Fan - Danfoss AK-CC55 Water Loop User Manual

AK-CC55 Water Loop
Figure 34: Rail heat control, dewpoint
100%
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During defrosting
During defrosting, rail heat will be active, as selected in setting d27.

Fan

Pulse control
To obtain energy savings, it is possible to pulse control the power supply to the evaporator fans.
Pulse control can be accomplished in one of the following ways:
• during the thermostat's cut-out period (cold room)
• during night operation and during the thermostat's cut-out period (appliance with night blinds).
A period of time is set as well as the percentage of this period of time where the fans have to be operating.
Figure 35: Fan cycle time
Fan ECO operation (only custom setup)
Fan ECO operation is used to reduce fan speed during night operation – typically on cabinets with night blinds.
The function is enabled when a relay has been configured for Fan ECO function in one of the applications with
custom setup of relay functions.
The fan economy control (fan speed) is controlled via the two fan outputs:
• Fan output
• Fan Eco output
If the Fan output is activated, then the fan is running with 100% speed.
If the Fan ECO output also is activated, then the fan is running with reduced speed (typically 50%).
If both fan outputs are de-activated, then the fans are stopped.
© Danfoss | Climate Solutions | 2022.04
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BC378540472015en-000101 | 23