Setpoints; Outside Temperature Source; Boiler Temperature Setpoint Of Bmus - Siemens RVA47.320 User Manual

Benefit
Description
Setting
Effect
Display
Note
Benefit
Description
Setting
Note
66/166
Siemens Building Technologies
HVAC Products

Setpoints

.
4.12

Outside temperature source

•
Display and location of actual outside temperature measurement
When interconnecting several controllers, only one outside sensor is required. This
sensor will be connected to any of the controllers and delivers its signal via LPB.
The controllers to which no sensor is connected adopt the outside temperature signal
via the bus system, from a controller to which a sensor is connected.
1. Press the operating line selection buttons to select operating line 62.
2. No setting can be made with the + / - buttons.
Display
– – . – –
00.01...14.16
The address of the outside detector that currently delivers the outside temperature
signal will automatically be displayed on this line.
– – . – – No outside sensor signal
01.02 Address of outside sensor
The first 2 digits represent the segment number (01.)
The second digit corresponds to the device number (.02)
If required (e.g. due to different exposure to solar radiation of the various buildings), the
different sections of the system can be equipped with their own outside sensors.
For more detailed information, refer to section "Outside temperature source" of "Local
Process Bus (LPB), Basic Documentation, System Engineering" (document no.
CE1P2370E).
4.13

Boiler temperature setpoint of BMUs

•
Indication of BMU temperature setpoints
•
Better overview of the plant's operational status
The lowest connected BMU number with the associated temperature setpoint will
automatically be displayed on this line. The temperature setpoints of the other BMUs
used in the cascade can be interrogated by pressing the + / - buttons. Nonexisting
BMUs will be skipped.
1. Press the operating line selection buttons to select line 65.
2. Press the + / - buttons to select the setpoint of the required BMU.
Display
1...4 / 0...140
The setpoints can only be displayed but not changed. The function helps better
understand the control sequences taking place in the controller.
No setpoint is displayed (---), when
•
there is no heat demand from the consumers
•
no BMU is connected to the controller
Basic Documentation RVA47.320
Description of the heating engineer settings
Unit
No signal
Segment and device address
Unit
BMU number / °C
CE1P2379E
15.07.2002