Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Aggregates 03.10.2011
B9
T
B2
N1
T
Xx Yx Xx
T
Xx
Bx
150 mm
T
B5
OT input Efficiency 2 Efficiency 1
Due to heat radiation, the distance between sensor B
X
and the air heating coil LH
must be at least 150 mm.
B9
T
B2
N1
T
Xx Yx Xx
T
Bx
Xx
T
B5
OT input Efficiency 2 Efficiency 1
B2 Extract air temperature sensor
B5 Room temperature sensor
B9 Outside temperature sensor
Bx Temperature sensor after heat recovery equipment
Xx Universal input
Yx Modulating output
N1 Universal controller
Conditions
To be able to determine the efficiency and to issue service messages, the following
conditions must be satisfied:
 Difference between room or extract air temperature and outside temperature > 5
K
 Output of heat recovery equipment = 100% load
 Fans are switched on
 Outside temperature is lower than the set threshold value
Measuring arrangement
supply air
Note
Measuring arrangement
exhaust air
Key for both measuring
arrangements