The application class covered by this guideline is listed in Table 1.


Table 1: Temperature profile during 50 years


Temperature [ ºC]LifetimeDesign coefficient
T operation7049 years1,5
T max801 year1,3
T malfunction95100 hours1,0


Note: This temperature profile is in accordance with application class 2 of

EN-ISO 21003-1.

For who?

Installers/plumbers, architects, contractors, municipalities, housing association