Principle Of Operation; Automatic Defrosting - Trotec TTK 100 S Bedienungsanleitung

Principle of operation

The apparatus works in accordance with the condensation prin-
ciple (see diagram A, schematic representation of the principle
of operation). The ventilator sucks the humid ambient air into the
rear side of the apparatus via the air filter, the evaporator and
the condenser which lies behind it. Heat is extracted from the
ambient air at the cold evaporator.
The ambient air is cooled to below the dew point and the water
vapour contained in the air condenses as condensate or frost
on the evaporator fins.
The dehumidified, cooled air is warmed again at the condenser
(heat exchanger) and is blown out at a temperature of approxi-
mately 5 °C above room temperature.
This treated, dryer air is then mixed with the ambient air. Due
to the continuous room air circulation through the apparatus,
the air humidity in the place of use is reduced continually to the
desired relative humidity.
Dependent on the air temperature and the relative air humidity,
the condensed water drops continually, or only during the peri-
odic defrosting phases, into the condensate pan and then into the
condensate container located below via the integrated outlet.
A float valve, disposed in the condensate container, interrupts
the dehumidification operation via a microswitch when the con-
tainer is full.
When the maximum fill state of the condensate container
is reached, the tank warning lamp on the operating console
lights and the apparatus switches off. The tank warning lamp
extinguishes when the emptied condensate container is rein-
serted. The apparatus then restarts after a delay time of ap-
proximately 2 minutes.
In the case of unattended continuous operation with external
condensate connection, the condensate is continually drawn off
via a hose connection (see the section "Continuous operation
with external condensate connection").
Set-up
For optimised, economical and safe operation of the apparatus,
you should in all cases observe the following instructions (see
also diagram B).
• The apparatus is to be placed upright and stable to
ensure unimpeded flow of the condensate into the
condensate container.
• If possible, place the apparatus in the centre of the
room to guarantee optimum air circulation.
• In all cases, the apparatus is to be kept at least
50 cm from walls.
• Ensure that air can be freely sucked into the
intake at the rear of the apparatus and blown out
of the upper air baffle flap.
• Do not operate the apparatus in the vicinity of
heaters or other sources of heat.
• Ensure that the room that is to be dried or dehumidified
is closed off from the surrounding atmosphere.
• Ensure that doors and windows are closed,
and avoid frequently entering or leaving the room.
• If the apparatus is used in a dusty environment, ensure
that the applicable care & maintenance measures are
followed. See the section "Care and maintenance".
Important information on electrical connection:
• In accordance with DIN VDE 0100, Part 704, the
apparatus must be connected to supply points with
earth leakage protection.
• If the apparatus is used in wet areas such as
laundries, bathrooms or similar, it must be protected
by an inbuilt earth leakage protection switch that
conforms with regulations.
Operation
The air baffle flap, the operating console and the condensate
container are important operating elements. The rotary control
switch and the operating warning lamp, the tank warning lamp
and the defrosting warning lamp are disposed on the operating
console. A graphical representation of the relevant operating el-
ements is shown in diagram C.
Commissioning
Before each commission, or dependent on local requirements,
the intake and outlet openings must be checked
for foreign bodies and the intake filter must be checked for
fouling. Blocked or dirty grilles and filters should be cleaned
immediately, see the section "Care & maintenance".
Important instructions before commissioning
• Cable extensions must have an adequate cross-section.
• Cable extensions must be either completely
unrolled from the drum or completely rolled!
• The condensate container must be inserted correctly.
Otherwise the apparatus will not work!
Economical dehumidification is no longer guaran-
teed with this class of apparatus at room tempera-
tures of less than 8 °C and/or relative air humidity of
less than 40 %.
Our product range contains special dehumidifiers for use
under such climatic conditions. Our staff will be pleased to
discuss your requirements with you.
Commissioning of the apparatus
1. Insert the apparatus' plug into a correctly-fused
mains socket (230 V/50 Hz/10 A).
2. Open the air baffle flap on the top of the apparatus.
3. Check that the tank warning lamp is not lit
(see diagram C.6).
4. For dehumidification operation, turn the rotary
control switch clockwise to the desired operation
setting (see diagram D.5).
5. Check that the operating warning lamp
illuminates (see diagram C.7).
The apparatus is now in operation and is working in accord -
ance with the desired dehumidification setting. To switch the
apparatus off again, simply turn the rotary control switch back
to the "Off" position (see diagram D.1).
Information on operating the apparatus
• Once switched on, the apparatus operates fully
automatically until it is switched off via the float in
the filled condensate container.
• If the power supply is interrupted during operation,
the apparatus does not automatically switch itself
on again when the power supply is restored.
• If the apparatus is to be used in continuous operation
with an external condensate connection, please read
the section "Continuous operation with external
condensate connection".
• If the apparatus is switched off manually or via the float,
the compressor will only start again after a waiting time
of approximately 5 minutes. This safety measure prevents
the compressor from being overloaded.
• The ventilator runs continually until the apparatus is
switched off so that the sensor built into the apparatus
can always correctly determine the air humidity within
the room.
Operating manual dehumidifier TTK 100 S
Information on first use and the different
types of operation:
When using your dehumidifier for the first time, turn the
rotary control switch clockwise all the way to "Permanent oper-
ation" (diagram D.2). Allow the apparatus to operate in this mode
for a while. At the start, the dehumidifier will absorb large quan-
tities of humidity and will continue to do so until the relative hu-
midity is reduced. After this, the apparatus will absorb smaller
quantities of humidity. This does not mean that the dehumidifi-
er is not working correctly, but rather that the humidity in the air
has been reduced.
As soon as you notice the pleasant feeling of dryer air and
as soon as the unpleasant odour of dampness has disap-
peared, you can switch the apparatus to two different operating
modes, hygrostat control or permanent operation:
With the stepless hygrostat control, you can set the rotary con-
trol switch to a position between "Off" and "Permanent oper-
ation", depending on your requirements (diagram D.3). To
automatically maintain the current room humidity, slowly turn
the rotary control switch to the left and leave it in the position
where the compressor switches off. The inbuilt hygrostat stores
the desired relative room air humidity and automatically
switches the apparatus on/off if humidity exceeds / drops below
this level, effectively maintaining the specified humidity level.
In permanent operation, apparatus continually dehu midifies
the air, independent of the humidity content in the air. For this
operating mode, leave the rotary control switch turned all the
way to the right in "Permanent operation" (diagram D.2).
Information on dehumidification performance
Dehumidification performance is exclusively dependent on
environmental conditions, room temperature, relative air
humidity and observation of the instructions in the section
"Set-up".
Maximum dehumidification performance is attained with the
air baffle flap completely opened.
The higher the room temperature and the relative humidity,
the higher the dehumidification performance.
For use in living quarters, a relative air humidity of approxi-
mately 50 to 60 % is sufficient, whilst this should not exceed
50 % in warehouses, archives, etc.
Setting the outlet direction
The dehumidified ambient air is blown out from the top of the
apparatus. The swivelable air baffle flap serves to adjust the out-
let direction (diagram C.1).
1. To open, press the rear side of the air baffle flap
(see diagram C.8). The front side folds upwards,
allowing you to set the outlet direction as required.
2. If possible, produce an upwardly-directed air stream
by completely opening the flap.
3. To guarantee optimum operation of the apparatus,
ensure that the air outlet is not restricted.
4. Ensure that sensitive objects such as e.g. house
plants are not in the direct path of the outlet air stream.

Automatic defrosting

The humidity contained in the ambient air condenses on
cool ing and, dependent on the air temperature and the
relative humidity, coats the evaporator fins with frost or ice.
This layer of frost or ice is automatically defrosted by the
apparatus.
When required, the automatic hot gas defrosting system built in-
to the apparatus starts the defrosting cycle. The dehumidi -
fication operation is halted briefly during the defrosting phase
(the defrosting warning lamp is lit, see diagram C.5).
B - 2