Conversion of gas control | A.O. Smith 28 30 50 60 specification

is

Legend

gburner pressure regulator

hburner pressure control cap

iburner pressure control adjusting screw

jconnector

kflat sealing plate

lsupply pressure test nipple M burner pressure test nipple

Figure 3.13 Conversion of gas control

Conversion to a different gas category

k

l

m

j

h

g i

IMD-0079

nRemark

In the event the supply pressure for a gas category is the same as the burner pressure (see the gas tables in paragraph 3.4) then the gas control must be fitted with a flat sealing plate with cork gasket. A burner pressure that deviates in comparison to the supply pressure requires the use of a burner pressure regulator with rubber gasket. Each conversion kit contains all the necessary components.

12.If the flat sealing plate or burner pressure regulator need to be replaced:

-Unscrew the connector j from the gas control.

-If necessary, remove the flat sealing plate ! or burner pressure regulator 7.

-If necessary, fit the flat sealing plate or burner pressure regulator supplied with the conversion kit.

-Refit the connector to the gas control.

13.Refit the connector 1 of the glow igniter and ionisation rod to the controller.

14.Re-fit the three-part gas coupling b.

cNote

15.Check the burner and supply pressure (see paragraph 3.11).

16.Replace the plastic cover.

17.Remove the sticker showing the new gas category from the conversion kit, and attach it below the appliance’s rating plate. This clearly indicates that the appliance may no longer be run on the gas for which it was originally supplied.

18.Start the appliance (see paragraph 7.2).

Release R.1.3 UK

37

Image 37

A.O. Smith 28 30 50 60 service manual Conversion of gas control, Check the burner and supply pressure see paragraph

Contents

Release R.1.3 UK Your installer Trademarks CopyrightLiability More informationPage Gis Table of contents Control panel Filling and drainingStatus of the appliance Starting up and shutting down Troubleshooting Service programMaintenance frequency Maintenance Index Appendices What to do if you smell gas Regulations IntroductionAbout the appliance Symbol Target group Target groups Maintenance Forms of notationRemark Introduction Document Overview of thisOverview of this document Chapter Target groups Description Gis Introduction Functional description of the appliance Functioning of the applianceIntroduction Pressure switch Ionisation rod Water temperature protection Gas controlAppliance’s heating cycle Protection for the appliance Pressure switch Water temperature protectionGas control 3 Fan Unvented installation Safety of the instal- lationVented installation Ionisation rod Introduction Packaging Environmental conditions Installation Maximum floor loading Humidity and ambient temperatureWater composition Working clearances Working clearances Environmental conditions Plan and elevation of the appliance Technical specifications Technical specifications DimensionsDime Description BFC Nsion Unit BFC VAC Gas data Installation diagramGeneral G30-30 mbar butane Unvented Installation Hot water side Water connections, Unvented Cold water sideCirculation pipe Condensation drainage Gas connection Water connections, VentedSee paragraph ’3.6.4 Condensation drainage’ See din Figure Air supply and flue gas discharge Dimension BFCAir supply and flue gas discharge Concentric wall flue terminal Specification Description Concentric roof flue terminal Concentric roof flue terminal specifications Preparation Electrical connectionPreparation Mains voltage Electrical connection Mains voltage Isolating Transformer Extra on mode switch Tank onContinuous pump Program-controlled pump Checking the supply Pressure and burner Connecting extra error signal Alarm OUTChecking the supply pressure and burner pressure Appliance Main menu Conversion to a different gas category Conversion to a different gas category Remove the burner as complete assembly Check the burner and supply pressure see paragraph 13 Conversion of gas control Installation Filling vented installations Filling the appliance Filling unvented installationsFilling and draining Filling the appliance Filling and draining Installation diagrams F d c Draining vented installations Draining unvented installationsDraining the appliance Draining the appliance Gis Introduction Operating Control panel Navigation buttons Explanation of the icons ON/OFF switch of ThermoControlPC connection Control panel Status of the appliance Operating modes Error conditions Service conditionIntroduction Operating modes Status of the appliance Error conditions Service condition Service condition Gis Starting up and shutting down Open the gas valve see ’ .1 Installation diagrams’Introduction Starting up Shutting down Disconnect the appliance from the mains Shut the appliance down for a brief period OFF modeShut the appliance down for a longer period Starting up and shutting down Appliance’s heating cycle Appliance’s heating cycle 12 Ignition Notational convention for menu-related instructions Main menu Setting the water temperature via Setpoint Menu Switching into on mode Setting the water temperatureSetting water temperature during on mode Starting up and shutting down the week program Week programme IntroductionChanging the appliance’s standard week program Remark Setting switch-off time Setting the switch-on timeExample Setting program-controlled pump Setting the water temperatureAdding times to a week program Week programme 20 Period added Deleting times from a week program 23 week program options Programming an extra period Extra period Setting menu language SettingsSettings Displaying appliance specifications Remark Setting day and time 46 Main menu Gis Setting the hysteresis Service programDisplaying the error history Setting the service interval Setting the pump on/offService program Displaying the appliance history Setting the backlight time Setting the display contrastSetting the display scroll speed Setting the display contrast Service program General errors TroubleshootingDisplayed errors Symptom Cause Solution Remark Gas smell Gas leak Troubleshooting table for general errors See appendix ’A.2 Electrical diagram BFC’ Symptom Cause Solution Remark Display is offWater leakage Symptom Cause Solution Remark Explosive ignition Troubleshooting table for displayed errorsInsufficient or no hot Water S03 blocking error S02 blocking errorS04 blocking error S05 blocking error S14 blocking error S13 blocking errorS15 blocking error F02 lock out error Phase-sensitive. See ’3.10 Electrical connection’ Appliance specifications’ How to bleed air from the gas line, and measure the supply F07 lock out error F06 lock out errorF08 lock out error ’3.9 Air supply and flue gas discharge’ F10 lock out error Error F09 remains active in the event that the water Release R.1.3 UK Release R.1.3 UK E01 blocking error C04 blocking errorE03 blocking error E04 blocking error Determining service interval Maintenance frequency Maintenance frequency Remark Preparation for maintenance Maintenance Starting up Maintenance Cleaning condensation water discharge Descaling and cleaning the tankCleaning the burner Water-side mainte- nance Introduction Cleaning heat exchanger Cleaning the orifice12.4.3 Remark Finalising mainte- nance Warranty Certificate Warranty Certificate Week program card Appendices Appendices Electrical diagram Week program card Release R.1.3 UK Index IX Index IX Index 0306