Operation And Display - Theben FCA 2 Manual

Fan Coil Actuator FCA 2

1.1 Operation and display

FCA 2 is fitted with 9 LEDs and 2 push buttons.
• 3 red LEDs for displaying fan stage/fan speed (see figure 1)
• 1 red LED for heating mode
• 1 blue LED for cooling mode
• 1 red LED for the additional relay (C1)
• 2 red LEDs for inputs 1 and 2 (E1, E2)
• 1 red LED for test mode
• 1 push button for fan stages/fan speed
• 1 push button for heating/cooling mode
Figure 1: LEDs for displaying fan stages or fan speed
S1 S2
1-32 % 33-65 %
By using the manual button, the fan stages can be switched one after another.
• Standard fan control: Off  stage 1  stage 2  stage 3  Off  stage 1 etc.
• 0-10 V fan control: Off  33%  66%  100%  Off  33% etc.
Updated: Feb-16 (subject to changes)
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S3 Fan stages (standard fan, 1-3 stages)
66-100 % Fan speed (0-10 V control)
5 89
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