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NT00000603-JBRB-ECOWATT-PR-AN-191202
6.10
CAV: Constant airflow – 2 settings
This operating mode is used to maintain a constant airflow despite network pressure drop changes. 2 set
-
tings can be configured, called minAV and aveAV.
To switch from one setting to another, a 2V BCCA 3-position switch must be wired (see § "5.7 Electrical
connection of a 2V BCCA", page 21)
Operating logic:
•
When the DI1 contact is closed, the fan controls the airflow setting configured as minAV,
•
When contacts DI1 and DI3 are closed, the fan controls the airflow setting configured as aveAV.
When your switch is wired, the RMEC controller must be configured as follows:
•
DI3 input configuration.
•
Setting of 2 airflow set points.
Settings possible at installer level only (§ "6.3 Access levels", page 25).
6.10.1
Configuration on DI3 input as airflow setting
Default
screen
PRESSURE … Pa
AIRFLOW ...
m3/h
SYSTEM
CONFIGURATION
5 x
4 - ON-OFF AND
DIGIT. INPUT CONFIG
5 x
P422 DIGIT.
INPUT CONFIG 3
INPUT CONFIG 3
: DEP. FILTER
INPUT CONFIG 3
:
AIR VOLUME SETTING
6.10.2
Setting 2 airflow set points
Default
screen
PRESSURE … Pa
AIRFLOW ...
m3/h
Min. CAV AIRFLOW
SETTING: 0M3/H
After confirmation, the value flashes
Min. CAV AIRFLOW
SETTING: _M3/H
or
Set the desired value
Min. CAV AIRFLOW
SETTING: 500*
m3/h
* Example
Default
screen
PRESSURE … Pa
AIRFLOW ...
m3/h
2 x
Ave. CAV AIRFLOW
SETTING: 0M3/H
After confirmation, the value flashes
Ave. CAV AIRFLOW
SETTING: _M3/H
or
Set the desired value
Ave. CAV AIRFLOW
SETTING: 1,000*
m3/h
* Example
