Lightobject S Series Instructions

Lightobject Fiber Laser Water Chiller Instructions
Please read the instructions below before using the chiller.

Startup procedures

1) Remove the cap on the back and slowly pour in distilled water until the water
level reaches below the "Full" line. This ensures accurate temperature reading
and high cooling efficiency.
2) Connect the chiller's water outlet to the laser machine's water inlet. Connect
the chiller's water inlet to the laser machine's water outlet.
3) Make sure the power button is off. Connect the protection ground wire.
Connect the AC power cord from the back of the chiller L&N to a wall mount AC
outlet. The two thins wires on the left H1 and H3 are optional alarm output.
4) Power up the chiller. Check the water flow direction. Check for any leaks.

Operation

Before using the laser, set the water temperatures to the recommended temperatures for the
laser machine. When the chiller power is on, water pump is always running. The chiller will try
to maintain water temperature to the Set Value within +/-one degree. There is a heater
connected to the 6mm outlet, so its temperature is higher than the water from the 12mm
outlet. The refrigerant split valve will open when water temperature drops below set
temperature. It will close again when water temperature rises above SV+FB. The purpose of this
valve is to keep the water temperature relatively constant during the use of the laser.

Alarm

1) Water is not flowing.
Loud beeping. The water flow sensor is installed behind the 12mm outlet.
2) The current water temperature is too high/low.
Loud beeping. Press esc button to turn off alarm. Make sure the alarm temperatures are correct.
The H1 and H3 alarm pins become open circuit when alarm occurs. Closed circuit when chiller
is running normally.
LightObject 2022