Thermostatic Air Cleaner: Testing and Inspection

1. Remove thermostat from control box.
2. Place thermostat in a pan of cold water.
3. Raise water temperature to 20°C (68°F). Thermostat should remain open.
4. Raise water temperature to 34°C (93°F). Thermostat should close.
5. If thermostat does not operate properly, replace it.