iMass Electronic Control for Instantaneous Water Heater – S5715
Dimensions 110mm (L) x 70mm (W) x35mm (D)
Part number S5715
The electronic control is effectively the main control centre of the water heater. It receives information from the water-temperature and flow sensors and controls the gas modulation system to achieve the selected hot-water temperature. The system also monitors operating conditions and incorporates fault diagnostics and service functions.
(Number 4 on the wiring diagram)