User guide
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User Manual
If your pump has a speed control option, set it to the lowest level during 
this time. Allow the pump to run until the liquid noise subsides.
During this process, cooling systems often need to be tilted gently 
to allow air to escape from the pump and radiator. Until the pump 
is “burped” in this manner, it can cavitate and there will be no 
circulation. (This does NOT indicate a problem with the pump.)
The reservoir level will decrease during this procedure. Remove the fill 
port cap and add more liquid when needed. If you frequently hear this 
rushing noise in the future, it indicates the need for more coolant.
Replace the fill port on the reservoir. Do not overtighten the fill port.
The cooling system should be powered on to assist in the filling process. This also 
allows you to check hose connections and make sure there are no tubing folds, 
leaks, or blockages. If cooling a computer, this can be done without powering on 
other hardware for extra safety (see below).
CAUTION: Jumping the incorrect ATX power supply pins can cause 
permanent damage to the power supply.
!
Make sure the AC power cord is attached to the power supply. If the power supply 
has a rear switch, it must be set to the ON (-) position. Using the included green 
Jumper Wire, insert the metal prongs into the fourth and sixth holes on the 20-24 
pin ATX motherboard power supply plug (usually green and a black ground wire; 
See diagram).
That’s it! Replace the ATX motherboard connection and boot-up the computer.
Filling & Maintenance
With normal use, Koolance’s liquid coolant should be replaced every 2-3 years. If 
it ever becomes contaminated, unclear, or significantly changes color, it should be 
replaced immediately. A Koolance “drain valve” (sold separately) is recommended 
to make that process easier.
If you are upgrading or removing a cooling block in your system, please follow the 
instructions below.
Adding Coolers & Maintenance
CAUTION: Any time a hose is disconnected with coolant still inside, 
leaking will occur. It is highly recommended to empty your cooling 
system of coolant before disconnecting any hoses. 
!
Radiator Performance
Over time, dust will accumulate on the radiator. While the cooling system may  
continue to operate in this condition, performance can decrease. To keep the 
system clean, check the radiator periodically (through the top fan grill) and use 
a can of electronics air cleaner if necessary.
Working on a liquid cooling system is much easier and safer when liquid coolant is 
removed beforehand. However, certain procedures can be done without removing 
the coolant.
A binder clamp (available at office supply stores) is helpful for keeping a hose folded 
while removing or adding coolers. Even so, pressure within the cooling system is 
such that liquid will not easily flow out unless relieved elsewhere-- for example, by 
opening the reservoir fill port.
Bend the hose directly before and after the section to be worked on. Place a binder 
clamp on both bends, or tie them in this position to help avoid fluid loss. There will 
be some liquid exposed; do not operate on the cooling system in this manner near  
or above electronic hardware.










