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Gewächshausheizung / Greenhouse Heater PHX 2.8 /PHX 2.8/GB
Aircirculation Heater Phoenix 2.8
Note: If you have sensitive plants in your greenhouse over the winter (e.g. cacti) that
cannot tolerate fluctuating temperatures then we recommend 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 occurrence of mould and fungi.
If you have robust plants and merely wish to prevent frost you can use operating modes
3a, 4a or 5a. Please consult a gardener if you have questions 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 thermostat corresponds to the desired
temperature and then set it accordingly. Now leave the heating to operate for several
hours and monitor the room temperature with the help of a thermometer (MIN-MAX
thermometer recommended). Then correct the setting slightly upwards or downwards if
necessary if the desired temperature is not maintained.
This setting process only needs to be carried out once during initial operation. The
heating system will keep the temperature 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 power 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 adjustment 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 promotes pollination
of your plants.
Note: Never use operating mode 2a for summer operation. As the air circulation is regulated by the
thermostat 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.
Safety feature
Temperature-controlled switch-off: The apparatus will automatically switch off temporarily if it
should overheat. To restart, switch off the heater for 5 to 10 minutes to cool down. Another reason for
automatic switch-off may be blockages in the air inlet or exhaust apertures. In this case, please
remove the obstructing objects.
It may, however, also be an indication that the fan has failed. In this case, switch off the heating
apparatus, unplug it and call on an authorised technician for repairs.
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