Description And Function; Product Description; Installation And Electrical Connection; Pipe Connection - Wilo Helix-V 2 Notice De Montage Et De Mise En Service

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6. Description and function

6.1 Product description

FIG. 1
1 - Motor connection bolt
2 - Coupling guard
3 - Mechanical seal
4- Hydraulic stage casing
5 - Impeller
6 - Pump shaft
7 - Motor
8 - Coupling
9 - Lantern
10 - Tube liner
11 - Flange
12 - Pump housing
13 - Base plate
FIG. 2, 3
1 - Strainer
2 - Pump suction valve
3 - Pump discharge valve
4 - Check valve
5 - Drain + priming plug
6 - Air bleed screw + Filling plug
7 - Tank
8 - Foundation block
10 - Lifting hook
6.2 Design of product
• HELIX pumps are vertical high pressure non-self
priming pumps with inline connection based on
multistage design.
• HELIX pumps combine use of both high efficien-
cy hydraulics and motors.
• All metallic parts in contact with water are made
of stainless steel.
• For models equipped with heaviest motor (>40
kgs), a specific coupling allows to change the
seal without removing the motor. A cartridge
seal is then used in order to ease maintenance.
• Special handling devices are integrated in order
to facilitate pump installation.

7. Installation and electrical connection

Installation and electrical work in compliance
with any local codes and by qualified personnel
only.
WARNING! Bodily injury!
Existing regulations for the prevention of acci-
dents must be observed.
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be
excluded.
7.1 Commissioning
Unpack the pump and dispose of the packaging
in an environmentally-responsible manner.
7.2 Installation
The pump must be installed in a dry, well-venti-
lated and frost-free place.
14
CAUTION! Possible damage of the pump!
Dirt and solder drops in to the pump body can
effect the pump operation.
• It is recommended that any welding and sol-
dering work be done before installing the pump.
• Thoroughly flush the system out before
installing the pump.
- The pump must be installed in an easily accessi-
ble position to facilitate inspection or replace-
ment.
- For heavy pumps, install a lifting hook (Fig.2,
item 10) above the pump in order to ease its dis-
assembly.
WARNING! Risk of accident by hot surfaces!
The pump must be positioned so that someone
cannot come into contact with the hot pump sur-
faces while operation.
- Install the pump in a dry place protected from
frost, on a flat concrete block using appropriate
accessoiries. If possible, use an insulating mate-
rial under the concrete block (cork or reinforced
rubber) to avoid any noise and vibration trans-
mission into the installation.
WARNING! Risk of fall!
The pump must be correctly screwed to the
ground.
- Place the pump where it will be easy to reach, to
facilitate inspection and removal work. The pump
must always be installed perfectly upright on a
sufficiently heavy concrete base.
CAUTION! Risk of parts inside the pump!
Take care to remove closure members of the
pump housing before installation.
NOTE: Each pumps could be tested regarding
hydraulic features in factory, some water may
remain in them. It is recommended for hygienic
purposes, to carry out a rinsing of the pump
before any using with potable water supply.
- The installation and connection dimensions are
given § 5.2.
- Lift the pump carefully by using the integrated
hooks rings, if necessary with a hoist and suit-
able slings according to the current hoist guide-
lines.
WARNING! Risk of fall!
Take care to pump fixations especially for the
highest pumps whose centre of gravity may lead
to risk during pump handling.
WARNING! Risk of fall!
Use integrated rings only if they are not damaged
(no corrosion ...). Replace them if needed.
WARNING! Risk of fall!
The pump must be never carried by using motor
hooks: these are only designed to lift the motor
alone.

7.3 Pipe connection

- Connect the pump to the pipes by using only
WILO SE 09/2011