NOTE
Only trained/authorised electricians are allowed to carry out any work
required in the electrical parts of this Cotes dehumidifier.
When the cover of the electrical box is open, the power supply must be
switched off at the mains switch.
Commissioning procedure
1. Check the electrical installation before starting the dehumidifier, switch on the mains switch.
• 230V – Check the voltage between the terminals L1, N
• Is the ground cable connected, and of the correct specifications?
• Is any hygrostat (if fitted) correctly connected?
2. Check the connected duct system
• Is the recommended damper installed in the regeneration air outlet duct?
• Is the optional damper installed in the process air outlet duct?
• Do the regeneration air outlet ducts drain away from the dehumidifier, to make sure that any
condensed water flows away?
• If the regeneration air outlet does not drain away from the dehumidifier, check whether there
is a 6 mm-diameter hole drilled in the lowest part of the duct, so that any accumulated water
can drain away.
3. Suggested damper positions/air flow settings at commissioning
• Dampers/settings should be set in the following positions.
o Damper at process air outlet: Fully open.
o Damper at regeneration air outlet: Fully open.
4. Once the dehumidifier is operating, adjust the air flows.
How to adjust air flows
The dry air flow can be adjusted when a damper Ø125 is installed in the dry air outlet duct.
If only a short duct is installed, the opening should be reduced on the damper to obtain the nominal air flow.
The dry air flow should be adjusted to the nominal value for obtaining data from the capacity diagram.
The regeneration air flow must be adjusted with a damper installed in the regeneration air outlet.
Start-up with the damper in the open position and close it until the Ammeter indicates 4,5A (at 230V).
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