Plymovent MultiDust BANK 2F, User Manual

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0000100519/121212/0 MDB-2X/2F/4F
EN - 15
0
4.7 start up
thE FOllOwiNg POiNts ArE tO BE chEcKED AND
iMPlEMENtED BEFOrE thE FiltEr uNit is Put
iNtO OPErAtiON
.
ElEctricity:
• Check in case of MDB-2F/MDB-2X of the overload to
match the information on the motor plate.
• For all units check he setting of the transformer to
match actual power supply
PNEuMAtics:
• Check that the compressed air is connected.
The compressed air should be dry, and at a maximum pres -
sure of 5 Bar / 65 psi.
Start up with new filters
As the pressure drop across the filter cartridge is low during
the breaking-in period, the airflow will exceed the estimated
operation flow. This can mean that the life-span of the filter
cartridges is shortened drastically. Therefore the airflow at
start-up needs to be controlled.
This can be done in three ways:
1. Placing an adjustment damper in the duct work on the fil -
ter outlet side. Adjust the damper at 50% open and start
up the fan. Adjust the airflow using a flow meter to the
correct flow for the application. Check airflow regularly
and open damper more if necessary to correct airflow.
The airflow and damper position will become constant
after the breaking in period; this can take between 2-8
weeks depending on application.
2. In case of a manual controlled frequency converter with a
potentiometer, adjust the airflow to the correct airflow for
the application by using the potentiometer. Check airflow
regularly and adjust potentiometer if necessary. The air -
flow and position of potentiometer will become constant
after the breaking in period; this can take 2-8 weeks
depending from application
3. In case of automatic controlled frequency converter. Set
the airflow first manually as in 2. Measure the signal
(4-20 mA) from the PT-1000 and change set point in
PID functionality of frequency converter to the measured
value. Change the setting to Set-up 2. The system will
adjust it automatically.
Precoating
Use protection gloves, if not carried out with the
necessary caution, may cause serious personal
injury.
Use breathing protection, if not carried out with
the necessary caution, may cause serious personal
injury.
Precoating is a recommendation in all applications, especially
in applications with plasma and laser cutting. Precoating
is done with Preco-N at a quantity of 0,5 to 1 kg per filter
cartridge.
• Switch on the filter unit with fan on full capacity.
• Adjust the flow if necessary as described under 12,3 to
remain below pressure drop over the filter of 700 Pa to
avoid automatic cleaning.
• Add Precon-N at a maximum speed of 0,5-1 kg per 30
seconds at the closest extraction point in an gradual
manner.
• No fumes or dust may pass the filter system prior to or
during precoating.