Zehnder Three Position Switch for ComfoAir Standard Models (CCB) Zgs1 SUMMERboost® - supply and extract
Baker’s notes & crumb story
Description
Zehnder Three Position Switch for ComfoAir Standard Models (CCB) Zgs1 SUMMERboost® supply and extract SUMMERboost® supply and extract fans will run at full speed once Summer Bypass mode has been activated to combat overheating the fan has 6 adjustable speed settings which are used to ensure that whatever location the fan is fitted wall