Heating Circuits - Rehau NEA SMART 2.0 Service Manual

9.1.1

Heating circuits

The parameters are used as
- Default values if a mixed circuit is specified during the configuration
- Reference values during supply of heating system (e.g. ceiling) via
a heating circuit, which was parameterized for different system
(e.g. floor)
Application:
Building is equipped with floor heating, only one or a few rooms have
ceiling heating and are supplied by the same circuit)
The for each heating circuit (1-5) individual parameterisation of the
flow temperature can be found in this parameter area.
To find in App:
Home  More  Settings  Installer  Control Parameters  Heating  Heating Circuits
Key Text in parameter menu Comment
MIXH01 Heat curve starting point
normal mode
MIXH02 Heat curve starting point
absence mode
MIXH03 Heat curve slope in
normal mode
MIXH04 Heat curve slope in
absence mode
MIXH05 Minimum value of sup-
ply temperature in heating
mode (normal)
MIXH06 Minimum value of
supply temperature in hea-
ting mode (absence)
MIXH07 Maximum value of
supply temperature in hea-
ting mode (normal)
MIXH08 Maximum value of
supply temperature in hea-
ting mode (absence)
MIXH09 Filter time for outside
temperature
MIXH10 Pilot room influence on
heating limit
MIXH11 Flow temp. Reduction in
reduced mode
94
The heat curve starts at this point, the value for the
flow temperature is equal to the outside temperature
here. Valid for normal mode (not absence mode)
Like MIXH01, but for absence mode
Defines the slope of the heating curve.
Valid for normal mode (not absence mode)
Like MIXH03, but for absence mode
Minimum value for flow temperature at start of hea-
ting mode, independent from heat curve function.
Valid for normal mode (not absence mode)
Like MIXH05, but for absence mode
Maximum limit for flow temperature at very low outsi-
de temperatures, independent from heating curve
function. Valid for normal mode (not absence mode)
Like MIXH07, but in absence mode
For start and end of heating mode and for the calcula-
tion of flow temperature not the actual value of outsi-
de temperature, but the timely filtered value is used.
The average deviation of the pilot rooms affects,
weighted with this parameter, the start/end of heating
mode (shift of heating limit)
In reduced mode (economy mode) the flow tempera-
ture is reduced by this value
During the start-up, a parameter set is created for each heating circuit
in line with the utilisation of the heating circuit (floor/wall, ceiling, BKT).
The following additional parameters are specified individually for each
circuit:
Legend for Base value:
0 : Floor
1 : Wall
2 : Ceiling
Min
10
10
0
0
15
15
20
20
0
0
0
Max Base Unit
value
40 0 : 20 ° C
1 : 20
2 : 20
40 0 : 17 ° C
1 : 16
2 : 16
5 0 : 6
1 : 5
2 : 5
5 0 : 5
1 : 4
2 : 4
50 0 : 25 °C
1 : 25
2 : 25
50 0 : 20 ° C
1 : 20
2 : 20
70 0 : 45 ° C
1 : 40
2 : 40
70 0 : 40 ° C
1 : 35
2 : 35
99 0 : 48
1 : 48
2 : 48
5 0 : 1
1 : 1
2 : 1
10 0 : 4
1 : 4
2 : 4