Assortment / System Description

Control function
Output signals to the aggregates
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11.5 Output signals to the aggregates
The room controllers forward their output signal to the aggregate signal
converter as 0…100% signal. Each aggregate possess a signal converter that
always converts the 0…100% signal to the aggregate's configured output signal.
Demand and locking signals are coordinated between the individual controls
with the converters to ensure the proper functioning of the application.
Figure: Examples of aggregate converters with locking and demand signals
as well as output signals
Key:
AirFlHldH Locking signals for electric
heating coils to prevent the
electric heating coils from
overheating when the fan coil
plant is switched off (overrun).
HCL Heating coil control
AirFlHReq Demand signal for heating coils to
VAV requiring air volume for
heating
S Segment or segments
AirFlSta Locking that ensures that heating
coils can only be enabled if
volume flow is available.
V IAQ controller output
C Cooling controller output VAV VAV actuator control
H Heating controller output