Configuration Of Plant; Pump Function Output Q1; Use Sensor Input B70/B4 - Siemens RVA47.320 User Manual

Cascade controller for modulating gas-fired boilers
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Benefit
Description
Note
Setting
Effect
Benefit
Description
Setting
Effect
Use in cascades
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HVAC Products

Configuration of plant

4.25

Pump function output Q1

Use of pump for different types of plant
This parameter defines the function provided by the pump connected to terminal Q1.
Setting of this function has an impact on automatic generation of the type of plant.
Operating line 53.
1. Press the operating line selection buttons to select operating line 95.
2. Press the + / - buttons to select the required function of the circulating pump.
Setting range
1...5
The pump provides one of the following functions, depending on the setting made:
1
Circulating pump operates as a heating circuit pump of the controller-internal
pump heating circuit or no pump is available.
2
Circulating pump works as a system pump for the heating circuits only
(located after the d.h.w. storage tank).
3
Circulating pump works as a system pump for the heating circuits and for the
d.h.w. (located before the d.h.w. storage tank).
4
Circulating pump operates as a d.h.w. circulating pump
5
Circulating pump operates as an H1 pump
Pump overrun is active with all settings, with the exception of setting 4.
4.26

Use sensor input B70/B4

The same sensor input can be used for different functions
This parameter setting defines the function adopted by the temperature sensor
connected to terminal B70/B4.
1.
Press the operating line selection buttons to select operating line 97.
2.
Press the + / - buttons to select the required function of the input B70/B4.
Setting range
1...2
Depending on the setting made, the sensor provides the following function:
1
The sensor is used for measuring the return temperature (B70).
2
The sensor is used for measuring the buffer storage tank temperature (B4).
If, with the first controller, sensor input B70/B4 is defined for use with a return
temperature sensor (B70), for instance, it can be defined with another controller of the
Basic Documentation RVA47.320
Description of the heating engineer settings
Unit
-
Unit
-
Factory setting
1
Factory setting
1
CE1P2379E
15.07.2002

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