MAICO BK 20 Electric External Shutters Instruction Manual
- August 5, 2024
- MAICO
Table of Contents
MAICO BK 20 Electric External Shutters
Product Usage Instructions
Safety Precautions
Before using the product, ensure to follow these safety guidelines:
- Turn off the mains fuse and secure it against reconnection.
- Attach a warning sign to indicate that work is being done.
Electrical Connection
Follow these steps for the electrical connection:
- Disconnect the mains fuse and secure it against reconnection.
Start-up Procedure
Initiate the start-up process by:
- Switch on the mains fuse and remove the warning sign.
Cleaning
Maintain cleanliness by periodically cleaning the product.
Disassembly and Environmentally Friendly Disposal
If disassembly is required, it should only be carried out by a qualified
electrician to ensure safety and proper disposal.
Installation instructions for MK,BK electric external shutters
NOTE
Please read the instructions carefully before installing and using for the
first time.
Follow the instructions.
Pass these instructions on to the owner for safekeeping.
Unit Overview
1| External shutter: MK.. with servomotor
BK.. with bi-metal drive
---|---
2| Power cable, pre-wired
3| Empty duct
4| Flyscreen
T| Rating plate
Specialist installer qualifications
Installation may only be carried out by trained specialists who have the
necessary knowledge and experience in ventilation engineering. The unit must
be connected in accordance with the national technical approval.
Only a qualified electrician is permitted to work on the electrics. You are
deemed a qualified electrician if you are familiar with the relevant standards
and guidelines, can competently and safely connect units to an electrical
power supply in line with the Wiring diagrams and are able to recog-nise and
avoid risks and dangers associated with electricity on the basis of your
technical training and experience.
Scope of delivery
External shutter, fly screen, empty duct and these installation and operating instructions.
Intended use
Electric external shutters as shutters for ventilation ducts, wall sleeves,
etc. For combination with EN/ENR fans, for example. They are attached to
exterior walls and serve as weather protection or a cold air barrier when the
fan is switched off.
These external shutters open/close when a fan is switched on/off, BK..
external shutters with bi-metal drive open/close with a delay.
MK..S external shutters are equipped with a limit switch that closes a control
contact when the shutter is open. This is used, for example, to con-trol an
exhaust shutter.
Use is only permissible with:
- a permanent installation, mounted on an exterior wall with sufficient load-bearing capacity.
- installation using suitable mounting material.
- vertical installation position with the Maico lettering at the bottom right.
- installation complete. The external shutter must not be dismantled.
These external shutters are only intended for domestic use and similar purposes. Any other use or use beyond this is considered improper use.
Safety instructions
The external shutter must not be used in thefollowing situations under any circumstances.
DANGER Risk of combustion/fire from flammable materials, liquids or gases in
the vicinity of the unit.
Do not place any flammable materials, liquids or gases near the unit, which
may ignite in the event of heat or sparks and catch fire. DANGER Explosion
hazard due to gases and dust.
Explosive gases and dust may ignite and cause serious explosions or fire.
Never use unit in an explosive atmosphere (risk of explosion).
WARNING Risk to health from chemicals or aggressive gases/vapours.
Chemicals or aggressive gases/vapours may harm health, especially if they are
distributed throughout the rooms by the unit.
Never use the unit as a duct shutter for chemicals or aggressive
gases/vapours.
NOTICE Damage to unit due to grease and oil vapours from range hoods.
Grease and oil vapours from range hoods may contaminate the unit and reduce
efficiency. Never use external shutter in combination with range hoods with
exhaust air mode.
DANGER Risks for children and people with reduced physical, sensory or
mental capabilities or a lack of knowledge.
Unit may only be installed, commissioned, cleaned and maintained by persons
who can safely recognise and avoid the risks associated with this work.
WARNING Risk of injury due to suction effect and rotating impeller of a
connected fan.
Hair, clothing, jewellery etc. may be pulled into the unit if you get too
close to it.
During operation, always keep far enough away to prevent this from happening.
WARNING Risk of injury due to spark formation if foreign bodies are
inserted into the unit.
Do not insert any objects in the unit.
NOTICE An external shutter that is not installed correctly may result in non-intended operation or impermissible operation. Operation is only permitted if installed in the correct installation position (Maico logo at bottom right).
WARNING
-
Risk of injury in entrance areas when ice forms due to falling icicles. Never install the shutter above entrance areas that are not covered.
-
Risk of injury and health risk in the event of changes or modifications or if components which are not permitted are used.
The unit may only be operated with original com-ponents. Changes and modifications to the units are not permitted and release the manufacturer from any guarantee obligations and liability, e. g. if the housing is drilled at a point which is not permitted. -
Risk of injury when working at heights.
Use appropriate climbing aids (ladders). Stability should be ensured, if necessary have the ladders steadied by a 2nd person.
Ensure that you are standing securely and cannot lose your balance and that there is no one under the unit.
NOTICE Depending on type, sound power level up to 66 dB(A).
When planning, take into account sound insulation at the installation site.
DANGER Risk of death from carbon monoxide when operating with air-
ventilated fireplaces.
The maximum permitted pressure difference per residential unit is 4 Pa. The
consent of a profes-sional chimney sweep is needed in all cases. Ensure
sufficient supply air intake during opera-tion with an air-ventilated
fireplace.
DANGER Risk of electric shock if oper-ated with a damaged external
shutter.
Only operate the external shutter when it is completely installed.
Do not commission a damaged unit.
DANGER Danger if the relevant regula-tions for electrical installations
are not observed.
Before installing the electrics, shut down all sup-ply circuits, deactivate
the mains fuse and secure it so it cannot be switched back on. Attach a
warning sign in a clearly visible place.
Be sure to observe the relevant regulations for electrical installation; e.g.
DIN EN 50110-1. In Germany, particularly observe VDE 0100, with the
corresponding sections.
A mains isolation device with contact openings of at least 3 mm at each pole
is mandatory.
Only connect unit to permanently wired electrical installation and with NYM-O
or NYM-J cables, depending on the unit variant, 3 x 1.5 mm² or 5 x 1.5 mm².
Units may only be operated using the voltage and frequency shown on the rating
plate.
The degree of protection stated on the rating plate is only guaranteed if
installation is undertaken correctly and if the connection cable is properly
attached.
Unit may be energized even when at a standstill and may be switched on
automatically by sensors, such as for time delay or humidity etc. Maintenance
and fault finding only permissible when carried out by qualified electricians
CAUTION when handling packaging materials.
Observe applicable safety and accident prevention regulations.
Store packaging material out of the reach of chil-dren (risk of suffocation
due to swallowing).
Product information
The external shutter is switched with a component to be provided by the
customer. Can be switched on/off e.g. via on/off switch, TH thermo-stat, TRE…S
5-step transformer or a FS 4 step switch → Accessories.
Technical data
| Rated voltage | 230 V |
|---|---|
| Power frequency | 50 Hz |
| Nominal power | MK.. 3 W, BK.. 25 W |
| Rated current | MK.. 0.015 A, |
BK.. 0.01 A
Starting current| BK.. 1.8 A – 1 sec
Degree of protection| IP 55
Protection class| II (without PE con- ductor)
---|---
Pressure loss| 11 Pa
Ambient and airstream temperature| max. +40 °C.
Storage temperature| -20 to +60 °C, Store unit only in a dry place
Nominal sizes, dimensions [A]…[D], in [mm]
| N| A| B| C| D
---|---|---|---|---|---
MK 20| 200| 325| 218| 275| 83
MK 25| 250| 370| 262| 320| 105.5
MK 31| 315| 430| 320| 380| 135.5
BK 20| 200| 325| 218| 275| 83
BK 25| 250| 370| 262| 320| 105.5
BK 31| 315| 430| 320| 380| 135.5
Installation
NOTICE External shutter does not close correctly if it is installed under
tension.
In order to guarantee the shutter function, only mount the external shutter on
a flat surface. Allow sufficient space to the wall or ceiling.
-
Switch off mains fuse, secure against being accidentally switched back on and position a warning sign.
-
Ensure a level surface in the area of the installation site.
-
Install wall sleeve/ventilation channel matching the nominal diameter in the exterior wall.
-
Attach the enclosed empty duct [3] (for the connection cable) to the exterior wall.
Note the position of the connection cable in the rear panel of the housing. -
Align the external shutter and mark the posi-tion of the 4 holes. For spacing Technical data [} 8].
-
Drill the 4 fixing holes and insert the dowels. Suitable mounting material is to be provided by the customer.
-
Press the fly screen [4] onto the studs on the rear wall of the external shutters.
NOTICE Shutter function not guaranteed if installed incorrectly.
Make sure that the cable [2] is routed tightly out of the external shutter and that it does not jam the inner slider. -
Insert the cable [2] on the exterior wall through the empty duct [3] and tighten slightly.
-
Screw the external shutter firmly to the wall with 4 screws. Suitable mounting material is to be provided by the customer
Electrical connection
NOTICE Risk of damage to unit in the event of short circuits.
Insulate any unnecessary cable cores.
- Always note the relevant specifications for elec-trical installations and when fitting equipment. In Germany, observe DIN VDE 0100 and the cor-responding parts in particular.
- The connection cable between the external shutter and the fan terminal box must be firmly routed.
- Only connect the external shutter in parallel to the fan.
- Do not connect the external shutter to a regulated voltage source.
- Design in accordance with protection class II.
- Switch off mains fuse, secure against being accidentally switched back on and position a warning sign.
- Make electrical connections according to cir-cuit diagrams (Circuit diagrams (connection examples) [} 15]).
Commissioning
- Check compliance with the technical data on the → rating plate.
- Ensure that the air can flow freely.
- Switch on mains fuse, remove warning sign.
- Run function test. Check the correct closing and opening function.
Cleaning
Cleaning is done with a dry cloth if necessary –frequency depends on
environmental conditions and expected impairments. Do not use aggress-ive,
harmful or easily flammable cleaning agents. To clean, swing the lamellae of
the external shut-ter upwards.
The external shutter is maintenance-free
Fault rectification
Fault finding and repairs may only be car-ried out by qualified electricians.
| Malfunction | Cause, measure |
|---|---|
| External shutter does not open or close. | No mains voltage. Check whether the |
mains fuse has failed. Switch on if necessary.
Dismantling and environmentally sound disposal
Dismantling may only be undertaken by a qualified electrician.
The unit and the packaging contain parts that can be recycled, and should not end up in the domestic waste. Dispose of the packaging material and the unit in an environmentally friendly way, in compliance with the regulations valid in the country where you are.
Company information
© Maico Elektroapparate-Fabrik GmbH. Translation of the original German
operating instruc-tions. Misprints, errors and technical changes are reserved.
Circuit diagrams
FAQ
Q: What is the intended use of the product?
A: The product is designed as electric external shutters for ventilation
ducts and wall sleeves, providing weather protection and cold air barrier
functions.
Q: Can the external shutters be used for commercial purposes?
A: No, the external shutters are intended for domestic use and similar
purposes. Commercial use is considered improper.
Q: What safety precautions should be followed during installation?
A: Ensure to disconnect the mains fuse, secure it against reconnection,
and display a warning sign indicating ongoing work.
Maico Elektroapparate-Fabrik GmbH ISteinbeisstr. 20 I 78056 Villingen- Schwenningen I Germany I www.maico-ventilatoren.com I Service +49 7720 6940 Iinfo@maico.de