Daikin UATYA-B, Operation Manual

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Service manual Daikin R32 Rooftops UATYA-B
ESIE21-02 – 2021.03
3.9.8 Ventilation in return line
The table shows the ventilation parameters for the various functions connected.
Parameter Min Max UM Description
RFA4 0 999 s Delay time to fan switch-off
RFA6 0 999 s Delay time to return fan switch-on from On unit
RFA7 0 100 % Minimum speed
RFA8 15 100 % Maximum speed
RFA9 0 100 % Manual override (0 = Disabled)
RFA11 375 900 10 m
3
/h Fixed speed in de-humidification mode (0 = Disabled)
RFA25 375 900 10 m
3
/h Leak detector - Flow rate setpoint
RFA26 375 900 10 m
3
/h PID - Constant air flow control - Flow rate setpoint
RFA27 0 900 10 m
3
/h PID - Constant air flow / pecentage air flow control - Min. flow rate setpoint
RFA28 375 9999 10 m
3
/h PID - Constant air flow / pecentage air flow control - Max. flow rate setpoint
RFA29 0 9999 10 m
3
/h PID - Constant air flow control - New air flow setpoint when the temperature
setpoint is reached
RFA30 0 1 -
PID - Constant air flow control - Enabling of new air flow setpoint when the
temperature setpoint is reached
RFA31 0 9999 10 m
3
/h PID - Constant air flow control - Defrost - New air flow setpoint
RFA32 0 1 - PID - Constant air flow control - Defrost - Enabling of new air flow setpoint
RFA33 10.0 100.0 Pa Constant pressure control - Pressure setpoint
RFA34 0.0 100.0 Pa Constant pressure control - Min. pressure setpoint
RFA35 10.0 3270.0 Pa Constant pressure control - Max. pressure setpoint
RFA36 0.0 3270.0 Pa Constant pressure control - Neutral area
RFA37 0.0 3270.0 Pa Constant pressure control - Differential required for decrement
RFA38 0.0 3270.0 Pa Constant pressure control - Differential required for increment
RFA39 15 999 s Constant pressure control - Max. increment time
RFA40 0 60 s Constant pressure control - Min. increment time
RFA41 15 999 s Constant pressure control - Max. decrement time
RFA42 0 60 s Constant pressure control - Min. decrement time
RFA43 1 100 % Constant pressure control - Max. increment amplitude
RFA44 0 5 % Constant pressure control - Min. increment amplitude
RFA45 1 100 % Constant pressure control - Max. decrement amplitude
RFA46 0 5 % Constant pressure control - Min. decrement amplitude
RFA47 0 9999 10h Threshold for “fan operating hours exceeded” alarm (0 = Disabled)
RFA49 -50.0 50.0 Pa Constant pressure difference control - Pressure delta setpoint
RFA50 -3270.0 50.0 Pa Constant pressure difference control - Min. pressure difference setpoint
RFA51 -50.0 3270.0 Pa Constant pressure difference control - Max. pressure difference setpoint
RFA52 0.0 3270.0 Pa Constant pressure difference control - Neutral area
RFA53 0.0 3270.0 Pa Constant pressure difference control - Differential required for decrement
RFA54 0.0 3270.0 Pa Constant pressure difference control - Differential required for increment
RFA55 15 999 s Constant pressure difference control - Max. increment time
RFA56 0 60 s Constant pressure difference control - Min. increment time
RFA57 15 999 s Constant pressure difference control - Max. decrement time
RFA58 0 60 s Constant pressure difference control - Min. decrement time
RFA59 1 100 % Constant pressure difference control - Max. increment amplitude
RFA60 0 5 % Constant pressure difference control - Min. increment amplitude
RFA61 1 100 % Constant pressure difference control - Max. decrement amplitude
RFA62 0 5 % Constant pressure difference control - Min. decrement amplitude
RFA67 0 10000 - PID - Constant air flow / pecentage air flow control - Kp
RFA68 0 10000 - PID - Constant air flow / pecentage air flow control - Ki
RFA69 0 10000 - PID - Constant air flow / pecentage air flow control - Kd
3 Software functions