Trotec TTR 400 Original Instructions Manual page 6

Functional principle TTR 400 D / TTR 500 D
Process air
The air to be dehumidified is sucked in by means of a fan.
The process air (4) flows through the desiccant wheel's
dehumidification sector (1).
In doing so, the contained moisture is withdrawn by the sorbent
(silica gel) and retained (desiccation). Due to physical processes
the temperature of the dry air (6) increases. Later the dried air
flows towards the dry air outlet.
Regeneration air
The regeneration air (5) is also sucked in with its own fan and
guided through the purging sector (3). During dehumidification
the desiccant wheel warms up as a result of the released
desiccation heat and the regeneration heat. The purging
sector (3) serves the purpose of heat recovery and for cooling
the desiccant wheel, leading to a reduced energy input and
improvement of the dehumidification performance – especially
at lower dew points. Whilst flowing through the heater
battery (7) the air is heated to approx. 100 °C to 120 °C
(depending on the intake temperature) and at the same time the
relative humidity is extremely reduced.
In passing through the regeneration sector (2), the thusly
prepared air now again absorbs the moisture retained by the
silica gel (desorption). Then the extremely humid regeneration
air (8) is discharged to the outside via the humid air outlet.
6
Device depiction
10
11
14
15
16
No. Designation
9 Carrying handle
10 Dry air outlet
11 Feet
12 Operating element
13 Connection cable
14 Air inlet grid with coarse particulate air filter
15 Humid air outlet
16 Air inlet grid with coarse particulate air filter
desiccant dehumidifier TTR 400 / TTR 400 D / TTR 500 D
9
12
13
EN