Instruction manual

LS40/60 FREEZE DRYER
Publication reference 1HZ204-1 32
pump out of the framework. Inspect and clean the vacuum pump inlet filter, gas ballast
control, oil sight glass and motor fan cover, as described in the pump instruction manual.
When refitting, ensure that all fittings are correctly reconnected to the vacuum pump.
9.7 DOOR SEALS
Routinely inspect the door seals fitted to the drying and condenser chamber.
CAUTION: Do not attempt to open the condenser door if the condenser temperature is below
0
o
C (this may damage the seal).
9.8 DRYING CHAMBER SILICONE FLUID
Check the silicone fluid reservoir sight glass. This is located on the left hand side panel of the
drying chamber. Ensure that the level is between the MIN and MAX markers.
Note: The levels should only be taken when the freeze dryer is switched off and the fluid is at
ambient temperature.
9.9 REFRIGERATION HEAT EXCHANGERS
Regularly check the two heat exchangers fitted at the rear of the freeze dryer. Ensure that
they are free from the ingress of dust and other foreign objects.