S&P UTBS PRO-REG Series, Manual

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Factory setting data according to sizes
Model Proportionnal
band
Integral
band
UTBS-2 5000 Pa 25s
UTBS-3 5000 Pa 25s
UTBS-5 5000 Pa 25s
UTBS-8 5000 Pa 25s
11.3.4. Control slave of an external fan (For all working modes)
The PRO-REG controller allows the control of an external fan as slave of the UTBS
fan. These functionality is available for all the working modes (VAV, CAV o COP).
The control can be done though an specifi c output 0-10V, terminals EAF / 0-10V in
the electrical board (see electrical diagrams).
Slave fan adjustment is done from the Settings screen:
The setting corresponds to a percentage of the UTBS-PRO-REG fan current speed.
Example:
UTBS PRO-REG Fan speed Slave Factor (Settings) Terminal Output EAF
100% Vmax 100% 10V
70% 100% 7V
50% 100% 5V
100% Vmax 80% 8V
70% 80% 4.8V
50% 80% 4V