Installation
STULZ UltraWater 3-stage reverse osmosis system SUW
© STULZ GmbH, Hamburg
- 22 -
Permeate =
pure water
(approx.0...3bar)
Feed=
supply
(1...5bar)
p
RO module
Non-return
valve
Drain valve
or ball valve
with aperture
Working
pressure
valve
Pump
Prefilter
p
Afterfilter
Pressure tank
(membrane expansion tank)
I-O
-P
lan
R
O
-E
X
C
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-D
TP
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ail:
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ua
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de
Intake pressure switch
Function: NO
Hysteresis:approx.0.5...1.0bar
Inlet
solenoid valve
Function: NC
Tank pressure switch
Function: NC
Hysteresis:approx.2.0-3.0bar
Tank
valve
Concentrate =
waste water
(0...0.5bar)
Note:
Connection of the pressure tank is absolutely essential for reliable operation of ultrasonic
humidifiers with the reverse osmosis system!
Install a pressure reducer upstream of the system, which restricts the
intake pressure to max. 4 bar.
Note:
Note:
During installation, the reverse osmosis system must be separated from the drinking wa
-
ter mains by a backflow preventer.
In sensitive areas where leaks must be avoided at all costs, we recommend the use of a
leakage warning system. This will cut off the water supply in the event of a leak.
7.2. Connection diagram
