68 CLCH-SVX03C-EN
Wiring
To provide field-wiring to units with DDC controls:
• If VFD or starter is not factory-mounted, provide 120 Vac power to a transformer in the junction
box when a separate circuit is recommended (see Figure 64).
• Install outside-air sensor and space sensor, if ordered.
• For valve jack junction box mounting and wiring detail (see Figure 65).
Valve actuator wiring:
– Black connector is for 24 Vac power supply (black wire for GND and red wire for 24 Vac).
– White connector is for 0 to 10 Vac analog signal (brown wire for GND and white wire for 0
to 10 Vac signal).
Figure 65. Junction box mounting and wiring details
Figure 66. Typical quick connects with wiring identification
#10 self-drilling
screws (2)
2 x 4 junction box
Cover
Conduit
assembly
Valve
connection
End panel
Double-
wall panel
Bushing
(2 required
for units with
double-wall)
Airflow
Wire from
ribbon cable
Signal to slave
actuator
Power 24 Vac
Sig. 0-10 Vdc
Actuator
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