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ture decreases until it reaches speed 3 when the operating temperature drops below
I08
-
I21
-
I18
- [
I27
x (FB -
I18
)].
Icon
turns on to indicate heating with the electric resistance is active.
If the operating temperature increases to
I08
-
I21
-
I18
, the speed remains constant at speed 1 until the temperature
exceeds
I08
-
I21
.
At this point the icon
turns off and, depending on the value of parameter
I28
, ventilation either stops after delay
I35
or continues for air recirculation:
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.
Wiring diagram
N L
DI
1
GN
D
DI
2
AI1 GN
D
AI2
DO
1
GN
D
AI3 GN
D
T1
T2
S1
S2
T3
CO
M
N
L
M1
0..
10
V
~
+
-
V1
AO1 GN
D
230Vac
AO2
G
G0
24Vac
R1
Y G0
A +
B
-
MODBUS RTU
(TH-xMxxx)
N.B.: only standard EC motors can be used for this application (
M14
=1).