Thermo Scientific ThermoFlex10000, Installation, Operation And Maintenance Manual, Page: 147 / 210

ThermoFlex 6-1
Thermo Scientific
Section 6
Preventive Maintenance
Only Thermo Fisher should provide any required replacement parts.
The ThermoFlex chiller has an integrated preventive maintenance timer that
will alert you when it is time to perform preventive maintenance. This unique
feature will remind you to change your air and fluid filters.
Based on the environment in which your chiller is located, you can choose
from four levels of preventive maintenance off, L1, L2, and L3:
• off – Disables the alert
• L1 – 1,000 hours - default setting
· Heavy manufacturing environment
· Airborne particulate created during manufacturing process
• L2 – 2,000 hours
· Typical production environment
• L3 – 3,000 hours
· Clean environment – filtered air
· Typically laboratory or research environment
Change/set the level using the Setup Loop, see Section 4. When the chiller
exceeds the chosen limit, the controller will flash and, if
enabled, an audible alarm will sound.
To clear this message press . This will automatically restart the
preventive maintenance timer for your filters. Each time the chiller exceeds
the chosen time, the controller will remind you that it is time to change your
filters.
If you change your filters before the preventive timer trips, you can clear the
timer by using the Diagnostic Loop explained in this Section.
Note For air-cooled chillers, both the air and fluid filters in the ThermoFlex
can be changed while the chiller is running. For water-cooled chillers, only the
fluid filter can be changed while the chiller is running.

Preventive
Maintenance Timer
( )