EVERSKY
™
MS-CDF-019
–
Manufacturing Nr: 22
0001→
Version B
Update: 2022/06/14
20/70
IX.2.
Heating output (DO3) - 24Vac to be relayed
Only for Premium BC and Infinite BC unit versions.
Factory settings = NO (Normally Open) output.
24Vac output to be relayed.
The DO3 digital output is activated when the control identifies a
need for heat to comply with the temperature setpoint. This all-
or-nothing signal can be used to control, for example, the
operation of a circulator/pump, or a heating generator.
The DO3 Output gives 0Vac when it is inactive, 24Vac when it is
active.
The maximum current is limited to 100mA. The output must be
relayed to power a component whose consumption exceeds the
maximum current.
The status of the DO3 digital output is associated with the state of the analog output AO1 used for controlling the 3 ways valve of
the hot water heating coil.
IX.1.
3-way valve control output (AO1
–
0-10V)
Only for Premium BC or Infinite BC unit versions.
The operation of AO1 analog output is associated to the operation of the DO3 digital ouptput.
The signal of the AO1 analog output is 0-10V type.
It reflects the heating requirement calculated by the unit’s controller according
to the programmed temperature setpoint and the actual measured temperature via a PI (proportional/integral) control loop:
This signal can be used, for example, to control external devices (3-way modulating valve, heating modulating generator
…)
that
provides heating for the room. The unit is acting as a room thermostat.
