Overtemp Prot Pump Circuit; Mixing Valve Control - Siemens Albatros RVS46 Series User Manual

Overtemp prot pump circuit

Mixing valve control

Actuator type
Switching differential 2-
pos
Mixing valve boost
Actuator running time
74/138
Siemens
Building Technologies
TR
TRwA1
TRK
TRR
-15
TRwA1 Reduced setp increase start
TRwA2 Reduced setp increase end
TRK Comfort cooling setpoint
TRR Reduced room temperature setpoint
TAgem Composite outside temperature
Line no.
HC1 HC2 HCP
820 1120 1420
In the case of heating plant with pump heating circuits, the flow temperature of the
heating circuit can be higher than the flow temperature demanded by the heating curve,
due to requests from other heat consumers (mixing heating circuit, DHW charging,
external heat demand), or a parameterized minimum heat generation temperature. As a
result of this too high flow temperature, the pump heating circuit would assume
excessive temperatures.
Function "Overtemperature protection for pump heating circuits" ensures that the
energy supply for pump heating circuits corresponds to the demand from the heating
curve by activating / deactivating the pump.
Line no.
HC1 HC2
830 1130
832 1132
833 1133
834 1134
The selection of the type of actuator determines the control behavior for the type of
mixing valve actuator used.
For the 2-position actuator, the 2-position switching differential must also be adapted.
This is not required when using a 3-position actuator.
To ensure proper mixing valve flow temperature control, the flow temperature must be
higher than the demanded setpoint of the mixing valve flow temperature. The value set
here is added to the request.
Setting the running time of the actuator used with the mixing valve.
User Manual
Heating circuits
TRwA2
-5 TAgem
Operating line
Overtemp prot pump circuit
Operating line
Mixing valve boost
Actuator type
2-position ¦ 3-position
Switching differential 2-pos
Actuator running time
CE1U2353en
2014-07-30