Trane UniTrane FCD Installation Operation & Maintenance page 33

Speed selection
FCD units offer the possibility to
select any three from six speeds.
Refer to Figures 24-25 to select the
speeds to suit the airflow and static
pressure required. The speed can be
modified directly in the electric
control box.
Change the speeds according to the
color of the wires (see Figure 24).
UNT-SVX10G-E4
Installation
Figure 24 - Selecting speeds
FCD sizes 101-612:
A = Wire according to color codes. Wire speeds to Terminals 33-32-31.
Color coding for speeds:
Red = speed 1 (Minimum)
Orange = speed 2
Purple = speed 3
Grey = speed 4
Black = speed 5
Brown = speed 6
B = Isolate unused wires
C = Green/yellow wire
D = Blue wire
FCD size 721:
A = Wire according to color codes.
Red = speed 1 speed 2 (Minimum)
Orange = speed 3
Purple = speed 4
Grey = speed 5
Black = cable not available
Brown = speed 6
Each unit comes with a wiring diagram attached to the unit. Wiring diagram numbers :
Unit without control wiring (only terminal block implemented):
- FCD: wiring diagram 23097592 (2 pipes, 2 pipes + EH) or 23097593 (4 pipes)
- FED: wiring diagram 23099305 (2 pipes, 2 pipes + EH) or 23099306 (4 pipes)
Unit with big empty control box option (box with DIN rail and without terminal block):
- FCD: wiring diagram 23099288
- FED: wiring diagram 23099248
Warning: as big empty control box offer is a particular option proposed to enable
customer to mount his own digital direct control and protections, it is the
customer/installer's responsibility to make sure that control mounting and wiring is
achieved according to local safety regulations (protection selection,
earth connection, ...).
A
B
C D
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