How to bleed Y plan system?

[trusty]

hi everyone,

I’ve just changed my circulation pump and I only noticed before re-fitting that the diverting valve was set on HW.

So I must’ve drained the HW side to just below pump level?

Then I refilled and turned it on.

Is there any way I must bleed it now as it’s the HW side?

Sorry if stupid question, thanks!

 

[ShaunCorbs]

Put valve into mid port

Bleed any air vents around the cylinder area

Turn system back on electrical put port valve off manual

Turn both heating and hot water on

Let pump run for a while then bleed pump via centre screw

Then bleed pump

Leave 24 hours unless problems

And air any air vents again

 

[heatservice]

Just remember: air always rise above the water that is why air vents are placed at the high points, if you 3 port valve is a spring return type it will return to the HW position when power is off.