IceDry 800/1400
■
Dampers for balancing the air flow must be installed in the reactivation air inlet duct. Correct airflows
are essential for maintaining the operating efficiency of the unit. For airflow adjustment details, see
section
4.11, Airflow check and adjustment
.
■
Process air pressure and flow are adjusted using the process air fan's frequency converter. If this is the
case, it is not necessary to have a damper in the dry air duct.
■
The total resistance in the process and reactivation ductwork must not exceed the performance rating
of the fans fitted in the dehumidifier. For details of minimum available static pressure, see chapter
.
4.6.2 Process air inlet
The dehumidifier has an external filter box for the process air inlet. If there is a risk of the process air filter
icing up, a duct should be connected to retrieve process air from a dry location 5-10 metres from the door
opening. The filter box can then be moved to the inlet side of the duct.
4.6.3 Dry air outlet duct
Channel out the dry air from the dehumidifier and distribute it so that it mixes with the warm, humid air that
normally enters the cold store above the doors and air-locks that are opened regularly. Install an adjustable
damper in the duct.
4.6.4 Reactivation air intake
Place the reactivation air intake and filter box outside the cold store. Mount the filter box directly on the wall.
The duct to the dehumidifier reactivation air intake should be at most 1.5 metres long, and must be insulated
to prevent ice build-up. This also applies to the section of duct passing through the wall. An adjustable
damper is installed in the duct.
To prevent the outgoing wet air humidifying the incoming reactivation air, the reactivation air intake must be
positioned at least 2 metres from the wet air outlet
A. Reactivation air
B. Wet air
1. Filter box
2. Condensate drains
~ 0,5 m
1
3
A
B
2
Min.
2,0 m
2
Figure 4.1 Inlet for reactivation air and outlet for wet air.
3. Vapour-tight grommet
190TGB-1037-G1307
Installation
9
