Black Nova ARIA - Control Unit Section; FCU and HVAC Control Parameters

ARIA and ALBA KNX Keypad Panels - Operation and Maintenance Manual
Page 18/21
Control unit section
Control unit section as available if operation mode selected as “control unit and thermostat”.
Parameter
Description
FCU type
Selection for FCU type
2-pipe: FCU with cooling
or
heating mode
4-pipe: FCU with cooling
and
heating mode
FCU default mode
Default mode when the keypad is powered up
Hysteresis for speed control
Select FCU speed according to differences between room and setpoint temperature
when FCU running AUTO speed.
Speed transfer time
Specified amount of time to switch speed
Threshold temperature for speed 1
Threshold temperature to turn the fan speed to 1
Threshold temperature for speed 2
Threshold temperature to turn the fan speed to 2
Threshold temperature for speed 3
Threshold temperature to turn the fan speed to 3
Valve open value
Value to be sent to bus when valve is open
Valve close value
Value to be sent to bus when valve is close
Hysteresis for valve control
Defines when valve opens according to differences between room and setpoint
temperature
Valve transfer time
Specified amount of time to switch valve status
Proportional regulation
Defines what % valve opens according to differences between room and setpoint
temperature
Regulation time interval
Specified amount of time to calculate FCU logic again
Temperature sensor
Selection for temperature sensor (internal or external) going to be used with the FCU
logic.