Water Chiller: Difference between revisions

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{{MachineInfoBox
{{MachineInfoBox
|machine name=CW4000
|machine name=CW4000
|image=
|german=Wasserkühlung
|image=Water chiller CW4000.JPG
|synonyms=DE: Wasserkühlung
|synonyms=DE: Wasserkühlung
|type=[[Laser Cutter|laser cutter]] periphery
|type=[[Laser Cutter|laser cutter]] periphery
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We have a "CW4000" water chiller that is dedicated to the [[Laser Cutter|laser cutter]].
We have a "CW4000" water chiller that is dedicated to the [[Laser Cutter|laser cutter]].


'''Never fire up the laser without proper cooling!'''
'''Never fire up the laser without proper cooling!''' In fact, it will not even let you activate the CO<sub>2</sub> 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 ==
== 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...
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 [https://hpclaser.co.uk/p/ls-coolflow-antifreeze-5litres/ HPC-approved antifreeze] (NOT the stuff for cars, apparently it can break the tubing and seals!). [http://bdicooling.com/dtx-high-efficiency-non-toxic-glycol-antifreeze This solution from BDI Cooling] might also be worth a look because it sounds like it might be the same thing (ethylene glycol plus "DeTox").


1st fill: just distilled water, 2020-3-12
The antifreeze would also be useful due to its additional sterilizing agents: in regular distilled water, we are seeing lots of algae/fungi growth and have to replace it every few weeks...there are even stories online where the gunk caused serious blockage in the glass tubes that are difficult to clean!
 
1st fill: just distilled water, 2020-3-12 ''(did not keep track after that)''


== Specs ==
== Specs ==
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* refrigerant: R134a
* refrigerant: R134a
* tubing: Rp 1/2 (DN15)
* 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?
[[Category:Laser Cutting]]

Revision as of 21:32, 28 April 2022

MachineInfoBox

CW4000

Water chiller CW4000.JPG
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 HPC-approved antifreeze (NOT the stuff for cars, apparently it can break the tubing and seals!). This solution from BDI Cooling might also be worth a look because it sounds like it might be the same thing (ethylene glycol plus "DeTox").

The antifreeze would also be useful due to its additional sterilizing agents: in regular distilled water, we are seeing lots of algae/fungi growth and have to replace it every few weeks...there are even stories online where the gunk caused serious blockage in the glass tubes that are difficult to clean!

1st fill: just distilled water, 2020-3-12 (did not keep track after that)

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?