Memmert HPP 108/749 Constant climate chamber (Generation 2003) - Manual (Page 56)

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Maintenance and Servicing
8. Maintenance and servicing
Warning!
Disconnect the mains plug before any cleaning or maintenance
work.
8.1 Cleaning
Regular cleaning of the easy to clean chamber interior prevents build up of material remains,
which over time could impair the appearance and functionality of the stainless steel chamber.
The metal surfaces of the chamber can be cleaned with normal stainless steel cleaning agents.
Make sure that no rusty objects come into contact with the working chamber or with the
stainless steel housing. Rust deposits lead to an infection of the stainless steel.
If rust spots should appear on the surface of the working chamber, due to impurities, immedi-
ately clean and polish the affected area.
Do not clean the operating panel, the plastic input module and other plastic parts of the
chamber with caustic or solvent-based cleaning agents.
8.1.1 Cleaning the Peltier cooling modules
In order to guarantee the perfect function and long
lifetime of your Peltier cooling modules, it is
absolutely essential that you remove dust deposits
from the heat sink on the rear of the appliance (with
a vacuum cleaner, paintbrush or bottle brush,
depending on the amount).
To make cleaning easier, the cover can be removed
after the screws have been loosened ( Fig. 35 ).
8.2 Regular maintenance
Every three months if in permanent operation
► Grease the moving parts of the doors (hinges
and lock) with thin silicon grease and check that
the hinge screws are not loose.
► Check that door seals fit tightly, adjust door if
necessary (see chapter 8.3 ).
Annually:
► Grease the moving parts of the doors (hinges and lock) with thin silicon grease and check
that the hinge screws are not loose.
► Check that door seals fit tightly, adjust door if necessary (see chapter 8.3 ).
Fig. 35 Cover of the Peltier
cooling modules on the rear of the
appliance