P/N 98-0115
1
DISTRIBUTION PUMP
THEORY OF OPERATION
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.
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 115V and 220V single phase, 208V 3 phase,
230V 3 phase and 460V 3 phase. The distribution pumps have a capability of
running at rated volume up to 70 PSI.
The distribution pump controllers have either fuses or overloads 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.
Summary of Contents for GRUNDFOS CHI
Page 2: ...P N 98 0115 Rev A...
Page 7: ...P N 98 0115 4 GRUNDFOS Pump...
Page 8: ...P N 98 0115 5...
Page 9: ...P N 98 0115 6...
Page 10: ...P N 98 0115 7...
Page 11: ...P N 98 0115 8 Pump Connections...
Page 12: ...P N 98 0115 9 Pump Connections...
Page 15: ...P N 98 0115 12 Single Distribution Single Phase Controller...
Page 16: ...P N 98 0115 13 Single Distribution 115 220V Single Phase Controller Schematic...
Page 17: ...P N 98 0115 14 Single Distribution Three Phase Controller...
Page 18: ...P N 98 0115 15 Single Distribution 208V 230V Three Phase Controller Schematic...
Page 19: ...P N 98 0115 16 Single Distribution 460V Three Phase Controller Schematic...
Page 20: ...P N 98 0115 17 Dual Distribution Single Phase Controller...
Page 21: ...P N 98 0115 18 Dual Distribution 220V Single Phase Controller Schematic...
Page 22: ...P N 98 0115 19 Dual Distribution Three Phase Controller...
Page 23: ...P N 98 0115 20 Dual Distribution 208V Three Phase Controller Schematic...
Page 24: ...P N 98 0115 21 Dual Distribution 230 Volt Three Phase Controller Schematic...
Page 25: ...P N 98 0115 22 Dual Distribution 460 Volt Three Phase Controller Schematic...
Page 26: ...P N 98 0115 23 Single Distribution Pump Assembly...
Page 27: ...P N 98 0115 24 Dual Distribution Pump Assembly...
