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www.blaubergventilatoren.de

VENTO Ergo A25-1 Pro/A25-1 S Pro

BLAUBERG Company is happy to offer your attention a new heat recovery 

single-room unit VENTO Ergo A25-1 Pro.

INTRODUCTION

The present operation manual contains a technical description, technical 

data sheets, operation and mounting guidelines, safety precautions and 

warnings for safe and correct operation of the unit.  

Read carefully and understand the operation manual, especially the safety 

requirements, before the unit mounting and start up.

Keep the operation manual available as long as you use the unit.

GENERAL

The single-room unit is designed for efficient energy saving supply and 

exhaust ventilation of flats, houses, cottages and other small premises. 

The unit is equipped with a high-tech ceramic heat exchanger that provides 

the extract air heat recovery for warming up of filtered supply air.  The heat 

recovery efficiency of the heat exchanger is up to 85 %.

The unit is designed for indoor application with the ambient temperature 

ranging from -20 °C up to +50 °C and relative humidity up to 80 %.

The unit is designed for external through-the-wall installation. The unit is 

designed for continuous operation always connected to power mains.

The unit is allowed for operation only after final mounting that includes 

installation of protecting devices in compliance with DIN EN ISO 13875 (DIN 

EN OSI 12100) as well as other construction safety equipment.

The unit design is regularly improved, so some models may slightly differ 

from those ones described in this operation manual.

SAFETY RULES

All operations related to the unit electrical connections, servicing and repair 

works are allowed only after the unit disconnection from power mains.  

All mounting and servicing operations are allowed by duly qualified 

personnel. 

The unit must be grounded! 

Please follow the safety regulations and working instructions (DIN EN 50 110, 

IEC 364).

Make sure the impeller and the casing are not damaged before connecting 

the unit to power mains. The casing internals must be free of any foreign 

objects which can damage the impeller blades.

Disconnect the unit from power mains prior to any operations related to the 

unit servicing and repair works.

Misuse of the product or any unauthorized modification are not allowed. 

The unit is designed for connection to AC single-phase power mains, see 

„Technical Data”. The unit is rated for permanent operation during non-stop 

power supply. 

Take steps to prevent ingress of smoke, carbon monoxide and other 

combustion products into the room through open chimney flues or other 

fire-protection devices. Sufficient air supply must be provided for proper 

combustion and exhaust of gases through the chimney of fuel burning 

equipment to prevent back drafting.  The maximum permitted pressure 

difference per living units is 4 Pa.

The transported air must not contain any dust or other solid impurities, sticky 

substances or fibrous materials.

The unit is not rated for operation in a flammable or explosive medium. 

Do not close or block the unit intake or exhaust vent not to disturb the 

normal  air passage. 

Do not sit on the unit and do not put objects on the unit.

In case of unusual sounds, smoke disconnect the unit from power supply and 

contact the service centre.

Follow the operation manual guidelines to ensure trouble-free operation and 

long service life of the unit.

Hazardous parts access and water ingress protection standard IP24. 

STORAGE AND TRANSPORTATION RULES

Transportation of the unit is allowed by any vehicle provided the unit is 

transported in the original package and is protected against weather and 

mechanical damages. 

Use hoist machinery for handling and transportation to prevent possible 

mechanical damages of the unit. Fulfil the requirements for transportation of 

the specified cargo type during cargo-handling operations. 

Store the unit in a dry and cool place in the original packing.

The storage environment must not be subjected to any aggressive and/

or chemical evaporations, admixtures, foreign objects that may provoke 

corrosion and damage connection tightness. 

Store the unit in an environment with minimized risk of mechanical damages, 

temperature and humidity fluctuations. 

Do not expose the unit to the temperatures below +10 °C and above +40 °C .

Connection of the unit to power mains is allowed after the unit has been kept 

indoor for minimum two hours.

MANUFACTURER’S WARRANTY

The product complies with the requirements according to the EU norms 

and directives, to the relevant EU-Low Voltage Equipment Directives, EU-

Directives on Electromagnetic Compatibility. 

We hereby declare that the following product complies with the essential 

protection requirements of Electromagnetic Council Directive 2004/108/

EC, 89/336/EEC and Low Voltage Directive 2006/95/EC, 73/23/EEC and 

CE-marking Directive 93/68/EEC on the approximation of the laws of the 

Member States relating to electromagnetic compatibility. 

The manufacturer hereby warrants normal operation of the product over 

the period of 2 years from the retail sale date provided observance of the 

installation and operation regulations.

In case of failure due to manufacturing fault during the warranty period the 

consumer has the right to exchange it.

If case of no confirmation of the sale date, the warranty period shall be 

calculated from the manufacturing date.

The replacement is offered by the Seller. 

The manufacturer shall not be liable for any damage resulting from any 

misuse of or gross mechanical interference with the unit.

Fulfil the operation manual requirements to ensure a trouble-free and long 

service life of the unit.

Summary of Contents for VENTO Ergo A25-1 Pro

Page 1: ...OPERATION MANUAL VENTO Ergo A25 1 Pro VENTO Ergo A25 1 S Pro HEAT RECOVERY SINGLE ROOM UNIT EN ...

Page 2: ...and storage rules 3 Manufacturer s warranty 3 Design and operating logic 4 Modifications and options 5 Delivery set 5 Technical data 6 Mounting 7 Connection to power mains 9 Unit control 10 Maintenance 12 Troubleshooting and fault handling 13 Acceptance certificate 14 Connection certificate 14 Warranty card 14 CONTENTS ...

Page 3: ...by qualified professionals WARNING Read the operation manual prior to any electric installations Connection of the unit to power mains is allowed by a qualified electrician only The rated electrical parameter are stated on the rating plate No modifications of internal connections are allowed and will result in void warranty Connect the fan only to power mains with valid electric standards The unit...

Page 4: ... burning equipment to prevent back drafting The maximum permitted pressure difference per living units is 4 Pa The transported air must not contain any dust or other solid impurities sticky substances or fibrous materials The unit is not rated for operation in a flammable or explosive medium Do not close or block the unit intake or exhaust vent not to disturb the normal air passage Do not sit on t...

Page 5: ... the air duct when the unit is off Air is supplied and extracted with an axial reversible fan with EC motor and low energy demand The motor has overheating protection and ball bearings for longer service life Two built in filters with total filter class G3 and antibacterial coating are used for supply and extract air filtration and the heat exchanger anti soiling protection The unit is equipped wi...

Page 6: ...h cold air from outside absorbs accumulated heat and moisture As the heat exchanger cools down the unit changed into air extract mode Unit operation logic in winter time Cycle 2 70 seconds Air extraction from the room Cycle 1 70 seconds Air extraction from the room OUTSIDE OUTSIDE INSIDE 17 C 20 C 7 C 10 C The unit has four ventilation modes Ventilation the unit operates in permanent extract or su...

Page 7: ...Max air flow m3 h 7 16 25 RPM 1250 1397 2541 Sound pressure level at 1 m distance dB A 31 35 43 Sound pressure level at 3 m distance dB A 19 22 29 Outdoor sound attenuation dB A 19 Transported air temperature C from 20 up to 50 Filter extract supply G3 Heat recovery efficiency up to 85 Heat exchanger type ceramic heat exchanger Ingress Protection Rating IP24 Fig 6 Overall dimensions VENTO Ergo A25...

Page 8: ...ic air duct on outer wall side must be equal to the distance A fig 8 Distance ring А Inside Outside Model А mm VENTOErgoA25 1Pro 10 VENTOErgoA25 1SPro 10 140 Fig 8 3 Fill the gaps between the wall and the telescopic air duct with a mounting foam Fig 9 4 Install the filter the ceramic heat exchanger another filter and the air flow rectifier in the telescopic air duct Fig 10 5 Mark the fastening hol...

Page 9: ...er ventilation hood 1 2 Fig 12b 8 Fix the back part of the outer hood on the wall Fig 13a VENTO Ergo A25 1 Pro model Fix the back part of the outer ventilation hood to the wall with the screws 4x40 from the delivery set Fig 13a Screws Fig 13b VENTO Ergo A25 1 S Pro model Fix the back part of the outer ventilation hood to the wall with the screws 4x40 from the delivery set Screws Fig 13b 9 Install ...

Page 10: ...ug CONNECTION TO POWER MAINS Fig 15 Wiring diagram XS3 CN7 TB2 TB1 TB3 L 1 2 3 1 2 3 4 5 6 L G D N L G D N XS4 A1 Unit controller XS2 XS1 1 100 230 V 50 60 Hz The jumper between the contacts 1 and 2 or 2 and 3 of CN7 socket connector determines air flow direction in Ventilation mode If the jumper connects the contacts 1 and 2 air is extracted from the room in Ventilation mode factory setting If th...

Page 11: ...aust ventilation with heat recovery High speed The unit operates with maximum air capacity Air supply Medium speed The unit operates with air capacity 50 Ventilation Turning unit ON OFF Night mode The unit changes to low speed after receipt of a signal from the photosensor Air supply mode The unit operates in permanent natural air supply mode Humidity control mode Set the required humidity set poi...

Page 12: ...mper position Changeover to the Ventilation Mode All the connected in series units operate either in Air Extract or Air Supply Mode depending on the CN7 jumper position By default the jumper is set to Air Extract mode Changeover to Heat Recovery Mode The unit changes air supply and air extract cycles and operates in reversible mode with heat recovery The unit operates 70 seconds Air Supply Mode th...

Page 13: ...turn the unit off and clean or replace the filters To clean the filters flush those with water or use a vacuum cleaner fig 22 Install the dry filters into the air duct Contact a local distributor for the new filters stated above in the section Technical data Even regular filter maintenance may not completely prevent dust accumula tion on the heat exchanger unit Clean the heat exchanger with a vacu...

Page 14: ...ircuit in power grid as a result of short circuit Turn the unit off Contact the seller Low air flow Low set fan speed Set higher speed The filters the fan or the heat exchanger are soiled Clean or replace the filter Clean the fan and the heat exchanger Refer page 12 for maintenance of the heat exchanger and the filters Sound signals The motor meter is actuated Refer page 12 for maintenance of the ...

Page 15: ...Directive 93 68 EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility This certificate is issued following test carried out on samples of the product referred to above Approval mark Manufacturing date____________________ Company Name _ Date Signature Heat recovery single room unit VENTO Ergo A25 1 Pro VENTO Ergo A25 1 S Pro is connected to power mains ...

Page 16: ...www blaubergventilatoren de VENTO Ergo A25 1 Pro v 1 2 EN ...

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