Siemens RVA47.320 - Switching Differential of the Room Temperature

77/166
Siemens Building Technologies Basic Documentation RVA47.320 CE1P2379E
HVAC Products Description of the heating engineer settings 15.07.2002
Defines the impact of room temperature deviations on the controlled system.
Room temperature deviation is the temperature differential between actual room
temperature and room temperature setpoint.
1. Press the operating line selection buttons to select operating line 101.
2. Press the + / – buttons to select the room influence.
Setting range Unit Factory setting
0 / 1 Increment 1
The setting will activate or deactivate the effect of room temperature deviations on the
temperature control.
Entry:
0 Room influence inactive:
The measured room temperature will not affect temperature control
1 Room temperature influence active: The measured room temperature will affect
the temperature control
Room influence means:
Deviations of the actual room temperature from the setpoint are acquired and taken into
account by temperature control.
To use the control variant "Weather compensation with room influence", the following
conditions must be satisfied:
• An outside sensor must be connected (either to B9, the PPS or the LPB).
• Setting "Room temperature influence" (101) must be active (1)
• The respective room unit must be connected to terminal A6 (PPS)
• There may be no controlled thermostatic radiator valves
(If such valves are present, they must be set to their fully open position).
4.29 Switching differential of the room
temperature
• Temperature control with pump heating circuit
• Prevents overtemperatures in the room in the case of pump heating circuits
Serves as a room temperature limitation with pump heating circuits
1. Press the operating line selection buttons to select operating line 102.
2. Press the + / – buttons to set the room temperature switching differential.
Setting range Unit Factory setting
– – . –
0.5...4.0
-
°C
– – . –
The switching differential for two-position control will be changed.
Entry:
- - . - Switching differential is inactive
• The pump always remains activated
Description
Setting
Effect
Room influence
Benefits
Description
Setting
Effect