Quantel Ultra Big Sky Laser Series, User Manual, Page: 74 / 98

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| Contents | Maintenance
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Ultra
Version M 22-April-2012
3.0 Draining a Rack ICE450
CAUTION: Remove ALL coolant. Coolant trapped within the
Power Supply may freeze and cause irreversible damage to
the internal components.
Note: It is useful to have a second person assist in draining the
ICE450. You will need a suitable container to hold the drained
liquid.
Use the following procedure to drain the system:
1. Turn the Key Switch ON.
2. Use the Remote Box Pump menu to turn the Pump OFF.
3. Disconnect the coolant lines and I/O cables from the back of the
Rack ICE450 and from the Laser Head.
4. Connect the supplied Coolant Loop between the blue and red
fittings on the Rack ICE450 rear panel.
5. Connect the empty Fill/Drain bottle. The tube from the bottom of
the bottle connects to the Fill/Drain port. The tube from the top of
the bottle connects to the Vent port.
6. Hold the bottle lower than the Rack ICE450 reservoir. Loosen the
cap on the Fill/Drain bottle to allow the coolant to drain into the
bottle.
Note: Do not raise the bottle above the reservoir or the coolant will
flow back into the reservoir.
7. Use the Remote Box System menu and change the Pump to Drain
mode (see
Pump on page 26
).
Note: The pump will run for 30 seconds and turn OFF automatically.
8. After the pump stops automatically, fully drain the reservoir into the
bottle by tilting the Rack ICE450 forward toward the front panel.
9. Turn the Key Switch to OFF.
10. Disconnect the Fill/Drain bottle, tubes, and the Coolant Loop.
11. Replace the cap on the Fill/Drain bottle.
12. To prepare the system for shipment, wipe all residual coolant
droplets from all coolant ports prior to placing the ICE450 in a
plastic bag. This helps prevent moisture condensing on sensitive
parts during shipment.
13. Gravity-drain the Laser Head by tilting it so that coolant flows out
from the lower drain port and into your container.
14. Gently blow dry nitrogen through the blue coolant connector to
empty any remaining coolant.
15. Place the blue plastic covers that originally shipped with the
system over the ports on the Laser Head to prepare it for
shipping or storage.
Note:
The trace amount of coolant remaining in the system after
following this procedure is not a concern.