Carel easy way aria, User Manual, Page: 26 / 44

26
GB
easy way ARIA +030220841 - rel. 1.0 - 26.10.2007
Cooling mode
In ou mode the cooling request sees the following trend.
RH = 0 •
RC •
Fig. 4.d.o
Heating mode
In mode the heating request sees the following trend.
RC = 0 •
RH •
Fig. 4.d.p
Automatic humidifi cation/dehumidifi cation algorithm
The humidifi cation/dehumidifi cation algorithm is used to inform the
master-supervisor of the humidifi cation or dehumidifi cation request in
the location where the terminal is installed.
If the humidity sensor is fi tted (see par. 6.1.2) the terminal will be able to
activate the automatic humidifi cation/dehumidifi cation according to the
set point and the value read by the humidity sensor.
Automatic mode
In mode the heating/cooling request sees the following trend.
Fig. 4.d.q
Fan mode
In the algorithm is disabled:
RC = 0 •
RH = 0 •
The function is disabled if Diff = 0% RH •
The humid. request (RU) is enabled in • , ou
The dehumid. request (RD) is enabled in • ou
symbol description min max def um type index R/W notes
Umid Ambient humidity 1.0 100.0 --- %rH A 2 R
-
Set umid Humidity set point 0.0 100.0 50.0 %rH A 7 R/W
-
Diff
Humidifi cation algorithm diff erential
0 algorithm disabled
0.0 25.0 5.0 %rH A 13 W -
RU
Humidifi cation request
0 request not active
1 request active
0 1 - - D 9 R -
RD
Deumidifi cation request
0 request not active
1 request active
0 1 - - D 10 R -
Tab. 4.q
Requests in cool, heat, auto mode
Fig. 4.d.r
Dry mode
In mode the dehumidifi cation request is always active (manual
dehumidifi cation), irrespective of the set point and humidity reading.
RD = 1 •
RU = 0 •
Fan mode
In mode the algorithm is disabled:
RD = 0 •
RU = 0 •
Display
If humidifi cation request RU = 1, the terminal will display the symbol
If dehumidif. request RD = 1, the terminal will display the symbol
.
Fig. 4.d.s Fig. 4.d.t