Function Of The Product; Installation And Electrical Connection - salmson Nexis-VE 22 Instalación Y Instrucciones De Puesta En Marcha

FIG. 2, 3
1 – Strainer
2 – Pump suction valve
3 – Pump discharge valve
4 – Check valve
5 – Drain + priming plug
6 – Venting plug and filling plug
7 – Tank
8 – Foundation block
9 – Option: pressure plugs (a – suction,
b – discharge)
10 – Lifting hook
FIG. A1, A2, A3, A4
1 – Switch block
2 – Pressure sensor
3 – Tank
4 – Insulation valve of the tank

6.2 Function of the product

• Nexis pumps are vertical multistage high-pressure
non-self-priming pumps for in-line connection.
• Nexis pumps combine highly efficient hydraulic
systems and motors (if present).
• All metal components in contact with the fluid
are made of stainless steel or grey cast iron.
• Special versions for aggressive liquids exist with
all components in contact with the liquid being
made of stainless steel.
• A cartridge seal is used as standard for all prod-
ucts of the Nexis range to facilitate maintenance.
• For models equipped with the heaviest motor
(> 40 kg), a specific coupling allows the seal to
be replaced without removing the motor.
• The Nexis lantern design includes an additional
ball bearing that takes up hydraulic axial forces:
this allows the pump to be fitted with an entirely
standard motor.
• Special handling devices are integrated to facili-
tate pump installation.

7. Installation and electrical connection

All installation and electrical work may only be
carried out by qualified personnel and in compli-
ance with local codes and regulations!
WARNING! Risk of severe injury!
Ensure that all existing regulations concerning the
prevention of accidents are observed.
WARNING! Risk of electrical shock!
Ensure that any electrical hazard is avoided.
7.1 Installation
Unpack the pump and dispose of the packaging in
accordance with all regulations concerning the
protection of the environment.
7.2 Installation
The pump must only be installed in a dry, well-
ventilated and frost-free location.
CAUTION! Risk of damage to the pump!
Contamination and solder residue in to the pump
body may affect pump operation.
SALMSON 12/2013
• It is recommended to perform any welding and
soldering work before installing the pump.
• Flush the system thoroughly before
installing the pump.
- Install the pump in an easily accessible position to
facilitate inspection or replacement.
- For heavy pumps, install a lifting hook (Fig. 2,
Pos. 12) above the pump to facilitate its disas-
sembly.
WARNING! Hot surface! Risk of burns!
Position the pump in such a way that any contact
with hot pump surfaces is prevented during oper-
ation.
- Install the pump in a dry and frost-free place on
a flat concrete block using appropriate acces-
sories. If possible, use an insulating material
under the concrete block (cork or reinforced rub-
ber) to avoid any noise and vibration transmis-
sion into the installation.
WARNING! Risk of tipping!
Ensure that the pump is correctly secured to the
ground.
- The pump must be installed in an easily accessible
location to facilitate inspection and removal work.
The pump must always be installed perfectly
upright on a sufficiently heavy concrete base.
CAUTION! Hazard caused by foreign parts
inside the pump!
Ensure that all blanking plugs are removed from
the pump housing before installation.
NOTE: All pumps are factory-tested for their
hydraulic properties and may therefore contain
small amount of residual water. For hygienic pur-
poses, it is recommended to rinse the pump before
any installing it in any potable water supply.
- For installation and connection dimensions see
section 5.2.
- Lift the pump only with appropriate lifting
devices and suitable slings in compliance with
lifting regulations. The integrated lifting hooks
must be used for lifting and the fixation of the
pump.
WARNING! Risk of tipping!
There is a high risk of falling due to the high posi-
tion of the centre of gravity especially for larger
pumps. Take special care to the safe fixation of the
pump during handling.
WARNING! Risk of tipping!
Use integrated lifting hooks only if they are not
damaged (e.g. by corrosion). Replace them, if
required.
WARNING! Risk of tipping!
Never lift the complete pump using the motor
hooks as these are designed to lift the motor only.
- Motors are equipped with drain holes for con-
densed water that are sealed at the factory by
plastic plugs to ensure IP55 protection. If used in
air-conditioning or cooling systems, remove these
plugs to allow draining.
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