AmeriWater DISTRIBUTION PUMP SYSTEM, Руководство по эксплуатации и техническому обслуживанию, Страница: 3 / 21

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1.0 INTRODUCTION
The AmeriWater distribution pump takes the water from the storage tank, pumps it through the
distribution loop to the points of use for dialysis and re-circulates water back through the
piping to the storage tank. This provides pressurized water to each dialysis wall box in
addition to re-circulating the water. Re-circulating the water keeps it “fresh” by minimizing
bacteria growth by the constant movement of water.
Please read the Operations Manual before using the system. Contact AmeriWater
Customer Service with any questions at 1-800-535-5585 Monday through Friday 8:00 a.m. to
5:00 p.m. eastern standard time. For after hours emergencies call 1-800-535-5585 and follow
the instructions on the recorded message. Our on-call technician will return your call as soon
as possible.
2.0 THEORY OF OPERATION
When the water is at the minimum level (always controlled by the lowest float switch on the
storage tank), the distribution pump is not allowed to automatically operate through the
distribution controller. When the water level is below the minimum level, the distribution pump
will not operate in “AUTO”, but may be operated in “HAND” (manual operation). The
distribution pump should only be placed in “HAND” to empty the storage tank. It should not be
left unattended during this process. Running the distribution pump for an extended period
without water will result with overheating and damage to the pump.
The distribution pumps are available as a single pump or a dual pump. All distribution pumps
are available in 220V single phase, 208V 3 phase, 230V 3 phase and 460V 3 phase. The
distribution pumps use an SSV pump and have a capability of running at rated volume up to
75 PSI.
The distribution pump controllers have either fuses (for single phase), or overloads (for three
phase) to protect the pumps and wiring from overload damage.
The controllers for the dual distribution pumps have an alternating feature that will allow the
pumps to alternate from #1 pump to #2 pump that is controlled by a timer set at 5 hours.
WARNING: Both pumps need to be in auto mode for normal operation. If one pump is
taken down, ensure that the second pump is set to manual mode. If this is
not done, the controller will attempt to cycle between them. The system
should only be run in manual mode for the length of time it will take to
bring the second pump back on line.
Another AmeriWater standard feature for the dual distribution pump controller is to have an
overload sensor for each pump. If a pump has an overload condition, the controller will
automatically switch to the pump that does not have an overload. This will prevent a possible
water delivery shutdown during the dialysis procedure. An indicator light is on the front panel
of the controller to show which pump has an overload failure.