Koolance EXC-800-R - Manual (Page 8)

12 13 User Manual
If “CYCLIC” is chosen from the DISPLAY SET menu, multiple values can be rotated
through the front display.
The first line will flash. Use ▼ and ▲ to navigate to other lines. Press
◙
to enable
or disable each value. This will remove the asterisk, thereby hiding that line from
being shown on the main screen:
*LIQ SET : (Field varies) Show current active sensor and user set-point
*AMB TEMP : Show ambient air temperature
LIQ TEMP : Hide liquid temperature
*EXT TEMP : Show external sensor temperature (if connected)
FAN : Hide condenser fan RPM
PUMP : Hide pump impeller RPM
*FLOW : Show liquid flow rate through the unit
Press ◄ to return to the previous menu, or press ► to exit DISPLAY SET.
▲
▼
We hope your Koolance system will provide you with years of reliable cooling
performance. To help avoid unnecessary RMA issues, we have prepared this list
of possible operational problems, and their most common solutions.
1. After filling the reservoir with coolant and turning on the system, there are no
visible signs of liquid movement...
Check the flow meter value (see “DISPLAY SET”). If there is no detected flow
immediately after filling the reservoir, or the flow rate is very low or periodic,
this usually indicates the pump has not finished priming. Open the fill port on
top of the chiller and temporarily set the pump speed to 10 (see “PUMP SET”)
to help push out the air.
If possible while the pump is running, gently tilt your cold plates or other
components connected to the chiller in various directions to assist with
bleeding air from the cooling loop. If it becomes necessary to tilt the chiller to
assist with priming, close the fill port and power-off the unit before doing so.
3. The temperature alarm sounds and I’m not sure why...
The active temperature sensor and value will flash in the front display whenever
an alarm sounds. Check that your currently selected temperature sensor and
alarm are configured as desired (see “TEMP SET” and “ALARM SET”). If you
are certain the cooling system is working properly otherwise, try resetting all
system settings by holding ▼ + ▲ for 3 seconds.
4. My system appears to be leaking fluid or water...
Check that the fittings on the rear inlet/outlet and drain plug are securely tight-
ened (by hand, not with tools). They are parallel type threads, so no plumber’s
tape or putty should be used or this can interfere with proper sealing.
If during operation the outsides of your tubing or cold plates is wet, this can
indicate condensation. The chiller temperature setting should not be lower than
the ambient room air temperature. (See “TEMP SET” for recommendations.)
5. The front display is locked up or not responding.
Reset all system settings by holding ▼ + ▲ for 3 seconds. After a reset, all con-
figuration settings (temperature, alarm, fans, etc.) must be updated again.
Troubleshooting