BWT PERMAQ COMPACT 270 Series, Installation And Operating Manual

Page: 6 / 36

UK
6
) (
(%) cov
) ( 100
) (
h l pacity permeateca
ery re
h l pacity permeateca x
h l nt Outletamou


h l
x
nt Outletamou 465 310
40
310 100
  
6. ELECTRICAL
CONNECTIONS
Note! The electrical connections
must be made in compliance with
local regulations. The
electrical connection to the BWT
PERMAQ
®
Compact plant must be
as follows:
*Voltage:
230 Volt-50 Hz
*Fuse: 10 Amp
*Max. power consumption:
1.5 kW
Colour code of power cable:
Blue wire:
N
Brown wire: L
Yellow/green wire: PE
If for some reason you need to
change the factory-mounted pow-
er cable, please cf. Annex – 13.3
Wiring Diagrams.
All internal connections in the
plant like e.g. pump control and
level control are pre-assembled in
our factory. This means that only
the supplied power cable which is
connected to the control box (C-
Figure 3) must be connected to a
power plug or hard wired.
7. START-UP OF THE PLANT
Read section below carefully be-
fore starting up the plant.

Check prior to start-up that all
water and electrical connec-
tions are made as described in
previous sections and in com-
pliance with local regulations.

Open the raw-water supply.

Check that all water connec-
tions are tight.

Pull the permeate hose (A-
Figure 3) out of the reservoir
tank and lead it away from the
tank to a drain.

Open the outlet valve (B-
Figure 3) complete and close
the recirculation valve (D-
Figure 3).

Now switch on the 230 Volt
50 Hz power supply. Also
switch on the main switch lo-
cated on the control box (C-
Figure 3).

The plant is now operating.

Now the plant shall operate
and flush to outlet for 20-30
minutes before adjusting the
outlet valve once more.

When the flushing is finished,
adjust the outlet valve (B-
Figure 3) and recirculation
valve again.
REMEMBER! Under all given con-
ditions, the following must be
complied with:

Permeate amount: Max plant
capacity (l/h), 10-25 °C

Operating pressure: 13.5-
14.5 bar

Maximum pressure: 15 bar
Permeate amount and max. pres-
sure may never exceed above-
mentioned as it would cause
damage to the plant membrane.
7.1 Adjustment of outlet
amount
Important! Read the entire section
7.1 and 7.2 before adjustment is
commenced.
Outlet amount must be adjusted,
and the suitable outlet amount on
your plant depends on the raw-
water quality. A too high water
recovery will damage the plant
membranes. On condition that the
raw water complies with the
quality requirements, the plant
can operate with a recovery rate
of 40 %. With softened feed wa-
ter, you may obtain a recovery of
70-80 % dependent on the
amount of organic material in the
water.
Finally, the plant recovery affects
the conductivity of the permeate.
That means that if a retention
greater than 98 % is requested,
the plant recovery can be adjust-
ed at a lower level. Please note
that the plant retention rate of
98 % applies by 75 % recovery.
Contact BWT the supplier of your
plant to decide which outlet
amount is suitable for your water.
An easy way of checking the
outlet amount of the plant is:
Ex.: BWT PERMAQ
® Compact
273 with 40 % recovery:
When the requested amount of
outlet water has been obtained,
tighten the lock nuts on the outlet
valve (B-Figure 3) so that it is
locked. It is important to check the
outlet amount after the lock nuts
have been tightened to make sure
that the valve has not moved. Both
lock nuts must be tightened.
Important! The outlet valve must
be locked on the prescribed outlet
amounts. If the needle valve is
closed so that the outlet amount is
reduced, then the plant mem-
branes will become damaged.
7.2 Adjustment of recirculation
amount
Then the recirculation amount (D-
Figure 3) must be adjusted by
loosening lock nut on the recircu-
lation valve. Adjust the permeate
amount at maximum 110-400 l/h
for BWT PERMAQ
®
Compact
271-274 respectively, at a temp.
of 10-25 °C.
T
yp
e o
f
p
la
n
t
P
er
m
ea
te
C
a
p
a
ci
ty
(
l/
h
)
Outlet amount (l/h)
G
ro
un
d
w
a
ter
(40%
r
ec
o
v
e
ry
)
S
ur
fa
ce
w
a
ter
(50
%
r
ec
o
v
er
y)
S
o
ft
w
a
ter
(75
%
r
ec
o
v
er
y)
271 110 165 110 37
272 220 330 220 73
273 310 465 310 103
274 400 600 400 133