IOM / ROOF-TOP FLEXY™ Series - Page 57
REGULATION IN DEHUMIDIFYING
REGULATION IN HUMIDIFYING.
Humidity band %
Set point 65
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.
Consigne 46 Consigne 47
2000 ppm
CO2
0 ppm
100%
Set point 46 defines the number of ppm up to which
the fresh air minimum is still achieved. Set point 47
defines the number of ppm from which 100% fresh air
is used
CLIMACLIMA
CLIMACLIMA
CLIMA
TIC™ PTIC™ P
TIC™ PTIC™ P
TIC™ P
ARAR
ARAR
AR
AMETERSAMETERS
AMETERSAMETERS
AMETERS
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.
In the case where there is no outside hygrometry
detector connected to the unit, the outside absolute
hygrometry is compared with the value input in set point
48 (note: value entered in g/kg of dry air).
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 set point 81),
- coil temperature (limit set by set point 82),
- with overall weighting by an icing constant (set
point 83).
1st stage
Hysteresis
(set point 53)
Hysteresis
(set point 53)
Hysteresis
(set point 53)
Activation differential
(set point 54)
Activation differential
(set point 54)
Cooling
2nd stage
3rd stage
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