Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Philosophy of basic types 03.10.2011
Auxiliary functions:
 Indoor air quality control acting on mixed air dampers or fan speed
 Frost protection
 Preheating function
 Sustained mode
 Night cooling
 Smoke extraction / Fire alarm off
The QAW740 room device can be used.
3.2 Basic type P, primary air handling
Typical field of use: Demand-dependent control of an air handling plant with VAV
individual room control.
M M
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p

p
f
1
f
2
T
3150S02

p

p
T
f
1
f
2

p
T
M
M
M
T
T
V
M
T
V
M
A RMU7..B, basic type P is used to implement air handling; the rooms have an
individual room controller. All controllers connected via KNX and exchange the
relevant operating data.
Operating mode: Demand-dependent by KNX signal.
The air handling plant is switched on and off via the demand signals (air distribution
zone) for the individual room controllers. The room controller operates with room
operating modes Comfort, Economy and Protective Mode.
Use of Controller 1: To demand-dependent setpoint by KNX signal.
The supply air temperature control works with a demand-dependent supply air
setpoint; connected individual room controllers provide or coordinate the setpoints.
Fans: Optionally speed-controlled fans. Individual room controllers control to
variable air flow. The following variants are available:
 Constant pre-pressure without feedback on the damper position.
 Demand-controlled pre-pressure. Individual room controllers report the damper
position via KNX to the fan controller which then optimizes the pre-pressure
setpoint.
Supplemental functions for control of an air handling plant.
 Indoor air quality control acting on mixed air damper
 Frost protection
 The RMU7..B time switch can be preset to the individual room controller via KNX
The QAW740 room device cannot be used
Note
Example: Supply air
temperature, demand-
controlled
Features of basic type P
Note