BLAUBERG Freshbox 100 WiFi Bedienungsanleitung

HEAT RECOVERY AIR HANDLING UNIT

USER’S MANUAL

Freshbox 100 WiFi

www.blaubergventilatoren.de

CONTENTS

Safety requirements..................................................................................................................................................................... 3

Purpose................................................................................................................................................................................................ 5

Delivery set........................................................................................................................................................................................ 5

Designation key.............................................................................................................................................................................. 5

Technical data.................................................................................................................................................................................. 6

Design and operating principle ........................................................................................................................................... 7

Installation and set-up................................................................................................................................................................ 8

Connection to power mains .................................................................................................................................................. 12

Control ................................................................................................................................................................................................. 13

Technical maintenance.............................................................................................................................................................. 17

Troubleshooting............................................................................................................................................................................. 18

Storage and transportation regulations.......................................................................................................................... 18

Manufacturer’s warranty........................................................................................................................................................... 19

Certiﬁcate of acceptance.......................................................................................................................................................... 20

Seller information.......................................................................................................................................................................... 20

Installation certiﬁcate.................................................................................................................................................................. 20

Warranty card................................................................................................................................................................................... 20

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 Freshbox 100 WiFi

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.

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Freshbox 100 WiFi

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.

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.

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 appliance may adversely aﬀect the safe operation of appliances burning gas or other

fuels (including those in other rooms) due to back ﬂow of combustion gases. These gases can

potentially result in carbon monoxide poisoning. After installation of the unit the operation

of ﬂued gas appliances should be tested by a competent person to ensure that back ﬂow of

combustion gases does not occur.

SAFETY REQUIREMENTS

Freshbox 100 WiFi

www.blaubergventilatoren.de

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.

Connection of the unit to power mains is allowed by a qualiﬁed electrician with a work permit

for the electric units up to 1000 V after careful reading of the present user’s manual.

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

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Freshbox 100 WiFi

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

DESIGNATION KEY

NAME NUMBER

Air handling unit 1 pc.

User’s manual 1 pc.

Mounting template 1 pc.

Fastening kit 1 pc.

Magnetic sheet 1 pc.

Key 1 pc.

Spigot 1 pc.

Packing box 1 pc.

Freshbox E - 100 ERV WiFi

Equipped with a Wi-Fi module

Heat exchanger type

_: heat recovery

ERV: heat and humidity recovery

Rated air ow [m3/h]

Heater

_: without heater

E: preheating

E1: reheating

E2: preheating and reheating

Series

Freshbox 100 WiFi

www.blaubergventilatoren.de

Parameter Freshbox 100 WiFi Freshbox E-100 WiFi Freshbox E1-100 WiFi Freshbox E2-100 WiFi

Speed 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5

Maximum air capacity [m3/h] 30 44 60 75 100 30 44 60 75 100 30 44 60 75 100 30 44 60 75 100

Supply voltage [V/50 (60) Hz] 1~ 230

Maximum fan power [W] 20 23 29 37 53 20 23 29 37 53 20 23 29 37 53 20 23 29 37 53

Sound pressure level at 3 m distance [dBA] 13 20 27 33 39 13 20 27 33 39 13 20 27 33 39 13 20 27 33 39

Electric heater power [W] preheating - 700 - 700

reheating - - 350 350

Maximum unit current [A]

without an electric

heater 0.4 0.4 0.4 0.4

with an electric

heater - 3.6 1.94 5.2

Transported air temperature [°С] from -20 up to +40

Casing material painted steel

Insulation foam rubber, 10 mm

Heat recovery eﬃciency [%] 98 95 92 90 89 98 95 92 90 89 98 95 92 90 89 98 95 92 90 89

Heat exchanger type counter-ﬂow

Heat exchanger material polystyrene

Supply ﬁlter G4, F8 (option: F8 Carbon,

H13)

G4, F8 (option: F8 Carbon,

H13) G4 G4

Extract ﬁlter G4

Connected air duct diameter [mm] Ø 100

Weight [kg] 31 31 31 31

550

650

200

257

Ø100

3 holes

THE EXTRACT AIR TEMPERATURE SHOULD BE NO HIGHER THAN +40 °C AND RELATIVE

HUMIDITY SHOULD NOT EXCEED 70 % OVER THE ENTIRE TEMPERATURE RANGE.

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.

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Freshbox 100 WiFi

DESIGN AND OPERATING PRINCIPLE

Warm stale extract air from the room ﬂows to 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 outside ﬂows into the unit, where it is cleaned by the supply ﬁlter. Then ﬁltered air ﬂows through the heat exchanger

and is moved to the room with the supply fan.

Thermal energy of warm extract air is transferred to clean intake fresh air from outside and warms it up. The air ﬂows are fully separated.

Heat recovery minimizes heat losses, which reduces the cost of space heating in the cold season.

Depending on the model the unit is equipped with a supply air preheater or reheater with overheating protection.

Supply fan

G4 extract ﬁlter

G4 supply ﬁlter

Lock

Intake air preheater

(Freshbox E(E2)...)

Automatic supply

louvre shutters

Temperature sensor for heat exchanger freeze protection

Supply air temperature

sensor

(Freshbox E1(E2)...)

F8 supply ﬁlter

(Freshbox ..., Freshbox E...)

Reheater

(Freshbox E1(E2)...)

Counter-ﬂow heat exchanger

Control unit

Extract fan

Exhaust louvre shutters

with automatic drive

Control panel

Extract spigot for

a bathroom (optional)*

Extract grille

Supply spigot

Exhaust air duct

Drain pan

Outdoor temperature sensor

Limit switch

Humidity sensor or CO

sensor

(available separately)

Parameter Freshbox 100 ERV

WiFi

Freshbox E-100 ERV

WiFi

Freshbox E1-100 ERV

WiFi

Freshbox E2-100 ERV

WiFi

Speed 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5

Maximum air capacity [m3/h] 30 44 60 75 100 30 44 60 75 100 30 44 60 75 100 30 44 60 75 100

Supply voltage [V/50 (60) Hz] 1~ 230

Maximum fan power [W] 20 23 29 37 53 20 23 29 37 53 20 23 29 37 53 20 23 29 37 53

Sound pressure level at 3 m distance [dBA] 13 20 27 33 39 13 20 27 33 39 13 20 27 33 39 13 20 27 33 39

Electric heater power [W] preheating - 700 - 700

reheating - - 350 350

Maximum unit current [A]

without an electric

heater 0.4 0.4 0.4 0.4

with an electric

heater - 3.6 1.94 5.2

Transported air temperature [°С] from -20 up to +40

Casing material painted steel

Insulation foam rubber, 10 mm

Heat recovery eﬃciency [%] 96 94 89 85 83 96 94 89 85 83 96 94 89 85 83 96 94 89 85 83

Heat exchanger type counter-ﬂow

Heat exchanger material enthalpy membrane

Supply ﬁlter G4, F8 (option: F8 Carbon,

H13)

G4, F8 (option: F8 Carbon,

H13) G4 G4

Extract ﬁlter G4

Connected air duct diameter [mm] Ø 100

Weight [kg] 31 31 31 31

Freshbox 100 WiFi

www.blaubergventilatoren.de

INSTALLATION AND SETUP

The Freshbox E-100 WiFi, Freshbox E2-100 WiFi units are equipped with a preheater.

The preheater is located upstream of the heat exchanger and is designed for its freeze protection.

The Freshbox E1-100 WiFi, Freshbox E2-100 WiFi units are equipped with a reheater.

The reheater is located downstream of the heat exchanger and is designed for extra heating of supply air to more comfortable temperature.

When the intake air temperature is below -3 °C, the preheater automatically warms up intake air so the average exhaust air temperature

downstream of the heat exchanger is not below +5 °C.

The reheater is switched on and oﬀ by means of a button on a sensor control panel, a remote control or via mobile application.

The heat exchanger freeze protection in Freshbox 100 WiFi and Freshbox E1-100 WiFi unit models without a preheater is achieved by

automatic supply fan speed reduction according to extract air sensor readings.

The extract fan runs at maximum speed.

Temperature diﬀerences between supply and extract air ﬂows in units with polystyrene heat exchangers lead to condensate formation.

Condensate is collected in the drain pan and is removed outside by the drain pipes through the exhaust air duct.

Condensate is not formed in units equipped with an enthalpy heat exchanger as moisture is transferred from one air ﬂow to another

through a membrane.

The louvre shutters open automatically when the motors are switched on and close when the motors are switched oﬀ.

*An additional extract spigot can be ﬁtted to the unit to connect the exhaust air duct from additional premises, e.g. a bathroom.

The spigot is included in the delivery set.

READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT.

Minimum distances from the unit to the surfaces

min 300 mm min 300 mm

WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT

MAINTENANCE AND REPAIR.

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Freshbox 100 WiFi

2 holes (Ø 120 mm) for an air duct Ø 100 mm

Fill the gaps between the wall and

the air ducts with a mounting foam

4 holes (Ø 8 and 90 mm deep)

in the wall made using

a mounting template

Power cable entry

2 holes (Ø 120 mm) for an air duct Ø 100 mm

Fill the gaps between the wall and

the air ducts with a mounting foam

4 holes in the wall

Ø 8 and 90 mm deep

416.5

647

205

162

468.5 102.576

400

73.5

547

230

170 188.5

158.5

ADDITIONAL HOLE!

DRILL UPON CUSTOMER’S REQUEST ONLY!

Ø 120 mm hole for Ø 100 mm air duct

Fill the gaps between the wall and the air ducts

with a mounting foam

ADDITIONAL HOLE!

DRILL UPON CUSTOMER’S REQUEST ONLY!

Ø 120 mm hole for Ø 100 mm air duct

Fill the gaps between the wall and the air ducts

with a mounting foam

Hole spacing template

THE UNIT MUST BE MOUNTED ON A PLANE SURFACE.

MOUNTING OF THE UNIT TO AN UNEVEN SURFACE CAN LEAD TO THE UNIT CASING

DISTORTION AND OPERATION DISTURBANCE.

BEFORE MOUNTING MAKE SURE THE CASING DOES NOT CONTAIN ANY FOREIGN

OBJECTS E.G. FOIL, PAPER.

1. Mark and drill holes in the wall using a mounting

template.

Fix the mounting template at the required level on

the wall with a self-adhesive tape.

Using a mounting template make marks to drill holes

for air ducts, for unit mounting and for power cable

entry.

Before installation operations route necessary cables

and wires to the unit mounting place.

Unit mounting

Freshbox 100 WiFi

www.blaubergventilatoren.de

2.1. Remove the mounting template and drill two

through holes Ø 120 mm for round air ducts.

When mounting the unit with an additional extract

spigot prepare a hole in the wall for a connecting

bend and for laying of a rectangular air duct.

A connecting bend, rectangular and round air ducts

are available separately. Drill holes (Ø 8 mm,

90 mm deep) to mount the unit. Install the expansion

anchors, remove the perforated ﬁllers for the air ducts

from the mounting template and install the mounting

template back using a self-adhesive tape.

2.2. Cut air ducts of required length. Note that the

telescopic air duct end must protrude for the distance

that enables installation of the outer ventilation hood.

For details, refer to the installation instruction for the

ventilation hood.

The outer ventilation hood is available separately.

3. Fix the mounting template on the wall to install the

air ducts.

Insert the air ducts in the corresponding holes of the

mounting template.

Install the air duct with the minimum slope of 3 mm

for condensate removal.

To install the unit with an additional spigot, insert the

connecting bend into the prepared hole in the wall,

aligning the mounting template hole with a round

end of the connecting bend.

Connect a rectangular duct to the connecting bend.

4. Fill the spaces between the air ducts and the wall

with a mounting foam through the specially designed

holes in the mounting template.

Wait till the mounting foam hardens then take oﬀ the

mounting template and remove the foam excess.

Cut oﬀ the protruding air duct parts to be ﬂush with

the wall surface.

min 3 мм

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