aqua HC797 Manuel page 14

2.0 TECHNICAL CHARACTERISTICS
2.1 General rules
Install the pump:
♦ On an horizontal reinforcement (ex: stoking tank) or on the pump shelf
(optional) so that the pump head stays always in vertical position +/-15° .
♦ Far from an hot source in dry places at maximum temperature of 45°C and
minimum 0° C.
♦ In a ventilated place and easily accessible by an operator for periodical
maintenance.
♦ At a suitable height above the chemical up to a maximum height of 1.5
meters. If for exigency of the plant it's necessary to install the pump under
the level of the chemical, you need to use an injection valve or an anti siphon
valve.
♦ Do not install the pump over the tank in presence of liquids that emanate
fumes unless it is hermetically closed.
2.2 Standard accessories supplied
1 Foot valve / Strainer.
♦
1 Injection fitting / pressure loading valve.
♦
2 meters opaque PE delivery tubing.
♦
2 meters PVC clear suction tubing.
♦
2 meters PVC clear priming tubing
♦
2.3 Electrical characteristics
Power supply: 230 VAC 50/60 HZ
2.4 Electric connection
CAUTION !!!!!
Verify that the earth system is perfectly functional and complies with the applicable
regulations. Make sure that the highly sensitive differential switch is present (0.03 A).
Verify that the rated values of the pump are compatible with those of the mains.
Never install the pump directly in parallel with inductive loads (e.g. motors/solenoid
valves) if necessary, use an isolating relay.
There are 2 protection devices inside the pump: a varistor and a fuse.
2.5 Hydraulic connection
After the exact installation of the pump (see generalities), proceed with the connection.
Suction: connect the suction tube (PVC soft cristal) to the foot filter that is supplied and put it in the
hose clamp, lock the tube closing the nut. If it utilises a level probe, this one has to be connected to
the filter through the support that is supplied. Put the foot filter into the liquid suction lift tank.
Connect the other extremity to the suction of the pump (lower part of the pump head), unscrew the
nut from the nipple, take off the rubber white disk situated on the tube connection. Let pass the tube
through the nut and the adaptor for the 4x6 tube with a simultaneous action of pressing and
rotating, put the tube on the nipple conical connection (hose clamp) till the end; lock up everything
by closing the nuts well. See fig. 7
28/05/13 Rev.2.6
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ENGLISH