Maintenance and Troubleshooting
21
Fan Replacement
1.
Turn off the intake fan breaker and unplug any electrical connections.
2.
Remove the screws securing the fan capacitor.
3.
Disconnect the fan cord from the capacitor.
4.
Remove the nuts securing the filter brackets to the fan enclosure.
5.
Remove the filter bracket.
6.
Remove the screws connecting the fan to the fan enclosure.
7.
Remove the failed ventilation fan.
To replace the fan, follow the previous steps in reverse order.
5.12 Traffic Cabinet Maintenance
Traffic Cabinet Fan and Thermostat Assembly Replacement
1.
Open the panelboard and turn off the circuit breaker supplying power to the fan and
thermostat assembly.
2.
Disconnect the fan’s power cord.
3.
Remove the hardware securing the finger guard and fan to the assembly bracket and
remove the fan.
4.
Attach the new fan to the bracket and secure it with the hardware removed in
Step 3
.
Note the airflow orientation when attaching the new fan.
5.
Reconnect power to the fan.
6.
Adjust the thermostat to test the fan.
Traffic Cabinet Light Replacement
1.
Turn off the circuit breaker that powers the light.
2.
Remove the lamp cover and lamp.
3.
Insert a new lamp into the assembly and replace the cover.
4.
Restore power and test the light.
