I recently had a ecoTEC Plus 418 boiler installed which was connected up to my existing Honeywell controls (Y6630D Room Stat, CF9000 Programmer, Tank Stat and 2x2-Port valves) and open vented system / cylinder.
Vaillant suggests their controls will be 5-10% more efficient, to take advantage of the features and efficiencies of the full Vaillant system, I’m thinking of upgrading my controls to the following:
After reading up (some great help and posts on here!) and all the relevant installation manuals, I thought I will do the following:
1) How much difference will the enhanced boiler modulating make (via the VR392/VR10) over just changing the room stat for a programmable one? i.e. is the 5-10% Vaillant quotes mainly down to the programmable times / temp or the modulating?
2) If I install the Vaillant solution, are there any particular installer settings on either the boiler or controls I need to be aware of / change? **
3) Is there anything else I should be aware of?
** I’ve read and think I understand the VR65, VR392 & ecoTEC 418 installation manuals, however any pointers / tips to watch out for from anyone that’s changed over to these controls would be most welcome!
Vaillant suggests their controls will be 5-10% more efficient, to take advantage of the features and efficiencies of the full Vaillant system, I’m thinking of upgrading my controls to the following:
- - VRT392 Programmable Room Stat
- VR65 Control Centre
- VR10 NTC
After reading up (some great help and posts on here!) and all the relevant installation manuals, I thought I will do the following:
- - Use existing cabling for eBUS (there will be <10m running along side 230v)
- Cut an extra slot in the tank foam to fit the NTC, using heatsink paste and secured/covered
- Keep existing tank stat wired in-line with DHW 2-port valve as a “fail safe” (set @ 70 deg)
- - More efficient boiler modulating for HW
- HW temperature can be set via VR392
- HW boost available
- Daily programmable times & temp for CH (& HW)
1) How much difference will the enhanced boiler modulating make (via the VR392/VR10) over just changing the room stat for a programmable one? i.e. is the 5-10% Vaillant quotes mainly down to the programmable times / temp or the modulating?
2) If I install the Vaillant solution, are there any particular installer settings on either the boiler or controls I need to be aware of / change? **
3) Is there anything else I should be aware of?
** I’ve read and think I understand the VR65, VR392 & ecoTEC 418 installation manuals, however any pointers / tips to watch out for from anyone that’s changed over to these controls would be most welcome!