18
E 121 - DTU 614
C2 Eng.
04.07.01
We reserve the right to make changes without notice
COSTER
23. OUTPUT Ys
Output
Ys
with 0...10V– control signal is only enabled when the
Mv
fan
is operating, and can be
used for:
– AIR DAMPER TEMP.
= air damper control based on temp. comparison
– HUMIDIFICATION
= 0…10 V– vapor humidifier control.
– DEHUMIDIFICATION
= Air damper control for room dehumidification (swimming pools)
– RECUPERATOR
= Heat recuperator control
23.
1
Air damper control based on temperature comparison
Whenever actual outside temperature
t
°
r
exceeds the target
T
°
rHea
value, the controller starts the progressive opening
of outside air through the PI feature.
Whenever actual outside temperature
t
°
r
exceeds the target
T
°
rCoo
value, and outside temperature
t
°
o
exceeds actual
room temperature
t
°
r
, the controller shuts outside air through
the On-Off control.
23.
2
0…10 V– vapor humidifier control
The controller transforms the Humidification load signal
Qhumi
into the
Ys
output 0...10V– signal to control vapor humidifiers.
23.
3
Air damper control for room dehumidification (swimming pools)
The controller transforms the Dehumidification load signal
Qdehu
into the
Ys
output 0...10V– signal to control air dampers and use outside air to
dehumidify the room.
23.
4
Heat recuperator control
The recuperator is off (Ys signal = 0 V–) when:
– The outside temperature value
t
°
o
is comprised between
T
°
rhea
and
T
°
rCoo
.
The recuperator is on (Ys signal = 10 V–) when:
– The outside temperature value t
°
o is lower than actual room
temperature
T
°
r
and lower than the target
T
°
rHea
value.
– The outside temperature value t
°
o is higher than actual room
temperature
T
°
r
and higher than the target
T
°
rCoo
value.
A signal converter is required to transform the 0...10V– signal into an On-Off control.
23.
5
Minimum flow temperature limit
In the cases shown:
When actual flow temperature t
°
f drops below the minimum flow value
T
°
f
min
the controller shuts outside air with a modulating action.
23.
6
Minimum outside air
In the cases shown:
The minimum amount of outside air required to ensure air circulation can be controlled in two
different ways:
– directly through the controller display, or
– using a minimum air positioner
Rs
directly connected to the air damper actuator.
23.
7
Rapid function
In the cases shown:
If the Rapid Function is enabled, when the controller is switched on (E1-D or E2-D closed) the air
dampers remain shut 0% until room temp. returns within the T
°
rHea and T
°
rCoo target value range.
Rapid Function deletes the value
but not the setting for the minimum
positioner
Rs
.
Y s - Co n t r o l :
A I R DAMPER
M3.
6
De t e c t o r s L a y o u t
– 2 3 – – – – –
M3.
1
Y s - Co n t r o l :
RECUPERATOR
M3.
6
Y s - Co n t r o l :
DEHUMI D I F I CAT I ON
M3.
6
Y s - Ou t s i d e A i r
M i n i mum
:
x x x%
M2.
13
Ys - Con t r o l :
DAMP . TEM
M3.
6
Ys - Con t r o l :
DAMP. TEM
M3.
6
Ys - Con t r o
:
DEHUMI D I F I CAT I ON
M3.
6
De t e c t o r s L a y ou t
– – – – – 6 – –
M3.
1
De t e c t o r s L a y ou t
– 2 3 – – – – –
M3.
1
Ys - Con t r o l :
DAMP. TEM
M3.
6
Ys - Con t r o l :
DEHUMI D I F I CAT I ON
M3.
6
Y s - Ra p i d F u n c t i o n
a c c e n s i o n e : S I
M2.
14
Y s - Ou t s i d e A i r
M i n i mum
:
x x x%
M2.
13
He a t i ng F l ow
M i n : 1 8 c
Ma x : 5 0 c
M2.
4
Y s - Co n t r o l :
HUMI D I F I CAT I ON
M3.
6
De t e c t o r s L a y o u t
– – – – – 6 – –
M3.
1
t
°
o = t
°
r
t
°
o
+
0
10
–
t
°
o < t
°
r
1
°
C
Ys
Pb
s
T
°
r
Hea
T
°
r
Coo
Y
Hea
Y
Coo
Ys
min
t
°
f
+
–
T
°
f
min
Pb
s
t
°
o = t
°
r
t
°
o
+
0
10
–
t
°
o > t
°
r
Ys
T
°
r
Hea
T
°
r
Coo
t
°
o = t
°
r
t
°
o < t
°
r
dT
rec
dT
rec
dT
rec
dT
rec
10 V.
5 V.
0%
Q
Humi
0 V.
Ys
100%
50%
10 V.
5 V.
0%
Q
Dehu
0 V.
Ys
100%
50%
