Room Temperature Control - Rehau NEA SMART 2.0 Service Manual

9.4

Room temperature control

Legend for Base value:
0 : Floor
1 : Wall
2 : Ceiling
To find in App:
Home  More  Settings  Installer  Control Parameters  Room Temperature Control
Key Text in parameter menu Comment
RO1(n) Proportional bandwidth
heating mode
RO2(n) Proportional bandwidth
cooling mode
RO3(n) Pulse period time room
temperature control
RO4(n) Minimum pulse length
room temp. Control
RO5(n) Integral time room tempe-
rature control
RO6(n) Integral part limitation
RO7(n) Optimization room tempe-
rature control
RO8(n) Pulse length threshold for
continous mode
RO9(n) Shift of proportional band
R10 Room temperature for
freeze protection
Tab. 9-6 Parameter room temperature control
98
Proportional band of room temperature control in he-
ating mode. The proportional band affects the imme-
diate reaction to temperature change. The bigger the
band, the weaker the reaction.
Like RO1, but for cooling mode
Time period of the pulse width modulation signal used
for room temperature control.
Pulses below this value will be restrained
Integral time in minutes of controller in heating- and
cooling mode. Affects the reaction to permanent devi-
ation to the set point. The longer the time, the slower
the reaction. 0 means OFF.
Limitation of integral part in control signal in %
Level of room temperature control optimization
Pulses with a length above this limit (percentage of
pulse width period) result in a permanent activation of
drives (continuous signal)
Defines the middle position of p-band. 0% means
symmetrical to set point. Can be reduced to –25% or
more in case of well adjusted flow temperatures and
well insulated buildings.
Min Max Base
value
0 10 0 : 4
1 : 2
2 : 2
0 10 0 : 4
1 : 2
2 : 2
5 120 0 : 5
1 : 5
2 : 5
0 30 0 : 4
1 : 3
2 : 3
0 600 0 : 180
1 : 90
2 : 90
0 100 0 : 30
1 : 30
2 : 30
0 10 0 : 5
1 : 5
2 : 5
50 100 0 : 80
1 : 80
2 : 80
–50 50 0 : 0
1 : 0
2 : 0
3 15 8
Unit
K
K
min
min
sec
%
K
%
%
°C