RadonTec AlphaBlower EX 100 User manual

AlphaBlower EX
100 / 125
Manual
February 2021

RadonTec GmbH
Hauptstraße 5
89426 Wittislingen - Germany
Tel: (+49) 9076 - 919 98 35
E-Mail: [email protected]
Website: radontec.de
Shop: radonshop.com
Version: 01

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Manual –AlphaBlower EX 100/ 125
Scope of Content
1 Introduction......................................................................5
2 Technical Data ..................................................................9
3 Name of the parts...........................................................11
4 Scope of Delivery............................................................11
5 Product features.............................................................12
6 Dimensions.....................................................................13
7 Intended Use ..................................................................15
7.1 Permitted operation...............................................15
7.2 Non-permitted operation.......................................16
8 Ambient conditions ........................................................17
9 Safety instructions..........................................................17
10 Assembly and electrical connection...........................19
10.1 Fan installation .......................................................20
10.2 Electrical connection ..............................................23
10.3 Operation with speed controller............................25
10.4 Operation with transformer...................................26
10.5 Commissioning .......................................................26
11 Maintenance...............................................................27
12 Troubleshooting .........................................................28
13 Spare parts..................................................................29
14 Transport and storage................................................30
15 Disassembly and disposal...........................................30

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Manual –AlphaBlower EX 100/ 125
16 Circuit diagrams..........................................................32
17 Two-year warranty .....................................................34
18 Unterstützung und Kontakt........................................35
19 Support and Contact ..................................................35
19.1 Troubleshooting/FAQ.............................................35
19.2 Contact Us ..............................................................35

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Manual –AlphaBlower EX 100/ 125
1 Introduction
The AlphaBlowerEX was developed for the underfloor
extraction of radon gas. With a drainage underneath the
foundation, radon-containing soil air is extracted over a wide
area and conducted outside by negative pressure. With a so-
called radon well in or near the house, the radon-containing
soil air is extracted selectively and thus kept away from the
walls of the house that are in contact with the soil. This
prevents the radon from entering the building.
The placement of the AlphaBlower EX outside the building
can be freely chosen.
The AlphaBlower EX is suitable for permanent outdoor use
(IP X4 - protection against splashing water from all sides and
a temperature range of -25 °C to +50°C ).
The built-in radial motor is extremely robust and designed
for a long service life.

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Manual –AlphaBlower EX 100/ 125
Application example 1: Point radon extraction with
discharge at floor level.

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Manual –AlphaBlower EX 100/ 125
Application example 2: Point radon extraction under the
floor slab with discharge above the roof.

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Manual –AlphaBlower EX 100/ 125
Application example 3: Extraction of radon soil air via an
external radon well.

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Manual –AlphaBlower EX 100/ 125
2 Technical Data
Impeller type
radial
Speed controllable
yes
Reversibility
- –
Energy efficiency class
C
Voltage type
Alternating current
Rated voltage
230 V
Mains frequency
50 Hz
Protection class
IP X4
Mains cable
3 x 1.5 mm²
Installation location
Outdoor area
Installation position
vertical
Material
Sheet steel, galvanised
Fluid temperature at IMax
-20 °C to 70 °C
Sound pressure level
52 dB(A) (distance 3 m,
free field conditions)

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Manual –AlphaBlower EX 100/ 125
The AlphaBlower EX radon aspirator is available in four
different versions, each of which differs in the pipe diameter
and the resulting performance and air volumes.
EX 100
EX 125
Nominal width
100 mm
125 mm
Nominal power
50 W
49 W
IMax
0,22 A
0,22 A
Delivery volume
300 m³/h
325 m³/h
Weight
4,5 kg
4,4 kg

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Manual –AlphaBlower EX 100/ 125
3 Name of the parts
1 Upper part of housing
7 Cable grommet
2 Protective grille
8 Operating capacitor
3 Terminal box cover
9 Impeller / motor
4 Terminal box
10 Roof socket
5 Cable bushing
T Type plate
6 Terminal strip
4 Scope of Delivery
● AlphaBlower EX radon aspirator is supplied with square
roof base. The roof base can be removed for direct pipe
mounting.
● Accessory bag in terminal box: conduit grommet and
strain relief with 2 fastening screws.
● Assembly and operating instructions

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Manual –AlphaBlower EX 100/ 125
5 Product features
•Units for radon extraction, horizontal discharge
•Speed controllable
•High pressure capacity and delivery volume
•Unit is switched on or off with a switch to be
provided by the customer
•Radial impeller with backward curved blades
•AC version, with capacitor motor (operating
capacitor ready for connection in terminal box).
Thermal overload protection
The fan motor is thermally protected (temperature
sensor in the motor winding). The overload
protection automatically switches off the fan in case
of overheating.
Before restarting, the fan must remain switched off
until the motor and temperature limiter have cooled
down. Depending on the size and temperature
conditions, the cooling time can be up to 30 minutes.
Do not switch on the unit until this time has elapsed.

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Manual –AlphaBlower EX 100/ 125
6 Dimensions
Depending on the nominal width, the variants of the
AlphaBlower EX have different dimensions.
Dimensional drawing [mm]
Dimensional drawing [mm]

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Manual –AlphaBlower EX 100/ 125
Dimensional drawing [mm]
Dimensional drawing [mm]

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Manual –AlphaBlower EX 100/ 125
7 Intended Use
7.1 Permitted operation
The AlphaBlower EX fans are suitable for the following
applications:
•AlphaBlower EX fans are suitable for both private and
public/commercial use.
•These fans are used for the extraction/venting of soil air
containing radon under buildings.
•Extraction of radon drainage systems.
•Connection to indoor radon extraction points (fan must
always be placed outside the building).
•Connection to radon wells
•Connection to perimeter drainage systems (Caution:
These must be dry. It must be ensured that no water can
be sucked in).
•Permissible places of use are roofs (flat, pitched,
corrugated or trapezoidal roofs), ceilings or consoles with
sufficient load-bearing capacity. As well as installation
close to the ground.
•A fixed installation with permanently installed electrical
supply cable is mandatory:
•With roof base only on a suitable substructure.

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Manual –AlphaBlower EX 100/ 125
•Without roof base directly on the vent pipe.
•Installation positions up to an inclination of max. 90° are
permissible.
•When connecting to pipes, transitions with elastic
connecting pieces are recommended. These prevent
vibrations from being transmitted to the pipe system.
•In the case of free intake (near the floor), operation is only
permitted with contact protection in accordance with EN
ISO 13857. We offer the matching protective grille for this
as an option. (Must be purchased separately).
7.2 Non-permitted operation
RadonTec is not liable for damage caused by improper use. Do
not use the unit under any circumstances:
•For conveying air saturated with water vapour or
containing grease
•In conjunction with an extractor hood
•For conveying solid particles that may adhere to the fan
•In the vicinity of flammable materials, liquids or gases
•For conveying chemicals, aggressive gases or vapours
•In explosive atmospheres
•If there is no protection against contact with the impeller
in accordance with EN ISO 13857 for free intake (near the
floor)

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Manual –AlphaBlower EX 100/ 125
8 Ambient conditions
Maximum permissible temperature of the pumped medium +
70 °C, depending on the unit variant.
When operating with room air-dependent fireplaces, sufficient
supply air must be provided. The maximum permissible
pressure difference per living unit is 4 Pa.
9 Safety instructions
Read these installation and operating instructions
carefully before using the fan for the first time.
Follow the instructions.
Keep these instructions in a safe place for later use.
Installation may only be carried out by skilled
personnel with knowledge of ventilation
technology.
The electrical connection may only be carried out
by qualified electricians. These have electrical
engineering training and knowledge of the dangers
and effects that can result from an electric shock.
The installation personnel must be height- and
foot-safe.
When working on the roof, sufficient safety
precautions must be taken to protect the
installation personnel.

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Manual –AlphaBlower EX 100/ 125
The degree of protection specified on the type plate
is only guaranteed if the unit is installed as intended
and the cables are properly inserted into the
terminal box.
GOnly connect the unit to a permanently installed
electrical installation with cables of type NYM-O or
NYM-J (3x 1.5 mm² or 5x 1.5 mm²). In addition, a
device for disconnecting from the mains with at
least 3 mm contact opening per pole must be fitted.
Only operate the unit with the voltage and
frequency specified on the type plate.
It is essential to fit a repair switch at the installation
site so that all poles of the unit can be disconnected
from the mains on site during cleaning,
maintenance or repair work. It must be possible to
secure the repair switch against being switched on
again.
Only operate the unit when it is completely
assembled.
A sufficient supply air flow must be ensured.
Modifications and conversions to the unit are not
permitted and release the manufacturer from any
warranty and liability.
Never operate the unit without a protective grille
in the case of free intake (near the floor). Secure
the unit and piping against foreign bodies being
sucked in. Risk of injury from objects in the
impeller. Do not insert any objects into the unit.

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Manual –AlphaBlower EX 100/ 125
Risk of injury from rotating impeller. Do not get too
close to the appliance so that hair, clothing or
jewellery cannot be pulled into the appliance.
D This appliance can be used by children aged from
8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given
supervision or instruction concerning use of the
appliance in a safe way and understand the hazards
involved.
Children must not play with the appliance.
Cleaning and user maintenance must not be carried
out by children without supervision.
If the unit is installed close to the floor, it is
recommended that the fan be installed at a
minimum height of 2 metres. This can reduce wilful
damage, tampering or the risk of injury to children
or animals.
10 Assembly and electrical connection
Cutting injuries due to sharp-edged housing plates.
Wear protective gloves.
Notes
•Observe the permissible roof load.

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Manual –AlphaBlower EX 100/ 125
•Install ventilation lines properly.
•Lay the mains cable firmly to the installation site.
•It is essential to observe the relevant regulations for
electrical installation and device assembly, in Germany in
particular DIN VDE 0100 with the corresponding parts.
•To avoid vibration transmission to the pipe system, use
elastic fastening collars (type ELR).
•To avoid leakage, only screw the roof base onto a suitable,
level substructure. For direct mounting of the
AlphaBlower EX on the ventilation duct, dismantle the
roof base (3 self-tapping screws).
•Use suitable insulation, soundproofing and installation
material between the unit and the roof base.
10.1 Fan installation
Risk of injury in case of wrong mounting location or
insufficient fastening with the roof or the piping.
1. Only mount the unit at locations with sufficient load-
bearing capacity.
2. Sufficiently dimensioned fastening material must be
provided by the customer (screws with Ø 10 mm, min.
strength class 8.8).
3. Screw the unit tightly to the roof, roof base or pipework.