Starizona Cool Edge User manual

The Cool Edge allows for rapid thermal stabilization of the air and optics inside your Celestron Fastar-
compatible telescope. By moving filtered air through the optical tube, distorting tube currents and heat
spi es are eliminated.
Included Items
•Cool Edge SCT Cooler
•AC or DC Adapter (user selected)
Above: Cool Edge for 14” Telescope
No tools are necessary for the installation and use of the Cool Edge

Position the Telescope
Begin by pointing the telescope tube upward at about a 45-degree angle. This allows you to safely
remove the secondary mirror without the chance of it falling out.
Removing the Secondary Mirror
All Celestron Fastar-compatible telescopes are equipped with removable secondary mirror assemblies,
allowing the easy removal of the secondary mirror for use with a Hyperstar lens or the Cool Edge.
Simply rotate the outer ring around the secondary assembly countercloc wise to unthread it from the
telescope. The secondary mirror can now be lifted out of the telescope.
Placing the Mirror in the Cool Edge
Note the position of the notch in the top threaded ring of the Cool Edge and the matching set screw in
the side of the secondary mirror housing. Carefully set the mirror into the Cool Edge with the set screw
in the notch.

Thread the retaining ring from the telescope onto the Cool Edge to hold the mirror in place. Do not
over-tighten this ring as temperature changes can ma e it difficult to remove.
Attaching the Cool Edge to the Telescope
Thread the entire Cool Edge assembly onto the front of the telescope. Again, do not over-tighten the
cooler to avoid it being difficult to remove later.
Ventilating the Telescope
The new Edge HD telescopes include rear cell vents to allow air to flow through the telescope tube.
Standard (non-Edge HD) telescopes will require the bac of the telescope to be open to allow air flow.
Simply remove the diagonal from the visual bac of the telescope to let air move through the telescope
tube. Removing the diagonal is not necessary with an Edge HD telescope.

Po ering Up the Cool Edge
There is no power switch on the Cool Edge—simply plug it in using the included power supply and it
will begin running. We recommend letting the cooler run for at least 10 minutes to stabilize the
telescope.
Replacing the Secondary Mirror
Remove the Cool Edge from the telescope. Unthread the retaining ring from the Cool Edge and lift out
the secondary mirror. There is a notch in the secondary holder on the front of the telescope to accept
the set screw in the side of the secondary housing. This retains the initial collimation of your telescope,
so there is no need to recollimate after using the Cool Edge. Thread the retaining ring bac onto the
telescope and you are ready to observe!
Starizona
5757 N. Oracle Rd.
Tucson, AZ 85704
520-292-5010
www.stari ona.com