Description
This is a brand new OEM Lennox Armstrong Ducane upgraded TXV Expansion Valve. It replaces the part numbers listed below.
Function:
The thermostatic expansion valve controls one thing only: the rate of flow of liquid refrigerant into the evaporator. This is achieved by monitoring temperature and pressure in the refrigerant system.
Replaces Old Part #s:
13Y1901 13Y19 11X4901 11X49
Repair Difficulty Level:
Partial List of Units that Use This Item:
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