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Manual Corrigo E Ventilation, revision Q
Functional description
43
Humidification/dehumidification
An analogue output is used to control a humidifier. The output will increase on decreasing humidity.
The cooling output Y3 will be activated for dehumidification through condensation. The output will
increase on increasing humidity. This signal overrides the cooling signal from the temperature
controller so the output can be activated for dehumidification even if the temperature controller
demand is zero.
For good temperature control when using cooling for dehumidification it is important that the cooler
is placed first in the air stream so that the exchanger and heater can be used to reheat the air after
dehumidification.
Digital humidity signal
A digital output signal, "Dehumidification/Humidification", can be used for on/off control of
humidifiers/dehumidifiers. The output signal has an activation value and a deactivation value which
are connected to the humidity controller output. The signal is activated when the humidity controller
output rises above the set activation value and is deactivated when the humidity controller output
drops below the set deactivation value.
If a start signal is needed for a cooling unit or a magnetic valve for DX dehumidification, the digital
output signal “Start P1-Cooling” should be used. In this case, the “pump” stop delay should be set to
0 s.
Inputs and outputs
AI
Room humidity sensor
AI
Duct humidity sensor
AO
Humidity control output 0…10 V DC
DO
Dehumidification/Humidification
5.4 Fan control
General
Fans can be 1-speed, 2-speed or variable speed via a frequency converter.
1-speed fans are controlled using the digital outputs "Start SAF-Normal" and "Start EAF-Normal".
2-speed fans are controlled using the digital outputs "Start SAF-Normal" and "Start EAF-Normal"
as well as "Start SAF-reduced" and "Start EAF-reduced" giving normal and reduced speed
respectively.
Variable speed control uses an analogue output per fan for controlling a frequency converter. There
are two setpoints for each fan, "Normal" and "Reduced". Pressure or air flow control can be used.
Variable speed fans can also be configured to be run with fixed output values.
Compensation curve
When running pressure control, it is also possible to temperature compensate the pressure.
Crosswise interlock
Crosswise interlock of fans can be configured, which e.g. means that if one fan stops, the other fan
will also stop.
Timer outputs, interlock at low outdoor temperatures
The fans are normally controlled by the timer channels for normal and reduced speed. At very low
outdoor temperatures, "2-speed fans" or "pressure controlled fans" can be forced to "reduced speed".
The limit temperature is settable and the function has a differential of 2K.
Содержание Corrigo E15D-S-LON
Страница 1: ...Corrigo E manual Ventilation application Copyright AB Regin Sweden 2013 ...
Страница 5: ...APPENDIX FREQUENCY CONVERTERS 117 ...
Страница 13: ...Manual Corrigo E Ventilation revision Q About Corrigo E 13 Position of the terminals on Corrigo E ...
Страница 28: ...28 Commissioning Manual Corrigo E Ventilation revision Q Other functions Chapter 18 Alarm handling etc ...
Страница 116: ...Appendix ...