MX
2
Plus Dehumidification system
®Munters
4.1.6
Energy
Recovery
Purge
and
Energy
Efficiency
Purge
1.
Reactivation air
2.
Heated reactivation air
3.
Wetair
4.
Process air
5.
Dryair
6.
Purge air
7.
Warm purge air
Figure
4.8
Principle
for
Energy
Recovery
Purge
and
Energy
Efftcienry
Purge
Energy
Recovery Purge (ERP) and
Energy
Efficiency Purge (EEP) are two energy saving solutions
that
recycles heat from
the
rotor, after
the
reactivation section in the rotational direction
of
the
rotor. A
minor
part
of
the
reactivation airflow
is
bypassed
to
the
warm
sector
of
the
rotor, before
the
airflow enters
the
reactivation heater.
The
airflow is heated
up
by the
rotor
and
then
mixed with
the
reactivation airflow, after
the reactivation heater.
The
recycled heat from
the
rotor
increases the efficiency and reduces
the
energy
consumption
.
Compared
to
a standard unit,
ERP
will give
the
same dehumidification capacity with reduced reactivation
heater energy. With
EEP,
the
reactivation heater energy is
the
same
as
in
a standard unit, while
the
dehumidification capacity is increased.
The
purge
airflow
duct
on
MX
2
35-9
5 is located inside
the
unit and the
purge
airflow (ERP,
EEP)
cannot
be
adjusted.
The
purge airflow
duct
on
MX
2
30 is installed
on
the
rear side
of
the
unit.
The
purge airflow (ERP,
EEP)
can
be
adjusted with a
damper
installed
on
the duct.
-□
Figure4
.9
MX
2
30
purge
airflow
duct
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