AmeriWater HMS Manuale
HMS
(HORIZONTAL MULTI-STAGE)
DISTRIBUTION PUMP SYSTEM
OPERATION & MAINTENANCE MANUAL
Manufactured With Pride
In The USA
www.ameriwater.com • 800-535-5585
AmeriWater • 3345 Stop 8 Rd. • Dayton, OH 45414 P/N 98-0112A
TABLE OF CONTENTS
1.0 THEORY OF OPERATION............................................................................1
2.0 INSTALLATION ...........................................................................................2
3.0 START-UP....................................................................................................3
4.0 HMS PUMP CURVE.....................................................................................4
5.0 ADJUSTING THE TIMER (DUAL PUMPS ONLY).......................................5
6.0 SPARE PARTS LIST ...................................................................................6
7.0 DRAWINGS...................................................................................................7
7.1 SINGLE DISTRIBUTION SINGLE PHASE CONTROLLER........................................7
7.2 SINGLE DISTRIBUTION 208V THREE PHASE CONTROLLER ...............................9
7.3 SINGLE DISTRIBUTION 230V THREE PHASE CONTROLLER .............................11
7.4 DUAL DISTRIBUTION 208V, 230-460V THREE PHASE CONTROLLER...............13
7.5 DUAL DISTRIBUTION SINGLE PHASE CONTROLLER ........................................16
7.6 SINGLE DISTRIBUTION PUMP ASSEMBLY.......................................................18
7.7 DUAL DISTRIBUTION PUMP ASSEMBLY..........................................................19
P/N 98-0112A 1
1.0 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
the water back through the piping to the storage tank. This provides pressurized
water to each dialysis wall box, in addition to the re-circulation of the water. Re-
circulating the water keeps it “fresh”, minimizing bacterial growth by the constant
movement of the water throughout the system.
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 without water will result
with overheating and damage to the pump.
The distribution pumps are available as single pump or dual pump configurations.
All distribution pumps are available with 220V single phase, 208V 3 phase, 230V
3 phase, and 460V 3 phase.
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 the AUTO mode for normal operation.
If one pump is taken down; ensure the second pump is set on HAND mode.
If this is not done; the controller will attempt to cycle between them. The
system should only be run in HAND mode for the length of time that 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 other pump that does not have the
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.
P/N 98-0112A 2
2.0 INSTALLATION
The following guidelines should be met at installation.
1. The customer is to provide properly sized wiring to the distribution pump
control enclosure.
2. Place the pump system on firm level flooring, and anchor to the floor in
order to prevent movement from vibration or bumping.
3. The inlet piping, and/or hoses from the storage tank to the pump system
should be equal to, or greater in diameter, than the inlet piping that is on
the pump system.
4. The outlet piping, and/or hoses of the pump system should be equal to, or
greater in diameter, than the outlet piping that is on the pump system.
5. Locate the pump control on a wall as close to the pump system as
possible. When installing a distribution pump along with an AmeriWater
Central Water System, refer to the Plumbing and Instrumentation Diagram
(P&ID) for the best location, and where connections are made.
6. Follow all local plumbing and electrical codes.
7. After all guidelines have been met, connect the distribution pump wiring to
the motor contactor, located in the control panel (refer to the control wiring
diagram provided in this manual, and with the distribution pump control).
Connect the three phase or single phase power source to the Main
ON/OFF disconnect switch located inside the control panel.
P/N 98-0112A 3
3.0 START-UP
1. Open the inlet and outlet valves to the pump and allow the water in the
storage tank to “flood” the inlet of the distribution pump(s). If the storage
tank does not have water in it, fill it to above the lowest float switch before
attempting to use the pump(s).
2. Verify that the voltage on the pump(s) matches what is indicated on the
overload of the motor starter(s).
3. Once the power source has been connected, check the rotation of the
pump(s).Turn the disconnect switch to the ON position. Jog each pump by
momentarily turning the pump power switch to the HAND position. An
additional person may be helpful to see which way the motor armature is
turning just before coasting to a stop. If the rotation is backwards, switch
any two of the three non-ground pump wires on the motor contactor that
are located inside the control panel.
4. After rotation has been verified, turn the switch on the controller to HAND.
Allow water to flow to re-circulate through the loop, and return into the
storage tank for a few minutes. The water flow should then be verified by
observing the flow meter on the return header of the storage tank. If this
is a dual pump system; place pump #1 into HAND mode to ensure that
there is adequate flow through the system at the holding tank flow meter.
Once verified, repeat this for pump #2.
5. Place the system into AUTO mode to verify that the low level cut off
switch operates correctly. For dual pump systems, this will need to be
done for each pump.
6. For the dual pump system only, the timer will need to be verified. This is
accomplished by setting the timer to its minimum value, and ensuring the
system is alternating between the pumps. See page 5 for the details on
adjusting the proper set-point.
7. The inlet and outlet valves are provided to allow for isolation of each pump
if maintenance is needed. During operation, leave all of the inlet and the
outlet valves open.
8. While performing the start-up of your distribution pump that is connected
to a central system storage tank; adjust the pressure relief valve on the
storage tank header, so that the pump outlet pressure and flow rate at the
storage tank meets CMS requirements. Refer to the manual that was
provided with your storage tank system for the proper adjustments. The
pump curve is provided on page 4.
P/N 98-0112A 4
4.0 HMS PUMP CURVE
P/N 98-0112A 5
5.0 Adjusting the Timer (Dual Pumps only)
While the power is off, and the system is properly locked out; open the control panel.
Located in the middle of the panel; you will see the timer like the one shown below. To
adjust the timer; simply insert a small screwdriver into the screw, at the lower right
hand face of the timer. Rotating this screw will toggle the time interval modes; which
are displayed on the face of the timer.
Once all validation of your set-up is complete; you must re-set the timer to 5 hours.
P/N 98-0112A 6
6.0 Spare Parts List
Part # Description
80-HMS1 Pump, 1.5 HP, Single Phase, 38GPM
80-HMS3 Pump, 1.5 HP, Three Phase, 38GPM
041-0033 Check Valve, Ball Spring Loaded
43-0021 Stainless Steel Pressure Gauge 0-100psi CBM
43530710 Stainless Steel Pressure Gauge 0-100psi
61670245 Contactor, 9 AMP, 3 Pole, 120V Coil
61760226 Motor Contactor/Overload 12 AMP Maximum
63760186 Fuse 15A
63760133 Fuse, 2A, 250V
64760225 Timer, 8-Pin, 120V
64760108 Base, Timer, 8-Pin
61-0002 Relay, 30 AMP, 300V, SPST, NO, 120V-Coil
P/N 98-0112A 7
7.0 DRAWINGS
7.1 Single Distribution Single Phase Controller
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