Vaillant home combi Installation And Maintenance Instructions Manual

Vaillant home combi Installation And Maintenance Instructions Manual Manual pdf 18 page image

7 Start-up18 Installation and maintenance instructions HOME 0020224355_007.4 Avoiding danger arising from insufficientwater pressureThe filling pressure must be between 0.10 and 0.15 MPa(1.0 and 1.5 bar).NoteIf the heating flow temperature is shown in thedisplay, press and hold the and buttonsat the same time for longer than five seconds, ortemporarily deactivate heating mode in order todisplay the pressure.If the heating installation extends over several storeys,higher filling pressures may be required to avoid air enteringthe heating installation.If the water pressure falls below 0.05 MPa (0.5 bar), thevalue flashes in the display.If the water pressure falls below 0.03 MPa (0.3 bar), theproduct switches off. The display shows 0.0 MPa (0.0 bar).Fault F22 will be stored in the fault list.▶ Top up the water in the heating installation to start up theproduct again.◁ The pressure value flashes in the display until apressure of 0.05 MPa (0.5 bar) or higher has beenreached.7.5 Switching on the product▶ Switch on the product via the main switch installed on-site.7.6 Filling and purging the heating installationPreliminary work▶ Flush the heating installation through.111. Check the silicone hose connection (1) between thepump's automatic air vent and the hydraulic console.2. Remove the caps from the automatic air vents.3. Fill with water until the required filling pressure isreached.– Recommended filling pressure: 1 … 1.5 bar◁ The heating and hot water functions cannot be activ-ated.◁ The pressure value flashes in the display until apressure of 0.05 MPa (0.5 bar) or higher has beenreached.◁ An automatic air vent function is activated if thepressure exceeds 0.05 MPa (0.5 bar) for longer than15 seconds.4. Purge each radiator until the water escapes normally,and then retighten the system's purging valves.5. Check that all connections are leak-tight.Conditions: If the noise persists in the boiler▶ Purge the product again by activating check programme(P.07) and then (P.06).Check programmes – Overview (→ Page 30)7.7 Filling the condensate siphonC231A B1. Unclip the lower section of the siphon (1) from the up-per section of the siphon (2).2. Remove the float (3).3. Fill the lower section of the siphon with water up to 10mm below the upper edge of the condensate drain pipe-work.4. Re-insert the float (3).NoteCheck that the float is present in the con-densate siphon.5. Clip the lower section of the siphon (1) into the uppersection of the siphon (2).7.8 Filling the hot water circuit1. Open the water tap to fill the hot water circuit.2. Close the water tap once the appropriate volume ofwater has flowed out.◁ The hot water circuit is filled.3. Check all connections and the entire system for leak-tightness.