Wolf CGS-2-14/120L Installation Instructions Manual Download Page 90

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3064816_201804

40. Troubleshooting

Fault

code

Fault

Possible causes

Remedy

Flame failure

Flame failure during flame stabilisation

after flame detection

Monitoring electrode faulty
Flue path blocked
Condensate drain blocked
Gas type setting
Gas pressure
Flue gas recirculation

(flue gas in the ventilation air)

Gas condensing boiler contaminated

Gas type setting:

- Check gas type setting on the gas valve

and the AM/BM.

Gas pressure:

- Check the gas supply pressure (flow pres-

sure).

Ionisation electrode:

- Check the condition of the electrode,

clean or replace if necessary.

- Set gap and position or

replace if necessary.

Flue gas recirculation:

- Check flue path inside and outside the

appliance (leaking, blocked).

Press reset button.

TC excess temp.

One of the temperature sensors

eHLSC1 or eHLSC2 has exceeded the

limit of the temperature monitor (102 °C)
System pressure
Air in heating circuit

Temperature monitor in the flow

Pump

Check system pressure.

Vent heating circuit.

Temperature monitor in the flow:

- Check leads and plug-in connections.

- If electrical connection OK but no function,

replace the temperature monitor.

Pump:

- Check if pump is running.

- If not, check cables and plugs.

- If electrical connection OK but no function:

Replace pump.

Press reset button.

Flue gas TL, excess
temperature

The flue gas temperature has exceeded

the flue gas temperature limiter's

shutdown temperature of 110 °C
Combustion chamber module
Combustion chamber
Flue gas temperature monitor

Combustion chamber module:

- Check installation position.

Combustion chamber:

- If the combustion chamber is heavily

contaminated, carry out maintenance or

replace.

Flue gas temperature monitor:

- Check leads and plug-in connections.

- If electrical connection OK but no function:

Replace temperature limiter.

Flue gas damper does
not switch

Flue gas damper contact (E1) closes or

does not open on demand; output A1

does not switch flue gas damper; flue

gas damper blocked

Flue gas damper:

- Check cables, plug-in connections and

power supply.

- Check the flue gas damper function.

- Check the flue gas damper feedback.

- Check settings HG13 and HG14.

Press reset button.

255

Fault code unknown

This fault is not known in this software

Check software version of the PCBs
Call a contractor

eHLSC sensor faulty

Temperature sensor eHLSC1, eHLSC2

on the combustion chamber or sensor

lead has short circuit or lead break

eHLSC on the combustion chamber:

- Check leads and plug-in connections.

- If electrical connection OK but no function,

replace the eHLSC.

Flame pretence

Flame signal is detected when burner

is off

Check monitoring electrode.
Press reset button.

Summary of Contents for CGS-2-14/120L

Page 1: ... FAX 49 0 875174 1600 www WOLF eu Art Nr 3064816_201804 Subject to technical modifications Installation instructions for contractors Gas condensing centre CGS 2 gas condensing centre CGS 2 14 120L CGS 2 20 160L CGS 2 24 200L CGS 2 14 150R CGS 2 20 150R CGS 2 24 150R ...

Page 2: ...atus 38 22 BM 2 programming unit 39 23 HG control parameters 40 24 Parameter description 41 Commissioning 25 Filling the heating system trap 52 26 Filling of optional appliance versions 56 27 Draining the heating system 57 28 Determining changing the gas type 58 29 Commissioning 60 30 Checking the gas supply pressure 61 31 Adjusting the maximum heating output 62 32 Testing the combustion parameter...

Page 3: ...ontrol Act Energy Saving Ordinance Germany Inform the system user that these instructions and the other applicable documents must be kept in a safe place Instruct the system user how to operate the heating system 1 4 Applicability of these instructions These installation instructions apply to the CGS 2 gas condensing boilers 1 5 Acceptance Within 4 weeks of commissioning the combustion system the ...

Page 4: ...x Installation set trap with hose cleaning brush connection pieces for heating flow return with boiler drain fill valve R bracket for gas connection gas connection line flexible hose for safety valve Standard delivery Accessories The following accessories are required for installing the gas condensing boilers Balanced flue accessories see technical information Control unit for room temperature dep...

Page 5: ...hnical documentation supplied by WOLF Intended use of the boiler includes exclusive use for hot water heating systems in accordance with EN 12828 Never remove bypass or otherwise disable any safety or monitoring equipment Only operate the appliance if it is in technically sound condition Any faults or damage which impact or might impact upon safety must be remedied immediately by a qualified con t...

Page 6: ...Isolate the system from the power supply e g by remov ing the separate mains fuse or by means of a main switch or a heating emergency stop switch and check to ensure there is no voltage Safeguard the system against reconnection Inspection and service Ensure the correct operation of the gas boiler by having a contractor carry out inspections at least once a year and maintenance repair when required...

Page 7: ...Danger through live electrical components risk of burning from hot components Fig Gas combination valve Danger through live electrical components Escaping gas may cause poisoning or an explosion Fig Terminal box Danger through live electrical components Fig Gas connection Risk of poisoning or explosion in the event of gas escaping ...

Page 8: ...7 6 7 2 6 8 4 300 1 5 1 2 0 4 2 7 2 2 8 2 4 5 2 156 200 300 400 454 2 0 4 2 7 2 3 Dimensions installation dimensions CGS 2L Gas condensing centre with stratification cylinder Cold water connection G DHW circulation connection G DHW connection G Gas connection R Heating flow G Heating return G Control unit cover hinged on the left Ø 60 100 Ø 60 100 Ø 80 125 Ø 80 125 ...

Page 9: ... 400 454 2 0 4 2 7 2 1 5 1 2 0 4 2 7 2 2 8 2 4 5 2 300 200 3 Dimensions installation dimensions CGS 2R Gas condensing centre with cylinder with internal indirect coil Control unit cover hinged on the left Cold water connection G DHW circulation connection G DHW connection G Gas connection R Heating flow G Heating return G Ø 60 100 Ø 60 100 Ø 80 125 Ø 80 125 ...

Page 10: ...550 550 550 860 l h pump rate 20 kW at t 20 K mbar 430 430 1030 l h pump rate 24 kW at t 20 K mbar 280 Max permissible overall pressure DHW bar 10 10 10 DHW temperature range adjustable C 15 65 15 65 15 65 Water content heating water heat exchanger l 1 3 1 3 1 3 Nominal capacity of the stratification cylinder equivalent nominal capacity l 90 120 90 160 90 200 Spec water throughput D at ΔT 30 K l m...

Page 11: ...14 kW at t 20 K mbar 550 550 550 860 l h pump rate 20 kW at t 20 K mbar 430 430 1030 l h pump rate 24 kW at t 20 K mbar 280 Max permissible overall pressure DHW bar 10 10 10 DHW temperature range adjustable C 15 65 15 65 15 65 Water content heating water heat exchanger l 1 3 1 3 1 3 Nominal capacity of cylinder with internal indirect coil l 145 145 145 Spec water throughput D at ΔT 30 K l min 19 7...

Page 12: ...perature sensor 10 Heating flow 11 Gas supply pipe 12 Heating return 13 DHW circulation connection 14 Flue 15 Combustion chamber cover HLSC thermostat 16 Combustion chamber temperature sensor eHLSC sensor 17 Burner 18 Heating water heat exchanger 19 Flue gas temperature sensor 20 Pressure sensor 21 Return temperature sensor 22 Boiler water temperature sensor 23 Heating circuit pump with air vent v...

Page 13: ...Heating flow 9 Gas supply pipe 10 Heating return 11 DHW circulation connection 12 Cylinder flow 13 Flue 14 Combustion chamber cover HLSC thermostat 15 Combustion chamber temperature sensor eHLSC sensor 16 Burner 17 Heating water heat exchanger 18 Flue gas temperature sensor 19 Pressure sensor 20 Return temperature sensor 21 Boiler water temperature sensor 22 Heating circuit pump with air vent valv...

Page 14: ...r every output value are stored in the system Calibration For all gases the ionisation current is at its maximum when Lambda λ air ratio 1 Þ The system calibrates automatically by briefly shifting to Lambda 1 Þ Briefly increased CO emissions When does the system calibrate 1 Each time the mains supply is switched on 2 Cyclically after a certain number of burner starts and a certain burner runtime 3...

Page 15: ... the r h and l h sides of the front casing The front casing can then be released at the top and removed To remove the cylinder front casing undo the two screws on the r h and l h sides The casing can then be pulled forwards and removed Fig Front view control unit cover open Fig Dismantling the stratification cylinder front casing SW 4 ...

Page 16: ...buildings Method for calculation of the de sign heat load DIN EN 12828 Heating systems in buildings Design for water based heating systems DIN EN 13384 Chimneys Thermal and fluid dynamic calculation methods DIN EN 50156 1 VDE 0116 Part 1 Electrical equipment for furnaces VDE 0470 DIN EN 60529 Degrees of protection provided by enclosures IP rating VDI 2035 Prevention of damage in hot water heating ...

Page 17: ...gulatory agencies usually represented by the flue gas inspector Germany Local regulations of the gas supply utility Regulations and requirements of the local power supply utility Provisions of regionally applicable building regulations Minimum heating water requirements in accordance with ÖNORM H5195 1 must be observed The following apply to installation and operation in Switzerland in particular ...

Page 18: ...or higher the use of a water treatment facility in the cold water supply line when heating DHW is necessary in order to extend the mainte nance intervals Even if water hardness is below 20 dH a higher risk of scale build up may occur locally necessitating suitable softening measures Failure to take such measures will result in premature scaling of the appliance and a reduc tion in the convenient a...

Page 19: ...als e g fluorine chlorine or sulphur Such materials are contained in sprays paints adhesives solvents and cleaning agents Un der unfavourable conditions these may lead to corrosion including in the flue gas system During boiler installation ensure that no con taminants e g drilling dust enter the gas boiler as this could lead to appliance faults Please note Operation in wet rooms In the delivered ...

Page 20: ...g screws Remove the transportation screws at the back of the cylinder Transportation handles SW 10 Dismantling the CGS 2L R side cylinder casing Open control unit flap 1 Remove both screws on the lower front panel 2 Remove lower front panel 3 Remove all four screws from the side cylinder casing 4 Open out the side casing panels and release both casing pins 5 Pull side casing down to remove it 6 Re...

Page 21: ...ting module A 4 1 Remove locking screws on the back 5 Remove cylinder sensor from sensor well and place near the heating pump of the heating module 6 Push heating module A back to release it from all 4 lock ing mechanisms 7 Lift up heating module A to remove it and lie it down on its back 8 Refit in reverse order Replace flat gaskets in the connections 3 Always check the tightness of the connectio...

Page 22: ...ion Fig Concealed mounting bracket with bent tabs for surface mounting accessory Fixing holes at the back Htg flow Htg rtn Gas DHW CW DHW circulation Fig Connection to concealed mounting bracket for surface mounting accessory Shut off valve flow Heating return with shut off and safety valve Gas con nection Cold water DHW DHW cir culation Supply lines for flush mounting If supply lines for cold wat...

Page 23: ...provide a centralised pressure reducer Observe the regulations of DIN 1988 Germany as well as those of your local water supply utility when connecting cold water and DHW Your warranty is void if the installation does not comply with the illustration shown Note When selecting the installation material for the system observe engineering standards and take into account possible electrochemical proces...

Page 24: ...re may damage the gas valve resulting in a risk of explosion asphyxiation and poisoning Before pressure testing the gas line close the gas ball valve on the gas condensing boiler When installing the gas connection ensure all fittings are sufficiently tightened to pre vent gas leaks Fig Gas connection installation Installing the gas line Only DVGW or DINDVGW approved sealant e g non woven tapes pas...

Page 25: ...ide and swivel to the side Then undo the two screws on the r h and l h sides of the front casing The front casing can then be released upwards Fill the supplied trap with water and connect it to the conden sate pan connector The drain hose must be safely secured above the tundish trap If the condensate is directly routed to the sewer pipe provide a ventilation facility This is to prevent retroacti...

Page 26: ...lues use only original Wolf parts Prior to installation read the technical information regarding the balanced flue As regulations in the individual German Federal States differ we recommend consulting the rele vant authorities and local flue gas inspector prior to installation Please note Inspection and testing intervals The gas condensing boiler is equipped with con tinuous self calibrating contr...

Page 27: ...ds alongside 230 V cables Danger through live electrical components Please note Turn off the ON OFF switch before removing the casing Never touch electrical components or contacts when the ON OFF switch is in the ON position There is a risk of electrocution resulting in harm to health or death The main terminals are live even when the ON OFF switch is in the OFF position During servicing and insta...

Page 28: ...ontrol unit component overview Removing the HCM 2 casing cover See chapter Casing Netz N L1 Z1 N L1 A1 N L1 ZHP N L1 L1 LP N SF 1 2 AF E1 eBUS 1 2 a b E2 a b 1 2 1 2 1 2 1 2 1 2 Fig Control unit component overview HCM 2 control unit GBC e Terminals Burner control unit ...

Page 29: ... sensor E2 5 kNTC common sensor low loss header alternatively 0 10 V switching e g 8 V 80 heating output E1 programmable input e g flue gas damper or room thermo stat A1 programmable output LP cylinder primary pump only for appliances with stratifica tion cylinder ZHP heating circuit pump internal wiring ZHP switching paral lel to internal appliance pump Z1 230 V output when ON OFF switch is on Po...

Page 30: ...the system from the power supply before opening Check that the appliance is isolated from the power supply Swivel the control unit cover to one side Remove the front casing Open the lower casing cover of the HCM 2 Flexible power cable at least 3x1 0 mm2 strip approx 70 mm of insulation Remove the insert from the HCM 2 casing Push the cable through the strain relief insert and secure Pull out the R...

Page 31: ...and F2 fuses are located under the top casing cover of the HCM 2 F1 Fine wire fuse 5x20 mm 4 A medium or F4A F2 Micro fuse 1 25 A slow Danger through live electrical components Never touch elec trical components or contacts if the condensing boiler has not been isolated from the power supply Danger to life F1 F2 Connecting input E1 Insert and secure the power cable through the cable gland Connect ...

Page 32: ...ntrol accessories e g BM 2 MM 2 KM 2 SM1 2 SM2 2 Only controllers from the Wolf range of accessories may be connected Each accessory is supplied with its own connection diagram Use a two core cable cross section 0 5 mm as the connecting cable between the control accessory and the condensing boiler Bild Anschluss Außenfühler Netz N L1 Z1 N L1 A1 N L1 ZHP N L1 L1 LP N SF 1 2 AF E1 eBUS 1 2 a b E2 a ...

Page 33: ...ell as for emissions tests and frost protection gn ge M 230V br bl A1 N L1 L1 LP N SF 1 2 AF E1 eBUS 1 2 a b E2 a b 1 2 1 2 1 2 1 2 1 2 E1 programmable input e g flue gas damper A1 programmable output Flue gas ventilation air damper electrical connection Isolate the system from the power supply before opening Check that the appliance is isolated from the power supply Swivel the front panel to one ...

Page 34: ...rs and values can be programmed and displayed Specification 3 LCD screen 4 quick start keys 1 rotary selector with pushbutton function Please note Use when BM 2 is deployed as a remote control or in a cascade circuit AM is always in the heating appliance AM BM 2 Operating mode Heating mode Burner status ON Status Insert the AM or BM 2 in the slot above the ON OFF switch Wolf logo Both modules can ...

Page 35: ...3064816_201804 35 18 Display module programming unit dismantling Removing the BM 2 programming unit or AM display module ...

Page 36: ...e If your Wolf heating appliance is not equipped with an AM display mod ule ignore this page Further functions and descriptions can be found in the installation instructions for contractors or the user operating instructions for the AM display module Set heating appliance temperature if BM 2 as remote control no function Set DHW temperature if BM 2 as remote control no function Enable emissions te...

Page 37: ... test Finish Rem time in min T_boiler T_return Output in Extend time Finish Contractor Contractor code 1111 Back Relay test System Parameter Parameter reset Message history Back Displays Back T_boiler in C System pressure in bar T_flue gas C T_outside in C T_return in C T_DHW in C T_DHW outlet in C DHW DFL flow rate in l min Input E1 Modulation level in IO actual value Wolf service only DHW CP spe...

Page 38: ...mp enabled in parallel Test Relay test function has been enabled Cascade Cascade module in system enabled BMS Appliance is controlled by building management system BMS 100 cali Appliance is calibrating the flue gas system External disable External disabling of the heating appliance input E1 closed OWHA Heating appliance burner status Display shows Meaning OFF No burner demand Pre flush Fan operati...

Page 39: ...the installation instructions for contractors or the user operating instructions for the BM 2 programming unit Key 1 Key 2 Key 3 Key 4 14 12 20 01 15 1 5 bar 25 2 C 1x Boiler water tem perature Heating appliance Heating mode Pressure Status display Screen header Time Date Rotary selector with pushbutton function Display of system data content varies Quick start keys Operating mode Burner status Bu...

Page 40: ...s 1 1 1 1 5 HG12 Gas type Nat gas Nat gas Nat gas Nat gas LPG HG13 Function input E1 Various functions can be assigned to input E1 None None None Var Var HG14 Function output A1 230 V AC Various functions can be assigned to output A1 None None None Var Var HG15 Cylinder hysteresis switching differential during cylinder reheating C 5 5 5 1 30 HG16 HC pump rate minimum 45 45 45 15 100 HG17 HC pump r...

Page 41: ...ividual setting _____ The setting for the maximum burner output in DHW mode maximum appliance load Applies to cylinder heating and combi mode This percentage value corresponds approximately to the real appliance output Parameter HG03 Upper burner output DHW Factory setting See table Setting range 1 to 100 Individual setting _____ The setting for the maximum burner output in heating mode maximum ap...

Page 42: ... of the burner cycle block The burner cycle block is reset by turning the ON OFF switch off and on or by briefly pressing the reset button Parameter HG09 Burner cycle block Factory setting See table Setting range 1 to 30 min Individual setting _____ If multiple heat generators are controlled in one heating system with a cascade module addresses must be assigned to each heat generator Each heat gen...

Page 43: ...thout burner burner disabled When contact E1 is closed the burner is blocked Heating circuit pump 3 way valve and cylinder primary pump continue running in standard mode The burner is enabled in emissions test mode and in frost protection mode Opening contact E1 enables the burner again Fl gas damper Flue gas ventilation air damper Function monitoring of the flue gas ventilation air damper with fl...

Page 44: ...When input E1 has switched off and 30 minutes have elapsed the remote control function is re enabled for the next operation Fl gas damper Flue gas ventilation air damper Output A1 is activated first before each burner start The burner will however only be enabled after input E1 has been closed Closed contact E1 is a prerequisite for enabling the burner in heating DHW and emissions test mode If out...

Page 45: ...range 15 to 100 Individual setting _____ In heating mode the internal appliance pump does not regulate below this set value Regardless of pump control type set in HG37 Parameter HG16 HC pump rate minimum Factory setting See table Setting range 15 to 100 Individual setting _____ After completing cylinder heating in summer mode the cylinder has reached the set temperature the cylinder primary pump w...

Page 46: ...ferential Parameter HG22 Maximum boiler water temperature TK max Factory setting See table Setting range 50 to 90 C Individual setting _____ The excess temperature differential between the cylinder temperature and the boiler water temperature during cylinder heating is selected with parameter HG25 The boiler water temperature continues to be limited by the maximum boiler water temperature paramete...

Page 47: ...nding on the number of available eBUS subscribers OFF BUS feed is always off ON BUS feed is always on Auto The control unit switches the BUS feed on or off automatically Parameter HG34 eBUS feed Factory setting See table Setting range OFF to ON Individual setting _____ For setting the type of pump speed control in heating mode cascade operation and with BMS Constant Fixed pump speed HG17 Linear Li...

Page 48: ...ump is enabled as a feed pump Boiler water temperature control set value is specified by circuits with mixer Input E2 not assigned MK1 MK2 M M System configuration 11 Plate heat exchanger for hydraulic separation Burner starts subject to demand from the header temperature control Feed heating circuit pump DHW CP enabled as a feed pump for header demand Header temperature control Input E2 Header se...

Page 49: ...abled Shutdown when TKmax is reached BMS E2 BMS C E2 System configuration 52 BMS set boiler water temperature Burner is started subject to demand from the boiler thermostat Internal appliance pump is enabled as a feed pump from 2 V Boiler thermostat Input E2 0 10 V control from the external controller 0 2 V burner OFF 2 10 V set boiler water temperature TKmin HG21 TKmax HG22 Max set boiler water t...

Page 50: ...ation Parameter HG45 Flue length compensation Factory setting See table Setting range 0 to 7 5 Individual setting _____ Parameter HG43 has two functions 1 Triggering of a 100 calibration burner or IO electrode replacement 2 Permanent raising or lowering of the IO default value after a 100 calibration has been completed Calling up HG43 results in an automatic 100 calibration which involves a burner...

Page 51: ...5 5 C33x DN 60 100 0 m 3 m 3 m 6 m 6 m 12 m C33x DN 80 125 0 m 6 5 m 6 5 m 13 m 13 m 26 m C33x DN 110 160 0 m 7 5 m 7 5 m 15 m 15 m 30 m Other balanced flue systems BF diameter Max balanced flue see Balanced flue for wall mounted gas condensing boilers up to 24 kW 0 m 0 25 x BFmax 0 25 x BFmax 0 5 x BFmax 0 5 x BFmax BFmax CGS 2 24 200L There is a separate setting table for each model of the CGS 2...

Page 52: ... value of the heating water must be between 6 5 and 9 0 In mixed installations a pH value of 8 2 to 9 0 must be maintained in accordance with VDI 2035 The pH value should be checked again 8 12 weeks after commissioning as under certain circumstances chemical reactions may cause it to change If it does not fall within this range after 8 12 weeks remedial measures must be taken Heating water quality...

Page 53: ... in the range of 2 to 11 2 dH If the total hardness of the untreated potable water is too high some of the filling and top up water must be desalinated A desalinated water must be added A 100 Cmax 0 1 dH Cpotable water 0 1 dH x 100 Cmax Maximum permissible total hardness in dH Cpotable water Gesamthärte des unbehandelten Trinkwassers in dH A 100 11 2 dH 0 1 dH 18 dH 0 1 dH x 100 38 38 of the filli...

Page 54: ... and return valves on the boiler Slowly fill the entire heating system and boiler in a cold condition to approx 2 bar via the return Inhibitors and antifreeze are not permitted Bleed all radiators with a bleed key and if the system pressure drops significantly top up with water to 2 bar Check the entire system and all component unions for water leaks If leak tightness cannot be ensured there is a ...

Page 55: ...ched to the trap must not form a loop or roll up as this could lead to impaired operation 25 Filling the heating system trap When installing an automatic vent lock the lower threaded connection of the rotary joint underneath the combustion chamber floor Check the system pressure again and top up with water if required Note During continuous operation the heating circuit is auto matically vented vi...

Page 56: ... system separators of type CA are approved for liquids up to and including hazard category 3 e g heating water without inhibitors For Germany and Austria only drinking water may be used for the initial filling of the heating system using the filling facility An initial filling with treated water deionised water etc corresponds to a higher hazard category for which the CA hydraulic separator may no...

Page 57: ...se the gas ball valve Allow the temperature in the heating circuit to cool to at least 40 C Risk of scalding Safeguard the heating system against accidental reconnection to the power supply Open the drain valve boiler drain fill valve Open the air vent valves on the radiators Drain the heating water Draining the heating system ...

Page 58: ...G CZ IS ME RS SK UA II2N3B P 20 18 25 37 25 45 CH II2N3B P 20 18 25 50 42 5 57 5 CY I3B P 30 25 35 CY I3B P 50 42 5 57 5 HU NL II2H3B P 25 18 30 30 25 35 NL II2N3B P II2EK3B P 25 18 30 30 25 35 LU LV MT I2N 20 18 25 PL II2E Lw3B P II2N3B P 20 18 25 30 25 35 Determining the gas type The condensing boiler is equipped with electronic combustion control which regulates the gas air ratio in accordance ...

Page 59: ...been correctly set 2 Set adjusting screw A on the gas valve to 2 3 Press the red ON OFF switch to turn the boiler on 4 Set the gas type at the contractor level Press the operating button Þ Main menu Select the contractor level by rotating and pressing the operating button Enter code 1111 and confirm Select HG parameter HG12 and set to LPG Exit the contractor level Update the type plate Affix the l...

Page 60: ...ater leaks Check the location and seating of fitted components Check all connections and component unions for tightness If leak tightness cannot be ensured there is a risk of water damage Check that all flue gas accessories have been correctly installed Open the shut off valves in the flow and return Open the gas ball valve Check gas tightness Fig Gas connection Risk of poisoning or explosion in t...

Page 61: ...with a screwdriver Do not remove the screw 3 Connect the pressure gauge 4 Open the gas ball valve 5 Switch ON the gas condensing boiler 6 After starting the appliance at 100 load read the gas supply pressure gas flow pressure on the pressure gauge and enter it in the commissioning report 7 Turn off the gas condensing boiler close the gas ball valve remove the pressure gauge and tighten the screw i...

Page 62: ...C is adjusted Limiting the maximum heating output relative to a flow return temperature of 80 60 C Display value Heating output kW Table Output settings 24 kW appliance Display value 1 30 40 50 60 70 80 90 100 Heating output kW 4 8 7 3 10 2 13 0 15 8 18 6 21 5 24 3 27 1 20 kW appliance Display value 1 30 40 50 60 70 80 90 100 Heating output kW 3 8 5 5 7 9 10 3 12 6 15 0 17 4 19 8 22 2 14 kW applia...

Page 63: ...t port Ensure the screws are tightly secured Note The combustion control carries out an automatic calibration after every boiler start This can lead to briefly increased CO emissions Therefore test the emissions no sooner than 60 seconds after the burner has started Testing the flue gas parameters while the appli ance is closed When the test port is open flue gas can escape into the installation r...

Page 64: ...the ionisation electrode Þ see description HG43 in chapter Parameter description 4 If the CO2 or O2 value remains outside the respective range the flue gas values can be adjusted via parameter HG43 Check the electrodes for wear and contamination Clean the electrodes with a small brush not a wire brush or sandpaper Check the electrode gaps If the gaps do not correspond to the drawing or the electro...

Page 65: ...e of control aims to utilise the condensing effect as fully as possible while minimising the electrical energy required by the pump This is achieved by constantly maintaining a prescribed spread 3 Fixed speed setting Constant The heating circuit pump runs at the fixed set speed both for minimum and maximum burner output The pump rate is not controlled in relation to the required heat load and the ...

Page 66: ...erature is not achieved Increase the set room temperature at the controller e g with set value setting 4 The required room temperature is not achieved when outside temperatures are very low Select a steeper heating curve at the controller e g increase the flow temperature at standard outside temperatures Factory settings for pump speeds Appliance output Heating mode DHW Standby heating mode maximu...

Page 67: ...ent carried out in accordance with Technical information water treatment pH value set Total hardness set ________________ pH value ________________ dH 4 Appliance and system vented 5 System pressure 2 0 2 5 bar 6 Water connections checked for tightness 7 Trap filled 8 Gas valve set to gas type Natural gas LPG Wobbe index _____________ kWh m Net calorific value _____________ kWh m 9 Gas supply pres...

Page 68: ...h compensation table in contractor parameter HG45 17 Gas type and heating output entered on label 18 Balanced flue system checked 19 Flue gas test emissions test mode Gross flue gas temperature Intake air temperature Net flue gas temperature Carbon dioxide content CO2 or oxygen content O2 Carbon monoxide content CO _____________ tA C _____________ tA C _____________ tA tL C _____________ _________...

Page 69: ...W Abschalttemperatur liegt bei 102 C Diese führt zum Abschalten des Bren ners ohne dass dieser das Gerät verriegelt Störung Þ Fehlercode 06 Bei Unter schreiten des Abschaltpunktes geht das Gerät selbständig wieder in Betrieb Die TB Abschalttemperatur liegt bei 108 C Diese führt zum Abschalten des Brenners und zu einer verriegelnden Störung Þ Fehlercode 02 Bei Unterschreiten des Abschaltpunktes geh...

Page 70: ...x C93x C33x B33 C13x C93x C43x Information about multiple connections Point Safe differential pressure in accordance with DIN EN 15502 2 1 CGB 2 14 CGB 2 20 CGB 2 24 a The maximum safe differential pressure at the lowest thermal load Δpmax saf max 25 b The maximum safe differential pressure at the highest thermal load Δpmax saf min 87 78 78 c The maximum safe differential pressure at start Δpmax s...

Page 71: ...tion to moisture resistant flue gas chimney and combustion air through external wall room sealed Calculation to EN 13384 balanced flue chimney manufacturer C93x Flue for duct installation Connection pipe DN 60 100 vertical DN 60 rigid flexible 17 13 17 13 17 13 C93x Flue for duct installation Connection pipe DN 60 100 or DN 80 125 vertical DN 80 rigid flexible 18 14 21 17 26 22 1 The maximum lengt...

Page 72: ... the ceiling also forms the roof or where only the roof construction is located above the ceiling If the balanced flue passes through different floors of the building route the pipes outside the instal lation room inside a duct with at least 90 min fire resistance In low rise residential buildings building category 1 to 2 a minimum of 30 min fire resistance is required Fire may spread if these ins...

Page 73: ...raight pipe length and the length of any pipe bends Example for a 60 100 system1 Straight balanced flue length 1 5 m L straight length bend length 1 x 87 bend 1 5 m L 1 5 m 1 x 1 5 m 2 x 1 3 m 2 x 45 bends 2 x 1 3 m L 5 6 m Calculating the balanced flue length Note To avoid reciprocal interference between air and flue gas pipes routed above the roof we recommend maintaining a minimum clearance of ...

Page 74: ...nded Observe the special requirements for flues that are not surrounded by combustion air acc to DVGW TRGI 2008 and all locally applicable combustion regulations Connection to a combustion air and flue gas system type C63x that is not tested together with the gas combustion equipment Original Wolf components are designed for long term use are designated with the DVGW quality seal and are designed ...

Page 75: ...y Heating appliance press quick start key 3 to enable the Emissions test è CGB 2 starts Operate the first CGB 2 for at least 5 minutes Check the CO2 content in the air connectors on all other appliances If the CO2 value exceeds 0 2 within 15 minutes the leak must be found and remedied Subsequently close all test ports again When doing so ensure the caps are seated firmly Tightness test on the firs...

Page 76: ...DN 60 100 sliding socket if required 4 Balanced flue DN 60 100 500 mm 1000 mm 2000 mm 5 Balanced flue vertical DN 60 100 roof outlet for flat or pitched roofs L 1200 mm L 1200 mm 1700 mm 6 Universal tile for pitched roof 25 45 7 Flat roof collar 8 Bend 45 DN 60 100 9 Inspection bend DN 60 100 10 Bend 87 DN 60 100 11 Pipe collar 12 Support rail 13 Support bend 87 DN 60 to DN 80 14 Spacer 15 Flue DN...

Page 77: ...pection bend 10 Bend 87 DN 60 100 11 Pipe collar 12 Support rail 13 Support bend 87 DN 60 to DN 80 14 Spacer 15 PP flue DN 80 500 mm 1000 mm 2000 mm 16 Duct cover with UV resistant ter minal 17 Spacer clip 18 Balanced flue horizontal with wind protector 19 Connection to flue gas chimney B33 Length 250 mm with air apertures 17 18 18 11 11 11 11 19 4 160 160 4 0 0 2 10 4 4 17 17 9 9 12 13 14 16 15 1...

Page 78: ...tallation example for room sealed operation duct C33x Install horizon tal pipe with 3 fall towards boiler Please note 1 Gas condensing boiler 3 Separator sliding socket if required 4 Balanced flue DN 60 100 500 mm 1000 mm 2000 mm 9 Inspection bend 11 Pipe collar 12 Support rail 13 Support bend 87 DN 60 100 14 Spacer 16 Duct cover with UV resistant terminal 17 Spacer clip ...

Page 79: ...45 min 73 mm Flat roof Affix ceiling outlet 7 approx Ø 130 mm to the roof cover Pitched roof For 6 observe the installation instructions on the cowl regarding roof pitches If an inspection port is required for the balanced flue insert a balanced flue with inspection port 2 allow a length of 200 mm Insert roof outlet 5 into the roof from above and secure vertically with the mounting bracket to a ra...

Page 80: ...8 Trennvorrichtung Schiebemuffe falls erforderlich 9 Bogen 45 DN 80 125 10 Revisionsbogen 87 DN80 125 11 Bogen 87 DN80 125 12 Universalpfanne für Schrägdach 25 45 13 Adapter Klöber 20 50 14 Flachdachkragen Hinweise Trennvorrichtung 8 bei Montage bis zum Anschlag in die Muffe schieben Nachfolgendes Luft Abgasrohr 4 50 mm Maß S in die Muffe der Trennvorrichtung schieben und in dieser Position unbed ...

Page 81: ...125 mit glattem Ende am Luftrohr 18 Luft Abgasrohr Fassade DN80 125 19 Luftansaugstück Fassade DN80 125 20 konz Mündungsabschluss mit Klemmband 21 Anschluss an Abgasschornstein B33 Länge 250 mm mit Luftöffnung 22 Auflageschiene 23 Stützbogen 87 DN80 24 Abstandhalter 25 PP Abgasrohr DN80 26 Schachtabdeckung mit UV stabilisiertem Mündungsstück 28 Revisions T Stück 29 Luftrohr Ø 125 mm 30 Luftansaugr...

Page 82: ...3x room sealed System DN 80 185 horizontal and DN 80 vertical Connection to a concentric balanced flue in a duct examples DN 80 125 C33x Connection to a flue in a duct C93x 1 Gas condensing boiler 2 Adaptor DN 60 100 to DN 80 125 4 Balanced flue DN 80 125 500 mm 1000 mm 2000 mm 5 Spacer clip 8 Separator sliding socket if required 10 Inspection bend 87 DN 80 125 11 Support bend 87 DN 80 125 16 Pipe...

Page 83: ... Install eccentric balanced flue distributor 80 80 mm 31 for separate air supply flue gas routing with a test connector downstream of connection adaptor DN 80 125 2 When connecting a balanced flue certified according to Building Regulations observe the permit of the relevant body Install the horizontal flue with a fall of approx 3 6 cm m towards the boiler Route the horizontal air supply with a 3 ...

Page 84: ...to the roof from above and secure vertically with 6 to a rafter or brickwork Install the roof outlet only in its original condition Modifica tions are not permissible When installing slide the separator 8 fully into the female connection Push the next balanced flue 4 50 mm dim S into the female connection of the sep arator and ensure it is fully secured in this position e g with pipe clamps DN 125...

Page 85: ...t are permeable to oxygen it is necessary to provide hydraulic separation by means of a heat exchanger Inhibitors are not permissible If an additional heating circuit is operated in parallel to the underfloor heating system it must be hydraulically matched to the underfloor heating system Please note Fig Underfloor heating system Underfloor heating system DHW circulation For heating systems with p...

Page 86: ...r Contractor Back Contractor Contractor code 1111 Back Relay test System Parameter Parameter reset Message history Back No Yes Reset parameters to factory settings No Yes Reset parameters to factory settings Parameter Reset A parameter reset returns all parameters to their factory settings See Parameter settings Password Authorisation required ...

Page 87: ...8 24816 7 23523 6 22305 5 21157 4 20075 3 19054 2 18091 1 17183 0 16325 1 15515 2 14750 3 14027 4 13344 5 12697 6 12086 7 11508 8 10961 9 10442 10 9952 11 9487 12 9046 13 8629 14 8233 15 7857 16 7501 Temp C Resist Ω 17 7162 18 6841 19 6536 20 6247 21 5972 22 5710 23 5461 24 5225 25 5000 26 4786 27 4582 28 4388 29 4204 30 4028 31 3860 32 3701 33 3549 34 3403 35 3265 36 3133 37 3007 38 2887 39 2772 ...

Page 88: ...tures at the heat exchanger might prevent a reset Check that the system is functioning correctly Note To acknowledge the following fault messages first enter contractor code 1111 FC 20 30 32 35 36 37 38 39 99 Message history A message history can be requested in the Contractor menu of the AM display module or BM 2 programming unit displaying the last 20 fault messages Procedure in the case of warn...

Page 89: ...ot check cables and plugs If electrical connection OK but no function Replace the pump Press reset button 03 dt flow drift Temperature differential between temperature sensors eHLSC1 and eHLSC2 6 C at the combustion chamber eHLSC Faulty replace eHLSC Press reset button 04 No flame established When the burner starts no flame forms by the end of safety time Monitoring electrode faulty Ignition elect...

Page 90: ...n OK but no function Replace pump Press reset button 07 Flue gas TL excess temperature The flue gas temperature has exceeded the flue gas temperature limiter s shutdown temperature of 110 C Combustion chamber module Combustion chamber Flue gas temperature monitor Combustion chamber module Check installation position Combustion chamber If the combustion chamber is heavily contaminated carry out mai...

Page 91: ...ensor Wireless outside sensor See instructions for wireless outside sen sor Press reset button 16 Return sensor faulty Return sensor or sensor lead has short circuit or lead break Return sensor 100 C Return sensor Check leads and plug in connections If OK but no function replace the return sensor Press reset button 20 GCV relay test Valve test failed Gas valve faulty Replace gas valve Press reset ...

Page 92: ... 1111 38 BCC update required Boiler coding card fault PCB requires a new boiler coding card replacement Reinsert boiler coding card Replace boiler coding card Press reset button 39 BCC system error Boiler coding card fault BCC copy process not started Use ON OFF switch Replace boiler coding card Press reset button and enter contractor code 1111 40 Flow monitoring pressure increase check System pre...

Page 93: ...ary Press reset button Set HG43 IO default value and HG44 KL offset to factory setting must be done by contractor 54 GLV actuators Flue gas recirculation Incorrect gas type setting Incorrect gas restrictor Gas valve faulty Fan faulty Flue gas recirculation Check flue path inside and outside the appliance leaking blocked Check wind effect Gas type setting Check gas type setting on the gas valve and...

Page 94: ...if necessary Adjust gap and position or replace if neces sary Carry out 100 calibration Replace boiler coding card Check the electrical connection of the HCM 2 low voltage side 58 Calibration timeout The heating appliance cannot carry out calibration Flue gas recirculation Fan faulty Inadequate heat transfer Wiring error on HCM 2 low voltage side Flue gas recirculation Check flue path inside and o...

Page 95: ...heck the electrical connection of the HCM 2 low voltage side 99 Burner control unit system fault Internal burner control unit fault GBC e PCB faulty Unknown GBC e PCB Check plug lead for PWM signal fan for any loose contact Internal burner control unit fault Reset only possible after power supply OFF ON GBC e PCB Check plug in connection or power supply of GBC If OK request a service Press reset b...

Page 96: ...Flame failure during stabilisation time Flame failure after safety time Flame failure during operation Check replace monitoring electrode Flue path blocked Condensate drain blocked Check the gas supply pressure 24 Speed below or above limit Fan speed does not reach set speed or standstill Check flue gas system PWM and power cable to fan Check connection between CGBe and HCM 2 43 Many burner starts...

Page 97: ...e failed System error Check for a strong electromagnetic field nearby Switch power ON OFF reset if necessary Press reset button 58 Calibration timeout The heating appliance cannot carry out calibration Flue gas recirculation Fan faulty Inadequate heat transfer Flue gas recirculation Check flue path inside and outside the appli ance leaking blocked Fan Check that the fan and its wiring are intact I...

Page 98: ...X8 8 1 X7 13 1 sw rt vi 6 X6 1 X4 1 5 X5 1 X3 1 2 4 1 1 2 9 10 2 eBus X32 X30 8 1 X34 X33 rt sw vi br bl gr gn ge S1 sw br or rt WLAN LAN S1 rt or br sw X31 6 1 X1 1 4 23V 3V3 eBus GND wBus 5V X11 1 9 GND 3V3 eBus N C wBus VISTX CCTX CCRX X1 1 16 X2 1 10 VISRX WOLF sw ws rt X1 GBC E sw rt bl br gegn ws sw rt bl gn br gn br bl br bl PWM PE WW N HZ gn ge bn ws gn ge bn ws sw sw sw sw ge bl br gnge 4...

Page 99: ... 3 2 1 bl br 3 4 5 2 1 bl bl sw br bl br gr sw br vi ge sw bn vi rt br sw bl ge rt gn bn gn ws bl gr rt gn X6 HCM 2 17 X3 1 X2 X1 GBC e 1 8 X4 5 1 sw sw gnge gn br ws sw br bl rt mA gnge bn bl sw ws gnge gnge 3 2 1 sw sw sw sw ge bl br Fan 230 V AC Ignition transformer eHLSC sensor 1 Flue gas temperature sensor eHLSC sensor 2 HLSC Ignition electrodes Gas burner Gas combination valve Monitoring ele...

Page 100: ...en when the space heater is assembled installed or maintained See installation instruction See installation instruction See installation instruction See installation instruction Supplier s name or trade mark Wolf GmbH Wolf GmbH Supplier s model identifier CGS 2 20 150R CGS 2 24 150R Load profile XL XL Seasonal space heating energy efficiency class A A Water heating energy efficiency class A A Rate...

Page 101: ...liary electricity consumption in standby mode PSB kW 0 003 0 003 0 003 Seasonal space heating energy efficiency ns 93 93 93 Useful efficiency at rated heat output and high temperature regime n4 88 1 87 8 87 8 Useful efficiency at 30 of rated heat output and low temperature regime n1 98 0 97 7 97 7 Standby heat loss Pstby kW 0 033 0 033 0 032 Ignition burner power consump tion Ping kW 0 000 0 000 0...

Page 102: ...ctricity consumption in standby mode PSB kW 0 003 0 003 0 003 Seasonal space heating energy efficiency ns 93 93 93 Useful efficiency at rated heat output and high temperature regime n4 88 1 87 8 87 8 Useful efficiency at 30 of rated heat output and low temperature regime n1 98 0 97 7 97 7 Standby heat loss Pstby kW 0 033 0 033 0 032 Ignition burner power consump tion Ping kW 0 000 0 000 0 000 Emis...

Page 103: ...C 2014 EN 60335 1 2012 AC 2014 DIN EN 60335 2 102 2010 EN 60335 1 2006 A1 2010 DIN EN 62233 2009 EN 62233 2008 DIN EN 61000 3 2 2010 EN 61000 3 2 2006 A1 2009 A2 2009 DIN EN 61000 3 3 2010 EN 61000 3 3 2008 DIN EN 55014 1 2012 EN 55014 1 2006 A1 2009 A2 2011 In accordance with the following Directives 92 42 EEC Efficiency Directive 2016 426 EU Gas Appliances Directive 2014 30 EU EMC Directive 2014...

Page 104: ...WOLF GMBH POSTFACH 1380 D 84048 MAINBURG TEL 49 0 87 51 74 0 FAX 49 0 87 51 74 16 00 www WOLF eu Document no 3064816_201804 Subject to technical modifications ...

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