Commissioning - Dehutech 2400 User Manual

Commissioning

On initial start up, the following steps should be
taken in this order:
1. Ensure that the external isolation switch is
isolating the unit from the mains, and that the
main switch on the dehumidifier is set in the
OFF position.
2. Open the service panels of the dehumidifier
and ensure no foreign objects are left inside
the unit or in the electrical compartment
3. Ensure that the dry and wet air dampers are
open, and that ducts are clean and free of
blockages.
4. Check that air filters are installed and clean.
5. Rotate the fan impellers by hand and make
sure they can move freely.
6. Ensure that the mains supply fuse is suitably
rated.
7. Compare set values for motor circuit breakers
with correct values in electrical wiring dia-
gram in appendix 1.
8. Connect the dehumidifier to the main electri-
cal supply by turning the isolation switch to
ON, and check that all three phases are live.
Terminal L1, L2, L3 in the dehumidifier.
Subject to change without notice
9. Check to see that the lamp called STAND BY
is lighting up, but that the machine doesn't
start.
10. Start the dehumidifier for a short moment (3-4
seconds) by turning the main switch to the
MAN position. While in operation, check that
the rotor is slowly turning in the right direc-
tion, and the green operation lamp lights up.
Stop the dehumidifier by turning the main
switch to 0, and check the direction of rota-
tion for the fans.
11. Mount the service panels and ensure they seal
properly to the casing.
12. The dehumidifier is now ready for operation.
13. Start the dehumidifier and check that the unit
is operating at the correct air volumes by
taking measurements in the ducts. Always
check the airflows on the overpressure side
of the dehumidifier (dry air duct and wet air
duct).
14. If requested check the dehumidification per-
formance by measuring humidity in the dry
air outlet from the dehumidifier. Compare the
result with the performance chart on page 12.
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DehuTech 2400