Bosch Condens 7000 WP Installation And Maintenance Instructions Manual

Bosch Condens 7000 WP Installation And Maintenance Instructions Manual

Wall mounted gas condensing boilers
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Installation and maintenance instructions for specialists
Wall mounted gas condensing boilers
Condens 7000 WP
GC7000WP 125 23, GC7000WP 145 23

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Summary of Contents for Bosch Condens 7000 WP

  • Page 1 Installation and maintenance instructions for specialists Wall mounted gas condensing boilers Condens 7000 WP GC7000WP 125 23, GC7000WP 145 23...
  • Page 2: Table Of Contents

    10.18 Air resistance measurement report ....38 Connecting electrical components ....19 Condens 7000 WP – 6721842519 (2022/03)
  • Page 3: Explanation Of Symbols And Safety Instructions

    DHW heating in closed-loop DHW and heating systems. Any other use is considered inappropriate. Any damage that may result from misuse is excluded from liability. Condens 7000 WP – 6721842519 (2022/03)
  • Page 4 ▶ In the case of open flue operation: ensure that the installation location meets the ventilation requirements. ▶ Do not repair, manipulate or deactivate safety- relevant components. ▶ Only install original spare parts. Condens 7000 WP – 6721842519 (2022/03)
  • Page 5: Product Information

    Table 1 Scope of delivery 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 seizing. Condens 7000 WP – 6721842519 (2022/03)
  • Page 6: Product Overview

    Product Information product overview 0010039414-001 Fig. 1 GC7000WP with connection set on frame Condens 7000 WP – 6721842519 (2022/03)
  • Page 7 [21] Gas-air mixing pipe [22] Safety temperature sensor [23] CO 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 Condens 7000 WP – 6721842519 (2022/03)
  • Page 8: Dimensions

    Product Information 2.10 Dimensions Boiler on frame Boiler against the wall 587,5 0010039236-001 0010039235-001 Fig. 2 Dimensions on base frame [mm] Fig. 3 Dimensions on the wall [mm] Condens 7000 WP – 6721842519 (2022/03)
  • Page 9: Minimum Clearance

    (downward 15 - 24 cm modulation). 24 - 33 cm 33 - 42 cm 42 - 50 cm Table 2 Diameter of core drilled hole K Condens 7000 WP – 6721842519 (2022/03)
  • Page 10: Opening And Closing The Front Panel Of The Appliance

    ▶ Comply with all instructions. ▶ If contact with ammonia is unavoidable, make sure that there are no brass parts installed in the system. Condens 7000 WP – 6721842519 (2022/03)
  • Page 11: Installation Location

    You will find the relevant addresses on the back of this document. ▶ Using the supplied “Water quality operator's log” determine the water volume V Condens 7000 WP – 6721842519 (2022/03)
  • Page 12: Water Conditioning And Treatment

    ▶ 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). Condens 7000 WP – 6721842519 (2022/03)
  • Page 13 ▶ Fasten the brackets to the floor [3]. -or- ▶ Fasten the frame to the wall [2]. ▶ As the boiler subsequently needs to be adjusted, do not fully tighten the screw. 0010030947-001 Fig. 10 Align the boiler on the frame Condens 7000 WP – 6721842519 (2022/03)
  • Page 14: Connecting On The Heating And Gas Side

    • Gas valve; • Service shut-off valves; • Pressure gauge • Safety valve; • Pump; • Fill and drain valve. These components can be found in the overview drawing ( § 2.9, p. Condens 7000 WP – 6721842519 (2022/03)
  • Page 15: Installing The Gas Valve

    ▶ Mount the pump with the flat gasket [2]. ▶ Check whether the neck of the siphon is properly connected to the ▶ Mount the return connection with the flat gasket [3]. condensation catch pan. ▶ Tighten the rotary joints handtight. Condens 7000 WP – 6721842519 (2022/03)
  • Page 16: Connecting The Condensate Pipe

    ▶ Fill siphon in the waste water pipe. Connecting heating pipes (without connection set) NOTICE If the operating pressure is too high, this can damage the boiler. ▶ Install a diaphragm safety valve between the boiler and the service shut-off valve. Condens 7000 WP – 6721842519 (2022/03)
  • Page 17: Connecting The Gas Valve

    ( § 16.3, p. 49). required volumetric flow rate. ▶ Install the pump [6] in the return line [5]. 0010018401-003 Fig. 19 Setup with low loss header Low-loss header Expansion Vessel Pump Service valve Differential pressure regulator Condens 7000 WP – 6721842519 (2022/03)
  • Page 18: Connecting An Expansion Vessel

    1 piece which is fastened underneath the boiler. electronics. This wrist strap must be worn when opening the screened ▶ For more information, refer to worcester-bosch.co.uk or you will find metallic bag/packaging or prior to exposing a fitted PCB. The wrist strap the relevant addresses on the rear of this document.
  • Page 19: Overview Of Plug-In Strip

    ▶ Connect the connecting leads of the components to the plug-in strip without tension. ▶ Route the connecting lead through the strain relief. Condens 7000 WP – 6721842519 (2022/03)
  • Page 20: Connecting The Pump Of The Pump Assembly

    Electrical connection Without pump assembly: When using pump types other than those available from Bosch as accessories, the PWM signal cannot be used. The PWM connection in the pump terminal unit is then not used. On/Off operation applies for these pumps.
  • Page 21: Fitting The Plug (If Not Preassembled)

    ▶ Complete the commissioning report during the commissioning procedure ( § 16.6, p. 49). Setting Maintenance Burner run Boiler run Service date type time time Standard operation 4000 hours 24 months Date: 24 months after installation Table 7 Maintenance interval parameters Condens 7000 WP – 6721842519 (2022/03)
  • Page 22: Air/Gas Ratio Control Valve Switch-Off Options

    2.4 mbar ( Tab. 8). Permissible limit values on the air/gas ratio control valve: Min. 17 mbar – 2.4 mbar = 14.6 mbar. Max. 25 mbar – 2.4 mbar = 22.6 mbar. Condens 7000 WP – 6721842519 (2022/03)
  • Page 23: Measure The Of The Heat Exchanger Air Resistance [R0]

    Low load GC7000WP Natural gas 8.9 ± 0.3 8.3 ± 0.3 Propane 10.0 ± 0.3 9.5 ± 0.3 GC7000WP Natural gas 8.9 ± 0.3 8.3 ± 0.3 Propane 10.0 ± 0.3 9.5 ± 0.3 Condens 7000 WP – 6721842519 (2022/03)
  • Page 24: Check The Function Of The Boiler

    While the siphon filling program is active, access to the Hot water menu, the Heating menu and the service menu is possible. The siphon filling program is activated automatically in the following cases: • The device is switched on using the On/Off switch. Condens 7000 WP – 6721842519 (2022/03)
  • Page 25: Settings In The Service Menu

    – Contr.device ver. – Siphon fill. prog. – Progr. unit ver. – 3-WV mid. pos. – Code plug no. – Autom. filling – Code plug ver. – System Fill – Solar – Min. Sys. Pres. Condens 7000 WP – 6721842519 (2022/03)
  • Page 26 – 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 Condens 7000 WP – 6721842519 (2022/03)
  • Page 27 – Software version of the control device SW sub-ver. – Software subversion of the control device Code plug no. – Coding plug number Code plug ver. – Coding plug version Table 10 Menu Info Condens 7000 WP – 6721842519 (2022/03)
  • Page 28 If there is heat energy demand, the heating pump starts up with the burner. Min. output • 10 ... 100 % Pump output at minimum heat output. Only available if Pump range map is set to 0. Condens 7000 WP – 6721842519 (2022/03)
  • Page 29 • 20 ... 90 °C This is only displayed if the control unit was activated. This can be used to set the base point of the heating curve, which corresponds to an outside temperature of - 10 °C. Condens 7000 WP – 6721842519 (2022/03)
  • Page 30 HC1 pump is installed. • Off DHW circ. pump • On Permanent DHW circulation pump. • Off Ionisat.oscill. • On Check the ionisation measurement function at the flame. • Off Table 12 Menu Function check Condens 7000 WP – 6721842519 (2022/03)
  • Page 31: Thermal Disinfection

    ▶ Check the tightness of all flue gas routing parts once the work is  § 10.3 to § 10.10 --  Cleaning complete.  § 10.11 to §   Check measurements 10.15 Table 15 Work to be carried out Condens 7000 WP – 6721842519 (2022/03)
  • Page 32: General Work

    ▶ Remove the electrical plug from the fan. 0010041397-001 Fig. 34 Removing the air collector ▶ Unscrew the nuts on the gas-air mixing pipe [1]. ▶ Remove the gas-air mixing pipe with fan [2]. Condens 7000 WP – 6721842519 (2022/03)
  • Page 33: Clean The Burner

    Cleaning the condensation catch pan After cleaning the heat exchanger, always check the condensation catch pan for contamination. ▶ Remove the cover of the condensation catch pan [1 + 2]. 0010040886-001 Fig. 36 Disassembly of the burner Condens 7000 WP – 6721842519 (2022/03)
  • Page 34: Cleaning The Siphon

    ▶ Check whether the neck of the siphon is properly connected to the ▶ Connect the plug on the fan. condensation catch pan. ▶ Install the air collector [1]. ▶ Tighten the union nut hand tight. Condens 7000 WP – 6721842519 (2022/03)
  • Page 35: Measure The Heat Exchanger Air Resistance [Rx]

    ▶ If the air resistance is still high: contact the Boschcustomer services. ▶ Start the Function check by setting the value to at least 50 %. ▶ Run the appliance 2 to 3 minutes. ▶ Deactivate Function check. Condens 7000 WP – 6721842519 (2022/03)
  • Page 36: Resetting The Maintenance Type

    ▶ Install the plug of the ionisation and ignition electrode. Gas hose 20,000 ▶ Start up the boiler. 1) Use only with cascade system. ▶ Check the flue gas tightness of the removed parts. Condens 7000 WP – 6721842519 (2022/03)
  • Page 37: Replacement Of The Gas/Air Check Valve

    ▶ 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]. Condens 7000 WP – 6721842519 (2022/03)
  • Page 38: Inspection And Maintenance Protocol (Checklist)

    Inspection or Measurement R – R  Measurement report for the air resistance measurement above the heat maintenance exchanger ( § 10.9, p. 35). Inspection or Measurement R – R  maintenance - initial commissioning Condens 7000 WP – 6721842519 (2022/03)
  • Page 39: Troubleshooting

    4. Connect the plug to the heating block temperature limiter correctly. 5. Check heating block temperature limiter, replace if required. Potable water circuit: Check that the potable water in the cylinder circuit is circulating correctly. Condens 7000 WP – 6721842519 (2022/03)
  • Page 40 242 - System fault boiler electronics / basic 1. Remedy contact problem. controller 2. If necessary, replace control device or boiler identification module/coding plug (Bosch contact customer service). Heat demand lower than energy supplied – Condens 7000 WP – 6721842519 (2022/03)
  • Page 41 1. Install boiler identification module/coding plug. controller 2. Connect plug to boiler identification module/coding plug. 3. Replace boiler identification module/coding plug (Bosch contact customer service). Boiler identification module or boiler Replace boiler identification module/coding plug (Bosch contact customer service). electronics faulty System fault boiler electronics / basic Replace control device/burner control unit.
  • Page 42 1. Check air/gas ratio control valve cabling. 2926 2. Check air/gas ratio control valve. If the fault persists following a reset, the control device or the air/gas ratio control valve is faulty and must be replaced. Condens 7000 WP – 6721842519 (2022/03)
  • Page 43 1. Perform reset. 2. Replace control device/burner control unit. 2946 V Incorrect code plug detected Replace boiler identification 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 CO setting.
  • Page 44: Faults That Are Not Displayed

    ▶ 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. Condens 7000 WP – 6721842519 (2022/03)
  • Page 45: Shutdown

    We use the best possible technology and materials for protecting the Warndon, Worcester WR4 9SW, United Kingdom environment taking account of economic considerations. process product and installation information, technical and connection data, communication data, product registration and client history data to provide Condens 7000 WP – 6721842519 (2022/03)
  • Page 46: Technical Data

    QR-Code. external service providers and/or Bosch affiliated enterprises. In some cases, but only if appropriate data protection is ensured, personal data might be transferred to recipients located outside of the European Technical data Economic Area.
  • Page 47: Technical Information And Reports

    J1 J2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 120/230 VAC 120/230 VAC 1 2 3 4 26 25 24 22 21 0010034254-002 Fig. 47 Wiring Diagram Condens 7000 WP – 6721842519 (2022/03)
  • Page 48: Data Relating To The Gas

    AT, DE, EE, HR, HU, LT, LU, LV, RS, SI, UA Sub-group E 30, 50 Natural gas E BG, CH, CZ, ES, RS, SK 37, 50 (G20) Sub-group E Table 28 Propane Natural gas E (G25) Natural gas L, Condens 7000 WP – 6721842519 (2022/03)
  • Page 49: Hydraulic Resistances

    Street, house number Telephone/fax Postcode, town System installer: Order number: Appliance type: (Complete a separate report for every appliance!) Serial number: Date of commissioning:  Individual appliance |  Cascade, number of devices: ..Condens 7000 WP – 6721842519 (2022/03)
  • Page 50  Low loss header, type:  Additional expansion vessel  Heating pump: Size/pre-charge pressure: Automatic air vent valve present?  Yes |  No  DHW cylinder/type/number/heating surface output:  System hydraulics checked, Notes: Condens 7000 WP – 6721842519 (2022/03)
  • Page 51 ___________________________________________________________ Name of service engineer __________________________________________________________ Date, user's signature Affix the test report here. ____________________________________________________________ Date, system installer's signature Table 31 Commissioning report Condens 7000 WP – 6721842519 (2022/03)
  • Page 52 Bosch Thermotechnik GmbH Junkersstrasse 20-24 D-73249 Wernau www.bosch-thermotechnology.com...

This manual is also suitable for:

Gc7000wp 125 23Gc7000wp 145 23

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