Labconco FreeZone Stoppering Tray Dryers 79480 Series - Manual (Page 44)

Chapter 7: Troubleshooting
Product Service 1-800-522-7658 40
Stoppering Tray Dryer
 Inspect the door and door gasket.
 Inspect the coupling between the freeze dryer and the Stoppering Tray Dryer.
 Remove the top left hand cover panel and inspect the valve and hose
connections to the chamber.
 Remove the top right hand cover and inspect the electrical pass through and
gasket on the top of the chamber.
Refrigeration Module Operation
Under a no-load condition and depending on the ambient temperature, the
Stoppering Tray Dryer refrigeration system can achieve a system temperature of –
40°C or lower within 4 hours when the vacuum pump is running.
If any repairs are required on the refrigeration module, contact your local
laboratory supply dealer. If your laboratory supply dealer is unable to provide
assistance, please call Labconco. Repairs should only be undertaken by a
competent refrigeration technician or through an authorized Labconco service
agency.
Access to Mechanical Components
(1)
To gain access to the refrigeration system, pump, tank, and the controller
and control panel components, it is necessary to remove the cover on the
left side.
(2) Remove the stainless steel front panel and control panel. Disconnect the
wires to the power switch. Remove the left cover.
(3) Additional access is available by removing the remaining screws, which
hold the rear panel in place, and lifting it off the unit.