Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Fan speed controller, demand-controlled (basic type P) 03.10.2011
 Primary air handling unit with supply/extract air fan
 Individual room control (RDG400KN) for VAV single duct system with supply air
compact controller with analog damper position signal.
 Data exchange between the primary air handling unit and the individual room
controllers via KNX with the following functions:
 Optimization of the pressure setpoints for supply air and extract air using the
damper positions VAV supply air compact controller.
 Demand-controlled plant operation and optimization of the supply air setpoint by
heat and refrigeration demand signals.
~
KNX
T
MV
.
f1
f2
RMU-B
KNX
M
M
~
f1
f2
p
p
Configuration overview
Primary air handling unit RMU7x0B
Setting values Supply air
Fan
Extract air
Fan
Control mode Duct pressure (DP stat) Duct pressure (DP stat)
Pressure optimization Supply-extract air in parallel
Pressure setpoint 220 Pa 230 Pa
Pressure setpoint reduction 160 Pa 160 Pa
VAV supply air damper position (0…100%) VAV extract air damper position
(0…100%).
Demand-controlled supply air temperature control
Supply air limit value max 26°C
Supply air limit value min 15°C
Supply air heat demand (0…100%)
Supply air refrigeration demand (0…100%)
Individual room control RDG400KN, VAV controller G…B181.1E
Supply air Extract air
Assignment VAV Yes No
Damper position signal - type Yes - analog 0-10V DC via RDG400KN No
Setpoint compensation fans Yes Yes, common control signal from
VAV controller supply air
Example 2