Description
For Heatsource and Whale heaters manufactured since February 2010, products have been fitted with an integrated air flow sensing device from Omron.  This is connected to the main control board using three little red wires and a JST plug at either end.  The HS2000 and the HS2000E uses a 150mm long connection and the HS2800, HS2000E as well as the Whale SH2211, SH2212, SH4312 and SH4412 will use a 300mm connection.
