Product Description; Safety - PLYMOVENT MDB-2 COMPACT Manual De Instalación Y De Uso

Refer to section 4.3 for lifting instructions.
2

PRODUcT DEScRIPTION

2.1 components
The system consists of the following main components and
elements:
Fig. 2.1
A RamAir™ pulse amplifier (filter cleaning system), incl.
compressed air tank
B air inlet module
C dust drawer
D filter cartridges
E extraction fan
F air outlet
G FilterControl panel
A
B
Fig. 2.1 Main components and elements
2.2 Operation
The polluted air from the external device is extracted through
the air inlet on the left side of the unit. The air passes the filter
cartridges inside the housing. The filtered air is blown back
into the workshop by the outlet of the fan housing.
The filter cartridges are cleaned individually by compressed air
pulses. This is called the RamAir™ pulse amplifier. The dust
and dirt particles are collected in the dust drawer.
2.2.1 Control
The unit is controlled by a PLC which has the following primary
functions:
- start/stop of the fan
- automatic filter cleaning
- indication of filter replacement
The PLC is located inside the FilterControl panel.
0000104046/150915/0 MultiDust Bank COMPACT
C
D
Start/stop of the fan
The integrated fan is started by a push button on the
FilterControl panel or by an external signal, e.g. from a
welding robot. When the external device stops, the fan stops
as well. During the delay time of the fan the after fumes, if
any, are removed from the external device.
Automatic filter cleaning
Offline filter cleaning
When the fan stops while the pressure drop over the filter
cartridges is higher than 1200 Pa (4.8 in. WG), an offline filter
cleaning cycle takes place. The number of compressed air
pulses per filter cartridge depends on the actual pressure drop.
Threshold values:
- 800 Pa (3.2 in. WG): 2 pulses per filter cartridge
- 1000 Pa (4 in. WG): 4 pulses per filter cartridge
- 1200 Pa (4.8 in. WG): 6 pulses per filter cartridge
Online filter cleaning
The automatic filter cleaning system is activated as soon as
the pressure drop exceeds 1500 Pa (6 in. WG) during use. It
continues until the pressure drop is below 1400 Pa (5.6 in.
7
WG).
Forced filter cleaning
G
If the pressure drop has remained below 800 Pa (3.2 in. WG)
during 30 running hours of the system, an online filter
cleaning cycle takes place (1 pulse per filter cartridge).
Indication of filter replacement
F
Replacement of the filter cartridges is necessary when the
filter cleaning system cannot get the pressure drop below
1500 Pa (6 in. WG) during one hour. This is shown by the red
alarm light on the FilterControl panel.
E
3

SAFETy

general
The manufacturer does not accept any liability for damage to
the product or personal injury caused by ignoring of the safety
instructions in this manual, or by negligence during
installation, use, maintenance, and repair of the product
mentioned on the cover of this document and any
corresponding accessories.
Specific working conditions or used accessories may require
additional safety instructions. Immediately contact your
supplier if you detect a potential danger when using the
product.
The user of the product is always fully responsible for
observing the local safety instructions and regulations.
Observe all applicable safety instructions and
regulations.
User manual
- Everyone working on or with the product, must be familiar
with the contents of this manual and must strictly observe
the instructions therein. The management should instruct the
personnel in accordance with the manual and observe all
instructions and directions given.
- Do not change the order of the steps to perform.
- Always keep the manual with the product.
Pictograms and instructions on the product
(if present)
- The pictograms, warning and instructions attached to the
product are part of the safety features. They must not be
6. In case of PRECO-N (precoat): To maintain the protective layer of precoat on
the filter cartridges, the filter cleaning system will not be activated during the
first 30 running hours of the fan and within 30 hours after filter replacement.
7. max. 60 minutes
6
EN - 5