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Building Technologies
Modular Heating Controller RMH760B
CE1P3133en
HVAC Products
7 Heat demand and heat requests
05.02.2007
Manual setpoint preselection
Main
controller
Primary
controller
KNX
Heat request DC 0...10 V
KNX
Heat request heating curve
Heat request DC 0...10 V
Heat request contact DHW
Heat request heating circuits
Heat request DHW
Heat request primary controller
Internal
heating circuit
Main flow
maximum setpoint
Main flow
setpoint
Service level
Heat request individual
room, radiator
Heat request individual
room, air heating coil
Heat request air handling
KNX
Internal
DHW heating
KNX
31
3
3
Z
1
0
e
n
Heat request contact frost protection
Heat request heating circuits
Heat request DHW
Heat request primary controller
Heat request heating curve
Heat request contact DHW
Heat request contact frost protection
Heat request individual
room, radiator
Heat request individual
room, air heating coil
Heat request air handling
Setpoint
boost
Heat demand
transformers
Heat demand
transformers
Setpoint
boost
Setpoint
boost
+
+
+
+
+
+
+
+
The connection via the main controller and primary controller is described in chapter 8
“Main controller and primary controller”.
7.2
Heat demand outputs
The main flow setpoint (without giving consideration to limitations) can be delivered via
an analog output (DC 0…10 V). For that, function “Heat demand modulating“ on the
main controller must be activated. The output can be matched to specific situations.
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Main controller > Heat demand modulating
Operating line
Range
Factory setting
Value low
–150…50 °C
0 °C
Value high
50…500 °C
100 °C
Limit value
0…140 °C
10 °C
The heat demand relay (to be configured on the main controller also) can indicate
whether there is demand for heat. The switching points can be adjusted.
Main menu > Commissioning > Settings > …
or
Main menu > Settings > Main controller > Heat demand relay
Note
