Thermo Solar SGC36HV, Руководство пользователя

Страница: 48 / 184

User and settings manual
E
N
G
48
SETTING THE FLOW IN A SOLAU SYSTEM AND TESTING THE CONTUOL
FUNCTION
Based on the surface of the installed collectors, the rated system flow has to be deter-
mined, 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
m
2
, 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 on
page 20). 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 and S3.8 for pump
R3.
.
CONNECTION OF A HIGH
-
EFFICIENCY PUMP WITH AN EXTEUNAL CONTUOL
SIGNAL
The SGC36HV controller enables the regulation of high
-
efficiency pump rotation with
PWM external control signal or 0÷10 V. This type of rotation regulation is activated by
setting the parameter S3.1=2 or 4 for bypass pump R2 and R3. After connecting the
pump, you have to set the parameter S3.1 to S3.6 for the R2 pump and parameter S3.7 to
S3.12 for the R3 pump.
Red wire = PWM/0
-
10V signál
Black wire = GND
A1343_3 MJ/OD 06/2018