Operating instructions
Contents
1. A heating system in standby mode saves energy A modern weather compensated or room temperature dependent heating system control unit ensures with automatic night setback and thermostatic valves that the system only operates when heat is required saving money for the rest of the time Equip your heating system with a weather compensated heating controller from the Wolf range of accessories Your heating contractor will be happy to advise you about optimum adjustments In conjunction with the Wolf control accessories use the night setback function to match the energy level to the actual demand period Use the optional summer mode adjustment Never overheat your home Adjust the room temperature as accurately as possible This leaves occupants comfortable and energy is not wasted on providing a heating output that is not required by anyone Differentiate between the optimum temperature for different rooms such as living rooms and bedrooms A room temperature which is one degree higher than necessary represents an additional energy consumption of approx 6 Use room thermostats to match the room temperature to the actual use of the room In the room where you have installed a room temperature sensor open the thermostatic valve fully This enables you to achieve optimum control characteristics for your heating system Ensure adequate air circulation Air must be able to freely circulate near the radiators and the r2. Do not use or store explosive and flammable materials e g petrol Caution ignoring this rule may lead to a risk of fire as well as a risk A thinners paints paper etc inside the boiler room Do not use for cleaning polishing etc or store spravs solvents chlorinated cleaning agents paints lacquer adhesives salts etc on or in the vicinitv of the gas fired boiler Under unfavourable conditions these materials mav lead to corrosion in the boiler and the flue gas svstem Ducted vents routed through a roof mav also contain corrosive vapours Caution ignoring this rule may lead to a risk of fire as well as a risk of A destruction poisoning or explosion Energy and therefore operating costs can be effectively saved through low DHW temperatures Furthermore scaling up of the flat plate heat exchanger in the gas combi boiler version can be prevented If the water s hardness is greater than 15 d H the cylinder water temperature should be limited to 55 C 3062348 0511 W 4 Care Maintenance 3062348_0511 Installation information Maintenance information Clean the casing with a damp cloth and a mild cleaning agent which must not contain chlorine Then dry immediately afterwards The gas fired boiler components may only be cleaned by a heating contractor A Caution only the heating contractor has the required knowledge and expertise According to the regional regulations the user is obliged
3. WOLF Operating instructions as combi boilers and gas boilers with integrated cylinder connection CGU 2 18 24 CGG 2 18 24 CGU 2K 18 24 CGG 2K 18 24 Part no 3062348_0511 Subject to modifications WI JEF Enclosed documents General notes Tvpe plate Example Index IS Page General information wissiet i e a f a FEI 2 Safety INSIUCIONS is sisa a p KI PEAR taa ED 3 Installation information Maintenance information ss eenneennnnnnenzza 4 5 Hvdraulic conne tions i ssssii ia pe a a eapi a aa 6 Control unit operation rei 7 Information for energy efficient operation en nee netta 8 9 Faults Fault CodeS si sit i ia i g a p f ST Midget 9 These operating instructions are for the attention of the svstem user The installation and maintenance instructions are documents intended for the contractor Gas is an environmentaliv friendiv fuel which does not represent anv danger unless handled with gross negligence Your gas fired boiler is a high quality product which incorporates the latest safety technology A These safetv instructions should protect vou from potential risks The tvpe plate is located on the inside of the boiler casing and contains the following information O6SLOSPET 9Lb7Z 198 rw HASNI MANI OB8 96PTZI 91 971980 90 C 051 3 bar 230V 50 Hz 90 W IPX4D Die Gastherme darf nur in einem Raum 08 8 0 18 0 kW 2E G20 20 m
4. to arrange regular mainte nance of the system in order to ensure the reliable and safe function of the gas fired boiler Your boiler should be serviced annually Maintenance is explicitly detailed in the installation and maintenance instructions Isolate the boiler power supply before any maintenance work is carried out After completing maintenance and before the gas fired boiler is restarted ensure that all components that have been removed for maintenance have been properly refitted We recommend you arrange a maintenance contract with an approved heating con tractor Please keep your operating instructions safe in an easily accessible place near your gas fired boiler W 4 Please note before commissioning Filling the system Opening the shut off equipment Shut off valves accessory Maintenance valve Heating flow Close Q Open Checking the heating water Heating flow incl fill and drain connection Hvdraulic connections The heating system must be completely filled with water If necessary top up with water When filling the heating system the shut off valves must be open The system pressure must be 1 5 to 2 5 bar The connection between the tap water and heating water required for filling must be removed after the fill has been completed Otherwise there is a risk that your tap water will be contaminated by heating water A The svstem mav overheat if the boiler is operated without wa
5. bar 8 8 a CE 0085 1234567890 Herstelinummer 4 Umlauf Wasserheizer Warmebelastungsbereich 8 8 20 2 kW Wasserinhalt Heizw rmetauscher Lesen Sie die Montage bzw Betriebsan leitung bevor Sie die Gastherme in Belrieb Max Betriebsdruck Heizkreis installiert werden der die ma amp geblichen Elektrische Leistungsaufnahme Beliftungsanforderungen erf llt Schutzart Warmeleistungsbereich Max Vorlauftemperatur NetzanschluB Wot GmbH Marburg 3062348 0511 W 74 A SAFETV INSTRUCTIONS If vou smell gas If vou smell flue gas When changing a fuse Frost protection Balanced flue svstem oniv CGG 2 3062348 0511 Safetv instrucions Never turn on a light switch Never operate electrical switches Keep naked flames away Close the gas shut off valve Open windows and doors Inform your gas supply utility use a telephone outside the danger area A Caution risk of poisoning suffocation and explosion Shut the system down Open windows and doors Notify your local contractor A Caution risk of poisoning Isolate the boiler from the mains supply prior to changing a fuse The mains terminals of the boiler are live even when the ON OFF switch has been switched OFF A Caution risk of electrocution As long as the boiler is switched ON it will be automatically protected against frost The u
6. nal energy When the hardness of the water is over 15 d H 2 5 molm the DHW temperature may be set to a maximum of 55 C This corresponds without accessory controller to a setting of 5 6 on the DHW temperature selector with gas combi boilers or 6 7 on gas boilers with cylinders The actual temperature then falls between 50 C and 55 C Sensible handling of DHW Showering consumes only approx 1 3 of the water volume required for a bath Immediately repair any dripping taps If the illuminated ring of the status indicator flashes red where possible read the fault code of the connected controller and note the code The boiler can be restarted by pressing the reset button In case of repeated faults switch OFF the boiler and notify your heating contractor Gas boilers from the CGU 2 series are equipped with an electronic flue gas monitor If flue gas is escaping at the draught hood this shuts down the gas boiler The boiler restarts automatically after approx 15 mins A Caution risk of damage poisoning and suffocation WI JEF Notes 10 3062348 0511 WI JEF 3062348 0511 Notes
7. oom temperature sensors otherwise the heating system will lose effectiveness Badly positioned long curtains or furniture swallow up to 20 of energy 3062348 0511 WI JEF DHW mode Faults Fault codes 3062348 0511 Information for energv efficient operation Keep the heat inside the room at night too At night closing shutters and drawing curtains noticeably reduces heat loss via the window areas Insulating the radiator recesses and light coloured paintwork can reduce your heating bills by up to 4 Airtight joints at windows and doors also help to keep energy inside the room Minimise energy loss through sensible ventilation Ventilating for hours loses heat stored in walls and objects As a result the ambient climate will only become comfortable again after prolonged heating Short and thorough airing is more effective and pleasant Venting the radiators Regularly vent the radiators in every room This safeguards the perfect function of radiators and thermostats particularly in the upper apartments of apartment blocks The radiator will then be able to respond quickly to changing heat demands Intelligent use of DHW circulation pumps Always control DHW circulation pumps via time switches Program these in accordance with your DHW demand patterns The optimum DHW temperature Only ever set the DHW temperature or that of the cylinder to the temperature you really require Any additional heating uses additio
8. r temperature selector 2 40 C 8 80 C When the hardness of the water is over 15 d H 2 5 molm the cylinder water temperature may be set to a maximum of 55 C This corresponds without accessory controller to a setting of 5 6 on the DHW temperature selector with gas combi boilers or 6 7 on gas boilers with cylinders Note The BM programming module can also be integrated into the control unit of gas fired boilers That means that all adjustments are made at the control unit of the gas fired boiler For installation and operation see BM programming module operating instructions 3062348 0511 7 W JEF Heating mode Information for energv efficient operation Saving energv with modern heating technologv A Wolf boiler saves vou hard cash With modern condensing technology energy is used efficiently for heating Use as little electrical energy as possible Operate the system with the heating pump at the lowest possible level Regular heating system maintenance pays for itself A contaminated burner or poorly adjusted gas boiler can reduce the heating system efficiency Regular heating system maintenance through your local contractor quickly pays for itself Heating at the lowest energy level Operate your heating system where possible with a return temperature of less than 45 C to achieve the highest possible energy utilisation A heating system control unit also regulates your heating costs
9. se of anti freeze is not permissible Completely drain the boiler if necessary A Caution risk of water damage and faulty function through freezing With low outside temperatures the water vapour contained in the flue gas may condense and freeze on the balanced flue This ice may fall from the roof causing injury or material losses Prevent ice from falling by taking on site measures e g the installation of a snow catcher grille A Caution risk of injury W JEF Positioning modifications Corrosion protection Water hardness Installation information Maintenance information Your gas fired boiler should only be installed and modified by an approved heating contractor as only they have the essential knowledge to carry out such work Gas components must not be modified Never close or restrict the ventilation apertures in doors or walls when operating the boiler in the open flue mode only start the boiler when the flue has been fully installed Only operate the boiler in balanced flue mode after the balanced flue system has been fully installed and the wind protector is not covered up The gas fired boiler may only be installed in rooms that are protected from frost Never isolate the boiler from the power supply when outside temperatures fall below freezing as otherwise there is a risk of the system freezing up Do not modify the drain or the safety valve of destruction poisoning or explosion
10. ter Inhibitors are not permissible Otherwise there is a risk of damage to the boiler The shut off valves for heating flow and heating return must be open Fill and drain connection Maintenance valve Heating return Close lt b Open Heating return incl fill and drain connection Gas ball valve Open Push and turn anti clockwise Close Turn clockwise Regularly check the system pressure The pressure gauge must indicate between 1 5 and 2 5 bar Your heating contractor will explain how to top up your system Do not supplement your heating water with additives otherwise components may be damaged 3062348 0511 WOOF Control unit operation Control unit operation ON OFF switch Reset button Thermometer DHW temperature Pressure selector gauge Illuminated Heating water signal ring temperature selector llumin ignal rin i tal ated signa gas status Illuminated signal ring Explanation indicator Standby power supply ON burner OFF Flashing green e g summer mode Constant green light Winter mode Pump running burner OFF Flashing yellow Emissions test mode Constant yellow light Burner operates flame ON Flashing red Summer mode heating OFF Winter mode position 2 to 8 Emissions test mode illuminated ring flashes yellow DHW temperature selector 1 15 C 9 65 C Gas boiler with cylinder boiler 1 40 C 9 65 C Gas combi boiler Heating wate
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