Description And Function; Installation And Electrical Connection - salmson FVO 206 Serie Instrucciones De Instalación Y Funcionamiento

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6. DESCRIPTION AND FUNCTION

6.1 Description of the pump (FIG. 1)
Pos. Description of the component
1 Electrical connection cable
2 Handle/holder
3 Cooling jacket
4 Return pipe
5 Rotary shaft seal or mechanical seal
6 Oil chamber
7 Lantern
8 Mechanical seal
9 Pump housing
10 Impeller
The submersible pumps in the FVO 206 series consist of:
•Pressure encapsulated, watertight single-phase or three-
phase motor in stainless steel (1.4404 / AISI 316L)
•Hydraulics in cast iron EN-GJL-250 (GG25)
The fluid penetrates from underneath through a central open-
ing and emerges from the pressure port (DN 65) at the side. The
sealing chamber between the seal on the fluid side and the
motor side is filled with white oil when delivered. The oil filling is
used for cooling, lubricating and protecting the two seals
against dry running. White oil is biologically degradable. The oil
volume depends on the type of motor, see 5.2. of the Techni-
cal Data.
The motors are equipped with thermal motor protection (ther-
mal winding contact) against overheating.
•Motor single-phase: One winding protection contact (WSK) on
the flex L. After excessive heating, the pump is switched off
and then switched on again automatically after it has cooled
down.
•Motor three-phase: Three winding protection contacts (WSK),
one contact in each winding head. The thermal winding con-
tact must be connected to the switchgear and evaluated
there. The pump is switched off after excessive heating. The
fault must be acknowledged via the switchgear.

7. INSTALLATION AND ELECTRICAL CONNECTION

DANGER! Risk of fatal injury!
Incorrect installation and improper electrical connec-
tions can result in a risk of fatal injury.
•The installation and electrical connections should only
be done by properly skilled staff and in compliance
with the applicable regulations!
•Follow all accident prevention regulations!
7.1 Installation
The pumps of the FVO 206 series are standard for stationary/
transportable wet sump installations. They are also suitable for
stationary dry sump installation, vertically or horizontally.
CAUTION! Danger of property damage!
Danger of damage due to incorrect handling. Using a
chain or rope, only suspend the pump by the handle or
holder, never by the electric or float switch cable or
pipe/hose connection.
General
•The installation site for the pump must be free of frost.
•The shaft must be cleared of coarse material such as rubble
before setting up and starting the pump.
•The pressure pipe must have the nominal diameter of the
pump (DN 65; it can be upgraded to DN 80).
•Install the pipes so that they are stress-free. Fix the pipes so that
the pump does not carry the weight of the pipes.
•To protect against any backflow from the public drainage sys-
tem, install the pressure pipe as a loop. It must be above the
established backflow level (usually street level).
•In the case of a stationary installation, install a non-return valve
and a stop valve with full passage cross-section in the pressure
pipe. In double pump systems, these fittings must be installed
over each pump.
NOTE: It is best to install the fittings outside in an addi-
tional sump (fittings sump). If this is not feasible, the fit-
tings should not be connected directly to the pressure
port or the pipe bend. A device to vent the pump must
be provided. Otherwise the air cushion cannot open
the non-return valve.
"Original-Salmson-accessories" are recommended to guaran-
tee perfect functioning of the pump.
7.1.1 Stationary wet sump installation (FIG. 2)
Pos. Description of the component
1 Foot elbow
2 Non-return valve
3 Gate valve
4 Bend
5 Installation accessories
6 Chain
•The fixed pipe connections on the pressure side must be pro-
vided on site.
•Mount the foot elbow with the floor fixing accessories on the
bottom of the sump and align it.
•Connect the pressure pipe with the necessary fittings (acces-
sories) on the foot elbow.
•Fix the pump bracket, profile joint on the pressure port of the
pump.
•Plug R1 ¼" guide pipe (to be provided on site) on to the foot
elbow.
•Suspend the pump in the guide tube and lower carefully on
the chain. The pump reaches the correct operating position
automatically and seals the pressure connection on the foot
elbow through its dead weight.
•Fix the chain on the guide tube bracket with shackle (provide
on site).
7.1.2 Transportable wet sump installation (FIG. 3)
Pos. Description of the component
4 Bend
6 Chain
9 Floor supporting foot
11 Counter-flange
12 Hose connection
13 Fixed coupling (instead of item 12)
14 Hose coupling (instead of item 12)
15 Pressure hose
In the case of a transportable wet sump installation, secure the
pump in the pit to prevent accidents and wandering (e.g.
secure the chain with slight pre-tension).
NOTE: When used in a sump without a firm base, the
pump must be put on a sufficiently large plate or hung
from a rope or a chain in a suitable position.
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