17
EN
5.2. CONSTANT AIRFLOW (CAV)
Operating mode where roof fan maintains constant airfl ow setpoint within the limits of the unit performance curve.
For verifi cation or activation of CAV operation mode:
1. Microswitch S1.1 in ON position (see locations in section 4.2.).
2. Tube marked as “P” connected to right pressure tap of the terminal box. Tube
marked as “V” connected to left tap.
3. Airfl ow setpoint adjustment using potentiometer S4. Table below indicates the
setpoint value (m³/h) depending on position and roof fan model:
S4
position
CRHB-CRVB
400 N ECOWATT
CRHB-CRVB
450 N ECOWATT
1
1100 m³/h
1200 m³/h
2
1650 m³/h
1800 m³/h
3
2200 m³/h
2400 m³/h
4
2750 m³/h
3000 m³/h
5
3300 m³/h
3600 m³/h
6
3850 m³/h
4200 m³/h
7
4400 m³/h
4800 m³/h
8
4950 m³/h
5400 m³/h
9
5500 m³/h
6000 m³/h
5.3. VARIABLE AIFLOW VOLUME (VAV)
Operating mode where fan performs a linear proportional regulation depending on up to three external analog inputs
AI1, AI2 and AI3 (see locations in section 4.2., terminals J7, J8 and J9). The inputs may be 0-10V or 4-20mA type. If more
than one analog input is installed, the control system will take as a reference the one that at each instant means a higher
speed value.
For verifi cation or activation of VAV operation mode:
1. Selection of one of six VAV operation modes using S4 potentiometer and positions A – F (see locations in section 4.2.).
There are six previously parametrized operation modes adapted to sensor type to be wired and described in table
below:
Summary of Contents for ECOWATT PLUS CRHB 400 N
Page 1: ...CRHB CRVB 400 450 N ECOWATT PLUS ES EN FR...
Page 39: ...39...
