Honeywell CT230-GA Installation Manual page 12

Installation Guide
Testing the ground fault protection
To ensure the ground fault protection on each CT230 linked unit is always in working order, test it after
installation and on a monthly basis thereafter.
Increase the setpoint temperature on the master thermostat above the mea-
sured temperature in order to activate the heating system.
Press the TEST button.
• If the TEST light does NOT turn On, the test has failed. Cut power to the
heating system at the main electrical panel, have an electrician verify the
installation and, if necessary, replace the CT230 linked unit.
• If the TEST light turns on, continue the test.
Switch the CT230 linked unit to OFF then back to ON.
• If the TEST light turns off, the test has passed. Set the master thermostat back to the desired
temperature. The test is now completed.
• If the TEST light remains on, the test has failed. Continue with the rest of the procedure.
Switch the circuit breaker (at the service panel) of the heating system to off then back to on.
Repeat the test. If the test fails again, cut power to the heating system at the main electrical panel,
have an electrician verify the installation and, if necessary, replace the CT230 linked unit.
10
TEST button/light