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Description
Rev 2 – May 06 OMM223000015
2.2 Description of Operation
Refer to Fig 2.
Under normal conditions, the inlet pressure is prevented from reaching the
vent port by the valve seat assembly which is held closed by the spring.
If the temperature increases, the wax temperature element expands and
moves the pushrod against the spring pressure.
When the temperature rises above the setpoint, the valve seat is lifted by the
pushrod and the inlet pressure is connected to the vent port.
When the temperature falls, the valve seat assembly is closed again by spring
pressure.
The screw is used to adjust the setpoint (preset by AMOT).
Fig 2 AMOT 2230/4430 Temp Sensing Valve
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