FEATURES
- Thermopolymer-covered stainless steel heat exchanger
- Fully pre-mixed burner
- Modulating gas valve with constant air-to-gas ratio
- Variable-speed combustion fan
- 3-speed pump with integrated air purging device
- Wide modulation range 1:9
- Possible connection of additional complex zones and heat pumps
- Multifunction relay for alarms or simple zones
- Efficiency rating according to 92/42/EEC: ★★★★
- NOx emission class (EN 297):5
PREPARED FOR CONNECTION TO
- External probe
- Open Therm Remote Control
- Zone management board for high and low temperature heating
- Solar board
4.3 
