Cooling - Novanta vi30 User Manual

COOLING

3 Visually inspect the exterior housing of the laser to ensure that all warning labels are present.
Refer to the Laser Safety chapter for vi30/40 label types and locations.
Cooling
Air cooling
Because vi30/40 lasers are OEM products, they do not include cooling fans. Customers must provide
some type of air cooling to prevent the laser from overheating. NOVANTA recommends using two
cooling fans rated for at least 4.0 m3/min (140 CFM) for the vi30 at a static air pressure of 13.9 mm H2O
(0.52 in H2O). The cooling fans should measure 120 × 120 mm (4.7" × 4.7") and have at least 57.2 mm
(2.25") of unobstructed clearance between the rear face of the fan housing and any mounting surface or
enclosure. NOVANTA recommends 5.4 m3/min (190 CFM) for the vi40.
Water cooling
When filling your chiller, use at least 90% distilled or tap water by volume. If you must use glycol, do not
add more than 10% by volume. See the vi30/40 technical reference section in this manual for detailed
information.
Coolant temperature & flow rate
Set a chiller temperature setpoint between 18–22 °C (64–72 °F). The setpoint temperature MUST be
maintained above the dew point temperature. Operating the laser with a coolant temperature below the
dew point of the surrounding air may cause condensation to occur that will damage the laser. Cooling
flow rate 1.0 GPM <60 PSI.
Storage/shipping
When preparing the laser for storage or shipping, remember to drain cooling water from the laser. In
cold climates, any water left in the cooling system may freeze, which could damage internal
components. After draining thoroughly, use compressed shop air at no more than 200 kPa (29 PSI)—
Wear safety glasses! —to remove any residual water. When finished, cap all connectors to prevent debris
from entering the cooling system.
When shipping NOVANTA lasers to another facility, we highly recommend that you ship the unit in its
original NOVANTA shipping container. If you no longer have the original shipping box and inserts,
contact NOVANTA Customer Service about purchasing replacement packaging. Refer to Packaging
instructions in the Technical Reference section for detailed instructions on properly packaging the laser
for shipment.
Important Note: Failure to properly package the laser using NOVANTA-supplied shipping boxes
and foam/cardboard inserts as shown in the Packaging instructions may void the warranty.
Customers may incur additional repair charges for shipping damage caused by improper packaging.
PAGE | 61