oy Installation Instructions Strebel Q boiler range 6 7 Flue gasexhaust system andair supply system The flue gas exhaust system and air supply system consists of Flue gas pipe Air supply pipe Roof or wall terminal The flue gas exhaust system and air supply system must comply with The flue gas outlet and air supply installation must comply with the current regulation requirements IG UP 10 and BS 715 A All flue gas parts which are outside the fire resistant cover need to be in stainless steel SS 7 Air filter Open boiler BoilerClass B Free exhaust area
34. o operation and check the CO see page 32 14 3 Warranty For warranty conditions we refer to the warranty card supplied with the boiler 15 Technical specifications STREBEL SHQ Solo Input Hs CH kW 25 38 51 25 38 51 60 Q InputHi CH kW 22 5 34 2 45 9 22 5 34 2 45 9 54 Input Hi DHW 31 5 Efficiency class according BED Efficiency according EN677 36 30 C part load Hi 109 7 109 1 109 3 109 7 109 1 109 3 109 3 Efficiency according EN677 5 80 60 C full load Hi 97 5 97 4 97 3 97 5 97 4 97 3 97 3 us kW 60 219 60 333 88 447 44 219 60 333 88 447 88 525 capacity 80 60 C kW 68 239 68 363 98 487 49 239 68 363 98 487 98 573 capacity 50 30 C Nox class EN483 5 CO 96 9 Flue gas temp CH 80 60 on full load 99 10 idi 92 70 0 Flue gas temp CH 31 50 30 on low load Gas consumption G20 CH DHW 3 2 38 at 1013 mbar 15 C m h 3 33 3 62 4 86 2 38 3 62 4 86 5 71 Electr power consumption max w 106 165 150 106 165 150 168 Electr power consumption stand by 10 Current V Hz 230 50 Degree of protection acc EN 60529 IPXOD Weight empty kg 79 79 89 50 53 64 64 Width mm 840 840 1000 500 500 660 660 Height mm 680 Depth mm 385 Water content CH 5 5 jf 35 5 7 7 Water content DHW 14 14 14 After run time pump CH min 15 After run time pump DHW min 1 1 1 Pus Water pressure min max bar 1 3 Pauw Wa
35. r OQ 10 11 12 13 14 15 17 18 19 Declaration of conformity nte re IEEE eig HERES CURED ENSE E GE SR HI s u sa 3 e kE Pe tbt p ette EC at dete on Ce te te tes 4 cete tota ue ce pectet 4 Scope of the Supp ree oo eei enn aa dede a ae ee v e a Du 6 Description of the boiler n n nsn 6 Mounting the eo ntt d a aee etu Hn e e M HERR 6 5 1 DIMENSIONS M tends 7 Connecting the boiler cece ce ceeseeececeeeeeeeeeeeeeaaeeeeeaaaeeeeaeeeeeeaaeeecaaaeeseaeeeeseaaeeesssaaeseneeeseaeeeseaes 9 6 1 Central heating system uuu n a ai salaam ua 9 06 2 Expansi rn vessel rt ER t eee Estee rn 11 6 2 1 Expansion vessel module U nennen rennen 12 6 3 Underfloor heating system plastic pipes 13 6 4 1 Gas e l eet eth e pa qa E 13 6 5 Hot water supply u a idee dde dene dk vue dr uaa d EN aaa du Y deere iy 13 6 6 Condensation drain pipe U aaa 14 6 7 Flue gas exhaust system and air supply 15 6 7 1 Dimensions of the flue gas and air intake duct sss 18 External hot water cylinders
36. r 26 hour 32 hour 37 hour 46 hour Value Description flow water temperature T1 return water temperature T2 DHW temperature T3 outside temperature T4 flue gas temperature T5 actual power in actual power in kW actual load in kW indication bus communication consumption total in GJ x 33 m3 consumption CH in GJ x 33 consumption DHW in GJ x 33 m3 total number of burner run hours number of burner run hours CH number of burner run hours DHW total number of hours counter total number of run hours pump CH and DHW within how many hours is service required Service chapter SERV Value OFF OFF OFF OFF N Description Range boiler in operation with burner function on OFF max fan adjustable and burner off OFF max pump adjustable with burner on OFF max showroom position ON active and OFF non active ON OFF Error chapter ERRO Value Description Err L Err 5 Last saved error until 5 last predecessing errors 1 error code 2 operation status boiler 3 C flow water temperature T1 4 C return water temperature T2 5 kW load 6 96 pump capacity Parameter Info Service and Error chapters Table 6 Most of the data in this table can be requested by the BrainQ Most of the adjustments which are stated in this table are unnecessary when in combination with the BrainQ thermostat and will be taken care of by the BrainQ itself and do not have to be adjusted For furt
37. remove the condensate cup Check this for pollution If there is no sign of strong pollution it is not necessary to clean the condense tray If there is a strong pollution in the cup it is necessary to remove and clean the condensate tray remove the inner siphon pipe which remains in the condensat tray checkthe O rings of the cup as well as those from the pipe and replace if necessary clean both part by flushing it with clean water grease the O rings again wit acid free O ring grease to make fitting easier ifthere is aleak atthe siphon cup or tray the complete siphon unit has to be replaced by S44516xx remove the plug from the flue gas sensor if present turnthe two short clamping rods 1 4 turn and remove them by pulling them forward Note the right turning direction red indicator lift the flue gas pipe out of the condensate tray press the condensate tray carefully downwards and remove it by pulling it forward replace the gasket between condensate tray and heat exchanger by a new one clean the condensate tray with water and a hard brush check the condensate tray on leaks Refitting is done in reverse order Note thate the gasket of the condensate tray seals completely Make sure that during refitting the clamping rods they are put in the right position They should be turned vertical Replace always all removed gaskets of dismanteled parts during the maintenance activities Put the boiler int
38. rror 80 maximum flue gas sensor temperature exceeded e Installation Instructions Strebel Q boiler range 19 Declaration of confirmity CE DECLARATION OF CONFORMITY Strebel Itd declare that the Boilers shown in this manual are in conformity with the EC directives as lited below Directive Used standards Gas Appliance Directive 90 396 EEC EN483 1999 Efficiency Directive 92 42 EEC EN677 1998 Low Voltage Directive 73 23 EN50165 1997 EMC Directive 89 336 EEC EN55014 1 2001 EN55014 2 1998 EN50165 1997 IEC61000 3 2 2000 IEC61000 3 3 1994 and that the products are in conformity with EC type examination certificate number E0430 as stated by KIWA Gastec Certification BV Apeldoorn The Netherlands e Signature Ful name P Kalverboer CEO Installation Instructions Strebel Q boiler range Original certification available on request to Strebel Ltd STREBEL STREBEL LTD Albany park industrial estate Frimley road Camberley Surrey GU15 2PL Telephone 01276 685422 Fax 01276 685405 E mail info strebel co uk Internet www strebel co uk renewed publication cancels all previous installation instructions The company reserves the right to change the specifications and dimensions without prior notice Th E amp O E
39. s arisen If an unacceptable temperature is detected then the control will repeatedly try to achieve water flow and if this does not work then the boiler will switch off Ifthe capacity ofthe boiler pump is insufficient an extra external pump can be installed in combination with a low velocity header in series with the boiler The electrical side of this external circulation pump can be connected in the Control Tower by which means this pump switches at the same times as the boiler pump The maximum absorbed current consumption of the external circulation pump may be 230 W 1 Amp The extra external pump must be selected according the installation resistance and required flow external installation pump with low velocity header figure 3 0 0 0 5 1 Q m h 1 5 2 2 5 3 pump index lines graph 1 As standard the boiler is provided with a water filter in the return pipe ofthe boiler With this possible contamination of the central heating water is prevented from ending up in the boiler The boiler is also provided with an internal safety valve set at 3 bar This is connected to the waste discharge together with the condensation discharge If all or a large part of the radiators are provided with thermostatic radiator valves it is advisable to use a pressure difference control bypass in order to prevent flow problems in the installation The boiler is designed to be used on sealed system only Additives in the
40. se using correctly calibrated instruments with current test certification To commission the boiler the casing has to be removed The casing is locked with a screw behind the door on the front and the top of the casing is hooked behind a locking edge After removing this screw the casing must be lifted at the bottom by which means it is released from the locking edge Then the casing can be removed forward The boiler settings such as burner pressure and adjustment of the air quantity are unnecessary due to the fact that the boiler operates with a so called zero pressure control This means the correct gas quantity is controlled by the suction operation of the fan The fine adjustment which is carried out at the factory is once only which means that adjusting of these values is unnecessary Only in case of replacing of the gas valve venturi and or fan the zero pressure and the CO2 adjustment has to be checked and if necessary adjusted at the right value Always check the installation of all parts through which gas flows using leak search spray 13 14 Checking for contamination Check point contaminatio figure 12 In order to be able to check the boiler for contamination in the following running years itis advisable to measure the maximum air displacement in the boiler when putting the boiler into operation This value can be different with each type of boiler In order to be able to measure this value follow the next procedure
41. t on CH turn the hot water tap completely open and measure the CO2 Press the MODE key for 5 seconds The diplay will show COGE followed by an arbitrary number Select by means of the or the key the code C123 Pressthe Store key to confirm the code code blinks 1 x Press the MODE key until SERV is shown Press the STEP key once until 1 is shown alternately 1 and OFF will be shown Calibrate the CO meter Place the lance of the CO meter into the check point see fig 15 Press the key until the maximum value in kW is achieved The boiler will burn on full load value on display in kW Check Table 7 for the correct CO percentage page 35 Letthe CO meter do its measuring procedure Adjust if necessary the adjustment screw to correct the CO value see fig 16 Ending the CO measuring procedure Press the key until OFF is shown keep key pressed With this the procedure has ended Replace the black cover on the gas valve and fix it with the screw 14 Maintenance Maintenance or changes to the unit may only carried by an authorised technician 141 Thefrequency of maintenance We advise to carry out an inspection overhaul to the boiler every year but at least after two years and an overhaul every four years depending from the running hours mentiond in the warranty conditions When doing this the circumstances of the boiler s location must be taken into account From
42. table 2 o Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range ok 6 Connecting the boiler Theboiler has the following connection pipes Thecentral heating pipes These can be connected to the installation by means of compression fittings Thegaspipe Itis provided with a female thread into which the tail piece of the gas valve can be screwed Thecondensation drain pipe It consists of an oval 24 mm plastic pipe The drain pipe can be connected to this by means of an open connection If the open connection is fitted in a different location then the pipe can be lengthened by 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 Only Combi boilers These consist of 15 mm copper pipe and can be connected to the installation by means of compression fittings It is recommended that isolation valves are fitted to all heating and hot water A connections to facilitate ease of future maintenace It is advisable to spray clean all of the unit s connecting pipes and or to spray clean blow clean the installation before connecting it to the unit 6 1 Central heating system Connect the central heating system according to the actual regulations The boiler pipes can be connected to the installation by means of compression fittings Reducers should be used for connecting to thick
43. ter pressure DHW max bar 8 Flow temperature max 85 20 60 20 70 20 70 20 60 20 70 20 70 20 70 Available pump height CH kPa 29 20 32 22 DHW flow at 38 C l min 13 4 16 6 23 2 DHW flow at 60 C l min n5 9 3 13 DHW temperature T 210 C 60 60 60 CE product identification number PIN 0063BQ3021 Technical specifications Table 7 Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 16 Parts of the boiler G 909 08 9 gt N Strebel Q boiler heat exchanger ignition unit fan unit air inlet damper gas valve safety valve automatic air vent NOOR GQ T1 flow sensor T2 return sensor T3 cylinder sensor DHW combi T5 flue gas sensor if fitted P1 water pressure sensor 8 ceramic burner cas sette 9 cylinder DHW Combi 10 operating panel 11 Control Tower CMS 12 water filter return CH 13 three way valve 14 circulation pump G gas pipe A flow connection central heating R return connection central heating C condensation pipe figure 15 15 safety group DHW 16 expansion vessel 17 thermostatic mixing valve 18 flue gas discharge 19 combustion air supply 20 air boiler 21 type plate E expansion vessel pipe Q51C K cold water pipe combi W hot water pipe combi 17 Installation examples 17 1 Radiator installation without
44. th this data the boiler calculates the optimal flow temperature for the installation Explanation of the type indication Q Type 51 Nominal load in kW C Combi S Solo STREBEL Q 51C 5 Mounting the boiler The room where the boiler will be placed must always be frost free Itis 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 ofthe boiler casing during operation Therefore requirements of BS 6798 Clause 12 and BS5440 2 may be disregarded The boiler can be mounted practically to any wall with the suspension bracket and the enclosed fixing equipment The wall mustbe flat and of sufficient strength in order to be able to carry the boiler weight with its water content Above the boiler there must be at least 250 mm working space in order to be able to fit a coaxial flue system or a twin supply On the left side of the boiler at least 50 mm and on the right side 10 mm must be reserved to allow fitting or removing of casing The location of the boiler can be determined by using the template located inside the boiler packaging Lift the boiler only by the boilers rear wall J Installation Instructions Strebel Q boiler range Installation Instructions Strebel Q boiler range 5 1 Dimensions 5
45. this one can determine whether to deviate from this advice Please contact the country distributor for further guidance on the frequency ans service requirements 14 2 Maintenance activities To carry out the maintenance activities please follow the next procedure switch off the power supply remove the screw behind the door on the front of the casing Lift the casing and remove it towards the front The air box remove the transparant air box clean the box with a cloth with a simple non abrasive cleaning agent The fan unit and burner cassette remove the electrical connection plug from the gas valve and fan motor loosen the nut of the gas pipe under the gas valve replace the gasket by a new one loosen the front cross head screw of the black plastic silencer after this turn the two clamping rods 4 turn and remove them by pulling them forward Note the right turning direction red indicator slightly lift the fan unit and remove it towards the front of the heat exchanger remove the burner cassette out of the fan unit checkthe burner cassette on wear pollution and possible cracks Clean the burner cassette with a soft bruch and vacuum cleaner If burners are cracked replace the complete burner cassette replace the gaskets between burner and fan unit and the gasket between fan unit and heat exchanger check the venturi and the gas air distribution plate for pollution and clean this part if necessary with a soft brus
46. tion of the boiler Room sealed boiler The boiler retreives its combustion air from outside then discharges the flue gasses to the outside Condensing Retrieves heat from the flue gasses Water condensates on the heat exchanger Modulating Higher or lower burning according to the heat demand Stainless Steel Super solid kind of steel which keeps its quality for life It will not rust or erode in con trast to composition materials like alumi nium The STREBEL S HQboileris aroom sealed condensing and modulating central heating boiler with or without an integrated hot water facility The boiler is provided with a compact stainless steel heat exchanger with smooth tubes A well thought out principal using durable materials The boiler burns gas for supplying warmth The heat is transferred in the heat exchanger to the water in the central heating system By cooling down the flue gasses condensate is formed This results in high efficiency The condensate which has no effect on the heat exchanger and the function of the boiler is drained through an internal siphon The boiler is provided with an intelligent control system CMS Control Management System The boiler anticipates the heat demand of the central heating system or the hot water facility When an outside sensor is connected to the boiler works weather dependantly This means that the boiler control measures the outside temperature and flow temperature Wi
47. to the appliance for isolation purposes The nominal inlet working gas pressure measured at the appliance should be 20 mbar for Nat gas G20 Make sure that the gas pipe work does not contain dirt particularly with new N pipes When the boiler has to be converted from natural gas to LPG STREBEL provides special kits for this purpose Special instructions are supplied with the kit Always check the installation of all of the parts through which gas flows A using leak search spray Hotwater supply Connection of the drinking water installation should be done according to the national water laws The sanitary water pipes can be connected to the installation by means of compression fittings The cold water inlet on the Combi boilers must be provided with the following counted in the water flow direction Dosing valve supplied Safety group consisting of an isolation valve non return valve and expansion valve Expansion vessel 6bar potable water blue A dosing valve must be fitted in the cold water pipe The dosing valve ensures that a quantity of water is supplied which has a guaranteed outlet temperature of 60 C assuming a cold water temperature of 10 C The quantity of water is virtually unaffected by the water pressure With a water pressure lowerthan 1 5 baritis advisable to remove the inside mechanism of the dosing valve 6 6 Condensation drain pipe gt gt STREBEL boilers produce condensate This conde
48. tructions Strebel Q boiler range N Installation Instructions Strebel Q boiler range 9 1 Explanation of the function keys When the pump is switched on continuously it can lead to undesired heating up of the central heating system during the summer l Central Heating programme key Switching the Central Heating on or off Led on off Hot Water programme key Switching the Domestig Hot Water DHW facility on or off Led on off PC programme key adjusts the pump to continuous water circulation in the central heating system Led on or according to the pump overrun times on the relevant programs Led off Mode key After briefly pressing a selection of the data chapters can be retrieved After pressing for 5 seconds it is possible to enter the code as described in chapter 11 3 Step key After briefly pressing the water pressure can be retrieved and pages per chapter can be retrieved After pressing for 5 seconds it switches from the Good state to technical read out and vice versa Reset key After briefly pressing for unlocking errors ending the access code After pressing for 5 seconds an operating stop is made for example for activating the automatic venting programme Some keys have other functions These functions are only active when according to the procedure described in chapter 11 3 adjustment has to be changed or data must be retreived from the CMS The other functions are Centra
49. will be put into operation by means of the key central heating programme The circulation pump will start circulating and the boiler will start the burner 11 2 Hot water supply Provided there is a heat requirement from the cylinder the hot water programme will be put into operation by means of the key hot water programme 11 3 Adjustments When the boiler is installed it is in principal ready for use All adjustments of the boiler control are already pre programmed for a heating system with radiators convectors with a flow temperature of 85 C The adjustments are described in the Parameter chapter on page 28 In certain cases adjustment have to be alterd in case of Lower flow temperature More boilers in Cascade i e Read through the Parameter chapter to adjust the boiler to its installation Contact STREBEL Ltd in case of doubt Please follow next procudere to alter adjustments Press the Mode key for 5 secondss The display shows COGE followed by an arbitrary number Press by means of the or the key until the code C123 is shown Press the STORE key to confirm the code code blinks1 x Now you have acces to the installer level There are 4 chapters PARA Parameters NFO Information chapter no adjustments possible SERV Service chapter ERRO Error chapter no adjustments possible The content of the chapters is described on the following pages Press briefly the MODE key to select one of

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