100
English
• AIR POST-TREATMENT
FUNCTION
If the air supplied to the room needs to be heated or
cooled, various functions are available to supply and
regulate post-treatment systems.
The valves of the post-treatment sections can be con-
trolled by the electronic power board.
The valves are opened when the winter or summer air
conditioning temperature setpoint is not reached and
are closed when it is reached.
The target setpoint can be set to either the supply tem-
perature or the extraction temperature, as required.
The reference temperature for activating the logics is
selected by changing the Tpref parameter in the ”Par”
menu.
If Tpref is set as “T2”, the logics are based on the target
supply temperatures.
The setpoints can be changed in the Par menu with the
T2sth (heating setpoint) and T2stc (cooling setpoint)
parameters.
If Tpref is set as “T3”, the logics are based on the target
extraction temperatures. The setpoints can be chan-
ged in the Par menu with the T3sth (heating setpoint)
and T3stc (cooling setpoint) parameters.
It is possible to manage ON/OFF valves and electric
heaters powered at 230 Vac or regulated with a 0-10V
signal.
Whether or not certain functions are enabled depends
on the presence of pre-treatment elements for antif-
reeze functions.
Below is a table containing possible post-treatment
logics.
Active DIP
SWITCHES
AOPT
DIP2= OFF
DIP3=ON
or
EH
=
PrEs
or
AOPT
=
PrE
DIP4=OFF
DIP5=OFF
NonE
/
Cons
-
Q2 dedicated to potential preheating
VAlv
-
(230V resistance or valve)
DIP4=ON
DIP5=OFF
NonE
/
Cons
2 ON/OFF post-heating stages
Q2-Q3 (230V resistances or valves)
Q2 dedicated to potential modulating preheating
VAlv
Relay Q3 can control a modulating valve for a
post-heating hydronic coil based on the 0-10V
signal from AO-0
Q2 can only be used as ON/OFF pre-heating
Relay Q3 can control a modulating valve for a
post-heating hydronic coil based on the 0-10V
signal from AO-0
DIP4=ON
DIP5=ON
NonE
/
Cons
One Q2 post-heating ON/OFF
hydronic stage
One Q3 post-cooling ON/OFF
hydronic stage
Q2 dedicated to potential preheating
One Q3 post-cooling ON/OFF
hydronic stage
VAlv
Relay Q3 can control a modulating valve for a
post-heating hydronic coil in the winter and a
post-cooling one in the summer based on the
0-10V signal from AO-0
Potential opportunity to provide an ON/OFF
cooling control on Q3 and
a modulating fixed-point post-heating control
on Q2.
If DIP3=ON, Q2 dedicated to potential ON/OFF
preheating
Relay Q3 can control a modulating valve for a
post-heating hydronic coil in the winter and a
post-cooling one in the summer based on the
0-10V signal from AO-0
DIP4=ON
DIP5=OFF
EH=Post
NonE
/
Cons
Post-treatment with PWM modulating electric
heater and phase return on Q2
If DIP2=ON, EH=Post is disabled. The item does
not appear in the menu. Returns to default value
EH=PrIn
Q2 dedicated to potential preheating
ON/OFF post-heating available on Q3.
VAlv
Post-treatment with PWM modulating electric
heater and phase return on Q2
Relay Q3 can control a modulating valve for a
post-heating hydronic coil based on the 0-10V
signal from AO-0
If DIP2=ON, EH=Post is disabled. The item does
not appear in the menu. Returns to default value
EH=none
Q2 dedicated to potential preheating
Relay Q3 can control a modulating valve for a
post-heating hydronic coil based on the 0-10V
signal from AO-0
Post-treatment summary table
