Bosch 14/19CBI User Manual

9/14CBi, 14/19CBi, 19/24CBiWALL MOUNTED BOILERS FOR CENTRAL HEATINGAND INDIRECT SUPPLY OF DOMESTIC HOT WATERINSTALLATION ANDSERVICING INSTRUCTIONSThis

The gas supplier must be contacted to check the suitability ofthe appliance for the local gas supply conditions beforeconnecting the appliance. The 19

11Fig.10. Boiler wiring diagram Flame SenseElectrodeSpark ElectrodeGas ValveAir pressureswitchOverheatThermostatFanControl BoardX1X2X3X4X5X61orange11X

12Fig.11 . System wiring diagram Control BoardX1Pump LPump NPermanent NPermanent LSwitched L(Boiler Demand)Earth postCable clampOUTSIDE OF BOILERINSID

13Fig. 12a. Boiler Assembly 9/14CBiShown set for Rear Only flue kit1. Inner case2. J bolts and wing nuts (2)3. Combustion chamber cover4.

141. Inner case2. J bolts and wing nuts (2)3. Combustion chamber cover4. Burner5. Burner fixing screw6. Control knob7. Indicator

NOTE: READ THIS SECTION FULLY BEFORE COMMENCING THEINSTALLATIONTo install a boiler with a rear only flue refer to Section 11.1.To install a boiler wit

1611.1.5 Boiler Preparation(i) Remove the appliance casing by releasing the screw at the centre base. Disconnect the earth connection at the base and

1711. Flue hood2. Fan3. Sensing connection (+)4. Sensing connection (—)5. Top outlet sealing plate6. Fan lead clip7. Fan fixing s

11.1.8 Completion of the InstallationCheck that all the gas and water connections have beentightened. Lower the base plate/control panel. Refer to Fi

11.2.5 Flue Preparation(i) Drill the hole for the flue at Ø110mm unless the optional internal fitting kit (WHS part No. 7 716 191 019) is used inwhi

1.1 Gas Safety (Installation & Use) Regulations 1998.It is the law that all gas appliances are installed by a competentperson in accordance with t

11.2.6 Telescopic Horizontal Flue Kit up to750mm in Length(i) The standard flue can be telescopically adjusted to any length between 42

11.2.9 Vertical Adaptor for Horizontal FluesAn adapter is available for an initial short section of vertical flue.Refer to Fig. 25.Measure and cut th

11.2.12 Installation of Flue onto Boiler(i) Fit the clamping ring around the flue spigot but leave loose.From the inside push the assembly through th

Cleansing and Inhibiting a Central HeatingInstallation in compliance with BenchmarkIt is accepted good practice in compliance with BS 7593, Pas 33 and

12.8 Central HeatingCheck that the external controls are calling for heat to the heatingcircuit.Check that all the radiators heat up evenly. If necess

Fan - Horizontal Flue. Remove the combustionchamber cover. Carefully pull off the electrical connections andthe tubes from the air flow detector. Loo

Important: Turn off the gas and electricity supplies and drain,where necessary, before replacing any components.15.1 Always check for gas soundness wh

27Fig. 34 . Inner Casing - Gas and Electric Controls. 9/14CBi shown.2311. Inner casing2. J bolts and wing nuts (2)3. Combustion chamber cove

15.4.1 Gas ValveNOTE: If the left hand clearance is >50mm then the gas valvecan be replaced with the burner and combustion chamber coverin place by

15.4.5 Control BoardLower the base plate/control assembly and carefully disconnectthe plug-in connector and all the electrical connections. Refer toFi

working at a gauge pressure of at least 0.35bar above the reliefvalve setting if on a sealed system.Where a storage system will not have a vent to atm

15.4.7 Air Flow SensorRemove the fan as described in 14.3. Unscrew and withdraw,through the fan outlet, the air flow sensor. Refer to Fig .38 and38a.T

15.4.11 Combustion Chamber InsulationThe insulation pads are manufactured from a material inaccordance with COSHH.Remove the casing, inner casing cove

These instructions should only be read if converting appliancefrom Natural Gas to LPG or vice versa.Only components supplied by Worcester, Bosch Group

1 E60-473 Burner Assembly NG 9/14CBi 1 8 716 121 773 0Burner Assembly LPG 9/14CBi 1 8 716 103 210 02 E60-474 Burner Assembly NG 14/19, 19/24CBi 1

3418. Operational Flow DiagramMains 230VsupplyBOILERHEATDEMANDPump continuesfor4minutesDEMANDOFFBoiler demandfrom systemjunction boxANDUser controlkno

3519. Fault FindingNOTE: This fault finding information is for guidance only. Worcester, Bosch Group cannot be held responsible for costs incurred byp

36Remove connectorX5 and testresistance betweenthe red and violetcables. Is theresistance between1 kohm and 30 kohm?FAIL POINT ANoYesNOTE: It is norma

FAIL POINT CIs the boiler in a very coldenvironmenti.e is the primary watertemperature below 5°C? Boiler is running in'Autofroststat' mode.Y

FAIL POINT E 'BURNER LOCKOUT'Is the gas supplyconnected and at thecorrect pressure?Remove boiler casing.Reset and restart the boiler. Can a

39FAIL POINT FDelivered primary watertemperature always too hot.(Over 85°C)Delivered primary watertemperature appears toolow with control knob set tom

The data plate is fixed to the inner casing cover.43. Technical DataHYDRAULIC RESISTANCEBOILER OUTPUT RESISTANCE MIN. FLOW RATEkW Metres

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CONTROLS To comply with the Building Regulations, each section must have a tick in one or other of the boxesTIME & TEMPERATURE CONTROL TO HEATING

SERVICE INTERVAL RECORDIt is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record

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This booklet is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in

5GAS SUPPLY SYSTEM - BASED ON NG (G20)TOTAL LENGTH OF GAS SUPPLY PIPE (COPPER) metres3 6 9 12MAXIMUM GAS DISCHARGE RATE - PRESSUR

The appliance may be installed in any room subject to therequirements of the current IEE regulations and, in Scotland, therelevant electrical provisio

The flue system must be installed following the requirements ofBS5440:1.The standard flue kit length is 425 - 725mm. Extension kits forflues up to 3.0

The system must comply with requirements of BS6798 andBS5449.General:The appliance is only suitable for connection to indirect fullypumped sealed and

Heating returnNon returnvalveNon returnvalveHose unionTest cockTemporary hoseStop cockAutoair ventHeating returnStopcockFill pointNon returnvalveMake