Part Number STH025 11/16 141
One Evaporator, Two TXV 48” Models
Tubing routing for one evaporator with two TXV’s is
different. The evaporator has two inlets and outlets. Fill
pattern varies depending on which circuit is affected,
Extremely Thin at the Evaporator Outlet will first be
visible 1/3 of the way down the evaporator. Only one side
of the evaporator may be affected depending on failure.
A TXV failure will usually show on only one side, while low
on refrigerant can affect one or both sides depending on
the amount of refrigerant loss and ambient temperature.
Extremely Thin at the Evaporator Inlet will show at
the bottom of the evaporator. Depending on the failure
either the entire bottom of the evaporator or one side of
the bottom of the evaporator may be affected.
Thin at Inlet
Thin at Outlet
ICE
ICE
ICE
Outlet
Inlet
Outlet
Inlet
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