Checkout
Before applying power, make sure installation and wiring connections are according to
job specifications. After necessary adjustments and electrical connections have been
made, put the system in operation and observe the control for at least three (3) complete
cycles before leaving the installation.
Troubleshooting
If the control system does not function properly, verify that the unit is wired, configured
and set properly. If the problem persists, use the following procedures to determine the
cause of the problem:
•
Check for proper supply voltage to the A419 control.
WARNING:
Risk of Electrical Shock.
High voltage may be present at electrical terminals and other
exposed internal metal surfaces. Avoid contact with all metal
surfaces on control when cover is removed.
o
Remove the cover by loosening the four captive cover screws;
o
Use a reliable AC voltmeter to check the voltage between COM and 120V
or 240V terminals on line voltage models and the two (2) 24V terminals
on low-voltage models;
o
The voltage must be between 20 and 30 VAC for 24 volt application, 102
and 132 VAC for 120 volt applications, 177 and 264 VAC for 208/240
volt applications.
If the voltage reading is not within the required range, check the power source and
input power wires for problems.