ThermoFlex-Manual.pdf - 第88页
6-8 ThermoFlex Section 6 Thermo Scientific
Section 6
ThermoFlex 6-7
Thermo Scientific
The Diagnostic Loop is used to view or reset the operating times of
various chiller components.
To enter the Diagnostic Loop ensure the controller display is either a blank
screen (chiller off) or displaying the process uid temperature.
Press the
key and the display will indicate SP, press again to
display SEtuP, press again to display .
Press
to enter the loop or press to return to the process uid
temperature or blank display.
Use the key to sequence down through the loop. Use the
key to sequence up through the loop.
Figure 6-6 Diagnostic Loop
Diagnostic Loop
( )
FLtrS
xxxx
xxxx
xxxx
di
unit
SP
SEtuP
enter
mode
mode
mode
mode
xx.x C
or
FLtrS - Indicates the total hours
the air and uid lters have been in
use. If desired, press and hold
and then press to
reset the value to 0.
di - Indicates the total hours the
optional di lter cartridge has been
in use. If desired, press and hold
and then press to
reset the value to 0.
unit - Indicates the chiller
operating hours. This value can not
be reset.
Testing the Safety
Features
For chillers equipped with auto rell switch we recommend slowly draining
the reservoir and ensure the auto rell activates.
6-8 ThermoFlex
Section 6
Thermo Scientific
Thermo Scientic ThermoFlex 7-1
Error Codes
The controller can display Error Codes. If the chiller is still running press enter to see if the code clears, a limit may have been only temporarily
exceeded. If the chiller shut down, the controller will continue to ash the error code. Press enter to clear the display and silence any alarm. You
can silence the alarm without clearing the code by pressing either the up or down arrow key. Once the cause of the shut down is identied and
corrected, start the chiller. If the cause was not corrected the error code will reappear. Contact our Sales, Service and Customer Support.
Section 7 Troubleshooting
Error Code Reaction Cause Actions
8888 (or
blank screen)
Chiller will not start. Software communication error.
• Cycle circuit protector on the rear of the chiller,
ThermoFlex900-10000 only.
Add
Chiller continues to run.
Auto rell, if installed,
shuts off.
The auto rell time chosen for the
customer adjustable ll setting in the
Setup Loop is set to 0 and the chiller is
congured to keep running, see
Section 4.
•Check for leaks.
•Check rEFil settings and adjust if necessary, see
Section 4.
• Add uid to the tank.
di
Chiller continues to run.
(Optional display)
The chiller operating time exceeded
Setup Loop di t alarm value. The
optional DI cartridge may need replacing.
• Check the Puralite sensor, see Section 6. If the light is
red change the cartridge, see Section 5.
• If the Puralite sensor is green, see Section 4 to revise
di t alarm value.
driP
Chiller will shut down.
(Optional display)
Fluid in drip pan (SEMI only). •Check for leaks.
•Remove the uid from the drip pan and reset the fault.
FLo-LoFLo
Chiller continues to run. The low ow alarm is set to 0.0 and the
pump ow rate is below the minimum
required, see Section 4.
•See LoFLo error code.
FLtrS
Chiller continues to run. Air and uid lters require preventive
maintenance/replacement.
• Check air and uid lters. If required, clean/change air
and uid lters, see Section 6.
• If your lters do not need cleaning, you may increase
the number of hours between preventive care
reminders. There are four levels, see Section 6.