Installation and Operating instructions
Contents
1. 23 m ON DIP ON eBUS d MO scone Dip 1 4 2voc T IE ele 24 BUS interface setting DRT Wolf boilers are equipped either with an eBUS or a SCOM interface for control accessories The interface can be selected with DIP switch 4 at the back of the DRT For boilers with eBUS interface the BUS terminals and are marked with eBUS Push the DIP switch 4 into the ON position Switches 1 to 3 remain OFF if only one accessory controller is connected For boilers with SCOM interface the BUS terminals and are marked in accordance with connection diagrams with Wolf accessories Push switches 1 to 4 into the OFF position All accessory controllers BUS users must be set to the same boiler interface A correctly adjusted BUS address and with that the communication between all users is indicated at every controllers approx 1 minute later BUS connection active om g gt o IF 8 The electrical connection must only be carried out by a qualified electrician Do not route these cables alongside mains power cables Wire the DRT with a 2 core cable minimum cross section 0 5 mm to the gas fired boiler Subject to boiler terminal strip select one of the adjacent wiring diagrams DRT base Telecontrol contact 0 for eBUS and SCOM 1 2 6 599999 OO OO O0 Reposition the DRT onto its base and click2. 1 DHW start up time red indicator illuminates 1 DHW start up time change 1 DHW start up time save red indicator extinguishes 1 DHW shutdown time call up 1 DHW shutdown time red indicator illuminates 1 DHW shutdown time change 1 DHW shutdown time save red indicator extinguishes Programming level DHW program DRT 2 DHW start up time call up 2 9 DHW shutdown time save red indicator extinguishes CQ MONDAY A TUESDAY 1727324 280807 3I 1 DHW start up time call up The setting example shows time program 3 All other time programs can be changed as above The set DHW program applies to all boilers with DHW cylinder for cylinder heating and for combi boilers for DHW QuickStart The required water temperature is adjusted at the boiler The adjusted central heating and DHW programs are saved to non volatile memory If the power reserve minimum 10 hours expires only the time and day of the week need to be reset IF Displays Reset Programming level displays DRT Access to standard settings only requires opening the front flap Select DISPLAYS withA orW For access to this level Select individual parameters withA andy Parameter Display actual value Set value Domestic hot water Q Q Flow temperature Heating circuit Q Q Fan speed r p m or modulation F SPEED 25 Burne
3. aT Wolf GmbH Postfach 1380 84048 Mainburg Tel 49 8751 74 0 Fax 49 8751 741600 Internet www wolf heiztechnik de
4. g 8 5 Max set flow 20 90 Q A or V Cq temperature g g Cycle block Ss S 0 30 Q A or Soe eos 5 Input 1 5 s g 0 5 Q A or VQ o 5 8 S Output 1 2 0 9 Q A or VQ Cylinder hysteresis mi 1 EN Q A YQ Maximum heat up time heat up optimisation Required heat up time Room sensor matching Parameter 18 Max limit for parameter 28 Parameter 25 Pasteurisation function only eBUS Q A or V Q The heat up optimisation determines within atleast six hours setback time the optimum timing advanced timing when heating should commence so that the required room temperature has already been achieved at the selected time Parameter M OPEN TIME provides the maximum advance timing Heat up optimisation will not take place if 0 has been entered for maximum advance timing If the maximum advance timing is not 0 the duration of advance timing will be calculated at the time of the maximum advance timing prior to the programmed start up time This value shows the heat up time which was last required Display only The current display can be changed by 5 to match the room temperature display to the installation conditions or other thermometers The adjusted display value will be applied to all calculations of relevant functions Parameter 18 will then be displayed if par 28 1 or 2 This parameter will then limit the set flow tem
5. 120 Temperature C 25 Specification Parameter setup report DRT Specification Supply voltage 18 VDC 15 Power consumption max 1 VA Protection according to DIN 60529 IP30 Protection class according to VDE 0100 max 24 V Time switch power back up min 10 h Permissible ambient temp operation 0 to 50 Permissible ambient temp storage 30 to 60 Communication and power supply via 2 core cable to the gas fired boiler cross section 0 5 mm Parameter setup report Parameter Setting options Factory setting Individual settings Economy temperature 5 30 C night setback Language selection D GB 1 NL ES CZ PL HU Max heat up time Room sensor matching 26 Setup report switching times DRT Preset time programs Time program 1 Heating Mo Su DHW Mo Su Time program 2 Heating Mo Fr and 16 00 22 00 Sa Su DHW Mo Fr 15 00 22 00 Sa Su Time program 3 Heating Mo Tu We Th Fr Sa Su DHW Mo Tu We Th Fr Sa Su Time program 4 Heating Mo Tu We Th Fr Sa Su DHW Mo Tu We Th Fr Sa Su Setting report for individual adjustments ___ PON Time program 1 Heating Mo Su DHW Mo Su Time program 2 Heating DHW Time program 3 Heating E Time program 4 Heating
6. Fault display FAULT 14 A Auxiliary functions DRT The DRT will automatically change over to summer mode if the room temperature rises 1 K above the temperature selected for heating mode The system automatically reverts to winter mode when the room temperature falls below the set room temperature A frost protection function for the entire heating system has been integrated into the room thermostat The burner and heating circuit pump are switched ON at 5 C room temperature Burner and heating circuit pump heating circuit pump with without run on according to settings at the gas fired boiler are switched OFF again at 6 C room temperature All adjustable parameters will be reset to their factory set defaults with Partial reset Exceptions are parameters BUS ID Language selection and switching times Open the front flap and push the reset button simultaneously withQ using a ballpoint pen or similar instrument Release the reset button and hold Cqdown until the display shows STANDARD SETTINGS All adjustable parameters and switching times will be reset to their factory set defaults with Complete reset Open the front flap and push the reset button simultaneously with Ausing a ballpoint pen or similar instrument Release the reset button and hold downcgand Auntil the display shows STANDARD SETTINGS Fault 81 occurs when a parameter has an invalid value The incorrect parameter is reset to its factory
7. into place When refitting the housing ensure that the contact pins on the thermostat are not bent Electrical connection DRT Connection version a 12 5 6 SSSSSS terminal strip terminal strip Boiler terminal strip Boiler terminal strip Control level DRT Program selection Program selector key Economy key Party key Temperature selection heating mode Important This must be set to gas fired boilers with program selector Operating Display Central heating DHW DHW mode prog select boiler combi boiler Standby I Central heating OFF Oylinder heating OFF DHW QuickStart OFF Frost protection Central heating OFF Cylinder heating according to DHW QuickStart acc Frost protection DHW program to DHW program 1 Economy mode Cylinder heating according to DHW program Heating mode Cylinder heating according to DHW program Heating or economy mode Cylinder heating according to according to heating program DHW program Heating mode or central Cylinder heating according to G m heating OFF according to DHW program heating program 1 Only for equipment with DHW QuickStart Function display f Connection to the gas fired boiler OK Heating circuit pump ON Heating mode Cylinder heating or DHW draw off ON Iz Burner ON IF Temperature selection heating mode Economy key Party
8. key Control level DRT Setting the required room temperature for heating mode This setting only applies to heating mode not to economy mode Turning the selector changes the display from current room temperature to set room temperature Then you can change the desired room temperature for heating mode If no change is made within 2 s the display will again show the current room temperature If you press Lr four zeros will appear in the display further pressing will set the control unit for one hour to economy mode irrespective of the heating program selected If the boiler is already operating in economy mode this mode will be extended by a further hour Pressing again will extend the economy mode by a further hour pressing will reduce the current operation by one hour The indicator will return to 0 if more than 24 hours are entered The room temperature will again be displayed 5 s after the last input The previously selected economy mode can be cancelled again by pressing Y The display will show four zeros after pressing Y The control unit will select one hour heating mode if this key is pressed again independent of the heating program selection If the boiler is already operating in heating mode this mode will be extended by a further hour Pressing again will extend the heating mode by a further hour pressing U will reduce the current operation by an hour The indicator will return to 0 if more than 24 h
9. program Mo Su Mo Su 5 00 22 00 Time prog 2 Heating DHW Mo Fr 6 00 8 00 and 16 00 22 00 Simple day program Sa Su 7 00 23 00 Mo Fr and Sa Su Mo Fr 5 00 8 00 and 15 00 22 00 Sa Su 6 00 23 00 Time prog 3 Heating DHW Tu We Th Fr Sa Su 8 00 23 00 Individual times can be set for every day Mo Tu We Th Fr Sa Su 7 00 23 00 Time prog 4 Heating DHW Mo Tu We Th Fr 7 00 16 00 Individual times can be set Sa Su for every day Mo Tu We Th Fr 6 00 16 00 Sa Su temperature Language selection Heating DHW once gt A ixmm Summer winter Programming level standard settings DRT During economy mode the temperature selected in the standard setting ECON TEMP applies not the temperature selected at the rotary selector The set economy temperature is only an approximate value when the room influence 0 The following languages may be selected German French English Italian Dutch Spanish Czech Slovakian Polish Hungarian If DHW is required outside the period where DHW heating is enabled the DHW cylinder can be heated to the set temperature by means of function 1 x DHW Pressing Wsimultaneously with the front flap open either activates or deactivates this function Function 1 x DHW will be deactivated automatically after on
10. setting and a fault message will be displayed The fault message can be reset with Processor reset The processor will be restarted with Processor reset Open the front flap and press the reset button using a ballpoint pen or similar instrument The DRT display will additionally show symbol j if emissions test mode has been selected at the boiler program selector Any boiler fault will be indicated by a fault code number which will flash in the boiler display The fault signal will be transferred to the connected digital weather compensated DRT temperature controller The DRT display will show the word FAULT as well as the fault code number In addition the warning symbol N will flash in the display 23 Fault codes DRT Fault codes In case of faults the following codes will assist in locating their cause Fault Excess temperature high limit safety cut out No flame established Flame failure during operation STW excess temperature STBA excess temperature Flue gas damper does not activate Flame pretence Heating water temperature sensor faulty Flue gas temperature sensor faulty DHW sensor faulty Outside temperature sensor at the control unit fault Return sensor faulty The modulation current is outside its set range Fault gas valve circuit V2 Fault gas valve circuit V1 Lack of air Differential pressure switch fault Gas fan fault Gas fan fault CRC fault boiler CRC fault burner Faul
11. WOIF Installation and Operating instructions Digital room temperature dependent controller DRT for gas fired boilers Wolf GmbH Postfach 1380 84048 Mainburg Tel 49 8751 74 0 Fax 49 8751 741600 Internet www wolf heiztechnik de Part no 30 61 346 Subject to technical modifications 6 6701 606 05 05 DRT Index Page SUMMARY OF fUblctiolis 3 Terminology Standards and regulations 4 ASSOMDIY BUS interface setting Electrical connection Control level P Program 8 Function display aso csetera co mea e Rex REC ng ae esa tee FOX Pee DO CEOs 8 Temperature selection heating mode sesssesssssssssssessesee nennen entente nnne ECONOMY nennen Party key Programming 1 1 M DRT CONTOS posse c Summary of functions Standard settings 22a EHE TING tines irre Day TammeptOgr AN ceri re fecta Een te e elek Economy temperature Language sseleetiOni a e ree e Qa o n Rd o D OL D OX Heating DAW rein ben eoa ete n Summer winter Heating program Domestic h
12. ameter 1 A A A Q CQ Q CQ i Contractor Standard settings gt Heating program DHW program 25 Displays level Close front flap Operating level 11 Programming level standard settings DRT Standard settings All adjustable parameters as well as four time switch programs are set atthe factory and saved to non volatile memory After commissioning only the time and day of the week must be adjusted on site Access to standard settings only requires opening the front flap For access to this level press Q Select individual parameters with A Parameter Display Factory Settings Change setting range Time 10 00 10 00 00 00 24 00 Q A VY Day Monday Monday Sunday Q A or V CQg Time program IME PROG 01 1 1 4 Q A YQ Economy CONOMY 12 0 12 5 30 C Q A or W Q temperature au gt SetDHW 60 15 65 Cor Q A or YQ temperature 1 0 40 63 Language D F GB I ES Q A or selection F6Bl CZ SK PL HU 1 Only with eBUS interface this leaves the DHW thermostat at the boiler disabled IF Time program Time prog 1 Heating DHW Programming level standard settings DRT The digital temperature control thermostat has four factory set time programs for heating and DHW mode For switching times see the following table All time programs can be modified and saved Mo Su 6 00 22 00 Day
13. e hour To select the current summer winter time adjust the relevant time as described on page 12 not required when connecting a radio clock module IF Programming level heating program DRT Modifying switching times You can individually modify the switching times of the time programs 1 4 selected under the standard setting TIME PROG in the heating program Three ON and OFF times are available for the individual days displayed Always enter ON and OFF times as pairs heating program Setting example r EN 3 2073 4 526 7 01 8 00 Access to standard settings only requires opening the front Select HEAT PROG with For access to this level press keyQ Wc 02 Display acc to time program here for example time program 3 1 heating mode start up time call up 1 heating mode start up time red indicator illuminates 1 heating mode start up time change 1 heating mode start up time save red indicator extinguishes 1 heating mode shutdown time call up 1 heating mode shutdown time red indicator illuminates 1 heating mode shutdown time change 1 heating mode shutdown time save red indicator extinguishes Note Programming level heating program DRT 2 9 h
14. eating Day 1 7 Su and economy mode Room temperature Time Function display Heating mode economy mode display Program selection display Terminology Standards and regulations Terminology Standards and regulations DRT Heating water temperature The heating water temperature is the radiator flow temperature The higher the heating water temperature the higher the heat transfer to radiators Boiler Gas fired boiler which can be combined with a DHW cylinder Combi boiler Gas fired boiler with an instantaneous water heater and DHW QuickStart Cylinder heating Heating up the DHW cylinder DHW QuickStart The heating water in the boiler will be held at a certain temperature during summer mode to be able to supply hot water as rapidly as possible from the instantaneous water heater ofthe combi boiler The DHW time program switches this function ON and OFF during summer mode Heating program Subject to program selection the heating time program switches the gas fired boiler from heating to economy mode or from heating mode to heating OFF and vice versa Domestic hot water program Ina combi boiler the DHW time program controls the DHW QuickStart and for a boiler with a DHW cylinder the cylinder heating ON and OFF Winter mode Central heating and DHW according to the heating and DHW time program Summer mode Central heating OFF DHW according t
15. eating mode start up time call up 3 heating mode shutdown time save red indicator extinguishes CQ MONDAY A TUESDAY 17273 Hox 3I 1 heating mode start up time call up The setting example shows time program 3 All other time programs can be changed as above In case of block formation a time input beyond midnight must be made according to the following example Example In time program 1 week program central heating should take place the following day from 16 00 03 00 h For this set the following times 1 Start up time Heating mode 00 00 1 Shutdown time Heating mode 03 00 2 Start up time Heating mode 16 00 29 Shutdown time Heating mode 24 00 IF Modifying switching times DHW program Setting example r Programming level DHW program DRT You can individually modify the switching times of the time programs 1 4 selected under the standard setting TIME PROG in the DHW program Two ON and OFF times are available for the individual days displayed Access to standard settings only requires opening the front flap Select DHW PROG withA For access to this level pressQ 10 TORTE ESTs 1 00 Display acc to time program here for example time program 3 1 DHW start up time call up
16. o the DHW time program Heating mode economy mode In winter mode two room temperatures can be selected One for central heating and one for economy mode when the room temperature will be setback to the economy temperature The heating program changes over between heating and economy mode In gas fired combi boilers the DRT digital room temperature dependent controller complies with the following Directives Gas Equipment Directive Low Voltage Directive EMC Directive Assembly DRT Assembly Install the DRT on an internal wall at a height of approx 1 5 m Installthe DRT in aliving room which is representative of the entire living space The DRT must not be subject to draughts or radiated heat The DRT must not be obstructed by furniture or curtains n this room all radiator valves must be fully opened Remove the base from the DRT Fixing holes Connection eBUS or SCOM interface Plug to the top part Secure the thermostat base on the flush mounting box 255 mm or with the plugs supplied directly to the wall BUS interface setting eBUS or SCOM Connection to Wolf boilers with eBUS interface CGB CGS TGC vv DRT dH ON DIP ON eBUS jeu 123 4 OFF SCOM Dip 1 4 Connection to Wolf boilers with SCOM interface TGU TGG GU 2 GG 2 TGB 11 20 40 60 GB 20 S Eu co BAV AJ TEE
17. ordance with an automatic screed drying program If this function has been enabled setting 1 or 2 it can be terminated by resetting par 28 to 0 Par 28 0 no effect Par 28 1 mixer circuit with a constant temperature The mixer circuit is heated to the set flow temperature The flow temperature can be adjusted with the heating operation temperature selector between 15 and TV max parameter 18 Par 28 2 screed drying function For the first two days the set flow temperature will remain constant at 25 It will then be automatically raised every day at 0 00 h by 5 up steps to TV max par 18 That temperature will then be held for two days Subsequently the flow temperature is automatically reduced again in steps of 5 per day down to 25 The program sequence is terminated after a further two days 55 50 45 40 35 30 25 20 Flow temperature 123456728 9 10 11 12 13 14 15 16 17 Screed drying time days Please note Agree the time sequence and the maximum flow temperature with the screed contractor otherwise the screed may be damaged particularly through cracking Automatic summer and winter changeover Room temperature dependent frost protection in summer mode artial RESET Reset button Complete RESET Reset button Processor RESET Reset button Emissions test mode
18. ot water program Heating secedere t Auxiliary functions eren Automatic summer winter changeover Room temperature dependent frost protection a Ima Complete RES EM oat da teet ndn idee eu dede er err mte IE Processor RESET 5 Emissions testfmode rentre iiec eere ere cosi gneve 23 Fault display netter eene tree rer terae 23 Fault codes Sensor resistances Specification di Parameter setup report nnusnsssnnennnennensnnennnennensnnennnennennnnennnennensnnennnennennnernnnnnnensnernnnennensnnrnnnennennen 26 Setup report SWITCHING mes 27 Safety instructions The following symbols are used in conjunction with these important instructions concerning personal safety as well as operational reliability Safety instructions are instructions with which you must comply exactly to prevent injury and material N losses This indicates technical instructions which you must NB observe to prevent material losses and boiler malfunctions Summary of functions DRT Front flap Program selector key Party key Temperature Economy ke selection y heating mode Heating program shows the set times for h
19. ours are entered The room temperature will again be displayed 5 s after the last input The previously selected heating mode can be cancelled again by pressing Note The economy and party keys have no effect on DHW heating Programming level DRT After opening the front flap the control unit changes to programming mode and the display shows STANDARD SETTINGS With the open flap the following settings can be displayed or modified DRT controls Reset button Front flap Programming keys Red indicator illuminates if the parameter can be modified Legend for the adjacent table 1 Only with eBUS interface Symbol for direct heating circuit only for eBUS Programming level summary of functions DRT Open front Q A Contractor level i Actual DHW Changing the heating switching Changing the DHW temperature Max heat up time m switching times of the umes rise set time program A A time program Actual heating heat up time water temp gj m A A Time program Fan speed Room sensor select 1 4 or modulation matching A A Economy mode Burner runtime 18 Max limit for parameter 28 1 A A Set DHW Burner starts 25 Pasteurisation temperature 1 function 1 A C M E 26 Maintenance CZ SK PL HU message A 27 Interval maint message A 28 Screed drying 1 40 par
20. perature for screed drying or a heating circuit to be operated at a constant temperature Please note Boiler shutdown par 18 DRT hysteresis factory setting 8 Take the hysteresis into account when determining the maximum screed temperature If pasteurisation has been enabled the DHW cylinder will be heated to 65 C during the first cylinder heating of the day in accordance with the Switching times program This set temperature will be maintained for one hour Parameter 25 0 Pasteur OFF Parameter 25 1 7 Pasteur once a week 1 7 Su Parameter 25 8 Pasteur daily 21 Parameter 26 Maintenance message Parameter 27 Interval until maintenance message Parameter 28 Screed drying Fig Flow temperature progress during screed drying parameter 18 50 C 22 Programming level contractor DRT If maintenance message is enabled the message MAINTENANCE will be displayed after X weeks in accordance with the setting of parameter 27 You can acknowledge this message by pressing the economy keya rr Afterwards the cycle starts again This parameter indicates the number of weeks after the expiry of which the maintenance message will be displayed If an underfloor heating system is started for the first time in new buildings the set flow temperature may as an option be controlled independent of the outside temperature a to a constant value or b to control the set flow temperature in acc
21. r runtime 10h RUNTIME x10 30 Burner starts 100 starts STARTS 00 15 Parameter Display Reset T SoS iid un Note It is recommended to note down the date of the reset in order to allocate the burner runtime or the number of burner starts e g to a particular year Heating contractor Programming level contractor DRT Access to standard settings only requires opening the front flap Select CONTRACTOR with For access to this level press Select individual parameters with and V Parameter Display Factory Settings Change setting range Required B OPEN TINE heat up time Matching MATCH ROOM 0 C 5 to 5 C Q A r V Q room temperature TEMP SENS sensor for param 28 25 Pasteurisation 25 0 0 0 8 Q A VQ function 26 Maintenance 26 0 0 0 1 Q A IT V Q message 27 Interval aj 5 52 25 100 Q A or W Q maint message Weeks 28 Screed 00 0 0 1 2 Q A or V CQ drying 40 GB parameters 40 GB Q A or YR v Hysteresis 6801 08 1 20 Q A or W Q flow temperature A Tr Upper fan T 30 100 Q A or V Q speed heating 6804 81 E22 A 2255 2558 Frost protection TEE 10 10 Q A or V CQ outside temp 6805 vs S B 2 ose Hn OD Heating circuit 250 0 1 Q A V CQ pump mode 6806 A Fan 20 Programming level contractor DRT Heating circuit pump 6807 01 5 1 30 Q A run on A
22. t in 24 V AC supply Low water indicator Return temperature gt flow temperature 25 Siphon back pressure Flue gas system back pressure EEPROM faultin DRT Incorrect address set at the DRT Internal fault control PCB If the device will not operate properly after the gas fired boiler has been reset twice or if the boiler cannot be reset inform your heating contractor of the fault code displayed If settings cannot be carried out on the DRT using program selector P gt gt set the program selector on the boiler control unit to position Fault code 15 Fault code 15 will be displayed at the DRT if no outside temperature sensor is connected or the outside temperature sensor fitted to the control PCB is faulty gt The heating circuit pump runs permanently and the DRT acts as a room controller Fault code 91 Two controllers e g DWT DRT are set to the same BUS address in systems with several controllers Correct the address settings using the DIP switches on the respective controllers 24 Sensor resistances DRT Sensor resistances Heating water sensor DHW sensor return sensor flue gas sensor emperature Resistance Temperature Resistance Resistance Temperature Resistance Q C Q C Q C Q c E ES N 20 10 0 10 20 30 40 50 60 70 80 90 100 110
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