BLAUBERG Ventilatoren ERV D 100 Heat and Energy Recovery Air Handling Unit User Manual

BLAUBERG Ventilatoren ERV D 100 Heat and Energy Recovery Air Handling

Unit

Product Information

Specifications:

• Model: KOMFORT ERV D 100, KOMFORT ERV D 200, KOMFORT ERV D 300, KOMFORT ERV D 450
• Material: Painted steel
• Air Flow: 100/200/300/450 m3/h
• Power Supply: 230V
• Dimensions:
  • KOMFORT ERV D 100: A – 100mm, L – 734mm, B – 600mm, H – 481mm
  • KOMFORT ERV D 200: A – 150mm, L – 987mm, B – 854mm, H – 704mm
  • KOMFORT ERV D 300: A – 150mm, L – 987mm, B – 854mm, H – 704mm
  • KOMFORT ERV D 450: A – 150mm, L – 1157mm, B – 1024mm, H – 754mm

Product Usage Instructions

Safety Requirements:
It is essential to follow safety requirements to ensure safe operation of the air handling unit. This unit should not be operated by individuals with reduced capabilities or children without supervision.

Installation:
The unit must be installed and connected only by properly qualified personnel. Ensure that the unit is installed in a location that prevents unauthorized access by children.

Maintenance:
Regular maintenance is crucial for the optimal performance of the air handling unit. Cleaning and user maintenance should not be performed by children without supervision.

Disposal:
At the end of its service life, the product must be disposed of separately and not as unsorted domestic waste to prevent environmental hazards.

FAQ:

• Q: Can children operate the air handling unit?
  A: The unit should not be operated by children or individuals with reduced capabilities. It should only be operated by trained personnel.

• Q: What should I do if the supply cord is damaged?
  A: If the supply cord is damaged, it must be replaced by the manufacturer or a qualified service agent to avoid safety hazards.

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 KOMFORT ERV D 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.

SAFETY REQUIREMENTS

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.

• 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.
• Cleaning and user maintenance shall not be made by children without supervision.
• Children shall not play with the appliance.
• 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.
• All operations described in this manual must be performed by qualified personnel only, properly trained and qualified to install, make electrical connections and maintain ventilation units.
• Do not attempt to install the product, connect it to the mains, or perform maintenance yourself. This is unsafe and impossible without special knowledge.
• Disconnect the power supply prior to any operations with 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.
• 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.
• The information in this user’s manual was 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.
• Never touch the unit with wet or damp hands.
• Never touch the unit when barefoot.

BEFORE INSTALLING ADDITIONAL EXTERNAL DEVICES, READ THE RELEVANT USER MANUALS.

THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE

PURPOSE

• The unit is designed to ensure continuous mechanical air exchange in houses, offices, hotels, cafes, conference halls, and other utility and public spaces as well as to recover the heat energy contained in the air extracted from the premises to warm up the filtered stream of intake air.
• The unit is not intended for organizing ventilation in swimming pools, saunas, greenhouses, summer gardens, and other spaces with high humidity.
• Due to the ability to save heating energy by means of energy recovery, the unit is an important element of energy-efficient premises.
• The unit is a component part and is not designed for stand-alone operation. It is rated for continuous operation.
• 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).

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 UNAUTHORISED ACCESS BY UNATTENDED CHILDREN.

DELIVERY SET

• Air handling unit: 1 pc.
• User’s manual: 1 pc.
• Controller: 1 pc.
• Packing box: 1 pc.

DESIGNATION KEY

TECHNICAL DATA

The unit is designed for indoor application with the ambient temperature ranging from +1 °C up to +40 °C and relative humidity up to 60 % without condensation. In cold, damp rooms, there is a possibility of freezing or condensation inside and outside the casing.
In order to prevent condensation on the internal walls of the unit, it is necessary that the surface temperature of the casing is 2-3 °C above the dew point temperature of the transported air.

• The unit should be operated continuously, and in cases where ventilation is not necessary, reduce the air flow of the fans to a minimum (20%).
• This will ensure a favorable indoor climate and reduce the amount of condensation inside the unit, which can damage electronic components.
• Never use the unit for dehumidification, for example, of new buildings.
• The unit is rated as a Class I electrical appliance.
• Hazardous parts access and water ingress protection rating:
• IP22 for the unit connected to the air ducts
• IP44 for the unit motors
• The unit design is constantly being improved, thus some models may be slightly different from those described in this manual.

Parameter| KOMFORT ERV D 100| KOMFORT ERV D 200| KOMFORT ERV D 300| KOMFORT ERV D 450
---|---|---|---|---
Unit supply voltage, 50 Hz [V]| 1~ 230
Maximum unit power [W]| 76| 141| 193| 354
Maximum unit current [A]| 0.33| 0.63| 0.84| 1.54
Maximum flow rate [m3/h]| 160| 280| 340| 500
RPM [min-1]| 2750| 2840| 2720| 2870
Sound pressure level at 3 m distance [dBA]| 47| 49| 52| 57
Transported air temperature [°С]| -15…+40
Casing material| Painted steel
Insulation| Foamed rubber, 5 and 10 mm
Extract filter| G4
Supply filters| G4 + F8 (PM2.5 93 %)
Connected air duct diameter [mm]| 100| 150| 150| 150
Heat recovery efficiency [%]| 75-7| 72-87| 66-87| 71-87
Humidity recovery efficiency [%]| 32-47| 27-47| 22-47| 23-40
Heat exchanger type| Cross-flow enthalpy
Weight [kg]| 17| 24| 27| 39
SEC class| D| D| E| E

DESIGN AND OPERATING PRINCIPLE

The service side of the unit is equipped with a detachable inspection hatch on manual bolts for filter and heat exchanger cleaning and replacement operations. The plate enthalpy cross-flow heat exchanger is made of polymerized cellulose.
The control unit is positioned inside the unit casing . The power cable and grounding cables are connected to the control unit via the cable gland located at the side of the unit. The unit is equipped with a controller and a power cord with a Euro Plug XP.

Warm stale extract air from the room flows into the unit, where it is filtered by the extract filter, then air flows through the heat exchanger and is exhausted outside by the extract fan. Cold fresh air from the outside flows into the unit, where it is cleaned by the supply filter. Then the air flows through the heat exchanger and is directed to the room with the supply fan. Supply air is heated in the heat exchanger by transferring the heat energy of warm and humid extract air to the cold fresh air.

The air flows are fully separated while flowing through the heat exchanger. Heat recovery minimizes heat losses, which reduces the cost of space heating in the cold season. The enthalpy heat exchanger provides both heat and humidity recovery.

In warm seasons the heat exchanger operates to cool down and dehumidify the supply air. In cold seasons the heat exchanger operates to warm up supply air and humidify it. Water vapour from the humid extract air is condensed and absorbed by the heat exchanger plates. The recovered humidity and heat are transferred to the supply air flow. The air streams are fully separated within the heat exchanger and the microbes and smells are isolated.

LEFT-HANDED AND RIGHT-HANDED MODIFICATIONS
The figure below shows the arrangement of spigots for left- and right-handed modifications. Choosing the right arrangement can improve the ease of installation, shorten the length of the ducts and reduce the number of air duct bends (elbows)

The provide heat exchanger freeze protection during the cold season, the unit is equipped with a thermostat that is installed in the exhaust air duct downstream of the heat exchanger. The Defrosting mode is activated when the exhaust air temperature is +3 ˚С. After temperature increase the unit returns to the previous operation mode.

• In the Defrosting mode the supply fan is turned off and the heat exchanger is warmed up with warm extract air flow.
• To set the thermostat threshold value, turn the control knob to the desired position.
• The recommended thermostat operating temperature is +3 °C (factory setting).

MOUNTING AND SET-UP

READ THE USER’S MANUAL BEFORE INSTALLING THE UNIT.
BEFORE INSTALLING ADDITIONAL EXTERNAL DEVICES, READ THE RELEVANT USER MANUALS
WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT MAINTENANCE AND REPAIR.

The unit is designed for suspended ceiling mounting with anchor threaded rods, nuts and anti-vibration rubber. Fasteners for fan mounting are not included in the delivery set and should be ordered separately. While choosing fasteners consider the material of the mounting surface as well as the weigh of the unit, refer to the Technical data section. Fasteners for unit mounting should be selected by a qualified specialist! Before mounting make sure the casing does not contain any foreign objects (e.g. foil, paper). The minimum distance between the unit and the ceiling should be at least 20 mm.

To attain the best performance of the unit and to minimise turbulence-induced air pressure losses, connect the straight air duct section to the spigots on both sides of the unit while mounting.
Minimum straight air duct length:

• equal to 1 air duct diameter on the intake side
• equal to 3 air duct diameters on outlet side

If the air ducts are too short or not connected, protect the unit parts from ingress of foreign objects.
To prevent uncontrollable access to the fan, the spigots may be covered with a protecting grille or other protecting device with mesh width not more than 12.5 mm.

CONNECTION TO POWER MAINS

POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT. THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER’S LABEL.

• The unit is rated for connection to 1~230 V/50 Hz according to the wiring diagram.
• The connection must be made using insulated conductors (cables, wires).
• The actual wire cross section selection must be based on the maximum load current, maximum conductor temperature depending on the wire type, insulation, length and installation method.
• The external power input must be equipped with an automatic circuit breaker QF built into the stationary wiring to open the circuit in the event of overload or short-circuit.
• The position of the external automatic circuit breaker must ensure free access for quick power-off of the unit.
• The trip current of the automatic circuit breaker must exceed the maximum current consumption of the unit (refer to the “Technical data” section or to the unit label).
• It is recommended to select the nominal current of the circuit breaker from the standard series, following the maximum current of the connected unit.
• The circuit breaker is not included in the delivery set and can be ordered separately.

TECHNICAL MAINTENANCE

DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE OPERATIONS!
MAKE SURE THE UNIT IS DISCONNECTED FROM POWER MAINS BEFORE REMOVING THE PROTECTION

The unit must undergo technical maintenance 3 to 4 times a year. They include general cleaning of the unit and the following operations:

1. Filter maintenance (3-4 times per year).
   Dirty filters increase air resistance in the system and reduce supply air volume. Replace the filters when they get dirty but not less than 3-4 times per year. To replace the filters, remove the inspection hatch located on the service panel and remove the dirty filters, then install the new filters and the inspection hatch in the reverse order. For new filters, contact the Seller.

2. Heat exchanger maintenance (once a year).
   Some dust may accumulate on the heat exchanger block even in case of regular maintenance of the filters. To maintain high heat exchange efficiency, periodical dry cleaning is recommended. Use a vacuum cleaner with a narrow nozzle.

3. Fan maintenance (once a year).
   Even in case of regular maintenance of the filters, some dust may accumulate inside the fans and reduce the fan performance and supply airflow. Clean the fans with a soft brush or cloth. Do not use water, aggressive solvents, or sharp objects as they may damage the impeller.

4. Technical maintenance of air duct system (every 5 years).
   Even regular fulfilling of all the prescribed above maintenance operations may not completely prevent dirt accumulation in the air ducts which reduces the unit capacity. Duct maintenance means regular cleaning or replacement.

5. Control unit maintenance (if necessary).
   The control unit is positioned inside the unit casing. For accessing the control unit remove the fixing screws on the service panel and remove it.

TROUBLESHOOTING

supply line is connected correctly, otherwise troubleshoot a connection error.
Low air flow.| Filters, fans or the heat exchanger are soiled.| Clean or replace the filters. Clean the fans and the heat exchanger.
The ventilation system is soiled or damaged.| Clean the ventilation system components. Replace the damaged components.
Noise, vibration.| The fan impeller is soiled.| Clean the impellers.
The fan or casing screw connection is loose.| Tighten the screw connection of the fan or the casing against stop.

STORAGE AND TRANSPORTATION REGULATIONS

• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range from +5 °C to + 40 °C and relative humidity up to 70 %.
• Storage environment must not contain aggressive vapors and chemical mixtures provoking corrosion, insulation, and sealing deformation.
• Use suitable hoist machinery for handling and storage operations to prevent possible damage to the unit.
• Follow the handling requirements applicable for the particular type of cargo.
• The unit can be carried in the original packaging by any mode of transport providing proper protection against precipitation and mechanical damage. The unit must be transported only in the working position.
• Avoid sharp blows, scratches, or rough handling during loading and unloading.
• Prior to the initial power-up after transportation at low temperatures, allow the unit to warm up at operating temperature for at least 3-4 hours.

MANUFACTURER’S WARRANTY

The product complies with EU norms and standards on low voltage guidelines and electromagnetic compatibility. We hereby declare that the product complies with the provisions of Electromagnetic Compatibility (EMC) Directive 2014/30/EU of the European Parliament and of the Council, Low Voltage Directive (LVD) 2014/35/EU of the European Parliament and of the Council and CE-marking Council Directive 93/68/EEC. This certificate is issued following test carried out on samples of the product referred to above. The manufacturer hereby warrants normal operation of the unit for 24 months after the retail sale date provided the user’s observance of the transportation, storage, installation, and operation regulations. Should any malfunctions occur in the course of the unit operation through the Manufacturer’s fault during the guaranteed period of operation, the user is entitled to get all the faults eliminated by the manufacturer using warranty repair at the factory free of charge. The warranty repair includes work specific to the elimination of faults in the unit operation to ensure its intended use by the user within the guaranteed period of operation. The faults are eliminated using replacement or repair of the unit components or a specific part of such unit components.

The warranty repair does not include:

• routine technical maintenance
• unit installation/dismantling
• unit setup

To benefit from warranty repair, the user must provide the unit, the user’s manual with the purchase date stamp, and the payment paperwork certifying the purchase. The unit model must comply with the one stated in the user’s manual. Contact the Seller for warranty service.

The manufacturer’s warranty does not apply to the following cases:

• User’s failure to submit the unit with the entire delivery package as stated in the user’s manual including submission with missing component parts previously dismounted by the user.
• Mismatch of the unit model and the brand name with the information stated on the unit packaging and in the user’s manual.
• User’s failure to ensure timely technical maintenance of the unit.
• External damage to the unit casing (excluding external modifications as required for installation) and internal components caused by the user.
• Redesign or engineering changes to the unit.
• Replacement and use of any assemblies, parts and components not approved by the manufacturer.
• Unit misuse.
• Violation of the unit installation regulations by the user.
• Violation of the unit control regulations by the user.
• Unit connection to power mains with a voltage different from the one stated in the user’s manual.
• Unit breakdown due to voltage surges in power mains.
• Discretionary repair of the unit by the user.
• Unit repair by any persons without the manufacturer’s authorization.
• Expiration of the unit warranty period.
• Violation of the unit transportation regulations by the user.
• Violation of the unit storage regulations by the user.
• Wrongful actions against the unit committed by third parties.
• Unit breakdown due to circumstances of insuperable force (fire, flood, earthquake, war, hostilities of any kind, blockades).
• Missing seals if provided by the user’s manual.
• Failure to submit the user’s manual with the unit purchase date stamp.
• Missing payment paperwork certifying the unit purchase.

FOLLOWING THE REGULATIONS STIPULATED HEREIN WILL ENSURE A LONG AND TROUBLE- FREE OPERATION OF THE UNIT.
USER’S WARRANTY CLAIMS SHALL BE SUBJECT TO REVIEW ONLY UPON PRESENTATION OF THE UNIT, THE PAYMENT DOCUMENT AND THE USER’S MANUAL WITH THE PURCHASE DATE STAMP.

CERTIFICATE OF ACCEPTANCE

SELLER INFORMATION

Seller|
---|---
Address|
Phone Number|
E- mail|
Purchase 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|

INSTALLATION CERTIFICATE

The __  unit is installed pursuant to the requirements stated in the present user’s manual.

Company name|
Address|
Phone Number|
Installation Technician’s Full Name|
Installation Date:| Signature:
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:|

WARRANTY CARD

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