Saunier-Duval-Thema-Classic-F24e-Installation-manual

12 CommissioningImportant: The commissioning and first firing of the boilermust only be done by a competant person.Gas installationIf conversion from G20 to 30 or 31 is required, refer to section13.It is recommended that any air is purged from the supply at thegas purge point on the gas valve, see diagram 12.1.Filling the systemThe following steps 1 - 8, show how to fill the system.Air in pipesImportant: A central heating system can not operate correctlyunless it is filled with water and air bled from the system. Ifthese conditions are not met the system may be noisy.Bleed the air in the radiators and adjust the pressure if systemrequires. If the system requires filling to often this may be dueto minor leaks or corrosion in the system.BURNERPRESSUREPOINT97961.Make sure that:• The boiler is connected to theelectrical supply.• The gas service cock is open.Turn the switch OFF ( 0 )11898GASPURGEPOINTF24E shownDiagram 12.12. • Open the three water isolating valves.Note: Isolating valves are shown in the: OFF positionHEATINGRETURNF24E shownCOLDWATER IN(F24E Only)HEATINGFLOWDOMESTIC HOTWATER OUT(F24E Only)GAS SERVICECOCK3.• Undo cap on automatic air vent on top ofpump and leave undone.98104. • Turn the switch ON ( I )• F24E Only Open the tap on the filling device• Fill the system until the pressure indicated onthe display is 1 bar. Close filling device.9792➜➜NOTE: On initial fill there may be a small dischargeof water from the Reduced Pressure Zone valve27 4000124050-2