Instruction manual
GROW
BASE EC
PRO
21
This graph shows procedure of the timing controlled CO
₂
function
without
a CO
₂
sensor
.
8
Appendix for chapter 6
To keep the menu descriptions clear,
additional information is provided in this
appendix:
Regarding
2.14 Negative pressure in %
:
For better understanding, here two
examples are given.
Example 1:
When using to equal fans for
intake and exhaust, a negative pressure of
20% means that the intake fan will generate
an air flow 20% smaller compared to the
exhaust fan.
Example 2:
When operating a very small
intake fan, a negative “negative pressure”
can be chosen. This will increase the fan
speed of the intake fan compared to the
exhaust fan. When a negative pressure of
-30% is set and the exhaust fan is operating
at 60%, the intake fan will operate at 90% of
its maximum speed.
Please also pay attention to the information
below.
Regarding
“Exhaust fanMAX”
:
Please note that this value cannot be
smaller than the value set in “Exhaust fan
MIN”.
To always turn off the exhaust fan, “OFF”
can be selected. This is possible if “Exhaust
fan MIN” is also set to “OFF”.
Please note that his value cannot be larger
than 100% + ”negative pressure in %”. This
means that the maximum possible value
can be below 100% in case a negative
“negative pressure” is set. (e.g. -10%)
