Evaporative Check Valve: Testing and Inspection

CHECK VALVE INSPECTION
1. REMOVE CHECK VALVE
2. INSPECT CHECK VALVE
- Check that air flows from the yellow port to the white ports.
- Plug the white ports on one side, and check that air does not flow from the white port to the yellow port.
- If operation is not as specified, replace the check valve.
3. REINSTALL CHECK VALVE