BWS1500 System Installation, Operation & Maintenance
13
1
Feed
To User
Equipment
2
5
6
7
9
8
11
12
13
10
Processor
To Drain
17
16
15
18
21
20
stream exiting the Membrane (8). The Water Quality
Monitor is battery powered with two AA batteries. It will
automatically shut-off after 30 seconds.
•
As long as the Low Level Float Switch (24)
detects a minimum level of water in the Tank, the
Repressurization (“RP”) Pump (17) is enabled to draw
from the Atmospheric Storage Tank (3) and dispense
Optimized water by way of the Buffer Tank (19 - on a
50 Gallon Tank only) through the Processor and the
Pressurized Water Check Valve (18). (Note that, due
to the design of the RP Pump used with the 175 Gallon
Tank, no Buffer Tank and no Low Level Float Switch are
needed.) When the pressure drops in the Buffer Tank
(with 50 G Tank) or downstream (with 175 G Tank), the
RP Pump runs until pressure is restored, then shuts off.
•
The Optional Post-Treatment Filter (20) is designed
to provide additional treatment based upon specific
application requirements. For beverage applications an
activated carbon filter is recommended.
•
As Optimized Water is dispensed from the storage tank
by the Repressurization Pump (17), air is replaced
in the tank through the Sub-Micron (0.2 micron) Air
Breather (15).
•
If the RP Pump (17) fails, water flow can be restored to
the equipment by turning the Emergency Bypass Valve
(2) to the “SYSTEM BYPASS” position. (The Bypass
Switch on the Controller must also be placed in the
“System Disable” position.) This allows tap water to
bypass the processor and RP assembly.
•
A Sample Port (21) allows sampling and draining of
Optimized Water from the Tank (drain by closing the
Feed Water Valve or unplugging the Processor to stop
filling of the Tank, and opening Sample Port) .
•
The Tank Inlet Divert Valve (14) and/or Sample Port (21)
additionally provide(s) the ability to measure membrane
production. With a 175 Gallon Tank/RP Pump, this is
done by turning the Tank Inlet Divert Valve (14) to the
bypass or UP position and sampling at the Tank Inlet
Divert Valve. With a 50 Gallon Tank/Repressurization
Assy, this is done by closing the Buffer Tank Valve (22),
turning the Tank Inlet Divert Valve (14) to the bypass
or UP position and opening the Sample Port (21). This
diverts the permeate through the Bypass Check Valve
(23) and back to the Sample Port (21) at the Processor
where permeate can be sampled. Note that on a 175
Gallon Tank/RP Pump, there is neither a Buffer Tank
Valve (22) nor Bypass Check Valve (23). Instead, there
is a Tank Outlet Valve at the bottom of the Tank.
Repressurization Pump Details
50 Gallon Tank
The Repressurization Assembly with a 50 Gallon Storage
Tank includes a diaphragm pump controlled by an internal
Pressure Switch, and a Buffer Tank between the Pump and
the downstream equipment maintains downstream pres-
sure. Water demand for downstream equipment is directly
supplied from the Buffer Tank, and deman can go on and
19
14
3
4
23
24
22
