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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
Purpose:
The purpose of these instructions is to define the process of installing the Enhanced Back Flow
Prevention Retrofit Kit (P/N 190997) Kit into a 2008® Series Hemodialysis machine with
hydrochamber installed.
Machine Prerequisites:
2008® Series Hemodialysis machines with hydrochamber
installed.
Vent Port
Required Parts/Tools:
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Back Flow Prevention Retrofit Kit P/N 190997
Phillips Screwdriver
Tubing Cutter
Pliers
Hemostat Clamp
Ruler
Hydrochamber
Procedure:
Caution: Assembly, installation, adjustment, or repair is to be performed by Fresenius Medical
Care or by persons trained by Fresenius Medical Care.
Machine Preparation
1.
With the machine turned off, remove power from machine.
2.
Turn off water supply and disconnect from machine.
3.
Stabilize the machine by applying caster brake to lock wheels (see Figure 1).
Unlocked
Locked
Figure 1: Applying the brake on the machine (right side)
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
Parts Removal
Note: The middle and lower rear panels have ground wires attached. Take care not to
damage these wires when removing these panels.
4.
Remove the middle and lower rear panel covers and place in a clean work area. See
Figures 2 and 3 for screw locations. Unplug each cover’s ground wire.
Figure 2
Figure 3
5.
Using Figures 4 and 5. Locate and remove the three (3) bolts securing the hydraulics in
the cabinet.
Figure 4
Figure 5
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
6.
Remove acid and bicarbonate connectors from ports and disconnect UF output from fluid
sample port.
Warning:
7.
Use proper lifting technique when removing and installing hydraulic chassis.
Remove hydraulics from the cabinet and secure on a sturdy work bench or cart.
Caution (bibag® machines): Care must be taken to not damage the 5 pin cable still connected
between the bibag hydraulic assembly/valves and the bibag holder
on the inside of the cabinet.
8.
Disconnect electrical wires from valve 29 (V29) and valve 41 (V41) – (see Figure 6).
9.
Remove the clear tubing from V29 (see Figure 6).
V29/V41 dual valve
block assembly
V30 Clear tubing
V29 Electrical wires
V29 Clear tubing
V41
Note: Electrical
wires not shown
Figure 6 - Rear of Hydraulics (Top View)
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
10.
Remove clear tubing from the top of chamber A of the hydrochamber (see Figure 7).
Tubing fromV29/V41 port to
chamber A (hydrochamber)
Figure 7
11.
Verify water supply is off.
12.
Remove V41 clamp and tubing from heat exchanger (see Figure 8).
V41 tubing from heat exchanger
Figure 8
13.
Remove the screw securing V29/V41 dual valve block assembly to the hydraulic front
plate (see Figure 6).
14.
Remove V29/V41 dual valve block from machine and place on a clean work surface.
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
Note: To avoid water spillage use an appropriate size container when performing the next step.
Chamber A will empty approximately 150ml of fluid
15.
Remove the plug from the bottom of chamber A on the hydrochamber and collect fluid
(see Figure 9).
Figure 9
16.
Detach the clear tubing previously removed from the V29/V41 dual block.
17.
Measure the tubing from the previous step, and cut to approximately 11 inches.
18.
Remove V29 and V41 from dual block.
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
Parts Assembly
19.
Install new O-rings (P/N 579072) on the new dual valve mounting block assembly
(P/N 290814).
20.
Locate the 29 and 41 labels imprinted on the dual valve mounting block
(see Figures 10 and 11).
V41 output port
29 label
41 label
V29 output port
Figure 10
Figure 11
21.
Install nuts (P/N 553621) on V29 the side of the dual valve mounting block
(P/N 290814); best if done one nut at a time.
22.
Attach and secure V29 (no tubing attached).
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
23.
Install nuts (P/N 553621) on V41 the side of the dual valve mounting block assembly
(see Figure 12); best if done one nut at a time.
Figure 12
24.
Attach and secure V41 (with the attached white tubing).
25.
Install the 11 inch clear tubing to V41 output port (see Figure 11).
26.
Start the mounting screw (P/N 552275) into insert with two full turns on the front of the
dual valve mounting block.
Installation
27.
While routing the 17 ½ inch clear tubing below the bicarbonate pump and above the
chassis, position the V29/41 dual valve mounting block assembly into hydraulics.
28.
Continue routing the 17 ½ inch tubing from V29 port towards the bottom of chamber A
(see Figure 10).
29.
Connect the appropriate electrical wires to V29 and V41 (see Figure 6).
30.
Secure the new dual valve mounting block assembly to the front chassis (see step 13).
31.
Connect clear tubing from heat exchanger to V29 (see Figure 6).
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
32.
Connect V41 tubing to the heat exchanger (see Figure 8).
Recirculation
port
Figure 13
Figure 14
33.
Connect the 17 ½ inch tubing, with recirculation port attached, to the bottom of
chamber A (see Figures 13 and 14).
34.
Secure the recirculation port.
35.
Attach tubing from V41 port to the top of chamber A (see Figure 7).
Note: Push the hydrochamber away from water inlet regulator.
36.
Verify tubing from V41 port to the top of chamber A is completely seated.
37.
Place hydraulics into cabinet while verifying that concentrate wands and UF fluid sample
tubing are in front of hydraulics and correctly positioned in front of machine.
38.
Move hydraulics forward and secure with front hydraulics screw (see Figure 4).
39.
Connect UF fluid sample port.
40.
Connect acid and bicarbonate connectors to their ports.
41.
Clean and dry inside of machine cabinet and bottom portion of hydrochamber.
Post Installation Testing
42.
Connect and turn on machine water supply.
43.
Connect power to machine.
44.
Use a plastic hemostat or similar device to clamp the recirculation port tubing
(see Figure 14).
45.
Power on machine and select rinse.
46.
After 10 seconds, verify that there is not a continuous “No Water” message.
47.
Remove hemostat clamp or similar device from tubing and power off machine.
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Enhanced Back-Flow Prevention Installation Instructions (Hydrochamber)
48.
Power on machine and enter dialysis.
49.
Verify machine is alarm free and conductivity is stable.
50.
Inspect and verify the bottom of the machine cabinet and the bottom portion of the
hydrochamber are dry and there are no fluid leaks.
51.
Perform both self-tests and verify all tests pass.
52.
Perform a 15 minute rinse.
53.
Inspect inside of cabinet and verify there are no fluid leaks.
54.
Perform heat-disinfect.
55.
Inspect inside of cabinet and verify there are no fluid leaks.
56.
Secure hydraulics with two screws (see Figure 5).
57.
Install lower panel cover ground and secure (see Figure 3).
58.
Install middle panel cover ground and secure (see Figure 2).
59.
Unlock caster brake.
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