0000104046/010822/A MDB-Compact PRO
12
• Do the same procedure for the remaining filter
cartridge(s).
4.7
Electric connection
For the electric connection of the MDB-Compact,
refer to the installation manual of the control
equipment
ControlPro
that is supplied with the
product.
4.7.1 Frequency inverter
• Refer to paragraph 1.4.1 about the use of a frequency
inverter.
ATTENTION
In case of connection voltage 400V/3ph/50Hz:
The use of a frequency inverter makes the 60 Hz fan
suitable to run on a 50 Hz power grid.
Setting of frequency inverter:
-
input voltage: 400V
-
output voltage: 230V
-
frequency: max. 60Hz
• Install the frequency inverter, if any, in accordance with the
electrical diagram.
4.8
Compressed air connection
ATTENTION
The compressed air must be dry and oil-free
according to ISO 8573-3 class 6.
To connect the compressed air, do the following.
Compressed air regulator:
• Option: install a compressed air sensor (kit) or the CAR-
KIT on:
-
the fan housing with self-tapping screws; or
-
another suitable position
in accordance with the electrical diagram.
• Connect a compressed air hose to the compressed air
regulator or CAR-KIT.
4.9
Option: precoat (PRECO-N) / CART-D, CART-C
and CART-E only
A layer of precoat enhances the efficiency and lifespan of the
filter cartridges CART-D, CART-C and CART-E. The other types
of filter cartridges do not need precoat material.
To make it easier to apply precoat material
(PRECO-N) after filter replacement, we recommend
to install an inspection hatch in the duct between
the external device and the air inlet module of the
unit.
Refer to Fig. V (B) on page 19.
Personal protective equipment (PPE)
Wear respiratory protection and protective
gloves when you apply precoat material.
Necessary quantity of precoat:
-
MDB-2/C: 1 kg (2¼ lbs.)
-
MDB-4/C: 2 kg (4⅜ lbs.)
-
MDB-6/C: 3 kg (6⅝ lbs.)
To apply precoat material to the filter cartridges, do the
following.
• Disconnect the compressed air supply.
• Put the precoat material in a bucket.
• Start the fan. It must run at full speed.
• Gradually
6
add the precoat material into the inlet of the
unit (or into the inspection hatch, if any).
• Stop the fan.
4.10
Duct connection
To prevent the dust to reach the external
device by the compressed air pulses during filter
cleaning, you must install a non-return valve in the
duct between the external device and the
MDB-Compact.
Refer to Fig. V (A) on page 19.
Min. duct diameters:
-
MDB-2/C: Ø 250 mm (9⅞ in.)
-
MDB-4/C: Ø 355 mm (14 in.)
-
MDB-6/C: Ø 400 mm (15¾ in.)
If applicable, install an adapter from metric to
imperial duct diameter; refer to paragraph 1.4.
• Connect the air inlet module of the unit (ref. Fig. 2.1D)
with the outlet of the external device.
• Make sure that all connections are airtight.
ATTENTION
The filtered air is blown back into the workshop by
the outlet of the fan housing. Do
not
connect the air
outlet (ref. Fig. 2.1H) to any ductwork.
4.11 Commissioning checklist
√
√
√
#
Check
OK
1.
Are all connections airtight?
2.
Are the filter cartridges installed in the right
way? (refer to paragraph 4.6)
3.
Is the direction of rotation of the fan correct?
4.
Is compressed air available? Pressure setting
4-5 bar?
5
USE
WARNING!
Fire hazard! Do
not
use the product for polishing
applications in combination with grinding, welding or
any other application that generate sparks.
5.1
Control
To control the MDB-Compact, refer to the
Installation manual
,
the
Online user manual
and the
Short user manual
of the
ControlPro.
6.
Dosing speed: approx. 1 kg (2¼ lbs.) per minute
