RadonTec AlphaAir Freshbox 25 User manual
AlphaAir Freshbox 25
with humidity sensor
Manual
January 2021
RadonTec GmbH
Hauptstraße 5
89426 Wittislingen - Germany
Tel: (+49) 9076 - 919 98 35
Website: radontec.de
Shop: radonshop.com
Version: 01
3
Manual –AlphaAir Freshbox 25 Basic
Scope of Contents
1 Introduction......................................................................6
2 Safety note .......................................................................8
2.1 Risk of electric shock ................................................8
2.2 Danger of falling icicles.............................................9
2.3 Danger of flue gases.................................................9
2.4 Risk of injury...........................................................10
2.5 Regional law ...........................................................10
3 Type approval.................................................................10
4 Intended use...................................................................11
5 Scope of delivery ............................................................12
6 Names of the parts.........................................................13
7 Bedienung und Programmierung...................................15
7.1 Opening the device.................................................15
7.2 Triggering the unit self-test....................................15
7.3 Control panel..........................................................17
7.4 Basic functions........................................................17
7.5 Special functions.....................................................22
7.6 Sensor slots.............................................................28
8 Mounting the device ......................................................29
8.1 Selecting the correct mounting location................29
8.2 Recommended tools e.g. for brick walls ................31
8.3 Installation without a suitable outer wall ..............31
8.4 Marking the drill holes............................................33
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Manual –AlphaAir Freshbox 25 Basic
8.5 Drilling the fresh air and exhaust air holes.............34
8.6 Inserting the pipes into the wall.............................36
8.7 Foaming in the tubes..............................................37
8.8 Power connection...................................................38
8.9 Sealing the pipe transition......................................41
8.10 Fastening the outer panels.....................................42
9 Function of the automated frost protection..................42
10 Maintenance and cleaning .........................................44
10.1 Filter material.........................................................44
10.2 Filter change...........................................................45
10.3 Regular cleaning .....................................................45
10.4 Cleaning the heat exchanger..................................46
11 Troubleshooting .........................................................48
12 Things to know and tips & tricks ................................50
12.1 Basics ......................................................................50
12.2 Humid rooms..........................................................50
12.3 Bed room................................................................51
12.4 Energy saving..........................................................52
12.5 Comfort ..................................................................53
12.6 Condensation and icicles........................................53
13 Extensions...................................................................54
14 Software update.........................................................55
15 Disposal ......................................................................55
16 Technical Data ............................................................56
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Manual –AlphaAir Freshbox 25 Basic
17 Product data sheet .....................................................57
18 Energy efficiency label................................................59
19 Quick guide.................................................................60
20 Two-year warranty.....................................................63
21 Declaration of Conformitg..........................................64
22 Support and Contact ..................................................65
22.1 Troubleshooting/FAQ.............................................65
22.2 Contact Us ..............................................................65
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Manual –AlphaAir Freshbox 25 Basic
1 Introduction
Both in new buildings and in energy-related renovation
measures, attention is now being paid to a tight building
envelope. The elimination of drafts through cracks and gaps
not only leads to corresponding energy savings, but also
increases comfort to a considerable extent.
Particularly in the renovation sector, it is easily overlooked that
airtight windows and doors go hand in hand with special
requirements in terms of ventilation behavior. Insufficient air
exchange leads to an enrichment of the room air with
pollutants (sick building syndrome) and, above all, moisture.
The latter forms the basis for damp walls and mold growth.
Even if one can keep the apartment mold-free by frequent
window ventilation, this means in return only that the warm air
originally hoped to be saved is nevertheless ventilated out
through the window again. The cold fresh air that is let in has
to be heated up again by the heating system each time, which
is only reflected in the heating bill.
The remedy is to ventilate by means of controlled living space
ventilation with integrated heat recovery. Both incoming and
outgoing air flows through the heat exchanger it contains,
while being separated from each other by fine louvers. The
heat is transferred from the warm to the cold air mass with a
heat recovery rate of up to 90%.
In a concrete practical example, fresh air with an outside
temperature of 0°C flows into the unit. This is heated with the
energy of the extracted, 20°C warm room air and flows
preheated with
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Manual –AlphaAir Freshbox 25 Basic
for example 15°C (up to 18°C are possible) into the room. The
difference between 0°C (window ventilation) and the 15°C
(with WRG) represents an immediately visible saving.
Since the dew point is also undershot when the warm room air
cools in winter, air humidity can condense in the heat
exchanger and be discharged to the outside. This represents a
decisive step towards freedom from mold. In addition, the
infinitely variable output regulation allows individual
adjustment to the room humidity emissions. In a child's room,
the unit is operated with much less power than in a kitchen
where it is currently steaming.
Heat recovery also works in summer! Since the heat exchanger
always acts like a kind of "temperature barrier", even the great
summer heat stays outside when you ventilate. In the future,
leave your shutters closed during the day (no solar radiation) -
from now on, your new ventilation unit will take care of the
ventilation and ensure that not so much heat enters the room
during ventilation.
Allergy sufferers benefit from the optionally available pollen
filters and even a fitting with activated carbon filters is possible
(e.g. for odor and exhaust gas pollution). Visit our RadonShop.
With the humidity sensor, you enable the unit to operate fully
automatically, intelligently adjusting the ventilation output to
the ambient conditions.
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Manual –AlphaAir Freshbox 25 Basic
2 Safety note
For safe handling, read this user manual carefully
and completely before mounting and operating the
device.
Keep this manual in a safe place.
2.1 Risk of electric shock
The plug-in power supply included in the standard scope of
delivery may only be plugged into a suitable socket if it is
undamaged and dry.
An in-wall power supply unit available as an
accessory may only be connected to the mains
voltage by a qualified electrician.
Never expose the power supply unit to moisture or
mechanical stress.
Never operate the device without the power
supply unit! Connecting the device directly to a
power outlet will inevitably destroy thedevice! No
liability is accepted for damage caused by
incorrect connection or improper handling.
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Manual –AlphaAir Freshbox 25 Basic
2.2 Danger of falling icicles
This device is often used to combat mold and damp walls.
Please note that especially in the first winter (when the walls
are still damp) there may be an increased formation of icicles
on the outer drip lip. Since the formation of icicles can never
be ruled out in future operation, we recommend installation in
a place where there is no risk of icicles falling down (e.g. under
no circumstances in the area above entrance doors).
Otherwise, the icicles must be removed in good time.
2.3 Danger of flue gases
In rooms with a fireplace, it must be ensured that it operates
independently of the room air.
In case of doubt, your chimney sweep will help you with the
assessment and may require the use of a safety device. You
can find a suitable flue gas thermostat for this purpose in our
RadonShop. Even if this device works pressure-neutral in
normal operation, the legislator still prescribes this in case of
a malfunction.
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Manual –AlphaAir Freshbox 25 Basic
2.4 Risk of injury
Ensure that the working area is properly secured before
mounting the device. Do not carry out any work that could
cause injury to persons or objects, e.g. by falling tools or
working on wobbly ladders.
2.5 Regional law
Different countries have different legal regulations. Please
comply with the regulations valid for your country, even if they
are not explicitly mentioned in these instructions.
3 Type approval
A DIBt approval for this ventilation system is only in
preparation. Please note that e.g. KfW usually requires an
approval number in order to release subsidies. However, in
times of empty state coffers, the subsidies available are often
small anyway (e.g. low-interest loans for financing), so it is
often not advisable to insist on a subsidy in view of the effective
energy savings achieved by the device. However, if in doubt,
please ask whether this approval is required for your building
project.
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