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Bosch Condens 7000 WP, Инструкция по установке и обслуживанию, Страница: 44 / 52

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Troubleshooting

 

Condens 7000 WP – 6721842519 (2022/03)

44

Table 22 Indicators and fault displays

11.1.3 Faults that are not displayed

2955 B

Boiler does not support the parameters set 
for the hydraulic configuration

Check hydraulic settings, change if necessary.

• Low-loss header
• Internal DHW circuit (cylinder charging circuit)
• Heating  circuit  1
• Heating pump in appliance

2956 O

Hydraulic configuration at the boiler 
activated

– 

2957 V

Boiler electr. system fault

1. Reset control device / burner control unit.
2. Reconnect electrical connections at control device / burner control unit correctly.
3. Replace the control device/burner control unit.

2961

2962

V

No fan signal available

1. Check fan and connecting lead.
2. Check mains voltage.

2963 B

The heat exchanger sensor or both supply 
and heat exchanger sensors are defect

1. Connect the plug to the temperature sensor correctly.
2. Connect the plug to the control device correctly.
3. Attach the temperature sensor correctly.
4. Check the temperature sensor, replace if necessary.
5. Check temperature sensor connecting lead, replace if necessary.

2964

Flow rate in heat exchanger too low

– 

2965 B

Flow temperature too high

1. Ensure that the heating circulation is working correctly.
2. Check pump setting, adjust to match heating system if necessary.
3. Connect the plug to the temperature sensor correctly.
4. Connect the plug to the control device correctly.
5. Attach the temperature sensor correctly.
6. Check the temperature sensor, replace if necessary.
7. Check temperature sensor connecting lead, replace if necessary.

2966 B

Flow temperature rise in heat exchanger too 
rapid

1. Ensure that the heating circulation is working correctly.
2. Check pump setting, adjust to match heating system if necessary.
3. Connect the plug to the temperature sensor correctly.
4. Connect the plug to the control device correctly.
5. Attach the temperature sensor correctly.
6. Check the temperature sensor, replace if necessary.
7. Check temperature sensor connecting lead, replace if necessary.

2967

The temperature difference between supply 
temperature sensor and temperature 
sensor at heat exchanger is too large

– 

2968

Refilling system pressure

– 

2970

Pressure drop in heating system too rapid

– 

2971 B

System pressure too low

1. Vent the heating system.
2. Check the heating system for tightness.
3. Top up water until the target pressure is reached.
4. Check the pressure sensor, replace if necessary.
5. Check the pressure sensor cable, replace if necessary.

2972

Mains voltage too low

1. Establish supply voltage of at least 196 VAC.
2. Replace burner control unit.

3071

No communication with remote control

1. Check configuration.
2. Check cabling.

Device faults

Remedy

Combustion noises too loud, rumbling noises

▶ Check the gas type.
▶ Check the gas supply pressure.
▶ Check the flue system, clean or repair as necessary. 
▶ Check the gas/air ratio.
▶ Check the air/gas ratio control valve, replace if required.

Flow noises

▶ Set the pump rate or pump characteristic map correctly and match to the maximum 

output.

Fa

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Remedy

Содержание Condens 7000 WP

Страница 1: ...6721842519 2022 03 GB IE Installation and maintenance instructions for specialists Wall mounted gas condensing boilers Condens 7000 WP GC7000WP 125 23 GC7000WP 145 23 ...

Страница 2: ...ve 230 V accessory 20 7 7 Mounting the function module accessory 20 7 8 Fitting the plug if not preassembled 21 8 Commissioning 21 8 1 Commissioning the boiler 21 8 2 Setting the parameters 21 8 3 Air gas ratio control valve switch off options 22 8 4 Measuring the gas standing pressure static 22 8 5 Measuring the gas dynamic working pressure 22 8 6 Measure CO2 and CO 22 8 7 Measure the of the heat...

Страница 3: ... material damage and personal injury including danger to life Read the installation service and commissioning instructions heat source heating controller pumps etc before installation Observe the safety instructions and warnings Follow national and regional regulations technical regulations and guidelines Record all work carried out H Determined use The product may only be used in a domestic situa...

Страница 4: ... or fluorine compounds This will help to prevent corrosion Keep the combustion air supply free of dust H Installation commissioning and maintenance Installation commissioning and maintenance may be performed only by an approved contractor In the case of open flue operation ensure that the installation location meets the ventilation requirements Do not repair manipulate or deactivate safety relevan...

Страница 5: ...dtherelevant addresses on the back of this document 2 6 Scope of delivery A range of accessories is supplied with the GC7000WP Check the heating system is intact on delivery Check that all package contents are present Table 1 Scope of delivery 2 7 Pump test The pump starts automatically for 10 seconds every 24 hours if it is not in use for a longer period This procedure prevents the pump from seiz...

Страница 6: ...ondens 7000 WP 6721842519 2022 03 6 2 9 product overview Fig 1 GC7000WP with connection set on frame 0010039414 001 14 10 7 11 6 36 39 38 37 30 35 34 33 31 32 28 13 12 8 9 2 4 1 5 3 16 15 17 19 21 26 27 22 20 24 18 23 25 29 ...

Страница 7: ...adaptor 15 Test point for flue gas routing 16 Test point for air supply 17 Upper panel 18 Connection point for diagnosis tool 19 Automatic air vent 20 Internal flue gas routing 21 Gas air mixing pipe 22 Safety temperature sensor 23 CO2 adjusting screw 24 Fan 25 Venturi nozzle 26 Gas hose 27 Air gas ratio control valve 28 Pressure compensation hose 29 Data plate 30 Condensate trap Connection set an...

Страница 8: ...10 Dimensions Boiler on frame Fig 2 Dimensions on base frame mm Boiler against the wall Fig 3 Dimensions on the wall mm 0010039235 001 260 260 191 202 198 115 64 200 651 520 115 1690 12 53 260 260 191 115 136 587 5 520 115 53 138 198 1120 100 309 0010039236 001 ...

Страница 9: ...orizontal flue outlet In this case also take the diameter of the collar into consideration With a vertical flue outlet Maintain a clearance of at least 100 mm above the boiler to allow the electronic components to be accessed and worked on Minimum space required for the boiler Provide an unobstructed space of at least 100 cm for the boiler to allow maintenance and other work to be carried out Mini...

Страница 10: ...of the IEE Wiring regulations governing electrical connection to the mains power supply Regulations and standards regarding the safety equipment in water filled heating systems For guidance see the ICOM water treatment guide for commercial heating systems Make sure that the regional approvals required for the flue system and condensate connection to the public sewage system have been obtained 3 2 ...

Страница 11: ... The boiler may only be operated up to a maximum installation altitude of 1200 m above sea level Table 15 technical data see 46 NOTICE The boiler may be operated with combustion air up to a certain maximum temperature Themaximumtemperatureofthecombustionairmustnotexceed35 C Table 15 technical data see 46 5 2 Important notices The boiler must not be operated in open heating systems open vented syst...

Страница 12: ...heating water must be checked and reduced if necessary With the chloride content of the heating water If the chloride content is more than 150 ppm perform water treatment as described in the supplied Manual for water quality Set the maximum flow temperature to the required value 9 4 p 25 Contact the manufacturer for more information You will find the relevant addresses on the back of this document...

Страница 13: ... As the boiler subsequently needs to be adjusted do not fully tighten the screw Fig 9 Secure the frame to the wall or floor Push the boiler onto the frame The boiler is secured to the frame at the rear If it has been secured correctly a click will be audible Align the boiler in the frame using the adjustment option 1 Fully tighten the grub screw in the frame Fig 10 Align the boiler on the frame 00...

Страница 14: ...gn the boiler using a spirit level and adjusting screw on the rear Fig 12 Aligning the boiler on the wall 6 4 Connecting on the heating and gas side The boiler can be connected on the heating and gas side in 2 ways using a connection set accessory 6 5 p 14 without connection set 6 8 S 16 6 5 Mounting the connection set accessories NOTICE Installation damage due to incorrect excess pressure of the ...

Страница 15: ...hout stress to the gas valve Install a gas filter in the gas line if required Fig 13 Installing the gas valve 1 Gas connection 2 Two part coupling 3 Gas isolator 6 5 2 Mounting the connection set Mount the flow connection with the flat gasket 1 Mount the pump with the flat gasket 2 Mount the return connection with the flat gasket 3 Tighten the rotary joints handtight Fig 14 Mount the flow return c...

Страница 16: ...ter pipe is blocked this can damage the boiler A blockage in the waste water pipe can prevent the removal of condensate from the boiler if the condensate drain line is permanently connected to the waste water pipe Make sure that the connection between the condensate pipes of the boiler and the waste water pipe connection is unobstructed Use a waste water pipe made of plastic material with a diamet...

Страница 17: ... the flow and return pipe Fig 18 p 17 6 8 1 Connecting the gas valve Connect the gas valve 6 5 1 p 15 6 8 2 Installing the pump Select the pump using the specifications as the basis Tab 16 3 p 49 Take the required volumetric flow rate into consideration Tab 16 3 p 49 If a low loss header is not used Select a pump with a residual head of at least 200 mbar at the required volumetric flow rate Instal...

Страница 18: ...C 50 Hz at all times for commissioning of the boiler The socket must be earthed When establishing the electrical connection also refer to the documentation of the accessory to be connected and the wiring diagram 16 1 p 47 7 1 Handling printed circuit boards Printed circuit boards with control electronics are very sensitive to electrostatic discharge ESD To prevent damage to the components exercise...

Страница 19: ...boiler is interrupted Remove wire link Connect safety components in series Attention 230 V components must only be connected via a relay Outside temperature sensor Connect the outside temperature sensor Storage cylinder temperature sensor Connect cylinder temperature sensor Temperature sensor of low loss header Connect the temperature sensor of a low loss header Set the use of the low loss header ...

Страница 20: ...applies for these pumps Connect the 230 V mains cable of the pump to the 3 pin plug 1 Guide the 230 V mains voltage cable through the strain relief Close the pump terminal box fold the pump terminal box up and press horizontally until it snaps into place Fig 26 Connecting the pump 1 230 V cable 2 PWM signal cable 7 6 Connecting the 3 way valve 230 V accessory A 3 way valve can only be connected to...

Страница 21: ...ssure of 2 bar and close the filling valve Vent the radiators Fill the heating system again to a pressure of 2 bar Open the gas cock Venting the gas line Operate the appliance Start up the boiler 8 2 Setting the parameters Differentparameterscanbesetinthesettingsmenu so theboilercan be adapted to the heating system Go through the parameters in the menu Settings 9 4 p 25 Adjust the parameters if re...

Страница 22: ...s ratio control valve Min 17 mbar 2 4 mbar 14 6 mbar Max 25 mbar 2 4 mbar 22 6 mbar Table 8 Pressure drop between gas valve and air gas ratio control valve Calculate the permissible minimum and maximum gas pre pressure Switch off the appliance Remove the front panel Open the gas pre charge pressure test port by turning the adjusting screw through 2 revolutions 8 3 S 22 Set the pressure gauge to 0 ...

Страница 23: ...R0 During the subsequent inspection or maintenance the measurement RX should be used as an indication of the contamination Switch off the appliance Remove the front panel Removethecoverofthecondensationcatchpan Fig 38 p 34 Open the gas air ratio test port by turning the adjusting screw through 2 revolutions 8 3 p 22 Set the pressure gauge to 0 Connect the pressure gauge to the gas air ratio test p...

Страница 24: ...y or omitting it altogether Drawattentiontothedangersassociatedwithcarbonmonoxide CO and recommend the use of CO detectors Hand over the technical documents to the operator 9 Operation 9 1 Control panel overview Fig 32 Control panel 1 Display 2 and keys 3 Heating water pressure display 4 d key 5 OK key 6 Menu key 7 Hot water key 8 Heating key 9 Burner display See the operating instructions for a d...

Страница 25: ...ey or the key Press the OK key The menu or the menu item is displayed To return to the next higher menu level press the d key Changing the setting values Select the menu item with the OK key To select the desired value press the or the key Press the OK key The new value is saved Exiting the menu item without saving values Press the d key The value is not saved Overview of the service menu Info Cur...

Страница 26: ... run time Service date1 Limit values Max flow temp Max DHW temp Min boiler outp Heating curve Enable Htg curve base Htg curve end Summer mode Frost prot Frost temp limit Function check Activate test Burner Ignition Fan Pump Cyl prim pump 3 way valve HC1 pump DHW circ pump Ionisat oscill Reset Default setting Service display Fault history Demo mode Yes No 1 With heating controller ...

Страница 27: ... Ionisation current Current ionisation current in μA Pump mod Outside temp Current outside temperature in C HC1 pump Own pump installed downstream of low loss header Burner starts Number of burner starts since commissioning Hours run Run time of the system since commissioning System pressure Current operating pressure in bar Hot water Max output DHW act temp Act DHWtmp cyl Current water temperatur...

Страница 28: ...ting time between switching on the burner and switching it on again Anticyc temp off 2 6 15 K Thedifferencebetweenthecurrentflowtemperatureand the set flow temperature until the burner is switched off Anticycle temp on 15 6 2 K Thedifferencebetweenthecurrentflowtemperatureand the set flow temperature until the burner is switched on Hot water Max DHW output 50 100 Maximum approved DHW output DHW ci...

Страница 29: ...o area of the standard display Siphon fill prog 3 WV mid pos No Yes The function ensures that the system is fully drained and that the motor can be easily removed The 3 way valve remains at the middle position for approx 15 minutes Min Sys Pres 0 6 0 8 bar Target Sys Pres 1 0 1 3 1 7 bar Maintenance Maintenance type Without Burner run time 1000 6000 h Service date1 Boiler run time 1 72 months Limi...

Страница 30: ...riction Activate test Burner Off 100 This service function enables you to test the burner by adjusting the appliance output Ignition On Off Permanent ignition Testing the ignition by means of permanent ignition without gas supply To prevent damage to the ignition transformer leave the function switched on for a maximum of 2 minutes Fan On Off Permanent ignition Fan running without gas supply or ig...

Страница 31: ...boiler before working on electrical parts CAUTION Malfunctioning safety sensors The function of the safety sensors in the installation room such as CO CO2 and gas detectors must be regularly checked Check the function of relevant safety sensors during inspection or maintenance You can read about how to perform the check in the instructions for the safety sensor Defects at relevant safety sensors m...

Страница 32: ... the value read out whether components need to be replaced 10 16 1 p 36 Make a note of the valuein the maintenance protocol 10 17 p 38 Establish the difference between the value most recently read out and the previous value from the maintenance protocol Check the setting Maintenance type based on this difference and adjust if required 8 2 p 21 Reading out Burner starts The number of Burner starts ...

Страница 33: ...Contact with a hard brush or a vacuum cleaner may damage the surface of the burner Clean the burner only using compressed air Clean the burner using compressed air 10 5 Cleaning the heat exchanger NOTICE Risk of damage to the heat exchanger due to improper cleaning Do not use chemical agents to clean the heat exchanger Only use brushes with plastic bristles for cleaning Remove loose dirt with a va...

Страница 34: ...k whether the neck of the siphon is properly connected to the condensation catch pan Tighten the union nut hand tight 10 8 Installing the gas air unit Clean the contact surfaces of the heat exchanger Reinsert the burner back into the heat exchanger When reinserting observe the position of the centring axis 1 Tighten the screws 3 Nm 2 Fig 40 Installing of the burner Install the new burner gasket 1 ...

Страница 35: ...ascal Pa Attention During the measurement the air resistance is displayed as negative value Stop the Function check Close the gas air ratio test port Reattach the cover of the condensation catch pan 10 9 3 Assess the air resistance R For the assessment of the air resistance above the heat exchanger the following applies R0 Rx R The maximum decrease in the air resistance R differs depending on the ...

Страница 36: ...ts in the maintenance protocol 10 17 p 38 10 16 2 Replacement of the ionisation and ignition electrode NOTICE Damage to the appliance by applying an excessively high torque when tightening the screws The screws of the ionisation and ignition electrode are installed in an aluminiumheatexchanger Usingagraphitesealensurestightnesswhen tightening the screws hand tight using hand tools Tighten the 4 sc...

Страница 37: ...ible to electrostatic charge ESD Wearanearthedwriststrapwhenworkingonelectroniccomponents 7 1 p 18 Switch off the appliance Open the top appliance cover 7 2 p 18 Detach the bracket of the burner control unit 1 Push the burner control unit to the left 2 Lift the front of the burner control unit so the coding plug is easily accessible 3 Remove the coding plug 4 Attach new coding plug Fig 46 Replacin...

Страница 38: ...ity 5 Check the gas supply pressure mbar 6 Check CO content ppm 7 Check CO2 content full load 8 Check CO2 content low load 9 Check tightness on the gas and water side 10 Check the electrodes 11 Check the burner 12 Check the heating block 13 Check ionisation current A 14 Clean dirt trap 15 Resistance of heat exchanger Pa 16 Check non return valve 17 Check the pre charge pressure of the expansion ve...

Страница 39: ...edeviceisstillinoperation Iftheservicedisplayhasbeencaused by a defect under certain circumstances it may continue running with restricted functions 11 1 2 Fault code table R7 R8 R9 R10 R11 R12 R13 R14 R15 Inspection or maintenance Measurement RX R0 RX R Fault code Fault category Fault text on the display description Remedy 200 O Boiler in heating mode 201 O Boiler in hot water mode 202 O Boiler i...

Страница 40: ...ting lead to the flame sense electrode 9 Replace air gas ratio control valve 10 Set the burner correctly or replace the burner nozzles 11 Set the burner at minimum rated load 12 Convert the flue system 13 The interconnected combustion air supply is too low or the ventilation opening is too small 14 Clean the heating block on the flue gas side 15 Replace control device burner control unit 232 B Boi...

Страница 41: ... O Anti seizing functn active 360 V System fault boiler electronics basic controller 1 Install boiler identification module coding plug 2 Connect plug to boiler identification module coding plug 3 Replace boiler identification module coding plug Bosch contact customer service 362 V Boiler identification module or boiler electronics faulty Replace boiler identification module coding plug Bosch cont...

Страница 42: ...ensor correctly 4 Check the temperature sensor replace if necessary 5 Check temperature sensor connecting lead replace if necessary 1070 Maintenance is due on dd mm yyyy please call your service engineer 1071 Maintenance is now due please call your service engineer 1072 Maintenance is overdue please call your service engineer 1074 No signal from flow temperature sensor 1075 W Heat exchanger temp s...

Страница 43: ...cation module coding plug Bosch contact customer service 2948 B No flame signal with low output Burner starts automatically after purging If this fault occurs frequently check CO2 setting 2949 B No flame signal with high output The burner is automatically restarted following purging 1 Check burner gaskets replace if required 2 Reduce output 2950 B No flame signal following starting procedure Burne...

Страница 44: ...rectly 6 Check the temperature sensor replace if necessary 7 Check temperature sensor connecting lead replace if necessary 2966 B Flowtemperatureriseinheatexchangertoo rapid 1 Ensure that the heating circulation is working correctly 2 Check pump setting adjust to match heating system if necessary 3 Connect the plug to the temperature sensor correctly 4 Connect the plug to the control device correc...

Страница 45: ...e and instead must be taken to the waste collection points for treatment collection recycling and disposal The symbol is valid in countries where waste electrical and electronic equipment regulations apply e g European Directive 2012 19 EC on old electronic and electrical appliances These regulations define the framework for the return and recycling of old electronic appliances that apply in each ...

Страница 46: ...Rated heat input G31 Qn Hi kW 24 5 118 1 24 5 140 1 Efficiency 37 30 C partial load 30 in accordance with EN 15502 109 3 109 6 Efficiency 80 60 C full load 99 0 99 1 Standby loss in accordance with EN 15502 0 12 0 15 Standard efficiency of heating curve 75 60 C 107 2 107 3 Standard efficiency of heating curve 40 30 C 110 4 110 6 Pump overrun min 2 2 IP classification IP rating IP X0D Appliance cla...

Страница 47: ...2 min max W 12 300 12 300 Condens 7000 WP GC7000WP GC7000WP 125 GC7000WP 145 0010034254 002 A B C D E F R G H J K L M N Q P 1 8 1 4 1 4 1 6 1 4 1 4 1 6 4 1 1 5 8 1 1 8 17 17 1 7 1 6 1 1 A8 A7 A6 A5 A4 A3 A2 A1 HMI 1 4 1 5 2 6 3 7 4 8 R4 R3 R2 R1 C13 C12 C11 C7 C6 C5 P C4 C3 C2 C1 D17D14 D16D14 D13 D11 D14 D4 D1 D2 E7 E6 E5 P1 P2 E2 2 N 1 L E1 PE PE 120 230 VAC PW1 1 2 3 4 Q1Q2Q3Q4 M1M2 M J P PE E ...

Страница 48: ...A BG BY CH CZ DK EE ES GB GR HR IE IT KZ LT LV MD NO PT RO RS RU SE SI SK TR UA Natural gas H G20 17 20 25 HU Natural gas H G20 17 20 25 DE LU NL PL Natural gas E G20 17 20 25 Fr Sub group Es Natural gas E G20 17 20 25 Fr Sub group Ei Natural gas E G20 20 25 30 BE Sub group Es Natural gas E G25 20 25 30 NL Natural gas L G25 20 25 30 NL Aardgas K G25 3 20 25 30 DE NaturalgasLL G25 18 20 25 DK NL NO...

Страница 49: ...tance of heat exchanger 16 5 Setting values for heating capacity Table 30 Setting values for heating capacity 16 6 Commissioning report for the appliance Unit GC7000WP 125 GC7000WP 145 Required volumetric flow rate at T 20 K l h 5300 6300 Max volumetric flow rate l h 7000 Resistance of the boiler mbar 312 430 0010041018 002 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 0 1000 2000 3000 4000...

Страница 50: ...e mbar Gas static supply pressure mbar Set maximum rated output kW Set minimum rated output kW Gas flow rate at maximum rated output l min Gas flow rate at minimum rated output l min Net calorific value HiB kWh m3 CO2 at maximum rated output CO2 at minimum rated output O2 at maximum rated output O2 at minimum rated output CO at maximum rated output ppm mg kWh CO at minimum rated output ppm mg kWh ...

Страница 51: ...rry out a combustion air flue gas test Function check carried out Leak test carried out on the gas and water sides Commissioning includes checking the setting values a visual leak test on the appliance and a function check of both the device and its control The system installer conducts a test of the heating system The system named above has been checked to the extent described ___________________...

Страница 52: ...Bosch Thermotechnik GmbH Junkersstrasse 20 24 D 73249 Wernau www bosch thermotechnology com ...

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