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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:

    *FAN SET

 :  (Field varies) Shows current active set-point or fan power

    *LIQ TEMP

 :  Shows reservoir liquid temperature

    CH1 TEMP

 :  Shows first external sensor temperature (if connected)

    CH2 TEMP

 :  Shows second external sensor temperature (if connected)

    FAN

 :  Shows radiator fan RPM

    *PUMP

 :  Shows pump impeller RPM

    *FLOW 

:  Shows 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 reservoir 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 system in various directions to assist with 

bleeding air from the cooling loop. If it becomes necessary to significantly tilt 

the unit to assist with priming, close the fill port and power-off the unit before 

doing so.

2. The temperature alarm sounds and I’m not sure why...

The  offending  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.

3. My system appears to be leaking fluid or water...

Check that all fittings are properly installed and tightened. This product uses 

NPT 1/4in threaded fittings. Plumber’s tape is required to seal the fittings.

4. The front display is locked up or not responding.

Reset all system settings by holding 

▼ + ▲ for 3 seconds. After a reset, all 

configuration settings (temperature, alarm, fans, etc.) must be updated again.

5. The pump is not operating at lower power level settings.

Due to variations in pumps, the motor may not always operate at the lowest 

speed settings. This is more likely to occur if the speed is increased from a very 

low level rather than decreased from a higher level. The pump speed must be 

kept on a level that allows the motor to operate continuously. Note that during 

system power-up, the pump automatically throttles to maximum speed before 

dropping to the user’s preset level (to help prevent stalling).

Troubleshooting

The first line will flash. Press 

▼ or ▲ to change what this line will display:

    FAN SET

 :  (Field varies) Shows current active set-point or fan power

    LIQ TEMP

 :  Shows reservoir liquid temperature

    CH1 TEMP

 :  Shows first external sensor temperature (if connected)

    CH2 TEMP

 :  Shows second external sensor temperature (if connected)

    FAN

 :  Shows radiator fan RPM

    PUMP

 :  Shows pump impeller RPM

    FLOW 

:  Shows liquid flow rate through the unit

Press

 

 to move to line 2, and similarly use

 

▼  or  ▲  to  choose  what  will  be 

displayed on the second line. Press

 

 again to exit.

The  first  option,  “FIXED”,  will  flash. 

Press 

◄  or  ►

 to change between these 

options. Press 

 to configure one of the selections, 

or press 

▲ to exit. 

If “FIXED” 

is selected, two lines will be shown:

    FAN SET         50%

 :  First line display option

    LIQ TEMP    30.5C

 :  Second line display option

DISPLAY SET

The display settings configure which values you wish to appear on the front display 

and how they are shown:

    DISPLAY
    FIXED     CYCLIC

 :  Show 2 fixed values or cycle multiple values

Summary of Contents for ALR-4500

Page 1: ...Superior Liquid Cooling Systems English v1 0 www koolance com ISO 9001 Printed in Korea ALR 4500 User s Manual ALR 4500 User s Manual...

Page 2: ...ation control life support or weapon launching control If these products are used in such hazardous environments Koolance Incorporated does not warrant them TRADEMARKS The Koolance name and logo are t...

Page 3: ...e harmful or fatal if swallowed KEEP THIS AND ALL DANGEROUS CHEMICALS OUT OF THE REACH OF CHILDREN Please refer to the coolant MSDS available on our website www koolance com KOOLANCE CONTACT INFORMATI...

Page 4: ...clamp to keep it secure Be sure to thread the compression ring or tube clamp onto the tubing before attaching it Squeeze the tube while pushing it firmly over the fitting Tubing should completely cove...

Page 5: ...may need to be tilted gently to assist with air evacuation The reservoir level will decrease during this procedure Remove the fill port cap and add more liquid as needed Slowly fill the system with c...

Page 6: ...LOW Coolant Flow Rate Range 0 1 to 20 0LPM LEVEL Low Coolant Level in Reservoir ON or OFF to disable PUMP SET The pump speed can be manually set from 1 lowest to 10 highest PUMP 1 10 7LV Pump Speed Le...

Page 7: ...perature 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 se...

Page 8: ...age resulting from warranty service performed by a non authorized repair service No responsibility is assumed for any special incidental or consequential damages due to a defective Koolance product In...

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