Installation, Unvented | A.O. Smith 28 30 50 60 guide

3	Installation				is
Legend
a pressure-reducing valve	UNVENTED	b	l
(mandatory)	UNVENTED	b
(mandatory)
b expansion vessel (mandatory)			i
c T&P valve (mandatory)	j T		e
d stop valve (recommended)
e non-return valve (mandatory)	d
f circulation pump (optional)	h
g drain valve
h gas valve (mandatory)
i stop valve (mandatory)			c	d
j temperature gauge (optional)				f
k condensation drainage				e
k condensation drainage
(mandatory)				d
l hot water draw-off points
m pressure relief valve
(mandatory)				c
n water cistern				c
n water cistern				b
o float valve				b
o float valve
p 3-way venting valve
(recommended)					a
q overflow pipe				m e a i
a cold water supply				m e a i
a cold water supply
b hot water outlet			k	g	IMD-0139
b hot water outlet					IMD-0139
c circulation pipe	VENTED		p	o	a
d gas supply	VENTED		p	o	a
d gas supply				q
e flue gas discharge and air			l
supply		b	i	n
		b	i
		T		c
		j	e
			e
	d
	h
				i
			c
				a
				d e f d	c
			k	g
					IMD-0138
Figure 3.3 Installation diagrams

24	Instruction Manual BFC

Image 24

A.O. Smith 28 30 50 60 service manual Installation, Unvented

Contents

Release R.1.3 UK Your installer Copyright TrademarksLiability More informationPage Table of contents Gis Filling and draining Control panelStatus of the appliance Starting up and shutting down Service program TroubleshootingMaintenance frequency Maintenance Appendices Index Introduction What to do if you smell gas RegulationsAbout the appliance Target groups Maintenance Forms of notation Symbol Target groupRemark Introduction Overview of this DocumentOverview of this document Chapter Target groups Description Gis Functioning of the appliance Introduction Functional description of the applianceIntroduction Water temperature protection Gas control Pressure switch Ionisation rodAppliance’s heating cycle Protection for the appliance Water temperature protection Pressure switchGas control 3 Fan Safety of the instal- lation Unvented installationVented installation Ionisation rod Installation Introduction Packaging Environmental conditions Humidity and ambient temperature Maximum floor loadingWater composition Working clearances Environmental conditions Working clearances Technical specifications Plan and elevation of the appliance Dimensions Technical specificationsDime Description BFC Nsion Unit BFC VAC Installation diagram Gas dataGeneral G30-30 mbar butane Installation Unvented Water connections, Unvented Cold water side Hot water sideCirculation pipe Condensation drainage Water connections, Vented Gas connectionSee paragraph ’3.6.4 Condensation drainage’ See din Figure Dimension BFC Air supply and flue gas dischargeAir supply and flue gas discharge Specification Description Concentric wall flue terminal Concentric roof flue terminal specifications Concentric roof flue terminal Electrical connection PreparationPreparation Mains voltage Mains voltage Electrical connection Extra on mode switch Tank on Isolating TransformerContinuous pump Program-controlled pump Connecting extra error signal Alarm OUT Checking the supply Pressure and burnerChecking 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 13 Conversion of gas control Check the burner and supply pressure see paragraph Installation Filling the appliance Filling unvented installations Filling vented installationsFilling and draining Filling the appliance Installation diagrams F d c Filling and draining Draining unvented installations Draining vented installationsDraining the appliance Draining the appliance Gis Control panel Introduction Operating Explanation of the icons ON/OFF switch of ThermoControl Navigation buttonsPC connection Control panel Operating modes Error conditions Service condition Status of the applianceIntroduction Operating modes Error conditions Status of the appliance Service condition Service condition Gis Open the gas valve see ’ .1 Installation diagrams’ Starting up and shutting downIntroduction Starting up Shutting down Shut the appliance down for a brief period OFF mode Disconnect the appliance from the mainsShut the appliance down for a longer period Starting up and shutting down Appliance’s heating cycle Appliance’s heating cycle 12 Ignition Main menu Notational convention for menu-related instructions Switching into on mode Setting the water temperature Setting the water temperature via Setpoint MenuSetting water temperature during on mode Week programme Introduction Starting up and shutting down the week programChanging the appliance’s standard week program Remark Setting the switch-on time Setting switch-off timeExample Setting the water temperature Setting program-controlled pumpAdding times to a week program Week programme Deleting times from a week program 20 Period added 23 week program options Extra period Programming an extra period Settings Setting menu languageSettings Setting day and time Displaying appliance specifications Remark 46 Main menu Gis Service program Setting the hysteresisDisplaying the error history Setting the pump on/off Setting the service intervalService program Displaying the appliance history Setting the display contrast Setting the backlight timeSetting the display scroll speed Setting the display contrast Service program Troubleshooting General errorsDisplayed errors Troubleshooting table for general errors Symptom Cause Solution Remark Gas smell Gas leak Symptom Cause Solution Remark Display is off See appendix ’A.2 Electrical diagram BFC’Water leakage Troubleshooting table for displayed errors Symptom Cause Solution Remark Explosive ignitionInsufficient or no hot Water S02 blocking error S03 blocking errorS04 blocking error S05 blocking error S13 blocking error S14 blocking errorS15 blocking error Phase-sensitive. See ’3.10 Electrical connection’ F02 lock out error Appliance specifications’ How to bleed air from the gas line, and measure the supply F06 lock out error F07 lock out errorF08 lock out error ’3.9 Air supply and flue gas discharge’ Error F09 remains active in the event that the water F10 lock out error Release R.1.3 UK Release R.1.3 UK C04 blocking error E01 blocking errorE03 blocking error E04 blocking error Maintenance frequency Determining service interval Maintenance frequency Maintenance Remark Preparation for maintenance Starting up Maintenance Descaling and cleaning the tank Cleaning condensation water dischargeCleaning the burner Water-side mainte- nance Introduction Cleaning the orifice Cleaning heat exchanger12.4.3 Remark Finalising mainte- nance Warranty Certificate Warranty Certificate Appendices Week program card Electrical diagram Appendices Week program card Release R.1.3 UK IX Index Index 0306 IX Index