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 TM 55-1925-273-10-1
0080 00
6.
Allow the system to operate in this configuration for approximately two minutes. Ensure that all gauges stabilize, and
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 12).
! CAUTION
Increase system pressure slowly. Failure to comply with this caution will cause damage to the
reverse osmosis membranes.
7.
At ROWPU 1 flow control panel (figure 21, item 9), slowly increase system pressure by rotating the SYSTEM HIGH
PRESSURE REGULATOR valve, RO-V-1-3 (figure 21, item 11) in the INCREASE direction until the SYSTEM
OPERATION PRESSURE gauge (figure 21, item 13) 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 12) and the PRODUCT WATER flow meter (figure 21, item 17).
! CAUTION
Increase system pressure slowly. Failure to comply with this caution will cause damage to the
reverse osmosis membranes.
9.
At ROWPU 1 flow control panel (figure 21, item 9), slowly increase system pressure by rotating the SYSTEM HIGH
PRESSURE REGULATOR valve, RO-V-1-3 (figure 21, item 11) in the INCREASE direction until the SYSTEM
OPERATION PRESSURE gauge (figure 21, item 13) 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 12) and the PRODUCT WATER flow meter (figure 21, item 17).
! 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 1 flow control panel (figure 21, item 9), slowly adjust system pressure by rotating the SYSTEM HIGH
PRESSURE REGULATOR valve, RO-V-1-3 (figure 21, item 11) as necessary until the PRODUCT WATER flow meter
(figure 21, item 17) indicates 66 gallons (249.8 liters) per hour, to a maximum 900 PSI (62.1 bar) as indicated by the
SYSTEM OPERATION PRESSURE gauge (figure 21, item 13).
12. Verify that the ROWPU 1 gauges and indicators stabilize as follows:
a.
At ROWPU 1 flow control panel (figure 21, item 9), verify the following:
! CAUTION
If bypassing the media filter, RO-PG-1-1, 20-micron filter outlet/5-micron filter inlet pressure
gauge, should not exceed 45 PSI (3.1 bar), or damage could occur.
(1)
HIGH PRESSURE PUMP INLET pressure gauge (figure 21, item 10) indicates a minimum of 10 PSI
(0.7 bar) and a maximum of 45 PSI (3.1 bar).
0080 00-23
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