heating in operating modes 3b, 4b or
5b. These operating modes give you
continual air circulation and do not
produce large temperature gradients
between upper and lower layers of air.
The same is also true for greenhouses
with very high humidity. The continual
circulation of air prevents the occur-
rence of mould and fungi.
If you have robust plants and mere-
ly wish to prevent frost you can use
operating modes 3a, 4a or 5a. Please
consult a gardener if you have ques-
tions in this regard.
Step 2: Select the desired temperature
range on the thermostat adjustment
wheel. Refer to the example on page
8 to see which position on the ther-
mostat corresponds to the desired
temperature and then set it accord-
ingly. Now leave the heating to oper-
ate for several hours and monitor the
room temperature with the help of a
thermometer (MIN-MAX thermometer
recommended). Then correct the set-
ting slightly upwards or downwards if
necessary if the desired temperature
is not maintained. This setting pro-
cess only needs to be carried out
once during initial operation. The
heating system will keep the tempera-
ture constant once the correct setting
has been discovered.
Note: It is unfortunately not possible
to print the temperature scale on the
adjustment wheel of the thermometer
as it reacts differently depending on
size, insulation, stocking and location
of each greenhouse.
Recommendation:
If you would like to keep valuable
plants in your greenhouse over the
winter then we recommend installing
a second heat source that is activated
if this heating fails (e.g. during a pow-
er cut). This protects your plants from
freezing.
Summer operation:
In the summer months you can use
the air circulation mode to achieve
substantial cooling of the greenhouse
temperature. Select operating mode
2b for this purpose and open the door
or roof windows in your greenhouse.
The position of the thermostat adjust-
ment wheel is irrelevant in this case.
The greenhouse air that is heated by
the sun is continually circulated in
circulation mode and is transported
outside. This measure also regulates
humidity in the greenhouse and pro-
motes pollination of your plants.
Note: Never use operating mode 2a
for summer operation. As the air cir-
culation is regulated by the thermo-
stat in this mode it would switch off
the fan after a short period of strong
sun exposure. This would mean that
the air circulation and the associated
cooling would no longer be assured.
10