15
E 121 - DTU 614
C2 Eng.
04.07.01
We reserve the right to make changes without notice
COSTER
18. RELATIVE HUMIDITY CONTROLLER
The function is only enabled if detector B6 is connected.
Desired Humidification and
Dehumidification values can be set in:
and
If set point adjuster
R%
is connected, such values can be changed remotely.
The value of the change is displayed in
±
% next to the set values.
The controller compares the desired values against relative humidity as
measured by detector B6, and calculates the load values for Humidification
Qhumi
and for Dehumidification
Qdehu
according to deviations detected:
• Prop. Band
: – – . – % = Humidity proportional band in %
• Integral time
:
– – m = Humidity integral time in minutes
The Humidification load is always assigned to the
Mu
control output for an
adiabatic humidifier On-Off control, and can also be assigned to the
Ys
control output for a 0...10 V– vapor humidifier control.
The Dehumidification
Qdehu
load can only be assigned to the
Ys
control
output for swimming pool dehumidification with outside air.
Humi d i f i c a t i on
De s i r . : 5 0
%
±
0 0
M0.
9
De humi d i f i c a t i on
De s i r .
: 6 0
%
±
0 0
M0.
10
Re l a t i v eHumi d i t y
P r o p . Ba n d :
±
6 . 0%
M2.
11
Re l a t i v eHumi d i t y
I n t e g r . T i me :
6m
M2.
12
De t e c t o r s L a y o u t
– – – – – 6 –
8
M3.
1
19. PREHEATING OR DEW POINT CONTROL
The function is only enabled if detector B4 is connected.
It can be used for the following purposes:
• PREHEATING = preheater battery unit control
according to humidification condensation temperature
through duct mounting detector B4, installed
downstream of the humidification unit.
• DEW POINT = Dehumification value compensation to
limit dew buildup on swimming pool windows – detector
B4 should be placed so that it adheres to the glass
19.
1
Preheating temperature control
If detector B3 or detectors B1 and B3 are connected, the
controller calculates preheating temp.
T
°
pre
according to
the following:
– Condensation curve calculated on the basis of room
temp.(
t
°
r
)
and room humidity (
h%a
)
actual
values
– Minimum value set in
M0.
12
– Manual adjustment in
M0.
13
if applicable
The controller compares preheating temp.
T
°
pre
with the
temp. measured by detector B4, and calculates the load
value for Preheating
Qpre
according to the deviation
detected.
– Minimum value set in
M0.
12
– Manual adjustment in
M0.
13
if applicable
The controller compares dew point temp.
T
°
dp
with the temp. measured by detector B4, and
calculates the reduction of the value required for Dehumidification
H%Dehu
according to the
deviation detected.
19.
2
Swimming pool windows dew point temperature control
The controller calculates the dew point temp.
T
°
dp
according to the following:
– Condensation curve calculated on the basis of room
temp.(
t
°
r
)
and room humidity (
h%a
)
actual
values
– Minimum value set in
M0.
12
– Manual adjustment in
M0.
13
if applicable
The controller compares dew point temp.
T
°
dp
with the temp. measured by
detector B4, and calculates the reduction of the value required for
Dehumidification
H%Dehu
according to the deviation detected.
P r e h e a t i n g T .
Ca l c .
: 1 6 . 0 c
±
0 . 0
M0.
13
Dew p o i n t
T .
Ca l c .
: 1 6 . 0 c
±
0 . 0
M0.
13
De humi d i f i c a t i on
Compe n s a t . :
±
0 . 0
M0.
11
De t e c t o r s L a y o u t
– – – 4 – – – –
M3.
1
Us e d e t e c t o r
B4
PREHEAT I NG
M3.
3
Us e d e t e c t o r
B4
DEW PO I NT
0%
100%
Q
Dehu
50%
–
+
h%
H%
Dehu
Pbu
0%
100%
H%
Humid
Pbu
50%
–
+
h%
Q
Hum
T
°
pre
T
°
rv
25
°
15
°
5
°
20
°
10
°
30
°
20% 30% 40% 50%
60% 70% 80% 90%
h%
a
t
°
r
6
°
10
°
15
°
20
°
25
°
30
°
35
°
t
°
r
T
°
min
T
°
pre
–
+
0%
100%
50%
Q
Pre
t
°
pre
Pb
pre
–
+
0%
100%
H%
Dehu
t
°
v
Pb
pr
T
°
pr
H%
Dehu
