L3214 Laser Cutter
User’s Manual
Laser cutting system components
30
2.5
Water Chiller
2.5.1
General Description
A specialised laser water chiller performs water circulation
cooling on the machine’s laser source and regulates its
temperature to prolong its life.
2.5.2
Temperature
The thermostat controller uses a setpoint which is the target temperature, i.e. the water
temperature that is maintained in the reservoir. When the laser cutter is in operation and the
cooler reservoir temperature reaches the se 2°C, the water chiller starts operating and
cools the reservoir down until the temperature setpoint - 2°C is reached, after which it stops
operating.
The recommended target temperature is the ambient temperature of the surroundings (this is
usually around 20 ° C). This setpoint is preset and should not normally be changed, but it can
be by pressing the
Set
button and adjusting the temperature using the arrow keys. The normal
coolant temperature ranges from 18°C to 25°C.
If the water temperature falls below the surroundings temperature, condensation will form on
the pipes and on the laser tube, which can result in water dripping into the laser PSU and onto
the electrical terminals inside the laser cabinet. When this happens, power off the machine
immediately and check the chiller setting, wipe the affected areas dry and allow the water in
the chiller to warm for 30 minutes before resuming cutting.
ATTENTION
: Under no circumstances should the water temperature be allowed
to reach or fall below dew point.
ATTENTION
: Operating the cooler unit at temperatures lower than those
specified may result in serious damage to the laser due to condensation. This
type of damage is not covered by manufacturer warranty.
2.5.3
Safety precautions
The laser system is equipped with its own thermal cutoff to avoid damage to the laser, in case
the operating temperature exceeds 50°C.
ATTENTION
: Do not cover the cooler. Always
make sure that air can enter the left-side filter and
exit the right side unimpeded.
