Trane BAYECON355 Series, Installation Manual

Page: 7 / 24

RT-SVN044A-EN 7
Figure 6. Filter access panel installation
Reinstall Filter
Access Panel
Reinstall Horizontal
Return Panel
7. Remove the mixed air sensor and 2-wire purple and
green wire harness from the parts bag. Remove the
RTU control box panel and supply air blower panel.
Connect the 2-wire harness to the purple and green
wires located in the low voltage control box. The
white wire should be terminated to W1 on the unit
control board, this can be done by cutting and
stripping the end of the wire. The orange wire is
provided for a fault alarm relay or light. When the
controller’s AUX1-OUT is set to “SYS,” this wire
will provide 24V when a fault is detected. See
Figure 7, p. 7 .
Figure 7. Low voltage control box
8. Route the 2-wire purple and green wire harness into
the supply air blower section, attach the mixed air
sensor to the supply blower (ensure the screw
doesn’t interfere with the blower operation), then
connect the wires to the mixed air sensor. See
Figure 8, p. 7 .
Figure 8. Supply fan blower section
9. Reinstall the supply air blower panel and the
control box cover panel.
10. Read the economizer controller section to
determine the setup for your application.
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