Idiomas disponibles
Idiomas disponibles
OPERATING AND MAINTENANCE MANUAL
SPEEDBOX SERIES ELECTRONIC VARIATOR
READ THE FOLLOWING INSTRUCTIONS CAREFULLY BEFORE INSTALLING AND USING
THIS DEVICE. THE MANUFACTURER DECLINES ALL RESPONSIBILITY IN THE EVENT OF
INCIDENTS OR DAMAGE DUE TO NEGLIGENCE OR NON-COMPLIANCE WITH THE INS-
TRUCTIONS DESCRIBED IN THIS MANUAL OR USE IN CONDITIONS OTHER THAN THOSE
INDICATED ON THE APPLIANCE.
1. OPERATION
The SPEEDBOX is a wall-mounted device for controlling a pump - single-phase or three-
phase - by means of an electronic system managed by software that meets the stringent
efficiency and safety requirements of the most important pump manufacturers. It includes
an INVERTER (frequency inverter) that regulates the pump speed to maintain a constant
and fixed optimum pressure in the installation, regardless of the flow rate being supplied.
The system incorporates an LCD screen, which makes parameter configuration very simple
and intuitive. Once the configuration parameters have been entered, the system manages
the start-up of the pump and the frequency inverter. At the same time, it ensures a constant
pressure and a considerable reduction in energy costs because the pump uses a power
proportional to the demand requested by the network at all times, thus obtaining maximum
energy efficiency. To establish the optimum pressure in the installation, it is convenient to
consider the following concepts:
Hm: Max. height of water column in m. It depends on the number of floors of the building
and corresponds to the height from the pump to the top floor. Every 10 m of height is
equivalent to approximately 1 bar (0.98 bar).
Pw: Minimum pressure available at the top floor (normally 1.5 bar).
Pc: Pressure drop with a general and indicative criterion can be considered as 0.033 bar/m.
Prmin: Minimum resultant pressure. Sum of the previous pressures, it corresponds to the
intervention pressure of the pumps.
Indicative example for a 5-storey building equivalent to 15 m with pump located at level 0:
Hm =15 m = 1.5 bar Pw = 1,5 bar Pc=15 x 0,033 bar @ 0,5 bar
=3,5 bar
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Prmin = 1,5 + 1,5 + 0,5
