ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0016 00
OPERATOR INSTRUCTIONS
MAINTAINING NORMAL OPERATION UNDER USUAL CONDITIONS
Table 5. Normal Alarms and Alarm Responses Continued.
Alarm
Immediate
Problem
Test or Inspection
Corrective Actions
Response
RO Feed
Pressure gage PI-202
Perform steps 3, 4, and 5.
Pressure
drops below 35 psig .
Low (during
normal
(3) In-line Strainer S-4
(3) Remove and inspect In-
(3) Clean if dirty
operation
plugged.
line strainer S-4.
continued)
(4) RO Feed Tank
(4) Remove / inspect RO
(4) Clean if dirty
Strainer S-3 plugged.
Feed Tank Strainer S-3.
(5) RO feed pump worn.
(5) Previous inspections
(5) Notify Unit Maintenance.
RO
HP Pumps
(1) Pressure control
(1) Fully open valve, start
(1) Do not let pressure drift
Operating
automatically stop.
valve HCV-401 out of
HP Pumps and adjust
above 1200 psig.
Pressure
- Set Mode to Standby.
adjustment.
valve. Observe pressure
High (while
- Drain RO feed tank.
at panel display. Do not
in operation)
- Open the MAIN circuit
exceed 1200 psig.
breaker at the PDP
(OFF position)
(2) Pressure transmitter
(2) Observe pressure gage
(2) Disconnect electrical
- Then close the MAIN
PT-301 failure.
PI-304 to make sure it is
connector at the transmitter.
circuit breaker (ON)
the same as the panel
Continue operation using PI-
- Follow normal startup
display.
304 as the indication for RO
procedures.
feed pressure. Notify Unit
- Watch RO feed
Maintenance.
pressure gage PI-304.
- Troubleshoot if alarm
re-occurs.
Product TDS
Set product hose to
(1) Conductivity sensor
(1) Check conductivity
(1) If portable TDS meter
High
discharge back to the
or transmitter failure.
using portable TDS Meter.
reads a significantly lower
water source and
TDS than the OCP display,
troubleshoot.
notify unit maintenance and
continue operation.
(2) Feed Water TDS not
(2) Check feed water TDS
(2) Be sure that OCP display
correctly set
using portable TDS meter.
has been adjusted with the
TDS Set dial to agree with
the measurement.
(3) Leaking O-ring or
(3) Check individual RO
(3) If one or two elements
damaged membrane.
element performance (see
show significantly higher
RO Element Product Flow
conductivity product water,
Test procedure in this WP).
replace O-rings and re-install.
Replace element if
conductivity remains high.
0016 00-21
