Translation from the original operating instruction
34
AL-KO AIR HEATER / AIR COOLER INDUSTRY
5.3
Mounting the accessory components
Ordered accessory components are pre-installed in the factory!
They are attached by using the device connectors located at the sides.
When this is not the case, the accessory components must be attached at the appropriate places using the fasten-
ing material supplied.
Example for accessory attachment:
1
Mixed air box MLK
2
Air heating device LH IND -NF
3
Device connector
Fig.: Accessory attachment
5.4
Heat exchanger connection
Take care not to mix up the feed and reflux pipe during the pipe installation. The medium inlet is at the air outlet
side (Figure Counter-current principle). Does not apply to the steam heat exchanger!
For connection of steam heat exchanger see the technical data!
Caution!
Hold the connectors in place with a suitable tool (e.g. pipe wrench) when connecting the heat exchanger to
prevent damage.
Attach pipes and connectors to ensure free access to the heat exchangers for maintenance purposes.
When temperatures below the freezing point occur, the heat exchanger must either be emptied and blown out
with compressed air or a standard anti-freeze with corrosion protection must be filled in to prevent damage due
to frost or corrosion!
Heat exchanger copper/aluminium (CU/AL):
Maximum operating pressure: 16 bar
Maximum flow temperature: Unit size 140 and 250 max. 80 °C
Unit size from 400 to 1000 max. 120 °C
Heat exchanger galvanised steel (FeZn/FeZn):
Maximum operating pressure: 10 bar
Maximum flow temperature: Unit size 140 and 250 max. 80 °C
Unit size from 400 to 1000 max. 120 °C
