Room Compensation; Fix Flow Temperature Setpoint - Siemens QAA73.210 User Manual

Description
Prerequisites
Effect
Description
Prerequisites
Siemens
Building Technologies
6.1.3

Room compensation

With pure room compensation, a PID control algorithm is activated. This is the
preferred control mode if the room temperature is the only compensating variable
available. The selected control algorithm gives consideration to both the actual
value of the room temperature and the current slope (gradient). The P-part is
generated by the control deviation, the D-part from the gradient of the room
temperature. The I-part suppresses continuous deviations of setpoint / actual
value.
The room influence (AMBON) must be activated for the required heating circuits
and, in addition, no outside sensor may be connected.
The flow temperature and thus the room temperature are controlled as a function
of the actual room temperature and its current development. For example, if the
room temperature rises slightly, the flow temperature will immediately be reduced
even if there is deviation of setpoint / actual value apparent yet. To prevent conti-
nuous deviations, the I-part of PID control keeps the room temperature at the
required level.
6.1.4

Fix flow temperature setpoint

The setpoint has to be set manually.
The room influence (AMBON) must be set to "OFF" and, in addition, no outside
sensor may be connected.
Room Unit for Boiler Control
Functions
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CE1U2283en
2015-09-16