20
Operation in automatic mode
The free-cooling / free-heating mode is programmed with the following algorithm: The lower tempera-
ture limit of the T
ODA
probe is a minimum of 12ºC, below this temperature the bypass operation does not
happens in order to avoid discomfort due to the entry of air excessively cold.
9.3.3. Setting the by-pass pass temperature in free-cooling mode
Pressing on the button modifi es the setpoint temperature value of the by-pass. Below this temperatu-
re, whenever there is a demand for cooling in the building, the by-pass damper will be opened:
7HPS
$/7$
7HPS
0(',$
7HPS
%$-$
9HORFLGDG
0(',$
7HPS
$/7$
HIGH
temp
HIGH
temp
MEDIUM
temp
MEDIUM
temp
LOW
temp
Temperature
Default value*
Led colour
High
13ºC
Red
Medium
18ºC
Orange
Low
23ºC
Green
* The setpoint temperatures can be modified (See chapter Control settings).
9.4. ADVANCED PARAMETERS CONFIGURATION
In addition to the functions that can be performed through the three buttons of the hand terminal, it is
also possible to modify some of the parameters and functionalities set from factory. Depending on the
parameter to be modifi ed, it will be necessary to access the electronic board of the controller (inside the
electrical cabinet) or the remote hand terminal.
Access to the selectors inside the remote hand terminal (rotary type)
By disassembling the front of the remote control you have access to a serie of potentiometers that allow
to modify some of the factory settings.
Using a screwdriver, perform light lever in the side slots until the front of the control is released.
View of the rotary selectors, once the cover is removed:
6HOHFWRU9HO0HGLD
6HOHFWRU9HO$OWD
6HOHFWRU9HO%DMD
6HOHFWRU
%DODQFH
6HOHFWRU)XQFLRQHVHVSHFLDOHV
Selector 3 (High speed)
Selector 4
Balance
Selector 1 (Low speed)
Selector 2 (Medium speed)
Selector 2 (Special functions)
