Wall-Hung Boiler Gas, Non-CondensingatmoTEC plus VU

Proven non condensing wall-hung boiler.

Compact and highly efficient non‑condensing boiler
Hot water preparation with the support of an indirect cylinder uniSTOR
Particularly durable thanks to the stainless steel heat exchanger
Easy adjustment via illuminated clear‑text display
Future‑proof thanks to green gas capability

Perfect for the quick and compact 1:1 replacement of single boilers in multi‑family house apartments, the atmoTEC plus non‑condensing gas boiler provides heating and domestic hot water when connected to an indirect Vaillant uniSTOR cylinder, with the capacity selected according to the number of users. Thanks to technical optimisations, it remains suitable for use in multi‑family houses in full compliance with the Ecodesign Directive (ErP). Its ability to operate with up to 100% bio‑natural gas makes meeting legal renewable energy requirements straightforward. Available in 20 kW and 24 kW outputs, the appliance is built with proven components and materials to ensure operational reliability and durability – making it a safe investment for many years.

Ideal for:

Heating

Technical data table overline

Technical data table headline

atmoTEC plus

VU 200/5-5

Power Output and Efficiency

Heat Output 80/60 °C (G20) (min - max)	Heat Output 80/60 °C (G20) (min - max)	7,6 - 19,7 kW
Gas Flow Rate, G20	Gas Flow Rate, G20	2,4 m³/h
Gas Flow Rate, G31	Gas Flow Rate, G31	1,57 kg/h

Combustion

Flue Gas Mass Flow Rate (G20) (min - max)	Flue Gas Mass Flow Rate (G20) (min - max)	13,8 - 14,6 g/s
Flue Gas Mass Flow Rate (G30) (min - max)	Flue Gas Mass Flow Rate (G30) (min - max)	13,3 - 14,0 g/s
Flue Gas Mass Flow Rate (G31) (min - max)	Flue Gas Mass Flow Rate (G31) (min - max)	13,0 - 14,6 g/s
Flue Gas Temperature (min - max)	Flue Gas Temperature (min - max)	90 - 115 °C

Electrical Connection

Electrical Power Consumption (max)	Electrical Power Consumption (max)	108 W
Electrical Voltage Supply	Electrical Voltage Supply	230 V (50 Hz)
IP Rating¹	IP Rating¹	IPX4D

Hydraulics

Pump Volume Flow / Remaining pressure head at ΔT=20 K	Pump Volume Flow / Remaining pressure head at ΔT=20 K	878 l/h / 240 mbar
Expansion Vessel Volume	Expansion Vessel Volume	10 l
Pressure Expansion Vessel	Pressure Expansion Vessel	0,75 bar

Connections

Connection Dimension Heating (Flow, Return)	Connection Dimension Heating (Flow, Return)	G ¾″
Connection Dimension Natural Gas	Connection Dimension Natural Gas	G ¾″
Connection Dimension Flue Gas	Connection Dimension Flue Gas	Ø 110 mm

Dimensions

Height / Width / Depth	Height / Width / Depth	800 mm / 440 mm / 338 mm
Weight	Weight	33 kg

Limitations

Operating Pressure Heating (max)	Operating Pressure Heating (max)	3 bar

Conformity-IDs

Gas Category	Gas Category	II2H3B/P

¹EN 60529