S&P ECOWATT PLUS CRHB-CRVB 400-630 N Manuel D'utilisation page 22

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.
EN
For verification or activation of COP operation mode:
1. Tube marked as "P" connected to left pressure tap of the terminal box.
2. Microswitch S1.1 in OFF position (see locations in section 4.2).
3. Microswitch S1.2 in OFF position for low pressure setpoint scale (60-300Pa) or in
ON position for high pressure scale (330-600Pa) (see locations in section 4.2).
4. Pressure setpoint adjustment using potentiometer S4. Table below indicates the
setpoint value (Pa) according to the position of S1.2:
Position S1.2
OFF
(factory default)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
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COP operation mode
Position S4 Full scale
1
(factory default) (factory default)
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
CRHB/T-CRVB/T-400-630 N ECOWATT PLUS
10%
15%
20%
25%
30%
35%
40%
45%
50%
55%
60%
65%
70%
75%
80%
85%
90%
100%
Setpoint (Pa)
60
(factory default)
90
120
150
180
210
240
270
300
330
360
390
420
450
480
510
540
600