S&P ECOWATT PLUS CRHB 400 N, Manual

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16
EN
Element Position Function
S4
0 Modo MIN/MAX
1 COP / CAV mode, setpoint to 20% full scale - (factory default)
2 COP / CAV mode, setpoint to 30% full scale
3 COP / CAV mode, setpoint to 40% full scale
4 COP / CAV mode, setpoint to 50% full scale
5 COP / CAV mode, setpoint to 60% full scale
6 COP / CAV mode, setpoint to 70% full scale
7 COP / CAV mode, setpoint to 80% full scale
8 COP / CAV mode, setpoint to 90% full scale
9 COP / CAV mode, setpoint to 100% full scale
A Proportional mode, setting A
B Proportional mode, setting B
C Proportional mode, setting C
D Proportional mode, setting D
E Proportional mode, setting E
F Proportional mode, setting F
5.1. CONSTANT PRESSURE (COP)
Operating mode where the roof fan maintains a constant pressure setpoint within the limits of the unit performance
curve. Factory default operation mode.
For verifi cation or activation of COP operation mode:
1. Microswitch S1.1 in OFF position (see locations in section 4.2).
2. Tube marked as “P” connected to left pressure tap of the terminal box.
3. Pressure setpoint adjustment using potentiometer S4. Table below indicates the
setpoint value (Pa) according to the position and roof fan model:
S4
position
CRHB-CRVB
400 N ECOWATT
CRHB-CRVB
450 N ECOWATT
1 150 Pa 110 Pa
2 225 Pa 165 Pa
3 300 Pa 220 Pa
4 375 Pa 275 Pa
5 450 Pa 330 Pa
6 525 Pa 385 Pa
7 600 Pa 440 Pa
8 675 Pa 495 Pa
9 750 Pa 550 Pa