30
© 2009 Merten by Schneider Electric
Push-button, 4-gang plus with room temperature control unit and IR receiver
Multifunction with RTCU and FanCoil 1817/1.0
Getting to know and parameterising the room temperature control unit
Setpoint adjustment affects all operation modes
In this setting, you not only change the setpoint temper-
ature for the current operation mode, you change all the
setpoint temperatures in the same way and at the same
time. The only setpoint temperatures that are not affect-
ed are those for the frost/heat protection. These opera-
tion modes also specify the limits of the setpoint
adjustment. It is therefore not possible to set setpoint
temperatures lower than the frost protection or higher
than the heat protection.
You can specify the setpoint adjustment directly via the
"Setpoint adjustment input" object and the control
menu. By comparison, you use the "Current setpoint
temperature input" object to specify a new setpoint tem-
perature. Setpoint adjustment is determined here by
the difference between the current setpoint tempera-
ture and the "reference setpoint for calculating the set-
point adjustment".
The active operating state of the controller is deter-
mined by the states of the communication objects:
"Comfort", "Night reduction", "Frost/heat protection"
and "Dewpoint alarm".
The highest priority when calculating the setpoints is
the dewpoint alarm. If it occurs, heating continues to be
possible but cooling is deactivated ("0" to the controller
output). The dewpoint alarm is terminated when its
communication object is set to "0".
After a reset, the operation mode you preconfigured is
active. The corresponding setpoints then also apply. If
the setpoint that was set is changed via the control
menu and the value is higher or lower than the set limit,
an acoustic signal can inform you of this (you can set
this on the "Signal function" tab).
When a setpoint adjustment is received via the bus, the
controller checks whether it lies within the parameter-
ised limits, and if necessary, adjusts it to the corre-
sponding limits.
Example 1
Cooling/heating
Limits of setpoint adjustment = +3 K/-3 K
Setpoint adjustment: "Setpoint adjustment input" object = +5 °C
Initial status
Result
Cooling:
Heating protection = 35 °C
Night = 28 °C
Standby = 26 °C
Comfort = 24 °C
Heating:
Comfort = 21 °C
Standby = 19 °C
Night = 17 °C
Frost protection = 7 °C
Cooling:
Heat protection = 35 °C
Night =
31 °C
Standby =
29 °C
Comfort =
27 °C
Heating
Comfort =
24 °C
Standby =
22 °C
Night =
20 °C
Frost protection = 7 °C
Example 2
Cooling/heating
Limits of setpoint adjustment = +10 K/-10 K
Setpoint adjustment: "Setpoint adjustment input" object = +20 °C
Initial status
Result
Cooling:
Heating protection = 35 °C
Night = 28 °C
Standby = 26 °C
Comfort = 24 °C
Heating:
Comfort = 21 °C
Standby = 19 °C
Night = 17 °C
Frost protection = 7 °C
Cooling:
Heat protection = 35 °C
Night =
35 °C
Standby =
33 °C
Comfort =
31 °C
Heating
Comfort =
28 °C
Standby =
26 °C
Night =
24 °C
Frost protection = 7 °C
Example 3
Cooling/heating
Limits of setpoint adjustment = +3 K/-3 K
New set value: object "Current setpoint temperature input" = 24 °C
Reference setpoint for calculating the setpoint adjustment = 21 °C
Calculated setpoint adjustment = +3 °C
Initial status
Result
Cooling:
Heating protection = 35 °C
Night = 28 °C
Standby = 26 °C
Comfort = 24 °C
Heating:
Comfort = 21 °C
Standby = 19 °C
Night = 17 °C
Frost protection = 7 °C
Cooling:
Heat protection = 35 °C
Night =
31 °C
Standby =
29 °C
Comfort =
27 °C
Heating
Comfort =
24 °C
Standby =
22 °C
Night =
20 °C
Frost protection = 7 °C
