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- Operation with half season function (
M15
=1):
The mode is selected automatically in relation to the operating temperature (see
“11. Regulation sensor(s)” page 24
).
If the operating temperature is greater than
I08
+ (
I19
: 2), the icon “
COOL
“ turns on to indicate that cooling mode is
active.
If the operating temperature is lower than
I08
- (
I19
: 2) -
I21
-
I18
, the icon “
HEAT
“ turns on to indicate that heating
mode is active.
At startup, if the operating temperature is in the neutral zone, the “
HEAT
“ icon turns on.
If the operating temperature drops below
I08
- (
I19
: 2) -
I21
-
I18
relay
DO2
is activated and the fan starts immediately
at speed 1, regardless of the startup delay
I36
.
If the temperature continues to fall, the speeds switch as follows:
- the speed switches from speed 1 to speed 2 when the temperature drops below
I08
- (
I19
: 2) -
I21
-
I18
- [
I26
x (FB -
I18
)],
- the speed switches from speed 2 to speed 3 when the temperature drops below
I08
- (
I19
: 2) -
I21
-
I18
- [
I27
x (FB -
I18
)].
Icons and
turn on to indicate that heating mode with electric resistance is active.
If the operating temperature increases to
I08
- (
I19
: 2) -
I21
-
I18
the speed remains constant at speed 1 until the op-
erating temperature exceeds
I08
- (
I19
: 2) -
I21
.
Icons and
turn off and, depending on the value of
I28,
the fan turns off after delay
I35
or stays on for air recircula-
tion:
if
I28
=0 or 2, the fan stops after delay
I35
.
if
I28
=1 or 3, the fan stays on at speed 1.
if
I28
=4 or 6, the fan stays on at speed selected manually.
N.B.: if the minimum thermostat function is active, the fan starts immediately regardless of the position of the minimum
thermostat, when electric resistance is active.
If the operating temperature rises above
I08
+ (
I19
: 2), relay
DO1
is activated and the fan starts at speed 1 after startup
delay
I36
.
If the temperature continues to rise, the speeds switch as follows:
- the speed switches from speed 1 to speed 2 when the temperature rises above
I08
+ (
I19
: 2) + [
I26
x (FB -
I19
)],
- the speed switches from speed 2 to speed 3 when the temperature rises above
I08
+ (
I19
: 2) + [
I27
x (FB -
I19
)].
The icon turns on to indicate that cooling mode is active.
If the operating temperature falls to
I08
+ (
I19
: 2), the speed remains constant at speed 1 until the operating temperature
drops below
I08
- (
I19
: 2).
At this point, icon turns off and, depending on the value of parameter
I28
, the fan either stops or continues running:
if
I28
=0 or 3, the fan stops,