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TXV–CLP-KIT (07/15)
Page 18
TXV Kit Installation – ETI Cased Coils
Cased Coils that are intended for
HEAT/COOL
applications,
are shipped with the matching TXV
Kit that must be field installed to enable operation of the system in the cool mode.
The following procedure is for the installation of the TXV Kit which must be done prior to making the
line set connections to the cased coil.
Figure 10 illustrates the TXV Kit as shipped with the external parts for field installation identified. In
Figure 10, the pressure equalizer tubing and suction line Tee are shown connected to the control
box for illustration purposes. These parts are shipped with the TXV control box and are field
assembled to the control box and to the suction line. The TXV (thermal expansion valve), CAV
(cooling assist valve) and interconnecting tubing are located inside the control box to ensure
performance.
Figure 10. TXV Control