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3.1.2.2.2.4
Wiring to several circuits in parallel with, for each circuits, 2 fans whose
airflows are independent
3.1.2.3
CPs MODE
The airflow is modulated so as to maintain constant a certain pressure value measured by a pressure
sensor properly located in the ducting.
3.1.2.3.1 Setup CPs Mode with Airflow Modulation
1
LANGUAGE
2
DISPLAY m³h?
3
DISPLAY
Pa?
4
DISPLAY
m/s?
5
SURFACE?
x,xxxxm2
6
FAN TYPE
7
# FAN?
8
F2=%F1 ?
9
Mode
10
% on K3?
11
CONFIG
TIME? N
12
TIME
SEGMENT ?N
13
DAY OFF
N
14
INIT CPs REF?
N
15
INIT via
AIRFLOW?
K1 closed soft start
K1 open soft stop
K2 0-10V signal for fan 1, maximum
impedance allowed: 1500 Ω
K3 0-10V signal for fan 2, maximum
impedance allowed: 1500 Ω
Caution: use gold-plated contacts only.
Choose the language (English, French, Dutch, German)
If yes, the airflow of the fan will be displayed.
If yes, the pressure of the fan will be displayed (not available for fans 720999 and
720998)
If yes, the speed of the air of the fan flow will be displayed
If DISPLAY Pa = yes, enter the area of the blowing duct.
Choice of the fan type (CID – see label on fan or
fan with speed feedback or 720998 for generic backward fan with run
contact
).
Select number of fans connected to CB (F1 or F1+F2).
If # FAN=F1 + F2. Choose yes in case of dependent fans: the airflow of fan 2 is
defined as the airflow of fan 1 per a ratio defined in menu item %F2/F1. Choose no
in case of independent fans: the 2 fans have their own setpoints.
Choice of the working mode (CA, LS, CPf, CPs). Select CPs
If # FAN =F1 or F2=%F1 = yes. Select multiplier for CPs resulting airflow when
terminals +12V and K3 are closed ('night' setup).
Select Y to configure time and date. See § 3.2.1
Select Y to activate the time segment scheduling function. See § 3.2.1
Select Y if you wish to activate the day OFF option. See § 3.2.1
Setup of CPs fan pressure instruction?
Define if the constant pressure assignment value (V) for the fans:
- is to be automatically determined as a consequence of a selected airflow value
- is to be typed in by the user: select PRESSURE
720999 for generic backward
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