Page 62 - IOM / ROOF-TOP FLEXY™ Series
REGULATION IN DEHUMIDIFYING
REGULATION IN HUMIDIFYING
100%
0%
SETTING THE FRESH AIR MINIMUM
The minimum value for opening the damper to outside air can
be set by instruction (see configuration of operating zones).
This value is expressed directly as a percentage.
CO² SENSOR
Where a CO² sensor is connected to the unit, the value of the
fresh air minimum is calculated according to the CO² ratio.
The value measured by the sensor can be read in variable
17.
2000 ppm
CO2
0 ppm
100%
Setpoint 48 defines the number of ppm up to which the fresh
air minimum is still achieved. Setpoint 49 defines the number
of ppm from which 100% fresh air is used.
CLIMATIC™ PARAMETERS
ENTHALPY FUNCTION
This function is used to control the use of the economiser
register according to air enthalpy. If the outside hygrometry is
greater than the inside hygrometry, the respective enthalpy
values are then calculated. According to the result obtained,
input of new air is optimised.
COMPRESSOR-RELATED FUNCTIONS
Anti-short cycle
The CLIMATIC™ provides protection of the compressors
against frequent restarts. This is why the compressors cannot
be started, even if requested to do so by regulation, unless
the time since they were last put into operation is greater than
six minutes.
Equalisation of compressor operating times (F
series)
The CLIMATIC™ program is organised to equalise
compressor operating times
Defrost function
For heat pump units and air condensation units, cycle inversion
phases are programmed for defrosting the outside coil.
Defrosting is activated depending on :
- outside temperature (limit set by setpoint 85),
- coil temperature (limit set by setpoint 86),
- with overall weighting by an icing constant (setpoint 87).
Humidity band %
setpoint 65
Setpoint 48
Setpoint 49
Dehumidification
Hysteresis
(setpoint 69)
Hysteresis
(setpoint 69)
Activation differential
(setpoint 70)
Activation differential
(setpoint 70)
Hysteresis
(setpoint 69)
1st stage
2nd stage
3rd stage
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