ViM JBRB ECOWATT PR, Инструкция по эксплуатации

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6/48 NT00000603-JBRB-ECOWATT-PR-AN-191202
VAV mode: Variable airflow control according to analogue input
In VAV mode, the airflow varies linearly, according to a setting signal (voltage 0-10V or current 4-20mA),
between a min. airflow and a max. airflow to be set in the RMEC controller. Each signal value corresponds
to an airflow maintained constant irrespective of network pressure drops.
Principle:
Setpoint signal
Airflow (m
3
/h)
Mini air
flo
w
setpoin
t
Max air
flo
w
setpoin
t
120 240
360
480 600 720 840 960
1080
1200
10%
0
20%
30%
40%
50%
60%
70%
80%
90%
100%
The signal can be transmitted by different types of sensors:
•
SCO2 – CO2 sensor (0-10V or 4-20mA), in this case it will be displayed in ppm
•
SHUR – Hygrometry sensor (0-10V or 4-20mA), in this case it will be displayed as a %
•
STEM – Temperature sensor (0-10V or 4-20mA), in this case it will be displayed in °C
Or by a potentiometer:
•
CVF
• REB ECOWATT ®
The airflow can be varied over part of the sensor’s measurement range or part of the potentiometer’s
voltage range (see § "6.11 VAV: Sensor-type analogue input airflow control", page 30 and § "6.12 VAV :
Potentiometer-type analogue input airflow control", page 34).