Labconco FreeZone Triad Freeze Dry System 74000 Series - Manual (Page 44)

Chapter 7: Troubleshooting
Product Service 816-333-8811 or 1-800-522-7658 40
(1) Disconnect power cord from supply outlet.
(2) Make sure the Power Switch is in the OFF position.
(3) Remove the rear cover to expose the marked back foam insulation.
Cut through the foam along the marked lines and remove center
cutout.
(4) Remove the insulation and both caps from the fluid circulation valve.
(5) Attach a flexible tube to the exposed port (service port). The port is
3/8" x 45° male flare.
(6) Remove the fluid reservoir cap and place the opposite end of the
tubing into the fluid reservoir.
(7) Fill the reservoir slowly allowing the fluid to drain through the
system. When the system appears full, prepare to start the circulation
pump.
(8)
Open the fluid circulation valve by completely “down-seating” (turn
top valve stem completely clockwise) to direct fluid to by-pass
through tubing to fluid reservoir.
(9) Connect the unit to the proper power source. Activate the pump by
moving the Power Switch to the ON position, while holding down the
 button. To start the diagnostic display, press the  button. The
fluid system will circulate with the fluid going through the add-on
tubing, purging itself of air. Add fluid when needed to keep fluid in
the reservoir. After the fluid stream is established, tilt the entire
freeze dry system up and down. Observe the fluid stream and repeat
the tilt procedure if it is not free of bubbles. Fill reservoir to level
indicated by the label.
(10)
Turn power switch to the OFF position and disconnect power cord
from supply outlet.
(11)
Close “up-seat” fluid circulation valve (turn valve stem completely
counter-clockwise, closing the fluid/tubing by-pass).
(12)
Remove the tubing. Replace the caps on the valve and replace
insulation and covers. Replace the cap on the tank.
(13)
Replace insulation and seal air tight. Replace rear cover.