Carel thTx Mode D'emploi page 21

3: The fan is not visible in either heating or cooling mode, but the
fan mode is selectable
Mode Icon shown
4: Heating and cooling modes only available (fan mode not visible)
Mode Icon shown
Furthermore, by changing the value of variable COIL 59, MODE setting
managed via Modbus RS485, icon 3 will be shown in the top left of the
screen:
1 3
2 4
Cool On Heat On
SET
Now set HR140 (S_MODE) to completely overwrite the MODE; setting the
register to specific values will display the corresponding icon:
0x03: Cool ( );
0x04: Heat ( );
0x05: Ventilation ( );
0x255: NO ACTIONS (all icons cleared); this setting allows the thTx to be
used as a room probe only.
1 3
2 4
Cool On Heat On
SET
Fig. 2.d
Setting variable COIL 60, "Fan - button selection" managed via Modbus
RS485, icon 4 will be shown in the top left of the screen:
Ventilation ramp
YES NO
YES NO
YES YES
Ventilation ramp
YES NO
YES NO
NO NO
°F °C
%
Fig. 2.c
°F °C
%
Now set HR141 (S_FAN) to completely overwrite the fan speed; setting
the register to specific values will display the corresponding icon:
0: all OFF ( );
1: Fan_Speed1 ( );
2: Fan_Speed1 + Speed2 (
3: Fan_Speed1 + Speed2 + Speed3 (
255: Fan_Speed1 + Speed2 + Speed3 + Auto (
Notice: in ventilation mode, the fan speed has no relation to the set
temperature.
Notice: It is possible to combine configurations to have complete
control of the icons.
11
ENG
);
);
).
"thTx" +030220865 rel. 1.0 - 11.03.2024