Hot water boost function

[Kimo]

Hi All

Hope you have some advice to see if I can cure 2 minor problems as the Valiant tech line was to say a waste of time as the 2nd tech advisor I spoke to was only there to answer the phone I think..

I have recently installed a new heating system all installed in the attic all works as expected but for 2 issues.

I have installed a Vaillant Eco tech plus system boiler connected to a Telford Tempest cylinder 2 x 2 port valves and 230 volt tank stat that was supplied with cylinder

Wiring is all via a Vaillant VR 66 control centre and all controlled by a Vaillant VRF 350f Now all programs work on the controller except the cylinder boost function.
If I select this function it activate for a few seconds then returns to the previous function ie auto/summer mode.

I can boost the hot water by selecting the comfort mode, but this has it draw backs as if I don't switch mode once water is charged it then bring in the heating as it is supposed to do but this may not be required.

Now could this be that no NTC sensor is fitted as I understood that theses where specific to the Vaillant unistor cylinder. As I stated earlier I fitted a 23o volt stat supplied with the cylinder.

 

[ShaunCorbs]

@Harvest Fields @king of pipes

 

[rpm]

Are these electric only boilers?

 

[Kimo]

No. Gas fired.

 

[rpm]

No. Gas fired.

Shaun you`re slacking tonight.

 

[ShaunCorbs]

Shaun you`re slacking tonight.

?

 

[rpm]

You normally jump on self installs

 

[ShaunCorbs]

You normally jump on self installs

Might not be but

Op who installed it ?

 

[rpm]

Hi All

Hope you have some advice to see if I can cure 2 minor problems as the Valiant tech line was to say a waste of time as the 2nd tech advisor I spoke to was only there to answer the phone I think..

I have recently installed a new heating system all installed in the attic all works as expected but for 2 issues.

I have installed a Vaillant Eco tech plus system boiler connected to a Telford Tempest cylinder

Might not be but

Op who installed it ?

 

[Harvest Fields]

Evening. Who fitted the boiler for you mate?

 

[Kimo]

My plumber friend and I safe safe and invented cylinder etc all commisioned and warranty by vaillant etc building control certicated. Am in the building trade no novice.

Just require some other thoughts as to why the cylinder boost Function on the controller will not stay activated.

Vaillant tech support a waste of time just told me it should work.

Also according to the operating instructions for the boiler If a controller is fitted you set the Maximum values on the boiler for the flow temperature and adjust on the controller but this is not possible. When I spoke to vaillant tech they said it cannot be done and has to be set on the boiler when I read this out direct from operating instructions he was blank. So a the boiler is in the attic it would have been ideal to adjust the flow temp a few degrees here and there on the controller

 

[Harvest Fields]

Send your gas safe number to Shaun above and we can discuss mate.

 

[Kimo]

My plumber mate gas safe number is
576362

 

[ShaunCorbs]

He's not unvented qualified well not on gas safe

If he has his paperwork get him to send it to gas safe better in the long run as most people look on there for people

 

[Kimo]

If