b. Insulate the TXV bulb using the thermal
insulation provided to protect it from the effect
of the surrounding ambient temperature.
Cover the bulb completely to insulate it.
Figure 13: TXV bulb and equalizer line installation
9. When the refrigeration piping is installed, leak test
the system.
Figure 14: Correct bulb location for TXV
Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps 15
Johnson Controls Ducted Systems
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