ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0017 00
OPERATOR INSTRUCTIONS
STANDBY OR SHORT-TERM SHUTDOWN OPERATION UNDER
USUAL CONDITIONS
b. Switch the Main Circuit Breaker on the power distribution panel (PDP) to OFF.
c. A-TWPS only. Shut down the TQG as described in TM 5-6115-545-12.
STANDBY SHUTDOWN COLD WEATHER OPERATION
Use this procedure during cold weather deployment under the following conditions:
The TWPS is to be shut down for less than 30 minutes, the TQG is to remain running, and the diesel-
fired heater remains on.
Or, the TWPS and the TQG are both to be shut down for no more than 15 minutes.
1. Fully OPEN Main Pressure Control Valve HCV-401 and then Auxiliary Pressure Control Valve
HCV-401A (see Figure 1 for valve location).
2. Turn the SYSTEM MODE SWITCH to STANDBY. The PLC automatically performs the following
actions:
a. HP pumps are stopped.
b. The MF feed pump is stopped.
c. Automatic valves are cycled to the standby position.
d. The RO feed pump remains ON to flush the RO membranes until the RO feed tank
empties. The low level alarm will sound when the tank is empty and the pump will stop.
3. Stop Motor-Driven Raw Water Pump P-2 if in use.
4. Close Raw Water Flow Control Valve V-107 (see Figure 1 for valve location).
5. If Diesel Engine-Driven Raw Water Pump P-1 is used, reduce the speed to idle, leave Vent Valve
V-102 on Adaptor A-02 at the pump discharge closed and leave the pump running for short
shutdowns not exceeding 30 minutes (see Figure 1 for valve location).
6. If it is necessary to stop Diesel Engine-Driven Raw Water Pump P-1, proceed to Raw Water
Diesel Engine Shutdown at the end of this work package then drain the raw water system to
prevent freezing.
7. Leave the hose heating blankets and pump heating collars installed and the Hose/Pump Heater
Switch set to ON.
STANDBY SHUTDOWN WITH DRAIN-DOWN
Follow this procedure when an operational situation requires a system drain-down. For Cold Weather
applications proceed to Short Term Shutdown Cold Weather Operation in this work package.
1. Complete the procedure for Standby Shutdown without Drain Down. Leave the TQG in
operation.
2. Set The SYSTEM MODE SWITCH to MF Drain.
a. The PLC automatic control purges the water from the MF using air.
b. The automatic valves return to Standby positions at completion.
3. After one minute return the SYSTEM MODE SWITCH to STANDBY.
4. Move the drain and vent valves to the position listed in Table 2 (refer to Table 2 for valve position
and Figure 3 to locate the valves).
0017 00-4
