Summer/Winter Compensation - Siemens RMB795B Basic Documentation

Activation
Operating principle
Application
Setting values
Troubleshooting
Siemens
Building Technologies
8.4.3

Summer/winter compensation

For each room group, summer / winter compensation can be parameterized. It is
active when the outside temperature is available. This function always acts
independently of setting parameter "Setpoint priority".
Summer / winter compensation shifts the setpoint of the RXB/RXL room controllers
according to the outside temperature.
The setpoint shift adjustment on the Comfort and Precomfort setpoints according to
the following diagram:
Δw [K]
Δ
W
E F
W W
w
SpC
SpC
SpC
SpH
SpH
SpH
Summer/winter compensation is used for the following reasons:
• Summer compensation to compensate for the lighter clothing worn by building
occupants
• Winter compensation to give consideration to the cold envelope of the space
(e.g. the windows)
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Room group 1....10 > Setpoint effects >
Operating line
Summer
compensation delta
Summer
compensation end
Summer comp.
starting point
Winter compensation
start
Winter compensation
end
Winter compensation
delta
If there is no outside temperature sensor signal, the controller does not adjust the
setpoint.
Central control unit RMB795B
Function block: "Room group"
Δ
S
TA
F E
S S
t
Range
0...+ 50.0 K
Summer compensation
start...250 °C.
Winter compensation start
Summer compensation end
Winter compensation end
Summer comp. starting point
− 50.0...Winter compensation
start
− 50.0...+50.0 K
Key:
F Summer compensation start
S
E Summer compensation end
S
E Winter compensation end
W
F Winter compensation start
W
w Summer compensation delta
S
w Winter compensation delta
W
Factory setting
0 K
30 °C
20 °C
0 °C
− 10 °C
0 K
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18.01.2012