Trane CCE-Compact Series, Установка, эксплуатация и обслуживание, Страница: 68 / 115

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Speed control
Similar to the airflow rate control the speed for economy, comfort and night setback mode can be
set. The fans are operated at the set speed, regardless of airflow rate or duct pressure.
In addition, the speed is increased by air quality control or dehumidification when the air quality is
poor or the humidity is high. Also, an adjustment of the speed for poor air quality and high humidity
is possible. The setting of the speed for night setback, air quality and dehumidification occurs in
separate menus, which can be entered directly.
Setpoint Description Default
Supply Eco Supply fan speed for economy mode 40%
Supply Comfort Supply fan speed for comfort mode 80%
Return Eco Return fan speed for economy mode 40%
Return Comfort Return fan speed for comfort mode 80%
Supply set Current supply fan speed setpoint ...%
Return set Current return fan speed setpoint ...%
Table 10: Speed settings
The setpoints for night setback, air quality and humidity control can be found in the chapters night
setback (
14.5 Night setback ), air quality control ( 14.4.1.3 Fan speed ) and humidity control
( 14.4.1.1 CO2 sensor ).
14.2 Temperature setpoints
The control mode for the temperature control and the corresponding setpoints are set via the tem-
perature setpoints. Depending on the execution of the AHU, additional calculated setpoints for the
saturation temperature are displayed over which the dehumidification is controlled.
Temperature setpoints 1/13
Control mode RetCasc
Actual mode Auto Winter
Heat Eco 18.0°C
Heat Comfort 20.0°C
Cool Eco 24.0°C
Cool Comfort 22.0°C
Room 21.0°C
Figure 91: Temperature setpoints
14.2.1 Operating mode of the temperature control
There are up to 5 operating modes for the temperature control, which can be set by the user. If no
room unit is present, then only 3 operating modes can be selected. If the AHU is a pure supply air
unit, then the return air control cannot be set. In order to make the right setting is the understanding
of the individual operating modes very important. Service engineers or planners can give you more
information.