Instruction manual
GROW
BASE EC
PRO
20
3.6
Intake MIN CO
₂
Set the
minimum fan speed
of the intake
fan for a standard duct fan during the
“CO
₂
period”
. If this value is undercut in the
controller’s operation, the intake fan will be
switched off to maintain the negative -
pressure inside the grow room. The
minimal possible fan speed is 10%.
Additionally, “OFF” can be selected,
whereby the fresh air fan will always be
disabled during daytime.
This value is only relevant for standard duct
fans. EC fans always turn off at 10%.
Ensure that the fan is still rotating at the set
minimum fan speed and the airflow is
sufficient for cooling the motor.
3.7
Room volume
Set the volume of the room to which you
wish to dispense CO
₂
.
Unit: (length * height * width) m*m*m = m³
3.8
CO
₂
flow
Enter the flow set on the CO
₂
armature or
specified for your CO
₂
generator.
Unit: l/min = liter / minute
3.9
CO
₂
concentration
Set the desired CO
₂
concentration.
(ppm = parts per million)
The next two screens are only relevant
when the time controlled CO
₂
function
without a sensor is used.
3.10
CO
₂
absorption period
Set the time to wait until the plants have
absorbed the CO
₂
This value is
only
relevant in the
time
controlled
CO
₂
function.
3.11
Air exchange
Specify how long the fans should run in
“day mode” to exchange the room air after
a CO
₂
period. If you do not want the air to
be replaced, a time of zero seconds can be
set.
This value is
only
relevant in the
time
controlled
CO
₂
function.
3.12
Return to “1. Setup”
Press the rotary switch while this screen is
displayed to
return
to menu level
“2
setup”
.
Press to
F
return
BC
Air exchange
C
F
30sec
BC
CO2 absorbtion
F
period
C
240sec
BC
Concentration
F
CO2
C
1200ppm
BC
Flow
F
CO2
C
10l/min
BC
Room volume
C
F
18m
l
3
BC
Set intake off
F
CO2
C
m
30
A
BC
