ThermoFlex-Manual - 第97页
Thermo Scientic ThermoFlex 7-9 Section 7 Er ror Code Reaction Cause Actions Er 41 Chiller continues to run. Momentar y communication er ror between displa y and main control board. •Cycle circuit protector on rear of ch…
Thermo Scientic ThermoFlex 7-8
Section 7
Error Code Reaction Cause Actions
Er 33
This error code has priority
over L oT.
Chiller will shut down.
Note Chiller will not
restart until process uid
temperature exceeds +2°C.
Reservoir uid temperature
below the factory preset value
of +2°C.
• Check ambient temperature. Chiller may not to be able to reach
setpoint at low ambient temperatures.
• Ensure that the ambient temperature is not exceeding the
recommended range, see Section 3.
•Verify/adjust controller PID values, see Section 7.
• Add insulation to external plumbing lines to reduce the heat-loss
to the environment.
•For water-cooled chillers check facility water temperature.
Er 35
This error code has priority
over Hi P1.
Chiller will shut down.
Process pressure (P1)
exceeded factory preset value
for greater than 30 seconds.
Preset Values:
T0, T1 and T5- 105 psi
P1 and P2 - 105 psi
P3 60 Hz - 48 psi
P3 50 Hz - 32 psi
P4 60 Hz - 85 psi
P4 50 Hz - 60 psi
P5 60 Hz - 87 psi
P5 50 Hz - 56 psi
• Check application valves and ensure that they have not changed
or been closed. Note If routine shut-off of the process ow is
required then an external pressure regulator accessory should be
added - contact Thermo Fisher.
•May occur as a result of changing the internal DI cartridge.
Disconnecting the cartridge adds an additional 0.5 GPM to the
main ow, see Section 5.
•Check for debris in the application or clogged external lters.
• Double check uid lines. Excessive bends, long tubing and
diameter reductions can affect the pump’s discharge pressure.
Note If diameter reductions must be made, they should be made
at the inlet and outlet of your application, not the chiller.
Er 36
This error code has priority
over Lo P1.
Chiller will shut down.
Process pressure (P1) below
factory preset limit of 2 psi (all
pumps) for greater than 15
seconds.
Possible pump motor
overload.
•Ensure that the chiller reservoir is not too low.
• Chiller requires >2 PSIG application pressure drop. If a bypass
valve has been installed, some restriction may need to be added to
the bypass line.
•Allow chiller to cool down
Thermo Scientic ThermoFlex 7-9
Section 7
Error Code Reaction Cause Actions
Er 41
Chiller continues to run. Momentary communication
error between display and
main control board.
•Cycle circuit protector on rear of chiller off and on,
ThermoFlex900-10000 only.
Er 42
Chiller continues to run. Momentary internal
communications error.
•Contact our Sales, Service and Customer Support.
Er 47
Chiller will shut down. Chiller’s optional remote
EMO button depressed.
•When able, reset the EMO.
Er 48
Chiller will shut down.
(Optional display.)
Chiller’s optional EMO
button depressed.
•When able, reset the EMO.
Er 59
Chiller will shut down. Invalid level fault. Chiller
sensed both a high level and
low level reservoir uid level.
•Contact our Sales, Service and Customer Support.
Er 62
Chiller will not start.
(Chillers equipped with
optional Analog I/O.)
Probe not properly
connected.
Shorted remote temperature
probe.
•Check connection.
Er 63
Chiller will not start.
(Chillers equipped with
optional Analog I/O.)
Probe not properly
connected.
Open remote temperature
probe.
•Check connection.
Er 64
Chiller will continue to run
Chiller the last valid setpoint
received.
(Chillers equipped with
optional Analog I/O.)
Analog remote setpoint
is enabled and the chiller
receives a voltage or current
level that is outside the
chiller’s set point range.
• The error can be cleared only after a valid set point is received, or
the remote analog setpoint is turned off.
Section 7
7-10 ThermoFlex
Thermo Scientific
Checklist
Chiller will not start
Check electrical connections.
For rst time use, please refer to the quick start instructions included
with your chiller or the copy in this manual. The manual's copy follows
the Table of Contents.
Check the controller for error codes, see Error Codes in this Section.
Ensure the optional GFCI breaker located on the rear of the chiller is
in the up position.
For ThermoFlex900 - 10000 chillers ensure the circuit protector is in the
on ( I ) position.
Make sure supply voltage is connected and matches the chiller's
nameplate rating ±10%
No display on controller or display is 8888
For ThermoFlex900 - 10000 recycle the circuit protector on the rear of
the chiller.
Clearing Error Codes
Note the code in case it clears before you are done troubleshooting.
If desired, silence the audible alarm by pressing the up or down arrow
key.
If the chiller shut down, the controller will continue to ash the error code.
Press enter to clear the display and silence any alarm. Refer to Error
Codes in this Section. 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.
If the chiller is still running, press enter to see if the code clears, a limit
may have been only temporarily exceeded. If the error code does not
clear press
until the display ashes between the error code and
the temperature and then press enter. If the code still does not clear
refer to Error Codes in this Section.