Operating instructions

UP/BP/ULP/SLP 400 – 800 35
13 Loading
Units described in this instruction manual must not be used for
drying or heating substances giving off vapours or gases which
are inflammable when mixed with air.
The units described here must never be operated in areas with an
explosive atmosphere.
For correct operation and uniform temperature distribution it is essential to maintain free
air circulation throughout the oven. The contents of the oven should therefore not be
packed tightly, furthermore they must not be placed close to any of the heating ribs on
the sides, top or bottom of the oven (note the loading diagrams on the ovens).
When putting the shelves into the unit please ensure that there is a small air gap
between the rear of the working chamber and the shelf in order to permit better air
circulation.
For the maximum number of shelves and the permissible load see table below.
If the load is packed tightly and the ventilation slide is fully open, the oven may take a
very long time to reach the set temperature
Warning !
When the oven is started up for the first time it should be run
under supervision until steady conditions are reached.
The following schedule gives recommended loading levels which will ensure largely
uniform temperature distribution within the working chamber.
Model Max. number of
shelves
Load each shelf max.
kg
Total load
kg
400 4 30 90
500 5 30 60
600 7 30 80
700 8 30 100
800 10 30 160