AmeriWater 000-HS120, Руководство по эксплуатации и техническому обслуживанию

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3.2 Overview
The
Centurion Plus Heat Disinfection Device
has been designed to pair with a portable RO system in
order to heat disinfect the Hemodialysis machine feed water hose. This section of hose is typically not
included in the disinfection of the RO system or Hemodialysis machine. The device will act as a pass
through unless the user enables a disinfection. The device is capable of heating 11 L of water to 185 °F
and dispensing that water @ 1 L/min. A disinfection cycle is typically 1 hr from start to finish.
The device contains an internal storage tank, pump and series of valves to fill its internal tank and heat
the water up to the desired disinfection temperature. Upon reaching the disinfection set-point, the device
will send hot water to the Hemodialysis machine which should be in rinse mode. The Hemodialysis
machine will rinse with hot water for at least 10 min to complete a disinfection. If the
Centurion Plus
Heat disinfection
device detects that water is being used at a rate greater than expected (i.e. the user
did not connect the Hemodialysis machine) an alarm condition will occur stopping the disinfection cycle to
prevent 11 L of hot water to leak from the device.
3.3 Detailed description of disinfection process
The
Centurion Plus Heat Disinfection Device
is intended to act as a pass through device while a
disinfection cycle is not in process. The RO product water enters the Centurion Plus Heat disinfection
device through the inlet connection on the rear of the system. The RO product water then passes
through a Normally open valve and 3 way valve. The RO product water then leaves the device through
the product water outlet connection to feed the Hemodialysis machine. Water that is not used by the
Hemodialysis machine is then recirculated back into the Centurion Plus Heat disinfection device then back
to the RO system. The RO reject water is connected to the reject water inlet on the rear of the device.
The RO reject water passes through the system and then to a common system drain.
The Centurion Plus Heat disinfection device contains a 120 VAC outlet which is located behind the block
off plate at the rear of the device. This plug is intended to be used to power an AmeriWater Centurion
system. The Centurion Plus Heat disinfection device monitors the current draw from the AmeriWater
Centurion device to prevent both systems from performing a heat disinfection at the same time. A current
switch will open when the current draw exceeds 10 A. this current switch will prevent the heating
element inside the Centurion Plus Heat disinfection device to turn on.
When a disinfection cycle is initiated, the Centurion Plus Heat disinfection device will activate the tank fill
solenoid valve (SV1) to fill the storage tank with 11 L of water. This water will then begin to heat to the
disinfection temperature set-point. The feed RO can remain in operation during a Centurion Plus Heat
disinfection. When the disinfection set-point is reached, the device will turn the pump output on and
dispense the hot water to the Hemodialysis machine @ 1 L/min. During the dispensing mode, the
Hemodialysis machine must be in a suitable rinse mode to accept the hot water. Upon completion of the
dispensing mode, the system will enter drain mode to purge any remaining water. Then the system will
return to standby and display a “Disinfection Complete” message on the display. If an alarm condition
is detected, the device will automatically return to standby and shutoff all outputs.
NOTE: Reference flow schematic in Section 6.3.
4 INSTALLATION & COMMISIONING
4.1 Checklist
Step Item Section
Ref
1 Verify all items are included 0
2 Place on cart with RO 4.3