AIAS RC Techsheet IMO

8 / 26 | AIAS Room controller - installation and operation instruction
Heating/Cooling with VAV-control and forced supply air function
Like control mode Heating/Cooling but the cooling output is controlling a supply air damper (sub-tempered supply air). When the ven-
tilation is forced, the cooling output is set to full cooling (full supply air volume), regardless of what the controller output signal is.
Heating/Cooling with VAV-control
Heating and cooling are controlled in the same way as in the VAV-control above. The damper cannot be forced like above. There is also
a function that opens the supply air damper on heating demand. This is normally always required if the heater is placed in the supply
air duct, to carry the heat to the room. A maximum limit is set for the opening of the damper on heating demand. The factory setting
is zero, which means that the function to open the damper on heating demand is not active. The basic ow can also be set separately.
Cooling
In control mode Cooling, the unit is always a cooling controller and controls according to the basic cooling setpoint plus the setpoint
adjustment.
Cooling/Cooling
Split output signal In control mode Cooling/Cooling, the controller always functions as a cooling controller and
controls according to the basic cooling setpoint plus the setpoint adjustment. The control signal is divided between the two outputs
with a deadband in between. The rst output (UO1) works between 0...48 % of the control signal. When the control signal reaches 52
%, UO2 starts to operate and will be 10 V when the control signal is 100 %. See the gure below: