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
communicative supply/extract air compact controller featuring a KNX 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 (master) and extract air (slave) 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
3150s57
M
M
~
f1
f2
MV
.
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 and extract air
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, networked VVS G..B181.1E/KN
Supply air Extract air
Assignment VAV Yes (master) Yes (slave)
Damper position signal - type Yes - KNX Bus Yes - KNX Bus
Setpoint compensation fans Yes Yes
Example 3