BLAUBERG Ventilatoren Box-S User manual

DUCT RECTANGULAR SMOKE EXTRACTION FAN
USER’S MANUAL
EN
Box-S

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CONTENTS
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 Box-S 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.
The information in this user’s manual is 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.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means in any information
search system or translated into any language in any form without the prior written permission of the Company.
Safety requirements..................................................................................................................................................................... 2
Purpose................................................................................................................................................................................................ 4
Delivery set........................................................................................................................................................................................ 4
Designation key.............................................................................................................................................................................. 4
Technical data.................................................................................................................................................................................. 5
Design and operating principle ........................................................................................................................................... 6
Mounting and set-up.................................................................................................................................................................. 7
Connection to power mains .................................................................................................................................................. 8
Commissioning............................................................................................................................................................................... 10
Technical maintenance.............................................................................................................................................................. 11
Troubleshooting ........................................................................................................................................................................... 12
Storage and transportation regulations.......................................................................................................................... 13
Manufacturer’s warranty........................................................................................................................................................... 14
Certificate of acceptance.......................................................................................................................................................... 15
Seller information.......................................................................................................................................................................... 15
Installation certificate.................................................................................................................................................................. 15
Warranty card................................................................................................................................................................................... 15
SAFETY REQUIREMENTS
• Please read the user’s manual carefully prior to installing and operating 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.
• 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.

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THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.
UNIT INSTALLATION AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior to any installation operations.
• Unpack the unit with care.
• The unit must be grounded!
• While installing the unit, follow the safety regulations specific to the use of electric tools.
• Do not change the power cable length at your own discretion.
• Do not bend the power cable.
• Avoid damaging the power cable.
• Do not put any foreign objects on the power cable.
• Do not lay the power cable of the unit in close proximity to heating equipment.
• 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.
• The unit is allowed to be used by children aged from 8 years oldand above and persons with
reduced physical, sensory, or mental capabilities or no experience and knowledge provided
that they have been given supervision or instruction regarding safe use of the unit and
understand the risks involved.
• 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.

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NAME NUMBER
Fan 1 pc.
User’s manual 1 pc.
Packing box 1 pc.
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 UNAUTHORIZED
ACCESS BY UNATTENDED CHILDREN.
Duct rectangular smoke extraction fan is used in emergency exhaust ventilation systems for forced removal of smoke, heated gases
and combustion products, as well as for general exhaust ventilation of shopping centres, garages, warehouses, and kitchens with the
mandatory use of grease filters. The unit is a component part and is not designed for independent operation.
The unit 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).
PURPOSE
DELIVERY SET
DESIGNATION KEY
Designation example: Box-S 25 -2/4E / 0.37/0.1 -50x30
Series name
Duct rectangular smoke extraction fan
Impeller standard size [cm]
25; 28; 31; 35; 40; 45; 50; 56; 63; 71
Pole number
2; 4; 6 (single-speed electric motor)
2/4; 4/6; 4/8 (two-speed electric motor)
Number of phases
E: single-phase
D: three-phase
Motor power [kW]
X (single-speed electric motor)
XxX (two-speed electric motor)
Spigot dimension [cm]
50x30; 60x30; 60x40; 70x40; 80x50; 90x60; 100x70; 120x80

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The unit is designed for application with the ambient temperature ranging from -20 °C up to +40 °C and relative humidity up to 80 %.
The fan is designed to remove smoke and air mixtures up to +400 °C for 120 minutes and for continuous operation at a temperature of the
transported medium up to +100 °C.
The unit is rated as a Class I electrical appliance.
Motor protection degree according to IEC 60034-5 – IP55.
The unit design is constantly being improved, thus some models may be slightly different from those described in this manual.
TECHNICAL DATA
Standard
size
Number of
poles
Voltage [V] at
50 Hz Fan model Installed motor power [kW] RPM [min-1]
25
2 1~230 Box-S 25-2E/0.37-50x30 0.37 2880
2 3~400 Box-S 25-2D/0.37-50x30 0.37 2880
2/4 3~400 Box-S 25-2/4D/0.37/0.1-50x30 0.37/0.1 2880/1440
28
2 1~230 Box-S 28-2E/0.55-60x30 0.55 2880
2 3~400 Box-S 28-2D/0.55-60x30 0.55 2880
2/4 3~400 Box-S 28-2/4D/0.55/0.1-60x30 0.55/0.1 2880/1440
31
2 1~230 Box-S 31-2E/1.1-60x350 1.1 2880
2 3~400 Box-S 31-2D/1.1-60x350 1.1 2880
2/4 3~400 Box-S 31-2/4D/1.1/0.25-60x350 1.1/0.25 2880/1440
35
4 1~230 Box-S 35-4E/0.37-70x40 0.37 1420
4 3~400 Box-S 35-4D/0.37-70x40 0.37 1420
4/6 3~400 Box-S 35-4/6D/0.55/0.1-70x40 0.55/0.1 1420/905
40
4 1~230 Box-S 40-4E/0.55-70x40 0.55 1420
4 3~400 Box-S 40-4D/0.55-70x40 0.55 1420
4/6 3~400 Box-S 40-4/6D/0.55/0.25-70x40 0.55/0.25 1420/905
45
4 1~230 Box-S 45-4E/0.75-80x50 0.75 1435
4 3~400 Box-S 45-4D/0.75-80x50 0.75 1435
4/6 3~400 Box-S 45-4/6D/0.8/0.2-80x50 0.8/0.2 1435/905
50
4 1~230 Box-S 50-4E/1.5-80x50 1.5 1430
4 3~400 Box-S 50-4D/1.5-80x50 1.5 1430
4/6 3~400 Box-S 50-4/6D/1.5/0.37-80x50 1.5/0.37 1430/920
56
4 1~230 Box-S 56-4E/3-90x60 3 1435
4 3~400 Box-S 56-4D/3-90x60 3 1435
4/6 3~400 Box-S 56-4/6D/2.8/0.7-90x60 2.8/0.7 1435/950
4/8 3~400 Box-S 56-4/8D/2.8/0.55-90x60 2.8/0.55 1435/710
63
4 3~400 Box-S 63-4D/4-100x70 4 1445
4/6 3~400 Box-S 63-4/6D/3.8/1-100x70 3.8/1 1445/950
4/8 3~400 Box-S 63-4/8D/3.8/0.75-100x70 3.8/0.75 1445/720
71
4 3~400 Box-S 71-4D/7.5-120x80 7.5 1455
4/6 3~400 Box-S 71-4/6D/7.5/2.2-120x80 7.5/2.2 1455/960
4/8 3~400 Box-S 71-4/8D/7.5/1-120x80 7.5/1 1455/720

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DESIGN AND OPERATING PRINCIPLE
The fan casing is made of galvanized steel.
For periodic inspections, inspection hatches are provided on the fan
casing.
The electric motor is installed outside the air flow.
The impeller with backward curved blades made of heat-resisting
steel.
To control the speed, the fan can be equipped with a frequency
converter (not included in the delivery set, ordered separately)
Model Dimensions [mm] Weight
[kg]
AA1 A2 BB1 B2 L H
Box-S 25 500 520 540 300 320 340 680 557 40
Box-S 28 600 620 640 300 320 340 680 558 40
Box-S 31 600 620 640 350 370 390 680 624 56
Box-S 35 700 720 740 400 420 440 680 657 51
Box-S 40 700 720 740 400 420 440 680 674 64
Box-S 45 800 820 840 500 520 540 800 772 85
Box-S 50 800 820 840 500 520 540 840 813 94
Box-S 56 900 920 940 600 620 640 840 959 96
Box-S 63 1000 1020 1040 700 720 740 1040 1050 125
Box-S 71 1200 1220 1240 800 820 840 1040 1255 171
L
H
ø 9
B 2 B 1
B
A 2
A 1
A

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WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT
MAINTENANCE AND REPAIR.
BEFORE MOUNTING MAKE SURE THE CASING DOES NOT CONTAIN ANY FOREIGN
OBJECTS E.G. FOIL, PAPER.
Prior to mounting the unit:
• Make sure that the fan impeller rotates freely.
• Make sure there is no condensation on the motor.
• Check the electrical resistance of insulation between the motor windings and between each winding and the motor frame.
After installing the unit make sure that the fan impeller rotates freely.
The fan is installed between rectangular air ducts.
Connect the fan to air ducts with bolts and nuts.
The fan must be fixed on independent hangers so that it does not press the flexible joint (purchased separately) or the air duct.
It is recommended to suspend the fan to the ceiling using steel reinforcement and threaded rods, or using perforated galvanized plates
and connecting them to the fan flanges or to an auxiliary structure.
The fan may be installed in any position in consideration of the air flow direction (indicated by the arrow on the fan casing).
When placed under the ceiling to access the terminal box and motor, it is desirable to install the fan with the motor downwards.
Install a flexible joint (purchased separately) on both sides of the fan.
To protect the fan and air duct from dust, it is recommended to install a filter upstream of the fan (purchased separately).
If the fan is mounted so that a person or object can come into contact with the impeller, a protective grille must be installed (purchased
separately).
It is recommended to install a 1.5 m long straight air duct at the fan outlet.
MOUNTING AND SETUP

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• The unit is rated for connection to 1~230 V/50 Hz or 3~400 V/50 Hz power mains according to the wiring diagram. The wiring diagram
is located inside the electric motor terminal box.
• The connection must be made using durable, insulated and heat-resistant 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.
• Connection of the unit to the fixed power supply network must be carried out in accordance with the current regulations.
Access to the terminal box
Impeller rotation direction
Air flow direction
CONNECTION TO POWER MAINS
DISCONNECT THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
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.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.

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ASYNCHRONOUS ELECTRIC MOTOR STARTING METHODS
There are several methods for starting asynchronous squirrel-cage electric motors.
The most common methods are: direct-on-line (DOL), with a soft starter (SS) or with a frequency converter (FC).
Direct-on-line starting
In case of direct-on-line starting (i.e. by connecting the motor to the electric mains with a simple line contactor), the motor starting
time significantly increases due to high inertia of the impeller, which, in turn, results in high in-rush starting currents in the circuit. These
currents of long duration may cause voltage slumps (especially if the feed line section falls short of the requirements), which may affect
load operation.
The in-rush current consumed by an electric motor in case of DOL starting is 5-8 times larger than the rated value (or even 10-14 times
larger in some rare instances). It should be noted that the torque developed by the motor also significantly exceeds the rated value.
Upon energisation the motor operates as a transformer with a squirrel-cage secondary winding formed by the rotor cage with a very low
resistance.
The rotor develops high induced current causing a rush of current in the feed line.
The startup torque during starting averages 0.5-1.5 of the rated torque value.
Despite such advantages as simple construction, high startup current, quick start and low cost, direct-on-line systems are suitable only
in the following cases:
• the motor power is low compared to the mains power which limits the adverse effect of the rush of current
• the driven mechanism does not require gradual speed build-up or is equipped with a damping device to smooth out the inrush
• the high startup torque has no adverse effects on the operation of the driven mechanism
Soft start. SS starting.
A soft starter gradually increases the voltage supplied to the motor – from the initial to the rated value.
This starting system can be used to meet the following goals:
• limit the motor current
• regulate the torque
Regulation by limiting the current sets the maximum in-rush current equal to 300-400 % (or 250 % in some rare instances) of the rated
current and reduces torque characteristics. This type of regulation is especially suited for turbomachinery such as centrifugal pumps and
fans.
Regulation by variation of torque optimizes the torque during startup and reduces in-rush current in the circuit. These conditions are
suitable for mechanisms with constant load resistance.
This type of soft starting may differ in the implementation pattern:
• motor start
• motor start and stop
• device bridging at the end of start sequence
• start and stop of several motors in stage circuits
Soft start. FC starting.
During the starting the FC raises the frequency from 0 Hz to the electrical mains frequency (50 or 60 Hz). As the frequency is increased
gradually, the motor can be assumed to operate at its rated speed for a given frequency value. Furthermore, on the assumption that the
motor runs at its rated speed the nominal torque should be immediately available whereas the current will be approximately equal to
the rated value.
This starting system is used for speed control and regulation and can be used in the following cases:
• start with high-inertia load
• start with high load and limited-capacity power supply source
• optimization of electric power consumption depending on turbomachinery speed
The aforementioned starting system can be used for all types of mechanisms.
Problems associated with DOL starting
The problems caused by DOL starting may be divided into two groups:
1. An abrupt start causes mechanical shock, jolts in the mechanism, shock removal of free play etc.
2. A heavy start cannot be completed.

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COMMISSIONING
THE ORGANISATION RESPONSIBLE FOR THE COMMISSIONING SHALL BE RESPONSIBLE
FOR PROPER MOTOR PHASING AND STARTING PATTERN SELECTION.
• After fan starting make sure that the electric motor rotates properly without undue vibration and abnormal noise.
• Make sure that the fan impeller rotates in the direction marked by the arrow on the fan casing. If necessary, change the rotation
direction of the impeller by reversing the phase sequence (for a three-phase motor) or by rewiring according to the wiring diagram
located inside the terminal box (for a single-phase motor).
• Make sure that the fan energy consumption complies with the value given on the equipment nameplate and check the motor for
overheating.
• The phase current should be checked once the fan reaches the rated operating conditions.
• Do not switch the fan on and off several times without pauses as this may result in damage to the winding or insulation due to
overheating.
DURING STARTING THE INRUSH CURRENTS OF THE FAN MAY SEVERAL TIMES EXCEED
THE RATED VALUES.
SEE“ASYNCHRONOUS ELECTRIC MOTOR STARTING METHODS”IN THE“CONNECTION
TO POWER MAINS” SECTION
Let us review three variations of a heavy start:
1. The feed line performance is barely sufficient or insufficient to maintain the induced current.
Typical symptoms: Upon starting the circuit breakers at the system input are tripped; the lights, certain relays and contactors go off,
and the supply generator shuts down.
Solution: In the best-case scenario an SS device may help reduce the in-rush current to 250 % of the motor rated current. If this is
insufficient, an FC is necessary.
2. The motor cannot start the mechanism with DOL starting.
Typical symptoms: The motor fails to turn or “freezes” at certain speed which is maintained until actuation of the protection suite.
Solution: This problem may not be solved with an SS device. The motor develops insufficient shaft torque. However, this problem can
be addressed by using an FC, but each case may be different.
3. The motor spins up the mechanism with authority, but fails to reach the rated rotation speed.
Typical symptoms: The input automatic circuit breaker is tripped during spin-up. This often happens with heavy-weight fans with a
considerable rotation speed.
Solution: Such problems may be addressed with an SS device, but not with 100 % certainty. The closer the motor speed to the rated
value during the actuation of the protective equipment, the higher the chances of success. The use of an FC in this case helps solve the
problem fundamentally.
Standard switching equipment (automatic circuit breakers, contactors and motor starters) is not designed to withstand
prolonged overloads normally causing the fan to shut down automatically DOL starting that continues for a long period of
time.
Using switching equipment with a higher maximum current rating renders the electric motor protection system less sensitive.
As a result the switching equipment will not be able to detect motor overload in time due to a high current sensing threshold.
Such problems as mentioned above can only be addressed by utilizing a soft starter or a frequency converter to start the fan.

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The technical maintenance includes periodic cleaning of the surfaces from accumulated dust and dirt.
Use a soft dry brush or compressed air to remove dust from metal parts of the fan.
The impeller blades require thorough cleaning once in 6 months.
Detach air ducts from the fan before starting maintenance works.
Clean the impeller blades with a soft cloth wetted in mild water detergent solution. Avoid liquid dripping on the motor.
Wipe the fan surfaces dry after cleaning.
While cleaning the fan make sure the balance counterweights are not shifted and the impeller is not misaligned.
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE
OPERATIONS!
ENSURE THAT THE UNIT IS SWITCHED OFF FROM THE SUPPLY MAINS BEFORE
REMOVING THE GUARD.
TECHNICAL MAINTENANCE

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POSSIBLE MALFUNCTIONS AND THEIR ELIMINATION
Problem Possible reasons Elimination
The fan will not start. No power supply. Check the mains switch. Check the electrical connections
against the wiring diagram.
Jammed motor. Carefully check the fan impeller for possible seizure and
eliminate it, if necessary. If the impeller is in order, replace
the electric motor.
The switching equipment
activates upon fan start-up.
Short circuit in the fan or the electric circuit between
the fan and the switching equipment.
Eliminate the cause of a short circuit.
Excessive current consumption due to an overload in
the electric mains.
Eliminate the cause of excessive current consumption.
Improper fan starting method.
Use a soft starter or frequency converter to start the motor
(see "Asynchronous Electric Motor Starting Methods"
in the "
Connection to power mains " section).
Improper switching equipment. Re-select the switching equipment in accordance with the
current regulations and equipment specifications.
The installed switching equipment is of poor quality
or its actual performance falls short of the rated values
stated by the manufacturer.
Re-select the switching equipment by choosing a unit
which successfully passed commutation and load tests
and has a technical compliance certificate. The selection
should be limited to the top five foreign switching
equipment manufacturers.
The fan fails to reach the
required rotation speed due to
serious overheating of the fan
motor.
Fan motor overloaded. Eliminate the overload.
Improper fan starting method. Use a soft starter or frequency converter to start the motor
(see “Asynchronous Electric Motor Starting Methods”
in the“Connection to power mains” section).
The fan motor runs at
overload capacity with current
consumption in excess of the
rated value.
The fan supplies more air than expected upon motor
capacity selection.
Measure network resistance. Throttle down the network
(add aerodynamic resistance to the air duct network).
Wrong motor phasing. The impeller rotates in the
opposite direction of the arrow on the fan casing.
If necessary, change the impeller rotation direction by
changing the phase sequence on the electric motor
terminals.
Air ducts clogged. Clean the air duct or the impeller.
The fan supplies more air than
expected.
The resistance values used during the ventilation
network calculations are too conservative.
Check the air ducts for proper shape and cross section as
well as for any dampers present.
The cross section of air ducts increased and their
number reduced during the installation.
Throttle down the network (add aerodynamic resistance
to the air duct network).
Wrong choice of the fan. Replace the fan with a unit of proper standard size.
TROUBLESHOOTING

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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 provided 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.
The fan supplies less air than
expected.
Wrong calculation of the ventilation network and
wrong selection of the fan.
Re-calculate the network parameters and select a
matching fan.
The network resistance exceeds the design
calculations.
Re-arrange the ventilation network to decrease its
aerodynamic resistance.
Wrong direction of the impeller rotation.
If necessary, change the impeller rotation direction by
changing the phase sequence on the electric motor
terminals (see the “Commissioning” section).
Air leak through a loose air duct connection. Eliminate the air leak. Seal the air duct connection.
Impeller or air duct contamination with foreign
objects or debris.
Clean the impeller or the air ducts from foreign objects or
debris.
Excessive noise or vibration both
inside the fan and in the circuit.
Loose screw connections. Check the screw connections for proper tightness.
No flexible joints between the fan and the ventilation
network on the suction and discharge sides.
Install flexible joints.
Loose connection of valves and dampers to the air
ducts.
Tighten up the fasteners of valves and dampers.
Impeller or air duct contamination with foreign
objects or debris.
Clean the impeller or the air ducts from foreign objects or
debris.
Worn bearings. Replace the bearings.
Unstable power supply, unstable motor operation. Check the stability of power supply parameters and
electric motor operation.

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MANUFACTURER’S WARRANTY
The product is in compliance 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 by means of warranty repair at the factory free of charge. The warranty repair includes 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
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.
The manufacturer shall not accept any claims with regards to the condition of the paint-and-lacquer coating
(hereinafter PLC) in the following cases:
• Dents, cracks, scratches and abrasions of the PLC sustained during handling, mounting and assembly operations.
• Progress of corrosion on areas damaged with stones, sand, and roof coat tar during the performance of roofing work.
• Signs of direct exposure of the PLC to excessive temperatures, which occurred during the performance of roofing work.
• Violation of regulations on transportation, storage, installation, and operation of the unit.
• Presence of damage caused by exposure to industrial and chemical emissions, acidic or alkaline pollution, sap or other factors not
related to normal operating conditions.

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Box-S
15
CERTIFICATE OF ACCEPTANCE
Unit Type Duct rectangular smoke extraction fan
Model Box-S_______________________________
Serial Number
Manufacture Date
Quality Inspector’s
Stamp
SELLER INFORMATION
Seller
Seller’s Stamp
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 Box-S_______________________________ unit is installed pursuant to the requirements stated
in the present user's manual.
Installation Stamp
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
Unit Type Duct rectangular smoke extraction fan
Seller’s Stamp
Model Box-S_______________________________
Serial Number
Manufacture Date
Purchase Date
Warranty Period
Seller

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B228EN-01