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6.7
Summer compensation
The function is basically available for all systems with a cooling coil (Anl 1, Anl 4 to Anl 9):
This summer compensation function lets the temperature set points for supply air, exhaust air
and room be shifted in a linear manner by means of two coordinates. For this purpose, the
following parameters must be defined:
4
Summer compensation when the outdoor temperature is greater : from this outdoor tem-
perature onwards, the temperature set point is raised
4
Set point at an outdoor temperature of 32 °C determines the gradient of the characteristic
curve.
Example:
In an air-conditioning system, the supply air temperature set point should be raised when the
outdoor temperature is greater than 25 °C. At 32 °C, the supply air temperature set point
should be 26 °C.
4
Supply air temperature set point = 22 °C
4
Summer compensation when the outdoor temperature is greater = 25 °C
4
Set point at an outdoor temperature of 32 °C = 26 °C
Parameters
Summer compensation when the
outdoor temperature is greater
Set point at an outdoor temperature of 32 °C
6.8
Fan operation dependent on room temperature/room humidity
You can select this function with room temperature control, room temperature cascade con-
trol, room humidity control, room humidity cascade control or with room humidity measure-
ment (Fb7 = ON or Fb18 = ON (AE4F7)) or with a two-speed fan operation or with variable
air volume control.
The fan speed 2 is activated, parallel to the associated times-of-use, depending on the room
temperature and/or room humidity or the fan speed increases depending on the room tem-
perature and/or room humidity. In systems that have a mixed air chamber, the outdoor air
rate is additionally increased if the set point of the room humidity is exceeded.
Functions
Two-speed fans over BA2/BA3
WE
Range of values
26 °C
–50 to °C
26 °C
0 to 40 °C
WE
Configuration
OFF
Fb11 = ON (for two-speed fans)
BA2 = BA3 = ON (–> page 63)
BA2 = OFF, BA3 = ON (–> page 63)
0 sec
Delay time / 0 to 60 sec
Control functions
57
EB 5477 EN
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