air entering the dryer is firstly dehumidified and then reheated simply
by the operation ofthe heat pump cycle. The cold evaporator condenses
the warm, humid air, recovers the heat and channels it to the condensator
thanks to the compressor which also offers its heat.
It is a "soft" drying process, particularly suited for
hard wood and light essences since it respects their characteristics.
If the right dimension is chosen and it is linked to supplementary
ventilation it can also be used to dry resinous essences.
The refrigerator used belongs to the latest generation and does
not contain chlorine in keeping with the "Directives against
Air Pollution". The R134 is particularly suited to this end
and it allows the dryer to be normally used in kiln up to 60°C.
The construction characteristics of the machines also eliminate
all of the problems linked to the corrosion of the tannin and other
acids contained in the wood.
The frame and pipes are made of aluminium and stainless steel.
The fans have been treated with epoxy varnishes and the same is
true ofthe heat exchanger.
It is also possible to supply stainless steel and aluminium evaporators