On/Off-Switch Elements; Automatic Circuit Protectors - A.O. Smith ITES Series Installation, User And Service Manual

6.2 ON/OFF-switch
elements
6.3 Automatic circuit
protectors
78
Safety thermostat has been resetted.
On the control unit, each element has its own ON/OFF-switch with indicator light. To
activate an element, the switch needs to be put in position I. By activating the element
the indicator light will be lit.

ON/OFF-switch elements

Note
The operation of an element depends on the actual water temperature, as measured by
the thermostat. An element can also be de-activated based on the water temperature.
The control unit is equipped with two automatic circuit protectors. The primary side
(400 kV) of the control current transformed has an automatic fuse and the control circuit
(230 V ) also has an automatic fuse.
AC
Installation-, user and service manual