ECH 200 BD
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The fan control unit may have a minimum speed, a maximum speed, and a “silent” speed (for silent operation, for instance
during the night), as well as a proportional band within these values.
The fan will always be off if:
• there is an alarm indicating that a condensation fan has shut down (refer to table of alarms).
• Ech 200 is on stand-by or off
CONDENSATION FAN CONTROL IN COOL MODE
• Pa F06 = Minimum fan speed in COOL mode;
• Pa F07 = Maximum silent fan speed in COOL mode
• Pa F08 = Minimum fan speed temperature/pressure set point in COOL mode
• Pa F09 = Prop band. Fan in COOL mode;
• Pa F10 = Fan cut-off delta;
• Pa F11 = Cut-off hysteresis;
• Pa F13 = Maximum fan speed in COOL mode
• Pa F14 = Maximum fan speed temperature/pressure set point in COOL mode
An example of interaction of these parameters is shown in the figure below:
External fan in COOL mode
Speed: fan speed Temp: temperature
Press: pressure
CONDENSATION FAN CONTROL IN HEAT MODE
• Pa F15 = Minimum fan speed in HEAT mode;
• Pa F16 = Maximum silent fan speed in HEAT mode;
• Pa F17 = Minimum fan speed temperature/pressure set point in HEAT mode;
• Pa F09 = Prop band. Fan in HEAT mode
• Pa F10 = Fan cut-off delta;
• Pa F11 = Cut-off hysteresis;
• Pa F19 = Maximum fan speed in HEAT mode;
• Pa F20 = Maximum fan speed temperature/pressure set point in HEAT mode.
An example of interaction of these parameters is shown in the figure below:
Silent speed
Cool mode
Fan control in cool
mode: diagram
Heat mode
Temp/Press
Pa F11
Pa F10
Pa F09
Pa F08
Pa F14
Pa F11
Speed (%)
Pa F13
Pa F07
Pa F06
OFF
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