16
Name
Default value
Range
Description
FCOEF
1.00
0,5 ± 2
Exhaust/supply ratio:
Exhaust fan speed ratio to supply fan.
Exhaust = FCOEF x Supply
FMIN
10%
10 ± 25%
Fan minimum speed:
The speed below which the fan cannot go
down during speed modulation
FMOD
7
o
C
-
10 ± 10
o
C
Fan modulation start:
Defines when the supply fan starts
modulating to protect the exchanger. This
is the number of degree C above the
exchanger protection value ELIM.
START
0 sec
0 ÷ 100 sec
Start delay
STOP
0
or
30
sec
(according to the
heating type)
0 ± 100 sec
Stop delay (for units with el. Heating min.
30s)
4.2.12
CO
2
CONTROL
The CU24V1 controller has the ability to control CO2. The CO2 control is performed
automatically after the CO2 detector has been detected in the X1 input of CU24V1. CO2
regulation is achieved either by adjusting the fan speed or by adjusting the dampers. If the
damper parameter is set
DAMP = AUTO
, the damper is adjusted. If
DAMP
has a value other
than
AUTO
then the regulation is controlled by fan speed.
4.2.13
P
ROGRAMMING THE FAN GEARS
Name
Default value
Range
Description
SPD1
25%
10 ± 100%
Fan speed for gear 1
SPD2
50%
10 ± 100%
Fan speed for gear 2
SPD3
75%
10 ± 100%
Fan speed for gear 3
SPD4
100%
10 ± 100%
Fan speed for gear 4
4.2.14
P
UMP PARAMETERS
Name
Default value
Range
Description
PUMPON
0
o
C
-
25 ± 15
o
C
Outdoor temperature below witch the
heater pump is switched on
4.2.15
U
SER
F
UNCTIONS
E4,
E5
With the ERC20 control unit, specific operation functions can be configured at input E4. If the input is
used, then you can use the RMC20 panel to select one of the following functions, which will be
performed by the control after the signal is started at the E4 input.
