601 North Verity Parkway
Middletown, OH 45042
Phone (513) 320-2748
Instructions for use of the CW-5000 laser chiller (October 2009)
WARNINGS:
Make sure to apply the correct power. Some chillers use 110 VAC, others need 220VAC.
The chiller must be filled with coolant before the power is turned on. Operating the pump without a coolant can
damage the impeller bushings and seals.
The air bubbles should be purged from the coolant tubes. The bubbles may represent a significant lack of coolant.
A reduced volume of coolant will affect the chiller’s ability to maintain cooler temperatures.
Do NOT put chlorine, bleach, ammonia, or other corrosive chemicals into the coolant tank. The corrosive
chemicals will damage the tank linings, rust the fittings, and contaminate the laser tube.
The chiller should be equipped with a mini computer control system. The control system works independently from the
laser machine. The chiller contains the basic parts of: water pump, flow sensor, safety relay, refrigerant pump, refrigerant
cold coils, refrigerant hot coils and fins, air flow fan, power switch, power indicator, and temperature controller. The
combination of these parts ensures the operation is simple, safe, and well reactive to temperature change needs.
The operating conditions:
1.
Air Temperature: 5
℃
-35
℃
The chiller needs to push heat into the air in order to cool the fluid.
2.
Humidity:≤95% and non-condensing Condensation can damage the electronics of the controller.
3.
Temperature of coolant: 5
℃
-35
℃
. Temperatures that are too high indicate that the chiller cannot support the
demands of the system to be cooled. Temperatures that are too low could cause ice to form inside the
machine or split connectors.
4.
Either 120VAC or 220VAC power source. The chiller must be matched with the proper power source. The
wrong voltage will cause the electronic components to be destroyed. Replacing the compressor would often
be not cost worthy.
5.
Chiller should be place near the laser machine at a position that is dry, has good air flow, and the air maintains
low temperature.
Failure to abide by these warnings and operating conditions will void all warranties.
We recommend using diluted RV antifreeze or de-ionized water as coolant fluid. The RV antifreeze provides
many benefits. 1)Lubricates the pump, 2)Is designed to increase fluid flow, 3)Resists the growth of bacteria or bugs,
4)Designed for heat transfer, 5)Color is nice to see the presence of fluid, 6)Does not contain components that will
separate and deposit onto the laser tube (calcium) 7)Is more friendly to the environment.
Typical function of the chiller:
1.
Operation: When the temperature of water arrives to the temperature set up (ts), the compressor will stop pumping.
The fan may continue to blow air. As the coolant temperature goes back to the Temperature Setpoint(ts) plus the
difference in temperature(td), the compressor start working again.
2.
The protect mode for compressor: The compressor may be programmed to have a delayed start. This delay time of
compressor can be set up by the controller’s parameters. When the compressor stops pumping, it starts to count the
time for the .
3.
When the chiller machine starts, it will display the temperature controller’s firmware version number. After 6 seconds
of displaying the edition, the chiller machine will display the temperature and enter normal condition.
Rabbit Laser USA
