Flushing radiators unit Kamstrup 401

[MaoVi89]

At beginning I would like to say Hello to all members and I would like to introduce mysel as novice DIY plumber.

I managed to change radiator, top-up water and bleed it, also I would like to flush -replacing water in radiators in whole house, as it's 6 years old and water is stinky and yellow. I seen some videos about it. The system is quite unusual because it's supplied with hot water pipe with heat exchanging unit Kamstrup 402, but pipe routes should be similar I guess...

Can anyone help me which pipe / valves should be closed to avoid return debris from radiators to heat exchanging unit to divert them away.

Any advices more than welcome
Thank you for any help
Matt

 

[ShaunCorbs]

Your best option is to drain all the rads manually and then refill with fresh water and inhibitor

 

[MaoVi89]

That's I thought. Thanks for quick answer