Vaillant ecoTEC plus VCI 20/26CS/1-5 Condensing Gas Wall-Hung Boiler

1 ecoTEC plus VCI
1 actoSTOR VIH CL 20 S stratified cylinder
1 appliance holder
1 drain pipe and screw connection for the safety valve
1 condensate drain line
1 conversion kit for LPG
1 flexible hose for domestic hot water safety valve
1 adapter set for heating flow and return as well as
   domestic hot water flow and return
1 bag with small parts (mounting kit)
1 operating manual
1 installation/maintenance manual
1 air/flue gas system installation manual
1 mounting template
1 warranty card
1 product data sheet, energy efficiency label, various stickers

Standard efficiency 98% (Hs) / 109% (Hi)

Modulation up to 1:8

Self-adaptive combustion control for compensating gas quality fluctuations and for preventative appliance analysis

IoniDetect combustion control system for all natural gas types

New, modern design and compact appliance dimensions for easy heating replacement

Combi appliance with downstream stratified cylinder for high domestic hot water comfort

Integrated domestic hot water preparation via stainless steel heat exchanger with Aqua-Comfort-System plus

Illuminated graphic display with operation via touch controls

Display for setting and monitoring internal appliance functions as well as for operating the single-circuit controller sensoDIRECT 710

Comfort assurance program for reliable heat supply
Operation with up to 20% hydrogen, 100% bio-natural gas or 100% bio-LPG possible as standard
H2 Ready: Convertible for operation with 100% hydrogen*High-efficiency pump
Water pressure sensor, flow rate sensor, manometer, 10 liter expansion vessel, 20 liter stainless steel cylinder, high-efficiency stratified charging pump, DHW safety valve, 1 liter drinking water expansion vessel, connecting pipes and cylinder sensor
Integrated condensation heat exchanger made of stainless steel
Secondary heat exchanger made of stainless steel
eBUS interface
Illuminated graphic display with touch controls
Integrated diagnostic interface

*Applies to all ecoTEC plus 1-5 appliances produced from 01/01/2024. Conversion kit necessary, see manufacturer's declaration.