Evaporative Check Valve: Testing and Inspection

CHECK VALVE INSPECTION
1. Remove check valve.




2. Inspect check valve.
- Check that air flows from the blue port to the black port.
- Check that air does not flow from the black port to the blue port.
- If operation is not as specified, replace check valve.




3. Reinstall check valve.

HINT: Reinstall the check valve with the black port facing the purge port side.