15
c.
Turn the unit around to provide access to the
drain plug on the lower edge of the back
panel.
d.
Place the drain plug over a sink, or place a
bucket or other suitable large container under
the drain plug. Remove the drain plug by turn-
ing it while pulling until it comes out.
e.
Drain remaining water from the reservoir and
system.
f.
Replace the drain plug, taking care to fully in-
sert it into the drain tubing.
g.
Remove cartridges and filter and install empty
cartridge tubes (part number D7034) accord-
ing to the instructions in Cartridge
Replacement (page 10).
2.
Remove Ventgard cap and pour 6 liters of pretreat-
ed feedwater into reservoir.
3.
Add 10ml to 20ml of household chlorine bleach
(5.25% sodium hypochlorite) to reservoir.
4.
Connect the unit to the power supply. Press the
“START” button to turn unit on.
5.
Allow the unit to recirculate the disinfecting solution
for thirty minutes. Cycle the draw-off valve to sani-
tize the valve.
6.
Drain the system as described in step 1 of this sec-
tion.
7.
Refill the feedwater reservoir with feedwater and re-
circulate the water through the system for ten min-
utes.
8.
Drain the system as described in step 1 of this sec-
tion.
9.
Remove the empty cartridge tubes according to the
instructions in the Cartridge Removal section.
Drain and retain the empty cartridge tubes for
future use.
NOTE
Drain plug is not attached to unit; use care when
removing it over an open drain to avoid dropping it
into the drain.
WARNING
Avoid splashing disinfecting solutions on clothing
or skin.
Ensure all piping connections are tight to avoid
chemical leakage.
Ensure that overflow drain tubing is directed to
drain to avoid chemical leakage during disinfect-
ing.
Ensure adequate ventilation.
Carefully follow manufacturer’s safety instructions
on labels of chemical containers and material
safety data sheets.
M
AINTENANCE AND
S
ERVICING
