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 TM 55-1925-273-10-1
0080 00
b.
Press the START pushbutton (figure 25, item 3) and verify the following:
(1)
BOOSTER PUMP indicator (figure 25, item 4) illuminates.
(2)
SYSTEM ON indicator (figure 25, item 5) is illuminated.
5.
At the ROWPU 2 flow control panel (figure 21, item 18), verify the following:
a.
The BRINE flow meter (figure 21, item 21) displays a flow reading of 4 gallons (15.1 liters) per minute with no
bubbles present.
b.
The BRINE DISCHARGE PRESSURE gauge (figure 21, item 24) indicates less than 15 PSI (1 bar).
c.
The PRODUCT WATER OUTPUT PRESSURE gauge (figure 21, item 25) indicates approximately 0 PSI (0.0 bar).
d.
The SYSTEM OPERATION PRESSURE gauge (figure 21, item 22) indicates less than 50 PSI (3.4 bar).
e.
The PRODUCT WATER flow meter (figure 21, item 26), indicates less than 1 gallon (3.8 liters) per hour.
6.
Allow the system to operate in this configuration for approximately two minutes. Ensure that all gauges stabilize, and
that most of the air is purged from the system as indicated by a fluid stream with few or no bubbles flowing through the
BRINE flow meter (figure 21, item 21).
! CAUTION
Increase system pressure slowly. Failure to comply with this caution will cause damage to the
reverse osmosis membranes.
7.
At ROWPU 2 flow control panel (figure 21, item 18), slowly increase system pressure by rotating the SYSTEM HIGH
PRESSURE REGULATOR valve, RO-V-2-3 (figure 21, item 20) in the INCREASE direction until the SYSTEM
OPERATION PRESSURE gauge (figure 21, item 22) indicates 400 PSI (27.6 bar).
8.
Allow the system to operate in this configuration for approximately two minutes. Ensure that all gauges stabilize, and
that most of the air is purged from the system as indicated by fluid streams with few or no bubbles flowing through the
BRINE flow meter (figure 21, item 21) and the PRODUCT WATER flow meter (figure 21, item 26).
9.
At ROWPU 2 flow control panel (figure 21, item 18), slowly increase system pressure by rotating the SYSTEM HIGH
PRESSURE REGULATOR valve, RO-V-2-3 (figure 21, item 20) in the INCREASE direction until the SYSTEM
OPERATION PRESSURE gauge (figure 21, item 22) indicates 650 PSI (44.8 bar).
10. Allow the system to operate in this configuration for approximately two minutes. Ensure that all gauges stabilize, and
that all air bubbles are purged from the system as indicated by solid fluid streams flowing through the BRINE flow
meter (figure 21, item 21) and the PRODUCT WATER flow meter (figure 21, item 26).
! CAUTION
ROWPU maximum safe operating pressure is 950 PSI (65.5 bar). The system high pressure
cutout is set at 950 PSI (65.5 bar) 25 PSI (1.7 bar). Do not exceed 900 PSI (62.1 bar) as
indicated by the SYSTEM OPERATION PRESSURE gauge, or damage to the ROWPU system
could occur.
11. At ROWPU 2 flow control panel (figure 21, item 18), slowly adjust system pressure by rotating the SYSTEM HIGH
PRESSURE REGULATOR valve, RO-V-2-3 (figure 21, item 20) as necessary until the PRODUCT WATER flow meter
(figure 21, item 26), indicates 33 gallons (125 liters) per hour, to a maximum 900 PSI (62.1 bar) as indicated by the
SYSTEM OPERATION PRESSURE gauge (figure 21, item 22).
0080 00-25
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