Catalogue

UV-PRC004-EN 43
Controls
The adapter allows direct customer interfacing through the use of terminal strips. Standard
interfacing includes:
• Fan Speeds (H, M, L) (for wall mounted fan speed switches)
• Variable speed (0–10V) inputs
The standard adapter board eliminates many separate
wiring harnesses in the panel and allows
simple, mistake-proofed single-plug interfacing of:
• The ECM engine controller
•Transformers
•Motors
• Valves
•Dampers
• Electric heat control
• Fan speed switches
• Main power (except electric heat)
The manual fan mode switch is available for unit ventilators that do not have Trane factory-
mo
unted control packages. This four-position switch (off, high, medium, low) allows manual fan
mode selection and is available unit or wall mounted. The unit-mounted option operates on line
voltage. The wall-mounted option is low-voltage and has three 24-volt relays using a factory-wired
transformer and relays to control the fan motor.
Unit-Mounted Speed Switch
UV-PRC004-EN.book Page 43 Monday, February 4, 2013 11:01 AM