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Installation Instructions Strebel Q-boiler range

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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 ø28mm coil). The maximal permitted
pressure drop is respectively 20 and 10 kPa at a flow of respectively 1417 and 1587 l/h.
See installation example 16.2 on page 37 for the hydraulic connection.

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Содержание S-HQ

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Страница 2: ...ow water temperature Automatic venting programme 3 4 5 6 7 8 9 A Water pressure is to low 1 0 bar flashing FILL will alternate with indication of water pressure boiler power of 50 is possible The installation needs to be topped up Operation indication in the first display position by technical read out Mode key Selecting chapters Water pressure is to high 2 8 bar if HIGH indication remains continu...

Страница 3: ...0 1 Hot water supply 24 11 Commissioning the boiler 25 11 1 Central heating system 25 11 2 Hot water supply 25 11 3 Adjustments 26 11 4 Activating factory settings green key function 28 12 Isolating the boiler 29 13 Commissioning 29 13 1 Checking for contamination 29 13 2 Checking of the zero pressure control 30 13 3 Checking the CO2 31 14 Maintenance 32 14 1 Frequency of maintenance 32 14 2 Maint...

Страница 4: ...tion 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 S...

Страница 5: ...ion 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 activities always check the installation of all parts through which gas flows using leak search spray Following maintenance or other activities always replace the housing...

Страница 6: ...d 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 w...

Страница 7: ...8 Clause 12 and BS5440 2 may be disregarded The boiler can be mounted practically to any wall with the suspension bracket and the enclosedfixingequipment Thewallmustbeflatandofsufficientstrengthinordertobeable 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 s...

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Страница 10: ...e 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 walled pipe welded or threaded When removing the plastic sealing caps from the pipes contaminated testing water can be ...

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Страница 12: ...f from the expansion vessel when the thermostaticradiatorvalvesarefullyclosed Asecondexpansionvesselintheinstallation 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...

Страница 13: ...onnecting 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 be dismantled The space which is required for mounting the expansion vessel module corresponds withth...

Страница 14: ...liance for isolation purposes The nominalinletworkinggaspressuremeasuredattheapplianceshouldbe20mbarforNat gas G20 Make sure that the gas pipe work does not contain dirt particularly with new 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 part...

Страница 15: ...bility 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 o...

Страница 16: ... The flue gas outlet and air supply installation must comply with the current regulation requirements IG UP 10 and BS 715 Open boiler Room sealed system SS PP SS PP PP SS PP Open boiler en roomsealed system figure 8 PP PP MW PP MW PP MW All flue gas parts which are outside the fire resistant cover need to be in stainless steel Boiler Class C Permitted only when the air intake and the flue gas outl...

Страница 17: ...he Gastec nr 0063BQ3021 0063AS3538 and 0063AU3110 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 Wit...

Страница 18: ...dow 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 I S 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 s...

Страница 19: ...nth 80 18 Maximum straight lenth 100 39 87 bend resistance length 1 5 87 bend resistance length 1 8 45 bend resistance length 0 8 45 bend resistance length 0 9 39 60 kW Maximum straight lenth 80 6 Maximum straight lenth 100 18 87 bend resistance length 1 5 87 bend resistance length 1 8 45 bend resistance length 0 8 45 bend resistance length 0 9 ø60 100mm B in m ø80 125mm B in m ø100 150mm B in m 1...

Страница 20: ...he 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 ø28mm coil The maximal permitted pressure drop is respectively 20 and 10 kPa at a flow of respectively 1417 and 1587 l h See installation example 16 2 on page 37 for the hydraulic con...

Страница 21: ...e with the enclosed regulations Should it be necessary to change it the mains power supply cable may only be replaced with an STREBEL mains power supply cable item No S4407300 The STREBEL room thermostat and controls must be connected to their allocated connections All other types or makes of room thermostats or controls which are used must have a Volt free contact For more detailed questions rega...

Страница 22: ...Installation Instructions Strebel Q boiler range 22 electrical diagram figure 11 ...

Страница 23: ...tion 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 Whenthesystemhasbeenfilledtheautomaticventingprogramstarts whenaprogramme has been selected by pressing the key for Central Heating DHW or pump programme of The programme takes 17 minutes...

Страница 24: ...d 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 accord...

Страница 25: ...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 The working pressure of the installation should be between 1 5 and 1 7 bar when the installat...

Страница 26: ...t of the burner pressure and air quantity because it is 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 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 ...

Страница 27: ...hapters PARA Parameters INFO 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 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 i...

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Страница 30: ...ustment 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 t...

Страница 31: ... key for 5 seconds The diplay will show COdE 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 once until 1 is shown alternately 1 and OFF will be shown Turn the upper measuring nipple on the gas valve open fig 13 Connect the hose of the digital pressure g...

Страница 32: ...ode 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 once until 1 is shown alternately 1 and OFF will be shown Calibrate the CO2 meter Place the lance of the CO2 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...

Страница 33: ...lack plastic silencer after this turn the two clamping rods 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 check the burner cassette on wear pollution and possible cracks Clean the burner cassette with a soft bruch and vacuum c...

Страница 34: ... 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 if there is a leak at the siphon cup or tray the complete siphon unit has to be replaced by S44516xx remove the plug from the flue gas sensor if present turn the two short clamping rods turn and remove them by pulling them forward Note the right...

Страница 35: ...S T R E B E LS H Q ...

Страница 36: ... sensor T3 cylinder sensor DHW combi T5 flue gas sensor if fitted P1 water pressure sensor Strebel Q boiler figure 15 4 2 1 3 19 5 18 7 6 9 20 C E 13 14 15 16 17 W G 21 10 T1 8 11 T2 T3 P1 K R A T5 15 safety group DHW 16 expansionvessel 17 thermostatic mixing valve 18 flue gas discharge 19 combustion air supply 20 air boiler 21 type plate G gas pipe A flow connection central heating R return conne...

Страница 37: ... A0 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 17 Installation examples BP 17 1 Radiator installation without thermostatic radiator valves ...

Страница 38: ...on terminal Strebel Q boiler A4 Outside sensor ARV12 A9 MadQzonecontroller 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 ...

Страница 39: ...imum or maximum power Block 67 A T has been detected between flow and return sensor whereas the burner is not in operation After the T 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 wa...

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Страница 43: ...e company reserves the right to change the specifications and dimensions without prior notice E O E STREBEL LTD 1F 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 ...

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