Expansion Valve: Description and Operation

Thermostatic Expansion Valve:

The thermostatic expansion valve has the following characteristics:
- It is mounted on the A/C evaporator core inlet and outlet tubes.
- It is a block-type valve.
- It contains an internal sensing bulb to increase the effectiveness of temperature sensing.
- It is not serviceable. A new thermostatic expans!on valve must be installed as a unit.