Blauberg VENTO Ergo A50/A85-1 Pro V.3

Safety Requirements

• 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.
• Disconnect the unit from the power supply prior to any connection, servicing, maintenance, and repair operations.
• Only qualified electricians with a work permit for electrical units up to 1000 V are allowed for installation.
• The present user's manual should be carefully read before beginning works.
• Check the unit for any visible damage of the impeller, the casing, and the grille before starting installation. The casing internals must be free of any foreign objects that can damage the impeller blades.
• While mounting the unit, avoid compression of the casing! Deformation of the casing may result in motor jam and excessive noise.
• Misuse of the unit and any unauthorised modifications are not allowed.
• Do not expose the unit to adverse atmospheric agents (rain, sun, etc.).
• Transported air must not contain any dust or other solid impurities, sticky substances, or fibrous materials.
• Do not use the unit in a hazardous or explosive environment containing spirits, gasoline, insecticides, etc.
• Do not close or block the intake or extract vents in order to ensure the efficient air flow.
• Do not sit on the unit and do not put objects on it.
• Never touch the unit with wet or damp hands.
• Never touch the unit when barefoot.
• This unit is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the unit by a person responsible for their safety. Children should be supervised to ensure that they do not play with the unit.
• Connection to the mains must be made through a disconnecting device, which is integrated into the fixed wiring system in accordance with the wiring rules for design of electrical units, and has a contact separation in all poles that allows for full disconnection under overvoltage category III conditions.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons in order to avoid a safety hazard.
• Ensure that the unit is switched off from the supply mains before removing the guard.
• Precautions must be taken to avoid the back-flow of gases into the room from the open flue of gas or other fuel-burning appliances.
• The product must be disposed of separately at the end of its service life. Do not dispose of the unit as unsorted domestic waste.

Purpose

The ventilator is designed to ensure continuous mechanical air exchange in flats, cottages, hotels, cafes 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 installation on external walls. The unit is rated for continuous operation.

Delivery Set

• Indoor assembly unit of the ventilator
• Telescopic air duct
• Regenerator with filters, assembled
• Outer ventilation hood
• Remote control
• Cardboard mounting plate
• Sealing gasket
• Mounting kit
• Mounting wedges
• User's manual
• Mounting hood installation instruction
• Packing box

Designation Key

The designation key for VENTO Ergo ventilators is as follows:

• VENTO Ergo A: Ventilator series
• 50: Rated air flow [m³/h] (e.g., 50 m³/h)
• -1: Front panel modification
• S: Ventilation hood model (if applicable)
• Pro: New version of the internal mounting plate
• V.3: Ventilator version

Technical Data

The temperature in the room where the indoor unit is installed must be between +1 °C and +40 °C with relative humidity up to 65% (no condensation). If conditions exceed these limits, turn off the ventilator and provide fresh air through windows. The transported air temperature should range from -20 °C to +40 °C. The unit is classified as a Class II electric appliance with an Ingress Protection (IP) rating of IP22.

The telescopic air duct allows length adjustment without mechanical cutting. The allowable wall thickness for installation depends on the outer hood used:

Specific technical specifications for each model are indicated on the unit casing. Overall and connecting dimensions for the outer ventilation hood, air duct protrusion length (A), and mounting sequence are detailed in the hood's installation instruction. The overall dimensions of the front panel are approximately 242 mm in height and 93 mm in width.

Design and Operating Principle

The ventilator comprises an indoor unit with a decorative front panel, a telescopic air duct, and an outer ventilation hood. The inner duct of the telescopic air duct houses two filters, two air flow rectifiers, and a ceramic regenerator. The air filters purify supply air and prevent foreign objects from entering the heat exchanger and fan. The ceramic regenerator utilizes the heat energy from extract air to warm the incoming fresh air. A cord within the regenerator is used to pull it out of the air duct. The heat exchanger is insulated with special material. The outer ventilation hood prevents direct ingress of water and other objects.

Ventilation Unit: Generates airflow via fan rotation. It is protected by a ventilation grille on the inner wall side to prevent foreign objects from entering the fan. The unit features automatic shutters that open during operation and close when the unit is turned off, preventing air backflow.

Components:

• Inner air duct: The inner part of the telescopic air duct.
• Ceramic regenerator: Utilizes extract air heat energy to warm supply air.
• Outer air duct: The outer part of the telescopic air duct.
• Mounting plate: A housing for installing the ventilation unit on the wall and connecting power supply.
• Air flow rectifier: Prevents air turbulence within the ventilator.
• Filter: Cleans incoming air of dust and foreign objects, protecting the regenerator.
• Openings for the humidity sensor: Allow air contact with the sensor that monitors indoor humidity levels.
• Ventilator power indicator: Shows the operating status of the ventilator.
• Filter replacement indicator: Signals the need to clean or replace the filter.
• Infra-red receiver and light sensor: Detects signals from the remote control and ambient light levels to activate night mode.

Automatic Shutters: The indoor unit is equipped with automatic shutters. These open during operation to allow free airflow and close for 2 minutes after the unit is shut down.

Ventilation Modes: The ventilator offers four modes:

• Natural air supply: Automatic shutters are open, fan is idle.
• Air supply: The ventilator supplies fresh air to the premise.
• Ventilation: Operates in permanent supply or extract mode at a set speed, configurable via a jumper (CN7).
• Regeneration: Operates in a reversible mode with heat and humidity recovery. This mode consists of two 70-second cycles:
  • Cycle I: Warm stale air is extracted, heating and moisturizing the ceramic regenerator, transferring up to 90% of heat energy.
  • Cycle II: Fresh intake air flows through the regenerator, absorbing accumulated moisture and being heated towards room temperature.

Mounting and Set-up

Important: Read the User's Manual before installation. Do not block the air duct with materials like curtains, as this prevents air circulation.

1. Prepare Wall Opening: Create a round core hole in the outer wall with a diameter of approximately 180 mm. Ensure minimum clearance of 300 mm around the hole. Plan for power cable routing. Use the supplied cardboard template to mark the positions for the duct opening and cable exit.
2. Insert Air Duct: Insert the telescopic air duct into the wall opening. Use mounting wedges for easier installation. The duct end must protrude by distance 'A' to accommodate the outer ventilation hood (refer to hood's installation instruction for 'A'). Fill any gaps between the wall and the duct with mounting foam. Install the air duct with a slight downward slope (minimum 3 mm) towards the outside. The air duct length can be adjusted before or after installation.
3. Access Control Board: Remove the mounting plate to access the control board for power connection and potential interconnections with other units. Unscrew the four self-tapping screws holding the mounting plate. Carefully disconnect the mounting plate from the unit, avoiding damage to connecting cables. Disconnect the two connectors between the mounting plate and the ventilation unit. Reassemble in reverse order, handling cables with care.
4. Mounting Plate Installation: Use the cardboard template to mark mounting holes on the wall for the ventilator. Drill holes and insert wall anchors (dowels). Position the mounting plate unit against the wall, placing a sealing gasket underneath. Secure the mounting plate to the wall using self-tapping screws from the mounting kit. Reattach the mounting plate unit with connectors in place and secure it with the four screws.
5. Install Components: Insert the air flow rectifier, filter, ceramic regenerator, second filter, and second air flow rectifier into the telescopic air duct. Then, mount the ventilation unit onto the installed mounting plate.

Connection to Power Mains

Warning: Disconnect power before any operations. Connection must be performed by a qualified electrician with appropriate permits. Refer to the manufacturer's label for rated electrical parameters.

Tampering with internal connections is prohibited and voids the warranty.

The ventilator connects to a single-phase AC 1~100-230 V, 50/60 Hz power mains. Use an external automatic circuit breaker with a magnetic trip integrated into the fixed wiring system. The power cable connects to the upper terminal block.

Ventilation Mode Setting: The air direction in 'Ventilation' mode is set using jumpers (CN7) on the control board located inside the ventilation unit. The jumper positions determine whether the mode is 'Air supply' or 'Air exhaust'.

Connecting Multiple Ventilators in Series: Multiple ventilators can be connected in series and controlled by the first unit and its remote control. Connect the control terminals of adjacent units using a screened cable (minimum 0.25 mm² cross-section, not included). Power must be supplied separately to each ventilator.

Control

The ventilator can be operated using the remote control or the buttons on the ventilator casing. Casing buttons offer limited functions (activating second/third speed, setting three of four modes), while the remote control provides broader capabilities. The remote control has a guaranteed minimum range of 3 meters. The IR receiver is located at the bottom of the fan assembly.

In case of power failure, the ventilator resumes its previous operation mode upon power restoration.

Casing Buttons:

• Speed switch: Selects fan speed.
• Operation mode switch: Selects ventilation mode.

Remote Control Functions:

• ON/OFF: Turns the ventilator on or off.
• Night mode: Activates first speed in darkness (confirmed by a long sound signal). Exiting night mode is confirmed by a short sound signal.
• Speed changeover: Selects first, second, or third speed.
• Operation mode:
  • Natural air supply mode: Shutters open, fan is off.
  • Air supply mode: Supplies fresh air at a set speed, independent of jumper position.
  • Ventilation mode: Extracts or supplies air at selected speed, depending on CN7 jumper position.
  • Regeneration mode: Operates in 70-second cycles for supply and exhaust, enabling heat recovery.
• Humidity Control mode: Can be activated only in Regeneration mode. The unit's humidity sensor monitors extract air humidity and adjusts fan speed based on the set humidity point.
  • If indoor humidity is near the set range: second speed.
  • If indoor humidity is above the set point: third speed.
  • If indoor humidity is below the set point: first speed.
  Humidity thresholds are approximately 45%, 55%, and 65%. This function is accessible via the remote control only.

Technical Maintenance

Warning: Disconnect the unit from power supply before any maintenance. Ensure the unit is disconnected before removing protection.

Maintenance involves regular cleaning of surfaces and cleaning/replacement of filters.

1. Heat Exchanger and Filter Maintenance (3-4 times per year):
   1. Remove the ventilation unit.
   2. Remove the air flow rectifier.
   3. Remove the filter upstream of the regenerator.
   4. Pull the regenerator cord to remove the regenerator from the air duct, being careful to avoid damage.
   5. Remove the filter downstream of the regenerator.

   Clean filters as needed, at least 3 times annually. The filter replacement indicator will illuminate after a set period (factory default: 90 days) to signal the need for cleaning or replacement. Filters can be washed, air-dried, or vacuum cleaned. The filter service life is 3 years. Replacement filters can be obtained from the seller.

   Some dust may accumulate on the regenerator block. Clean the heat exchanger regularly for optimal efficiency, at least once a year, using vacuum cleaning.

2. Fan Inspection (once per year): Remove the ventilation unit and clean the fan blades. Use a soft brush, cloth, or vacuum cleaner. Avoid water, abrasive detergents, solvents, or sharp objects.
3. Resetting Filter Indicator: After installing new filters and the regenerator, press and hold the filter indicator reset button for 10 seconds. The red indicator light should turn off.
4. Remote Control Battery Replacement: Replace the battery (CR2025 type) when the remote control becomes unresponsive. Remove the battery holder, replace the battery, and reinsert the holder.

Troubleshooting

Storage and Transportation Regulations

• Store the unit in its original packaging in a dry, closed, ventilated premise between +5 °C and +40 °C with relative humidity up to 70%.
• The storage environment must be free of aggressive vapors and chemical mixtures that could cause corrosion or deformation.
• Use appropriate lifting machinery for handling and storage to prevent damage.
• Follow standard handling requirements for cargo.
• Transport the unit in its original packaging by any mode, ensuring protection against precipitation and mechanical damage. Always transport in the working position.
• Avoid sharp blows, scratches, or rough handling during loading/unloading.
• Before initial power-up after transportation in low temperatures, allow the unit to warm up to operating temperature for at least 3-4 hours.

Manufacturer's Warranty

The product complies with EU Low Voltage Directive (2014/35/EU), Electromagnetic Compatibility (EMC) Directive (2014/30/EU), and CE-marking Council Directive (93/68/EEC).

Blauberg warrants normal operation for 24 months from the retail sale date, provided all transportation, storage, installation, and operation regulations are observed. Warranty repair covers elimination of faults free of charge at the factory, including component replacement or repair. It does not cover routine maintenance, installation/dismantling, or setup.

To claim warranty service, present the unit, user's manual with purchase date stamp, and proof of purchase. The unit model must match the manual.

Warranty does not apply in cases of:

• Incomplete unit delivery or missing components.
• Mismatch of unit model/brand with documentation.
• Failure to perform timely technical maintenance.
• External or internal damage caused by the user.
• Unauthorized redesign or engineering changes.
• Use of unapproved parts or components.
• Unit misuse or violation of installation/control regulations.
• Connection to incorrect voltage or damage from voltage surges.
• Unauthorized repairs.
• Expiration of the warranty period.
• Violation of transportation or storage regulations.
• Damage by third parties or force majeure events (fire, flood, war, etc.).
• Missing seals.
• Failure to present the user's manual with purchase date or proof of purchase.

Observing these regulations ensures long and trouble-free operation. Warranty claims are reviewed only upon presentation of the unit, payment document, and user's manual with purchase date stamp.

Certificate of Acceptance

Unit Type: Single-room reversible energy recovery ventilator

Model: [Model Name/Number]

Serial Number: [Serial Number]

Manufacture Date: [Date]

Quality Inspector's Stamp: [Stamp Area]

Seller Information

Seller: [Seller Name]

Address: [Seller Address]

Phone Number: [Seller Phone]

E-mail: [Seller Email]

Purchase Date: [Date]

This is to certify acceptance of the complete unit delivery with the user's manual. The warranty terms are acknowledged and accepted.

Customer's Signature: [Signature Area]

Installation Certificate

The unit _____________________________________ is installed pursuant to the requirements stated in the present user's manual.

Company name: [Company Name]

Address: [Company Address]

Phone Number: [Company Phone]

Installation Technician's Full Name: [Technician Name]

Installation Date: [Date]

Signature: [Signature Area]

The unit has been installed in accordance with the provisions of all the applicable local and national construction, electrical and technical codes and standards. The unit operates normally as intended by the manufacturer.

Signature: [Signature Area]

Warranty Card

Unit Type: Single-room reversible energy recovery ventilator

Model: [Model Name/Number]

Serial Number: [Serial Number]

Manufacture Date: [Date]

Purchase Date: [Date]

Warranty Period: [Period]

Seller: [Seller Name]

Seller's Stamp: [Stamp Area]

Installation Stamp: [Stamp Area]