Logic combi 24 - always on for central heating?

[marc06]

Hi all,

I am a new tenant (and new in Ireland by the way) where a "Logic combi 24" boiler is installed, to provide both domestic hot water and central heating.

It is plugged on a "CTC eziprog 1" programmer.

When the programmer is "on", even when all the radiators of the apartment are switched off, the boiler stays in status "C" mode, which means:

The boiler has a call for central heating but the appliance has reached the desired
temperature set on the boiler.​

And it looks like the boiler is continuously switched on, if because of the noise produced (more noise than in standby mode)

What I expect, is that when all the radiators are switched off, there is no "call for central heating" and the boiler should stay in status "0":

The boiler is in standby mode awaiting either a central heating call or hot water demand.​

Am I wrong somewhere? I am just afraid of an abnormal behavior hence a huge gas consumption.

The manual of the boiler is available here:
https://www.bristol.gov.uk/document...iler.pdf/1dc39670-3bfa-4196-ac3b-cd2c0f24411c

Thank you for any help!

 

[ianmcd]

Turn the dial furthest right to the picture of only the HW tap not the setting with a radiator and a HW tap, and then the dial furthest left switch the pre heat to off and that should solve your problem

 

[HootingOwl]

Turn the programmer to off. The programmer only controls the radiators. Hot water is independent of the programmer.

 

[marc06]

This is exactly the information I was looking for, thank you so much!

 

[shambolic]

The C also stays on for up to 6 minutes after programmer turned off until the pump and fan overrun have switched off.
Then it turns to 0