Fan Coil Actuator FCA 2
Updated: Feb-16 (subject to changes) Page
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6.7.3.2
Setpoint calculation in cooling mode
Table 66: Current setpoint during cooling
Operating mode
Current setpoint
Comfort
Base setpoint* + Setpoint dead zone
Standby
Base setpoint* + setpoint dead zone + increase in standby mode
Night
Base setpoint* + setpoint dead zone + increase in night mode
Frost/heat protection configured setpoint for heat protection mode
*
Base setpoint after reset
Example:
Cooling in comfort mode.
The room temperature is too high and FCA 2 has switched to cooling mode.
Table 67: Parameter settings:
Parameter page
Parameters
Setting
General
Supported function
Heating and cooling
Setpoints
Base setpoint after reset
21 °C
Cooling setpoints
Dead zone between heating and cooling 2 K
Increase in standby operation
2 K
Operating mode and operation Limitation of manual offset
+/- 2 K
The setpoint was previously lowered by 1 K via object 25.
Calculation:
Current setpoint
= base se setpoint dead zone
= 21 °C - 1 K + 2 K
= 22 °C
Changing to standby mode causes a further increase in the setpoint (energy saving) and results in
the following setpoint.
Setpoint
=
base se setpoint dead zone + increase in standby mode
= 21 °C - 1 K + 2 K + 2 K
= 24 °C
