Wilo Helix VE 22 Série Notice De Montage Et De Mise En Service page 45

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 - Block of DIP switches
2 ­ Pressure sensor
3 - Tank
4 – Insulation valve of the tank
6.2 Product characteristics
• Helix pumps are vertical multistage high-pressure
non-self-priming pumps for in-line connection.
• Helix 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 products
of the Helix 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 Helix 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 (Fig. 8).
7. Installation and electrical connection
All installation and electrical work may only
be carried out by qualified personnel and in
compliance with local codes and regulations!
WARNING! Risk of severe injury!
The applicable regulations for the prevention of
accidents must be complied with.
WARNING! Risk of electrical shock!
Danger from electric current must be eliminated.
7.1 Upon receipt of the product
Unpack the pump and recycle or dispose of the
packaging in an environmentally responsible
manner.
7.2 Installation
The pump must be installed in a dry, well­venti-
lated location free of frost.
CAUTION! Risk of damage to the pump!
The presence of foreign matter or impurities in
the pump housing may affect the functioning of
the product.
Installation and operating instructions – HELIX­VE 22­36­52
• It is recommended to perform any welding and
soldering work before installing the pump.
• Rinse the circuit completely before installing and
commissioning the pump.
- The pump must be installed in a place easy to
access for the purposes of inspection or replace-
ment.
- For heavy pumps, install a lifting hook
(Fig. 2, pos. 10) above the pump to facilitate
its disassembly.
WARNING!
Risk of accident due to hot
The pump must be installed in such a way that
no one can touch the hot surfaces of the product
when it is in operation.
- Install the pump in a dry and frost­free place on
a flat concrete block using appropriate screws.
If possible, use an insulating material under the
concrete block (cork or reinforced rubber) to
avoid any noise and vibration transmission into
the unit.
WARNING! Risk of tipping!
Ensure that the pump is correctly secured to the
ground.
- The pump must be installed in an easily accessi-
ble location to facilitate inspection and mainte-
nance work. The pump must always be installed
perfectly upright on a concrete baseplate.
CAUTION! Risk of foreign matter in the pump!
Ensure that all blanking plugs are removed from
the pump housing before installation.
NOTICE: All pumps are factory­tested for their
hydraulic properties and may therefore contain
a small amount of residual water. For hygiene
purposes, it is recommended to rinse the pump
before installing it in any potable water supply.
- For installation and connection dimensions see
section 5.2.
- Lift the pump only with appropriate lifting devic-
es 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 tipping due to the high
centre of gravity, especially for larger pumps. Take
special care over the safe fixation of the pump
when 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.
English
surfaces!
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