Bosch 28CDI Manuel de service

28CDi RSFWALL MOUNTED COMBINATION BOILER FOR CENTRAL HEATINGAND MAINS FED DOMESTIC HOT WATERINSTALLATION ANDSERVICING INSTRUCTIONSGC NUMBER 47 311 34

10Fig. 10. Functional flow diagram. MainsindicatorOn/OffswitchST8(LS)ST8(LR)ST8(NS)ST1CentrePinST15Pin LST1Pin LREL 1 REL 3HighLowREL4PumpFan(2 speed)

11Fig. 11. 230 V room thermostat connections.Fig. 13. 230 V room thermostat andprogrammer connections.Fig. 12. 230 V programmer connections.NS LSST8ST

The appliance is supplied suitable for fitting to a sealed system. Ifit is to be fitted to an open vent system refer to section 8.11.1 FLUE OPTIONS.Th

NOTE: READ THIS SECTION FULLY BEFORE COMMENCINGINSTALLATION11.2 GENERAL FITTING.Check that the appliance carton contains: Appliance, installersinstruc

ducts into the flue outlet turret.Pull back the air duct slightly to allow access to the flue duct.Drill through the flue duct and fix with the screws

Align the flue turret with the 4 holes on the appliance and screwdown. See Fig. 16.Refit the fan. Do not use any sealant on the joint. Replace theinne

12.1 SUMMARYThe appliance is dispatched with the controls set to provide amaximum output for domestic hot water of 28 kW and 24 kW forcentral heating.

Set the movable pointer on the pressure gauge to coincide withthe indicating pointer giving a permanent record of the setsystem pressure.If the pressu

13.1 Tell the user how to operate the appliance and hand overthe Users Instructions leaflet.13.2 Tell the user what to do if the heating system is not

assembly from the appliance. See Fig. 28. When refitting thehood ensure that the rear return edge passes under the lip at therear of the combustion ch

1.1 Gas Safety (Installation and Use) Regulations, October 1994all gas appliances must be installed by a competent person inaccordance with the above

AIR PRESSURE SWITCH2. Air Flow Pressure Switch.See Fig. 30.Check that the electricity supply to the appliance is turned off.Remove the cabinet front

13. Central Heating Sensor. See Fig. 31.Remove the inner casing cover as described in Section 14.3(b).Check that the electricity supply to the applian

2216. Short Parts ListAccessories For 28CDi RSF26 378 312 Gas Valve Junkers Bosch, Type CE 426 1 8 747 003 366 078 E00-720 Burner – Natural Gas Aeroma

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17 Operational Flow Diagrams24

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18. Fault Finding27Note: This fault-finding information is for guidance only. Worcester Heat Systems cannot be held responsible for costs incurred byp

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The boiler requires 3.35 m3/h (115 ft3/hr) of natural (G20) or 1.29m3/hr (46 ft3/hr or propane gas (G31). The gas meter and supplypipes must be capabl

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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

The data plate is fixed to the inner casing cover. Check data plateto ensure appliance has been adjusted for supply gas.3. Technical Data4AVAILABLE PU

4.1 The appliance may be installed in any room althoughparticular attention is drawn to the requirements of the currentI.E.E. Wiring Regulations BS 76

See Fig. 45.1 The flue must be installed as specified in BS 5440:Part 1.5.2 The terminal must not cause an obstruction nor thedischarge cause a nuisan

See Figs. 5, 6 and 6a.7.1 The system must comply with the requirements of BS 6798and BS 5449.7.2 The appliance must not be operated without the system

8.1 The size of the flow and return pipework is given in Section 3– Table 4. The components required to connect the appliance toan open vent system ar

See Figs. 8, 9, 10, 11, 12 and 13.10.1 MAINS SUPPLY.230 V ~, 50 Hz, 180 watts.External Fuse: 3A. Internal Fuses: T 2A (F1), and T 1.25A (F2).Spare in