City Class 40 F 
Forced Draught
Heating
Domestic Hot Water
CH and instant DHW production
- Expansion vessel cap. 10 Lt
- Copper main exchanger
- Electric three-way valve
- Brass hydraulic group
- ITS (Intelligent Temperature System)
- High quality circulation pump
- Stainless steel plate to plate DHW exchanger
Qn = Nominal heat input in CH • Qnw = Nominal heat input in DHW • η30 = Useful efficiency at 30% of the heat input
