14
14-33
Inspection procedure
Inspection: Thermostat
• Stir the water using a stirring rod to maintain an even water tem-
perature in the container, then conduct the tests indicated below.
• If the measured values deviate from the standard value ranges,
replace the thermostat.
(1) Valve opening temperature
• Hold the thermostat with wire to keep it away from the heat
source.
• Heat the water gradually to the valve opening temperature.
• Maintain this temperature for five minutes and make sure that
the valve is completely open.
• Make sure that the valve closes completely when the water tem-
perature drops below 65°C.
(2) Valve lift
• Heat the water to a temperature slightly higher than the valve
opening temperature. Maintain this temperature for five minutes
and measure the valve lift.
Installation procedure
Installation: Gasket
• Fit the gasket onto the thermostat case in the illustrated direc-
tion.
To Next Page
Loading...
