Using a coil equipped with an EEV: XAF
and XAH coils
XAF and XAH coils equipped with an EEV are available for
use with a fully modulating matched system. The EEV and
controls are factory installed. See Figure 18 You only have
to connect the communication (4-wire) cable included
to the communicating 4-pin connector on the furnace or
modular blower control board. See Figure 15 and Figure
16 for the connection diagrams, and see Figure 17 for the
wiring diagram.
Figure 15: Modulating EEV connection
Figure 16: Variable speed EEV connection
Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps16
Johnson Controls Ducted Systems
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