BLAUBERG KOMFORT ERV EC DB100 S14 User manual

Heat and Humidity recovery air Handling unit
USER’S MANUAL
EN
KOMFORT ERV EC DB100 S14
KOMFORT ERV EC DB150 S14
KOMFORT ERV EC DB250 S14
KOMFORT ERV EC DB350 S14

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CONTENTS
Safety requirements ......................................................................................................................................... 2
Purpose ..................................................................................................................................................................... 4
Delivery set ............................................................................................................................................................ 4
Designation key ................................................................................................................................................... 4
Technical data ...................................................................................................................................................... 5
Unit design and operating principle ...................................................................................................... 7
Mounting and set-up ...................................................................................................................................... 9
Connection to power mains ........................................................................................................................ 11
Unit control ............................................................................................................................................................. 12
Technical maintenance .................................................................................................................................... 14
Troubleshooting .................................................................................................................................................. 15
Storage and transportation regulations .............................................................................................. 15
Manufacturer’s warranty ................................................................................................................................ 16
Acceptance certificate ..................................................................................................................................... 17
Seller information ................................................................................................................................................ 17
Connection certificate ..................................................................................................................................... 17
Warranty card ........................................................................................................................................................ 17
This user’s manual consisting of the technical details, operating instructions and technical specification covers the installation and
mounting of the KOMFORT ERV EC DB S14 heat and humidity recovery air handling unit (hereinafter referred to as «the unit»).
SAFETY REQUIREMENTS
Read the user’s manual carefully prior to installing and operating the unit.
Fulfil the user’s manual requirements as well as the provisions of all the applicable local and national construction, electrical and technical norms and
standards.
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.
Symbol legend:
WARNING!
DO NOT!

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UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior to
any installation operations. • Unpack the unit with care.
• Do not lay the power cable of the unit in close
proximity to heating equipment.
• While installing the unit follow the safety
regulations specific to the use of electric tools.
• 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.
• 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 COLLECTED SEPARATELY AT THE END OF SERVICE LIFE.
DO NOT DISPOSE OF AS UNSORTED MUNICIPAL WASTE.

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PURPOSE
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.
The unit is designed to ensure continuous mechanical air exchange in houses, offices, hotels, cafés, 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 supply air.
THE UNIT MAY NOT BE OPERATED BY CHILDREN OR PERSONS WITH REDUCED PHYSICAL,
MENTAL OR SENSORY CAPACITIES, OR LACKING 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.
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).
DELIVERY SET
Name Number
Air handling unit 1 item
User's manual 1 item
Control panel 1 item
Mounting box for wall surface mounting 1 item
Mounting box for wall flush mounting 1 item
Packing box 1 item
DESIGNATION KEY
KOMFORT ERV EC DB X S14
Rated air capacity [m3/h]
Control panel
Motor type
EC: electronically commutated
Unit series
Casing type
D: suspended mounting, horizontal spigots
Heat exchanger type
ERV: heat and humidity recovery
Bypass

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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 80 %.
The unit is rated as a Class I electrical appliance.
Ingress protection rating for the unit connected to air ducts - IP22, for unit motors - IP44.
The unit design is constantly being improved, so some models may be slightly different from those ones described in this manual.
Technical data KOMFORT ERV
EC DB100 S14
KOMFORT ERV
EC DB150 S14
KOMFORT ERV
EC DB250 S14
KOMFORT ERV
EC DB350 S14
Unit voltage [V /50-60 Hz] 1~ 230
Maximum unit power [W] 66 70 84 150
Maximum unit current [A] 0.5 0.6 0.7 1.0
Maximum air capacity [m3/h] 170 180 300 400
RPM 2800 1925 2000 3200
Sound pressure level at 3 m
distance [dB(A)] 30 32 36 46
Transported air temperature [°C] from -25 up to +40
Casing material painted steel
Insulation foam rubber 5 mm, 10 mm
Extract air filter G4
Supply air filters G4 and F8 (PM2.5 93 %) G4 and F8 (PM2.5 93 %) G4 and F8 (PM2.5 83 %) G4 and F8 (PM2.5 87 %)
Connected air duct diameter [mm] Ø 100 Ø 100 Ø 150 Ø 150
Heat recovery efficiency [%] 70 - 82 68 - 82 63 - 73 68 - 85
Humidity recovery efficiency [%] 22 - 41 22 - 41 16 - 27 19 - 34
Heat exchanger type cross-flow
Heat exchanger material polymerized cellulose
Weight [kg] 17 26 29 42
Energy efficiency class A

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H1
H
A2
A1
A
B1 B2
ØD
B
L4
L2LL1
L3
L5
L2 L L1
L3
A B
A
B
Model Dimensions [mm]
Ø DA A1 A2 B B1 B2 H H1 L L1 L2 L3 L4 L5
KOMFORT ERV EC DB100 S14 99 734 601 423 479 522 570 204 226 310 90 80 10 92 112
KOMFORT ERV EC DB150 S14 99 947 854 676 704 743 793 227 247 480 92 128 25 113 113
KOMFORT ERV EC DB250 S14 149 947 854 676 704 743 793 227 247 480 92 128 25 113 88
KOMFORT ERV EC DB350 S14 149 1117 1024 846 754 793 843 277 297 488 109 153 50 88 138
R1,5
OUTOUT OUT IN
+RxTx
-
86
58
39
21
11,2
86
4
62,3
52
Control panel
The sensor panel contains touch buttons for unit control and an
emergency indicator.
Unit voltage 8-30 V
Temperature range from 0 °C up to +45 °C
Service life 100 000 switching operations
Ingress protection IP30
Weight 150 g
Humidity range from 5 to 80 (no condensation)

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UNIT DESIGN AND OPERATING PRINCIPLE
Supply fan
Exhaust fan
*Bypass damper
Extract lter
Control unit
Temperature sensor
for heat exchanger freezing protection
Electric lead-ins
Service side
Access door for inspection and maintenance
of the lters and heat exchanger
Cross-power heat exchanger
Intake lter
**Humidity sensor
Control panel
Power cable with a plug
The service panel is equipped with a detachable access door with manual bolts for cleaning or replacement of the filters and heat exchanger. The
control unit is positioned inside the unit casing. The power and the ground cable are to connect to the control unit through the airtight electric lead-in
in the unit casing side.
The plate enthalpy cross-flow heat exchanger is made of polymerized cellulose.
*The bypass damper is open or closed depending on operation mode of the unit.
**At the request of the customer the unit can be equipped with a humidity sensor. The humidity sensor is purchased separately as an accessory. The unit
with an installed humidity sensor maintains a set indoor humidity point. As the extract air humidity rises above the set point, the system automatically
switches to the maximum speed. As the humidity drops down below the set point the unit returns to the previous operation mode. Installation and
connection of the humidity sensor is carried out on site by the service technician.

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UNIT OPERATION MODES
Heat recovery: warm extract air from the room flows into the unit and is cleaned in the extract filter. Then the air is moved through the heat exchanger
and is exhausted outside with the extract fan.
Cold fresh air from outside flows into the unit, where it is cleaned in the supply filter. Then the air flows through the heat exchanger and is moved 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 allows to recover humidity as well as heat. In the summer period, the supplied fresh air is cooled and dried by the heat
exchanger, in the winter period it is heated and moisturized. The water vapour is devaporated from the stale wet air and absorbed with heat exchanger
plates. The released heat and moisture are transferred to the supply air. The transferring of dirt, odours and microorganisms from one air flow to another
is excluded.
EXTRACT AIR
SUPPLY AIR
INTAKE AIR
EXHAUST AIR
Defrosting mode: to prevent the heat exchanger freezing in the cold season the unit has an automatic Defrosting mode according to the freeze
protection temperature sensor readings in the exhaust air duct downstream of the heat exchanger. The unit switches to the defrosting mode at the
extract air temperature +3 °C. As the temperature rises the unit returns to the previous mode. Only the extract fan operates in the defrosting mode, the
supply fan is switched off.
EXTRACT AIR
SUPPLY AIR
INTAKE AIR
EXHAUST AIR
Summer Cooling mode: in the units with a bypass damper, the part of the intake air that is supplied to the premises bypasses the heat exchanger, the
bypass damper is opened and the outdoor air supply temperature changes slightly.
EXTRACT AIR
SUPPLY AIR
INTAKE AIR
EXHAUST AIR

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MOUNTING AND SETUP
THE UNIT MUST BE MOUNTED BY A QUALIFIED EXPERT ONLY, PROPERLY TRAINED
AND HAVING THE REQUIRED TOOLS AND MATERIALS.
HUMIDITY SENSOR MOUNTING
The humidity sensor is not included in the scope of delivery and can be ordered separately.
The humidity sensor must be installed prior to unit mounting. Unit mounting sequence:
• Remove the mounting screws of the service side panel of the unit and take it off.
• Install the humidity sensor into the mount from the side of the extract air duct and connect the humidity sensor contact socket to the respective
contact socket coming from the control unit, refer to the External wiring diagram.
• Install the sensor cover back.
UNIT MOUNTING
The unit is designed for ceiling mounting with anchor threaded bolts, nuts and vibration-absorbing rubber. Fasteners for unit 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 the service technician.
Before mounting make sure that the casing is free of any foreign objects like film or paper.
While installing the unit ensure convenient access for subsequent maintenance and repair.
Minimum required distance from the unit to the ceiling is 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 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 fans the
spigots may be covered with a protecting grille or other protecting device with mesh width not more than 12.5 mm.
Washer
Nut
Threaded bolt
Vibration absorbing
rubber
min 20 mm

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CONTROL PANEL MOUNTING
MAKE SURE THAT THE CONTROL PANEL IS NOT DAMAGED. DO NOT USE A DAMAGED
CONTROL PANEL! DO NOT INSTALL THE CONTROL PANEL ON AN UNEVEN SURFACE! WHILE
TIGHTENING THE SCREWS, DO NOT APPLY EXCESSIVE FORCE TO PREVENT THE CONTROL
PANEL CASING DEFORMATION.
Control panel wall ush mounting
1. Prepare a hole in the wall and route
all the wires to the installation place.
Insert the supplied mounting box for
flush wall mounting.
The mounting box is included in
delivery.
2. Use a screwdriver to carefully undo
the clips on the bottom edge of the
control panel and remove the back
cover.
3. Screw the backside of the casing
to the mounting box through the
fastening holes. Fastening screws for
mounting of the control panel are
included in the control panel delivery
set. Then connect the cable to the
control panel in compliance with
external wiring diagram.
4. Install the control panel display and
press it to fix.
Control panel wall surface mounting:
1. Route the required wires and cables
to the control panel installation place.
Drill the fastening holes in the wall
and screw the mounting box. The
mounting box is included in the
scope of delivery. Fastening screws
for fixation of the mounting box are
available separately.
2. Use a screwdriver to carefully undo
the clips on the bottom edge of the
control panel and remove the back
cover.
3. Screw the backside of the casing
to the mounting box through the
fastening holes. Fastening screws for
mounting of the control panel are
included in the control panel delivery
set. Then connect the cable to the
control panel in compliance with
external wiring diagram.
4. Install the control panel display and
press it to fix.

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CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
INSTALLATION SHALL ONLY BE PERFORMED BY A PROFESSIONAL ELECTRICIAN QUALIFIED FOR
UNASSISTED OPERATIONS WITH ELECTRICAL INSTALLATIONS UP TO 1000 V AFTER CAREFUL STUDY
OF THE PRESENT USER’S MANUAL.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ONTHE MANUFACTURER’S LABEL.
ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WARRANTY LOSS.
DO NOT LAY THE CABLE IN CLOSE PROXIMITY TO THE CONTROL
PANEL CABLE! DO NOT COIL THE CABLE FROM THE CONTROL PANEL
IN LOOPS WHILE LAYING IT.
The unit is rated for connection to single-phase ac 230 V/50 (60) Hz.
Connect the unit to power mains using the pre-wired power cord with the Euro Plug XP. Connection is made through the external automatic circuit
breaker with magnetic trip integrated into the fixed wiring system. The rated current of the circuit breaker must not be below the unit current
consumption. The position of the automatic circuit breaker must ensure free access for quick power-off of the unit. The trip current must be not less
than the consumption current, refer to Technical data.
The control panel is connected to the unit by the manufacturer. A reconnection is possible. Technical requirements to a cable for connection of the
control panel to the unit: type - 4x0.25 mm2, length - up to 10 m.
To access the control unit, remove the mounting screws of the service side panel of the unit and take it off.
The unit has an option of connection of additional external controls. The unit must be connected to power mains using durable, insulated and heat-
resistant conductors (cables and wires) with minimum cross section not less than 1 mm2. Extra connected control units are not included in the delivery
set and must be ordered separately. They are shown in dotted lines in the External wiring diagram.
• PK: connection of the automatic fire extinguishing system contact.
Upon connecting the automatic fire extinguishing system contact remove the jumper between the terminals 11 and 12. The connection is
made through the normally closed dry contact that breaks the control circuit from the central fire-fighting board and cuts off power supply
to the unit.
• Connection of the external control unit contact, such as CO2sensor (NO, C).
Connect the CO2sensor to the 16 and 17 terminals. The connection is established by using a normally closed dry contact. If the dry contact is
closed, the unit turns to the maximum speed.
• FS2 (+U, 0-10V, GND) humidity sensor connection.
Connect the FS2 humidity sensor (not included in the delivery, can be ordered separately) to the contact socket in accordance with the
External wiring diagram.
• Connection of outer air dampers (SM1 supply air damper, SM2 exhaust air damper).
The air dampers and the actuator are not included in the delivery and can be purchased separately. For controlling the air dampers use the LF
230 BELIMO electric actuator with a voltage of 230 V and an open-close controlling. Connect the electric actuators to the 22 and 23 terminals.

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External wiring diagram
PK re alarm panel
(remove the jumper while
connecting the contact)
L
SM-N SM-L +U Rx TX GND CNO GND 0-10V +U PK PK PE N
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
SM-N SM-L +U Rx TX GND CNO GND 0-10V +U PK PK PE N
78
230 V / 50(60) Hz
XP
X1
QF
Control
panel
- TxRx+
White
Brown
Green
Yellow
Electric actuators
of outer air dampers
SM1
supply
N L1
SM2
exhaust
N L1
NO contact
of an external
control unit
(СО
2
sensor).
GND 0-10V +U
Humidity
sensor
1 2 3
6
6
5
5
3
3
2
2
4
4
1
1
L6 5 3 2
4
1
UNIT CONTROL
OPERATION USING SOFTWARE
To work with the pre-installed software connect the unit to a laptop or to a PC via a USB cable with the Type A and Type B contact sockets.
The USB cable is not included in the delivery.
USB Type A
USB Type B
The software enables editing the unit parameters:
Parameter Factory setting Adjustment range
Zero speed (the unit is off) [%] 0 0 - 100
Low speed [%] 40 0 - 100
Medium speed [%] 70 0 - 100
High speed [%] 100 0 - 100
Unit speed with the closed dry contact of the external control unit [%] 100 0 - 100
Filter cleaning (replacement) interval [h] 2160 (3 months) 0 - 10000
Humidity level [%] 60 30 - 80
The list of the adjustable parameters can be expanded in new versions of the software.
Setting, troubleshooting and upgrading of the software version is made by the service technician.
To download the software follow the link https://blaubergventilatoren.de/en/download.
Select the document type“Software”and then using the search bar find the software for the automation S14. Download the software file.

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CONTROL PANEL
The unit is operated from the wall-mounted control panel by using the touch buttons. The selected button will be highlighted. The signal from the
control panel is received by the controller and it switches the unit to a selected operation mode.
The control panel is not designed for independent operation.
WARNING!
The control panel must be fixed on a surface in operational position!
Do not switch the buttons on the unsecured panel to avoid false speed switching!
Pressing the buttons quickly and shortly may result in malfunction of the unit!
Press the button precisely in the desired sector of the control panel to switch the speed.
Touch button
Low speed Emergency indicator
Touch button
High speed
Touch button
Medium speed
Touch button
Filter maintenance
Touch button
Controlling the bypass damper.
Indication variants when the unit is o:
• The touch buttons on the control panel are not highlighted.
• Filter maintenance indicator and emergency indicator are highlighted in the respective cases.
Unit activation:
Press one of three speed setting buttons. The selected button will be highlighted and the unit switches to the required
speed.
Speed changeover:
Press the inactive speed setting button once. The selected button will be highlighted and the unit will switch to the
required speed.
Unit deactivation:
To turn the unit off press the highlighted speed setting button.
Summer Cooling mode:
Press the touch button once. When the touch button is activated the display lights up, the bypass damper opens and the
unit switches to the Summer cooling mode.
Each time a touch button is pressed, the current unit status is changed and saved in the control panel memory.
Filter maintenance:
As the unit reaches the set value of operating hours, the touch button is highlighted to remind about cleaning or
replacing of the filters.
To reset the motor meter after replacement or cleaning of the filters press and hold the filter replacement indicator for
5 seconds. After resetting the motor meter the filter replacement indicator goes down.
When customizing the timer software for setting the number of hours refer to Filter maintenance section.
Alarm:
In case of alarm, the alarm indicator is highlighted.
To reset the alarm refer to the Troubleshooting section.

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TECHNICAL MAINTENANCE
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY MAINTENANCE OPERATIONS.
THE CONTROL UNIT MAINTENANCE MUST BE PERFORMED BY AN EXPERT QUALIFIED FOR
UNASSISTED OPERATIONS WITH ELECTRICAL INSTALLATIONS WITH THE VOLTAGE UP TO 1000 V
AFTER CAREFUL READING OF THE USER’S MANUAL.
The unit must undergo technical maintenance 3 to 4 times a year.
Maintenance includes 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.
The filters require replacing not less than 3-4 times per year.
To replace the filters, open the access door on the service panel and remove the dirty filters,
then install new filters and close the access door.
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 the high heat exchange efficiency, regular heat exchanger vacuum cleaning using
a crevice nozzle is recommended.
To replace the heat exchanger, open the access door and remove the dirty exchanger from
the unit.
Then install new heat exchanger and close the access door.
For a new heat exchanger contact the Seller.
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 air flow. 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. To access the control unit, remove the mounting screws of the service panel of the unit and take
it off.

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TROUBLESHOOTING
Problem Possible reasons Troubleshooting
The fan(s) do(es) not get started. The unit is disconnected from network. Make sure the power 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 clogged 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 fans or the casing
against stop.
The control panel displays an
alarm indicator — .
Communication loss in connecting cable
or wires between the control panel and
the unit.
Make sure the connection cable and wires connecting the
control panel with the air handling unit are intact using a
multimeter instrument.
If you cannot troubleshoot a problem on your own please
contact the Seller.
Wrong cable installing.
Make sure the cable installation is completed according to
the requirements stated on page 12.
Otherwise install the cable as required.
STORAGE AND TRANSPORTATION REGULATIONS
Store the unit in the manufacturer’s original packing box in a dry closed ventilated premise with temperature range from +5 °C to + 40 °C. Storage
environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation and sealing deformation.
The unit can be carried in the original packing by any mode of transport provided proper protection against precipitation and mechanical damage.
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.
Avoid sharp blows, scratches or rough handling during loading and unloading.
Do not expose the unit to sudden changes in temperature. Such changes can lead to condensation of moisture inside the unit and performance
disturbance when the unit is switched on.
Prior to the initial power-up after transportation at subzero temperatures allow the unit to warm up at room temperature for at least 2 hours.

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MANUFACTURER’S WARRANTY
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, mounting 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 elimination of faults by the manufacturer by means of warranty repair at the factory free of charge.
The warranty repair shall include work specific to 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 by means of replacement or repair of the unit components or a specific part of such unit component.
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 document 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 packing 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.
• User’s violation of the unit installation regulations.
• User’s violation of the unit control regulations.
• Unit connection to the power mains with a voltage different from the one stated in the user’s manual.
• Unit breakdown due to voltage surges in the 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.
• User’s violation of the unit transportation regulations.
• User’s violation of the unit storage regulations.
• 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 document certifying the unit purchase.
FOLLOWING THE REGULATIONS STIPULATED HEREIN WILL ENSURE A LONG
AND TROUBLEFREE OPERATION OF THE UNIT.
USERS’CLAIMS SHALL BE A SUBJECT TO REVIEW ONLY UPON PRESENTATION OF THE UNIT,
THE PAYMENT DOCUMENT AND THE USER’S MANUAL WITH THE SALE DATE STAMP.

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ACCEPTANCE CERTIFICATE
Unit Type Heat and humidity recovery air handling unit
Model KOMFORT ERV EC DB ________ S14
Serial Number
Manufacture Date
The unit is recognized as serviceable.
Quality
Inspector’s Stamp
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
Seller’s Stamp
INSTALLATION CERTIFICATE
Installation Company Stamp
The unit has been connected to power mains pursuant to the requirements stated in the present user’s manual.
Company Name
Address
Phone Number
Expert'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
Seller’s Stamp
Unit Type Heat and humidity recovery air handling unit
Model KOMFORT ERV EC DB ________ S14
Serial Number
Manufacture Date
Purchase Date
Warranty Period
Seller

www.blaubergventilatoren.de KomFort erv ec dB100/150/250/350 S14
18

www.blaubergventilatoren.de
KomFort erv ec dB100/150/250/350 S14
19

www.blaubergventilatoren.de
B146EN_02