On Saturday, 12 January 2019 13:31:13 UTC, John Rumm wrote:
On 12/01/2019 08:38, Harry Bloomfield wrote:
John Rumm pretended :

It needs a little bit of experimentation to set the profile the first
time - basically waiting for colder days and seeing if the system
still heats the place comfortably and quickly enough. If it doesn't,
then you just tweak it up to a steeper curve. It also helps if you
have appropriate rad sizes for the rooms, and the system is balanced.

Balanced?

I have always assumed there was no need to balance a system, where TRV's
are installed.

Many CH installers would probably argue that is the case... but it can
make a system less nice to live with. Especially if you have rooms that
don't get adequate flow until nearly all the other rads have throttled
on their TRVs, or worse, never get to set temp because the main stat has
turned the whole system off.

IMLE it's essential to balance the system with TRVs set to max temp before using the TRVs to improve balancing as needs change.


NT