Franklin Electric E-Tech GD Series, Инструкция по использованию и установке, Страница: 5 / 18

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Booster sets designed and built to ensure a constant pressure, specifically suitable for domestic applications and
small or medium systems for civil, agricultural or industrial uses. Booster sets strengths and benefit: constant
pressure, low noise operation, low running costs, low water consumption, protection against dry running. Is
recommended to use the sets with membrane pressure tanks.
Construction features
• Nr. 2 or 3 electric pumps (depending of the model of booster set)
• Base in painted sheet metal, bring control panel in painted sheet metal
• Intake manifold and discharge of galvanized steel, threaded
• Ball valves with pipe union inlet and outlet of each pump
• Check valve in to the delivery of each pump
• Nr. 2 female plus in cast iron, for manifolds closure
• Electronic pressure sensor for each pump installed
• Sets supplied with membrane pressure tank connections
Electrical section
• N.1 inverter (DRIVE-TECH) for each pump.
The INVERTER (DRIVE-TECH) module is a device installed on the pump, that includes a electronic pressure
transducer and an electronic inverter. Installed on the outlet discharger line of each electric pump, it controls
the pump’s speed rotation which is connected and maintain a fixed pressure at the setted flow rate variance.
Functioning
The lowering of pressure in the system caused by withdrawal of water, the pump is put in operation to meet the
water flow required.
Each inverter (DRIVE-TECH) also provides motor protection and monitoring, such as: protection against
overload and dry running, integrated soft-start and soft-stop functions, extending the life of the system and
reducing peak absorption, indication of input current and supply voltage, recording running hours and loggins
errors and alarms reported by the system, connect to other inverter (DRIVE-TECH) get combined operation.
The liquid cristal illuminated display ensures is easy to operate and a buzzer provides an immediate indication
of alarm.
Dry running signal via cosφ value
If pump runs dry, its cosφ value drops below a settable cosφ value, and the inverter (DRIVE-TECH) stops the
pump after 2 second. Inverter (DRIVE-TECH) will try to start the pump every 10, 20, 40, 80 and 160 minutes,
after which it will declare an alarm and stop the pump if the condition persists.
In case of use under inverter (DRIVE-TECH) and with membrane tanks, is necessary a total volume of the tank
(express in liters) not lower than the 10% of the maximum single pump flow rate.
A filter in suction is recommended.
3. DESCRIPTION