TM 55-1925-282-14&P
0005 00
3. CLOSE RO-V-2-1 (figure 9, item 4), ROWPU 2 inlet sea water supply.
4. At 440V power panel No. 5, set the REVERSE OSMOSIS WATER MAKER NO. 2 circuit breaker (figure 6,
item 2) to the OFF position.
ROWPU SYSTEM SHUTDOWN
! CAUTION
Perform ROWPU system shutdown only when both ROWPU 1 and ROWPU 2 are
secured, and both high pressure pumps are OFF. Equipment damage could result from
improper shutdown procedures.
1. Ensure that both high pressure pumps are OFF by verifying that the SYSTEM OFF indicators (figure
13, item 2) are lit at the ROWPU 1 system controller (figure 9, item 14) and the ROWPU 2 system
controller (figure 9, item 23).
2. CLOSE the following valves:
a. RO-V-1 (figure 8, item 1), main sea water supply
b. RO-V-2 (figure 8, item 2), media filter supply
c.
RO-V-3 (figure 8, item 3), media filter discharge
d. RO-V-8 (figure 11, item 3), product water discharge
3. At AMS 2 power panel 5, set the following circuit breakers to the OFF position:
a. REVERSE OSMOSIS WATER MAKER NO. 1 (figure 6, item 1).
b. REVERSE OSMOSIS WATER MAKER NO. 2 (figure 6, item 2).
4. Perform the Media Filter Backflush procedure as detailed earlier in this work package.
ROWPU FRESH WATER FLUSH
NOTE
Always perform a fresh water flush after ROWPU operations and at least once a week
when the ROWPU is in layup.
1. Perform the ROWPU system shutdown procedure as detailed earlier in this work package.
! CAUTION
If the valves detailed in the fresh water flush procedure are not closed, the fresh water
flush will not be effective, and the service life of the reverse osmosis membrane ele-
ments will be shortened.
2. CLOSE the following valves:
a. RO-V-1-1 (figure 9, item 3), ROWPU 1 inlet sea water supply.
b. RO-V-2-1 (figure 9, item 4), ROWPU 2 inlet sea water supply.
0005 00-17