Gewiss CHORUS GW 16 974CB Manuel De Programmation page 64

Speed V1 is activated when the temperature value is lower than the "setpoint -
1heat
" value (in heating mode) or higher than the "setpoint +
cooling mode), and deactivated when the temperature value reaches the "setpoint -
value (in heating mode) or the "setpoint +
is also deactivated when a higher speed needs to be activated.
Speed V2 is activated when the temperature value is lower than the "setpoint -
1heat - 2heat " value (in heating mode) or higher than the "setpoint +
1cool 2cool
+ " value (in cooling mode), and deactivated when the temperature value reaches
valve
the "setpoint -
1cool " value (in cooling mode). The second speed is also deactivated when a higher speed
needs to be activated.
Speed V3 is activated when the temperature value is lower than the "setpoint -
1heat - 2heat -
valve 1cool
+ +
temperature value reaches the "setpoint -
mode) or the "setpoint +
With regards the heating (cooling) solenoid valve, you can see that once the detected
temperature is lower (higher) than the "setpoint -
thermostat sends the activation command to the solenoid valve that manages the heating
(cooling) system; the solenoid valve is deactivated when the detected temperature reaches
the fixed setpoint value. In this way, the heating (cooling) of the fan coil can also be exploited
for irradiation, without any speed being activated.
To avoid continuous switchovers, the thermostat can wait up to 2 minutes before sending
the activation command to the actuator that controls the temperature adjustment system, or
to the actuator channels that command the fan coil speeds.
Both figures refer to the three-stage control of the fan coil, as the descriptions are complete.
For two-stage or single-stage control, the logic is the same, but not all the speeds are
controlled.
USER INSTRUCTIONS
1heat
- " value (in heating mode) or the "set-point +
3heat " value (in heating mode) or higher than the "setpoint +
2cool 3cool
+ " value (in cooling mode), and deactivated when the
valve 1cool
+
valve " value (in cooling mode). The first speed
valve 1heat
- -
2cool
+ " value (in cooling mode).
valve
" ("set-point +
64
valve
valve 1cool
+ " value (in
valve
valve
valve
valve
valve
2heat
" value (in heating
valve
") value, the
-
"
-
+
+
-