9.9 Summer / winter compensation
9.9.1 Activation
Summer / winter compensation is only activated for controller 1, basic type A.
Controller 1, basic
type A
It is always active if an outside temperature signal is available.
9.9.2 Operating principle
This function shifts the room temperature controller's setpoint as a function of the
outside temperature.
Function
This setpoint shift acts on the Comfort and Economy modes according to the
following diagram:
Diagram
w
Δ
w
[K]
SUM-END
SUM-STTWIN-END WIN-STT
SETCOOL
SETCOOL
SETHEAT
SETHEAT
SUM-D
WIN-D
3101D08de
TA
TA
Legend:
WIN-D Winter comp. delta
SUM-D Summer comp. delta
WIN-END Winter comp. end point
WIN-STT Winter comp. starting point
SUM-STT Summer comp. starting point
SUM-END Summer comp. end point
OT Outside temperature
w Setpoint
Δw Setpoint shift
• Upward shift at low outside temperatures acts on heating and cooling
Explanations for the
diagram
• Downward shift at low outside temperatures acts on heating
• Upward shift at high outside temperatures acts on cooling
• Downward shift at high outside temperatures acts on heating and cooling
The purpose of summer / winter compensation is as follows:
Application
• Summer compensation to compensate for the lighter clothing worn by building
occupants
• Winter compensation to compensate for cold surfaces in the room, such as the
windows
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Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Controller (CTLOOP x) 29.08.2008