6
5.1 Modules connected in series and in
parallel
1. For modules connected in series, mounted above
each other, it is recommended to connect the
pipes as shown in fig. 3.
2. For modules connected in parallel, mounted
above each other, it is recommended to connect
the pipes as shown in fig. 4. This layout ensures
that the modules are filled with water before start-
ing.
3. When modules are connected in series and par-
allel, mounted above each other, it is recom-
mended to connect the pipes as shown in fig. 5.
4. For modules connected in series and fitted with a
bypass, mounted above each other, it is recom-
mended to connect the pipes as shown in fig. 6.
Fig. 3 Booster unit with four modules connected in
series, mounted above each other.
Note: In the case of constant-pressure control of
BMQE-NE modules connected in series, it is recom-
mended to control the last controllable module in the
booster unit.
Fig. 4 Booster unit with four modules connected in
parallel, mounted above each other.
Fig. 5 Booster unit with two modules connected in
series and in parallel, mounted above each
other.
Note: In the case of constant-pressure control of
BMQE-NE modules connected in series, it is recom-
mended to control the last controllable module in the
booster unit.
Fig. 6 Booster unit with four modules connected in
series with bypass, mounted above each
other.
Note: In the case of constant-pressure control of
BMQE-NE modules connected in series, it is recom-
mended to control the last controllable module in the
booster unit.
All modules are supplied without non-return valve.
Booster modules connected in parallel may also be
installed vertically.
Note: As venting problems may arise in such instal-
lations, it is advisable to install suitable air vent
devices.
6. Electrical connection
The electrical connection should be carried out by an
authorized electrician in accordance with local regu-
lations.
The supply voltage, rated maximum current and
power factor (PF) appear from the booster module
nameplate.
TM
00 40
40 41
97
T
M
00
3761
4197
TM0
0
376
2 419
7
Bypass
1
2
3
4
3"
3"
4"
4"
Bypass
Bypass
Bypass
Bypass
1
2
3
4
3"
3"
3"
3"
Bypass
Bypass
1
2
3
4
3"
3"
3"
3"
TM
00 37
63 419
7
Before starting work on the booster mod-
ule, make sure that the electricity supply
has been switched off and that it cannot be
accidentally switched on.
The booster module must be earthed.
The booster module must be connected to
an external mains switch.
Bypass
1
2
3
4
3"
3"
4"
4"
Air escape va
Closing valve
Non return valv
Pressure switc
Flow switch
Motor operated
Diaphragm tan
Pressure gaug
= Air escape valve
= Isolating valve
= Non-return valve
= Pressure switch
= Flow switch
= Pressure gauge
= Motor-operated valve
= Diaphragm tank