Fancom Lumina 35 Installation Manual

Lumina 35 Explanation control functions15P-controlIf the temperature is higher than the Control value,heating is on the minimum position. The minimumposition is a user setting.If the temperature is between the Control value andControl value P-band, heating will be at a positionbetween minimum and 100%, depending on thedifference.As long as the measured house temperature is lowerthan Control value - P-band the control computer willoutput the maximum control signal.The P-band is a user setting.PI controlIf the temperature is lower than the Control value, the control computer will control the heating directly based onthe temperature difference. As long as the temperature is too low, the heating will go to an increasingly higherposition (max. 100%). The increase/decrease speed depends on the time set by the user (usually between 100and 600 seconds).The control computer can be used to control a cooling unit. Enter to which analog inputs the temperaturesensor(s) have been connected and to which relay the cooling has been assigned. Also enter the type of relaycontrol: ON/OFF or MODULATING. The type of control depends on the chosen cooling system.With evaporative cooling you can use the Max. RH limit with evaporative cooling. This influence is explained inthe user's manual.The control computer can use a hysteresis. This prevents the cooling being activated or deactivated with slighttemperature fluctuations. The control computer activates the cooling if the house temperature rises above thehysteresis. If the house temperature drops, the cooling will stay on until the house temperature has droppedbelow the setpoint cooling. If a evaporative cooling is selected the control is explained in the user's manual.The ON/OFF control and the time modulating ON/OFF control to control the cooling are explained here:ON/OFF controlCooling activates if the house temperature is higher than Setpoint+ hysteresis.Cooling deactivates if the temperature is equal to or lower thanSetpoint.A Repeat time can be used to avoid unnecessaryactivation/deactivation of the cooling. When the cooling activates,it will remain on for at least the Repeat time. When the coolingdeactivates, it will remain off for a minimum of this time.Time modulating ON/OFF controlThis type of control can be selected if the cooling capacity is large and the cooling system is suitable formodulating control.Cooling is continually on, if the temperature of the cooling control is higher than Setpoint + hysteresis.Cooling is continually off, if the temperature is equal to or lower than the Setpoint.