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UNT-IOM-6 39
Fan Mode Switch
Manual Fan Mode Switch
The manual fan mode switch is available for fan-coil units that do not
have Trane factory-mounted control packages. This four-position
switch (off-hi-med-lo) allows manual fan mode selection and is
available unit or wall mounted.
The unit-mounted option (Digit 31 = D) operates on line voltage. The
wall-mounted option (Digit 31 = K) is low-voltage and has three 24 volt
relays using a factory-wired transformer and relays to control the fan
motor.
Sequence of Operations
Off: Fan is turned off, two-position damper option spring-returns
closed.
Hi, Med, Lo: Fan runs continuously at the selected speed. The two-
position damper option opens to an adjustable mechanical stop-
position.