Dehumidifier ML420-MLT1400
Part number
170-013448–005
170-013448–004
170-013448–003
170-013448–002
170-013448–001
A
Ø 100
Ø 125
Ø160
Ø200
Ø250
B
See section 9.1, Dimensions and service space.
L (mm)
210
210
200
140
150
ML420
X
X
ML690
X
X
MLT800
X
X
ML1100
X
X
ML1350
X
X
MLT1400
X
X
CA
CA
CAUTION!
UTION!
UTION!
The dehumidifier has been designed to operate at specific process airflows corresponding to the fan sizes
installed.
■
The process air and dry air ducts should be the same diameter. The same applies to the reactivation air
and wet air ducts.
■
The length of ductwork must be kept as short as possible to minimise static air pressure losses.
■
To maintain performance, all rigid process or reactivation air ductwork joints must be air and vapour
tight.
■
The process air ductwork must be insulated to prevent condensation developing on the outside of the
duct, whenever the temperature of the air within the duct falls below the dewpoint temperature of the
ambient air through which the ductwork is routed.
■
The ducts must always be insulated when there is a risk of freezing.
■
The wet air leaving the dehumidifier will, because of high moisture content, condense on the inside duct
walls. By insulating the ducts, the amount of condensate is reduced.
■
Horizontal wet air ducts must be installed with a slight decline (away from the dehumidifier) to drain
away possible condensation. Suitable condensation drains must be installed at low points in the wet
air outlet duct, see
■
Ensure that access for operation and servicing is not restricted when designing and installing ducting.
For more information, refer to section
9.1, Dimensions and service space
■
To reduce noise and/or vibration being transmitted along rigid ducts, good quality, airtight flexible
connections can be fitted.
■
Ducts mounted directly onto the unit must be independently supported to minimise the load on the unit.
■
Dampers for adjusting the airflows must be installed in the supply air outlet and reactivation air inlet
ducts. Correct airflows are essential for the operating efficiency of the unit. For airflow adjustment
instructions, see section
5.3, Airflow check and adjustment
.
■
The total pressure drop in the process and reactivation ductwork must not exceed the available pressure
of the fans fitted to the dehumidifier. For details of minimum available static pressure, see section
.
10
Installation
190TGB-1035-H1604