Water Chiller

MachineInfoBox CW4000
Synonyms:	DE: Wasserkühlung
Type:	[[laser cutter periphery]]
Location:	eRoom
Access Requirements:	Laser Cutter Introduction<ul><li>The part "|laser cutter" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The part "periphery" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The part "]]" of the query was not understood.Results might not be as expected.</li></ul>
Tutors:	NitramLegov Pakue Johannes Luzian Keno Utis Sebastian Kalunho Björn<ul><li>The part "|laser cutter" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The part "periphery" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The part "]]" of the query was not understood.Results might not be as expected.</li></ul>

[[Has caption::laser cutter periphery| ]] [[MachineType::laser cutter periphery| ]]

We have a "CW4000" water chiller that is dedicated to the laser cutter.

Never fire up the laser without proper cooling! In fact, it will not even let you activate the CO₂ tube if the water is flowing in the wrong direction ("outlet" of the chiller has to go into "inlet" of the laser cutter and vice versa).

Filling

The unit is filled from the top where you can remove the clear plastic lid. If the temperature may drop below 5°C the laser cutter's manual advises the use of company-approved antifreeze (NOT the stuff for cars, apparently it can break the tubing and seals!). Pending first experiences, we may also need to think about an additional sterilizing agent in case algae or fungi start feeling at home in the water...

1st fill: just distilled water, 2020-3-12

Specs

From the HPC product page:

• tank volume: 3.2 L
• refrigerant: R134a
• tubing: Rp 1/2 (DN15)

Error Messages

• E02: temperature error
  • room/water below 5 or above 25°C?
• E05: flow restriction
  • bends in the tubing?
  • water level too low?