AERMEC Novatherm TRS251 Manuel D'installation Et Mise En Service page 43

EN
6.
Filter alarm: the filter pressure switch on the access door is used to monitor filter F9. When the pressure difference is
greater than set value, the switch transmits a "dirty filter" signal to the control system. The filter alarm signal will flash on
the LCD display to remind the use to clean or replace the filter.
Attention:
the correct pressure switch factory setting is 150 pa.
If need, as showed by the picture, open the plastic cover and use a screwdriver to set the correct pressure difference.
Pressure switch is installed by manufacturer ex-factory, it is wired to the PCB PORT 4. For the details please refer to the wiring
diagram on dedicated chapter (page
7.
Setting the parameters: to access the parameter setting interface, keep the MODE key pressed for 6 seconds until
you hear a beep. To pass from one parameter to another (from 00 to 25), press the SET key briefly. When the display
shows the number of the parameter you want to modify, press the MODE key briefly. The parameter value will flash in
the upper right corner. To modify it, press the keys
parameters have been set, the system takes about 15 seconds to register them. The power supply must not be
disabled during this time. To set the appropriate parameters for the various requests, refer to the parameter table
below.
43
By-Pass ON
Pressure Switch
Filter
Alarm
ON
39).
Filter
Alarm
OFF
▼), the press SET to save the settings. Warning: once the
(▲ and
Parameter
Value
Parameter
Number
By-Pass OFF