Draining unvented Installations, Appliance | A.O. Smith SGE guide

6

Draining

gis

	Legend		11. service stop valve (recommended) 38. solar heating system pump station
	Only applicable numbers are		12. temperature gauge	(modulating - mandatory)
	mentioned.		(recommended)	A. cold water supply
	1.	pressure-reducing valve	13. condensation drainage	B. hot water supply
		(mandatory if the mains water	(mandatory)	C. circulation pipe
		pressure exceeds 8 bar)	14. hot water draw-off points	D. gas supply
	3.	T&P valve (mandatory)	15. expansion valve (mandatory)	E. overflow pipe
	4.	stop valve (recommended in pipe C 16. expansion vessel (mandatory)		F. heat exchanger supply
	5.	and mandatory in pipe A)	17. 3-way aeration valve	G. heat exchanger return
		non-return valve (mandatory)	(recommended)	H. overflow safety
	6.	circulation pump (optional)	18. water tank
				S1.collector sensor (mandatory)
	9.	drain valve (mandatory)	19. float valve
				S2.tank sensor (mandatory)
	10. manual gas valve (mandatory)		23. pressure valve (mandatory)
				S4.heat exchanger discharge sensor
	20. pressure valve (mandatory)		37. combined Q/T sensor (optional)
				(optional)

26. air bleed (mandatory)

6.1Draining unvented

installations

1. Activate the MENU with .

MENU »OFF ^ ON

È WEEK PROGRAM

2.	Position the cursor in front of OFF.
3.	Confirm OFF with	.
4.	Wait until the fan has stopped. The symbol is then dimmed.

	Caution
	Failure to wait until the fan stops purging can cause damage to the

appliance.

5.Switch the appliance OFF (position 0) using the ON/OFF switch on the control panel.

6.Isolate the water heater from the power supply by putting the isolator between the appliance and the mains power supply to position 0.

7.Shut off the gas supply (10).

8.Close the stop valve (11) in the hot water pipe.

9.Close the supply valve (4) in the cold water supply (A).

10.Open the drain valve (9).

11.Bleed the appliance (or installation) so that it drains completely.

54	Instruction manual SGE

Image 54

A.O. Smith SGE Draining unvented Installations, Activate the Menu with, Position the cursor in front of OFF, Appliance

Contents

Installation User Your installer Liability Read this manual carefullyTrademarks More information Gis Table of contents Maintenance frequency Service programTroubleshooting Status of the appliance Performing maintenance Warranty certificateAppendices Table of contents Introduction About the applianceWhat to do if you smell gas Regulations Target groups Maintenance Forms of notation Symbol Target groupIntroduction Overview of this document Chapter Target groups Description Gis Working principle of the appliance Introduction General working principle of the applianceTopics covered in this chapter Other settings that govern the control behaviour are Appliances heating cycleWorking principle of the appliance Pressure switch Flame probe = time = Temperature 45 oC = Minimum tap water temperatureAppliance water temperature protection Gas valve Protection for the appliance Introduction Gas valve Appliance water temperature protectionPressure switch 4 Fan Vented installation Safety of the installationUnvented installation Flame probe Expansion valve Fluid temperatureSafety of the solar heating system Expansion vessel Pump of the solar heating system Environmental InstallationPackaging Conditions Air humidity and ambient temperature Appliance maximum floor loadWater composition Working clearances Appliance is supplied without accessories. Check Technical specificationsDimensions of the appliance See the table Dime Description SGE Nsion General and electrical specifications Gas data Gas category 3+ G31 37 mbar Installation diagram Hot water side See C in the installation diagram 3.5 Installation diagramWater connections, Unvented Cold water side Circulation pipe Water connections, Vented Condensation drainage Requirements for flue gas discharge materials Gas connectionAir supply and flue Introduction This section covers the following subjects Types of appliances Concentric connections Specifications Following example illustrates how to use the tablePractical example of concentric chimney flue Appliance Diameter Maximum Parallel connectionsSubject Description Total length Bend Practical example of parallel chimney flue Appliance with parallel flue gas discharge material Solar heating system Preparation Connecting the mains voltageConnecting communication cable to solar heating system Electrical connection 11.2 Preparation Isolating transformer Connecting the mains voltageConnecting continuous pump 11.2 Preparation Connecting an extra error signal Alarm OUT Connecting a program-controlled pumpConnecting an extra on mode switch Tank on Connecting extra head pump Connecting Q/T sensor Connecting the mains power Connecting pump station modulating pumpConnecting solar collector Connecting extra head pump Connecting tank sensorConnecting communication cable Connecting Q/T sensor Checking the supply pressure and burner pressure Procedure to check pressures Adjusting the pressure Gas dataFinish off 3.13.4 Finalising 13.4 Finalising Orifice assembly Conversion to a different gas category Burner pressure regulator Blank plate Gas control connector Conversion to a different gas categoryPage Conversion to a different gas category Filling Filling the appliance Filling unvented installations Filling vented installationsFilling Flushing with water Filling with glycol Gis Draining Activate the Menu with Draining unvented InstallationsDraining Position the cursor in front of OFF Draining vented installations Draining solar heating system Draining glycol-filled systemPosition the cursor in front of OFF Confirm OFF with Gis Controls Electronic controller ON/OFF switchControl panel Meaning of icons Navigation buttons PC connectionControl panel Operating modes Error conditions Service condition Status of the applianceOperating modes Collector temperature warning Service conditionError conditions Q/T Sensor warning Starting the appliance Open 3.5 Installation diagram the manual gas valveStarting and running Starting the appliance Appliances heating cycle Starting and running Icon is activated Message PRE Purge appearsIcon is activated Message Ignition appears Shutting the appliance down for a long period Shut the appliance down for a brief period OFF modeShutting down Electrically isolating the appliance Shutting down Main menu Switching on the on modeSet the water temperature via Notational convention for menu-related instructions Starting and stopping the week program Setting water temperature during on modeWeek program Changing the appliances standard week program Week program setting the water temperature Week program setting the switch- on timeWeek program setting the switch- off time Bring the cursor to SU Confirm with Confirm with Display shown in the figure will appear Week program setting the program- controlled pumpAdding times to a week program Scroll with to Start Operation Confirm with Extra period Confirm with Or use to cancelDeleting times from a week program To delete a period, proceed as follows Setting the water temperature Setting the switch-on timeSetting the switch-off time Setting the program-controlled pump Setting day and time SettingsSetting menu language Adjustable settings Table shows the correct settings Displaying appliance specifications SGEConfirm the minute setting with Scroll with to Specifications Confirm with Displaying the error history Service programSetting the hysteresis Appliance Default Range Setting legionella prevention Switching the pump on or offSetting the service interval Switching legionella prevention on and off Setting the heating fluid type in the solar heating system Solar heating system configurationSetting the drain-back tank Setting the solar limit temperature Setting the QT sensor yes/no Setting the central heating configurationReading the energy contribution of the solar heating system Displayed errors TroubleshootingGeneral errors Distinction is made between Display is off Troubleshooting table for general errorsSymptom Cause Solution Remark Gas smell Start the appliance up 9 Starting and running Hot water supply Symptom Cause Solution Remark Water leakageExplosive ignition Insufficient or absent Symptom Cause Solution Remark Troubleshooting table for displayed errors Displayed errors S12 blocking error Code + Description Cause Solution RemarkS11 blocking error S13 blocking error Code + Description Cause Solution Remark S18 blocking error F01 blocking errorF02 lock out error Maintenance 15.2 Preparation for maintenance. If there is Code + Description Cause Solution Remark F03 lock out errorFails to work correctly Engineer Pressure switch not Closing No gas Code + Description Cause Solution Remark F04 lock out errorF05 lock out error Area F08 lock out error Code + Description Cause Solution Remark F06 lock out errorF07 lock out error Safety relay Engineer Code + Description Cause Solution Remark F10 lock out error F11 blocking error C04 blocking error Code + Description Cause Solution Remark C02 lock out errorC03 blocking error Selected appliance E03 lock-out error Code + Description Cause Solution Remark E01 blocking errorTemperature E04 lock-out error Displayed warnings Maintenance, based on the number of burning hours Maintenance frequencyBest maintenance frequency can be determined Standard setting is 500 burning hours Maintenance frequency Performing maintenance Introduction Preparation for maintenanceWait until the fan has stopped. The icon is then dimmed Performing maintenance Checking the anodes Water-side maintenance IntroductionDescaling and cleaning the tank Following steps must be carried out on the water side Clean the burners Cleaning condensation water dischargeGas-side maintenance Introduction Clean the orifices 16.2 Tank warranty Warranty certificate16.1 General warranty Collector warranty Conditions for Installation and use Warranty certificate Menu structure of the main menu 17.2 Menu structure AppendicesThis appendix contains Heating system Menu structure Appendices 101 Electrical diagram for the appliance Electrical diagram Controller 0/I switch Extra on mode switchExtra error signal connection Temperature sensor T1 top Electrical diagram, solar heating system Solar system electrical diagram legend 106 Tset Pump Week program cardPeriod Example Period 108 Index 109 0308 Index