IOM / @DNOVA-µAC-0907-E - Page
r = regulation parameters
r1 temperature set point (cooling)
Sets the temperature set point (diag. at the end of the
paragraph). If the model configured using parameter H1 is CW
cool/heat, this set point represents the cooling set point (see
parameter r9). This is activated by the digital input ID7.
Range: rA÷rb °c, °F Def.: 20.0
r2 cooling differential
Sets the differential for cooling (see diagrams at the end of
the paragraph).
Range: 0.1 ÷11.0°c 0.1÷ 19.8°F Def.: 3.0
r3 Heating differential
Sets the differential for heating (see diagrams at the end of
the paragraph).
Range: 0.1÷11.0°c 0.1÷ 19.8°F Def.: 2.0
r4 temperature dead zone
Sets the dead zone (see diagrams at the end of the paragraph).
When the temperature measured by probe B1 is within the
dead zone, all actuators are off, except for in the following
cases:
• the minimum ON time or the OFF delay between the two
compressors has not yet elapsed (C1,C5);
• the compressors (or the valve) are operating following a
request for dehumidification.
Range: 0.1÷20.0°c 0.1÷36.0°F Def.: 1.0
r5 Humidity set point
Sets the humidity set point (see diagrams at the end of the
paragraph).
Range: rc÷rd%rH Def.: 50
r6 Humidification differential
Sets the humidific. differ. (see diagrams at the end of the
paragraph).
Range: 1÷20%rH Def.: 4
r7 Dehumidification differential
Sets the dehumidific. differ. (see diag. at the end of the
paragraph).
Range: 1÷20 rH Def.: 3
r8 Humidity control dead zone
Sets the dead zone (see diagrams at the end of the paragraph).
When the humidity measured by probe B3 is within this zone,
the 0-10V output, which activates the humidifier, is at 0 and
dehumidification is not active.
Range: 1÷20%rH Def.: 2
r9 temperature set point (heating)
Heating set point for the model CW cool/heat (H1= 2). This is
activated by the digital input ID7.
Range: rA÷rb°c, °F Def.: 18.0
rA Minimum temperature set point
Limits the minimum value of parameters r1 and r9.With
compensation of the set point, using the external air probe,
this value also represents the lower limit for the excursion of
the set point.
Range: -20÷rb°c 4÷rb°F Def.: 0
rb Maximum temperature set point
Limits the maximum value of parameters r1 and r9.With
compensation of the set point, using the external air probe,
this value also represents the upper limit for the excursion of
the set point.
Range: rA÷60°c rA÷140°F Def.: 50
rc Minimum humidity set point
Limits the minimum value which can be set using parameter
r5.
Range: 0÷rd%rH Def.: 0
rd Maximum humidity set point
Limits the maximum value which can be set using parameter
r5.
Range: rc÷100%rH Def.: 100
re type of temperature regulation
Selects the type of regulation.
0= proportional-type regulation
1= propor integral-type regulation.
Range: 0÷1 flag Def.: 0
rF Integration time for P+I action
Time constant for P+I regulation. Once the set time has elapsed,
if the error is still constant, the effect of the integral action is
equal as that for proportional. P+I regulation guarantees
maximum effectiveness when starting from stable proportional
regulation. P+I regulation is active only if the value read by the
probe is within 110% of the proportional zone. The integrator is
reset in stand-by, in sleep mode and in dehumidification.
Range: 10÷3600s Def.: 600
rG Authority for compensation
Constant for compensation of the operating set point based
on the temperature measured by probe B2.
Range: -2.0÷2.0 Def.: 0.5
rH cooling set point compensation
Establishes the set point (for external temperature B2) beyond
which compensation begins.
Range: -20÷60°c -4÷140°F Def.: 25.0
ri Heating set point compensation
Establishes the set point (for external temperature B2) below
which compensation begins.
Range: -20÷60°c -4÷140°F Def.: 10.0
rL Free cooling differential
Sets the differential to trigger the activation of free cooling
(shelters), that is external air inlet by the opening of a
damper.
The free-cooling action is dependent on the following
relationship:
B1-B2 > rL i.e. (room temperature - external air temperature)
> rL
DESCRIPTION AND CONFIGURATION OF THE PARAMETERS
