Evaporative Check Valve: Testing and Inspection

1. REMOVE CHECK VALVE.




2. INSPECT CHECK VALVE.
- Check that air flows from the yellow port to the black port.
- Check that air does not flow from the black port to the yellow 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.