Biddle HR 25 - Page 47

HR MANUAL OPERATION VIA B-TOUCH
Manual version 4.1 (26-07-2018)
en-47
en
Release delay input 1
When you use input 1, you can make the effect of an input sig-
nal persist for some time after the signal has been given
(‘release delay’).
62. A
utomatic CO2 control Only with use of automatic CO
2
control
The unit can automatically adjust the fan speed and, if
required, the recirculation damper to the CO
2
level.
The default values for the CO
2
levels can be adjusted in this
menu.
Fan speeds with stepped controls
Note:
n The current CO
2
level must be measured via the
building management system (BMS) or via a sensor
connected to the unit.
Note:
n If no CO
2
sensor is detected, the device will operate
in fan setting 1 (ventilation).
Note:
n In the building management system (BMS) you can
indicate (register address 350) whether the speed is
to operate in a continuously variable manner or at
set speeds. The curve for continuously variable
operation is also based on the three CO
2
levels to
be indicated.
65.
Control panel input Not applicable.
CO
2
LEVEL FAN
SPEED
< 1 without recirculation module 0 (off)
with recirculation module 1 (recirculation)
< 2 1 (ventilation)
< 3 2 (ventilation)
> 3
3 (ventilation)
CO
2
LEVEL DEFAULT
VALUE
1 800 ppm
2 1000 ppm
3 1200 ppm