Trane Symbio 700 Controller Application Manual page 24

Heat Cool Modes
Active. The supply fan operates at max speed on Constant Volume Units. Variable air volume discharge
air control units will operate the supply fan to the duct static pressure setpoint and report Heat Cool
Mode Status as Heat, if the installed heat type allows modulating air flow. Else if the heat type requires
full air flow, Maximum Heat is reported. (See Heat Types and Maximum Heat section for more
information).
When the space temperature is equal to or above the Daytime Warm-up Setpoint, daytime Warm-up
operation terminates and the Symbio™ 700 will transition back to Cool mode. See Maximum Heat for
details. If the requested operating mode is no longer Cool, Daytime Warm-up terminates.
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