Wolf CGG-2-18, Installation And Maintenance Instructions Manual

Page 1: ...9 8751 741600 Internet www wolf heiztechnik de Installation and maintenance instructions Wall mounted gas fired combi boilers and wall mounted gas fired boilers with integral cylinder connection CGU 2 18 24 CGG 2 18 24 CGU 2 K 18 24 CGG 2 K 18 24 Illustration Wall mounted gas fired boiler with auxiliary equipment BM ...

Page 2: ...cade mode 32 Commissioning gas connection 33 Conversion to other gas types Nozzle change 34 Setting the control unit after converting the gas type 35 Checking nozzle pressure 36 37 Resetting gas valve Setting nozzle pressure 38 Adjusting the flue lengths CGG 2 K 39 Flue gas test CGU 2 K CGG 2 K 40 Limiting the maximum output 41 Selecting the pump stage Bypass 42 43 Checking the flue gas monitoring...

Page 3: ...at poses a danger of injury or death The main supply terminals are live even when the ON OFF switch is in the OFF position Fig Terminal box Danger from electric current Fig Gas connection Escaping gas may cause poisoning or the risk of explosion Fig Ignition transformer high voltage ignition electrode combustion chamber Risk through live electrical components risk of burning through hot components...

Page 4: ...ry out repairs on parts that fulfil a safety function Use only original WOLF replacement parts or those that are equivalent and that have been approved by the manufacturer Instructing the system user The system installer must hand the operating instructions to the system user and instruct them in the operation of the system Only use propane compliant with local regulations otherwise faults may ari...

Page 5: ... 92 42 EEC Efficiency directive DIN EN Standards EN 297 EN298 EN 483 EN 625 EN 55014 2 EN 60335 1 EN 60335 2 102 EN 60529 EN 61000 3 2 EN 61000 4 3 The following regulations rules and guidelines must be observed during installation Boiler room guidelines or Building Regulations relating to the construction and installation of central boiler rooms and fuel storage facilities Technical regulations f...

Page 6: ...he risk of water and gas leaks which in turn would result in a risk of explosion and flooding Removing the rear wall of the cupboard Minimum lateral clearance between the gas fired boiler and the cupboard sides 25 mm A cutout of 410 x 550 mm is required in the cupboard top Otherwise there is a risk of suffocation and poisoning With open flue gas fired boilers the ventilation grill in the cupboard ...

Page 7: ...diverter valve Flow sensor 2 Limit thermostat Monitoring electrode Ignition electrode Heating water heat exchanger Safety valve Drain valve DHW Flow temperature sensor Flow sensor 1 Draught hood Gas burner Heating circuit strainer Cold water strainer with throughput limiter Heating circuit pump Air vent Bypass Flue gas temperature limiter HZ VL HZ RL ...

Page 8: ... way diverter valve Flow sensor 2 Limit thermostat LAF connection Monitoring electrode Ignition electrode Heating water heat exchanger Differential pressure switch Safety valve Drain valve DHW Flow temperature sensor Flow sensor 1 Flue gas collector box Gas burner Heating circuit strainer Cold water strainer with throughput limiter Heating circuit pump Air vent Bypass HZ VL HZ RL ...

Page 9: ... Bypass valve Hydro Tec system integrated components Overflow valve Flue gas temperature limiter Wolf Low NOx unit with hydro tec system plug in technology for quick installation compactly designed for low emissions high energy efficiency DHW heat exchanger and DHW flow temperature sensor only with combi boilers CGU 2 18 24 Open flue gas fired boiler with integrated cylinder connection CGU 2 K 18 ...

Page 10: ...re the bracket using the rawl plugs and screws supplied Before securing the bracket check that the rawl plugs are suitable for the wall construction Remove the casing lid of the gas fired boiler For this pivot the control unit lid down hook in the r h and l h turnbuckle undo the bottom of the casing lid and unhook at the top Hang the gas fired boiler with the hook in brace on the back of the boile...

Page 11: ... 270 420 790 694 1754 190 4 810 5 100 547 Installation dimensions of the boiler with freestanding cylinder SW 120 CSW 120 Installation on unfinished walls Installation dimensions of the boiler with freestanding cylinder SW 120 CSW 120 Installation on finished walls ...

Page 12: ...ction set for installation on finished walls Heating flow Rp DHW Rp gas combi boilers Cold water Rp gas combi boilers Heating return Rp Gas connection Rp Drain for safety valve R 1 With boilers that are not used for DHW seal the cold and DHW connections with locking cap G accessory If this is not done then the building and equipment may be damaged through uncontrolled water leakages Heating flow R...

Page 13: ... diagram below Wolf connection sets accessories are available for installation on finished and unfinished walls The connection pipes are Cu 18x1 Hydraulic connections Note As standard a combined cold water strainer with throughput controller is fitted at the cold water connection of the boiler see Fig Fig Throughput controller with cold water strainer Installation inside a cupboard For installatio...

Page 14: ...ety equipment are fully wired and tested You only need to connect the power supply and the external accessories Power supply connection Connect the power supply permanently or with a safety plug no plug connection in protective areas 1 and 2 i e near a bath or shower Provide the power supply via a mains isolator e g fuse heating system emergency stop which ensures at least 3 mm contact separation ...

Page 15: ... into the terminal box Insert and secure the connecting cable through the cable gland Connect the connecting cable to terminals L1 N and N and Fig Connection output A1 Installation information electrical connection Isolate the system from the power supply before opening the casing Pivot the control unit to the side Open the terminal box Insert the strain relief into the holes provided Strip approx...

Page 16: ...pply before opening the casing Pivot the control unit to the side Open the terminal box Insert the strain relief into the holes provided Strip approx 70 mm off the power supply cable insulation Push the cable through the strain relief and secure the strain relief Pull the Rast 5 plug Terminate the appropriate cores at the Rast 5 plug Push the inserts back into the terminal box casing Push the Rast...

Page 17: ...l unit accessory and the gas fired boiler Fig Digital Wolf control accessories connection eBUS interface Electrical connection CGU 2 K CGG 2 K Fig Connection programmable input Connection programmable input E1 24 V Connect the connecting cable for input 1 at terminals E1 in accordance with the wiring diagram first remove the jumper between a and b from the respective terminals The functions of inp...

Page 18: ...es and the shut off valves on the heating water side of the boiler Fill the entire heating system and boiler via the fill drain valves Wolf accessory up to approx 0 5 bar whilst simultaneously venting the heating system Close the return shut off valve on the heating water side of the boiler Attach drain hose to the drain valve on the hydraulic assembly alternative if only a fill drain connection i...

Page 19: ...alled Open the water and shut off valves on flow and return Open gas connection Switch ON emergency heating switch and switch ON the ON OFF switch on the control unit Check the adjustment of the flue length resetting if required See chapter Adjusting the flue length Check the ignition and flame structure of the burner The illuminated ring shows a yellow colour if the boiler starts correctly Instru...

Page 20: ...ermostat 2 8 3 7 4 6 5 Heating water temperature selector Settings 2 8 correspond to a heating water temperature of 40 80 C Combined with a temperature controller for wall mounted gas fired boilers the adjustment at the heating water thermostat is disabled instead the temperature is selected at the boiler temperature controller Signal ring as status display Display Explanation Flashing green Stand...

Page 21: ...mum idle period of 24 hours Anti seizing pump protection Thermomanometer The current heating water temperature is displayed in the upper area The water pressure in the heating system is displayed in the lower area In normal use the water pressure should be between 2 0 2 5 bar Emissions test mode The emissions test mode is activated by rotating the heating water temperature selector into position T...

Page 22: ...mmable input E1 1 to 11 1 HG14 Programmable output A1 0 to 15 6 HG15 Cylinder hysteresis 1 to 30 K 5 K HG20 Max cylinder heating time 0 to 5 h 2 h HG21 Minimum boiler water temperature TK min 40 C 20 to 60 C 40 C HG23 Maximum DHW temperature 60 to 80 C 65 C HG25 Boiler overtemperature during DHW cylinder heating 0 to 40 K 20 K HG70 Manifold sensor display only HG80 89 Fault history The control par...

Page 23: ...arameter A09 frost protection outside temperature that frost protection is no longer safeguarded if you set temperatures lower than 0 C This can lead to heating system damage Displaying modifying control parameters with Wolf control accessories The control parameter should be set according to the table opposite subject to the calculated length of the balanced flue routing The calculated length wil...

Page 24: ...w loss header The boiler pump runs constantly when there is a heat demand When the heat has been switched off via the room thermostat or remote control the boiler pump runs for the set time pump run on Hz parameter HG07 Pump operating mode Parameter HG06 HG06 0 Factory setting 0 Setting range 0 1 2 Pump operating mode 1 Feed pump for heating systems with cascade control and or low loss header buff...

Page 25: ...eration In case of DHW heating the reference temperature is provided by the internal boiler sensor The boiler pump will not run for a general heat demand but rather only when there is a burner demand in the heating operation with pump run on according to pump run on time With DHW demand free standing cylinder combi boiler stratification cylinder the heating circuit pump runs according to function ...

Page 26: ... conversion Gas type Parameter HG12 HG12 1 Factory setting 1 Setting range 0 to 1 Outside of the DHW switching times in the control accessories and in summer mode water can be heated to and kept at a certain temperature in the flat plate heat exchanger 10 C DHW quick start disabled 40 60 C DHW quick start enabled DHW Quick Start Parameter HG11 HG11 10 Factory setting 10 K Setting range 40 to 60 K ...

Page 27: ...ure control in heating and DHW mode pump operating mode 1 or only in heating mode pump operating mode 2 no longer relates to the flow sensor but rather the manifold sensor Safety functions and emissions test mode remain at the flow sensors In case of break or short circuit of the manifold sensor the flow sensor takes on the temperature control Observe parameter HG 06 8 Burner block BOB Operation w...

Page 28: ...of faults The feedback to input E1 must be made with a zero volt contact Otherwise use an on site relay for potential separation 8 External ventilation Output A1 is controlled inverted to the burner Switching OFF external ventilation e g extractor fan during burner operation is only required if the boiler is operated as open flue system 9 External LPG valve Output A1 switches with the gas combi va...

Page 29: ...t Set this parameter to 0 in heating systems with a high DHW consumption e g hotels sports facilities etc Max cylinder heating time Parameter HG20 Factory setting 2 h Setting range 0 to 5 h HG20 2 The control unit is equipped with an electronic boiler thermostat with an adjustable minimum switch ON temperature The burner is switched ON subject to the cycle block if this temperature is not achieved...

Page 30: ...g times Boiler overtemperature during DHW cylinder heating Parameter HG25 HG25 20 Factory setting 20 K Setting range 0 to 40 K Displaying modifying control parameters with Wolf control accessories Parameters HG 80 Fault 1 HG 81 Fault 2 HG 82 Fault 3 HG 83 Fault 4 HG 84 Fault 5 HG 85 Fault 6 HG 86 Fault 7 HG 87 Fault 8 HG 88 Fault 9 HG 89 Fault 10 HG70 54 Display only With parameter HG70 analogue i...

Page 31: ...eset button With boilers CGU 2 CGG 2 there are 3 possible boiler versions The DHW circuit is bridged and is not used When drawing DHW the flow rate sensor recognises the DHW demand The burner is fired up and regulated to the set DHW outlet temperature adjusted via rotary selector or control accessories When drawing DHW the temperature falls below the set DHW temperature The burner fires up and reg...

Page 32: ...s and keep pressed down during the next step Setting the address is only possible during this time window After 10 seconds the illuminated signal ring indicates the currently selected gas type see table eBUS address Turn the DHW temperature selector towards the required address and check the setting by means of the colour of the illuminated signal ring The adjustment will only be activated when th...

Page 33: ...ghtness otherwise gas may escape resulting in a risk of explosion asphyxiation or poisoning Priortocommissioning ensurethattheboilercorresponds to the gas type available Gas type Wobbe index Ws kWh m MJ m Natural gas H 11 4 15 2 40 9 54 7 LPG P 20 3 21 3 72 9 76 8 Commissioning gas train Pull the hose off and tighten the test nipple again Retighten the plug Start the boiler Check the ignition and ...

Page 34: ...l burner nozzles spanner size 7 at the gas manifold Insert new burner nozzles with new gaskets Reassemble the boiler in reverse order Table Number of nozzles nozzle size Boiler No of nozzles Natural gas H LPG propane Nozzle ID Nozzle Ø mm Nozzle ID Nozzle Ø mm CGU 2 K 18 090 0 90 060 0 60 CGU 2 K 24 090 0 90 060 0 60 CGG 2 K 18 087 0 87 057 0 57 CGG 2 K 24 087 0 87 057 0 57 Conversion to other gas...

Page 35: ...the required gas type and check the setting by means of the colour of the illuminated signal ring see table adjusting the gas type The adjustment will only be activated when the reset button is released A successful conversion of the gas type is indicated by a triple flashing yellow red 0 4 s ON 1 0 s OFF of the signal ring Table Adjusting the gas type 2 Adjusting the control unit Check the nozzle...

Page 36: ...sition chimney symbol Read off the nozzle pressure Pmax at maximum boiler output within the 15 minute test phase Compare the actual values with those in the table Close the plug again 2 3 Gas pressures for gas throughput adjustment according to the nozzle pressure method Table Nozzle pressure table Nozzle pressure in mbar 1013 0 5 mbar 15 C Gas fired boilers gasfiredcombi boilers Rated output P in...

Page 37: ...38 9 10 8 40 3 11 2 equivalent of a gross calorific value of HS in MJ m kWh m 28 8 8 0 30 2 8 4 31 7 8 8 33 8 9 4 35 3 9 8 36 7 10 2 38 1 10 6 40 0 11 1 41 8 11 6 43 2 12 0 4 6 12 4 18 0 20 2 47 0 44 5 42 3 40 3 38 4 36 8 35 2 33 8 32 5 31 3 30 2 15 3 17 2 40 0 37 9 36 0 34 3 32 8 31 3 30 0 28 8 27 7 26 7 25 7 CGU 2 K 18 13 0 14 8 34 3 32 5 30 8 29 4 28 0 26 8 25 8 24 7 23 7 22 8 22 1 10 9 12 5 28...

Page 38: ...e table Philips screwdriver 6x1 during this adjustment hold nut 5 tightly Turning right increases the pressure Turning left reduces the pressure Replace the plastic cap 4 Reconnect the cable 4 6 5 4 Identification Carry out the re designation of the gas type in accordance with the instructions supplied with the conversion kit Remove the test equipment Readjust the gas valve Checking adjusting the ...

Page 39: ... 30 seconds and hold it down during the next steps After 5 seconds the illuminated signal ring indicates the currently selected gas type see table Pipe length adjustment Turn the DHW temperature selector towards the required pipe length and check the setting by means of the flash sequence of the illuminated signal ring The adjustment will only be activated when the reset button is released A succe...

Page 40: ...e into the centre of the pipe Start the boiler and turn the heating water temperature selector to emissions test chimney sweep symbol The illuminated status display ring flashes yellow Test the temperature and CO2 value The CO2 value should be tested at maximum heat output Take the values from the table on the right After the test has been completed switch the boiler OFF remove the test probe and ...

Page 41: ...d by the modulation current of the gas valve By reducing the modulation current in accordance with the table the maximum output will be matched at 80 60 C to natural gas H and LPG Output kW Modulation current Output kW 10 9 12 15 18 21 24 IMod 0 27 33 46 60 75 100 Output kW Modulation current Output kW 8 10 12 14 16 18 IMod 0 27 39 52 65 77 100 Output adjustment 18 kW Output adjustment 24 kW ...

Page 42: ...livered condition The minimum circulation volume is ensured by a connection line between the flow and return An automatic overflow valve and a manually adjustable bypass valve are integrated into the connection line In the delivered condition the bypass valve is fully opened to MAX Closing the valve can increase the residual head see Selecting the pump stage bypass Stage 1 Stage 2 Stage 3 ...

Page 43: ... stage Bypass valve CGU 2 K 18 CGG 2 K 18 closed Residual head mbar Pump rate l h Bypass valve CGU 2 K 24 CGG 2 K 24 completely open delivered condition Residual head mbar Pump rate l h Bypass valve CGU 2 K 24 CGG 2 K 24 closed Residual head mbar Pump rate l h Selecting the pump stage bypass Pump stage Pump stage Pump stage ...

Page 44: ...isoning Proceed as follows Shut down the boiler Raise flue pipe or boiler connection bend and cover flue gas connection to the draught hood with a plate Start the boiler Enable emissions test mode The signal ring flashes yellow If functioning perfectly the flue gas monitoring switches off after 2 mins at the latest Remove cover plate Re install flue pipe or flue bend The boiler restarts automatica...

Page 45: ... Using alternative accessories can lead to incorrect functions Material losses and injuries cannot then be prevented General information From a length of 2 5 m upwards we recommend the installation of a condensate trap Calculating the flue length 60 100 mm Calculated flue length length of straight pipes 1 0 m per 90 bend tee 0 5 m per 45 bend Type C12x Outside wall connection balanced flue concent...

Page 46: ...with a resistance of at least 30 min Plastic flues are not permissible Fire may spread if these instructions are not observed The rated boiler output must be reduced to below 11 kW if the gas fired combi boiler is installed on an external wall balanced flue via an external wall A clearance between the balanced flue and combustible materialsorcomponentsisnotrequired astemperatures are limited to 85...

Page 47: ... flue routing horizontal incl cowl 10 Connection to a flue gas chimney B32 length 65 mm with air apertures 11 Rosette for internal walls 12 Rosette for external walls 13 Flat roof collar 14 Universal tile or roof plate or Klöber adaptor for pitched roof part 1 15 Universal tile or roof plate or Klöber adaptor for pitched roof part 2 16 Mounting bracket for roof outlet 17 Spacer clip 19 Balanced fl...

Page 48: ...ure is required for the balanced flue insert a balanced flue with inspection aperture 4 12 9 11 Air apertures 10 2b 4 17 1 Flat roof Ceiling outlet approx 120 mm Ø affix 13 into roof cover Pitched roof At 15 observe the installation instructions on the cowl regarding roof pitches Insert the roof outlet 8 from above through the roof and secure vertically with 16 to a rafter or brickwork Installther...

Page 49: ...tallation of motorised flue gas dampers is recommended These dampers must have a CE approval and are connected at the terminal box of the control unit Straight balanced flues must not be more than 2 m long when connecting the system to a balanced flue chimney In addition to the boilerconnectionbend amaximumoftwo90 diverters may be installed Nonobservance can lead to function errors Information abo...

Page 50: ...__________________________ mbar 4 Nozzle pressures checked only complete when changing the gas type 5 Gas leak test carried out 6 Balanced flue system tightness of condensate trap optional checked 7 Water connections checked for leaks 8 Boiler and system vented 9 System pressure 1 5 2 5 bar 10 Function test carried out 11 Casing fitted 12 System user trained tech docs handed over 13 Confirm commis...

Page 51: ... exchanger x 7 Reinstall the gas burner x 8 Clean and refit the DHW heat exchanger x 9 Clean and refit the strainer in the cold water inlet x 10 Check the tightness of electrical plug in connections x 11 Check the condition of the ignition and ionisation electrodes x 12 Replace the electrodes if required x 13 Re open the shut off valves on the water and heating water side x 14 Check the hydraulic ...

Page 52: ...bout the inspection and service work No to be implemented always if required Maintenance 2 Maintenance 3 Maintenance 4 Maintenance 5 Maintenance 6 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x 15 x 16 x 17 x 18 x 19 x 20 We recommend users arrange a service contract ...

Page 53: ... burner unit 3 Release the union nut of the gas supply pipe 4 The burner can be pulled out of the mounting bracket by applying light outward pressure In its disassembled state both the electrodes and the gas distributor pipe can be removed 5 Remove combustion residues with a brush non metallic Clean the nozzles and injectors if required with a soft brush and compressed air Wash severely contaminat...

Page 54: ...ot to bend the fins If necessary straighten them with a pair of pliers 9 Disassemble severely contaminated heating water heat exchangers Before disassembling the heating water heat exchanger depressurise and isolate the system on the water side close gas valve observe safety instructions Remove 2 x retaining clips from the flow return heating water heat exchanger placing them at the front 10 Disas...

Page 55: ... 3 by turning the screws to the left see both views SW 6 Pull out brackets 4 for sensors and thermomanometer to the right and remove them Open expansion vessel screw connection 5 and pull forward SW 24 Open gas screw connection 6 and turn to the side SW 24 Open piping safety valve on site Remove alternative valve 7 by undoing the brackets Interlocking of flow and return 8 open by turning 90 to lef...

Page 56: ... reinstalled Look underneath the heating water heat exchanger for inscription Maintenance Replacing the expansion vessel Procedure same as with cleaning the heating water heat exchanger and cleaning gas burner Undo fixing screws on expansion vessel gas supply line and heating water heat exchanger 11 Detach cables from the ionisation electrode 1 and plug in connection on the ignition electrode on t...

Page 57: ...ut the strainer and blow through with compressed air or clean it under fresh running water Reassemble in reverse order using new gaskets Note As standard a combined cold water strainer with throughput controller 16 is fitted at the cold water connection 15 of the boiler see diagram 16 15 Fig Throughput controller with cold water strainer Maintenance After a maintenance check proceed according to c...

Page 58: ...orlauf TB Speicherfühler PWM Pumpe Modulation WW Durchfluss Temperatursensor Schrittmotor 3 Wege Ventil GND 0 CGU 2 1 CGG 2 sw 1 3 2 4 1 sw 2 rt 3 bn 4 ge 5 or 6 gn 3 2 1 6 5 4 Stecker 3 Wege Ventil Motor Ansicht Kabelseite Stecker WW Durchflusssensor Ansicht Kabelseite 1 or 2 bn 3 sw 4 rt X 1 X 2 X 3 X 4 X 5 X 6 Terminal box Power 230VAC 50Hz A1 Programmable output AK Flue gas damper E1 Programma...

Page 59: ...1 3 2 4 1 sw 2 rt 3 bn 4 ge 5 or 6 gn 3 2 1 6 5 4 Stecker 3 Wege Ventil Motor Ansicht Kabelseite Stecker WW Durchflusssensor Ansicht Kabelseite 1 or 2 bn 3 sw 4 rt ge gn bn bl bn bl ge gr Ventilator M3 bn bl P sw rt bn sw rt bn 1 2 3 Stecker Hallsensor Ansicht Kabelseite 1 rt 2 bn 3 sw X Hallsensor B6 N L1 ws X 1 X 2 X 3 X 4 X 5 X 6 Terminal box Power 230VAC 50Hz Z Accessory connection switched 23...

Page 60: ...70 l h supply volume 18 KW at t 20 K mbar 1030 l h supply volume 24 KW at t 20 K mbar mbar 250 250 250 180 250 250 250 250 250 160 250 250 210 250 Specific water throughput D at t 30 K l min 8 7 11 7 DHW throughput 2 version IT ES l min 2 7 6 9 2 7 8 12 Minimum flow pressure for 95 Qmax 2 bar 0 27 0 9 0 27 0 9 Max permissible overall pressure bar 10 10 DHW temperature range C 40 60 65 40 60 65 Exp...

Page 61: ...0 KW at t 20 K mbar 770 l h supply volume 18 KW at t 20 K mbar 1030 l h supply volume 24 KW at t 20 K mbar mbar 250 250 250 180 250 250 250 250 250 160 250 250 210 250 Specific throughput D at t 30 K l min 8 7 11 7 DHW throughput 2 version IT ES l min 2 7 6 9 2 7 8 12 Minimum flow pressure for 95 Qmax 2 bar 0 27 0 9 0 27 0 8 Max permissible overall pressure bar 10 10 DHW temperature range C 65 65 ...

Page 62: ...ture or the lead is faulty Check lead Check replace flow temperature 1 14 Cylinder sensor faulty DHW temperature sensor or lead faulty Check lead Check replace cylinder sensor 15 Outside temperature sensor faulty The sensor for the outside temperature or the lead is faulty Check lead Check replace outside temperature sensor 22 Lack of air Differential pressure switch will not switch ON Press the r...

Page 63: ...8 24 5225 59 1289 94 406 10 27648 25 5000 60 1244 95 393 9 26189 26 4786 61 1200 96 382 8 24816 27 4582 62 1158 97 371 7 23523 28 4388 63 1117 98 360 6 22305 29 4204 64 1078 99 349 5 21157 30 4028 65 1041 100 339 4 20075 31 3860 66 1005 101 330 3 19054 32 3701 67 971 102 320 2 18091 33 3549 68 938 103 311 1 17183 34 3403 69 906 104 302 0 16325 35 3265 70 876 105 294 1 15515 36 3133 71 846 106 285 ...

Page 64: ...64 3062347_0309 Notes ...

Page 65: ...ommissioning guidelines 19 Commissioning report 50 Connection of digital Wolf control accessories e g BM MM SM1 SM2 KM 17 Contractor level 23 Conversion to other gas types 34 Cylinder hysteresis 29 D DHW connection versions 31 DHW cylinder sensor connection 17 DHW Quick Start 26 DHW temperature selector 20 Diagram bypass valve 43 Diagram limiting the maximum output 41 Dimensions 6 Disposal 49 E El...

Page 66: ...Plewa Schiedel 48 Layout 9 Layout CGG 2 K 18 24 8 Layout CGU 2 K 18 24 7 Lower burner output HZ 23 M Maintenance Cleaning the DHW heat exchanger 55 Maintenance Cleaning the gas burner 53 Maintenance Cleaning the heating water heat exchanger 54 Maintenance Cleaning the strainer in the cold water inlet 57 Matching the pipe length 23 Max cylinder heating time 29 Maximum DHW temperature 29 Maximum lim...

Page 67: ...ctions 3 Selecting the pump stage 42 Sensor resistances 63 Service report 51 Setting the eBUS address for cascade mode 32 Sound insulation 10 Specification CGG 2 K 18 24 61 Specification CGU 2 K 18 24 60 Standards and regulations 5 Summer mode 21 T Terminal box 14 Troubleshooting 62 U Upper burner output HZ 24 Upper burner output WW 24 V Venting and filling the system 18 W Winter mode 21 Wiring di...

Page 68: ...nt aux exigences fondamentales en vigueur de la directive du 29 06 1990 par rapport aux installations alimentées de gaz 90 396 CEE Dichiarazione di conformita campione di costruzione EG Con la presente dichiariamo che le nostre caldaie Murali a Gas Wolf e le caldaie a Gas Wolf corrispondono al e campioni di costruzione come sono descritte nel certificato di collaudo EG campione di costruzione e ch...