Bosch 14/19CBI - Manuals

The flue system must be installed following the requirements ofBS5440:1.The standard flue kit length is 425 - 725mm. Extension kits forflues up to 3.0m are available.A rear flue suitable for walls from 220 - 375mm thick is availablewhich can be contained within the boiler casing.The terminal must no...

The system must comply with requirements of BS6798 andBS5449. General: The appliance is only suitable for connection to indirect fullypumped sealed and open vent systems. The minimum statichead is 1.2m and the maximum is 30m.The pump MUST be wired to the boiler control to ensure that the p u m p - o...

11 Fig.10. Boiler wiring diagram Flame Sense Electrode Spark Electrode Gas Valve Air pressure switch Overheat Thermostat Fan Control Board X1 X2 X3 X4 X5 X6 1 or ange 1 1 X7 User control potentiometer/switch black white br own gr ey violet re d violet re d black orange brown grey white NC NO COM Tem...

13 Fig. 12a. Boiler Assembly 9/14CBi Shown set for Rear Only flue kit 1. Inner case2. J bolts and wing nuts (2)3. Combustion chamber cover4. Burner5. Burner fixing screw6. Control knob7. Indicator lights8. Base/controls fixing screw9. Cabinet fixing screw10. Gas valve11. Spark electrode12. Burner in...

14 1. Inner case2. J bolts and wing nuts (2)3. Combustion chamber cover4. Burner5. Burner fixing screw6. Control knob7. Indicator lights8. Base/controls fixing screw9. Cabinet fixing screw10. Gas valve11. Spark electrode12. Burner injector13. Temperature sensor14. Overheat thermostat 15. Air pressur...

NOTE: READ THIS SECTION FULLY BEFORE COMMENCING THE INSTALLATION To install a boiler with a rear only flue refer to Section 11.1. To install a boiler with a telescopic horizontal flue kit referto Section 11.2. To install a boiler with a vertical flue refer to Section 11.2. and theliterature with the...

17 1 1. Flue hood2. Fan3. Sensing connection ( + ) 4. Sensing connection (—)5. Top outlet sealing plate6. Fan lead clip7. Fan fixing screws (2)8. Pressure tube junction9. — ve pressure tube 10. + ve pressure tube 11. — ve pressure tube extension12. + ve pressure tube extension 2 3 (+) (red tube) 4 (...

11.1.8 Completion of the Installation C h e c k t h a t a l l t h e g a s a n d wa t e r c o n n e c t i o n s h ave b e e ntightened. Lower the base plate/control panel. Refer to Fig. 17. The permanent mains and switched live supply to the boilermust come from the system junction box. Refer to Fig....

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 inwhich case a Ø150mm hole is required. (ii) Fix the wall mounting plate onto the wall. Ensure it is level before tightening the screws. (iii) The method of...

11.2.6 Telescopic Horizontal Flue Kit up to 750mm in Length (i) The standard flue can be telescopically adjusted to any length between 425mm and 725mm.It will only be necessary to cut the standard assembly if L<425mm. Cut the flue turret assembly and the terminal assembly by the same amount i.e L...

11.2.9 Vertical Adaptor for Horizontal Flues An adapter is available for an initial short section of vertical flue.Refer to Fig. 25.Measure and cut the flue as described in Section 11.2.7. T h e f i rs t , ve r t i c a l , s e c t i o n ( e q u i va l e n t to d i m e n s i o n X ) i smeasured from ...

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 the wall. Alignthe flue turret and push fully onto the spigot on the appliance. (ii) Slide the clamping ring into position so that the hole in the spigo...

C l e a n s i n g a n d I n h i b i t i n g a C e n t r a l H e a t i n g Installation in compliance with Benchmark It is accepted good practice in compliance with BS 7593, Pas 33 andBenchmark, to cleanse both an existing central heating system whenfitting a replacement boiler, and when fitting a ne...

12.8 Central Heating Check that the external controls are calling for heat to the heatingcircuit.Check that all the radiators heat up evenly. If necessary carefully vent. 1 2 . 9 B a l a n c e t h e s ys t e m to g i ve t h e c o r re c t t e m p e ra t u re differential. Refer to Table 3. Refer to ...

Important: Turn off the gas and electricity supplies and drain, where necessary, before replacing any components. 15.1 Always check for gas soundness where relevant and carry out functional checks as described in Section 12 Commissioning.Any O-ring, gasket or seal that appears damaged must bereplace...

15.4.1 Gas Valve NOTE: If the left hand clearance is >50mm then the gas valve can be replaced with the burner and combustion chamber coverin place by unscrewing the four extended screws at the manifoldon the outside of the inner casing. The manifold gasket should bereplaced if it is damaged or ha...

15.4.5 Control Board Lower the base plate/control assembly and carefully disconnectthe plug-in connector and all the electrical connections. Refer toFig. 35.Release the five clips and lift out the control board. Refer to Fig. 35.Pull out and replace, if necessary, a failed fuse. 15.4.6 Fan Remove th...

15.4.7 Air Flow Sensor Remove the fan as described in 14.3. Unscrew and withdraw,through the fan outlet, the air flow sensor. Refer to Fig .38 and38a.The detector is 'handed' - do not force it into place. 15.4.8 Temperature Sensor Remove the access panel to give improved access with minimumside clea...

15.4.11 Combustion Chamber Insulation T h e i n s u l a t i o n p a d s a re m a n u fa c t u re d f ro m a m a t e r i a l i naccordance with COSHH.Remove the casing, inner casing cover and combustion chambercover. Front Insulation: Unscrew the clamp at the top of the combustion chamber cover to re...

These instructions should only be read if converting appliancefrom Natural Gas to LPG or vice versa. Only components supplied by Worcester, Bosch Group should beused. Only competent persons should attempt the conversion. Conversion from Natural Gas to LPG should not be carried outon appliances insta...

34 18. Operational Flow Diagram M ains 230V supply BOILER HEA T DEMAND Pump continues fo r 4 minutes DEMAND OFF Boiler demand fr om sy stem junction bo x AND User contr ol knob ON Run f a n 20 seconds o r wa it fo r the end of the f a n o verrun Boiler demand light on Pump supply on Ignition sequenc...

35 19. Fault Finding NOTE : This fault finding information is for guidance only. Worcester, Bosch Group cannot be held responsible for costs incurred by persons not deemed to be competent. The electronic control for this boiler incorporates three lights: Boiler demand, flame on and lockout.These for...

FAIL POINT E 'BURNER LOCK OUT' Is the gas supply connected and at the correct pressure? Remove boiler casing. Reset and restart the boiler. Can a flame be seen through the spyglass? Note: there is a 20 second delay from fan on to spark. Yes No Rectify gas supply problem. No TURN OFF GAS SUPPLY. Remo...

39 FAIL POINT F Delivered primary water temperature always too hot. (Over 85°C) Delivered primary water temperature appears too low with control knob set to maximum. (Less than 75°C) Such a fault is likely to be caused by one or more of the following: Low gas pressure Partially blocked flue Partiall...

CONTROLS To comply with the Building Regulations, each section must have a tick in one or other of the boxes TIME & TEMPERATURE CONTROL TO HEATING ROOM T/STAT & PROGRAMMER/TIMER PROGRAMMABLE ROOMSTAT TIME & TEMPERATURE CONTROL TO HOT W ATER CYLINDER T/STAT & PROGRAMMER/TIMER COMBI BO...

SERVICE INTERVAL RECORD It is recommended that your heating system is serviced regularly and that you complete the appropriate Service Interval Record Below. Service Provider. Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described...

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 the interests of continued improvement. All goods sold are subject to our official Conditions of Sale, a copy of which may be obtained on application....