Strebel S-HR Installation Manual
Contents
1. 0 692 10 0LOCOA EEE Kem GS 9 9 udio 0 U09 11 Josu s moy a fend oz LLX 61 10sues 2 E IN 5 5 JE z 2 i 8 v Ld 40sues jeje b o OLX 5 m s o 21 10sues C 09915 E z eouejsiseJ uojedionuy B AVE Y uopestide jo esso ui E xen duy t i SM i ma m v A 2 oe sz m s zem S O 2 ESTIS 8 5 n cu s Nee yequos sosues v per 00 ejes onea emoon Aiddng AO Z Avz so N ouf arz apismo uonoouuos syuoo noez nosz ue4 eru jed 11v Pose Ed2. BRE V 1 1 1 01 O 2 a O X a EN 2 connecting of the unit to two independently controlled radiator zones figure 22 1 STREBEL S HR unit 2 expansion tank 3 outside sensor ARV1205U 4 draining possibility 5 Brain thermostat Master AA1RT15G 6 2 core sleeve cable 7 group controller AA1RR15G 8 three way valve group controller 9 pump group controller 10 return valve group controller 11 flow sensor group controller 12 Brain thermostat group AA1RT15G 13 adjustment valve 14 low velocity header Installation instructions S HR series page 30 STREBEL HR Boiler 15 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 to the fact that blocking can be of a temporary 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 D r d Es rU D D B nM 5 co TU C D r co Un Block 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 ope
3. MSS mm 120 120 120 120 120 120 120 120 flue gas exhaust mm 270 270 270 270 270 270 270 270 G left side gas pipe mm 65 65 65 65 65 65 65 65 H left side flow pipe mm 185 185 185 185 185 185 185 185 J left side return pipe mm 285 285 285 285 285 445 445 445 K left side condensation pipe mm 370 370 370 370 370 530 530 530 L left side expansion tank pipe mm 430 430 590 M left side cold water pipe mm 725 725 885 N left side hot water pipe mm 795 795 955 P pipe lenght of g mm 18 18 18 18 18 18 18 18 pipe lenght of c and k mm 40 40 40 40 40 40 40 40 R pipe lenght of a e and w mm 60 60 60 60 60 60 60 60 S back centre of pipe c mm 25 25 25 25 25 25 25 25 T centre of pipe g mm 40 40 40 40 40 40 40 40 U centre of pipe a r e k w mm 50 50 50 50 50 50 50 50 Dimensions table 1 Dimensions in mm figure 1 STREBEL Installation instructions S HR series page 5 SUPER S HR S HR S HR S HR S HR S HR S HR XE 15 24 24T 35 35 51 51 60 combustion air supply mm 80 80 80 80 80 80 80 80 flue gas exhaust mm 80 80 80 80 80 80 80 80 gas pipe G Ys inside Z inside inside inside inside inside 34 ins
4. STREBEL uper HR Po SNOILONALSNI NOILVTIVLSNI S HR 15 5 24 24 S HR 35 35T 5 51 51T S HR 60 Contents page 1 Description of the unit enne 4 2 Scope of the delivery iot rtr rta e Pn pe Cedar ro ER aae e pn a RR aee 4 3 Mounting of 4 3S4 Dimensions x ud te 5 4 Connecting BOO epe 6 4 1 Central heating system 8 7 AD EXPANSION tank eM 8 4 3 Underfloor heating systems ee eee 10 44 test t UAI M MM MEL UM E 10 4 5 Hot water supply 5 10 4 6 Condensation discharge pipe 10 4 7 Flue gas exhaust system and air supply system 11 5 External CalOnters m 12 6 Electrical connection te 12 7 Roja E 14 7 1 Explanation of the function 14 8 Filling and venting of unit and 15 8 1 Central heating system 15 8 2 Hot water supply 15 9 Putting the unit into operation 16 9 1 Central Heating system 16 9 2 H
5. Safety valve inside the unit Inlet combination and safety valve only with S HR T units 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 Installation and user card 3 Mounting of the unit The unit can be mounted practically to every wall with the mounting bracket and the included fixingequipment The wall must be flat and of sufficient strength in order to be able to carry the unit weight Above the unit there must be at least 250 mm working space in order to be able to fit a twin supply and exhaust system or 500mm when fitting a horizontal coaxial flue system On the left side of the unit at least 50 mm and on the right side 10 mm must be reserved in connection with fitting or removing of the casing The location of the unit can be determined by using the template on the inside of the wrapper Installation instructions S HR series page 4 STREBEL gelo 3 1 Dimensions S HR S HR S HR S HR S HR S HR S HR S HR 15 24 24T 35 35T 51 51 60 A height mm 680 680 680 680 680 680 680 680 B width mm 500 500 840 500 840 660 1000 660 C depth mm 370 370 370 370 370 370 370 370 D left side flue gas exhaust mm 335 335 335 335 335 495 495 495 E
6. T max flow water 60 C autom K factor heating line 1 5 autom gradient 4 C min autom gear differential 4 C autom 04 full underfloor heating T max flow water 50 C autom K factor heating line 1 0 autom gradient 3 C min autom gear differential 3 C autom 10 fine adjustment heating line day temperature 0 5 tot 5 11 fine adjustment heating line night temperature 0 5 tot 5 23 frost safety temperature 3 20 tot 10 24 uo M e of additional cylinder 63 C 40 80 C 48 minimum pump capacity S HR 51 60 2596 5096 25 10096 user adjustment possibilities table 6 User adjustments To switch from the level to the opera ting status level with the read out of the operating functions the water tempe rature and the water pressure the following acts must be carried out From the display read out press the Step key for 5 seconds after which the operating status and the water temperature will be shown for 8 seconds and the water pressure for 2 seconds If after this the Mode key is pressed briefly the adjustments chapter is displayed by means of the text By pressing the Step key briefly the adjustment facilities are shown Adjustment of the fixed value can be done by means of the or the key Confirmation ofthe new setting is done with the Store key Brain thermostat Most of the adjustments which are stated in tables 6 and 7 are unnecessary when in combination with the Brain and will be t
7. The quantity of water is virtually unaffected by the water pressure With a water pressure lower than 1 5 bar it is advisable to remove the inside mechanism of the flow regulation valve Connecting of the drinking water installation should be done according to the water BYE laws 4 6 Condensation discharge pipe The collective condensation discharge pipe should be connected to the waste by means of an open connection By this means the possibility of sewer gases ending up in the unit is prevented The waste connection should have a minimum diameter of 25 mm The following components are connected to the collective condensation discharge pipe Condensation discharge Safety valves Inlet combination S HR T Discharging of the condensation water to the precipitation discharge is not permitted in view of the danger of it freezing A Before putting the unit into operation fill the trap with 300 ml of water Installation instructions S HR series page 10 STREBEL super HR Bei 4 7 Flue gas exhaust system and air supply system The unit connection diameter is 80 mm to which the flue gas discharge and air supply system can be fitted with or without bends The maximum usable pipe length is stated in table 5 It is advisable to use stainless steel discharge equipment for the flue gas discharge By using the STREBEL icicle free trough the roof kit ice forming around the flue terminal is prevented For the air sup
8. These components should only be cleaned if it is determined that the maximum Pa is no longer obtained as described in chapter 12 1 The fan unit must be removed in order to be able to inspect the heat exchanger In this case the following actions must be carried out close the gas valve and isolate the units 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 loosenthe front crosshead screw ofthe black plastic air inlet damper after this turn the two clamping rods 74 turn and remove them by pulling them forward Slightly liftthe fan unitand remove ittowards the front of the heat exchanger thefanunitand 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 same direction as the heat exchanger fan unit the burner ceramic bricks and the heat exchanger can be cleaned by means of a soft brush Refitting of the components is done in reverse The following components require extra attention before and after refitting make sure that the gasket for the ceramic bricks is fitted onto the heat exchanger precisely make sure that
9. 1 0 bar flashing FILL will be altered with indication of water pressure unit power of 50 is possible The installation needs to be topped up i r r E Water pressure is too low 0 7 bar FILL indication remains continuously visible the unit is taken out of operation The installation needs to be topped up ri r r Water pressure is too high 73 5 bar HIGH indication remains continuously visible the unit is taken out of operation The installation pressure needs to be decreased by draining water SE Se
10. can function normally in installations which have an installation resistance of up to 12 kPa and in cascade installations If the installation resistance is higher than 12 kPa the unit will automatically reduce in power If the capacity of the unit pump is insufficient an extra external pump can be installed in series with the unit 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 unit pump The maximum absorbed current consumption of the external circulation pump may be 230 W 1 Amp Use with a low velocity header can also be selected In this case a larger secondary sided water output has to be taken into account in order to affectthe height of the water temperature F N LI figure 3 external installation pump in series STREBEL SUPER HR E Installation instructions S HR series page 7 ES external installation pump with low velocity header figure 4 As standard the unit is provided with a water filter in the return pipe of the unit With this possible contamination ofthe central heating water is prevented from ending up in the unit The unit is also provided with an internal safety valve set at 3 bar This is connecte
11. coil size less than 3 4 inch pr T1 j A S HR with calorifier figure 14 6 The unit complies with the CE machine guidelines 89 392 EEC Electrical connection The installation must be in accordance with Current Regulations Local Regulations A visible electrical isolation switch must be fitted adjacent to the boiler complete with an earth The apparatus complies with the following regulations low voltage guideline 73 23 EEC EMC guideline 89 336 EEC Furthermore the following general regulations are valid no modifications may be made to the wiring of the unit all connections must be made to the connection block The Brain 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 potential free contact When using an on off thermostat or control itis possible that an anticipating resistance must be installed in order to 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 be connected 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 component
12. every two years and an overhaul every four years When doing this the circumstances of the unit s location must be taken into account From this one can determine whether to deviate from this advice Installation instructions S HR series page 22 STREBEL 12 Technical specifications S HR S HR S HR S HR S HR S HR S HR S HR 15 24 24T 35 35T 51 51T 60 input Hs kW 15 0 24 0 24 0 35 0 35 0 51 0 51 0 60 0 input Hi kW 13 5 21 6 21 6 31 5 31 5 45 9 45 9 54 0 modulation range capacity 80 60 C kW 3 5 13 3 3 5 21 2 3 5 21 2 4 9 30 9 4 9 30 9 8 8 45 0 8 8 45 0 8 8 52 9 modulation range capacity 50 30 C kW 3 9 14 4 3 9 23 0 3 9 23 0 5 3 33 6 5 3 33 6 9 5 44 9 9 5 44 9 9 5 57 2 efficiency 80 60 C at full load 98 98 98 98 98 98 98 98 efficiency 50 30 C at full load 107 107 107 107 107 106 106 106 efficiency in accordance with EN677 109 109 109 109 109 109 109 109 yearly emission of NOx ppm 12 12 12 12 12 12 12 12 yearly emission of CO ppm 11 11 11 11 11 11 11 11 co 9 9 9 9 9 95 9 5 9 5 flue gas temperature at 80 60 Cat full load C 65 65 65 67 67 68 68 68 flue gas temperature at 50 30 C at low load C 31 31 31 31 31 31 31 31 burner control stepless modulation gas consumption at 1013 mbar 0 C G20 m h 1 32 2 10 2 10 3 07
13. independent radiator zones 30 19 codghe euEer PRETIUM 31 STREBEL Installation instructions S HR series page 3 SUPER HR Bet 1 Description of the unit The STREBEL S HR Boiler is a room sealed condensating and modulating central heating unit with or without an integrated hot water facility The built in fan sucks the combustion air from outside and provides full premixing of the gas and air The gas mixture is guided through the ceramic burner which is fitted above the heat exchanger As a result of the small flame height a compact construction is possible The combustion gasses are exhausted after passing through the stainless steel heat exchanger The formed condensation water is discharged through the waste trap The unit has been tested according to valid CE standards and has a CE certificate The operating efficiency of the unit is higher than 9896 on top value As aresult of its compact construction the radiation convection and stand by losses are very low The emission of damaging substances is far below the standard set for equipment with the gas quality control label for clean combustion The unit is provided with an automatic venting program In case of a recently topped up or filled up installation this program takes care of the removal of any present air In this case the control will check the water pressure and if it is too low will report this on the display The unit anticipate
14. key see chapter 10 2 PC program key adjusts the pump to continuous water circulation in the central heating system or according to the pump overrun times on the relevant programs 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 10 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 indication to technical indication and the other way round Reset key after briefly pressing for unlocking errors ending the access code ending the automatic venting program only when the access code is entered and the reset key is pressed briefly After pressing for 5 seconds an operating stop is made for example for activating the automatic venting program Other key functions from the other indications are Central Heating key then has the function 43 Hot Water key then has the function has the store function which means that by means of this key a modified setting is confirmed Step key for scrolling in a data chapter Installation instructions S HR series page 14 STREBEL super HR Bei 8 Filling and venting of unit and installation Filling of the installation can be carried out according to the usual method In order to read out the central heat
15. system should always be installed sloping towards 30 mm m the unit in order for condensation water not to gather in the exhaust system With condensation water flowing back to the apparatus the chance of ice forming on the trough the roof kit is minimal In case of horizontal outlets the supply system has to be installed sloping outside in order to prevent rain coming in It is superfluous to install an extra condensation collecting unit In operation the unit produces a white A condensation plume This condensation plume is harmless but can be experienced as disturbing especially in the case of outlets in the wall For this reason it is advisable to exit at roof level The apparatus is not suitable as an open unit This means that the combustion air always has to be brought from outside Where the unit is installed in a compartment ventilation is required as per BS 5440 STREBEL SUPER HR amp Installation instructions S HR series page 11 5 Various external calorifiers can be connected to a S HR unit depending on the comfort requirements The wiring of the calorifier thermostat can be connected to the connection block in the Control Tower by means of the relevant plug Calorifiers which are used together with the S HR boiler should be of the quick recovery type N External calorifiers S HR51 and S HR60 Consult STREBEL when using calorifiers with lower absorption than 20kW or primary pipe and or
16. the fan unit clamping rods have been pushed backward sufficiently and that they have again been turned turn make sure that the gas connection under the gas block is tightened The waste trap In order to check the waste trap for contamination the following actions must be carried out make sure that the unit is off by isolating the units electrical supply turn the Control Tower forward around its left hinge point turn the waste trap cup to the left until it is released from the screw thread Do not use pliers or wrenches for removing the waste trap cup Refitting is done in reverse order 11 5 Further checks Checking the ionisation current jonisation determines if there is a flame present with correct combustion The measurement is done by means of connecting a Micro ampere gauge in series with the ionisation thread The minimum allowed ionisation is 2 uA The unit will modify its load anyway if the ionisation reaches the bottom limit of 2 HA Checking by means of a visual inspection Avisualinspection 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 requires cleaning if the circulation pump is adjusted at maxi mum speed and the maximum AT is exceeded 11 6 The frequency of maintenance STREBEL advise to carry out an inspection to the unit
17. underfloor heating zone figur 20 STREBEL SUPER HR unit expansion tank outside sensor ARV1205U drain points Brain thermostat AA1RT15G underfloor heating 2 core sleeve cable zone controller AA1RR15G zone three way valve 10 zone pump 11 zone non return valve 12 zone flow sensor 13 adjustment valve Installation instructions S HR series page 28 STREBEL supe HR Bott 14 4 radiator installation and an independent underfloor heating zone V V 10 J 109 109 lt connecting of the unit to a radiator installation and an independently controlled underfloor heating zone figure 21 STREBEL S HR unit expansion tank outside sensor drain points Brain thermostat Master underfloor heating 2 core sleeve cable group controller three way valve group controller 10 pump group controller 11 return valve group controller 12 flow sensor group controller 13 adjustment valve 14 Brain thermostat zone controller ARV1205U AA1RT15G AA1RR15G AA1RT15G STREBEL SUPER HR Installation instructions S HR series page 29 14 5 two independent radiator zones 2
18. 3 07 447 447 5 26 burner type ceramic foam ceramic current type V Hz 230 50 230 50 230 50 230 50 230 50 230 50 230 50 230 50 maximum electric power recorded W 122 122 122 145 145 190 190 190 standby electric power recorded W 5 5 5 5 5 5 5 5 degree of protection according to EN60529 IP 40 IP 40 IP 40 IP 40 IP 40 IP 40 IP 40 IP 40 weight net kg 50 50 73 53 76 63 86 63 water capacity CH based 3 5 3 5 3 5 5 7 7 7 water capacity DHW based l 14 14 13 pump overrun time CH min 15 15 15 15 15 15 15 15 pump overrun time DHW min 1 1 1 minimum water pressure bar 1 1 1 1 1 1 1 maximum water pressure bar 3 3 3 3 3 3 3 3 maximum flow water temperature C 90 90 90 90 90 90 90 90 tap flow rate at 60 C l min 6 8 5 12 5 tap flow rate at 45 l min 8 5 12 5 17 5 ARS ARS ARS ARS ARS ARS ARS ARS ope Wil 5570 2570 25 70 25 70 25 70 25 75 25 75 25 75 available pump head kPa 35 25 25 20 20 20 20 12 expansion vessel content 12 12 expansion vessel pre pressure bar 1 1 unit specifications table 11 STREBEL Installation instructions S HR series page 23 SUPER HR 13 Diagram showing various parts of the unit Va VUE
19. 4 return water temperature T2 C 5 calorifier water temperature T3 C 7 outside temperature 4 C 8 gas temperature T5 16 power in 96 96 17 power in kW kW 18 present load in kW kW 20 control bus communication 21 GJ consumption total GJ 22 GJ consumption central heating GJ 23 GJ consumption hot water GJ 24 total number of burner run hours hour 25 number of burner run hours central heating hour 26 number of burner run hours hot water hour 32 number of hours counter hour 46 within how many hours is service required hour installer information possibilities table 8 STREBEL super HR Belo Service chapter After the access code has been fed in it is possible to temporarily manually adjust the number of revolutions of the fan in the service chapter table 9 In order to select the service chapter the Mode key has to be pressed 3 X after feeding in the access code By means ofthe Step key the first function is displayed with the text Off By means of the or key a required number of revolutions for the fan can be selected while the unit is operating With Step 4 it is possible to activate the showroom position by pressing the key after which the text on appears in the display After this a simulated water pressure of 1 9 bar and a water temperature will be indicated Pump or burner action is not possible After a voltage interruption or a reset the showroom position is swit
20. Control Tower a number of adjustments can be made These adjustments can be fed in easily by means of the keys on the unit However a distinction is made between adjustments which are done by the user and adjustments done by the installer At users level adjustments can only be made from the technical read out in other words from the display read out with the operating function and the water temperature Adjustments can not be made from the indication The next two chapters are accessible after pressing the Mode 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 Installation instructions S HR series page 16 STREBEL gelo User parameter adjustments Step description factory range 1 maximum flow water temp central heating 85 20 90 2 type of central heating system 01 1 4 01 radiators air heating convectors T max flow water 85 autom K factor heating line 2 3 autom gradient 5 C min autom gear differential 6 C autom 02 radiators with large surface areas or underfloor heating as additional heating T max flow water 70 C autom K factor heating line 1 8 autom gradient 5 C min autom gear differential 5 C autom 03 underfloor heating with radiators as additional heating
21. Ir SES 91919 2 2 2 2 2 ZANG a B LO 2 2 09925 SEN mm A 2 ee vx Ex enia wl aod WO ei N wy 1 A OEZ L ojen uoniub puera y S v A0EZ WMd dung Q z f L f oo Installation instructions S HR series page 13 STREBEL super HR Belo 7 Control of the unit The unit is provided with a self adjusting control called the Control Tower This control takes over a large part ofthe manual adjustments which means putting the unit into operation has been extensively simplified After plugging the plug into the wall socket the unit will not undertake any operating action and no operating lamps will be lit On the display the relevant status will be shown Rea ding out of the status can be done in two ways The first way is a simple read out called the Good status The unit will only show the indication During this read outthe unit can be in normal operation without this showing in any other way If it is necessary to show a report it will be shown on the display The second way is the technical way which shows a more extensive read out with among others the position in which the unit is active with the flow water temperature and the water pressure of the central heating system The second level is reached from the indication after pressing the STEP key for 5 seconds Returning to the indication is done the same way Only when activatin
22. PA 5 gt E 2 2 He Dr 2 22 tower 4 7 A A N 1 12 C 46 7 y Vv R C E W unit diagram figure 16 gas pipe flow connection central heating return connection central heating condensation pipe expansion tank pipe S HR T cold water pipe S HR T W hot water pipe S HR T Amozo 0 T1 flow sensor T2 return sensor T3 calorifier sensor HWS S HR T T5 flue gas sensor if fitted P1 water pressure sensor Installation instructions S HR series page 24 STREBEL super HR Bello a ED 4 m e PAN m NA E e ZLA 5 8 Control Tower d o a KXING cf A y h m unit description heat exchanger ignition unit fan unit air inlet damper gas block safety valve automatic air vent ceramic burner bricks calorifier HWS S HR T operating panel figure 17 Control Tower water filter return central heating three way valve S HR T circulation pump inlet combination valve S HR T safety valve S HR T thermostatic mixing valve S HR T flue gas discharge combustion air supply air unit type plate STREBEL SUPER HR amp Installation i
23. aken care of by the Brain itself and do not have to beadjusted Most ofthe data in table8 can be requested by the Brain For further information with regard to the Brain thermostat we refer to the Brain thermostat installation manual In order to gain access to the adjustments at installers level the entrance code has to be fed in first For this the following operations have to be carried out Press the Mode key for 5 seconds The text is shown after which a random number appears on the display By means ofthe orthe key the code can be fed in After pressing the Store key the code is confirmed With this entrance to the installers level is given The next chapters are shown after pressing the Mode key Chapter 3 The chapter where information can be retrieved Chapter 4 The chapter in which adjustments can be made for service purposes Chapter 5 The chapter in which error data can be retrieved STREBEL SUPER HR amp Installation instructions S HR series page 17 Installers adjustments Adjustments whereby technical knowledge is required have been classified under the installers level Access to this level is obtained after feeding in a code after which adjustments for user and installer are visible For going to the Adjustments Parameters chapter the Mode key should be pressed once after which itis shown with the text Scrolling in the Parameter chapter can be done by means ofthe Step key Ad
24. ce of air The automatic air vent in the unit will make this air disappear by which means the water pressure can reduce during this period and therefore topping up with water will have to be done 8 2 Hot water supply Apply the water pipe pressure to the calorifier open main valve and or stop valve of the inlet combination valve Vent the calorifier 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 calorifier and the pipes and only water is flowing from the tap STREBEL SUPER HR Be Installation instructions S HR series page 15 9 Putting the unit into operation Before putting the unit into operation make sure thatthe unit and the installation are well vented Vent the gas pipe and open the gas valve for the unit The unit does not require adjustment of burner pressure and air quantity because it is self adjusting and is factory set at the correct value 9 1 Central Heating system Provided there is a heat requirement from the thermostat or control the central heating program will be put into operation by means of the key central heating program The circulation pump will start circulating and the unit will start the burner 9 2 Hot water supply Provided there is a heat requirement from the boiler the hot water program will be put into operation by means of the 4N key hot water program 4 9 3 Adjustments In the
25. ched off Error chapter After the access code has been fed in the Error chapter can be read table 10 In order to select the Error chapter it is necessary to press the Mode key 4 X after feeding in the access code By means of the Step key the functions are shown which were stored when the unit went into an error state The first error which is shown is the last the next error is the second last etc In order to return to the normal technical read out whereby the water temperature and water pressure are shown the Standby chapter must be requested by means of the Mode key After a few seconds the text standby will be replaced by the technical read out Other wise returning to the Good read out automatically occurs after 20 minutes in the event that no more keys have been used Green key function The green key function can be used in order to activate the factory settings By this means the modified settings are cancelled The following actions must be carried out Make sure that chapter is shown in the display by means of the Mode key After this press the Store key The word Copy becomes visible and the factory settings will be active again Service mode installer Step description 1 boiler in operation with burner function on 2 adjustable and burner off 3 pump adjustable with burner on 4 showroom position ON active and OFF
26. d to the discharge construction to the waste 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 by pass in order to prevent flow problems in the installation The unit is designed to be used on sealed system only Additives in the installation water are only permitted in consultation with STREBEL LTD When using more than one unit in an installation please refer to the cascade installation instructions 4 2 Expansion tank All STREBEL S HR T units are provided with an expansion tank on top of the calorifier This expansion tank is connected to the three way valve and the circulation pump By this means the expansion water when functioning for the hot water supply is prevented from being shut off from the expansion tank when the radiator thermostat valves are fully closed A second expansion tank in the installation is not a problem The STREBEL S HR units are not equipped with an expansion tank pipe If a S HR unit is combined with an Comfort calorifier the expansion tank connection is included in the internal piping of the Comfort calorifier to which the expansion tank can be connected If a different calorifier is used then one has to take into account that the expansion tank should be connected between the three way valve and the unit circulation pump A In connection with correct func
27. e unit plug into the wall socket and leave the operating lamps off Connect the filling hose to the cold water tap and let it fill with water Connect the filled filling hose to the filing and draining valve and open this valve Open the cold water tap and fill the installation slowly The unit 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 pressing the pump key which means the pump lamp will be lit Allow the control to finish its venting program The pump will circulate a number of times around the boiler as well as the central heating installation Also if a three way valve if present this will be adjusted to the boiler and central heating installation a number of times The pump will be stopped regularly in order to allow possible present air to escape Checkthe water pressure and if required top up The working pressure in the installation should be bet ween 1 5 and 2 bar in cold state After finishing the automatic venting program the key gt can be switched off again A It can take a while before all air has dis appeared from a filled installation Especially in the first week noises can be heard which indicate the presen
28. forming Error 01 short circuit of 24 volt circuit Error 02 no flame forming Error 04 adjustment or error for voltage interruption Error 05 adjustment Error 12 fuse 24 volt 3AT faulty Error 18 maximum flow temperature exceeded Error 19 maximum return temperature exceeded Error 28 number of revolutions not reported back from fan Error 69 no or incorrect display Error 80 maximum flue gas sensor temperature exceeded STREBEL Installation instructions S HR series page 31 SUPER HR Explanations of symbols and signs on the Control Tower display um central heating did progr on off hot water 23 progr on off pump progr store on off Mode key mode Reset key Mode key Selecting chapters Step key Scrolling in a chapter Reset key Unlocking the unit in case of error Operation indication in the first display position 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 too high flow water temperature reo 2 on un C wo Pu LE Automatic venting programme P Water pressure is too low
29. g the operating program pump circulating after filling up the installation will the automatic venting program start as standard after pressing the PC program key This automatic venting program takes 15 minutes and stops automatically After this the unit will function for the activated part In case of a heat requirement which arises for central heating or hot water a certain flow water temperature will be calculated This calculated water temperature is called the T set value This value becomes active in case of a demanding room thermostat after which the unit power will be adjusted With a recently started unit a build up delay of the T set valve is active The main purpose ofthis is to preventthe unit going into operation at full power due to which disturbing noises and unnecessary temperature peaks can arise In the case of heat requirement from the hot water supply the T set valve on the central heating return water temperature is adjusted Depending on the amount of domestic water which is withdrawn from the calorifier the central heating return water temperature which adjusts the load of the unit will vary A Each time the mains power supply to the boiler is broken the automatic venting pro gram will re start once there is power to the boiler 7 1 Explanation of the function keys Key functions from the and the extensive indication are Central Heating program key see chapter 10 1 43 Hot Water program
30. hich is carried out at the factory is once only which means that adjusting of these values is unnecessary 11 1 Checking for contamination In order to be able to check the unit for contamination in the following running years it is advisable to measure the maximum air displacement in the unit when putting the unit into operation This value can be different with each type of unit In order to be able to measure this value the following operations must be carried out in order to enter the service chapter feed in the access code as described on page 18 select the manual fan setting without burner action Step by means of the Step key which will indicate that the fan is off connect the digital pressure gauge hose to the uppermost measuring nipple of the gas block according to figure 12 open it before fitting the hose m Q qe Q measuring point air pressure difference figure 12 takethefantoits maximum number of revolutions by means of the key measure the pressure difference and write down this value when next servicing the unit the value of the fan output may not have reduced by more that 2096 compared to the value during commissioning If this value is lower than 2096 the unit does not require maintenance 11 2 Checking of the zero pressu
31. ide inside central heating flow pipe A mm 28 28 28 28 28 35 35 35 central heating return pipe R mm 28 28 28 28 28 35 35 35 condensation discharge pipe C mm 24 24 24 24 24 24 24 24 expansion vessel pipe E mm 22 22 22 cold water pipe K mm 15 15 15 hot water pipe W mm 15 15 15 connection diameters table 2 4 Connecting the unit minimum 250 mm or 500 mm unit pipes bottom figure 2 The unit has the following connection pipes The central heating pipes hot and cold water pipes can be connected to the installation by means of compression fittings The gas pipe of the unit is provided with a female thread into which the tail piece of the gas valve can be screwed The condensation discharge pipe consist of an oval 24 mm plastic pipe The discharge pipe can be con nected 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 consist of 2 x 80 mm connections Installation instructions S HR series page 6 STREBEL super HR Belo 4 1 Central heating system The unit 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 tes
32. iew of the expansion tank module figure 6 dimensions in mm expansion tank module figure 5 The space which is required for mounting the expansion tank module corresponds with the required space for mounting a S HR unit The included template and mounting strip for the S HR unit can be used for the expansion tank module The S HR unitis fitted on to this after the expansion tank module has been mounted The necessary mounting strip for the unit is present on the module side view of the module with S HR unit figure 7 dimensions in mm Article numbers the expansion tank module without pipe connections AEMO209U pipe connections for expansion tank module ALEO004U STREBEL Installation instructions S HR series page 9 SUPER HR amp 4 3 Underfloor heating systems When connecting or using an underfloor heating system fitted with plastic pipes one has to take into account that the plastic pipes used meet the DIN 4726 4729 standard It is stated in this standard that the pipes may not have a higher oxygen transmittance than 0 1 g m d at 40 If the system does not meet this DIN standard then the underfloor heating section will have to be separated from the central heating unit by means of a plate heat exchanger In case of non compliance with the regulations concerning plastic unde
33. ing water pressure the unit plug should be plugged into the socket The circulation pump will not begin to operate as long as the operating lamps are off The control display will show a indication which means that the control is signalling insufficient water pressure If the installation is filled and the water pressure rises then the water pressure will automatically be shown with an alternating text If the water pressure rises to above 1 5 bar then after a short stop text the indication will appear which means the water pressure is sufficient and the unit is ready for operation In order to be able to read out a constant water pressure the Step key should be pressed in and in order to obtain a constant readout the Step key should be pressed briefly again Ifthe water pressure in the unit becomes too high gt 3 5 bar a text appears by which means the burner is switched off After draining the water from the installation by which means the water pressure arrives below 3 bar the text disappears and the burner is 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 user requires a technical read out In order to return to the read out the Step key must be pressed again for 5 seconds 8 1 Central heating system For filling the central heating installation you use the filling and draining valve Filling is done as follows Plug th
34. justing the fixed value can be done by means of the or the key Confirming the new adjustment is done with the Store key Information chapter After feeding in the access code the information can be read out according to table 8 In order to select the information chapter the Mode key must be pressed twice after feeding in the code New adjustments can not be done in this chapter Scrawling in the information chapter is possible by means of the Step key Installation instructions S HR series page 18 Extra parameter adjustments installer Step description factory range 3 max power central heating in kW maximum min max ust onor thermostat 0 100 on off thermostat 1 110096 on off weather dependent 5 heating line K factor 2 3 0 2 3 5 6 heating line exponent 1 4 1 1 1 4 qf heating line climate zone 10 20 0 14 gradient speed 7 0 15 15 booster after night reduction 0 0 of 1 0 ino 1 36 type of three way valve 0 0 3 0 VC 2010 1 VC 6940 modulating 43 max power power hot water in KW maximum min max 49 5 100 40 100 89 address setting interface 0 1 7 1 spare 0 Brain 0 7 boiler 1 8 in Cascade installer adjustment possibilities table 7 Information mode installer Step description value 1 flow water temperature T1
35. non active installer service possibilities table 9 Error mode installer Step description value 1 number 2 operating status unit 3 flow water temperature T1 4 return water temperature T2 5 kW 6 pump capacity 96 installer error possibilities table 10 STREBEL SUPER HR amp Installation instructions S HR series page 19 10 Switching off the unit In some situations it may be that the entire unit must be switched off By switching off the three keys with the lamps for central heating hot water and pump program the unit is switched off STREBEL advise to leave the plug in the wall socket by 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 unit and or the installation 11 Commissioning and maintenance The top of the casing is hooked behind a locking edge and is locked behind the door on the front of the casing with a screw After removing this screw the casing must be lifted atthe bottom by which means itis released from the locking edge Then the casing can be removed forward With the S HR settings such as burner pressure and adjustment of the air quantity are unnecessary due to the fact that the unit operates with a so called zero pressure control By this means the correct gas quantity is controlled by the suction operation of the fan The fine adjustment w
36. ns of the adjustment screw on the gas block measuring point for CO figure 14 0 adjust the CO percentage according to table 11 The CO percentage can be adjusted by means of the adjustment screw according to figure 15 figure 13 adjustment screw zero pressure control 11 3 Checking the CO Epo o The CO percentage is factory set This can be checked by means of the following actions put the unit into operation by means of the service chapter as described in chapter 11 2 adjustment screw figure 15 STREBEL SUPER HR amp Installation instructions S HR series page 21 11 4 Maintenance Ifitis necessary to clean the unit the following actions to the following components must be carried out The air unit Dirt which is sucked in by the air supply pipe will end up inthe bottom ofthe air box This dirt can be cleaned with a cloth with a simple non abrasive cleaning agent Do not use an abrasive agent for cleaning this causes disturbing scratches in the air box The burner ceramic bricks and heat exchanger
37. nstructions S HR series page 25 14 Example diagrams for connecting the unit 14 1 Radiator installation without thermostat valves 5 gt lt DI V 1G a connecting of the unit to a radiator installation without thermostat valves figure 18 1 STREBEL S HR unit 2 expansion tank 3 outside sensor ARV1205U 4 drain points 5 Brain thermostat AA1RT15G Installation instructions S HR series page 26 STREBEL gol 14 2 radiator installation with thermostat valves only DH ax connecting of the unit to a radiator installation with thermostat valves only figure 19 Qu STREBEL S HR unit expansion tank outside sensor ARV1205U drain points Brain thermostat AA1RT15G by pass OORUN tra thermostatic radiator valve STREBEL Installation instructions S HR series page 27 SUPER HR amp 14 3 radiator installation with an under floor heating zone 6 E be OOGG x 9 connecting of the unit to a radiator zone and an
38. otwater Supply i rtt nt E enaa A SEE Ran 16 16 10 Switching off the 20 11 Commissioning and maintenance nnns 20 11 1 Checking for contamination eee eem rennen 20 11 2 Checking of the zero pressure 20 11 3 Checking the Ge er d ot edet citet christe ta et 21 11 4 2 2 0000000 0 I 22 13 5 Further 22 11 6 The frequency of maintenance 22 12 222 22 eter c tenore na Le te RR 23 13 Diagram showing various parts of the 24 14 Example diagrams for connecting the unit 26 14 1 Radiator installation without thermostat valves 26 14 2 radiator installation with thermostat valves only 27 14 3 radiator installation with an under floor heating zone 28 14 4 radiator installation and an independent underfloor heating zone 29 14 5 two
39. ply plastic can be chosen If a plastic discharge system is installed the unit has to be equipped with a flue gas thermostat This flue gas thermostat is available from STREBEL LTD With the flue gas discharge system and air supply system the following is meant the flue gas discharge pipe the air supply pipe through the roof kit or wall terminal The maximum stated pipe length in metres is for both the supply as well as the exhaust system and is the distance between the unit and the roof or wall terminal type of unit maximum pipe maximum pipe length in metres with length in metres with a diameter of 80 mm a diameter of 90 mm S HR 15 30 40 S HR 24 24T 25 40 S HR 35 35T 18 36 S HR 51 51T 10 20 S HR 60 6 13 When using bends in the supply or exhaust system the length mentioned below this corresponds with the resistance of the bend has to be added to the pipe length Example S HR 24 with 10 metres exhaust duct 0 80 mm and 2 x 90 bends This means 10 metres 2 x 1 25 metre 12 5 metre bend 90 1 25 1 5 bend 45 1 1 25 table 5 length supply and exhaust system Forfurther information regarding the supply range ofthe exhaust and supply system please contact STREBEL LTD supply and exhaust system figure 9 Theflue gas exhaustand the air supply installation must be installed in accordance with British Standards The exhaust
40. ration 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 During 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 ror mm gu mim miu uu 86 Error 00 Poor flame
41. re control The zero pressure control is set at the factory This can be checked by means of the following action make sure that the unit 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 18 selectthe manual fan adjustment with burner action Step by means of the Step key which will indicate that the manual operation is off 58 Installation instructions S HR series page 20 STREBEL uper HR Belo connect the digital pressure gauge hose to the uppermost measuring nipple of the gas block according to figure 13 activate the manual control by briefly pressing the key take the fan to minimum load by means ofthe key after which the measured pressure difference must uon place the lance of the CO 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 pressing this key again the text is shown which means that the selection is off be between 0 and 4 Pa ending the manual selection is done by pressing the key until the minimum load is displayed After pressing this key again the text is shown which means that the manual selection is off Ifitis determined thatthe zero pressure control deviates too much then it can be corrected by mea
42. rfloor heating pipes no claims can be made against the guarantee conditions 4 4 Gas pipe The unit pipe is equipped with a female thread into which the tail piece of the gas valve can be screwed The Gas Safety Installation and Use Regulations 1994 It is the law that all gas appliances are installed by registered contractors in accordance with the above regulations Failure to install appliances correctly could lead to prosecution It is in your own interest and that of safety to ensure that the law is complied with For good operation of the unit it is necessary that the pre pressure of the unit is higher than 20 mbar Make sure that the gas pipe work does not contain dirt particularly with new pipes 4 5 Hot water supply S HR T The unit pipes can be connected to the installation by means of compression fittings The unitis provided with an inlet combination and safety valve set at 8 bar Together with the condensation discharge and the discharge of the central heating safety valve 3 bar this is connected to one waste connection pipe ui 9 figure 8 inlet combination and safety valve A flow regulation valve is fitted in the cold water pipe The flow regulation valve provides that a quantity of water is supplied which has a guaranteed outlet temperature of 60 C assuming a cold water temperature of 10 C
43. s which are not supplied by STREBEL the supplier concerned should be contacted A The connections of the Brain Interface and the wiring of the three way valve with the calorifier sensor are only applicable if they are installed in the Control Tower Connection block in the Control Tower 230 V 230 V 230 V 230 V Calorifier connection Outside Brain Room External 24 V Power Supply External Pump eet 9 three way valve OD sensor therm safety 100 mA IN L IN INIL On Off contact S3 24 25 26 5 SEP o PET lt g x mu 5 9 9 ot ot S o E 9 2 c E a a a 2239 t Tw MS n gt 9 5 Ga 9 uo Dom gt Et gt gt Eoo o cx oS oS gt gt o te 2 5 et et e e oso N N N 560 Installation instructions S HR series page 12 STREBEL super HR Belo LL 6 Ae dsiq Hs Jeyio eo juepiseJ uou YH S JO 1 HH S
44. s the heat requirement of the central heating installation or the hot water supply As a result the unit will adjust its capacity to the installation and will switch on less often which means that the unit will operate longer and at a low level It is possible that the unit will only have to switch on once an hour In this case the aim is to obtain maximum comfort and efficiency In order to be able to anticipate installation noises the unit has a so called gradient control After the unit goes into operation this control provides a uniform increase of power instead of immediately burning at full power When the installation does require full power the control will adjust as required By this means a uniform increase of the water temperature is effected If an outside sensor is connected the control can operate weather dependent This means that the control measures the outside temperature and the flow water temperature On the basis of this data the control calculates the optimal flow water temperature in the installation The S HR T combination unit provides a hot water supply by means of a high output calorifier fitted on the right hand side of the unit An adjustable thermostatic mixing valve is fitted which provides a constant hot water temperature 60 C factory setting 2 Scope of the delivery The unit is supplied ready for use The supply kit is composed as follows Unit with casing Automatic vent inside the unit
45. ting water can be released The unit has a self adjusting and self protecting control system for the load and the pump capacity By this means the temperature difference between the supply and return water is checked The circulation pump will be able to supply the given water displacement with an installation resistance of up to 20 kPa for this see table 3 type of unit water flow rate permissible AT 20 C installation resistance l min mbar S HR 15 9 9 600 35 350 S HR 24 24T 15 1 980 25 250 S HR 35 35T 22 1 1324 20 200 S HR 51 51 32 1 1929 20 200 S HR 60 37 9 2271 12 120 table 3 available water flow at full load 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 supply and return wa ter has been obtained If after this the temperature difference remains too much then the unit will switch itself off and wait until an acceptable temperature has arisen H m 2 5 15 amit 2 graph 1 pump index lines If an unacceptable temperature is detected then the control will repeatedly try to achieve water flow and if this does not work then the unit will switch off The S HR 60 unit has a circulation pump which has a residual suction head for the installation of 12 kPa This means thatthe unit
46. tioning of the unit it is necessary for the expansion tank to be connected to the expansion tank pipe of the unit The expansion tank which is used should be geared to the water content of the installation The pre pressure depends on the installation height above the mounted expansion tank installation height above the expansion vessel pre pressure of the expansion vessel 5m 0 5 bar 10m 1 0 bar 15m 1 5 bar choice of expansion tank table 4 Installation instructions S HR series page 8 STREBEL super HR Bei The STREBEL S HR24 and S HR35 units can be provided with an expansion tank module By this means the external expansion tank is cancelled This expansion tank module is placed behind the S HR unit by which means the expansion tank is not noticeable If the S HR unit is provided with a STREBEL Comfort calorifier the overall depth will be equal The content of the two expansion tanks is 20 litres The pre pressure is 1 bar The expansion tank module can be supplied with the necessary pipes to connect with the S HR unit The connecting pipes for the installation correspond with those of the unit and have the same centre to centre distance to the wall When checking the expansion tanks these are accessible via the left right and upper sides From these sides the tanks are also removable and the unit does not have to be dismantled 660 105 front v
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