Ground Fault Protection (Gfci) - Honeywell Home CT230-GA Installation Manual

CT230-GA / CT230-GB

Ground fault protection (GFCI)

The CT230 linked unit, with built-in ground fault protection, is different from conventional
thermostats. In the event of a ground fault, the ground fault protection mechanism on the CT230
linked unit will trip and quickly stop the flow of electricity to prevent serious injury.
Definition of a ground fault
Instead of following its normal safe path, electricity passes through a person's body to reach the
ground. For example, a defective floor heating mat can cause a ground fault.
Ground fault protection, does not protect against circuit overloads, short circuits, or electrical
shocks. For example, you can still receive an electrical shock if you touch bare wires while standing
on a non-conducting surface such as a wood floor.
Ground fault protection reset
When the ground fault protection mechanism trips, the TEST light is On (red). To reset the ground
fault protection, switch the CT230 linked unit to OFF and back to ON. The TEST light will turn off if
the ground fault protection is functioning properly.
End of Life
If the TEST light is flashing permanently the device must be replaced.
9