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±1.5°C (179.6±2.7°F)
Full opening temperature : 95°C (203°F)


If the valve opening temperature is not as specified, replace the thermostat.
3. Check the valve lift.

Valve lift : 8mm (0.3in) or more at 95°C (203°F)


If the valve lift is not as specified, replace the thermostat.