PWM STAND ALONE (PWM410, PWM415, PWM420) For your information every PWM 410-415-420 is supplied as a standard with a pressure tranducer (included in the box). The pressure sensor is supplied with its own cable (4mt as standard supply), and the cable and connection on the board varies according to the type of sensor used. Unless otherwise specified, the sensor supplied as standard is ratiometric The pressure sensor must be inserted on the delivery manifold. There can be more than one pressure sensor, and in this case the pressure reading will be the average value of all those present. To use multiple pressure sensors, the connectors are simply inserted in the relative inputs and no parameter needs to be set. The number of pressure sensors installed can vary as required between one and the maximum number of inverters present. Such PWM requires as optional also the flow sensor which is sold separately (you can find it in our WACS C ATALOGUE). The flow sensor is strictly required in case of booster set assembling (more than 1 pump) while is optional, though recommended, in case of installation with 1 pump only. Correct flow sensor choice depends on pipe material (plastic or metallic) and relative pipe diameter. Furthermore in case of use of flow sensor is also required to select the corresponding clamp saddles (all such information and model are present in Wacs Catalogue).

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WaCS system srl Via Bonanno Pisano, 1 56031 Bientina (PISA) Italy tel. +39 0587 753800 fax. +39 0587 488815 e-mail: solange.frosini@wacs.it