4
PROTHO Technical Manual
Bores Group S.r.l.
1 IMPORTANT DIRECTIONS AND
RECOMMENDATIONS
This instruction manual is an integral part of the
peristaltic metering pump (also more simply
defined in this instruction manual with the terms
pump or device) and must be kept for any future
consultation.
If the device is sold or transferred to another person,
this manual must be handed over to the new user so
that she/he will be informed about its functioning and
the relative directions.
Read the directions contained in this manual
carefully before installing and using the pump.
These directions have been drawn up for safety
during installation, use and maintenance.
Any directions or diagrams that refer to special
models will be supplied enclosed in this manual.
Always remove the plug from the power socket
before proceeding with any maintenance or
cleaning operation.
Any intervention or modification to the electrical
installation that might be necessary, must be carried
out exclusively by skilled and qualified personnel.
This pump is only for the dosage of additives
(detergent or rinse aid) in dishwashing machines.
Any use of the metering pump that is not the
dosage of additives in dishwashing machines is to
be considered improper.
It has been designed to be used by adults, therefore
stop children getting close to it with the intention of
playing.
As well as invalidating all forms of the warranty,
modifying or trying to modify this device is extremely
dangerous.
In order to guarantee the efficiency of the device
and for it to function correctly, you must follow
the Manufacturer’s instructions and have the
maintenance done by professionally qualified
personnel.
Never try to repair it by yourself because as well as
being dangerous, the intervention of people who are
not experts can cause or worsen the damage. If there
is a fault, contact the distributor who sold it to you or
the Manufacturer, who will recommend the nearest
Service Centre. We suggest you always ask for
original spare parts only.
When the pump has to be demolished, we remind you
to make it inoperative removing the power cord (after
having disconnected it from the mains supply, of
course).
We also remind you to:
∗
Avoid throwing the components of the metering
pump away into the environment.
∗
Arrange for the disposal and the recovery of the
materials in accordance with the relevant national
laws in force.
For this reason we urge you to give maintenance
work and recovery of any replaced components
exclusively to authorised service engineers.
2 GENERAL CHARACTERISTICS
2.1 FIELD OF USE
The peristaltic pumps in the “PROTHO” series are
available in two versions:
-
without the container, for use inside dishwashers.
-
With the container, for external use.
The functional characteristics of the metering pumps
with the container is, if necessary, completed with
different technical solutions that allow a practical and
effective regulation of the capacity.
2.2 FUNCTIONING PRINCIPLE
Peristaltic pumps are the best that exist in the
metering pumps sector as they do not have valves,
which cause considerable problems.
The functioning principle is based on the elasticity of
the membrane pipe for pumping and on the
alternating sliding compression of the rollers
supported by the central rotor of the device. This
support, driven by a motor reducer, whilst turning,
puts the suction and injection functions into operation
simultaneously.
Suction occurs because of depression, after the
passage of the rollers, thanks to the elasticity of the
pipe, while injection occurs following the sliding
compression of the rollers on the pipe which push the
product towards the outlet.
2.3 RATING
The voltage, frequency and capacity values are
shown on the data plate. Refer to this for all checks
and verifications.
3 INSTALLATION
When delivered the metering pump is protected by a
cardboard packaging (fig. 1).
Open the cardboard packaging, avoiding the use
of unsuitable tools such as knives, penknives,
screwdrivers, etc. and make sure the device is
intact. If you have any doubts about this, DO NOT
USE IT and contact the Distributor or the
Manufacturer who sold it to you.
None of the packaging (bags, cardboard, polystyrene
foam, staples, straps, etc.) must be left in the reach of
children as they are potential sources of danger.
Skilled and qualified personnel must carry out the
installation observing the national laws in force
and following the Manufacturer’s instructions.
Incorrect installation can cause damage to the
environment, animals, people and objects, for which
the Manufacturer cannot be considered responsible.
3.1 POSITIONING
The device has been designed and manufactured to
be installed internally or externally (models with
