Espa TECNOPRES15 3M, Instruction Manual, Page: 3 / 20

I N S T R U C T I O N M A N U A L
Safety precautions
This symbol together with one of the following words
“Danger” or “Warning” indicates the risk level deriving from failure to
observe the prescribed safety precautions:
DANGER Warns that failure to observe the precautions
Risk of involves a risk of electric shock.
electric shock
DANGER Warns that failure to observe the precautions
involves a risk of damage to persons and/or
things.
WARNING Warns that failure to observe the precautions
involves the risk of damaging the pump
and/or the plant.
1. GENERAL CONSIDERATIONS
The purpose of the instructions we provide is to give information
about correct installation and optimum performance of the two pump
models.
The pump with built-in electronic pressure regulator (TECNOPRES)
is made up of a check valve, indicator LEDs and reset button.
Both have been developed to automate start-up and stoppage and to
prevent the pump running without water, and they require no air
recharge.
As long as the water consumption exceeds 1.4 l/minute (4.31 US
g.p.m.) the pump will keep running.
The start-up pressure (TECNOPRES) is equal to
PA (fig.1)
.
The pump will keep running as long as a tap is on.
When the taps are turned off, the pump stops.
CAUTION: Carefully following the installation and use instruc-
tions and the electrical connection diagrams ensures good
operation of the pump.
HAZARD: Failure to heed the instructions in this manual can
lead to overloads in the electronic circuit, underperformance of
the technical characteristics, reduced appliance life and conse-
quences of all kinds, in relation to which we decline all respon-
sibility.
2. INSTALLATION
2.1 - Transportable pump
The pump foot lends it good stability, so that as long as it rests
on
flat ground or a flat base is no need for additional securing.
Ensure
that the weight of the pipes does not rest on the pump.
If it wants to fix the pump it uses 2 screws of Ø8mm and make
good use of the holes that exist in the base.
2.2 - Suction pipe assembly
The suction pipe, if longer than 7 meters, must be of the same or
greater diameter than the pump inlet and installed in an upward
inclination to prevent trapped air pockets forming.
If the pump is required to perform a suction lift, to avoid unnecessary
losses of head on the discharge side, the pump should be installed
as close as possible to the water.
The end of the suction pipe must always remain at least 30 cm
below the water level.
2.3 - Discharge pipe assembly
It is recommended to use pipes with a diameter equal or greater
than the pump outlet. This will reduce loss of head caused by friction
in longer pipe runs.
Pipework must be supported and not rest on the pump.
If a foot valve has not been installed it is recommended to fit a check
valve to prevent accidental draining down of the system.
Inox
discharge connector.
An expansion vessel or a pressure gauge may be fitted on the 1 /
4
”G
thread of the discharge piping.
Take off the plug for the purpose.
2.4 - Electrical connection
CONNECTING THE PUMP TO THE MAINS
The electrical installation must be fitted with a multiple sepa-
ration system with contact opening of
* 3 mm. System pro-
tection should be based on a circuit-breaker switch (I
6 n
= 30 mA).
The electrical connection is made by connecting the pump’s
socket directly to a duly protected household mains socket, in
accordance with the regulations in force in each country.
2.5 - Pre-start checks
Ensure the voltage and frequency of the supply correspond to
the values indicated on the electrical data label.
Ensure that the pump shaft is rotating freely.
Fill the pump body with water through the self priming plug
opening. If a foot valve has been installed, also fill the suction
pipe.
Check all joints and connections for leaks.
THIS PUMP MUST NEVER BE DRY RUN.
3. START-UP
Starting up the pump with pressure regulator (Tecnopres)
Connect the electricity supply. The current indicator LED (LINE+RUN)
will light up.
The unit starts automatically. While the pump is running the operat-
ing light will remain lit up (RUN).
During this operation keep an outlet tap open in order to bleed any
air from the installation. Once the installation has been bled, close
the tap and the unit will then stop running in ~
–10 seconds. Only the
electrical current indicator LED (LINE) will remain lit.
If the pump is not well primed at start-up, or if there is no water to
supply to it, the pump will stop ten seconds later and the (FAULT)
indicator LED will light up.
To complete priming of the pump, press the (RESET) button.
If the motor does not work or does not extract water, try to trace the
fault from the list of the most common faults and the possible solu-
tions for them as set out in later pages.
4. MAINTENANCE
Under normal conditions these pumps require no special or
planned maintenance.
If the pump is not to be operated for a long period it is rec-
ommended to remove it from the installation, drain down and
store in a dry, well ventilated place.
ATTENTION: In the event of faults or damage occurring to the
pump, repairs should only be carried out by an authorised
service agent.
When the pump is eventually disposed of, please note that it
contains no toxic or polluting material. All main components
are material identified to allow selective disposal.
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