NA 12.54 D EN - 4
3
2
0
1
100 %
100 %100 %
100 %
80 % 80 %50 % 50 %10 % 10 %
120 %
100 %
Valve opening + electric heater *
Calculated by the PI algorithm
Ventilation speed in deadband cutout (3 speeds)
Deadband adjustable by 2 K min. Deadband adjustable by 2 K min.
Proportional band
Proportional band
When exiting the heating or cooling mode, the fan continues to operate for 2 minutes, thereby ensuring post-ventilation of the unit.
HT CT HT CT
The control is Proportional and Integral. It controls the valve(s), the electric heater and the ventilation speeds (3 speeds + Auto
position) simultaneously.
3 - OPERATION
The potential electric heater power is modulated by a time-proportional signal using a 4-minute time base.
All calculations take place in the controller. The control terminal is used to adjust the temperature setpoint, switch between
automatic and manual ventilation, switch the unit on or to standby and, if applicable, to measure the room temperature.
The connection between the terminal and the controller is a 4-wire connection (2 shielded twisted pairs) with the shielding
connected to the comfort unit earth. (see pp.10 & 16)
Regulation on the air:
The regulation V300 also allows a functioning on the air (without gate(crack))
- In this case, the use of pumps of condensats on devices equipped with this mode of regulation stays of the responsibility of the
customer and/or the installer in case of dysfunction of this pump (risk of overflowing of the tub(ferry,high school diploma) of the
condensats of in the permanent irrigation of the cold battery(drum kit)).
- For vertical units equippedwith this control principle, the effect of the continuous radiation from the exchanger coil on the sensor
vill not enable the control system to function correcty. It is the customer's responsibility to find a suitablelocation for optimum
positioning of the sensor and satisfactory operation of the units.
valve
Electricity *
* Case 2T2F
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