Potterton Paramount four Installation Manual page 86

9 Settings
Fig.22 Room temp limitation
1
0
Fig.23 Boost heating
86 Paramount four 30 – 115 kW
Setting for weather compensation with room influence: 1% - 99%
Setting for pure weather compensation: ---%
Setting for pure room compensation: 100%
Room temp limitation (760, 1060, 1360)
TRx Room temperature actual value
TRw Room temperature setpoint
SDR Room switching difference
P Pump
t Time
1 On
0 Off
The heating circuit pump is switched on or off subject to room temperature
in line with the switching differential set here. The switch-off point of the
pump is set as the difference to the set room setpoint. The pump switch-
on point is 0.25 °C below the room setpoint. This function is only possible
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with the RGT/ RGTF or RGB room unit and active room influence.
Central heating boost (770, 1070, 1370)
TRw Room temperature setpoint
TRx Room temperature actual value
TRS
A
The boost heating becomes active when the room temperature setpoint is
switched over from protection or reduced mode to comfort mode. During
the boost heating, the room temperature setpoint is increased by the value
set here. This causes the actual room temperature to rise to the new tem­
perature setpoint quickly. The boost heating ends when the actual room
temperature captured by a RGT/RGTF or RGB room unit (
RA-0000069
rises to 0.25 °C below the comfort setpoint.
Without room sensor or without room influence, boost heating is imple­
mented in accordance with an internal calculation. Due to the room set­
point acting as a basis, the effect of the duration of the boost heating and
that of the flow temperature works differently for each outside temperature.
Quick setback (780, 1080, 1380)
Quick reduction becomes active if the room temperature setpoint is switch­
ed from comfort level to another operating level (reduced mode or protec­
tion mode). During quick reduction the heating circuit pump is switched off
and the mixing valve is also closed in the case of mixed circuits. During
quick reduction no heat requirement is sent to the heat generator.
Quick reduction is possible with or without room sensor: with room sensor
the heating circle function is switched off until the room temperature has
dropped to the reduced setpoint or frost protection setpoint. When the
room temperature has dropped to the reduced setpoint or the frost protec­
tion setpoint, the heating circuit pump starts again and the mixing valve is
Note
However, if there is a RGT/RGTF or RGB room unit connected,
and the setting "room influence" is set between 1 and 99%, the
deviation of the actual and set room temperatures is captured and
taken into account in the temperature control. In this way any ex­
ternal heat can be taken into account enabling a constant room
temperature to be achieved. The influence of the deviation can be
set in percentage. The more representative the lead room is (cor­
rect room temperature, correct installation location etc.), the high­
er the value can be set, giving the room temperature even greater
relevance.
Caution
Should there be radiator valves in the lead room (where the room
sensor is installed), they must be opened fully.
Note
A room sensor must be connected. This function only applies to
pumped heating circuits.
Room temperature setpoint-raised
accessories )
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