AmeriWater HMS Handbuch

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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