Thermostat: Testing and Inspection

INSPECTION

THERMOSTAT

1. Immerse the thermostat in water and gradually heat the water.





2. Check the valve opening temperature.
Valve opening temperature : 82°C (177°F)
Full opening temperature : 95°C (205°F)
If the valve opening temperature is not as specified, replace the thermostat.
3. Check the valve lift.
Valve lift: Min. 10 mm (0.4 in.) at 95°C (205°F)
If the valve lift is not as specified, replace the thermostat.