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SGC controller has a special function which enables user, to simulate temperature for each
sensor and through that study behaviour and operation of the controller.
This function is intended for cases of maintenance, malfunctions or suspected false controller
operation. Simulation mode is activated in the following way. Press key
display of hydraulic scheme. Now press and hold key
simulation mode. Press button
change temperature of the selected sensor. Controller changes temperature symbol from T to
S, when the temperature is simulated. Output is activated accordingly to selected scheme and
simulated or actual temperatures. Simulation mode can be cancelled by pressing button
if for more than 5 minutes no button is pressed.
FLOW SETUP AND TEST OF RPM CONTROL
Based on the surface of the installed collectors, the rated system flow has to be determined,
ranging from 0.5 to 1.2 l/min for each square meter of solar collectors or according to the
manufacturer's instructions (example: for 3 solar collectors with a total surface of 6 m2, the
rated flow in the system is 5,4 l/min, with the selected flow of 0,9 l/min per square meter of a
collector).
TESTING THE FUNCTIONING OF RPM REGULATION FOR CLASSIC BYPASS PUMPS
Manually turn on the bypass pump to maximum rotation (see section Manual operation). Set
the speed on the bypass pump to the rate, where the pump slightly exceeds the calculated
rated system flow. Use the regulation valve to adjust the flow in the system to be equal to the
calculated rated flow. On the controller, set the pump rotation to 40 % and check whether the
float on the flow meter is lifted. If there is no flow in the system, set the next rotation rate on
the controller, namely 55 %, and check the flow again. If there is still no flow, you need to set the
next pump rotation rate on the controller, namely 70 %, or increase the rated system flow and
repeat the procedure. If you had to increase the initial pump rotation rate in the test, the initial
phase of pump function has to be entered into the parameter S3.2 for the R2 pump.
TESTING THE FUNCTIONING OF PWM / 0-10V REGULATION FOR HIGH-EFFICIENCY BYPASS
PUMPS
Completely open the regulation valve for the regulation of the flow in the system. Manually set
the rotation, where the pump achieves the rated flow in the system. Enter this value into the
parameter S3.5 for the R2 pump. Now you have to check the minimum rotation, at which the
pump still enables flow in the system. This is done by decreasing pump rotation to the rate,
where the pump still enables a constant flow in the system. Enter the minimum pump rotation
into the parameter S3.2 for the R2 pump.
Installation manual
TEMPERATURE
SIMULATION MODE
to scroll between sensors and button
to select screen with
for 10 seconds. Controller switches to
EN
or
to
or
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