5
x
Operation
30
FA ROTEX Solaris RPS3 P2 - 06/2012
5.2.3 Manual operation
The system can started manually with the time set in the parameter "H/A" for start-up and testing only. All control functions are
disabled and both pumps run continuously at the specified output independently of the system temperatures.
• Pressing (>1 s) both arrow keys simultaneously activates or deactivates manual operation.
5.2.4 Solaris FlowSensor
The optional Solaris FlowSensor is used to measure the flow "V" and the feed temperature "T
V
".
If a sensor is connected and activated:
– the measurement values "V" and "T
V
" are displayed.
– the control systems operate after the filling process with the actual system temperature difference of feed and return
temperature.
If the system has detected the FlowSensor once, a fault signal is shown if the sensor is faulty or disconnected (see section 6.1).
The system now operates in emergency mode without a FlowSensor.
If the control systems detect a FlowSensor after a new installation or a reset by a technician, the value "20" in parameter
"FLS active" is automatically set. It is only necessary to check and, if necessary, adjust the correct parameter value for the
specific FlowSensor (see table 5-1). The Flow Sensor can be disabled by input of the parameter value "0".
If the FlowSensor is disabled by the heating expert, a fault signal is not shown. The control system now operates without the
measured value for the flow. The feed temperature "T
V
" is set to be equal to the solar panel temperature "T
K
".
5.2.5 Output calculation, maximum values and yield count
If a Solaris FlowSensor is connected, the system operating data are calculated and balanced, such as the current heat output and
the solar heat yield. The maximum and calculated values can be shown on the display (see chapter 5.3). Values greater than "0"
that have not been deleted will continue to be displayed even after removal or deactivation of the FlowSensors (without further
updates).
CAUTION!
Uncontrolled manual operation may cause vapour pressure pulses, heat loss, excessive storage tank tempera-
tures and in extremely cold conditions frost damage.
To prevent vapour pressure pulses:
• the solar panel temperature must be T
K
< T
K
zul. Manual operation is blocked if T
K
> T
K
zul and can only
be started after sufficient cooling of the solar panels.
FlowSensor
Parameter value
"FLS active"
Minimum flow
start phase "V1" in l/min
Minimum flow
operating phase "V2" in l/min
1.0 (
on request)
12
1.5
1.0
1.3 (
16 41 07)
20*
2
1.5
2.0 (
on request)
40
5
2.5
5.0 (
16 41 03)
100
10
5.5
Table 5-1 Overview of FlowSensors
*automatically set value with detected FlowSensor
Balancing and calculating system operating data (e.g. solar heat yield) does not replace official calibration of
the heat meter. The values must not be used for distribution of heat costs or similar official balances.
