Spent Side Theory - Fresenius Medical Care 2008K2 Troubleshooting Manual

SPENT SIDE THEORY: Per the Figure below, when "Select Program" is up the top balancing chamber
(BC) valves (V31 – V34) are supposed to be open, the bottom BC valves (V35 – V38) are closed. Flow
Pump #21 is off which is why it must be plugged into the Deaeration Pump's distribution board position.
Also, the red dialyzer line is placed into a bucket of water to provide the Flow Pump with a source of water.
PART 3 THEORY: V36 is plugged into V33's position which should open V36. If both V36 and V32 are
open the Flow Pump draws from the bucket and sends it through the spent side of the balancing chamber,
through V30, to drain where it is measured.
PART 4 THEORY: V38 is plugged into V31's position which should open V38. If both V31 and V38 are
open the Flow Pump draws from the bucket and sends it through the spent side of the balancing chamber
to drain.
Figure 18 – Parts 3 and 4
LEFT BLANK INTENTIONALLY
2008K/K2 Troubleshooting Guide
Page 77
P/N 507298 Rev. H