Aqua HC 100 Handbuch für Betrieb und Wartung - Seite 8
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On the front panel there is an ON / OFF switch (E) that allows you to activate and stop the pump.
There are also 2 LEDs, one GREEN (B) which signals the status of the pump on, the other
intermittent RED (A) which signals every single pulse. In the version with predisposition for level
alarm, under the LED (A) there is also an ORANGE LED which indicates that the product to be
dosed is finished.
The "HC 100" model dosing pumps also allow you to adjust the flow rate more finely between 0
and 20 imp / min by positioning the central selector (C) on 20% and using the trimmer (D). The
operator, taking advantage of the double adjustment, is able to choose a low number of injections
per minute more precisely.
Therefore, the programming of this model is limited to setting the number of pulses per minute that
the pump must perform.
3.0 MAINTENANCE
3.1 General maintenance comments
Regular maintenance is essential if the pump has to give good service over a long period.
The following advice should be strictly followed:
It is difficult to estimate the periods between maintenance operations, because of the pumps
operating conditions and the chemicals employed. It is therefore the basic responsibility of the
operator to check regularly the appearance and condition of the pump and to clean and service it
according to his findings
3.2 Periodic maintenance
Liquid's level in the tank should be monitored regularly and the tank refilled
a necessary to avoid the running dry of the pump. Wet parts of the pump,
foot valve, suction/delivery valves and the head and diaphragm should be
inspected and cleaned at least every 3 months. Where very aggressive
chemicals are being dosed, (Sodium Hypo chlorite is particularly difficult)
this period may need to be reduced and cleaning be carried out more
frequently. If pumps are not used for long periods, scale, sediment and
encrustation deposits can build up causing the pump to malfunction. We
highly recommend careful maintenance of the valves by running them
under clean water after long periods of non use. Alternatively, if the pump
has not been used for long periods, before re-setting up the operations, we
Cod. ADSP7000177C Rev.0.0 (12/2020)
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