BLAUBERG Ventilatoren Vento Expert A50-1 Pro User manual

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USER’S MANUAL
EN
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CONTENTS
Safety requirements..................................................................................................................................................................... 3
Purpose................................................................................................................................................................................................ 5
Delivery set........................................................................................................................................................................................ 5
Designation key.............................................................................................................................................................................. 5
Technical data.................................................................................................................................................................................. 6
Design and functioning ............................................................................................................................................................ 7
Mounting and set-up.................................................................................................................................................................. 9
Connection to power mains .................................................................................................................................................. 12
Technical maintenance.............................................................................................................................................................. 17
Troubleshooting............................................................................................................................................................................. 19
Storage and transportation regulations.......................................................................................................................... 19
Manufacturer’s warranty........................................................................................................................................................... 20
Certificate of acceptance.......................................................................................................................................................... 23
Seller information.......................................................................................................................................................................... 23
Installation certificate.................................................................................................................................................................. 23
Warranty card................................................................................................................................................................................... 23
This user’s manual is a main operating document intended for technical, maintenance, and operating staff.
The manual contains information about purpose, technical details, operating principle, design, and installation of the
Vento Expert (Duo) A50(30)-1 Pro/Pro3 unit and all its modifications.
Technical and maintenance staff must have theoretical and practical training in the field of ventilation systems and should be able to
work in accordance with workplace safety rules as well as construction norms and standards applicable in the territory of the country.
The information in this user’s manual is correct at the time of the document’s preparation.
The Company reserves the right to modify the technical characteristics, design, or configuration of its products at any time in order to
incorporate the latest technological developments.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means in any information
search system or translated into any language in any form without the prior written permission of the Company.

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SAFETY REQUIREMENTS
• Please read the user’s manual carefully prior to installing and operating the unit.
• All user’s manual requirements as well as the provisions of all the applicable local and national
construction, electrical, and technical norms and standards must be observed when installing
and operating the unit.
• The warnings contained in the user’s manual must be considered most seriously since they
contain vital personal safety information.
• Failure to follow the rules and safety precautions noted in this user’s manual may result in an
injury or unit damage.
• After a careful reading of the manual, keep it for the entire service life of the unit.
• While transferring the unit control, the user’s manual must be turned over to the receiving
operator.
UNIT INSTALLATION AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from
power mains prior to any
installation operations.
• Unpack the unit with care.
• The unit must be grounded!
• While installing the unit, follow
the safety regulations specific
to the use of electric tools.
• Do not change the power
cable length at your own
discretion.
• Do not bend the power cable.
• Avoid damaging the power
cable.
• Do not put any foreign objects
on the power cable.
• Do not lay the power cable of
the unit in close proximity to
heating equipment.
• Do not use damaged
equipment or cables when
connecting the unit to power
mains.
• Do not operate the unit
outside the temperature range
stated in the user’s manual.
• Do not operate the unit
in aggressive or explosive
environments.

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• Do not touch the unit controls
with wet hands.
• Do not carry out the
installation and maintenance
operations with wet hands.
• Do not wash the unit with
water.
• Protect the electric parts of the
unit against ingress of water.
• Do not allow children to
operate the unit.
• Disconnect the unit from
power mains prior to any
technical maintenance.
• Do not store any explosive or
highly flammable substances
in close proximity to the unit.
• When the unit generates
unusual sounds, odour, or
emits smoke, disconnect it
from power supply and contact
the Seller.
• Do not open the unit during
operation.
• Do not direct the air flow
produced by the unit towards
open flame or ignition sources.
• Do not block the air duct when
the unit is switched on.
• In case of continuous
operation of the unit,
periodically check the security
of mounting.
• Do not sit on the unit and
avoid placing foreign objects
on it.
• Use the unit only for its
intended purpose.
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.

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THE UNIT SHOULD NOT BE OPERATED BY CHILDREN OR PERSONS WITH REDUCED
PHYSICAL, MENTAL, OR SENSORY CAPACITIES, OR THOSE WITHOUT THE APPROPRIATE
TRAINING.
THE UNIT MUST BE INSTALLED AND CONNECTED ONLY BY PROPERLY QUALIFIED
PERSONNEL AFTER THE APPROPRIATE BRIEFING.
THE CHOICE OF UNIT INSTALLATION LOCATION MUST PREVENT UNAUTHORIZED
ACCESS BY UNATTENDED CHILDREN.
PURPOSE
The ventilator is designed to ensure continuous mechanical air exchange in flats, cottages, hotels, cafés and other domestic and public
premises. The ventilator is equipped with a regenerator that enables supply of fresh filtered air heated by means of extract air heat energy
recovery. The ventilator is designed for wall flush mounting.
The unit is rated for continuous operation without disconnection from the power supply.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, sticky substances, fibrous materials,
coarse dust, soot and oil particles or environments favourable for the formation of hazardous substances (toxic substances, dust,
pathogenic germs).
Name Vento Expert A50-1 Pro/Pro3 Vento Expert Duo A30-1 Pro
Indoor unit of the ventilator 1 pc. 1 pc.
Air duct 1 pc. 1 pc.
Air flow distributor – 3-6 pcs.
Sound-absorbing material 1 pc. –
Assembled cartridge 1 pc. 1 pc.
Outer ventilation hood 1 pc. 1 pc.
Remote control 1 pc. 1 pc.
Cardboard template 1 pc. 1 pc.
Fastening set 2 packs 2 packs
Foam wedges 1 set 1 set
User's manual 1 pc. 1 pc.
Mounting hood installation instruction 1 pc. 1 pc.
Packing box 1 pc. 1 pc.
Vento Expert A50 -1 LS10 Pro
Automation availability
Pro – controls and control unit are included in the delivery set
Pro3 – model without automatic shutters, with manual airflow blocking
Ventilation hood model
Air duct length
_ – 500 mm
L – 700 mm
L035 – 350 mm
L10 – 1000 mm
Front panel modication
1 – flat front panel
Rated air ow [m/h]
Air duct cross section
A – round
Ventilator series
Expert is a series of reversible ventilators with a unidirectional air flow.
Expert Duo is a series of reversible ventilators with a countercurrent air flow.
DELIVERY SET
DESIGNATION KEY

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The unit is rated for indoor application with the following conditions:
• Temperature ranging from -20 °C (-4 °F) up to +40 °C (104 °F) and relative humidity to 50 % are for the
Vento Expert A50-1 Pro/Pro3 units.
• Temperature ranging from -15 °C (5 °F) up to +40 °C (+104 °F) and relative humidity to 65 % are for theVento Expert Duo A30-1 Pro
units.
The unit is rated as a class II electric appliance.
Ingress protection rating against access to hazardous parts and water ingress is IP24.
The unit design is constantly being improved, thus some models may be slightly different from those described in this manual.
Technical specifications of the particular model are indicated on the unit casing.
The air duct length depends on the unit model, refer to the Designation Key section, page 6.
The supplied ventilation hood model depends on the ventilator model.
The overall dimensions of the outer ventilation hood, the required outside protrusion length of the air duct Aand the mounting sequence
of the hood are stated in its mounting instruction.
The overall dimensions of the front panel are stated below.
OVERALL DIMENSIONS OF THE INDOOR UNIT [mm] (inch)
68
(2 11/16")
235
(9 1/4")
285
(11 1/4")
207
(8 1/8")
85
(3 3/8")
137
(5 3/8")
138
(5 7/16")
207
(8 1/8")
85
(3 3/8")
137
(5 3/8")
138
(5 7/16")
Vento Expert Vento Expert Duo
Длина воздуховода (толщина стены)
A A
LL
Air duct length
Wall thickness
Wall thickness is above the minimum Wall thickness is minimal
Outer ventilation
hood
Front panel Front panel
Cartridge Cartridge
Air duct length
Wall thickness
Outer ventilation
hood
TECHNICAL DATA

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The ventilator consists of an indoor unit with a decorative front panel, a cartridge, an air duct and an outer ventilation hood.
The cartridge is a basic functioning part of the ventilator. The cartridge consists of the fan, the regenerator and two filters that ensure
rough air filtration and prevent ingress of dust and foreign objects into the regenerator and the fan.
The indoor assembly unit is equipped with automatic shutters that close during the ventilator standstill and prevent air backdraft.
The Vento Expert Duo A30-1 Pro units are equipped with a set of air flow separators. The design of the supplied ventilation hood ensures
opposite direction of extract and supply air flows.
The outer ventilation hood is used to prevent direct ingress of water and other objects to the ventilator.
Filters
Clean the air flowing through
the ventilator of dust and
foreign objects.
Prevent contamination of the
regenerator.
Front part of the indoor unit with a front panel
Fulfils the decorative function. The design enables to
shut off the air duct in case of an extended downtime of
the ventilator.
The front part of the Vento Expert Duo unit is used for air
filtration.
Back part of the indoor unit
The unit includes a circuit control board and basic controls located on the side part.
Back part of the indoor unit
The unit includes a circuit control board and
basic controls located on the side part.
Vento Expert Duo cartridge
Construction consisting of fans and regenerators.
Generates air flow and provides heat recovery.
Vento Expert cartridge
Construction consisting of fans, a regenerator and air filters.
Generates air flow and provides heat recovery.
Air duct
Plastic air duct.
Air ow separators
Designed for separation of
supply and exhaust air streams.
Outer ventilation hood
Prevents ingress of water and foreign objects into the ventilator.
Each ventilator model has a matching ventilation hood model.
Sound absorbing material
A layer of sound-absorbing material for attenuation of noise
generated during the ventilator operation.
Vento Expert Duo
Vento Expert
VENTILATOR DESIGN
DESIGN AND FUNCTIONING

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VENTILATOR OPERATION MODES
Vento Expert A50-1 Pro/Pro3 Vento Expert Duo A30-1 Pro
Ventilation: the ventilator runs either in extract or supply mode
at a set speed.
In this mode, when two ventilators are installed, one of them
supplies and the other one extracts the air.
Boost: the ventilator goes to the maximum speed without
changing the operation mode.
Regeneration: the ventilator runs in two cycles, 70 seconds each,
with heat and humidity regeneration.
• Cycle I. Warm stale air is extracted from the room and flows
through the ceramic regenerator, which gradually absorbs
heat and humidity. In 70 seconds, as the ceramic regenerator
gets warmed, the ventilator is switched to supply mode.
• Cycle II. Fresh intake air from outside flows through the ceramic
regenerator, absorbs accumulated moisture and is heated
up to the room temperature. In 70 seconds, as the ceramic
regenerator gets cooled down, the ventilator is switched to air
extract mode and the cycle is renewed. If two ventilators are
installed, they operate with opposite rotation directions in this
mode. While one ventilator supplies air, the other one extracts
it.
Ventilation: one of the ventilator fans operates in the air extract
mode and the other one operates in the air supply mode at a set
speed. The fans do not change their rotation direction.
Boost: if the sensor is actuated, the ventilator follows one of two
functioning algorithms set via the DIP switch during the ventilator
setup. For details, see page 14. The DIP switch is set to OFF: the
ventilator runs in the extract mode at the third speed (both fans
run in the extract mode). The DIP switch is set to ON: the ventilator
switches to maximum speed without changing the operation
mode.
Regeneration: one of the ventilator fans operates in the air
extract mode and the other one operates in the air supply mode.
The fans change their rotation direction every 70 seconds.
The shutters are closed The shutters are open
Vento Expert A50-1 Pro LOUVER SHUTTERS OPERATION PRINCIPLE
Pro version is equipped with automatic shutters. During the ventilator operation the automatic shutters open and let the air flow freely
through the ventilator. The automatic shutters are closed for 2 minutes at the ventilator shut down.
WARNING! In case of supplying power to the ventilator when the frontal part of the indoor unit is removed, no power is supplied to the
actuator and its rod is not lifted to avoid damage. After installing the front part of the indoor unit into place, the louver actuator will start
operating normally.

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READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT.
DO NOT BLOCK THE AIR DUCT OF THE INSTALLED VENTILATOR WITH DUST
ACCUMULATING MATERIALS, SUCH AS CURTAINS, CLOTH SHUTTERS, ETC.
AS IT PREVENTS AIR CIRCULATION IN THE ROOM.
1. Prepare a round core hole in the outer wall. The hole size is shown in the figure below. While preparing core holes it is recommended
to make preparations for layout of the power cable and other required cables.
A
AA-A
ø 7"
min 20"
min 20"
min 20"
ø 180
min 500
min 500
min 500
2. Install the air duct in the wall and fix it with mounting foam. The air duct end must protrude for the distance that enables installation
of the outer ventilation hood (see the User’s manual for the outer ventilation hood).
A
min 3 mm
Fill the gaps between
the wall and the hole
with a mounting foam.
Foam wedge Install the air duct in the wall in such a way so it protrudes from the
wall surface for maximum 3 mm or is flush with the wall.
Install the air duct with the minimum slope 3 mm downwards.
On the outer wall side the air duct end must protrude to a distance
that enables installation of the outer ventilation hood. Distance A
is stated in the installation instruction for the ventilation hood.
MOUNTING AND SETUP

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3. Stick the delivered cardboard master plate on the indoor wall using a mounting tape. The large opening in the master plate must be
axially aligned with the air duct. For aligning the master plate with respect to the horizon line it is recommended to use a builder’s level.
Then mark the fastening holes for installation of the supplied dowels and drill the holes to a required depth.
Route the power cable from the wall outside through the specially marked opening on the master plate.
4. Unlatch and detach the front part of the indoor unit from its back part.
The thermal actuator rod must
be in lower position when
installing the front panel of
the Vento Expert A50-1 Pro
unit.
5. Fix the back part of the indoor unit on the wall with the screws supplied with the mounting kit of the ventilator.
Remove the two retaining screws from the left transparent cover to enable access to the terminals.
6. Route the power cable as figured below and connect the ventilator to power mains in compliance with the external wiring diagram,
refer to page 12.
Fix the power cable and the signal cables with cable clamps. After completion of the electrical connection re-install the transparent
cover to its place.
Cable clamp