___________________________________________________________________________ 22NT 1965 A - 03/2019
Two time slots are defined,
ECONOMY and COMFORT
. An operating speed is defined for each of the time slots – either
ECONOMY
speed (parameter
PF04
) or
COMFORT
speed (parameter
PF03
). Depending on the clock, the fans are
controlled at the speed configured in the corresponding time slot. The parameters to be used are as follows:
For each day of the week, it is possible to define whether the particular day is worked or not. The control works
automatically via COMFORT and ECONOMY time slots;
-
Days not worked
: Speeds are given by the parameter
PF13
(default V0).
Note.
If the RTC system clock is incorrect, you can configure parameter
PF05
to set the speed of the two fans.
7.1.1.3
Automatic setting with presence sensor
The use of a presence sensor allows for two configurations (parameter
PF20
) :
7.1.1.3.1
Presence sensor (PF20=0)
The presence sensor controls the speed of the fans.
If activated, the fans will operate at a set speed (parameter
PF12
).
When the sensor no longer detects any presence, the fans continue to operate at the above-mentioned speed for a
pre-determined period of time (parameter
PF24
).
7.1.1.3.2
BOOST (PF20=1)
The presence sensor controls the speed of the fans.
If activated, the fans will operate at COMFORT speed for a defined period of time (parameter PF 27)
At the end of this period of time, the fan speed will be fixed at its initial operating mode.
It is possible to cancel this mode by pressing on the input in a pulsed manner.
7.1.1.4
Automatic setting via DCV sensor
This function is activated by configuring
PF01=3
. In this configuration, the fans in the COMFORT zone are controlled
based on the value read by the CO
2
sensor; the controller sets the speed of the fans according to these values. The
fans maintain this speed for a defined period of time (parameter
PF26
).
To use this function, the DCV input must be activated and configured (parameter PH42) according to the sensor used:
•
PH42=1: VOC (Volatile Organic Compounds) - CO2 ppm sensor
•
PH42=2: IAQ sensor (indoor air quality) - % Humidity sensor
•
PH42=3: Exterior control (0-10 V) - 0-10 V signal
The associated linearisation values (parameters
PH03-PH04 or PH07-PH08
) must also be configured. To control the
control system, you must configure the parameters
PF14
-
PF15 or PF16-PF17 or PF18-PF19,
which indicate the
correspondence between the CO2, IAQ or 0-10 V sensor and each of the three speeds.
The minimum speed in this state is speed 1.
Example. CO2 sensor default parameter
