Carel easy way aria, User Manual, Page: 23 / 44

23
GB
easy way ARIA +030220841 - rel. 1.0 - 26.10.2007
Temperature and humidity set point
The temperature set point (steps of 0.5 °C; 1 °F) or humidity set point
(steps of 1%rH) can be set by
directly pressing the UP/DOWN buttons, depending on the value 1.
displayed in the main numeric fi eld.
par. description min max def UOM type index R/W notes
loc 1
Main display
1 temperature set point
2 temperature
3 humidity set point
4 humidity
1 4 2 - I 19 R/W -
association with the multifunction button (see confi guration par. 2.
4.2.8).
In this case:
Press the multifunction button • until reaching the following screen
Fig. 4.d.f Fig. 4.d.g
COMFORT
The COMFORT function is useful for applications such as hotel rooms
where the ambient temperature settings need to be limited.
The ambient temperature is limited within a range of ±5 °C (±9 °F), with
steps of 0.5 °C (1 °F), from the reference temperature defi ned by an
administrator (via supervisor or terminal before activating the COMFORT
function), and that is not then visible on the terminal.
The function can be activated using parameter (loc20)
par. description min max def UOM type index R/W notes
loc 20
Display set point/COMFORT
0 set point
1 COMFORT
0 1 0 - D 15 R/W
password
access
The COMFORT value can be modifi ed by the user with the same procedure
used to set the temperature set point.
.
Note : the time bands with temperature set point (par.4.2.3) will
change the reference temperature, leaving the user the possibility
to change the allowed diff erence.
Example :
To reference set point is 23 °C. The user will be able to change the ambient
temperature between 18 °C and 28 °C. Press the UP and DOWN buttons
to set the temperature set point to 23.0 °C.
Fig. 4.d.j
Fig. 4.d.h Fig. 4.d.i
To exit the selected function:
By time, 5 seconds after the last button is pressed •
manually by pressing the button •
Note : The temperature set point is displayed in the current unit of
measure (see paragraph 4.3 “°C/°F“).
Activate the COMFORT function: parameter loc20 = 1. •
Press the UP and DOWN buttons to change the temperature diff erence •
from the reference (23 °C)
Fig. 4.d.k
In this case the current working set point will be 23-2.5 = 20.5 °C
Note : the function is not active in FAN mode.