Manuals / Potthof & Co / Household Appliance / Boiler

Potthof & Co 33kw, 24kw, 28kw manual 14.0Changing Components, 14.22P.C.B. Fig, Selector Switch Fig

Models: 24kw 28kw 33kw

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14.22P.C.B. (Fig. 102)

Control Box Cover

Fig. 101

P.C.B.

Selector

Switch

Facia

Selector Switch Knob

Fig. 102

14.0Changing Components

14.22P.C.B. (Fig. 102)

1. Note the settings of the temperature control knobs, rotate them fully anticlockwise and carefully pull them off the drive pins.

2. Completely undo the screws securing the control box cover and release the cover retaining barbs from their slots. Disengage the rear of the cover from the control box hinge pin (Fig. 101).

3. Note the position of all plugs and wires on the P.C.B. and disconnect them.

	4.	Undo the securing screws and remove the P.C.B. Transfer
	the control knob drive pins to the new P.C.B. and turn them
	fully anticlockwise.
	5.	Reassemble in reverse order, ensuring that the
	temperature controllers are reset to their previous positions.
	14.23 Selector Switch (Fig. 102)
	1.	Note the setting of the selector switch knob and carefully
	pull it off the facia.
Drive Pins	2. Completely undo the screws securing the control box
	cover and release the cover retaining barbs from their slots.
	Disengage the rear of the cover from the control box hinge
	pin (Fig. 101).
	3.	Note the position of the electrical connections and the
	orientation of the switch. Remove the electrical connections.
	4.	Remove the screws securing the switch to the facia panel.
	5.	Fit the new switch, ensuring that it is correctly positioned
	and reassemble in reverse order.
Temperature Control	Knobs

© Baxi Heating UK Ltd 2012

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Image 49

Potthof & Co 33kw, 24kw, 28kw manual 14.0Changing Components, 14.22P.C.B. Fig, Selector Switch Fig

Contents

Gold HE A Installation & Service InstructionsRange CondensingNatural Gas 0086ISO FM Scheme Members only Installer Notification GuidelinesLegislation General Safe Manual HandlingPreparation TechniqueCONTENTS 1.2Contents of Pack 1.0Introduction1.1Description Layout General Layout3.1Central Heating Mode Fig. 3.0Appliance Operation3.2Domestic Hot Water Mode Fig. 3.3Frost Protection Mode4.1Gold Combi 24, 28 & 33 HE A 4.0Technical DataPump - Available Head Dimensions 5.0 Dimensions and Fixings780mm At least6.1Information 6.0System Details6.2Central Heating Circuit 6.3Bypass6.0System Details 6.7Safety Pressure Relief Valve Fig.6.5System Filling and Pressurising Fig. 6.6Expansion Vessel Central Heating only6.8Domestic Hot Water Circuit Fig. 6.0System DetailsShowers 6.10Hard Water Areas7.1Location 7.0 Site Requirements7.2 Clearances Figs. 8 & 7.3Ventilation of Compartments 7.0Site Requirement7.4Gas Supply 7.5Electrical Supplyof pipe run 7.0Site RequirementsMinimum fallmetre 7.0Site RequirementMinimum fallmetre 7.0 Site Requirementmetre metre7.8Flue 7.0Site RequirementsR N M I F B L A G I Total equivalent length = A+B+C+2x90Bends 8.0Flue Options8.1Horizontal Flue Systems Horizontal FluesTotal Equivalent Length = Flue OptionsA+B+C+1x90Bend Vertical Flues8.0Flue Options 8.3Flue Accessories8.4Twin Flue Duct Adaptor 8.0Flue Options8.5Twin Flue Connection 8.0Flue Options 8.7Flue Dimensions8.6For Roof Terminals 8.8Flue Trim9.1 Plume Displacement Kit Fig. 9.0 Plume Displacement28/33 9.0Plume Displacement28/33 28/3350mm Plume DisplacementGeneral Fitting Notes 30mmPlume Displacement 30mm10.1Unpacking & Initial Preparation 10.0Installation10.2Flushing 10.3 10.0 InstallationFitting the Filling Loop Kit 10.4Fitting The Boiler 10.0Installation10.6Condensate Drain see section 10.7Fitting The Flue 10.0Installation10.7Fitting the Flue Cont 10.0 Installation10.8Making The Electrical Connections 10.0Installation10.9Preliminary Electrical Checks 11.1Commissioning the Boiler 11.0Commissioning11.0Commissioning 11.0Commissioning 11.3Setting the Timer12.1Completion 12.0Completion13 .1 Annual Servicing 13.0 Servicing13.2 Annual Servicing - InspectionElectrode Position 13.0 Servicing10 ±1 Annual Servicing - Inspection Cont14.1Igniter Fig. 14.0 Changing Components14.2Spark and Sensing Electrodes Fig. 14.3Fan Fig. 14.0Changing Components14.4Venturi Fig. 14.5Injector Fig.14.6Burner Fig. 14.0 Changing Components14.7Insulation Fig. 14.11Safety Thermostat Fig. 14.10Central Heating Temperature Sensor NTC Fig.14.12DHW Temperature Sensor NTC Fig. 14.0Changing Components14.14Pump - Head Only Fig. 14.0Changing Components14.15Pump - Complete Fig. 14.16Automatic Air Vent Fig.14.17Pressure Gauge Figs. 94 & 14.0Changing Components14.18Hall Effect Sensor Fig. 14.19Pressure Relief Valve Fig.14.0Changing Components 14.21Diverter Valve - Motor Unit & Assembly Fig.14.20Plate Heat Exchanger Fig. 14.0Changing Components 14.23 Selector Switch Fig.14.22P.C.B. Fig. 14.24Gas Valve Fig. 14.0Changing Components14.25Expansion Vessel Fig. 15.1Setting the Gas Valve CO2 check 15.0Setting the Gas Valve16.1Illustrated Wiring Diagram 16.0ElectricalControl PCB brownShort Parts List 17.0 Short Parts List315316 311 404419 422 400 415 503 50418.1Initial Fault Finding Checks 18.0Fault Finding18.2Error Codes 18.0 Fault Finding Turn Domestic Hot Water 18.0 Fault Finding Fault Finding Solutions SectionsElectrode Position 18.0 Fault Finding10 ±1 18.0 Fault Finding 60 Baxi Heating UK Ltd 19.0Pages for NotesBaxi Heating UK Ltd 19.0Pages for NotesCENTRAL HEATING MODE Measure and Record GAS BOILER SYSTEM COMMISSIONING CHECKLISTDOMESTIC HOT WATER MODE Measure and Record ALL INSTALLATIONSService Record Brooks House, Coventry Road, Warwick. CV34 4LL POTTERTONe&oe 7202085 - 07 5/12