Thermo Scientific ThermoFlex10000, Инструкция по установке, эксплуатации и обслуживанию, Страница: 138 / 210

Section 5
5-2 ThermoFlex
Thermo Scientific
A partial flow DI filter cartridge is designed to maintain water resistivity
between 1 and 3 M Ω- cm.
Note
T
he DI option results in a 0.5 gpm reduction of available flow.

Do not use a Deionization (DI) filter cartridge with Inhibited EG or
Inhibited PG. A DI filter will remove inhibitors from the solution ren -
dering the fluid ineffective against corrosion protection. Also, inhibi -
tors increase fluid conductivity.

The Puralite sensor on the back of the chiller turns red when the cartridge
needs changing (< 1 M
Ω-
cm), see Section 6. Note The Puralite sensor that
comes with the DI cartridge requires a separate power source.

Remove the two thumbscrews securing
the DI access panel. Remove the
new cartridge from the shipping bag.
The cartridge has a blue and a white
connector. Lower the cartridge into the
chiller with the blue connector facing
downward. Press down on the cartridge
lightly to engage and then rotate it ¼ turn
clockwise (do not over rotate) or until you
feel the filter click into place.
If there is a cartridge in place, first undo
the hose fitting by pressing on the quick
disconnect located on the top white connection.
The DI Cartridge will overpressurize if it is removed from the chiller
before removing the hose fitting.

Next rotate the cartridge ¼ turn counter-
clockwise and then pull the cartridge straight
up to remove it.
Push the hose fitting into the quick disconnect
located on the white end of the cartridge.
Replace the access panel and thumbscrews.
Note The cartridge can be changed with the
chiller running, however, since the cartridge
runs in a parallel arrangement, disconnecting the cartridge adds 0.5 gpm to
the main flow. The additional flow will cause an increase in system pressure
which may cause a high fluid pressure fault.

Internal DI
Cartridge
Quick Disconnect
Hose Fitting
Figure 5-3
DI Fittings
Figure 5-2
Internal DI Cartridge
Blue Connector
White Connector
Access Panel
CAUTION
CAUTION