Electrical Connection - Grundfos Selcoperm SES 125-2000 Instructions Manual

8.2.16 Additional external NaClO solution storage tank
installation
It is possible to install an additional NaClO solution storage tank
downstream the standard NaClO solution storage tank. However
this additional tank can never replace the standard NaClO solution
storage tank which is required to control the electrolysis process.
The additional external equipment (level sensors, transfer pump,
etc.) required for this setup must be controlled via a separate
control cabinet. It cannot be monitored or controlled via the
Selcoperm control cabinet.
5
1
4
Important installation notes and
Pos. Description
details
Chemically resistant against NaClO
solution with a concentration of 0.8
% and a max. liquid temperature of
Additional external
40 °C.
1 NaClO solution
storage tank
Install a vent pipe from the
additional tank to the outside of the
building.
NaClO solution
See section NaCIO solution storage
2 storage tank and
tank installation
collecting tray
Selcoperm
3
electrolyser
4 Transfer pump
The NaClO solution line must be
NaClO solution line
connected at the top of the
from storage tank to
5 additional tank. The line must not
additional external
reach into the tank to prevent the
tank
syphon effect.
NaClO solution line
See section NaCIO solution line
11a from electrolyser to
installation.
storage tank
Related information
8.2.15 NaClO solution storage tank installation
8.2.14 NaClO solution line installation
8.2.17 Special installation with hydrogen hose centering piece
inside the building
If it is not possible to pipe the hydrogen hose horizontally to the
outside of the building, install the hydrogen hose centering piece
horizontally inside the installation room.
3
11a
2
12a
12
11
11a
3
1 Hydrogen sensor
2 NaClO solution storage tank and collecting tray
3 Selcoperm electrolyser
7 Safe ventilation area
11 Hydrogen hose
11a NaClO solution line
11b Hydrogen hose centering piece
12 Ventilation line
12a Venturi tee
12b Tank degassing line
12c Air flow measuring piece
The safety concept requires a gas warning system for this kind of
installation.
• Install a hydrogen sensor close to the ceiling between the
hydrogen hose centering piece (11b) and the point where the
ventilation line leaves the building.
• Install a self-contained gas warning system. The gas warning
system must have a potential-free output contact, which is
directly connected to the customer's main control cabinet to shut
down the whole system in case of gas leakage. The contact
type of the output contact must be NC (normally closed) to
ensure the safety shutdown even in case of wire breakage.
• If the room has different ceiling heights, install another hydrogen
sensor at the highest point of the ceiling and make sure the gas
warning system monitors both sensors.

8.3 Electrical connection

DANGER
Electric shock
Death or serious personal injury
‐
Before making any electrical connections, switch off
the power supply and make sure that it cannot be
accidentally switched on.
‐
All electrical connections must be carried out by a
qualified electrician in accordance with local
regulations.
‐
All electrical connections must be carried out in
accordance with the separate wiring diagram delivered
with the system.
1 7
12c
12b
11b
2
29