KBY constant pressure control The KBY control module enables you to set and maintain a constant pressure in a low and medium pressure aerolic duct network (20 to 300 Pa). It is especially suitable for installations with variable air flow systems, such as zoning systems, installations with VAV systems and installations with ventilation flow rate modulation. The KBY control guarantees balance throughout the duct network and uniform operation of the grilles and diffusers of the installation. The KBY unit includes a pressure sensor, a selection switch and a rotary switch, which enable you to easily set the pressure to be maintained. The unit can act on a bypass damper (ZC/ZQ) by means of a 24 Vdc output or directly with a 0-10V output on an EC/DC fan, a frequency variator or a damper with a proportional motor. Green and healthy: air flow rate adjustment in accordance with the needs of the enclosure (by temperature or air quality).

KBY Pressure control module (range 20-300 Pa). Pressure taring with a rotary switch. Option of acting on a ZQ / ZC damper motor or directly with a 0-10V output on DC fans or frequency variators. ZQ Motorised air damper for assembly in a rectangular duct. It requires a KBY pressure sensor to act as a bypass. ZC M t i d air d Motorised i damper f assembly i a for bl in circular duct. It requires a KBY pressure sensor to act as a bypass. SPECIFICATION TEXT MADEL brand. Supply and mounting of KBY pressure control module (range 50-300 Pa) with pressure taring by means of rotary switch to act on Zoning...

PRESSURE CONTROL ON BYPASS DAMPER BYPASS DAMPER DAMPER SONDA P P SENSOR PRESSURE CONTROL ON EC/DC FAN EC/DC FAN WIRING DIAGRAM PRESSURE PROBE OPTIMAL POSITION 3De 230 VAC DAMPER / 0…10 V SWITCH Power supply Pressure Control PRESSURE SENSOR Technical specifications • Power supply 230 Vca ± 10%, 50/60 Hz. Consumption: 4 VA • 1 24 Vcc output, for ZQ / ZC damper control • 1 0-10 VDC output, for EC motor control or proportional damper motor. • Pressure sensor. • Nominal measurement range 20 to 300 Pa. • Average precision ±5% with respect to set-point. • RS-485 communications bus. • Protection rating:...